Rev 5060 | Rev 5367 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 5060 | Rev 5354 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright © 2008 Intel Corporation |
2 | * Copyright © 2008 Intel Corporation |
3 | * |
3 | * |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * copy of this software and associated documentation files (the "Software"), |
5 | * copy of this software and associated documentation files (the "Software"), |
6 | * to deal in the Software without restriction, including without limitation |
6 | * to deal in the Software without restriction, including without limitation |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
9 | * Software is furnished to do so, subject to the following conditions: |
9 | * Software is furnished to do so, subject to the following conditions: |
10 | * |
10 | * |
11 | * The above copyright notice and this permission notice (including the next |
11 | * The above copyright notice and this permission notice (including the next |
12 | * paragraph) shall be included in all copies or substantial portions of the |
12 | * paragraph) shall be included in all copies or substantial portions of the |
13 | * Software. |
13 | * Software. |
14 | * |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
21 | * IN THE SOFTWARE. |
21 | * IN THE SOFTWARE. |
22 | * |
22 | * |
23 | * Authors: |
23 | * Authors: |
24 | * Eric Anholt |
24 | * Eric Anholt |
25 | * |
25 | * |
26 | */ |
26 | */ |
27 | 27 | ||
28 | #include |
28 | #include |
29 | #include |
29 | #include |
30 | #include |
30 | #include |
31 | #include "i915_drv.h" |
31 | #include "i915_drv.h" |
32 | #include "i915_trace.h" |
32 | #include "i915_trace.h" |
33 | #include "intel_drv.h" |
33 | #include "intel_drv.h" |
34 | #include |
34 | #include |
35 | #include |
35 | #include |
36 | //#include |
36 | //#include |
37 | #include |
37 | #include |
38 | #include |
38 | #include |
39 | 39 | ||
40 | extern int x86_clflush_size; |
40 | extern int x86_clflush_size; |
41 | 41 | ||
42 | #define PROT_READ 0x1 /* page can be read */ |
42 | #define PROT_READ 0x1 /* page can be read */ |
43 | #define PROT_WRITE 0x2 /* page can be written */ |
43 | #define PROT_WRITE 0x2 /* page can be written */ |
44 | #define MAP_SHARED 0x01 /* Share changes */ |
44 | #define MAP_SHARED 0x01 /* Share changes */ |
45 | 45 | ||
46 | 46 | ||
47 | u64 nsecs_to_jiffies64(u64 n) |
47 | u64 nsecs_to_jiffies64(u64 n) |
48 | { |
48 | { |
49 | #if (NSEC_PER_SEC % HZ) == 0 |
49 | #if (NSEC_PER_SEC % HZ) == 0 |
50 | /* Common case, HZ = 100, 128, 200, 250, 256, 500, 512, 1000 etc. */ |
50 | /* Common case, HZ = 100, 128, 200, 250, 256, 500, 512, 1000 etc. */ |
51 | return div_u64(n, NSEC_PER_SEC / HZ); |
51 | return div_u64(n, NSEC_PER_SEC / HZ); |
52 | #elif (HZ % 512) == 0 |
52 | #elif (HZ % 512) == 0 |
53 | /* overflow after 292 years if HZ = 1024 */ |
53 | /* overflow after 292 years if HZ = 1024 */ |
54 | return div_u64(n * HZ / 512, NSEC_PER_SEC / 512); |
54 | return div_u64(n * HZ / 512, NSEC_PER_SEC / 512); |
55 | #else |
55 | #else |
56 | /* |
56 | /* |
57 | * Generic case - optimized for cases where HZ is a multiple of 3. |
57 | * Generic case - optimized for cases where HZ is a multiple of 3. |
58 | * overflow after 64.99 years, exact for HZ = 60, 72, 90, 120 etc. |
58 | * overflow after 64.99 years, exact for HZ = 60, 72, 90, 120 etc. |
59 | */ |
59 | */ |
60 | return div_u64(n * 9, (9ull * NSEC_PER_SEC + HZ / 2) / HZ); |
60 | return div_u64(n * 9, (9ull * NSEC_PER_SEC + HZ / 2) / HZ); |
61 | #endif |
61 | #endif |
62 | } |
62 | } |
63 | 63 | ||
64 | unsigned long nsecs_to_jiffies(u64 n) |
64 | unsigned long nsecs_to_jiffies(u64 n) |
65 | { |
65 | { |
66 | return (unsigned long)nsecs_to_jiffies64(n); |
66 | return (unsigned long)nsecs_to_jiffies64(n); |
67 | } |
67 | } |
68 | 68 | ||
69 | 69 | ||
70 | struct drm_i915_gem_object *get_fb_obj(); |
70 | struct drm_i915_gem_object *get_fb_obj(); |
71 | 71 | ||
72 | unsigned long vm_mmap(struct file *file, unsigned long addr, |
72 | unsigned long vm_mmap(struct file *file, unsigned long addr, |
73 | unsigned long len, unsigned long prot, |
73 | unsigned long len, unsigned long prot, |
74 | unsigned long flag, unsigned long offset); |
74 | unsigned long flag, unsigned long offset); |
75 | - | ||
76 | static inline void clflush(volatile void *__p) |
- | |
77 | { |
- | |
78 | asm volatile("clflush %0" : "+m" (*(volatile char*)__p)); |
- | |
79 | } |
75 | |
80 | 76 | ||
81 | #define MAX_ERRNO 4095 |
77 | #define MAX_ERRNO 4095 |
82 | 78 | ||
83 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
79 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
84 | 80 | ||
85 | 81 | ||
86 | static void i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj); |
82 | static void i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj); |
87 | static void i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj, |
83 | static void i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj, |
88 | bool force); |
84 | bool force); |
89 | static __must_check int |
85 | static __must_check int |
90 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
86 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
91 | bool readonly); |
87 | bool readonly); |
92 | static void |
88 | static void |
93 | i915_gem_object_retire(struct drm_i915_gem_object *obj); |
89 | i915_gem_object_retire(struct drm_i915_gem_object *obj); |
94 | 90 | ||
95 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
91 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
96 | struct drm_i915_gem_object *obj); |
92 | struct drm_i915_gem_object *obj); |
97 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
93 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
98 | struct drm_i915_fence_reg *fence, |
94 | struct drm_i915_fence_reg *fence, |
99 | bool enable); |
95 | bool enable); |
100 | - | ||
- | 96 | ||
101 | static unsigned long i915_gem_purge(struct drm_i915_private *dev_priv, long target); |
97 | |
102 | static unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv); |
98 | static unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv); |
103 | 99 | ||
104 | static bool cpu_cache_is_coherent(struct drm_device *dev, |
100 | static bool cpu_cache_is_coherent(struct drm_device *dev, |
105 | enum i915_cache_level level) |
101 | enum i915_cache_level level) |
106 | { |
102 | { |
107 | return HAS_LLC(dev) || level != I915_CACHE_NONE; |
103 | return HAS_LLC(dev) || level != I915_CACHE_NONE; |
108 | } |
104 | } |
109 | 105 | ||
110 | static bool cpu_write_needs_clflush(struct drm_i915_gem_object *obj) |
106 | static bool cpu_write_needs_clflush(struct drm_i915_gem_object *obj) |
111 | { |
107 | { |
112 | if (!cpu_cache_is_coherent(obj->base.dev, obj->cache_level)) |
108 | if (!cpu_cache_is_coherent(obj->base.dev, obj->cache_level)) |
113 | return true; |
109 | return true; |
114 | 110 | ||
115 | return obj->pin_display; |
111 | return obj->pin_display; |
116 | } |
112 | } |
117 | 113 | ||
118 | static inline void i915_gem_object_fence_lost(struct drm_i915_gem_object *obj) |
114 | static inline void i915_gem_object_fence_lost(struct drm_i915_gem_object *obj) |
119 | { |
115 | { |
120 | if (obj->tiling_mode) |
116 | if (obj->tiling_mode) |
121 | i915_gem_release_mmap(obj); |
117 | i915_gem_release_mmap(obj); |
122 | 118 | ||
123 | /* As we do not have an associated fence register, we will force |
119 | /* As we do not have an associated fence register, we will force |
124 | * a tiling change if we ever need to acquire one. |
120 | * a tiling change if we ever need to acquire one. |
125 | */ |
121 | */ |
126 | obj->fence_dirty = false; |
122 | obj->fence_dirty = false; |
127 | obj->fence_reg = I915_FENCE_REG_NONE; |
123 | obj->fence_reg = I915_FENCE_REG_NONE; |
128 | } |
124 | } |
129 | 125 | ||
130 | /* some bookkeeping */ |
126 | /* some bookkeeping */ |
131 | static void i915_gem_info_add_obj(struct drm_i915_private *dev_priv, |
127 | static void i915_gem_info_add_obj(struct drm_i915_private *dev_priv, |
132 | size_t size) |
128 | size_t size) |
133 | { |
129 | { |
134 | spin_lock(&dev_priv->mm.object_stat_lock); |
130 | spin_lock(&dev_priv->mm.object_stat_lock); |
135 | dev_priv->mm.object_count++; |
131 | dev_priv->mm.object_count++; |
136 | dev_priv->mm.object_memory += size; |
132 | dev_priv->mm.object_memory += size; |
137 | spin_unlock(&dev_priv->mm.object_stat_lock); |
133 | spin_unlock(&dev_priv->mm.object_stat_lock); |
138 | } |
134 | } |
139 | 135 | ||
140 | static void i915_gem_info_remove_obj(struct drm_i915_private *dev_priv, |
136 | static void i915_gem_info_remove_obj(struct drm_i915_private *dev_priv, |
141 | size_t size) |
137 | size_t size) |
142 | { |
138 | { |
143 | spin_lock(&dev_priv->mm.object_stat_lock); |
139 | spin_lock(&dev_priv->mm.object_stat_lock); |
144 | dev_priv->mm.object_count--; |
140 | dev_priv->mm.object_count--; |
145 | dev_priv->mm.object_memory -= size; |
141 | dev_priv->mm.object_memory -= size; |
146 | spin_unlock(&dev_priv->mm.object_stat_lock); |
142 | spin_unlock(&dev_priv->mm.object_stat_lock); |
147 | } |
143 | } |
148 | 144 | ||
149 | static int |
145 | static int |
150 | i915_gem_wait_for_error(struct i915_gpu_error *error) |
146 | i915_gem_wait_for_error(struct i915_gpu_error *error) |
151 | { |
147 | { |
152 | int ret; |
148 | int ret; |
153 | 149 | ||
154 | #define EXIT_COND (!i915_reset_in_progress(error)) |
150 | #define EXIT_COND (!i915_reset_in_progress(error)) |
155 | if (EXIT_COND) |
151 | if (EXIT_COND) |
156 | return 0; |
152 | return 0; |
157 | #if 0 |
153 | #if 0 |
158 | /* |
154 | /* |
159 | * Only wait 10 seconds for the gpu reset to complete to avoid hanging |
155 | * Only wait 10 seconds for the gpu reset to complete to avoid hanging |
160 | * userspace. If it takes that long something really bad is going on and |
156 | * userspace. If it takes that long something really bad is going on and |
161 | * we should simply try to bail out and fail as gracefully as possible. |
157 | * we should simply try to bail out and fail as gracefully as possible. |
162 | */ |
158 | */ |
163 | ret = wait_event_interruptible_timeout(error->reset_queue, |
159 | ret = wait_event_interruptible_timeout(error->reset_queue, |
164 | EXIT_COND, |
160 | EXIT_COND, |
165 | 10*HZ); |
161 | 10*HZ); |
166 | if (ret == 0) { |
162 | if (ret == 0) { |
167 | DRM_ERROR("Timed out waiting for the gpu reset to complete\n"); |
163 | DRM_ERROR("Timed out waiting for the gpu reset to complete\n"); |
168 | return -EIO; |
164 | return -EIO; |
169 | } else if (ret < 0) { |
165 | } else if (ret < 0) { |
170 | return ret; |
166 | return ret; |
171 | } |
167 | } |
172 | 168 | ||
173 | #endif |
169 | #endif |
174 | #undef EXIT_COND |
170 | #undef EXIT_COND |
175 | 171 | ||
176 | return 0; |
172 | return 0; |
177 | } |
173 | } |
178 | 174 | ||
179 | int i915_mutex_lock_interruptible(struct drm_device *dev) |
175 | int i915_mutex_lock_interruptible(struct drm_device *dev) |
180 | { |
176 | { |
181 | struct drm_i915_private *dev_priv = dev->dev_private; |
177 | struct drm_i915_private *dev_priv = dev->dev_private; |
182 | int ret; |
178 | int ret; |
183 | 179 | ||
184 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
180 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
185 | if (ret) |
181 | if (ret) |
186 | return ret; |
182 | return ret; |
187 | 183 | ||
188 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
184 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
189 | if (ret) |
185 | if (ret) |
190 | return ret; |
186 | return ret; |
191 | 187 | ||
192 | WARN_ON(i915_verify_lists(dev)); |
188 | WARN_ON(i915_verify_lists(dev)); |
193 | return 0; |
189 | return 0; |
194 | } |
190 | } |
195 | 191 | ||
196 | static inline bool |
192 | static inline bool |
197 | i915_gem_object_is_inactive(struct drm_i915_gem_object *obj) |
193 | i915_gem_object_is_inactive(struct drm_i915_gem_object *obj) |
198 | { |
194 | { |
199 | return i915_gem_obj_bound_any(obj) && !obj->active; |
195 | return i915_gem_obj_bound_any(obj) && !obj->active; |
200 | } |
196 | } |
201 | - | ||
202 | - | ||
203 | #if 0 |
- | |
204 | - | ||
205 | int |
- | |
206 | i915_gem_init_ioctl(struct drm_device *dev, void *data, |
- | |
207 | struct drm_file *file) |
- | |
208 | { |
- | |
209 | struct drm_i915_private *dev_priv = dev->dev_private; |
- | |
210 | struct drm_i915_gem_init *args = data; |
- | |
211 | - | ||
212 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
- | |
213 | return -ENODEV; |
- | |
214 | - | ||
215 | if (args->gtt_start >= args->gtt_end || |
- | |
216 | (args->gtt_end | args->gtt_start) & (PAGE_SIZE - 1)) |
- | |
217 | return -EINVAL; |
- | |
218 | - | ||
219 | /* GEM with user mode setting was never supported on ilk and later. */ |
- | |
220 | if (INTEL_INFO(dev)->gen >= 5) |
- | |
221 | return -ENODEV; |
- | |
222 | - | ||
223 | mutex_lock(&dev->struct_mutex); |
- | |
224 | i915_gem_setup_global_gtt(dev, args->gtt_start, args->gtt_end, |
- | |
225 | args->gtt_end); |
- | |
226 | dev_priv->gtt.mappable_end = args->gtt_end; |
- | |
227 | mutex_unlock(&dev->struct_mutex); |
- | |
228 | - | ||
229 | return 0; |
- | |
230 | } |
- | |
231 | #endif |
- | |
232 | 197 | ||
233 | int |
198 | int |
234 | i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, |
199 | i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, |
235 | struct drm_file *file) |
200 | struct drm_file *file) |
236 | { |
201 | { |
237 | struct drm_i915_private *dev_priv = dev->dev_private; |
202 | struct drm_i915_private *dev_priv = dev->dev_private; |
238 | struct drm_i915_gem_get_aperture *args = data; |
203 | struct drm_i915_gem_get_aperture *args = data; |
239 | struct drm_i915_gem_object *obj; |
204 | struct drm_i915_gem_object *obj; |
240 | size_t pinned; |
205 | size_t pinned; |
241 | 206 | ||
242 | pinned = 0; |
207 | pinned = 0; |
243 | mutex_lock(&dev->struct_mutex); |
208 | mutex_lock(&dev->struct_mutex); |
244 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) |
209 | list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) |
245 | if (i915_gem_obj_is_pinned(obj)) |
210 | if (i915_gem_obj_is_pinned(obj)) |
246 | pinned += i915_gem_obj_ggtt_size(obj); |
211 | pinned += i915_gem_obj_ggtt_size(obj); |
247 | mutex_unlock(&dev->struct_mutex); |
212 | mutex_unlock(&dev->struct_mutex); |
248 | 213 | ||
249 | args->aper_size = dev_priv->gtt.base.total; |
214 | args->aper_size = dev_priv->gtt.base.total; |
250 | args->aper_available_size = args->aper_size - pinned; |
215 | args->aper_available_size = args->aper_size - pinned; |
251 | 216 | ||
252 | return 0; |
217 | return 0; |
253 | } |
218 | } |
254 | 219 | ||
255 | void *i915_gem_object_alloc(struct drm_device *dev) |
220 | void *i915_gem_object_alloc(struct drm_device *dev) |
256 | { |
221 | { |
257 | struct drm_i915_private *dev_priv = dev->dev_private; |
222 | struct drm_i915_private *dev_priv = dev->dev_private; |
258 | return kmalloc(sizeof(struct drm_i915_gem_object), 0); |
223 | return kmalloc(sizeof(struct drm_i915_gem_object), 0); |
259 | } |
224 | } |
260 | 225 | ||
261 | void i915_gem_object_free(struct drm_i915_gem_object *obj) |
226 | void i915_gem_object_free(struct drm_i915_gem_object *obj) |
262 | { |
227 | { |
263 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
228 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
264 | kfree(obj); |
229 | kfree(obj); |
265 | } |
230 | } |
266 | 231 | ||
267 | static int |
232 | static int |
268 | i915_gem_create(struct drm_file *file, |
233 | i915_gem_create(struct drm_file *file, |
269 | struct drm_device *dev, |
234 | struct drm_device *dev, |
270 | uint64_t size, |
235 | uint64_t size, |
271 | uint32_t *handle_p) |
236 | uint32_t *handle_p) |
272 | { |
237 | { |
273 | struct drm_i915_gem_object *obj; |
238 | struct drm_i915_gem_object *obj; |
274 | int ret; |
239 | int ret; |
275 | u32 handle; |
240 | u32 handle; |
276 | 241 | ||
277 | size = roundup(size, PAGE_SIZE); |
242 | size = roundup(size, PAGE_SIZE); |
278 | if (size == 0) |
243 | if (size == 0) |
279 | return -EINVAL; |
244 | return -EINVAL; |
280 | 245 | ||
281 | /* Allocate the new object */ |
246 | /* Allocate the new object */ |
282 | obj = i915_gem_alloc_object(dev, size); |
247 | obj = i915_gem_alloc_object(dev, size); |
283 | if (obj == NULL) |
248 | if (obj == NULL) |
284 | return -ENOMEM; |
249 | return -ENOMEM; |
285 | 250 | ||
286 | ret = drm_gem_handle_create(file, &obj->base, &handle); |
251 | ret = drm_gem_handle_create(file, &obj->base, &handle); |
287 | /* drop reference from allocate - handle holds it now */ |
252 | /* drop reference from allocate - handle holds it now */ |
288 | drm_gem_object_unreference_unlocked(&obj->base); |
253 | drm_gem_object_unreference_unlocked(&obj->base); |
289 | if (ret) |
254 | if (ret) |
290 | return ret; |
255 | return ret; |
291 | 256 | ||
292 | *handle_p = handle; |
257 | *handle_p = handle; |
293 | return 0; |
258 | return 0; |
294 | } |
259 | } |
295 | 260 | ||
296 | int |
261 | int |
297 | i915_gem_dumb_create(struct drm_file *file, |
262 | i915_gem_dumb_create(struct drm_file *file, |
298 | struct drm_device *dev, |
263 | struct drm_device *dev, |
299 | struct drm_mode_create_dumb *args) |
264 | struct drm_mode_create_dumb *args) |
300 | { |
265 | { |
301 | /* have to work out size/pitch and return them */ |
266 | /* have to work out size/pitch and return them */ |
302 | args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64); |
267 | args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64); |
303 | args->size = args->pitch * args->height; |
268 | args->size = args->pitch * args->height; |
304 | return i915_gem_create(file, dev, |
269 | return i915_gem_create(file, dev, |
305 | args->size, &args->handle); |
270 | args->size, &args->handle); |
306 | } |
271 | } |
307 | 272 | ||
308 | /** |
273 | /** |
309 | * Creates a new mm object and returns a handle to it. |
274 | * Creates a new mm object and returns a handle to it. |
310 | */ |
275 | */ |
311 | int |
276 | int |
312 | i915_gem_create_ioctl(struct drm_device *dev, void *data, |
277 | i915_gem_create_ioctl(struct drm_device *dev, void *data, |
313 | struct drm_file *file) |
278 | struct drm_file *file) |
314 | { |
279 | { |
315 | struct drm_i915_gem_create *args = data; |
280 | struct drm_i915_gem_create *args = data; |
316 | 281 | ||
317 | return i915_gem_create(file, dev, |
282 | return i915_gem_create(file, dev, |
318 | args->size, &args->handle); |
283 | args->size, &args->handle); |
319 | } |
284 | } |
320 | 285 | ||
321 | 286 | ||
322 | #if 0 |
287 | #if 0 |
323 | 288 | ||
324 | static inline int |
289 | static inline int |
325 | __copy_to_user_swizzled(char __user *cpu_vaddr, |
290 | __copy_to_user_swizzled(char __user *cpu_vaddr, |
326 | const char *gpu_vaddr, int gpu_offset, |
291 | const char *gpu_vaddr, int gpu_offset, |
327 | int length) |
292 | int length) |
328 | { |
293 | { |
329 | int ret, cpu_offset = 0; |
294 | int ret, cpu_offset = 0; |
330 | 295 | ||
331 | while (length > 0) { |
296 | while (length > 0) { |
332 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
297 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
333 | int this_length = min(cacheline_end - gpu_offset, length); |
298 | int this_length = min(cacheline_end - gpu_offset, length); |
334 | int swizzled_gpu_offset = gpu_offset ^ 64; |
299 | int swizzled_gpu_offset = gpu_offset ^ 64; |
335 | 300 | ||
336 | ret = __copy_to_user(cpu_vaddr + cpu_offset, |
301 | ret = __copy_to_user(cpu_vaddr + cpu_offset, |
337 | gpu_vaddr + swizzled_gpu_offset, |
302 | gpu_vaddr + swizzled_gpu_offset, |
338 | this_length); |
303 | this_length); |
339 | if (ret) |
304 | if (ret) |
340 | return ret + length; |
305 | return ret + length; |
341 | 306 | ||
342 | cpu_offset += this_length; |
307 | cpu_offset += this_length; |
343 | gpu_offset += this_length; |
308 | gpu_offset += this_length; |
344 | length -= this_length; |
309 | length -= this_length; |
345 | } |
310 | } |
346 | 311 | ||
347 | return 0; |
312 | return 0; |
348 | } |
313 | } |
349 | 314 | ||
350 | static inline int |
315 | static inline int |
351 | __copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset, |
316 | __copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset, |
352 | const char __user *cpu_vaddr, |
317 | const char __user *cpu_vaddr, |
353 | int length) |
318 | int length) |
354 | { |
319 | { |
355 | int ret, cpu_offset = 0; |
320 | int ret, cpu_offset = 0; |
356 | 321 | ||
357 | while (length > 0) { |
322 | while (length > 0) { |
358 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
323 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
359 | int this_length = min(cacheline_end - gpu_offset, length); |
324 | int this_length = min(cacheline_end - gpu_offset, length); |
360 | int swizzled_gpu_offset = gpu_offset ^ 64; |
325 | int swizzled_gpu_offset = gpu_offset ^ 64; |
361 | 326 | ||
362 | ret = __copy_from_user(gpu_vaddr + swizzled_gpu_offset, |
327 | ret = __copy_from_user(gpu_vaddr + swizzled_gpu_offset, |
363 | cpu_vaddr + cpu_offset, |
328 | cpu_vaddr + cpu_offset, |
364 | this_length); |
329 | this_length); |
365 | if (ret) |
330 | if (ret) |
366 | return ret + length; |
331 | return ret + length; |
367 | 332 | ||
368 | cpu_offset += this_length; |
333 | cpu_offset += this_length; |
369 | gpu_offset += this_length; |
334 | gpu_offset += this_length; |
370 | length -= this_length; |
335 | length -= this_length; |
371 | } |
336 | } |
372 | 337 | ||
373 | return 0; |
338 | return 0; |
374 | } |
339 | } |
375 | 340 | ||
376 | /* Per-page copy function for the shmem pread fastpath. |
341 | /* Per-page copy function for the shmem pread fastpath. |
377 | * Flushes invalid cachelines before reading the target if |
342 | * Flushes invalid cachelines before reading the target if |
378 | * needs_clflush is set. */ |
343 | * needs_clflush is set. */ |
379 | static int |
344 | static int |
380 | shmem_pread_fast(struct page *page, int shmem_page_offset, int page_length, |
345 | shmem_pread_fast(struct page *page, int shmem_page_offset, int page_length, |
381 | char __user *user_data, |
346 | char __user *user_data, |
382 | bool page_do_bit17_swizzling, bool needs_clflush) |
347 | bool page_do_bit17_swizzling, bool needs_clflush) |
383 | { |
348 | { |
384 | char *vaddr; |
349 | char *vaddr; |
385 | int ret; |
350 | int ret; |
386 | 351 | ||
387 | if (unlikely(page_do_bit17_swizzling)) |
352 | if (unlikely(page_do_bit17_swizzling)) |
388 | return -EINVAL; |
353 | return -EINVAL; |
389 | 354 | ||
390 | vaddr = kmap_atomic(page); |
355 | vaddr = kmap_atomic(page); |
391 | if (needs_clflush) |
356 | if (needs_clflush) |
392 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
357 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
393 | page_length); |
358 | page_length); |
394 | ret = __copy_to_user_inatomic(user_data, |
359 | ret = __copy_to_user_inatomic(user_data, |
395 | vaddr + shmem_page_offset, |
360 | vaddr + shmem_page_offset, |
396 | page_length); |
361 | page_length); |
397 | kunmap_atomic(vaddr); |
362 | kunmap_atomic(vaddr); |
398 | 363 | ||
399 | return ret ? -EFAULT : 0; |
364 | return ret ? -EFAULT : 0; |
400 | } |
365 | } |
401 | 366 | ||
402 | static void |
367 | static void |
403 | shmem_clflush_swizzled_range(char *addr, unsigned long length, |
368 | shmem_clflush_swizzled_range(char *addr, unsigned long length, |
404 | bool swizzled) |
369 | bool swizzled) |
405 | { |
370 | { |
406 | if (unlikely(swizzled)) { |
371 | if (unlikely(swizzled)) { |
407 | unsigned long start = (unsigned long) addr; |
372 | unsigned long start = (unsigned long) addr; |
408 | unsigned long end = (unsigned long) addr + length; |
373 | unsigned long end = (unsigned long) addr + length; |
409 | 374 | ||
410 | /* For swizzling simply ensure that we always flush both |
375 | /* For swizzling simply ensure that we always flush both |
411 | * channels. Lame, but simple and it works. Swizzled |
376 | * channels. Lame, but simple and it works. Swizzled |
412 | * pwrite/pread is far from a hotpath - current userspace |
377 | * pwrite/pread is far from a hotpath - current userspace |
413 | * doesn't use it at all. */ |
378 | * doesn't use it at all. */ |
414 | start = round_down(start, 128); |
379 | start = round_down(start, 128); |
415 | end = round_up(end, 128); |
380 | end = round_up(end, 128); |
416 | 381 | ||
417 | drm_clflush_virt_range((void *)start, end - start); |
382 | drm_clflush_virt_range((void *)start, end - start); |
418 | } else { |
383 | } else { |
419 | drm_clflush_virt_range(addr, length); |
384 | drm_clflush_virt_range(addr, length); |
420 | } |
385 | } |
421 | 386 | ||
422 | } |
387 | } |
423 | 388 | ||
424 | /* Only difference to the fast-path function is that this can handle bit17 |
389 | /* Only difference to the fast-path function is that this can handle bit17 |
425 | * and uses non-atomic copy and kmap functions. */ |
390 | * and uses non-atomic copy and kmap functions. */ |
426 | static int |
391 | static int |
427 | shmem_pread_slow(struct page *page, int shmem_page_offset, int page_length, |
392 | shmem_pread_slow(struct page *page, int shmem_page_offset, int page_length, |
428 | char __user *user_data, |
393 | char __user *user_data, |
429 | bool page_do_bit17_swizzling, bool needs_clflush) |
394 | bool page_do_bit17_swizzling, bool needs_clflush) |
430 | { |
395 | { |
431 | char *vaddr; |
396 | char *vaddr; |
432 | int ret; |
397 | int ret; |
433 | 398 | ||
434 | vaddr = kmap(page); |
399 | vaddr = kmap(page); |
435 | if (needs_clflush) |
400 | if (needs_clflush) |
436 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
401 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
437 | page_length, |
402 | page_length, |
438 | page_do_bit17_swizzling); |
403 | page_do_bit17_swizzling); |
439 | 404 | ||
440 | if (page_do_bit17_swizzling) |
405 | if (page_do_bit17_swizzling) |
441 | ret = __copy_to_user_swizzled(user_data, |
406 | ret = __copy_to_user_swizzled(user_data, |
442 | vaddr, shmem_page_offset, |
407 | vaddr, shmem_page_offset, |
443 | page_length); |
408 | page_length); |
444 | else |
409 | else |
445 | ret = __copy_to_user(user_data, |
410 | ret = __copy_to_user(user_data, |
446 | vaddr + shmem_page_offset, |
411 | vaddr + shmem_page_offset, |
447 | page_length); |
412 | page_length); |
448 | kunmap(page); |
413 | kunmap(page); |
449 | 414 | ||
450 | return ret ? - EFAULT : 0; |
415 | return ret ? - EFAULT : 0; |
451 | } |
416 | } |
452 | 417 | ||
453 | static int |
418 | static int |
454 | i915_gem_shmem_pread(struct drm_device *dev, |
419 | i915_gem_shmem_pread(struct drm_device *dev, |
455 | struct drm_i915_gem_object *obj, |
420 | struct drm_i915_gem_object *obj, |
456 | struct drm_i915_gem_pread *args, |
421 | struct drm_i915_gem_pread *args, |
457 | struct drm_file *file) |
422 | struct drm_file *file) |
458 | { |
423 | { |
459 | char __user *user_data; |
424 | char __user *user_data; |
460 | ssize_t remain; |
425 | ssize_t remain; |
461 | loff_t offset; |
426 | loff_t offset; |
462 | int shmem_page_offset, page_length, ret = 0; |
427 | int shmem_page_offset, page_length, ret = 0; |
463 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
428 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
464 | int prefaulted = 0; |
429 | int prefaulted = 0; |
465 | int needs_clflush = 0; |
430 | int needs_clflush = 0; |
466 | struct sg_page_iter sg_iter; |
431 | struct sg_page_iter sg_iter; |
467 | 432 | ||
468 | user_data = to_user_ptr(args->data_ptr); |
433 | user_data = to_user_ptr(args->data_ptr); |
469 | remain = args->size; |
434 | remain = args->size; |
470 | 435 | ||
471 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
436 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
472 | 437 | ||
473 | ret = i915_gem_obj_prepare_shmem_read(obj, &needs_clflush); |
438 | ret = i915_gem_obj_prepare_shmem_read(obj, &needs_clflush); |
474 | if (ret) |
439 | if (ret) |
475 | return ret; |
440 | return ret; |
476 | 441 | ||
477 | offset = args->offset; |
442 | offset = args->offset; |
478 | 443 | ||
479 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
444 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
480 | offset >> PAGE_SHIFT) { |
445 | offset >> PAGE_SHIFT) { |
481 | struct page *page = sg_page_iter_page(&sg_iter); |
446 | struct page *page = sg_page_iter_page(&sg_iter); |
482 | 447 | ||
483 | if (remain <= 0) |
448 | if (remain <= 0) |
484 | break; |
449 | break; |
485 | 450 | ||
486 | /* Operation in this page |
451 | /* Operation in this page |
487 | * |
452 | * |
488 | * shmem_page_offset = offset within page in shmem file |
453 | * shmem_page_offset = offset within page in shmem file |
489 | * page_length = bytes to copy for this page |
454 | * page_length = bytes to copy for this page |
490 | */ |
455 | */ |
491 | shmem_page_offset = offset_in_page(offset); |
456 | shmem_page_offset = offset_in_page(offset); |
492 | page_length = remain; |
457 | page_length = remain; |
493 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
458 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
494 | page_length = PAGE_SIZE - shmem_page_offset; |
459 | page_length = PAGE_SIZE - shmem_page_offset; |
495 | 460 | ||
496 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
461 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
497 | (page_to_phys(page) & (1 << 17)) != 0; |
462 | (page_to_phys(page) & (1 << 17)) != 0; |
498 | 463 | ||
499 | ret = shmem_pread_fast(page, shmem_page_offset, page_length, |
464 | ret = shmem_pread_fast(page, shmem_page_offset, page_length, |
500 | user_data, page_do_bit17_swizzling, |
465 | user_data, page_do_bit17_swizzling, |
501 | needs_clflush); |
466 | needs_clflush); |
502 | if (ret == 0) |
467 | if (ret == 0) |
503 | goto next_page; |
468 | goto next_page; |
504 | 469 | ||
505 | mutex_unlock(&dev->struct_mutex); |
470 | mutex_unlock(&dev->struct_mutex); |
506 | 471 | ||
507 | if (likely(!i915.prefault_disable) && !prefaulted) { |
472 | if (likely(!i915.prefault_disable) && !prefaulted) { |
508 | ret = fault_in_multipages_writeable(user_data, remain); |
473 | ret = fault_in_multipages_writeable(user_data, remain); |
509 | /* Userspace is tricking us, but we've already clobbered |
474 | /* Userspace is tricking us, but we've already clobbered |
510 | * its pages with the prefault and promised to write the |
475 | * its pages with the prefault and promised to write the |
511 | * data up to the first fault. Hence ignore any errors |
476 | * data up to the first fault. Hence ignore any errors |
512 | * and just continue. */ |
477 | * and just continue. */ |
513 | (void)ret; |
478 | (void)ret; |
514 | prefaulted = 1; |
479 | prefaulted = 1; |
515 | } |
480 | } |
516 | 481 | ||
517 | ret = shmem_pread_slow(page, shmem_page_offset, page_length, |
482 | ret = shmem_pread_slow(page, shmem_page_offset, page_length, |
518 | user_data, page_do_bit17_swizzling, |
483 | user_data, page_do_bit17_swizzling, |
519 | needs_clflush); |
484 | needs_clflush); |
520 | 485 | ||
521 | mutex_lock(&dev->struct_mutex); |
486 | mutex_lock(&dev->struct_mutex); |
522 | 487 | ||
523 | if (ret) |
488 | if (ret) |
524 | goto out; |
489 | goto out; |
525 | 490 | ||
526 | next_page: |
491 | next_page: |
527 | remain -= page_length; |
492 | remain -= page_length; |
528 | user_data += page_length; |
493 | user_data += page_length; |
529 | offset += page_length; |
494 | offset += page_length; |
530 | } |
495 | } |
531 | 496 | ||
532 | out: |
497 | out: |
533 | i915_gem_object_unpin_pages(obj); |
498 | i915_gem_object_unpin_pages(obj); |
534 | 499 | ||
535 | return ret; |
500 | return ret; |
536 | } |
501 | } |
537 | 502 | ||
538 | /** |
503 | /** |
539 | * Reads data from the object referenced by handle. |
504 | * Reads data from the object referenced by handle. |
540 | * |
505 | * |
541 | * On error, the contents of *data are undefined. |
506 | * On error, the contents of *data are undefined. |
542 | */ |
507 | */ |
543 | int |
508 | int |
544 | i915_gem_pread_ioctl(struct drm_device *dev, void *data, |
509 | i915_gem_pread_ioctl(struct drm_device *dev, void *data, |
545 | struct drm_file *file) |
510 | struct drm_file *file) |
546 | { |
511 | { |
547 | struct drm_i915_gem_pread *args = data; |
512 | struct drm_i915_gem_pread *args = data; |
548 | struct drm_i915_gem_object *obj; |
513 | struct drm_i915_gem_object *obj; |
549 | int ret = 0; |
514 | int ret = 0; |
550 | 515 | ||
551 | if (args->size == 0) |
516 | if (args->size == 0) |
552 | return 0; |
517 | return 0; |
553 | 518 | ||
554 | if (!access_ok(VERIFY_WRITE, |
519 | if (!access_ok(VERIFY_WRITE, |
555 | to_user_ptr(args->data_ptr), |
520 | to_user_ptr(args->data_ptr), |
556 | args->size)) |
521 | args->size)) |
557 | return -EFAULT; |
522 | return -EFAULT; |
558 | 523 | ||
559 | ret = i915_mutex_lock_interruptible(dev); |
524 | ret = i915_mutex_lock_interruptible(dev); |
560 | if (ret) |
525 | if (ret) |
561 | return ret; |
526 | return ret; |
562 | 527 | ||
563 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
528 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
564 | if (&obj->base == NULL) { |
529 | if (&obj->base == NULL) { |
565 | ret = -ENOENT; |
530 | ret = -ENOENT; |
566 | goto unlock; |
531 | goto unlock; |
567 | } |
532 | } |
568 | 533 | ||
569 | /* Bounds check source. */ |
534 | /* Bounds check source. */ |
570 | if (args->offset > obj->base.size || |
535 | if (args->offset > obj->base.size || |
571 | args->size > obj->base.size - args->offset) { |
536 | args->size > obj->base.size - args->offset) { |
572 | ret = -EINVAL; |
537 | ret = -EINVAL; |
573 | goto out; |
538 | goto out; |
574 | } |
539 | } |
575 | 540 | ||
576 | /* prime objects have no backing filp to GEM pread/pwrite |
541 | /* prime objects have no backing filp to GEM pread/pwrite |
577 | * pages from. |
542 | * pages from. |
578 | */ |
543 | */ |
579 | if (!obj->base.filp) { |
544 | if (!obj->base.filp) { |
580 | ret = -EINVAL; |
545 | ret = -EINVAL; |
581 | goto out; |
546 | goto out; |
582 | } |
547 | } |
583 | 548 | ||
584 | trace_i915_gem_object_pread(obj, args->offset, args->size); |
549 | trace_i915_gem_object_pread(obj, args->offset, args->size); |
585 | 550 | ||
586 | ret = i915_gem_shmem_pread(dev, obj, args, file); |
551 | ret = i915_gem_shmem_pread(dev, obj, args, file); |
587 | 552 | ||
588 | out: |
553 | out: |
589 | drm_gem_object_unreference(&obj->base); |
554 | drm_gem_object_unreference(&obj->base); |
590 | unlock: |
555 | unlock: |
591 | mutex_unlock(&dev->struct_mutex); |
556 | mutex_unlock(&dev->struct_mutex); |
592 | return ret; |
557 | return ret; |
593 | } |
558 | } |
594 | 559 | ||
595 | /* This is the fast write path which cannot handle |
560 | /* This is the fast write path which cannot handle |
596 | * page faults in the source data |
561 | * page faults in the source data |
597 | */ |
562 | */ |
598 | 563 | ||
599 | static inline int |
564 | static inline int |
600 | fast_user_write(struct io_mapping *mapping, |
565 | fast_user_write(struct io_mapping *mapping, |
601 | loff_t page_base, int page_offset, |
566 | loff_t page_base, int page_offset, |
602 | char __user *user_data, |
567 | char __user *user_data, |
603 | int length) |
568 | int length) |
604 | { |
569 | { |
605 | void __iomem *vaddr_atomic; |
570 | void __iomem *vaddr_atomic; |
606 | void *vaddr; |
571 | void *vaddr; |
607 | unsigned long unwritten; |
572 | unsigned long unwritten; |
608 | 573 | ||
609 | vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base); |
574 | vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base); |
610 | /* We can use the cpu mem copy function because this is X86. */ |
575 | /* We can use the cpu mem copy function because this is X86. */ |
611 | vaddr = (void __force*)vaddr_atomic + page_offset; |
576 | vaddr = (void __force*)vaddr_atomic + page_offset; |
612 | unwritten = __copy_from_user_inatomic_nocache(vaddr, |
577 | unwritten = __copy_from_user_inatomic_nocache(vaddr, |
613 | user_data, length); |
578 | user_data, length); |
614 | io_mapping_unmap_atomic(vaddr_atomic); |
579 | io_mapping_unmap_atomic(vaddr_atomic); |
615 | return unwritten; |
580 | return unwritten; |
616 | } |
581 | } |
617 | #endif |
582 | #endif |
618 | 583 | ||
619 | #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) |
584 | #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) |
620 | /** |
585 | /** |
621 | * This is the fast pwrite path, where we copy the data directly from the |
586 | * This is the fast pwrite path, where we copy the data directly from the |
622 | * user into the GTT, uncached. |
587 | * user into the GTT, uncached. |
623 | */ |
588 | */ |
624 | static int |
589 | static int |
625 | i915_gem_gtt_pwrite_fast(struct drm_device *dev, |
590 | i915_gem_gtt_pwrite_fast(struct drm_device *dev, |
626 | struct drm_i915_gem_object *obj, |
591 | struct drm_i915_gem_object *obj, |
627 | struct drm_i915_gem_pwrite *args, |
592 | struct drm_i915_gem_pwrite *args, |
628 | struct drm_file *file) |
593 | struct drm_file *file) |
629 | { |
594 | { |
630 | struct drm_i915_private *dev_priv = dev->dev_private; |
595 | struct drm_i915_private *dev_priv = dev->dev_private; |
631 | ssize_t remain; |
596 | ssize_t remain; |
632 | loff_t offset, page_base; |
597 | loff_t offset, page_base; |
633 | char __user *user_data; |
598 | char __user *user_data; |
634 | int page_offset, page_length, ret; |
599 | int page_offset, page_length, ret; |
635 | 600 | ||
636 | ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_MAPPABLE | PIN_NONBLOCK); |
601 | ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_MAPPABLE | PIN_NONBLOCK); |
637 | if (ret) |
602 | if (ret) |
638 | goto out; |
603 | goto out; |
639 | 604 | ||
640 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
605 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
641 | if (ret) |
606 | if (ret) |
642 | goto out_unpin; |
607 | goto out_unpin; |
643 | 608 | ||
644 | ret = i915_gem_object_put_fence(obj); |
609 | ret = i915_gem_object_put_fence(obj); |
645 | if (ret) |
610 | if (ret) |
646 | goto out_unpin; |
611 | goto out_unpin; |
647 | 612 | ||
648 | user_data = to_user_ptr(args->data_ptr); |
613 | user_data = to_user_ptr(args->data_ptr); |
649 | remain = args->size; |
614 | remain = args->size; |
650 | 615 | ||
651 | offset = i915_gem_obj_ggtt_offset(obj) + args->offset; |
616 | offset = i915_gem_obj_ggtt_offset(obj) + args->offset; |
652 | 617 | ||
653 | while (remain > 0) { |
618 | while (remain > 0) { |
654 | /* Operation in this page |
619 | /* Operation in this page |
655 | * |
620 | * |
656 | * page_base = page offset within aperture |
621 | * page_base = page offset within aperture |
657 | * page_offset = offset within page |
622 | * page_offset = offset within page |
658 | * page_length = bytes to copy for this page |
623 | * page_length = bytes to copy for this page |
659 | */ |
624 | */ |
660 | page_base = offset & PAGE_MASK; |
625 | page_base = offset & PAGE_MASK; |
661 | page_offset = offset_in_page(offset); |
626 | page_offset = offset_in_page(offset); |
662 | page_length = remain; |
627 | page_length = remain; |
663 | if ((page_offset + remain) > PAGE_SIZE) |
628 | if ((page_offset + remain) > PAGE_SIZE) |
664 | page_length = PAGE_SIZE - page_offset; |
629 | page_length = PAGE_SIZE - page_offset; |
665 | 630 | ||
666 | MapPage(dev_priv->gtt.mappable, dev_priv->gtt.mappable_base+page_base, PG_SW); |
631 | MapPage(dev_priv->gtt.mappable, dev_priv->gtt.mappable_base+page_base, PG_SW); |
667 | 632 | ||
668 | memcpy((char*)dev_priv->gtt.mappable+page_offset, user_data, page_length); |
633 | memcpy((char*)dev_priv->gtt.mappable+page_offset, user_data, page_length); |
669 | 634 | ||
670 | remain -= page_length; |
635 | remain -= page_length; |
671 | user_data += page_length; |
636 | user_data += page_length; |
672 | offset += page_length; |
637 | offset += page_length; |
673 | } |
638 | } |
674 | 639 | ||
675 | out_unpin: |
640 | out_unpin: |
676 | i915_gem_object_ggtt_unpin(obj); |
641 | i915_gem_object_ggtt_unpin(obj); |
677 | out: |
642 | out: |
678 | return ret; |
643 | return ret; |
679 | } |
644 | } |
680 | 645 | ||
681 | /* Per-page copy function for the shmem pwrite fastpath. |
646 | /* Per-page copy function for the shmem pwrite fastpath. |
682 | * Flushes invalid cachelines before writing to the target if |
647 | * Flushes invalid cachelines before writing to the target if |
683 | * needs_clflush_before is set and flushes out any written cachelines after |
648 | * needs_clflush_before is set and flushes out any written cachelines after |
684 | * writing if needs_clflush is set. */ |
649 | * writing if needs_clflush is set. */ |
685 | static int |
650 | static int |
686 | shmem_pwrite_fast(struct page *page, int shmem_page_offset, int page_length, |
651 | shmem_pwrite_fast(struct page *page, int shmem_page_offset, int page_length, |
687 | char __user *user_data, |
652 | char __user *user_data, |
688 | bool page_do_bit17_swizzling, |
653 | bool page_do_bit17_swizzling, |
689 | bool needs_clflush_before, |
654 | bool needs_clflush_before, |
690 | bool needs_clflush_after) |
655 | bool needs_clflush_after) |
691 | { |
656 | { |
692 | char *vaddr; |
657 | char *vaddr; |
693 | int ret = 0; |
658 | int ret; |
694 | 659 | ||
695 | if (unlikely(page_do_bit17_swizzling)) |
660 | if (unlikely(page_do_bit17_swizzling)) |
696 | return -EINVAL; |
661 | return -EINVAL; |
697 | 662 | ||
698 | vaddr = (char *)MapIoMem((addr_t)page, 4096, PG_SW); |
663 | vaddr = kmap_atomic(page); |
699 | if (needs_clflush_before) |
664 | if (needs_clflush_before) |
700 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
665 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
701 | page_length); |
666 | page_length); |
702 | memcpy(vaddr + shmem_page_offset, |
667 | memcpy(vaddr + shmem_page_offset, |
703 | user_data, |
668 | user_data, |
704 | page_length); |
669 | page_length); |
705 | if (needs_clflush_after) |
670 | if (needs_clflush_after) |
706 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
671 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
707 | page_length); |
672 | page_length); |
708 | FreeKernelSpace(vaddr); |
673 | kunmap_atomic(vaddr); |
709 | 674 | ||
710 | return ret ? -EFAULT : 0; |
675 | return ret ? -EFAULT : 0; |
711 | } |
676 | } |
712 | #if 0 |
677 | #if 0 |
713 | 678 | ||
714 | /* Only difference to the fast-path function is that this can handle bit17 |
679 | /* Only difference to the fast-path function is that this can handle bit17 |
715 | * and uses non-atomic copy and kmap functions. */ |
680 | * and uses non-atomic copy and kmap functions. */ |
716 | static int |
681 | static int |
717 | shmem_pwrite_slow(struct page *page, int shmem_page_offset, int page_length, |
682 | shmem_pwrite_slow(struct page *page, int shmem_page_offset, int page_length, |
718 | char __user *user_data, |
683 | char __user *user_data, |
719 | bool page_do_bit17_swizzling, |
684 | bool page_do_bit17_swizzling, |
720 | bool needs_clflush_before, |
685 | bool needs_clflush_before, |
721 | bool needs_clflush_after) |
686 | bool needs_clflush_after) |
722 | { |
687 | { |
723 | char *vaddr; |
688 | char *vaddr; |
724 | int ret; |
689 | int ret; |
725 | 690 | ||
726 | vaddr = kmap(page); |
691 | vaddr = kmap(page); |
727 | if (unlikely(needs_clflush_before || page_do_bit17_swizzling)) |
692 | if (unlikely(needs_clflush_before || page_do_bit17_swizzling)) |
728 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
693 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
729 | page_length, |
694 | page_length, |
730 | page_do_bit17_swizzling); |
695 | page_do_bit17_swizzling); |
731 | if (page_do_bit17_swizzling) |
696 | if (page_do_bit17_swizzling) |
732 | ret = __copy_from_user_swizzled(vaddr, shmem_page_offset, |
697 | ret = __copy_from_user_swizzled(vaddr, shmem_page_offset, |
733 | user_data, |
698 | user_data, |
734 | page_length); |
699 | page_length); |
735 | else |
700 | else |
736 | ret = __copy_from_user(vaddr + shmem_page_offset, |
701 | ret = __copy_from_user(vaddr + shmem_page_offset, |
737 | user_data, |
702 | user_data, |
738 | page_length); |
703 | page_length); |
739 | if (needs_clflush_after) |
704 | if (needs_clflush_after) |
740 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
705 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
741 | page_length, |
706 | page_length, |
742 | page_do_bit17_swizzling); |
707 | page_do_bit17_swizzling); |
743 | kunmap(page); |
708 | kunmap(page); |
744 | 709 | ||
745 | return ret ? -EFAULT : 0; |
710 | return ret ? -EFAULT : 0; |
746 | } |
711 | } |
747 | #endif |
712 | #endif |
748 | 713 | ||
749 | 714 | ||
750 | static int |
715 | static int |
751 | i915_gem_shmem_pwrite(struct drm_device *dev, |
716 | i915_gem_shmem_pwrite(struct drm_device *dev, |
752 | struct drm_i915_gem_object *obj, |
717 | struct drm_i915_gem_object *obj, |
753 | struct drm_i915_gem_pwrite *args, |
718 | struct drm_i915_gem_pwrite *args, |
754 | struct drm_file *file) |
719 | struct drm_file *file) |
755 | { |
720 | { |
756 | ssize_t remain; |
721 | ssize_t remain; |
757 | loff_t offset; |
722 | loff_t offset; |
758 | char __user *user_data; |
723 | char __user *user_data; |
759 | int shmem_page_offset, page_length, ret = 0; |
724 | int shmem_page_offset, page_length, ret = 0; |
760 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
725 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
761 | int hit_slowpath = 0; |
726 | int hit_slowpath = 0; |
762 | int needs_clflush_after = 0; |
727 | int needs_clflush_after = 0; |
763 | int needs_clflush_before = 0; |
728 | int needs_clflush_before = 0; |
764 | struct sg_page_iter sg_iter; |
729 | struct sg_page_iter sg_iter; |
765 | 730 | ||
766 | user_data = to_user_ptr(args->data_ptr); |
731 | user_data = to_user_ptr(args->data_ptr); |
767 | remain = args->size; |
732 | remain = args->size; |
768 | 733 | ||
769 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
734 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
770 | 735 | ||
771 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
736 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
772 | /* If we're not in the cpu write domain, set ourself into the gtt |
737 | /* If we're not in the cpu write domain, set ourself into the gtt |
773 | * write domain and manually flush cachelines (if required). This |
738 | * write domain and manually flush cachelines (if required). This |
774 | * optimizes for the case when the gpu will use the data |
739 | * optimizes for the case when the gpu will use the data |
775 | * right away and we therefore have to clflush anyway. */ |
740 | * right away and we therefore have to clflush anyway. */ |
776 | needs_clflush_after = cpu_write_needs_clflush(obj); |
741 | needs_clflush_after = cpu_write_needs_clflush(obj); |
777 | ret = i915_gem_object_wait_rendering(obj, false); |
742 | ret = i915_gem_object_wait_rendering(obj, false); |
778 | if (ret) |
743 | if (ret) |
779 | return ret; |
744 | return ret; |
780 | 745 | ||
781 | i915_gem_object_retire(obj); |
746 | i915_gem_object_retire(obj); |
782 | } |
747 | } |
783 | /* Same trick applies to invalidate partially written cachelines read |
748 | /* Same trick applies to invalidate partially written cachelines read |
784 | * before writing. */ |
749 | * before writing. */ |
785 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) |
750 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) |
786 | needs_clflush_before = |
751 | needs_clflush_before = |
787 | !cpu_cache_is_coherent(dev, obj->cache_level); |
752 | !cpu_cache_is_coherent(dev, obj->cache_level); |
788 | 753 | ||
789 | ret = i915_gem_object_get_pages(obj); |
754 | ret = i915_gem_object_get_pages(obj); |
790 | if (ret) |
755 | if (ret) |
791 | return ret; |
756 | return ret; |
792 | 757 | ||
793 | i915_gem_object_pin_pages(obj); |
758 | i915_gem_object_pin_pages(obj); |
794 | 759 | ||
795 | offset = args->offset; |
760 | offset = args->offset; |
796 | obj->dirty = 1; |
761 | obj->dirty = 1; |
797 | 762 | ||
798 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
763 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
799 | offset >> PAGE_SHIFT) { |
764 | offset >> PAGE_SHIFT) { |
800 | struct page *page = sg_page_iter_page(&sg_iter); |
765 | struct page *page = sg_page_iter_page(&sg_iter); |
801 | int partial_cacheline_write; |
766 | int partial_cacheline_write; |
802 | 767 | ||
803 | if (remain <= 0) |
768 | if (remain <= 0) |
804 | break; |
769 | break; |
805 | 770 | ||
806 | /* Operation in this page |
771 | /* Operation in this page |
807 | * |
772 | * |
808 | * shmem_page_offset = offset within page in shmem file |
773 | * shmem_page_offset = offset within page in shmem file |
809 | * page_length = bytes to copy for this page |
774 | * page_length = bytes to copy for this page |
810 | */ |
775 | */ |
811 | shmem_page_offset = offset_in_page(offset); |
776 | shmem_page_offset = offset_in_page(offset); |
812 | 777 | ||
813 | page_length = remain; |
778 | page_length = remain; |
814 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
779 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
815 | page_length = PAGE_SIZE - shmem_page_offset; |
780 | page_length = PAGE_SIZE - shmem_page_offset; |
816 | 781 | ||
817 | /* If we don't overwrite a cacheline completely we need to be |
782 | /* If we don't overwrite a cacheline completely we need to be |
818 | * careful to have up-to-date data by first clflushing. Don't |
783 | * careful to have up-to-date data by first clflushing. Don't |
819 | * overcomplicate things and flush the entire patch. */ |
784 | * overcomplicate things and flush the entire patch. */ |
820 | partial_cacheline_write = needs_clflush_before && |
785 | partial_cacheline_write = needs_clflush_before && |
821 | ((shmem_page_offset | page_length) |
786 | ((shmem_page_offset | page_length) |
822 | & (x86_clflush_size - 1)); |
787 | & (x86_clflush_size - 1)); |
823 | 788 | ||
824 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
789 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
825 | (page_to_phys(page) & (1 << 17)) != 0; |
790 | (page_to_phys(page) & (1 << 17)) != 0; |
826 | 791 | ||
827 | ret = shmem_pwrite_fast(page, shmem_page_offset, page_length, |
792 | ret = shmem_pwrite_fast(page, shmem_page_offset, page_length, |
828 | user_data, page_do_bit17_swizzling, |
793 | user_data, page_do_bit17_swizzling, |
829 | partial_cacheline_write, |
794 | partial_cacheline_write, |
830 | needs_clflush_after); |
795 | needs_clflush_after); |
831 | if (ret == 0) |
796 | if (ret == 0) |
832 | goto next_page; |
797 | goto next_page; |
833 | 798 | ||
834 | hit_slowpath = 1; |
799 | hit_slowpath = 1; |
835 | mutex_unlock(&dev->struct_mutex); |
800 | mutex_unlock(&dev->struct_mutex); |
836 | dbgprintf("%s need shmem_pwrite_slow\n",__FUNCTION__); |
801 | dbgprintf("%s need shmem_pwrite_slow\n",__FUNCTION__); |
837 | 802 | ||
838 | // ret = shmem_pwrite_slow(page, shmem_page_offset, page_length, |
803 | // ret = shmem_pwrite_slow(page, shmem_page_offset, page_length, |
839 | // user_data, page_do_bit17_swizzling, |
804 | // user_data, page_do_bit17_swizzling, |
840 | // partial_cacheline_write, |
805 | // partial_cacheline_write, |
841 | // needs_clflush_after); |
806 | // needs_clflush_after); |
842 | 807 | ||
843 | mutex_lock(&dev->struct_mutex); |
808 | mutex_lock(&dev->struct_mutex); |
844 | - | ||
845 | next_page: |
- | |
846 | 809 | ||
847 | if (ret) |
810 | if (ret) |
848 | goto out; |
811 | goto out; |
- | 812 | ||
849 | 813 | next_page: |
|
850 | remain -= page_length; |
814 | remain -= page_length; |
851 | user_data += page_length; |
815 | user_data += page_length; |
852 | offset += page_length; |
816 | offset += page_length; |
853 | } |
817 | } |
854 | 818 | ||
855 | out: |
819 | out: |
856 | i915_gem_object_unpin_pages(obj); |
820 | i915_gem_object_unpin_pages(obj); |
857 | 821 | ||
858 | if (hit_slowpath) { |
822 | if (hit_slowpath) { |
859 | /* |
823 | /* |
860 | * Fixup: Flush cpu caches in case we didn't flush the dirty |
824 | * Fixup: Flush cpu caches in case we didn't flush the dirty |
861 | * cachelines in-line while writing and the object moved |
825 | * cachelines in-line while writing and the object moved |
862 | * out of the cpu write domain while we've dropped the lock. |
826 | * out of the cpu write domain while we've dropped the lock. |
863 | */ |
827 | */ |
864 | if (!needs_clflush_after && |
828 | if (!needs_clflush_after && |
865 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
829 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
866 | if (i915_gem_clflush_object(obj, obj->pin_display)) |
830 | if (i915_gem_clflush_object(obj, obj->pin_display)) |
867 | i915_gem_chipset_flush(dev); |
831 | i915_gem_chipset_flush(dev); |
868 | } |
832 | } |
869 | } |
833 | } |
870 | 834 | ||
871 | if (needs_clflush_after) |
835 | if (needs_clflush_after) |
872 | i915_gem_chipset_flush(dev); |
836 | i915_gem_chipset_flush(dev); |
873 | 837 | ||
874 | return ret; |
838 | return ret; |
875 | } |
839 | } |
876 | 840 | ||
877 | /** |
841 | /** |
878 | * Writes data to the object referenced by handle. |
842 | * Writes data to the object referenced by handle. |
879 | * |
843 | * |
880 | * On error, the contents of the buffer that were to be modified are undefined. |
844 | * On error, the contents of the buffer that were to be modified are undefined. |
881 | */ |
845 | */ |
882 | int |
846 | int |
883 | i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, |
847 | i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, |
884 | struct drm_file *file) |
848 | struct drm_file *file) |
885 | { |
849 | { |
886 | struct drm_i915_gem_pwrite *args = data; |
850 | struct drm_i915_gem_pwrite *args = data; |
887 | struct drm_i915_gem_object *obj; |
851 | struct drm_i915_gem_object *obj; |
888 | int ret; |
852 | int ret; |
889 | 853 | ||
890 | if (args->size == 0) |
854 | if (args->size == 0) |
891 | return 0; |
855 | return 0; |
892 | 856 | ||
893 | 857 | ||
894 | ret = i915_mutex_lock_interruptible(dev); |
858 | ret = i915_mutex_lock_interruptible(dev); |
895 | if (ret) |
859 | if (ret) |
896 | return ret; |
860 | return ret; |
897 | 861 | ||
898 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
862 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
899 | if (&obj->base == NULL) { |
863 | if (&obj->base == NULL) { |
900 | ret = -ENOENT; |
864 | ret = -ENOENT; |
901 | goto unlock; |
865 | goto unlock; |
902 | } |
866 | } |
903 | 867 | ||
904 | /* Bounds check destination. */ |
868 | /* Bounds check destination. */ |
905 | if (args->offset > obj->base.size || |
869 | if (args->offset > obj->base.size || |
906 | args->size > obj->base.size - args->offset) { |
870 | args->size > obj->base.size - args->offset) { |
907 | ret = -EINVAL; |
871 | ret = -EINVAL; |
908 | goto out; |
872 | goto out; |
909 | } |
873 | } |
910 | 874 | ||
911 | /* prime objects have no backing filp to GEM pread/pwrite |
875 | /* prime objects have no backing filp to GEM pread/pwrite |
912 | * pages from. |
876 | * pages from. |
913 | */ |
877 | */ |
914 | if (!obj->base.filp) { |
878 | if (!obj->base.filp) { |
915 | ret = -EINVAL; |
879 | ret = -EINVAL; |
916 | goto out; |
880 | goto out; |
917 | } |
881 | } |
918 | 882 | ||
919 | trace_i915_gem_object_pwrite(obj, args->offset, args->size); |
883 | trace_i915_gem_object_pwrite(obj, args->offset, args->size); |
920 | 884 | ||
921 | ret = -EFAULT; |
885 | ret = -EFAULT; |
922 | /* We can only do the GTT pwrite on untiled buffers, as otherwise |
886 | /* We can only do the GTT pwrite on untiled buffers, as otherwise |
923 | * it would end up going through the fenced access, and we'll get |
887 | * it would end up going through the fenced access, and we'll get |
924 | * different detiling behavior between reading and writing. |
888 | * different detiling behavior between reading and writing. |
925 | * pread/pwrite currently are reading and writing from the CPU |
889 | * pread/pwrite currently are reading and writing from the CPU |
926 | * perspective, requiring manual detiling by the client. |
890 | * perspective, requiring manual detiling by the client. |
927 | */ |
891 | */ |
928 | // if (obj->phys_obj) { |
- | |
929 | // ret = i915_gem_phys_pwrite(dev, obj, args, file); |
- | |
930 | // goto out; |
- | |
931 | // } |
- | |
932 | - | ||
933 | if (obj->tiling_mode == I915_TILING_NONE && |
892 | if (obj->tiling_mode == I915_TILING_NONE && |
934 | obj->base.write_domain != I915_GEM_DOMAIN_CPU && |
893 | obj->base.write_domain != I915_GEM_DOMAIN_CPU && |
935 | cpu_write_needs_clflush(obj)) { |
894 | cpu_write_needs_clflush(obj)) { |
936 | ret = i915_gem_gtt_pwrite_fast(dev, obj, args, file); |
895 | ret = i915_gem_gtt_pwrite_fast(dev, obj, args, file); |
937 | /* Note that the gtt paths might fail with non-page-backed user |
896 | /* Note that the gtt paths might fail with non-page-backed user |
938 | * pointers (e.g. gtt mappings when moving data between |
897 | * pointers (e.g. gtt mappings when moving data between |
939 | * textures). Fallback to the shmem path in that case. */ |
898 | * textures). Fallback to the shmem path in that case. */ |
940 | } |
899 | } |
941 | 900 | ||
942 | if (ret == -EFAULT || ret == -ENOSPC) |
901 | if (ret == -EFAULT || ret == -ENOSPC) |
943 | ret = i915_gem_shmem_pwrite(dev, obj, args, file); |
902 | ret = i915_gem_shmem_pwrite(dev, obj, args, file); |
944 | 903 | ||
945 | out: |
904 | out: |
946 | drm_gem_object_unreference(&obj->base); |
905 | drm_gem_object_unreference(&obj->base); |
947 | unlock: |
906 | unlock: |
948 | mutex_unlock(&dev->struct_mutex); |
907 | mutex_unlock(&dev->struct_mutex); |
949 | return ret; |
908 | return ret; |
950 | } |
909 | } |
951 | 910 | ||
952 | int |
911 | int |
953 | i915_gem_check_wedge(struct i915_gpu_error *error, |
912 | i915_gem_check_wedge(struct i915_gpu_error *error, |
954 | bool interruptible) |
913 | bool interruptible) |
955 | { |
914 | { |
956 | if (i915_reset_in_progress(error)) { |
915 | if (i915_reset_in_progress(error)) { |
957 | /* Non-interruptible callers can't handle -EAGAIN, hence return |
916 | /* Non-interruptible callers can't handle -EAGAIN, hence return |
958 | * -EIO unconditionally for these. */ |
917 | * -EIO unconditionally for these. */ |
959 | if (!interruptible) |
918 | if (!interruptible) |
960 | return -EIO; |
919 | return -EIO; |
961 | 920 | ||
962 | /* Recovery complete, but the reset failed ... */ |
921 | /* Recovery complete, but the reset failed ... */ |
963 | if (i915_terminally_wedged(error)) |
922 | if (i915_terminally_wedged(error)) |
964 | return -EIO; |
923 | return -EIO; |
965 | 924 | ||
966 | return -EAGAIN; |
925 | return -EAGAIN; |
967 | } |
926 | } |
968 | 927 | ||
969 | return 0; |
928 | return 0; |
970 | } |
929 | } |
971 | 930 | ||
972 | /* |
931 | /* |
973 | * Compare seqno against outstanding lazy request. Emit a request if they are |
932 | * Compare seqno against outstanding lazy request. Emit a request if they are |
974 | * equal. |
933 | * equal. |
975 | */ |
934 | */ |
976 | int |
935 | int |
977 | i915_gem_check_olr(struct intel_engine_cs *ring, u32 seqno) |
936 | i915_gem_check_olr(struct intel_engine_cs *ring, u32 seqno) |
978 | { |
937 | { |
979 | int ret; |
938 | int ret; |
980 | 939 | ||
981 | BUG_ON(!mutex_is_locked(&ring->dev->struct_mutex)); |
940 | BUG_ON(!mutex_is_locked(&ring->dev->struct_mutex)); |
982 | 941 | ||
983 | ret = 0; |
942 | ret = 0; |
984 | if (seqno == ring->outstanding_lazy_seqno) |
943 | if (seqno == ring->outstanding_lazy_seqno) |
985 | ret = i915_add_request(ring, NULL); |
944 | ret = i915_add_request(ring, NULL); |
986 | 945 | ||
987 | return ret; |
946 | return ret; |
988 | } |
947 | } |
989 | 948 | ||
990 | static void fake_irq(unsigned long data) |
949 | static void fake_irq(unsigned long data) |
991 | { |
950 | { |
992 | // wake_up_process((struct task_struct *)data); |
951 | // wake_up_process((struct task_struct *)data); |
993 | } |
952 | } |
994 | 953 | ||
995 | static bool missed_irq(struct drm_i915_private *dev_priv, |
954 | static bool missed_irq(struct drm_i915_private *dev_priv, |
996 | struct intel_engine_cs *ring) |
955 | struct intel_engine_cs *ring) |
997 | { |
956 | { |
998 | return test_bit(ring->id, &dev_priv->gpu_error.missed_irq_rings); |
957 | return test_bit(ring->id, &dev_priv->gpu_error.missed_irq_rings); |
999 | } |
958 | } |
1000 | 959 | ||
1001 | static bool can_wait_boost(struct drm_i915_file_private *file_priv) |
960 | static bool can_wait_boost(struct drm_i915_file_private *file_priv) |
1002 | { |
961 | { |
1003 | if (file_priv == NULL) |
962 | if (file_priv == NULL) |
1004 | return true; |
963 | return true; |
1005 | 964 | ||
1006 | return !atomic_xchg(&file_priv->rps_wait_boost, true); |
965 | return !atomic_xchg(&file_priv->rps_wait_boost, true); |
1007 | } |
966 | } |
1008 | 967 | ||
1009 | /** |
968 | /** |
1010 | * __wait_seqno - wait until execution of seqno has finished |
969 | * __i915_wait_seqno - wait until execution of seqno has finished |
1011 | * @ring: the ring expected to report seqno |
970 | * @ring: the ring expected to report seqno |
1012 | * @seqno: duh! |
971 | * @seqno: duh! |
1013 | * @reset_counter: reset sequence associated with the given seqno |
972 | * @reset_counter: reset sequence associated with the given seqno |
1014 | * @interruptible: do an interruptible wait (normally yes) |
973 | * @interruptible: do an interruptible wait (normally yes) |
1015 | * @timeout: in - how long to wait (NULL forever); out - how much time remaining |
974 | * @timeout: in - how long to wait (NULL forever); out - how much time remaining |
1016 | * |
975 | * |
1017 | * Note: It is of utmost importance that the passed in seqno and reset_counter |
976 | * Note: It is of utmost importance that the passed in seqno and reset_counter |
1018 | * values have been read by the caller in an smp safe manner. Where read-side |
977 | * values have been read by the caller in an smp safe manner. Where read-side |
1019 | * locks are involved, it is sufficient to read the reset_counter before |
978 | * locks are involved, it is sufficient to read the reset_counter before |
1020 | * unlocking the lock that protects the seqno. For lockless tricks, the |
979 | * unlocking the lock that protects the seqno. For lockless tricks, the |
1021 | * reset_counter _must_ be read before, and an appropriate smp_rmb must be |
980 | * reset_counter _must_ be read before, and an appropriate smp_rmb must be |
1022 | * inserted. |
981 | * inserted. |
1023 | * |
982 | * |
1024 | * Returns 0 if the seqno was found within the alloted time. Else returns the |
983 | * Returns 0 if the seqno was found within the alloted time. Else returns the |
1025 | * errno with remaining time filled in timeout argument. |
984 | * errno with remaining time filled in timeout argument. |
1026 | */ |
985 | */ |
1027 | static int __wait_seqno(struct intel_engine_cs *ring, u32 seqno, |
986 | int __i915_wait_seqno(struct intel_engine_cs *ring, u32 seqno, |
1028 | unsigned reset_counter, |
987 | unsigned reset_counter, |
1029 | bool interruptible, |
988 | bool interruptible, |
1030 | s64 *timeout, |
989 | s64 *timeout, |
1031 | struct drm_i915_file_private *file_priv) |
990 | struct drm_i915_file_private *file_priv) |
1032 | { |
991 | { |
1033 | struct drm_device *dev = ring->dev; |
992 | struct drm_device *dev = ring->dev; |
1034 | struct drm_i915_private *dev_priv = dev->dev_private; |
993 | struct drm_i915_private *dev_priv = dev->dev_private; |
1035 | const bool irq_test_in_progress = |
994 | const bool irq_test_in_progress = |
1036 | ACCESS_ONCE(dev_priv->gpu_error.test_irq_rings) & intel_ring_flag(ring); |
995 | ACCESS_ONCE(dev_priv->gpu_error.test_irq_rings) & intel_ring_flag(ring); |
1037 | unsigned long timeout_expire; |
996 | unsigned long timeout_expire; |
1038 | s64 before, now; |
997 | s64 before, now; |
1039 | 998 | ||
1040 | wait_queue_t __wait; |
999 | wait_queue_t __wait; |
1041 | int ret; |
1000 | int ret; |
1042 | 1001 | ||
1043 | WARN(!intel_irqs_enabled(dev_priv), "IRQs disabled"); |
1002 | WARN(!intel_irqs_enabled(dev_priv), "IRQs disabled"); |
1044 | 1003 | ||
1045 | if (i915_seqno_passed(ring->get_seqno(ring, true), seqno)) |
1004 | if (i915_seqno_passed(ring->get_seqno(ring, true), seqno)) |
1046 | return 0; |
1005 | return 0; |
- | 1006 | ||
1047 | 1007 | timeout_expire = timeout ? |
|
1048 | timeout_expire = timeout ? jiffies + nsecs_to_jiffies((u64)*timeout) : 0; |
1008 | jiffies + nsecs_to_jiffies_timeout((u64)*timeout) : 0; |
1049 | 1009 | ||
1050 | if (INTEL_INFO(dev)->gen >= 6 && ring->id == RCS && can_wait_boost(file_priv)) { |
1010 | if (INTEL_INFO(dev)->gen >= 6 && ring->id == RCS && can_wait_boost(file_priv)) { |
1051 | gen6_rps_boost(dev_priv); |
1011 | gen6_rps_boost(dev_priv); |
1052 | if (file_priv) |
1012 | if (file_priv) |
1053 | mod_delayed_work(dev_priv->wq, |
1013 | mod_delayed_work(dev_priv->wq, |
1054 | &file_priv->mm.idle_work, |
1014 | &file_priv->mm.idle_work, |
1055 | msecs_to_jiffies(100)); |
1015 | msecs_to_jiffies(100)); |
1056 | } |
1016 | } |
1057 | 1017 | ||
1058 | if (!irq_test_in_progress && WARN_ON(!ring->irq_get(ring))) |
1018 | if (!irq_test_in_progress && WARN_ON(!ring->irq_get(ring))) |
1059 | return -ENODEV; |
1019 | return -ENODEV; |
1060 | 1020 | ||
1061 | INIT_LIST_HEAD(&__wait.task_list); |
1021 | INIT_LIST_HEAD(&__wait.task_list); |
1062 | __wait.evnt = CreateEvent(NULL, MANUAL_DESTROY); |
1022 | __wait.evnt = CreateEvent(NULL, MANUAL_DESTROY); |
1063 | 1023 | ||
1064 | /* Record current time in case interrupted by signal, or wedged */ |
1024 | /* Record current time in case interrupted by signal, or wedged */ |
1065 | trace_i915_gem_request_wait_begin(ring, seqno); |
1025 | trace_i915_gem_request_wait_begin(ring, seqno); |
1066 | 1026 | ||
1067 | for (;;) { |
1027 | for (;;) { |
1068 | unsigned long flags; |
1028 | unsigned long flags; |
1069 | 1029 | ||
1070 | /* We need to check whether any gpu reset happened in between |
1030 | /* We need to check whether any gpu reset happened in between |
1071 | * the caller grabbing the seqno and now ... */ |
1031 | * the caller grabbing the seqno and now ... */ |
1072 | if (reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) { |
1032 | if (reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) { |
1073 | /* ... but upgrade the -EAGAIN to an -EIO if the gpu |
1033 | /* ... but upgrade the -EAGAIN to an -EIO if the gpu |
1074 | * is truely gone. */ |
1034 | * is truely gone. */ |
1075 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1035 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1076 | if (ret == 0) |
1036 | if (ret == 0) |
1077 | ret = -EAGAIN; |
1037 | ret = -EAGAIN; |
1078 | break; |
1038 | break; |
1079 | } |
1039 | } |
1080 | 1040 | ||
1081 | if (i915_seqno_passed(ring->get_seqno(ring, false), seqno)) { |
1041 | if (i915_seqno_passed(ring->get_seqno(ring, false), seqno)) { |
1082 | ret = 0; |
1042 | ret = 0; |
1083 | break; |
1043 | break; |
1084 | } |
1044 | } |
1085 | 1045 | ||
1086 | if (timeout && time_after_eq(jiffies, timeout_expire)) { |
1046 | if (timeout && time_after_eq(jiffies, timeout_expire)) { |
1087 | ret = -ETIME; |
1047 | ret = -ETIME; |
1088 | break; |
1048 | break; |
1089 | } |
1049 | } |
1090 | 1050 | ||
1091 | spin_lock_irqsave(&ring->irq_queue.lock, flags); |
1051 | spin_lock_irqsave(&ring->irq_queue.lock, flags); |
1092 | if (list_empty(&__wait.task_list)) |
1052 | if (list_empty(&__wait.task_list)) |
1093 | __add_wait_queue(&ring->irq_queue, &__wait); |
1053 | __add_wait_queue(&ring->irq_queue, &__wait); |
1094 | spin_unlock_irqrestore(&ring->irq_queue.lock, flags); |
1054 | spin_unlock_irqrestore(&ring->irq_queue.lock, flags); |
1095 | 1055 | ||
1096 | WaitEventTimeout(__wait.evnt, 1); |
1056 | WaitEventTimeout(__wait.evnt, 1); |
1097 | 1057 | ||
1098 | if (!list_empty(&__wait.task_list)) { |
1058 | if (!list_empty(&__wait.task_list)) { |
1099 | spin_lock_irqsave(&ring->irq_queue.lock, flags); |
1059 | spin_lock_irqsave(&ring->irq_queue.lock, flags); |
1100 | list_del_init(&__wait.task_list); |
1060 | list_del_init(&__wait.task_list); |
1101 | spin_unlock_irqrestore(&ring->irq_queue.lock, flags); |
1061 | spin_unlock_irqrestore(&ring->irq_queue.lock, flags); |
1102 | } |
1062 | } |
1103 | }; |
1063 | }; |
1104 | trace_i915_gem_request_wait_end(ring, seqno); |
1064 | trace_i915_gem_request_wait_end(ring, seqno); |
1105 | 1065 | ||
1106 | DestroyEvent(__wait.evnt); |
1066 | DestroyEvent(__wait.evnt); |
1107 | 1067 | ||
1108 | if (!irq_test_in_progress) |
1068 | if (!irq_test_in_progress) |
1109 | ring->irq_put(ring); |
1069 | ring->irq_put(ring); |
1110 | 1070 | ||
1111 | // finish_wait(&ring->irq_queue, &wait); |
1071 | // finish_wait(&ring->irq_queue, &wait); |
1112 | return ret; |
1072 | return ret; |
1113 | } |
1073 | } |
1114 | 1074 | ||
1115 | /** |
1075 | /** |
1116 | * Waits for a sequence number to be signaled, and cleans up the |
1076 | * Waits for a sequence number to be signaled, and cleans up the |
1117 | * request and object lists appropriately for that event. |
1077 | * request and object lists appropriately for that event. |
1118 | */ |
1078 | */ |
1119 | int |
1079 | int |
1120 | i915_wait_seqno(struct intel_engine_cs *ring, uint32_t seqno) |
1080 | i915_wait_seqno(struct intel_engine_cs *ring, uint32_t seqno) |
1121 | { |
1081 | { |
1122 | struct drm_device *dev = ring->dev; |
1082 | struct drm_device *dev = ring->dev; |
1123 | struct drm_i915_private *dev_priv = dev->dev_private; |
1083 | struct drm_i915_private *dev_priv = dev->dev_private; |
1124 | bool interruptible = dev_priv->mm.interruptible; |
1084 | bool interruptible = dev_priv->mm.interruptible; |
- | 1085 | unsigned reset_counter; |
|
1125 | int ret; |
1086 | int ret; |
1126 | 1087 | ||
1127 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1088 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1128 | BUG_ON(seqno == 0); |
1089 | BUG_ON(seqno == 0); |
1129 | 1090 | ||
1130 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1091 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1131 | if (ret) |
1092 | if (ret) |
1132 | return ret; |
1093 | return ret; |
1133 | 1094 | ||
1134 | ret = i915_gem_check_olr(ring, seqno); |
1095 | ret = i915_gem_check_olr(ring, seqno); |
1135 | if (ret) |
1096 | if (ret) |
1136 | return ret; |
1097 | return ret; |
1137 | 1098 | ||
1138 | return __wait_seqno(ring, seqno, |
1099 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
1139 | atomic_read(&dev_priv->gpu_error.reset_counter), |
1100 | return __i915_wait_seqno(ring, seqno, reset_counter, interruptible, |
1140 | interruptible, NULL, NULL); |
1101 | NULL, NULL); |
1141 | } |
1102 | } |
1142 | 1103 | ||
1143 | static int |
1104 | static int |
1144 | i915_gem_object_wait_rendering__tail(struct drm_i915_gem_object *obj, |
1105 | i915_gem_object_wait_rendering__tail(struct drm_i915_gem_object *obj) |
1145 | struct intel_engine_cs *ring) |
- | |
1146 | { |
1106 | { |
1147 | if (!obj->active) |
1107 | if (!obj->active) |
1148 | return 0; |
1108 | return 0; |
1149 | 1109 | ||
1150 | /* Manually manage the write flush as we may have not yet |
1110 | /* Manually manage the write flush as we may have not yet |
1151 | * retired the buffer. |
1111 | * retired the buffer. |
1152 | * |
1112 | * |
1153 | * Note that the last_write_seqno is always the earlier of |
1113 | * Note that the last_write_seqno is always the earlier of |
1154 | * the two (read/write) seqno, so if we haved successfully waited, |
1114 | * the two (read/write) seqno, so if we haved successfully waited, |
1155 | * we know we have passed the last write. |
1115 | * we know we have passed the last write. |
1156 | */ |
1116 | */ |
1157 | obj->last_write_seqno = 0; |
1117 | obj->last_write_seqno = 0; |
1158 | 1118 | ||
1159 | return 0; |
1119 | return 0; |
1160 | } |
1120 | } |
1161 | 1121 | ||
1162 | /** |
1122 | /** |
1163 | * Ensures that all rendering to the object has completed and the object is |
1123 | * Ensures that all rendering to the object has completed and the object is |
1164 | * safe to unbind from the GTT or access from the CPU. |
1124 | * safe to unbind from the GTT or access from the CPU. |
1165 | */ |
1125 | */ |
1166 | static __must_check int |
1126 | static __must_check int |
1167 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
1127 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
1168 | bool readonly) |
1128 | bool readonly) |
1169 | { |
1129 | { |
1170 | struct intel_engine_cs *ring = obj->ring; |
1130 | struct intel_engine_cs *ring = obj->ring; |
1171 | u32 seqno; |
1131 | u32 seqno; |
1172 | int ret; |
1132 | int ret; |
1173 | 1133 | ||
1174 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1134 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1175 | if (seqno == 0) |
1135 | if (seqno == 0) |
1176 | return 0; |
1136 | return 0; |
1177 | 1137 | ||
1178 | ret = i915_wait_seqno(ring, seqno); |
1138 | ret = i915_wait_seqno(ring, seqno); |
1179 | if (ret) |
1139 | if (ret) |
1180 | return ret; |
1140 | return ret; |
1181 | 1141 | ||
1182 | return i915_gem_object_wait_rendering__tail(obj, ring); |
1142 | return i915_gem_object_wait_rendering__tail(obj); |
1183 | } |
1143 | } |
1184 | 1144 | ||
1185 | /* A nonblocking variant of the above wait. This is a highly dangerous routine |
1145 | /* A nonblocking variant of the above wait. This is a highly dangerous routine |
1186 | * as the object state may change during this call. |
1146 | * as the object state may change during this call. |
1187 | */ |
1147 | */ |
1188 | static __must_check int |
1148 | static __must_check int |
1189 | i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj, |
1149 | i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj, |
1190 | struct drm_i915_file_private *file_priv, |
1150 | struct drm_i915_file_private *file_priv, |
1191 | bool readonly) |
1151 | bool readonly) |
1192 | { |
1152 | { |
1193 | struct drm_device *dev = obj->base.dev; |
1153 | struct drm_device *dev = obj->base.dev; |
1194 | struct drm_i915_private *dev_priv = dev->dev_private; |
1154 | struct drm_i915_private *dev_priv = dev->dev_private; |
1195 | struct intel_engine_cs *ring = obj->ring; |
1155 | struct intel_engine_cs *ring = obj->ring; |
1196 | unsigned reset_counter; |
1156 | unsigned reset_counter; |
1197 | u32 seqno; |
1157 | u32 seqno; |
1198 | int ret; |
1158 | int ret; |
1199 | 1159 | ||
1200 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1160 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1201 | BUG_ON(!dev_priv->mm.interruptible); |
1161 | BUG_ON(!dev_priv->mm.interruptible); |
1202 | 1162 | ||
1203 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1163 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1204 | if (seqno == 0) |
1164 | if (seqno == 0) |
1205 | return 0; |
1165 | return 0; |
1206 | 1166 | ||
1207 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, true); |
1167 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, true); |
1208 | if (ret) |
1168 | if (ret) |
1209 | return ret; |
1169 | return ret; |
1210 | 1170 | ||
1211 | ret = i915_gem_check_olr(ring, seqno); |
1171 | ret = i915_gem_check_olr(ring, seqno); |
1212 | if (ret) |
1172 | if (ret) |
1213 | return ret; |
1173 | return ret; |
1214 | 1174 | ||
1215 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
1175 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
1216 | mutex_unlock(&dev->struct_mutex); |
1176 | mutex_unlock(&dev->struct_mutex); |
1217 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL, file_priv); |
1177 | ret = __i915_wait_seqno(ring, seqno, reset_counter, true, NULL, |
- | 1178 | file_priv); |
|
1218 | mutex_lock(&dev->struct_mutex); |
1179 | mutex_lock(&dev->struct_mutex); |
1219 | if (ret) |
1180 | if (ret) |
1220 | return ret; |
1181 | return ret; |
1221 | 1182 | ||
1222 | return i915_gem_object_wait_rendering__tail(obj, ring); |
1183 | return i915_gem_object_wait_rendering__tail(obj); |
1223 | } |
1184 | } |
1224 | 1185 | ||
1225 | /** |
1186 | /** |
1226 | * Called when user space prepares to use an object with the CPU, either |
1187 | * Called when user space prepares to use an object with the CPU, either |
1227 | * through the mmap ioctl's mapping or a GTT mapping. |
1188 | * through the mmap ioctl's mapping or a GTT mapping. |
1228 | */ |
1189 | */ |
1229 | int |
1190 | int |
1230 | i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, |
1191 | i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, |
1231 | struct drm_file *file) |
1192 | struct drm_file *file) |
1232 | { |
1193 | { |
1233 | struct drm_i915_gem_set_domain *args = data; |
1194 | struct drm_i915_gem_set_domain *args = data; |
1234 | struct drm_i915_gem_object *obj; |
1195 | struct drm_i915_gem_object *obj; |
1235 | uint32_t read_domains = args->read_domains; |
1196 | uint32_t read_domains = args->read_domains; |
1236 | uint32_t write_domain = args->write_domain; |
1197 | uint32_t write_domain = args->write_domain; |
1237 | int ret; |
1198 | int ret; |
1238 | 1199 | ||
1239 | /* Only handle setting domains to types used by the CPU. */ |
1200 | /* Only handle setting domains to types used by the CPU. */ |
1240 | if (write_domain & I915_GEM_GPU_DOMAINS) |
1201 | if (write_domain & I915_GEM_GPU_DOMAINS) |
1241 | return -EINVAL; |
1202 | return -EINVAL; |
1242 | 1203 | ||
1243 | if (read_domains & I915_GEM_GPU_DOMAINS) |
1204 | if (read_domains & I915_GEM_GPU_DOMAINS) |
1244 | return -EINVAL; |
1205 | return -EINVAL; |
1245 | 1206 | ||
1246 | /* Having something in the write domain implies it's in the read |
1207 | /* Having something in the write domain implies it's in the read |
1247 | * domain, and only that read domain. Enforce that in the request. |
1208 | * domain, and only that read domain. Enforce that in the request. |
1248 | */ |
1209 | */ |
1249 | if (write_domain != 0 && read_domains != write_domain) |
1210 | if (write_domain != 0 && read_domains != write_domain) |
1250 | return -EINVAL; |
1211 | return -EINVAL; |
1251 | 1212 | ||
1252 | ret = i915_mutex_lock_interruptible(dev); |
1213 | ret = i915_mutex_lock_interruptible(dev); |
1253 | if (ret) |
1214 | if (ret) |
1254 | return ret; |
1215 | return ret; |
1255 | 1216 | ||
1256 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1217 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1257 | if (&obj->base == NULL) { |
1218 | if (&obj->base == NULL) { |
1258 | ret = -ENOENT; |
1219 | ret = -ENOENT; |
1259 | goto unlock; |
1220 | goto unlock; |
1260 | } |
1221 | } |
1261 | 1222 | ||
1262 | /* Try to flush the object off the GPU without holding the lock. |
1223 | /* Try to flush the object off the GPU without holding the lock. |
1263 | * We will repeat the flush holding the lock in the normal manner |
1224 | * We will repeat the flush holding the lock in the normal manner |
1264 | * to catch cases where we are gazumped. |
1225 | * to catch cases where we are gazumped. |
1265 | */ |
1226 | */ |
1266 | ret = i915_gem_object_wait_rendering__nonblocking(obj, |
1227 | ret = i915_gem_object_wait_rendering__nonblocking(obj, |
1267 | file->driver_priv, |
1228 | file->driver_priv, |
1268 | !write_domain); |
1229 | !write_domain); |
1269 | if (ret) |
1230 | if (ret) |
1270 | goto unref; |
1231 | goto unref; |
1271 | 1232 | ||
1272 | if (read_domains & I915_GEM_DOMAIN_GTT) { |
1233 | if (read_domains & I915_GEM_DOMAIN_GTT) { |
1273 | ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0); |
1234 | ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0); |
1274 | 1235 | ||
1275 | /* Silently promote "you're not bound, there was nothing to do" |
1236 | /* Silently promote "you're not bound, there was nothing to do" |
1276 | * to success, since the client was just asking us to |
1237 | * to success, since the client was just asking us to |
1277 | * make sure everything was done. |
1238 | * make sure everything was done. |
1278 | */ |
1239 | */ |
1279 | if (ret == -EINVAL) |
1240 | if (ret == -EINVAL) |
1280 | ret = 0; |
1241 | ret = 0; |
1281 | } else { |
1242 | } else { |
1282 | ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0); |
1243 | ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0); |
1283 | } |
1244 | } |
1284 | 1245 | ||
1285 | unref: |
1246 | unref: |
1286 | drm_gem_object_unreference(&obj->base); |
1247 | drm_gem_object_unreference(&obj->base); |
1287 | unlock: |
1248 | unlock: |
1288 | mutex_unlock(&dev->struct_mutex); |
1249 | mutex_unlock(&dev->struct_mutex); |
1289 | return ret; |
1250 | return ret; |
1290 | } |
1251 | } |
1291 | 1252 | ||
1292 | /** |
1253 | /** |
1293 | * Called when user space has done writes to this buffer |
1254 | * Called when user space has done writes to this buffer |
1294 | */ |
1255 | */ |
1295 | int |
1256 | int |
1296 | i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, |
1257 | i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, |
1297 | struct drm_file *file) |
1258 | struct drm_file *file) |
1298 | { |
1259 | { |
1299 | struct drm_i915_gem_sw_finish *args = data; |
1260 | struct drm_i915_gem_sw_finish *args = data; |
1300 | struct drm_i915_gem_object *obj; |
1261 | struct drm_i915_gem_object *obj; |
1301 | int ret = 0; |
1262 | int ret = 0; |
1302 | 1263 | ||
1303 | ret = i915_mutex_lock_interruptible(dev); |
1264 | ret = i915_mutex_lock_interruptible(dev); |
1304 | if (ret) |
1265 | if (ret) |
1305 | return ret; |
1266 | return ret; |
1306 | 1267 | ||
1307 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1268 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1308 | if (&obj->base == NULL) { |
1269 | if (&obj->base == NULL) { |
1309 | ret = -ENOENT; |
1270 | ret = -ENOENT; |
1310 | goto unlock; |
1271 | goto unlock; |
1311 | } |
1272 | } |
1312 | 1273 | ||
1313 | /* Pinned buffers may be scanout, so flush the cache */ |
1274 | /* Pinned buffers may be scanout, so flush the cache */ |
1314 | if (obj->pin_display) |
1275 | if (obj->pin_display) |
1315 | i915_gem_object_flush_cpu_write_domain(obj, true); |
1276 | i915_gem_object_flush_cpu_write_domain(obj, true); |
1316 | 1277 | ||
1317 | drm_gem_object_unreference(&obj->base); |
1278 | drm_gem_object_unreference(&obj->base); |
1318 | unlock: |
1279 | unlock: |
1319 | mutex_unlock(&dev->struct_mutex); |
1280 | mutex_unlock(&dev->struct_mutex); |
1320 | return ret; |
1281 | return ret; |
1321 | } |
1282 | } |
1322 | 1283 | ||
1323 | /** |
1284 | /** |
1324 | * Maps the contents of an object, returning the address it is mapped |
1285 | * Maps the contents of an object, returning the address it is mapped |
1325 | * into. |
1286 | * into. |
1326 | * |
1287 | * |
1327 | * While the mapping holds a reference on the contents of the object, it doesn't |
1288 | * While the mapping holds a reference on the contents of the object, it doesn't |
1328 | * imply a ref on the object itself. |
1289 | * imply a ref on the object itself. |
- | 1290 | * |
|
- | 1291 | * IMPORTANT: |
|
- | 1292 | * |
|
- | 1293 | * DRM driver writers who look a this function as an example for how to do GEM |
|
- | 1294 | * mmap support, please don't implement mmap support like here. The modern way |
|
- | 1295 | * to implement DRM mmap support is with an mmap offset ioctl (like |
|
- | 1296 | * i915_gem_mmap_gtt) and then using the mmap syscall on the DRM fd directly. |
|
- | 1297 | * That way debug tooling like valgrind will understand what's going on, hiding |
|
- | 1298 | * the mmap call in a driver private ioctl will break that. The i915 driver only |
|
- | 1299 | * does cpu mmaps this way because we didn't know better. |
|
1329 | */ |
1300 | */ |
1330 | int |
1301 | int |
1331 | i915_gem_mmap_ioctl(struct drm_device *dev, void *data, |
1302 | i915_gem_mmap_ioctl(struct drm_device *dev, void *data, |
1332 | struct drm_file *file) |
1303 | struct drm_file *file) |
1333 | { |
1304 | { |
1334 | struct drm_i915_gem_mmap *args = data; |
1305 | struct drm_i915_gem_mmap *args = data; |
1335 | struct drm_gem_object *obj; |
1306 | struct drm_gem_object *obj; |
1336 | unsigned long addr; |
1307 | unsigned long addr; |
1337 | 1308 | ||
1338 | obj = drm_gem_object_lookup(dev, file, args->handle); |
1309 | obj = drm_gem_object_lookup(dev, file, args->handle); |
1339 | if (obj == NULL) |
1310 | if (obj == NULL) |
1340 | return -ENOENT; |
1311 | return -ENOENT; |
1341 | 1312 | ||
1342 | /* prime objects have no backing filp to GEM mmap |
1313 | /* prime objects have no backing filp to GEM mmap |
1343 | * pages from. |
1314 | * pages from. |
1344 | */ |
1315 | */ |
1345 | if (!obj->filp) { |
1316 | if (!obj->filp) { |
1346 | drm_gem_object_unreference_unlocked(obj); |
1317 | drm_gem_object_unreference_unlocked(obj); |
1347 | return -EINVAL; |
1318 | return -EINVAL; |
1348 | } |
1319 | } |
1349 | 1320 | ||
1350 | addr = vm_mmap(obj->filp, 0, args->size, |
1321 | addr = vm_mmap(obj->filp, 0, args->size, |
1351 | PROT_READ | PROT_WRITE, MAP_SHARED, |
1322 | PROT_READ | PROT_WRITE, MAP_SHARED, |
1352 | args->offset); |
1323 | args->offset); |
1353 | drm_gem_object_unreference_unlocked(obj); |
1324 | drm_gem_object_unreference_unlocked(obj); |
1354 | if (IS_ERR((void *)addr)) |
1325 | if (IS_ERR((void *)addr)) |
1355 | return addr; |
1326 | return addr; |
1356 | 1327 | ||
1357 | args->addr_ptr = (uint64_t) addr; |
1328 | args->addr_ptr = (uint64_t) addr; |
1358 | 1329 | ||
1359 | return 0; |
1330 | return 0; |
1360 | } |
1331 | } |
1361 | 1332 | ||
1362 | 1333 | ||
1363 | 1334 | ||
1364 | 1335 | ||
1365 | 1336 | ||
1366 | 1337 | ||
1367 | 1338 | ||
1368 | 1339 | ||
1369 | 1340 | ||
1370 | 1341 | ||
1371 | 1342 | ||
1372 | 1343 | ||
1373 | 1344 | ||
1374 | /** |
1345 | /** |
1375 | * i915_gem_release_mmap - remove physical page mappings |
1346 | * i915_gem_release_mmap - remove physical page mappings |
1376 | * @obj: obj in question |
1347 | * @obj: obj in question |
1377 | * |
1348 | * |
1378 | * Preserve the reservation of the mmapping with the DRM core code, but |
1349 | * Preserve the reservation of the mmapping with the DRM core code, but |
1379 | * relinquish ownership of the pages back to the system. |
1350 | * relinquish ownership of the pages back to the system. |
1380 | * |
1351 | * |
1381 | * It is vital that we remove the page mapping if we have mapped a tiled |
1352 | * It is vital that we remove the page mapping if we have mapped a tiled |
1382 | * object through the GTT and then lose the fence register due to |
1353 | * object through the GTT and then lose the fence register due to |
1383 | * resource pressure. Similarly if the object has been moved out of the |
1354 | * resource pressure. Similarly if the object has been moved out of the |
1384 | * aperture, than pages mapped into userspace must be revoked. Removing the |
1355 | * aperture, than pages mapped into userspace must be revoked. Removing the |
1385 | * mapping will then trigger a page fault on the next user access, allowing |
1356 | * mapping will then trigger a page fault on the next user access, allowing |
1386 | * fixup by i915_gem_fault(). |
1357 | * fixup by i915_gem_fault(). |
1387 | */ |
1358 | */ |
1388 | void |
1359 | void |
1389 | i915_gem_release_mmap(struct drm_i915_gem_object *obj) |
1360 | i915_gem_release_mmap(struct drm_i915_gem_object *obj) |
1390 | { |
1361 | { |
1391 | if (!obj->fault_mappable) |
1362 | if (!obj->fault_mappable) |
1392 | return; |
1363 | return; |
1393 | 1364 | ||
1394 | // drm_vma_node_unmap(&obj->base.vma_node, obj->base.dev->dev_mapping); |
1365 | // drm_vma_node_unmap(&obj->base.vma_node, obj->base.dev->dev_mapping); |
1395 | obj->fault_mappable = false; |
1366 | obj->fault_mappable = false; |
1396 | } |
1367 | } |
1397 | 1368 | ||
1398 | uint32_t |
1369 | uint32_t |
1399 | i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode) |
1370 | i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode) |
1400 | { |
1371 | { |
1401 | uint32_t gtt_size; |
1372 | uint32_t gtt_size; |
1402 | 1373 | ||
1403 | if (INTEL_INFO(dev)->gen >= 4 || |
1374 | if (INTEL_INFO(dev)->gen >= 4 || |
1404 | tiling_mode == I915_TILING_NONE) |
1375 | tiling_mode == I915_TILING_NONE) |
1405 | return size; |
1376 | return size; |
1406 | 1377 | ||
1407 | /* Previous chips need a power-of-two fence region when tiling */ |
1378 | /* Previous chips need a power-of-two fence region when tiling */ |
1408 | if (INTEL_INFO(dev)->gen == 3) |
1379 | if (INTEL_INFO(dev)->gen == 3) |
1409 | gtt_size = 1024*1024; |
1380 | gtt_size = 1024*1024; |
1410 | else |
1381 | else |
1411 | gtt_size = 512*1024; |
1382 | gtt_size = 512*1024; |
1412 | 1383 | ||
1413 | while (gtt_size < size) |
1384 | while (gtt_size < size) |
1414 | gtt_size <<= 1; |
1385 | gtt_size <<= 1; |
1415 | 1386 | ||
1416 | return gtt_size; |
1387 | return gtt_size; |
1417 | } |
1388 | } |
1418 | 1389 | ||
1419 | /** |
1390 | /** |
1420 | * i915_gem_get_gtt_alignment - return required GTT alignment for an object |
1391 | * i915_gem_get_gtt_alignment - return required GTT alignment for an object |
1421 | * @obj: object to check |
1392 | * @obj: object to check |
1422 | * |
1393 | * |
1423 | * Return the required GTT alignment for an object, taking into account |
1394 | * Return the required GTT alignment for an object, taking into account |
1424 | * potential fence register mapping. |
1395 | * potential fence register mapping. |
1425 | */ |
1396 | */ |
1426 | uint32_t |
1397 | uint32_t |
1427 | i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, |
1398 | i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, |
1428 | int tiling_mode, bool fenced) |
1399 | int tiling_mode, bool fenced) |
1429 | { |
1400 | { |
1430 | /* |
1401 | /* |
1431 | * Minimum alignment is 4k (GTT page size), but might be greater |
1402 | * Minimum alignment is 4k (GTT page size), but might be greater |
1432 | * if a fence register is needed for the object. |
1403 | * if a fence register is needed for the object. |
1433 | */ |
1404 | */ |
1434 | if (INTEL_INFO(dev)->gen >= 4 || (!fenced && IS_G33(dev)) || |
1405 | if (INTEL_INFO(dev)->gen >= 4 || (!fenced && IS_G33(dev)) || |
1435 | tiling_mode == I915_TILING_NONE) |
1406 | tiling_mode == I915_TILING_NONE) |
1436 | return 4096; |
1407 | return 4096; |
1437 | 1408 | ||
1438 | /* |
1409 | /* |
1439 | * Previous chips need to be aligned to the size of the smallest |
1410 | * Previous chips need to be aligned to the size of the smallest |
1440 | * fence register that can contain the object. |
1411 | * fence register that can contain the object. |
1441 | */ |
1412 | */ |
1442 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1413 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1443 | } |
1414 | } |
1444 | 1415 | ||
1445 | 1416 | ||
1446 | 1417 | ||
1447 | int |
1418 | int |
1448 | i915_gem_mmap_gtt(struct drm_file *file, |
1419 | i915_gem_mmap_gtt(struct drm_file *file, |
1449 | struct drm_device *dev, |
1420 | struct drm_device *dev, |
1450 | uint32_t handle, |
1421 | uint32_t handle, |
1451 | uint64_t *offset) |
1422 | uint64_t *offset) |
1452 | { |
1423 | { |
1453 | struct drm_i915_private *dev_priv = dev->dev_private; |
1424 | struct drm_i915_private *dev_priv = dev->dev_private; |
1454 | struct drm_i915_gem_object *obj; |
1425 | struct drm_i915_gem_object *obj; |
1455 | unsigned long pfn; |
1426 | unsigned long pfn; |
1456 | char *mem, *ptr; |
1427 | char *mem, *ptr; |
1457 | int ret; |
1428 | int ret; |
1458 | 1429 | ||
1459 | ret = i915_mutex_lock_interruptible(dev); |
1430 | ret = i915_mutex_lock_interruptible(dev); |
1460 | if (ret) |
1431 | if (ret) |
1461 | return ret; |
1432 | return ret; |
1462 | 1433 | ||
1463 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
1434 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
1464 | if (&obj->base == NULL) { |
1435 | if (&obj->base == NULL) { |
1465 | ret = -ENOENT; |
1436 | ret = -ENOENT; |
1466 | goto unlock; |
1437 | goto unlock; |
1467 | } |
1438 | } |
1468 | 1439 | ||
1469 | if (obj->base.size > dev_priv->gtt.mappable_end) { |
1440 | if (obj->base.size > dev_priv->gtt.mappable_end) { |
1470 | ret = -E2BIG; |
1441 | ret = -E2BIG; |
1471 | goto out; |
1442 | goto out; |
1472 | } |
1443 | } |
1473 | 1444 | ||
1474 | if (obj->madv != I915_MADV_WILLNEED) { |
1445 | if (obj->madv != I915_MADV_WILLNEED) { |
1475 | DRM_DEBUG("Attempting to mmap a purgeable buffer\n"); |
1446 | DRM_DEBUG("Attempting to mmap a purgeable buffer\n"); |
1476 | ret = -EFAULT; |
1447 | ret = -EFAULT; |
1477 | goto out; |
1448 | goto out; |
1478 | } |
1449 | } |
1479 | /* Now bind it into the GTT if needed */ |
1450 | /* Now bind it into the GTT if needed */ |
1480 | ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_MAPPABLE | PIN_NONBLOCK); |
1451 | ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_MAPPABLE | PIN_NONBLOCK); |
1481 | if (ret) |
1452 | if (ret) |
1482 | goto out; |
1453 | goto out; |
1483 | 1454 | ||
1484 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
1455 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
1485 | if (ret) |
1456 | if (ret) |
1486 | goto unpin; |
1457 | goto unpin; |
1487 | 1458 | ||
1488 | ret = i915_gem_object_get_fence(obj); |
1459 | ret = i915_gem_object_get_fence(obj); |
1489 | if (ret) |
1460 | if (ret) |
1490 | goto unpin; |
1461 | goto unpin; |
1491 | 1462 | ||
1492 | obj->fault_mappable = true; |
1463 | obj->fault_mappable = true; |
1493 | 1464 | ||
1494 | pfn = dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj); |
1465 | pfn = dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj); |
1495 | 1466 | ||
1496 | /* Finally, remap it using the new GTT offset */ |
1467 | /* Finally, remap it using the new GTT offset */ |
1497 | 1468 | ||
1498 | mem = UserAlloc(obj->base.size); |
1469 | mem = UserAlloc(obj->base.size); |
1499 | if(unlikely(mem == NULL)) |
1470 | if(unlikely(mem == NULL)) |
1500 | { |
1471 | { |
1501 | ret = -ENOMEM; |
1472 | ret = -ENOMEM; |
1502 | goto unpin; |
1473 | goto unpin; |
1503 | } |
1474 | } |
1504 | 1475 | ||
1505 | for(ptr = mem; ptr < mem + obj->base.size; ptr+= 4096, pfn+= 4096) |
1476 | for(ptr = mem; ptr < mem + obj->base.size; ptr+= 4096, pfn+= 4096) |
1506 | MapPage(ptr, pfn, PG_SHARED|PG_UW); |
1477 | MapPage(ptr, pfn, PG_SHARED|PG_UW); |
1507 | 1478 | ||
1508 | unpin: |
1479 | unpin: |
1509 | i915_gem_object_unpin_pages(obj); |
1480 | i915_gem_object_unpin_pages(obj); |
1510 | 1481 | ||
1511 | 1482 | ||
1512 | *offset = mem; |
1483 | *offset = mem; |
1513 | 1484 | ||
1514 | out: |
1485 | out: |
1515 | drm_gem_object_unreference(&obj->base); |
1486 | drm_gem_object_unreference(&obj->base); |
1516 | unlock: |
1487 | unlock: |
1517 | mutex_unlock(&dev->struct_mutex); |
1488 | mutex_unlock(&dev->struct_mutex); |
1518 | return ret; |
1489 | return ret; |
1519 | } |
1490 | } |
1520 | 1491 | ||
1521 | /** |
1492 | /** |
1522 | * i915_gem_mmap_gtt_ioctl - prepare an object for GTT mmap'ing |
1493 | * i915_gem_mmap_gtt_ioctl - prepare an object for GTT mmap'ing |
1523 | * @dev: DRM device |
1494 | * @dev: DRM device |
1524 | * @data: GTT mapping ioctl data |
1495 | * @data: GTT mapping ioctl data |
1525 | * @file: GEM object info |
1496 | * @file: GEM object info |
1526 | * |
1497 | * |
1527 | * Simply returns the fake offset to userspace so it can mmap it. |
1498 | * Simply returns the fake offset to userspace so it can mmap it. |
1528 | * The mmap call will end up in drm_gem_mmap(), which will set things |
1499 | * The mmap call will end up in drm_gem_mmap(), which will set things |
1529 | * up so we can get faults in the handler above. |
1500 | * up so we can get faults in the handler above. |
1530 | * |
1501 | * |
1531 | * The fault handler will take care of binding the object into the GTT |
1502 | * The fault handler will take care of binding the object into the GTT |
1532 | * (since it may have been evicted to make room for something), allocating |
1503 | * (since it may have been evicted to make room for something), allocating |
1533 | * a fence register, and mapping the appropriate aperture address into |
1504 | * a fence register, and mapping the appropriate aperture address into |
1534 | * userspace. |
1505 | * userspace. |
1535 | */ |
1506 | */ |
1536 | int |
1507 | int |
1537 | i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, |
1508 | i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, |
1538 | struct drm_file *file) |
1509 | struct drm_file *file) |
1539 | { |
1510 | { |
1540 | struct drm_i915_gem_mmap_gtt *args = data; |
1511 | struct drm_i915_gem_mmap_gtt *args = data; |
1541 | 1512 | ||
1542 | return i915_gem_mmap_gtt(file, dev, args->handle, &args->offset); |
1513 | return i915_gem_mmap_gtt(file, dev, args->handle, &args->offset); |
1543 | } |
1514 | } |
1544 | 1515 | ||
1545 | static inline int |
1516 | static inline int |
1546 | i915_gem_object_is_purgeable(struct drm_i915_gem_object *obj) |
1517 | i915_gem_object_is_purgeable(struct drm_i915_gem_object *obj) |
1547 | { |
1518 | { |
1548 | return obj->madv == I915_MADV_DONTNEED; |
1519 | return obj->madv == I915_MADV_DONTNEED; |
1549 | } |
1520 | } |
1550 | 1521 | ||
1551 | /* Immediately discard the backing storage */ |
1522 | /* Immediately discard the backing storage */ |
1552 | static void |
1523 | static void |
1553 | i915_gem_object_truncate(struct drm_i915_gem_object *obj) |
1524 | i915_gem_object_truncate(struct drm_i915_gem_object *obj) |
1554 | { |
1525 | { |
1555 | // i915_gem_object_free_mmap_offset(obj); |
1526 | // i915_gem_object_free_mmap_offset(obj); |
1556 | 1527 | ||
1557 | if (obj->base.filp == NULL) |
1528 | if (obj->base.filp == NULL) |
1558 | return; |
1529 | return; |
1559 | 1530 | ||
1560 | /* Our goal here is to return as much of the memory as |
1531 | /* Our goal here is to return as much of the memory as |
1561 | * is possible back to the system as we are called from OOM. |
1532 | * is possible back to the system as we are called from OOM. |
1562 | * To do this we must instruct the shmfs to drop all of its |
1533 | * To do this we must instruct the shmfs to drop all of its |
1563 | * backing pages, *now*. |
1534 | * backing pages, *now*. |
1564 | */ |
1535 | */ |
1565 | // shmem_truncate_range(file_inode(obj->base.filp), 0, (loff_t)-1); |
1536 | // shmem_truncate_range(file_inode(obj->base.filp), 0, (loff_t)-1); |
1566 | obj->madv = __I915_MADV_PURGED; |
1537 | obj->madv = __I915_MADV_PURGED; |
1567 | } |
1538 | } |
1568 | 1539 | ||
1569 | /* Try to discard unwanted pages */ |
1540 | /* Try to discard unwanted pages */ |
1570 | static void |
1541 | static void |
1571 | i915_gem_object_invalidate(struct drm_i915_gem_object *obj) |
1542 | i915_gem_object_invalidate(struct drm_i915_gem_object *obj) |
1572 | { |
1543 | { |
1573 | struct address_space *mapping; |
1544 | struct address_space *mapping; |
1574 | 1545 | ||
1575 | switch (obj->madv) { |
1546 | switch (obj->madv) { |
1576 | case I915_MADV_DONTNEED: |
1547 | case I915_MADV_DONTNEED: |
1577 | i915_gem_object_truncate(obj); |
1548 | i915_gem_object_truncate(obj); |
1578 | case __I915_MADV_PURGED: |
1549 | case __I915_MADV_PURGED: |
1579 | return; |
1550 | return; |
1580 | } |
1551 | } |
1581 | 1552 | ||
1582 | if (obj->base.filp == NULL) |
1553 | if (obj->base.filp == NULL) |
1583 | return; |
1554 | return; |
1584 | 1555 | ||
1585 | } |
1556 | } |
1586 | 1557 | ||
1587 | static void |
1558 | static void |
1588 | i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj) |
1559 | i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj) |
1589 | { |
1560 | { |
1590 | struct sg_page_iter sg_iter; |
1561 | struct sg_page_iter sg_iter; |
1591 | int ret; |
1562 | int ret; |
1592 | 1563 | ||
1593 | BUG_ON(obj->madv == __I915_MADV_PURGED); |
1564 | BUG_ON(obj->madv == __I915_MADV_PURGED); |
1594 | 1565 | ||
1595 | ret = i915_gem_object_set_to_cpu_domain(obj, true); |
1566 | ret = i915_gem_object_set_to_cpu_domain(obj, true); |
1596 | if (ret) { |
1567 | if (ret) { |
1597 | /* In the event of a disaster, abandon all caches and |
1568 | /* In the event of a disaster, abandon all caches and |
1598 | * hope for the best. |
1569 | * hope for the best. |
1599 | */ |
1570 | */ |
1600 | WARN_ON(ret != -EIO); |
1571 | WARN_ON(ret != -EIO); |
1601 | i915_gem_clflush_object(obj, true); |
1572 | i915_gem_clflush_object(obj, true); |
1602 | obj->base.read_domains = obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
1573 | obj->base.read_domains = obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
1603 | } |
1574 | } |
1604 | 1575 | ||
1605 | if (obj->madv == I915_MADV_DONTNEED) |
1576 | if (obj->madv == I915_MADV_DONTNEED) |
1606 | obj->dirty = 0; |
1577 | obj->dirty = 0; |
1607 | 1578 | ||
1608 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) { |
1579 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) { |
1609 | struct page *page = sg_page_iter_page(&sg_iter); |
1580 | struct page *page = sg_page_iter_page(&sg_iter); |
1610 | 1581 | ||
1611 | page_cache_release(page); |
1582 | page_cache_release(page); |
1612 | } |
1583 | } |
1613 | obj->dirty = 0; |
1584 | obj->dirty = 0; |
1614 | 1585 | ||
1615 | sg_free_table(obj->pages); |
1586 | sg_free_table(obj->pages); |
1616 | kfree(obj->pages); |
1587 | kfree(obj->pages); |
1617 | } |
1588 | } |
1618 | 1589 | ||
1619 | int |
1590 | int |
1620 | i915_gem_object_put_pages(struct drm_i915_gem_object *obj) |
1591 | i915_gem_object_put_pages(struct drm_i915_gem_object *obj) |
1621 | { |
1592 | { |
1622 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1593 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1623 | 1594 | ||
1624 | if (obj->pages == NULL) |
1595 | if (obj->pages == NULL) |
1625 | return 0; |
1596 | return 0; |
1626 | 1597 | ||
1627 | if (obj->pages_pin_count) |
1598 | if (obj->pages_pin_count) |
1628 | return -EBUSY; |
1599 | return -EBUSY; |
1629 | 1600 | ||
1630 | BUG_ON(i915_gem_obj_bound_any(obj)); |
1601 | BUG_ON(i915_gem_obj_bound_any(obj)); |
1631 | 1602 | ||
1632 | /* ->put_pages might need to allocate memory for the bit17 swizzle |
1603 | /* ->put_pages might need to allocate memory for the bit17 swizzle |
1633 | * array, hence protect them from being reaped by removing them from gtt |
1604 | * array, hence protect them from being reaped by removing them from gtt |
1634 | * lists early. */ |
1605 | * lists early. */ |
1635 | list_del(&obj->global_list); |
1606 | list_del(&obj->global_list); |
1636 | 1607 | ||
1637 | ops->put_pages(obj); |
1608 | ops->put_pages(obj); |
1638 | obj->pages = NULL; |
1609 | obj->pages = NULL; |
1639 | 1610 | ||
1640 | i915_gem_object_invalidate(obj); |
1611 | i915_gem_object_invalidate(obj); |
1641 | 1612 | ||
1642 | return 0; |
1613 | return 0; |
1643 | } |
1614 | } |
1644 | 1615 | ||
1645 | 1616 | ||
1646 | 1617 | ||
1647 | 1618 | ||
1648 | 1619 | ||
1649 | 1620 | ||
1650 | 1621 | ||
1651 | 1622 | ||
1652 | static int |
1623 | static int |
1653 | i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj) |
1624 | i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj) |
1654 | { |
1625 | { |
1655 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1626 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1656 | int page_count, i; |
1627 | int page_count, i; |
1657 | struct sg_table *st; |
1628 | struct sg_table *st; |
1658 | struct scatterlist *sg; |
1629 | struct scatterlist *sg; |
1659 | struct sg_page_iter sg_iter; |
1630 | struct sg_page_iter sg_iter; |
1660 | struct page *page; |
1631 | struct page *page; |
1661 | unsigned long last_pfn = 0; /* suppress gcc warning */ |
1632 | unsigned long last_pfn = 0; /* suppress gcc warning */ |
1662 | gfp_t gfp; |
1633 | gfp_t gfp; |
1663 | 1634 | ||
1664 | /* Assert that the object is not currently in any GPU domain. As it |
1635 | /* Assert that the object is not currently in any GPU domain. As it |
1665 | * wasn't in the GTT, there shouldn't be any way it could have been in |
1636 | * wasn't in the GTT, there shouldn't be any way it could have been in |
1666 | * a GPU cache |
1637 | * a GPU cache |
1667 | */ |
1638 | */ |
1668 | BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS); |
1639 | BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS); |
1669 | BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS); |
1640 | BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS); |
1670 | 1641 | ||
1671 | st = kmalloc(sizeof(*st), GFP_KERNEL); |
1642 | st = kmalloc(sizeof(*st), GFP_KERNEL); |
1672 | if (st == NULL) |
1643 | if (st == NULL) |
1673 | return -ENOMEM; |
1644 | return -ENOMEM; |
1674 | 1645 | ||
1675 | page_count = obj->base.size / PAGE_SIZE; |
1646 | page_count = obj->base.size / PAGE_SIZE; |
1676 | if (sg_alloc_table(st, page_count, GFP_KERNEL)) { |
1647 | if (sg_alloc_table(st, page_count, GFP_KERNEL)) { |
1677 | kfree(st); |
1648 | kfree(st); |
1678 | FAIL(); |
1649 | FAIL(); |
1679 | return -ENOMEM; |
1650 | return -ENOMEM; |
1680 | } |
1651 | } |
1681 | 1652 | ||
1682 | /* Get the list of pages out of our struct file. They'll be pinned |
1653 | /* Get the list of pages out of our struct file. They'll be pinned |
1683 | * at this point until we release them. |
1654 | * at this point until we release them. |
1684 | * |
1655 | * |
1685 | * Fail silently without starting the shrinker |
1656 | * Fail silently without starting the shrinker |
1686 | */ |
1657 | */ |
1687 | sg = st->sgl; |
1658 | sg = st->sgl; |
1688 | st->nents = 0; |
1659 | st->nents = 0; |
1689 | for (i = 0; i < page_count; i++) { |
1660 | for (i = 0; i < page_count; i++) { |
1690 | page = shmem_read_mapping_page_gfp(obj->base.filp, i, gfp); |
1661 | page = shmem_read_mapping_page_gfp(obj->base.filp, i, gfp); |
1691 | if (IS_ERR(page)) { |
1662 | if (IS_ERR(page)) { |
1692 | dbgprintf("%s invalid page %p\n", __FUNCTION__, page); |
1663 | dbgprintf("%s invalid page %p\n", __FUNCTION__, page); |
1693 | goto err_pages; |
1664 | goto err_pages; |
1694 | 1665 | ||
1695 | } |
1666 | } |
- | 1667 | #ifdef CONFIG_SWIOTLB |
|
- | 1668 | if (swiotlb_nr_tbl()) { |
|
- | 1669 | st->nents++; |
|
- | 1670 | sg_set_page(sg, page, PAGE_SIZE, 0); |
|
- | 1671 | sg = sg_next(sg); |
|
- | 1672 | continue; |
|
1696 | 1673 | } |
|
- | 1674 | #endif |
|
1697 | if (!i || page_to_pfn(page) != last_pfn + 1) { |
1675 | if (!i || page_to_pfn(page) != last_pfn + 1) { |
1698 | if (i) |
1676 | if (i) |
1699 | sg = sg_next(sg); |
1677 | sg = sg_next(sg); |
1700 | st->nents++; |
1678 | st->nents++; |
1701 | sg_set_page(sg, page, PAGE_SIZE, 0); |
1679 | sg_set_page(sg, page, PAGE_SIZE, 0); |
1702 | } else { |
1680 | } else { |
1703 | sg->length += PAGE_SIZE; |
1681 | sg->length += PAGE_SIZE; |
1704 | } |
1682 | } |
1705 | last_pfn = page_to_pfn(page); |
1683 | last_pfn = page_to_pfn(page); |
1706 | } |
1684 | } |
- | 1685 | #ifdef CONFIG_SWIOTLB |
|
- | 1686 | if (!swiotlb_nr_tbl()) |
|
1707 | 1687 | #endif |
|
1708 | sg_mark_end(sg); |
1688 | sg_mark_end(sg); |
1709 | obj->pages = st; |
1689 | obj->pages = st; |
1710 | 1690 | ||
1711 | return 0; |
1691 | return 0; |
1712 | 1692 | ||
1713 | err_pages: |
1693 | err_pages: |
1714 | sg_mark_end(sg); |
1694 | sg_mark_end(sg); |
1715 | for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) |
1695 | for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) |
1716 | page_cache_release(sg_page_iter_page(&sg_iter)); |
1696 | page_cache_release(sg_page_iter_page(&sg_iter)); |
1717 | sg_free_table(st); |
1697 | sg_free_table(st); |
1718 | kfree(st); |
1698 | kfree(st); |
1719 | FAIL(); |
1699 | FAIL(); |
1720 | return PTR_ERR(page); |
1700 | return PTR_ERR(page); |
1721 | } |
1701 | } |
1722 | 1702 | ||
1723 | /* Ensure that the associated pages are gathered from the backing storage |
1703 | /* Ensure that the associated pages are gathered from the backing storage |
1724 | * and pinned into our object. i915_gem_object_get_pages() may be called |
1704 | * and pinned into our object. i915_gem_object_get_pages() may be called |
1725 | * multiple times before they are released by a single call to |
1705 | * multiple times before they are released by a single call to |
1726 | * i915_gem_object_put_pages() - once the pages are no longer referenced |
1706 | * i915_gem_object_put_pages() - once the pages are no longer referenced |
1727 | * either as a result of memory pressure (reaping pages under the shrinker) |
1707 | * either as a result of memory pressure (reaping pages under the shrinker) |
1728 | * or as the object is itself released. |
1708 | * or as the object is itself released. |
1729 | */ |
1709 | */ |
1730 | int |
1710 | int |
1731 | i915_gem_object_get_pages(struct drm_i915_gem_object *obj) |
1711 | i915_gem_object_get_pages(struct drm_i915_gem_object *obj) |
1732 | { |
1712 | { |
1733 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1713 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1734 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1714 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1735 | int ret; |
1715 | int ret; |
1736 | 1716 | ||
1737 | if (obj->pages) |
1717 | if (obj->pages) |
1738 | return 0; |
1718 | return 0; |
1739 | 1719 | ||
1740 | if (obj->madv != I915_MADV_WILLNEED) { |
1720 | if (obj->madv != I915_MADV_WILLNEED) { |
1741 | DRM_DEBUG("Attempting to obtain a purgeable object\n"); |
1721 | DRM_DEBUG("Attempting to obtain a purgeable object\n"); |
1742 | return -EFAULT; |
1722 | return -EFAULT; |
1743 | } |
1723 | } |
1744 | 1724 | ||
1745 | BUG_ON(obj->pages_pin_count); |
1725 | BUG_ON(obj->pages_pin_count); |
1746 | 1726 | ||
1747 | ret = ops->get_pages(obj); |
1727 | ret = ops->get_pages(obj); |
1748 | if (ret) |
1728 | if (ret) |
1749 | return ret; |
1729 | return ret; |
1750 | 1730 | ||
1751 | list_add_tail(&obj->global_list, &dev_priv->mm.unbound_list); |
1731 | list_add_tail(&obj->global_list, &dev_priv->mm.unbound_list); |
1752 | return 0; |
1732 | return 0; |
1753 | } |
1733 | } |
1754 | 1734 | ||
1755 | static void |
1735 | static void |
1756 | i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, |
1736 | i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, |
1757 | struct intel_engine_cs *ring) |
1737 | struct intel_engine_cs *ring) |
1758 | { |
1738 | { |
1759 | struct drm_device *dev = obj->base.dev; |
- | |
1760 | struct drm_i915_private *dev_priv = dev->dev_private; |
- | |
1761 | u32 seqno = intel_ring_get_seqno(ring); |
1739 | u32 seqno = intel_ring_get_seqno(ring); |
1762 | 1740 | ||
1763 | BUG_ON(ring == NULL); |
1741 | BUG_ON(ring == NULL); |
1764 | if (obj->ring != ring && obj->last_write_seqno) { |
1742 | if (obj->ring != ring && obj->last_write_seqno) { |
1765 | /* Keep the seqno relative to the current ring */ |
1743 | /* Keep the seqno relative to the current ring */ |
1766 | obj->last_write_seqno = seqno; |
1744 | obj->last_write_seqno = seqno; |
1767 | } |
1745 | } |
1768 | obj->ring = ring; |
1746 | obj->ring = ring; |
1769 | 1747 | ||
1770 | /* Add a reference if we're newly entering the active list. */ |
1748 | /* Add a reference if we're newly entering the active list. */ |
1771 | if (!obj->active) { |
1749 | if (!obj->active) { |
1772 | drm_gem_object_reference(&obj->base); |
1750 | drm_gem_object_reference(&obj->base); |
1773 | obj->active = 1; |
1751 | obj->active = 1; |
1774 | } |
1752 | } |
1775 | 1753 | ||
1776 | list_move_tail(&obj->ring_list, &ring->active_list); |
1754 | list_move_tail(&obj->ring_list, &ring->active_list); |
1777 | 1755 | ||
1778 | obj->last_read_seqno = seqno; |
1756 | obj->last_read_seqno = seqno; |
1779 | - | ||
1780 | if (obj->fenced_gpu_access) { |
- | |
1781 | obj->last_fenced_seqno = seqno; |
- | |
1782 | - | ||
1783 | /* Bump MRU to take account of the delayed flush */ |
- | |
1784 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
- | |
1785 | struct drm_i915_fence_reg *reg; |
- | |
1786 | - | ||
1787 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
- | |
1788 | list_move_tail(®->lru_list, |
- | |
1789 | &dev_priv->mm.fence_list); |
- | |
1790 | } |
- | |
1791 | } |
- | |
1792 | } |
1757 | } |
1793 | 1758 | ||
1794 | void i915_vma_move_to_active(struct i915_vma *vma, |
1759 | void i915_vma_move_to_active(struct i915_vma *vma, |
1795 | struct intel_engine_cs *ring) |
1760 | struct intel_engine_cs *ring) |
1796 | { |
1761 | { |
1797 | list_move_tail(&vma->mm_list, &vma->vm->active_list); |
1762 | list_move_tail(&vma->mm_list, &vma->vm->active_list); |
1798 | return i915_gem_object_move_to_active(vma->obj, ring); |
1763 | return i915_gem_object_move_to_active(vma->obj, ring); |
1799 | } |
1764 | } |
1800 | 1765 | ||
1801 | static void |
1766 | static void |
1802 | i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) |
1767 | i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) |
1803 | { |
1768 | { |
1804 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1769 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1805 | struct i915_address_space *vm; |
1770 | struct i915_address_space *vm; |
1806 | struct i915_vma *vma; |
1771 | struct i915_vma *vma; |
1807 | 1772 | ||
1808 | BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); |
1773 | BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); |
1809 | BUG_ON(!obj->active); |
1774 | BUG_ON(!obj->active); |
1810 | 1775 | ||
1811 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) { |
1776 | list_for_each_entry(vm, &dev_priv->vm_list, global_link) { |
1812 | vma = i915_gem_obj_to_vma(obj, vm); |
1777 | vma = i915_gem_obj_to_vma(obj, vm); |
1813 | if (vma && !list_empty(&vma->mm_list)) |
1778 | if (vma && !list_empty(&vma->mm_list)) |
1814 | list_move_tail(&vma->mm_list, &vm->inactive_list); |
1779 | list_move_tail(&vma->mm_list, &vm->inactive_list); |
1815 | } |
1780 | } |
- | 1781 | ||
- | 1782 | intel_fb_obj_flush(obj, true); |
|
1816 | 1783 | ||
1817 | list_del_init(&obj->ring_list); |
1784 | list_del_init(&obj->ring_list); |
1818 | obj->ring = NULL; |
1785 | obj->ring = NULL; |
1819 | 1786 | ||
1820 | obj->last_read_seqno = 0; |
1787 | obj->last_read_seqno = 0; |
1821 | obj->last_write_seqno = 0; |
1788 | obj->last_write_seqno = 0; |
1822 | obj->base.write_domain = 0; |
1789 | obj->base.write_domain = 0; |
1823 | 1790 | ||
1824 | obj->last_fenced_seqno = 0; |
1791 | obj->last_fenced_seqno = 0; |
1825 | obj->fenced_gpu_access = false; |
- | |
1826 | 1792 | ||
1827 | obj->active = 0; |
1793 | obj->active = 0; |
1828 | drm_gem_object_unreference(&obj->base); |
1794 | drm_gem_object_unreference(&obj->base); |
1829 | 1795 | ||
1830 | WARN_ON(i915_verify_lists(dev)); |
1796 | WARN_ON(i915_verify_lists(dev)); |
1831 | } |
1797 | } |
1832 | 1798 | ||
1833 | static void |
1799 | static void |
1834 | i915_gem_object_retire(struct drm_i915_gem_object *obj) |
1800 | i915_gem_object_retire(struct drm_i915_gem_object *obj) |
1835 | { |
1801 | { |
1836 | struct intel_engine_cs *ring = obj->ring; |
1802 | struct intel_engine_cs *ring = obj->ring; |
1837 | 1803 | ||
1838 | if (ring == NULL) |
1804 | if (ring == NULL) |
1839 | return; |
1805 | return; |
1840 | 1806 | ||
1841 | if (i915_seqno_passed(ring->get_seqno(ring, true), |
1807 | if (i915_seqno_passed(ring->get_seqno(ring, true), |
1842 | obj->last_read_seqno)) |
1808 | obj->last_read_seqno)) |
1843 | i915_gem_object_move_to_inactive(obj); |
1809 | i915_gem_object_move_to_inactive(obj); |
1844 | } |
1810 | } |
1845 | 1811 | ||
1846 | static int |
1812 | static int |
1847 | i915_gem_init_seqno(struct drm_device *dev, u32 seqno) |
1813 | i915_gem_init_seqno(struct drm_device *dev, u32 seqno) |
1848 | { |
1814 | { |
1849 | struct drm_i915_private *dev_priv = dev->dev_private; |
1815 | struct drm_i915_private *dev_priv = dev->dev_private; |
1850 | struct intel_engine_cs *ring; |
1816 | struct intel_engine_cs *ring; |
1851 | int ret, i, j; |
1817 | int ret, i, j; |
1852 | 1818 | ||
1853 | /* Carefully retire all requests without writing to the rings */ |
1819 | /* Carefully retire all requests without writing to the rings */ |
1854 | for_each_ring(ring, dev_priv, i) { |
1820 | for_each_ring(ring, dev_priv, i) { |
1855 | ret = intel_ring_idle(ring); |
1821 | ret = intel_ring_idle(ring); |
1856 | if (ret) |
1822 | if (ret) |
1857 | return ret; |
1823 | return ret; |
1858 | } |
1824 | } |
1859 | i915_gem_retire_requests(dev); |
1825 | i915_gem_retire_requests(dev); |
1860 | 1826 | ||
1861 | /* Finally reset hw state */ |
1827 | /* Finally reset hw state */ |
1862 | for_each_ring(ring, dev_priv, i) { |
1828 | for_each_ring(ring, dev_priv, i) { |
1863 | intel_ring_init_seqno(ring, seqno); |
1829 | intel_ring_init_seqno(ring, seqno); |
1864 | 1830 | ||
1865 | for (j = 0; j < ARRAY_SIZE(ring->semaphore.sync_seqno); j++) |
1831 | for (j = 0; j < ARRAY_SIZE(ring->semaphore.sync_seqno); j++) |
1866 | ring->semaphore.sync_seqno[j] = 0; |
1832 | ring->semaphore.sync_seqno[j] = 0; |
1867 | } |
1833 | } |
1868 | 1834 | ||
1869 | return 0; |
1835 | return 0; |
1870 | } |
1836 | } |
1871 | 1837 | ||
1872 | int i915_gem_set_seqno(struct drm_device *dev, u32 seqno) |
1838 | int i915_gem_set_seqno(struct drm_device *dev, u32 seqno) |
1873 | { |
1839 | { |
1874 | struct drm_i915_private *dev_priv = dev->dev_private; |
1840 | struct drm_i915_private *dev_priv = dev->dev_private; |
1875 | int ret; |
1841 | int ret; |
1876 | 1842 | ||
1877 | if (seqno == 0) |
1843 | if (seqno == 0) |
1878 | return -EINVAL; |
1844 | return -EINVAL; |
1879 | 1845 | ||
1880 | /* HWS page needs to be set less than what we |
1846 | /* HWS page needs to be set less than what we |
1881 | * will inject to ring |
1847 | * will inject to ring |
1882 | */ |
1848 | */ |
1883 | ret = i915_gem_init_seqno(dev, seqno - 1); |
1849 | ret = i915_gem_init_seqno(dev, seqno - 1); |
1884 | if (ret) |
1850 | if (ret) |
1885 | return ret; |
1851 | return ret; |
1886 | 1852 | ||
1887 | /* Carefully set the last_seqno value so that wrap |
1853 | /* Carefully set the last_seqno value so that wrap |
1888 | * detection still works |
1854 | * detection still works |
1889 | */ |
1855 | */ |
1890 | dev_priv->next_seqno = seqno; |
1856 | dev_priv->next_seqno = seqno; |
1891 | dev_priv->last_seqno = seqno - 1; |
1857 | dev_priv->last_seqno = seqno - 1; |
1892 | if (dev_priv->last_seqno == 0) |
1858 | if (dev_priv->last_seqno == 0) |
1893 | dev_priv->last_seqno--; |
1859 | dev_priv->last_seqno--; |
1894 | 1860 | ||
1895 | return 0; |
1861 | return 0; |
1896 | } |
1862 | } |
1897 | 1863 | ||
1898 | int |
1864 | int |
1899 | i915_gem_get_seqno(struct drm_device *dev, u32 *seqno) |
1865 | i915_gem_get_seqno(struct drm_device *dev, u32 *seqno) |
1900 | { |
1866 | { |
1901 | struct drm_i915_private *dev_priv = dev->dev_private; |
1867 | struct drm_i915_private *dev_priv = dev->dev_private; |
1902 | 1868 | ||
1903 | /* reserve 0 for non-seqno */ |
1869 | /* reserve 0 for non-seqno */ |
1904 | if (dev_priv->next_seqno == 0) { |
1870 | if (dev_priv->next_seqno == 0) { |
1905 | int ret = i915_gem_init_seqno(dev, 0); |
1871 | int ret = i915_gem_init_seqno(dev, 0); |
1906 | if (ret) |
1872 | if (ret) |
1907 | return ret; |
1873 | return ret; |
1908 | 1874 | ||
1909 | dev_priv->next_seqno = 1; |
1875 | dev_priv->next_seqno = 1; |
1910 | } |
1876 | } |
1911 | 1877 | ||
1912 | *seqno = dev_priv->last_seqno = dev_priv->next_seqno++; |
1878 | *seqno = dev_priv->last_seqno = dev_priv->next_seqno++; |
1913 | return 0; |
1879 | return 0; |
1914 | } |
1880 | } |
1915 | 1881 | ||
1916 | int __i915_add_request(struct intel_engine_cs *ring, |
1882 | int __i915_add_request(struct intel_engine_cs *ring, |
1917 | struct drm_file *file, |
1883 | struct drm_file *file, |
1918 | struct drm_i915_gem_object *obj, |
1884 | struct drm_i915_gem_object *obj, |
1919 | u32 *out_seqno) |
1885 | u32 *out_seqno) |
1920 | { |
1886 | { |
1921 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
1887 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
1922 | struct drm_i915_gem_request *request; |
1888 | struct drm_i915_gem_request *request; |
- | 1889 | struct intel_ringbuffer *ringbuf; |
|
1923 | u32 request_ring_position, request_start; |
1890 | u32 request_ring_position, request_start; |
1924 | int ret; |
1891 | int ret; |
- | 1892 | ||
- | 1893 | request = ring->preallocated_lazy_request; |
|
- | 1894 | if (WARN_ON(request == NULL)) |
|
- | 1895 | return -ENOMEM; |
|
- | 1896 | ||
- | 1897 | if (i915.enable_execlists) { |
|
- | 1898 | struct intel_context *ctx = request->ctx; |
|
- | 1899 | ringbuf = ctx->engine[ring->id].ringbuf; |
|
- | 1900 | } else |
|
- | 1901 | ringbuf = ring->buffer; |
|
1925 | 1902 | ||
1926 | request_start = intel_ring_get_tail(ring->buffer); |
1903 | request_start = intel_ring_get_tail(ringbuf); |
1927 | /* |
1904 | /* |
1928 | * Emit any outstanding flushes - execbuf can fail to emit the flush |
1905 | * Emit any outstanding flushes - execbuf can fail to emit the flush |
1929 | * after having emitted the batchbuffer command. Hence we need to fix |
1906 | * after having emitted the batchbuffer command. Hence we need to fix |
1930 | * things up similar to emitting the lazy request. The difference here |
1907 | * things up similar to emitting the lazy request. The difference here |
1931 | * is that the flush _must_ happen before the next request, no matter |
1908 | * is that the flush _must_ happen before the next request, no matter |
1932 | * what. |
1909 | * what. |
1933 | */ |
1910 | */ |
- | 1911 | if (i915.enable_execlists) { |
|
- | 1912 | ret = logical_ring_flush_all_caches(ringbuf); |
|
- | 1913 | if (ret) |
|
- | 1914 | return ret; |
|
- | 1915 | } else { |
|
1934 | ret = intel_ring_flush_all_caches(ring); |
1916 | ret = intel_ring_flush_all_caches(ring); |
1935 | if (ret) |
1917 | if (ret) |
1936 | return ret; |
1918 | return ret; |
1937 | 1919 | } |
|
1938 | request = ring->preallocated_lazy_request; |
- | |
1939 | if (WARN_ON(request == NULL)) |
- | |
1940 | return -ENOMEM; |
- | |
1941 | 1920 | ||
1942 | /* Record the position of the start of the request so that |
1921 | /* Record the position of the start of the request so that |
1943 | * should we detect the updated seqno part-way through the |
1922 | * should we detect the updated seqno part-way through the |
1944 | * GPU processing the request, we never over-estimate the |
1923 | * GPU processing the request, we never over-estimate the |
1945 | * position of the head. |
1924 | * position of the head. |
1946 | */ |
1925 | */ |
1947 | request_ring_position = intel_ring_get_tail(ring->buffer); |
1926 | request_ring_position = intel_ring_get_tail(ringbuf); |
- | 1927 | ||
- | 1928 | if (i915.enable_execlists) { |
|
- | 1929 | ret = ring->emit_request(ringbuf); |
|
- | 1930 | if (ret) |
|
- | 1931 | return ret; |
|
1948 | 1932 | } else { |
|
1949 | ret = ring->add_request(ring); |
1933 | ret = ring->add_request(ring); |
1950 | if (ret) |
1934 | if (ret) |
1951 | return ret; |
1935 | return ret; |
- | 1936 | } |
|
1952 | 1937 | ||
1953 | request->seqno = intel_ring_get_seqno(ring); |
1938 | request->seqno = intel_ring_get_seqno(ring); |
1954 | request->ring = ring; |
1939 | request->ring = ring; |
1955 | request->head = request_start; |
1940 | request->head = request_start; |
1956 | request->tail = request_ring_position; |
1941 | request->tail = request_ring_position; |
1957 | 1942 | ||
1958 | /* Whilst this request exists, batch_obj will be on the |
1943 | /* Whilst this request exists, batch_obj will be on the |
1959 | * active_list, and so will hold the active reference. Only when this |
1944 | * active_list, and so will hold the active reference. Only when this |
1960 | * request is retired will the the batch_obj be moved onto the |
1945 | * request is retired will the the batch_obj be moved onto the |
1961 | * inactive_list and lose its active reference. Hence we do not need |
1946 | * inactive_list and lose its active reference. Hence we do not need |
1962 | * to explicitly hold another reference here. |
1947 | * to explicitly hold another reference here. |
1963 | */ |
1948 | */ |
1964 | request->batch_obj = obj; |
1949 | request->batch_obj = obj; |
- | 1950 | ||
1965 | 1951 | if (!i915.enable_execlists) { |
|
1966 | /* Hold a reference to the current context so that we can inspect |
1952 | /* Hold a reference to the current context so that we can inspect |
1967 | * it later in case a hangcheck error event fires. |
1953 | * it later in case a hangcheck error event fires. |
1968 | */ |
1954 | */ |
1969 | request->ctx = ring->last_context; |
1955 | request->ctx = ring->last_context; |
1970 | if (request->ctx) |
1956 | if (request->ctx) |
1971 | i915_gem_context_reference(request->ctx); |
1957 | i915_gem_context_reference(request->ctx); |
- | 1958 | } |
|
1972 | 1959 | ||
1973 | request->emitted_jiffies = jiffies; |
1960 | request->emitted_jiffies = jiffies; |
1974 | list_add_tail(&request->list, &ring->request_list); |
1961 | list_add_tail(&request->list, &ring->request_list); |
1975 | request->file_priv = NULL; |
1962 | request->file_priv = NULL; |
1976 | 1963 | ||
1977 | if (file) { |
1964 | if (file) { |
1978 | struct drm_i915_file_private *file_priv = file->driver_priv; |
1965 | struct drm_i915_file_private *file_priv = file->driver_priv; |
1979 | 1966 | ||
1980 | spin_lock(&file_priv->mm.lock); |
1967 | spin_lock(&file_priv->mm.lock); |
1981 | request->file_priv = file_priv; |
1968 | request->file_priv = file_priv; |
1982 | list_add_tail(&request->client_list, |
1969 | list_add_tail(&request->client_list, |
1983 | &file_priv->mm.request_list); |
1970 | &file_priv->mm.request_list); |
1984 | spin_unlock(&file_priv->mm.lock); |
1971 | spin_unlock(&file_priv->mm.lock); |
1985 | } |
1972 | } |
1986 | 1973 | ||
1987 | trace_i915_gem_request_add(ring, request->seqno); |
1974 | trace_i915_gem_request_add(ring, request->seqno); |
1988 | ring->outstanding_lazy_seqno = 0; |
1975 | ring->outstanding_lazy_seqno = 0; |
1989 | ring->preallocated_lazy_request = NULL; |
1976 | ring->preallocated_lazy_request = NULL; |
1990 | - | ||
1991 | if (!dev_priv->ums.mm_suspended) { |
1977 | |
1992 | // i915_queue_hangcheck(ring->dev); |
1978 | // i915_queue_hangcheck(ring->dev); |
1993 | 1979 | ||
1994 | queue_delayed_work(dev_priv->wq, |
1980 | queue_delayed_work(dev_priv->wq, |
1995 | &dev_priv->mm.retire_work, |
1981 | &dev_priv->mm.retire_work, |
1996 | round_jiffies_up_relative(HZ)); |
1982 | round_jiffies_up_relative(HZ)); |
1997 | intel_mark_busy(dev_priv->dev); |
1983 | intel_mark_busy(dev_priv->dev); |
1998 | } |
- | |
1999 | 1984 | ||
2000 | if (out_seqno) |
1985 | if (out_seqno) |
2001 | *out_seqno = request->seqno; |
1986 | *out_seqno = request->seqno; |
2002 | return 0; |
1987 | return 0; |
2003 | } |
1988 | } |
2004 | 1989 | ||
2005 | static inline void |
1990 | static inline void |
2006 | i915_gem_request_remove_from_client(struct drm_i915_gem_request *request) |
1991 | i915_gem_request_remove_from_client(struct drm_i915_gem_request *request) |
2007 | { |
1992 | { |
2008 | struct drm_i915_file_private *file_priv = request->file_priv; |
1993 | struct drm_i915_file_private *file_priv = request->file_priv; |
2009 | 1994 | ||
2010 | if (!file_priv) |
1995 | if (!file_priv) |
2011 | return; |
1996 | return; |
2012 | 1997 | ||
2013 | spin_lock(&file_priv->mm.lock); |
1998 | spin_lock(&file_priv->mm.lock); |
2014 | list_del(&request->client_list); |
1999 | list_del(&request->client_list); |
2015 | request->file_priv = NULL; |
2000 | request->file_priv = NULL; |
2016 | spin_unlock(&file_priv->mm.lock); |
2001 | spin_unlock(&file_priv->mm.lock); |
2017 | } |
2002 | } |
2018 | 2003 | ||
2019 | static bool i915_context_is_banned(struct drm_i915_private *dev_priv, |
2004 | static bool i915_context_is_banned(struct drm_i915_private *dev_priv, |
2020 | const struct intel_context *ctx) |
2005 | const struct intel_context *ctx) |
2021 | { |
2006 | { |
2022 | unsigned long elapsed; |
2007 | unsigned long elapsed; |
2023 | 2008 | ||
2024 | elapsed = GetTimerTicks()/100 - ctx->hang_stats.guilty_ts; |
2009 | elapsed = GetTimerTicks()/100 - ctx->hang_stats.guilty_ts; |
2025 | 2010 | ||
2026 | if (ctx->hang_stats.banned) |
2011 | if (ctx->hang_stats.banned) |
2027 | return true; |
2012 | return true; |
2028 | 2013 | ||
2029 | if (elapsed <= DRM_I915_CTX_BAN_PERIOD) { |
2014 | if (elapsed <= DRM_I915_CTX_BAN_PERIOD) { |
2030 | if (!i915_gem_context_is_default(ctx)) { |
2015 | if (!i915_gem_context_is_default(ctx)) { |
2031 | DRM_DEBUG("context hanging too fast, banning!\n"); |
2016 | DRM_DEBUG("context hanging too fast, banning!\n"); |
2032 | return true; |
2017 | return true; |
2033 | } else if (i915_stop_ring_allow_ban(dev_priv)) { |
2018 | } else if (i915_stop_ring_allow_ban(dev_priv)) { |
2034 | if (i915_stop_ring_allow_warn(dev_priv)) |
2019 | if (i915_stop_ring_allow_warn(dev_priv)) |
2035 | DRM_ERROR("gpu hanging too fast, banning!\n"); |
2020 | DRM_ERROR("gpu hanging too fast, banning!\n"); |
2036 | return true; |
2021 | return true; |
2037 | } |
2022 | } |
2038 | } |
2023 | } |
2039 | 2024 | ||
2040 | return false; |
2025 | return false; |
2041 | } |
2026 | } |
2042 | 2027 | ||
2043 | static void i915_set_reset_status(struct drm_i915_private *dev_priv, |
2028 | static void i915_set_reset_status(struct drm_i915_private *dev_priv, |
2044 | struct intel_context *ctx, |
2029 | struct intel_context *ctx, |
2045 | const bool guilty) |
2030 | const bool guilty) |
2046 | { |
2031 | { |
2047 | struct i915_ctx_hang_stats *hs; |
2032 | struct i915_ctx_hang_stats *hs; |
2048 | 2033 | ||
2049 | if (WARN_ON(!ctx)) |
2034 | if (WARN_ON(!ctx)) |
2050 | return; |
2035 | return; |
2051 | 2036 | ||
2052 | hs = &ctx->hang_stats; |
2037 | hs = &ctx->hang_stats; |
2053 | 2038 | ||
2054 | if (guilty) { |
2039 | if (guilty) { |
2055 | hs->banned = i915_context_is_banned(dev_priv, ctx); |
2040 | hs->banned = i915_context_is_banned(dev_priv, ctx); |
2056 | hs->batch_active++; |
2041 | hs->batch_active++; |
2057 | hs->guilty_ts = GetTimerTicks()/100; |
2042 | hs->guilty_ts = GetTimerTicks()/100; |
2058 | } else { |
2043 | } else { |
2059 | hs->batch_pending++; |
2044 | hs->batch_pending++; |
2060 | } |
2045 | } |
2061 | } |
2046 | } |
2062 | 2047 | ||
2063 | static void i915_gem_free_request(struct drm_i915_gem_request *request) |
2048 | static void i915_gem_free_request(struct drm_i915_gem_request *request) |
2064 | { |
2049 | { |
- | 2050 | struct intel_context *ctx = request->ctx; |
|
- | 2051 | ||
2065 | list_del(&request->list); |
2052 | list_del(&request->list); |
2066 | i915_gem_request_remove_from_client(request); |
2053 | i915_gem_request_remove_from_client(request); |
2067 | 2054 | ||
- | 2055 | if (ctx) { |
|
2068 | if (request->ctx) |
2056 | if (i915.enable_execlists) { |
- | 2057 | struct intel_engine_cs *ring = request->ring; |
|
- | 2058 | ||
- | 2059 | if (ctx != ring->default_context) |
|
- | 2060 | intel_lr_context_unpin(ring, ctx); |
|
- | 2061 | } |
|
2069 | i915_gem_context_unreference(request->ctx); |
2062 | i915_gem_context_unreference(ctx); |
2070 | 2063 | } |
|
2071 | kfree(request); |
2064 | kfree(request); |
2072 | } |
2065 | } |
2073 | 2066 | ||
2074 | struct drm_i915_gem_request * |
2067 | struct drm_i915_gem_request * |
2075 | i915_gem_find_active_request(struct intel_engine_cs *ring) |
2068 | i915_gem_find_active_request(struct intel_engine_cs *ring) |
2076 | { |
2069 | { |
2077 | struct drm_i915_gem_request *request; |
2070 | struct drm_i915_gem_request *request; |
2078 | u32 completed_seqno; |
2071 | u32 completed_seqno; |
2079 | 2072 | ||
2080 | completed_seqno = ring->get_seqno(ring, false); |
2073 | completed_seqno = ring->get_seqno(ring, false); |
2081 | 2074 | ||
2082 | list_for_each_entry(request, &ring->request_list, list) { |
2075 | list_for_each_entry(request, &ring->request_list, list) { |
2083 | if (i915_seqno_passed(completed_seqno, request->seqno)) |
2076 | if (i915_seqno_passed(completed_seqno, request->seqno)) |
2084 | continue; |
2077 | continue; |
2085 | 2078 | ||
2086 | return request; |
2079 | return request; |
2087 | } |
2080 | } |
2088 | 2081 | ||
2089 | return NULL; |
2082 | return NULL; |
2090 | } |
2083 | } |
2091 | 2084 | ||
2092 | static void i915_gem_reset_ring_status(struct drm_i915_private *dev_priv, |
2085 | static void i915_gem_reset_ring_status(struct drm_i915_private *dev_priv, |
2093 | struct intel_engine_cs *ring) |
2086 | struct intel_engine_cs *ring) |
2094 | { |
2087 | { |
2095 | struct drm_i915_gem_request *request; |
2088 | struct drm_i915_gem_request *request; |
2096 | bool ring_hung; |
2089 | bool ring_hung; |
2097 | 2090 | ||
2098 | request = i915_gem_find_active_request(ring); |
2091 | request = i915_gem_find_active_request(ring); |
2099 | 2092 | ||
2100 | if (request == NULL) |
2093 | if (request == NULL) |
2101 | return; |
2094 | return; |
2102 | 2095 | ||
2103 | ring_hung = ring->hangcheck.score >= HANGCHECK_SCORE_RING_HUNG; |
2096 | ring_hung = ring->hangcheck.score >= HANGCHECK_SCORE_RING_HUNG; |
2104 | 2097 | ||
2105 | i915_set_reset_status(dev_priv, request->ctx, ring_hung); |
2098 | i915_set_reset_status(dev_priv, request->ctx, ring_hung); |
2106 | 2099 | ||
2107 | list_for_each_entry_continue(request, &ring->request_list, list) |
2100 | list_for_each_entry_continue(request, &ring->request_list, list) |
2108 | i915_set_reset_status(dev_priv, request->ctx, false); |
2101 | i915_set_reset_status(dev_priv, request->ctx, false); |
2109 | } |
2102 | } |
2110 | 2103 | ||
2111 | static void i915_gem_reset_ring_cleanup(struct drm_i915_private *dev_priv, |
2104 | static void i915_gem_reset_ring_cleanup(struct drm_i915_private *dev_priv, |
2112 | struct intel_engine_cs *ring) |
2105 | struct intel_engine_cs *ring) |
2113 | { |
2106 | { |
2114 | while (!list_empty(&ring->active_list)) { |
2107 | while (!list_empty(&ring->active_list)) { |
2115 | struct drm_i915_gem_object *obj; |
2108 | struct drm_i915_gem_object *obj; |
2116 | 2109 | ||
2117 | obj = list_first_entry(&ring->active_list, |
2110 | obj = list_first_entry(&ring->active_list, |
2118 | struct drm_i915_gem_object, |
2111 | struct drm_i915_gem_object, |
2119 | ring_list); |
2112 | ring_list); |
2120 | 2113 | ||
2121 | i915_gem_object_move_to_inactive(obj); |
2114 | i915_gem_object_move_to_inactive(obj); |
2122 | } |
2115 | } |
2123 | 2116 | ||
2124 | /* |
2117 | /* |
- | 2118 | * Clear the execlists queue up before freeing the requests, as those |
|
- | 2119 | * are the ones that keep the context and ringbuffer backing objects |
|
- | 2120 | * pinned in place. |
|
- | 2121 | */ |
|
- | 2122 | while (!list_empty(&ring->execlist_queue)) { |
|
- | 2123 | struct intel_ctx_submit_request *submit_req; |
|
- | 2124 | ||
- | 2125 | submit_req = list_first_entry(&ring->execlist_queue, |
|
- | 2126 | struct intel_ctx_submit_request, |
|
- | 2127 | execlist_link); |
|
- | 2128 | list_del(&submit_req->execlist_link); |
|
- | 2129 | intel_runtime_pm_put(dev_priv); |
|
- | 2130 | i915_gem_context_unreference(submit_req->ctx); |
|
- | 2131 | kfree(submit_req); |
|
- | 2132 | } |
|
- | 2133 | ||
- | 2134 | /* |
|
2125 | * We must free the requests after all the corresponding objects have |
2135 | * We must free the requests after all the corresponding objects have |
2126 | * been moved off active lists. Which is the same order as the normal |
2136 | * been moved off active lists. Which is the same order as the normal |
2127 | * retire_requests function does. This is important if object hold |
2137 | * retire_requests function does. This is important if object hold |
2128 | * implicit references on things like e.g. ppgtt address spaces through |
2138 | * implicit references on things like e.g. ppgtt address spaces through |
2129 | * the request. |
2139 | * the request. |
2130 | */ |
2140 | */ |
2131 | while (!list_empty(&ring->request_list)) { |
2141 | while (!list_empty(&ring->request_list)) { |
2132 | struct drm_i915_gem_request *request; |
2142 | struct drm_i915_gem_request *request; |
2133 | 2143 | ||
2134 | request = list_first_entry(&ring->request_list, |
2144 | request = list_first_entry(&ring->request_list, |
2135 | struct drm_i915_gem_request, |
2145 | struct drm_i915_gem_request, |
2136 | list); |
2146 | list); |
2137 | 2147 | ||
2138 | i915_gem_free_request(request); |
2148 | i915_gem_free_request(request); |
2139 | } |
2149 | } |
2140 | 2150 | ||
2141 | /* These may not have been flush before the reset, do so now */ |
2151 | /* These may not have been flush before the reset, do so now */ |
2142 | kfree(ring->preallocated_lazy_request); |
2152 | kfree(ring->preallocated_lazy_request); |
2143 | ring->preallocated_lazy_request = NULL; |
2153 | ring->preallocated_lazy_request = NULL; |
2144 | ring->outstanding_lazy_seqno = 0; |
2154 | ring->outstanding_lazy_seqno = 0; |
2145 | } |
2155 | } |
2146 | 2156 | ||
2147 | void i915_gem_restore_fences(struct drm_device *dev) |
2157 | void i915_gem_restore_fences(struct drm_device *dev) |
2148 | { |
2158 | { |
2149 | struct drm_i915_private *dev_priv = dev->dev_private; |
2159 | struct drm_i915_private *dev_priv = dev->dev_private; |
2150 | int i; |
2160 | int i; |
2151 | 2161 | ||
2152 | for (i = 0; i < dev_priv->num_fence_regs; i++) { |
2162 | for (i = 0; i < dev_priv->num_fence_regs; i++) { |
2153 | struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i]; |
2163 | struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i]; |
2154 | 2164 | ||
2155 | /* |
2165 | /* |
2156 | * Commit delayed tiling changes if we have an object still |
2166 | * Commit delayed tiling changes if we have an object still |
2157 | * attached to the fence, otherwise just clear the fence. |
2167 | * attached to the fence, otherwise just clear the fence. |
2158 | */ |
2168 | */ |
2159 | if (reg->obj) { |
2169 | if (reg->obj) { |
2160 | i915_gem_object_update_fence(reg->obj, reg, |
2170 | i915_gem_object_update_fence(reg->obj, reg, |
2161 | reg->obj->tiling_mode); |
2171 | reg->obj->tiling_mode); |
2162 | } else { |
2172 | } else { |
2163 | i915_gem_write_fence(dev, i, NULL); |
2173 | i915_gem_write_fence(dev, i, NULL); |
2164 | } |
2174 | } |
2165 | } |
2175 | } |
2166 | } |
2176 | } |
2167 | 2177 | ||
2168 | void i915_gem_reset(struct drm_device *dev) |
2178 | void i915_gem_reset(struct drm_device *dev) |
2169 | { |
2179 | { |
2170 | struct drm_i915_private *dev_priv = dev->dev_private; |
2180 | struct drm_i915_private *dev_priv = dev->dev_private; |
2171 | struct intel_engine_cs *ring; |
2181 | struct intel_engine_cs *ring; |
2172 | int i; |
2182 | int i; |
2173 | 2183 | ||
2174 | /* |
2184 | /* |
2175 | * Before we free the objects from the requests, we need to inspect |
2185 | * Before we free the objects from the requests, we need to inspect |
2176 | * them for finding the guilty party. As the requests only borrow |
2186 | * them for finding the guilty party. As the requests only borrow |
2177 | * their reference to the objects, the inspection must be done first. |
2187 | * their reference to the objects, the inspection must be done first. |
2178 | */ |
2188 | */ |
2179 | for_each_ring(ring, dev_priv, i) |
2189 | for_each_ring(ring, dev_priv, i) |
2180 | i915_gem_reset_ring_status(dev_priv, ring); |
2190 | i915_gem_reset_ring_status(dev_priv, ring); |
2181 | 2191 | ||
2182 | for_each_ring(ring, dev_priv, i) |
2192 | for_each_ring(ring, dev_priv, i) |
2183 | i915_gem_reset_ring_cleanup(dev_priv, ring); |
2193 | i915_gem_reset_ring_cleanup(dev_priv, ring); |
2184 | 2194 | ||
2185 | i915_gem_context_reset(dev); |
2195 | i915_gem_context_reset(dev); |
2186 | 2196 | ||
2187 | i915_gem_restore_fences(dev); |
2197 | i915_gem_restore_fences(dev); |
2188 | } |
2198 | } |
2189 | 2199 | ||
2190 | /** |
2200 | /** |
2191 | * This function clears the request list as sequence numbers are passed. |
2201 | * This function clears the request list as sequence numbers are passed. |
2192 | */ |
2202 | */ |
2193 | void |
2203 | void |
2194 | i915_gem_retire_requests_ring(struct intel_engine_cs *ring) |
2204 | i915_gem_retire_requests_ring(struct intel_engine_cs *ring) |
2195 | { |
2205 | { |
2196 | uint32_t seqno; |
2206 | uint32_t seqno; |
2197 | 2207 | ||
2198 | if (list_empty(&ring->request_list)) |
2208 | if (list_empty(&ring->request_list)) |
2199 | return; |
2209 | return; |
2200 | 2210 | ||
2201 | WARN_ON(i915_verify_lists(ring->dev)); |
2211 | WARN_ON(i915_verify_lists(ring->dev)); |
2202 | 2212 | ||
2203 | seqno = ring->get_seqno(ring, true); |
2213 | seqno = ring->get_seqno(ring, true); |
2204 | 2214 | ||
2205 | /* Move any buffers on the active list that are no longer referenced |
2215 | /* Move any buffers on the active list that are no longer referenced |
2206 | * by the ringbuffer to the flushing/inactive lists as appropriate, |
2216 | * by the ringbuffer to the flushing/inactive lists as appropriate, |
2207 | * before we free the context associated with the requests. |
2217 | * before we free the context associated with the requests. |
2208 | */ |
2218 | */ |
2209 | while (!list_empty(&ring->active_list)) { |
2219 | while (!list_empty(&ring->active_list)) { |
2210 | struct drm_i915_gem_object *obj; |
2220 | struct drm_i915_gem_object *obj; |
2211 | 2221 | ||
2212 | obj = list_first_entry(&ring->active_list, |
2222 | obj = list_first_entry(&ring->active_list, |
2213 | struct drm_i915_gem_object, |
2223 | struct drm_i915_gem_object, |
2214 | ring_list); |
2224 | ring_list); |
2215 | 2225 | ||
2216 | if (!i915_seqno_passed(seqno, obj->last_read_seqno)) |
2226 | if (!i915_seqno_passed(seqno, obj->last_read_seqno)) |
2217 | break; |
2227 | break; |
2218 | 2228 | ||
2219 | i915_gem_object_move_to_inactive(obj); |
2229 | i915_gem_object_move_to_inactive(obj); |
2220 | } |
2230 | } |
2221 | 2231 | ||
2222 | 2232 | ||
2223 | while (!list_empty(&ring->request_list)) { |
2233 | while (!list_empty(&ring->request_list)) { |
2224 | struct drm_i915_gem_request *request; |
2234 | struct drm_i915_gem_request *request; |
- | 2235 | struct intel_ringbuffer *ringbuf; |
|
2225 | 2236 | ||
2226 | request = list_first_entry(&ring->request_list, |
2237 | request = list_first_entry(&ring->request_list, |
2227 | struct drm_i915_gem_request, |
2238 | struct drm_i915_gem_request, |
2228 | list); |
2239 | list); |
2229 | 2240 | ||
2230 | if (!i915_seqno_passed(seqno, request->seqno)) |
2241 | if (!i915_seqno_passed(seqno, request->seqno)) |
2231 | break; |
2242 | break; |
2232 | 2243 | ||
2233 | trace_i915_gem_request_retire(ring, request->seqno); |
2244 | trace_i915_gem_request_retire(ring, request->seqno); |
- | 2245 | ||
- | 2246 | /* This is one of the few common intersection points |
|
- | 2247 | * between legacy ringbuffer submission and execlists: |
|
- | 2248 | * we need to tell them apart in order to find the correct |
|
- | 2249 | * ringbuffer to which the request belongs to. |
|
- | 2250 | */ |
|
- | 2251 | if (i915.enable_execlists) { |
|
- | 2252 | struct intel_context *ctx = request->ctx; |
|
- | 2253 | ringbuf = ctx->engine[ring->id].ringbuf; |
|
- | 2254 | } else |
|
- | 2255 | ringbuf = ring->buffer; |
|
- | 2256 | ||
2234 | /* We know the GPU must have read the request to have |
2257 | /* We know the GPU must have read the request to have |
2235 | * sent us the seqno + interrupt, so use the position |
2258 | * sent us the seqno + interrupt, so use the position |
2236 | * of tail of the request to update the last known position |
2259 | * of tail of the request to update the last known position |
2237 | * of the GPU head. |
2260 | * of the GPU head. |
2238 | */ |
2261 | */ |
2239 | ring->buffer->last_retired_head = request->tail; |
2262 | ringbuf->last_retired_head = request->tail; |
2240 | 2263 | ||
2241 | i915_gem_free_request(request); |
2264 | i915_gem_free_request(request); |
2242 | } |
2265 | } |
2243 | 2266 | ||
2244 | if (unlikely(ring->trace_irq_seqno && |
2267 | if (unlikely(ring->trace_irq_seqno && |
2245 | i915_seqno_passed(seqno, ring->trace_irq_seqno))) { |
2268 | i915_seqno_passed(seqno, ring->trace_irq_seqno))) { |
2246 | ring->irq_put(ring); |
2269 | ring->irq_put(ring); |
2247 | ring->trace_irq_seqno = 0; |
2270 | ring->trace_irq_seqno = 0; |
2248 | } |
2271 | } |
2249 | 2272 | ||
2250 | WARN_ON(i915_verify_lists(ring->dev)); |
2273 | WARN_ON(i915_verify_lists(ring->dev)); |
2251 | } |
2274 | } |
2252 | 2275 | ||
2253 | bool |
2276 | bool |
2254 | i915_gem_retire_requests(struct drm_device *dev) |
2277 | i915_gem_retire_requests(struct drm_device *dev) |
2255 | { |
2278 | { |
2256 | struct drm_i915_private *dev_priv = dev->dev_private; |
2279 | struct drm_i915_private *dev_priv = dev->dev_private; |
2257 | struct intel_engine_cs *ring; |
2280 | struct intel_engine_cs *ring; |
2258 | bool idle = true; |
2281 | bool idle = true; |
2259 | int i; |
2282 | int i; |
2260 | 2283 | ||
2261 | for_each_ring(ring, dev_priv, i) { |
2284 | for_each_ring(ring, dev_priv, i) { |
2262 | i915_gem_retire_requests_ring(ring); |
2285 | i915_gem_retire_requests_ring(ring); |
2263 | idle &= list_empty(&ring->request_list); |
2286 | idle &= list_empty(&ring->request_list); |
- | 2287 | if (i915.enable_execlists) { |
|
- | 2288 | unsigned long flags; |
|
- | 2289 | ||
- | 2290 | spin_lock_irqsave(&ring->execlist_lock, flags); |
|
- | 2291 | idle &= list_empty(&ring->execlist_queue); |
|
- | 2292 | spin_unlock_irqrestore(&ring->execlist_lock, flags); |
|
- | 2293 | ||
- | 2294 | intel_execlists_retire_requests(ring); |
|
- | 2295 | } |
|
2264 | } |
2296 | } |
2265 | 2297 | ||
2266 | if (idle) |
2298 | if (idle) |
2267 | mod_delayed_work(dev_priv->wq, |
2299 | mod_delayed_work(dev_priv->wq, |
2268 | &dev_priv->mm.idle_work, |
2300 | &dev_priv->mm.idle_work, |
2269 | msecs_to_jiffies(100)); |
2301 | msecs_to_jiffies(100)); |
2270 | 2302 | ||
2271 | return idle; |
2303 | return idle; |
2272 | } |
2304 | } |
2273 | 2305 | ||
2274 | static void |
2306 | static void |
2275 | i915_gem_retire_work_handler(struct work_struct *work) |
2307 | i915_gem_retire_work_handler(struct work_struct *work) |
2276 | { |
2308 | { |
2277 | struct drm_i915_private *dev_priv = |
2309 | struct drm_i915_private *dev_priv = |
2278 | container_of(work, typeof(*dev_priv), mm.retire_work.work); |
2310 | container_of(work, typeof(*dev_priv), mm.retire_work.work); |
2279 | struct drm_device *dev = dev_priv->dev; |
2311 | struct drm_device *dev = dev_priv->dev; |
2280 | bool idle; |
2312 | bool idle; |
2281 | 2313 | ||
2282 | /* Come back later if the device is busy... */ |
2314 | /* Come back later if the device is busy... */ |
2283 | idle = false; |
2315 | idle = false; |
2284 | if (mutex_trylock(&dev->struct_mutex)) { |
2316 | if (mutex_trylock(&dev->struct_mutex)) { |
2285 | idle = i915_gem_retire_requests(dev); |
2317 | idle = i915_gem_retire_requests(dev); |
2286 | mutex_unlock(&dev->struct_mutex); |
2318 | mutex_unlock(&dev->struct_mutex); |
2287 | } |
2319 | } |
2288 | if (!idle) |
2320 | if (!idle) |
2289 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2321 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2290 | round_jiffies_up_relative(HZ)); |
2322 | round_jiffies_up_relative(HZ)); |
2291 | } |
2323 | } |
2292 | 2324 | ||
2293 | static void |
2325 | static void |
2294 | i915_gem_idle_work_handler(struct work_struct *work) |
2326 | i915_gem_idle_work_handler(struct work_struct *work) |
2295 | { |
2327 | { |
2296 | struct drm_i915_private *dev_priv = |
2328 | struct drm_i915_private *dev_priv = |
2297 | container_of(work, typeof(*dev_priv), mm.idle_work.work); |
2329 | container_of(work, typeof(*dev_priv), mm.idle_work.work); |
2298 | 2330 | ||
2299 | intel_mark_idle(dev_priv->dev); |
2331 | intel_mark_idle(dev_priv->dev); |
2300 | } |
2332 | } |
2301 | 2333 | ||
2302 | /** |
2334 | /** |
2303 | * Ensures that an object will eventually get non-busy by flushing any required |
2335 | * Ensures that an object will eventually get non-busy by flushing any required |
2304 | * write domains, emitting any outstanding lazy request and retiring and |
2336 | * write domains, emitting any outstanding lazy request and retiring and |
2305 | * completed requests. |
2337 | * completed requests. |
2306 | */ |
2338 | */ |
2307 | static int |
2339 | static int |
2308 | i915_gem_object_flush_active(struct drm_i915_gem_object *obj) |
2340 | i915_gem_object_flush_active(struct drm_i915_gem_object *obj) |
2309 | { |
2341 | { |
2310 | int ret; |
2342 | int ret; |
2311 | 2343 | ||
2312 | if (obj->active) { |
2344 | if (obj->active) { |
2313 | ret = i915_gem_check_olr(obj->ring, obj->last_read_seqno); |
2345 | ret = i915_gem_check_olr(obj->ring, obj->last_read_seqno); |
2314 | if (ret) |
2346 | if (ret) |
2315 | return ret; |
2347 | return ret; |
2316 | 2348 | ||
2317 | i915_gem_retire_requests_ring(obj->ring); |
2349 | i915_gem_retire_requests_ring(obj->ring); |
2318 | } |
2350 | } |
2319 | 2351 | ||
2320 | return 0; |
2352 | return 0; |
2321 | } |
2353 | } |
2322 | 2354 | ||
2323 | /** |
2355 | /** |
2324 | * i915_gem_wait_ioctl - implements DRM_IOCTL_I915_GEM_WAIT |
2356 | * i915_gem_wait_ioctl - implements DRM_IOCTL_I915_GEM_WAIT |
2325 | * @DRM_IOCTL_ARGS: standard ioctl arguments |
2357 | * @DRM_IOCTL_ARGS: standard ioctl arguments |
2326 | * |
2358 | * |
2327 | * Returns 0 if successful, else an error is returned with the remaining time in |
2359 | * Returns 0 if successful, else an error is returned with the remaining time in |
2328 | * the timeout parameter. |
2360 | * the timeout parameter. |
2329 | * -ETIME: object is still busy after timeout |
2361 | * -ETIME: object is still busy after timeout |
2330 | * -ERESTARTSYS: signal interrupted the wait |
2362 | * -ERESTARTSYS: signal interrupted the wait |
2331 | * -ENONENT: object doesn't exist |
2363 | * -ENONENT: object doesn't exist |
2332 | * Also possible, but rare: |
2364 | * Also possible, but rare: |
2333 | * -EAGAIN: GPU wedged |
2365 | * -EAGAIN: GPU wedged |
2334 | * -ENOMEM: damn |
2366 | * -ENOMEM: damn |
2335 | * -ENODEV: Internal IRQ fail |
2367 | * -ENODEV: Internal IRQ fail |
2336 | * -E?: The add request failed |
2368 | * -E?: The add request failed |
2337 | * |
2369 | * |
2338 | * The wait ioctl with a timeout of 0 reimplements the busy ioctl. With any |
2370 | * The wait ioctl with a timeout of 0 reimplements the busy ioctl. With any |
2339 | * non-zero timeout parameter the wait ioctl will wait for the given number of |
2371 | * non-zero timeout parameter the wait ioctl will wait for the given number of |
2340 | * nanoseconds on an object becoming unbusy. Since the wait itself does so |
2372 | * nanoseconds on an object becoming unbusy. Since the wait itself does so |
2341 | * without holding struct_mutex the object may become re-busied before this |
2373 | * without holding struct_mutex the object may become re-busied before this |
2342 | * function completes. A similar but shorter * race condition exists in the busy |
2374 | * function completes. A similar but shorter * race condition exists in the busy |
2343 | * ioctl |
2375 | * ioctl |
2344 | */ |
2376 | */ |
2345 | int |
2377 | int |
2346 | i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) |
2378 | i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) |
2347 | { |
2379 | { |
2348 | struct drm_i915_private *dev_priv = dev->dev_private; |
2380 | struct drm_i915_private *dev_priv = dev->dev_private; |
2349 | struct drm_i915_gem_wait *args = data; |
2381 | struct drm_i915_gem_wait *args = data; |
2350 | struct drm_i915_gem_object *obj; |
2382 | struct drm_i915_gem_object *obj; |
2351 | struct intel_engine_cs *ring = NULL; |
2383 | struct intel_engine_cs *ring = NULL; |
2352 | unsigned reset_counter; |
2384 | unsigned reset_counter; |
2353 | u32 seqno = 0; |
2385 | u32 seqno = 0; |
2354 | int ret = 0; |
2386 | int ret = 0; |
- | 2387 | ||
- | 2388 | if (args->flags != 0) |
|
- | 2389 | return -EINVAL; |
|
2355 | 2390 | ||
2356 | ret = i915_mutex_lock_interruptible(dev); |
2391 | ret = i915_mutex_lock_interruptible(dev); |
2357 | if (ret) |
2392 | if (ret) |
2358 | return ret; |
2393 | return ret; |
2359 | 2394 | ||
2360 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->bo_handle)); |
2395 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->bo_handle)); |
2361 | if (&obj->base == NULL) { |
2396 | if (&obj->base == NULL) { |
2362 | mutex_unlock(&dev->struct_mutex); |
2397 | mutex_unlock(&dev->struct_mutex); |
2363 | return -ENOENT; |
2398 | return -ENOENT; |
2364 | } |
2399 | } |
2365 | 2400 | ||
2366 | /* Need to make sure the object gets inactive eventually. */ |
2401 | /* Need to make sure the object gets inactive eventually. */ |
2367 | ret = i915_gem_object_flush_active(obj); |
2402 | ret = i915_gem_object_flush_active(obj); |
2368 | if (ret) |
2403 | if (ret) |
2369 | goto out; |
2404 | goto out; |
2370 | 2405 | ||
2371 | if (obj->active) { |
2406 | if (obj->active) { |
2372 | seqno = obj->last_read_seqno; |
2407 | seqno = obj->last_read_seqno; |
2373 | ring = obj->ring; |
2408 | ring = obj->ring; |
2374 | } |
2409 | } |
2375 | 2410 | ||
2376 | if (seqno == 0) |
2411 | if (seqno == 0) |
2377 | goto out; |
2412 | goto out; |
2378 | 2413 | ||
2379 | /* Do this after OLR check to make sure we make forward progress polling |
2414 | /* Do this after OLR check to make sure we make forward progress polling |
2380 | * on this IOCTL with a timeout <=0 (like busy ioctl) |
2415 | * on this IOCTL with a timeout <=0 (like busy ioctl) |
2381 | */ |
2416 | */ |
2382 | if (args->timeout_ns <= 0) { |
2417 | if (args->timeout_ns <= 0) { |
2383 | ret = -ETIME; |
2418 | ret = -ETIME; |
2384 | goto out; |
2419 | goto out; |
2385 | } |
2420 | } |
2386 | 2421 | ||
2387 | drm_gem_object_unreference(&obj->base); |
2422 | drm_gem_object_unreference(&obj->base); |
2388 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
2423 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
2389 | mutex_unlock(&dev->struct_mutex); |
2424 | mutex_unlock(&dev->struct_mutex); |
2390 | 2425 | ||
2391 | return __wait_seqno(ring, seqno, reset_counter, true, &args->timeout_ns, |
2426 | return __i915_wait_seqno(ring, seqno, reset_counter, true, |
2392 | file->driver_priv); |
2427 | &args->timeout_ns, file->driver_priv); |
2393 | 2428 | ||
2394 | out: |
2429 | out: |
2395 | drm_gem_object_unreference(&obj->base); |
2430 | drm_gem_object_unreference(&obj->base); |
2396 | mutex_unlock(&dev->struct_mutex); |
2431 | mutex_unlock(&dev->struct_mutex); |
2397 | return ret; |
2432 | return ret; |
2398 | } |
2433 | } |
2399 | 2434 | ||
2400 | /** |
2435 | /** |
2401 | * i915_gem_object_sync - sync an object to a ring. |
2436 | * i915_gem_object_sync - sync an object to a ring. |
2402 | * |
2437 | * |
2403 | * @obj: object which may be in use on another ring. |
2438 | * @obj: object which may be in use on another ring. |
2404 | * @to: ring we wish to use the object on. May be NULL. |
2439 | * @to: ring we wish to use the object on. May be NULL. |
2405 | * |
2440 | * |
2406 | * This code is meant to abstract object synchronization with the GPU. |
2441 | * This code is meant to abstract object synchronization with the GPU. |
2407 | * Calling with NULL implies synchronizing the object with the CPU |
2442 | * Calling with NULL implies synchronizing the object with the CPU |
2408 | * rather than a particular GPU ring. |
2443 | * rather than a particular GPU ring. |
2409 | * |
2444 | * |
2410 | * Returns 0 if successful, else propagates up the lower layer error. |
2445 | * Returns 0 if successful, else propagates up the lower layer error. |
2411 | */ |
2446 | */ |
2412 | int |
2447 | int |
2413 | i915_gem_object_sync(struct drm_i915_gem_object *obj, |
2448 | i915_gem_object_sync(struct drm_i915_gem_object *obj, |
2414 | struct intel_engine_cs *to) |
2449 | struct intel_engine_cs *to) |
2415 | { |
2450 | { |
2416 | struct intel_engine_cs *from = obj->ring; |
2451 | struct intel_engine_cs *from = obj->ring; |
2417 | u32 seqno; |
2452 | u32 seqno; |
2418 | int ret, idx; |
2453 | int ret, idx; |
2419 | 2454 | ||
2420 | if (from == NULL || to == from) |
2455 | if (from == NULL || to == from) |
2421 | return 0; |
2456 | return 0; |
2422 | 2457 | ||
2423 | if (to == NULL || !i915_semaphore_is_enabled(obj->base.dev)) |
2458 | if (to == NULL || !i915_semaphore_is_enabled(obj->base.dev)) |
2424 | return i915_gem_object_wait_rendering(obj, false); |
2459 | return i915_gem_object_wait_rendering(obj, false); |
2425 | 2460 | ||
2426 | idx = intel_ring_sync_index(from, to); |
2461 | idx = intel_ring_sync_index(from, to); |
2427 | 2462 | ||
2428 | seqno = obj->last_read_seqno; |
2463 | seqno = obj->last_read_seqno; |
2429 | /* Optimization: Avoid semaphore sync when we are sure we already |
2464 | /* Optimization: Avoid semaphore sync when we are sure we already |
2430 | * waited for an object with higher seqno */ |
2465 | * waited for an object with higher seqno */ |
2431 | if (seqno <= from->semaphore.sync_seqno[idx]) |
2466 | if (seqno <= from->semaphore.sync_seqno[idx]) |
2432 | return 0; |
2467 | return 0; |
2433 | 2468 | ||
2434 | ret = i915_gem_check_olr(obj->ring, seqno); |
2469 | ret = i915_gem_check_olr(obj->ring, seqno); |
2435 | if (ret) |
2470 | if (ret) |
2436 | return ret; |
2471 | return ret; |
2437 | 2472 | ||
2438 | trace_i915_gem_ring_sync_to(from, to, seqno); |
2473 | trace_i915_gem_ring_sync_to(from, to, seqno); |
2439 | ret = to->semaphore.sync_to(to, from, seqno); |
2474 | ret = to->semaphore.sync_to(to, from, seqno); |
2440 | if (!ret) |
2475 | if (!ret) |
2441 | /* We use last_read_seqno because sync_to() |
2476 | /* We use last_read_seqno because sync_to() |
2442 | * might have just caused seqno wrap under |
2477 | * might have just caused seqno wrap under |
2443 | * the radar. |
2478 | * the radar. |
2444 | */ |
2479 | */ |
2445 | from->semaphore.sync_seqno[idx] = obj->last_read_seqno; |
2480 | from->semaphore.sync_seqno[idx] = obj->last_read_seqno; |
2446 | 2481 | ||
2447 | return ret; |
2482 | return ret; |
2448 | } |
2483 | } |
2449 | 2484 | ||
2450 | static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj) |
2485 | static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj) |
2451 | { |
2486 | { |
2452 | u32 old_write_domain, old_read_domains; |
2487 | u32 old_write_domain, old_read_domains; |
2453 | 2488 | ||
2454 | /* Force a pagefault for domain tracking on next user access */ |
2489 | /* Force a pagefault for domain tracking on next user access */ |
2455 | // i915_gem_release_mmap(obj); |
2490 | // i915_gem_release_mmap(obj); |
2456 | 2491 | ||
2457 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
2492 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
2458 | return; |
2493 | return; |
2459 | 2494 | ||
2460 | /* Wait for any direct GTT access to complete */ |
2495 | /* Wait for any direct GTT access to complete */ |
2461 | mb(); |
2496 | mb(); |
2462 | 2497 | ||
2463 | old_read_domains = obj->base.read_domains; |
2498 | old_read_domains = obj->base.read_domains; |
2464 | old_write_domain = obj->base.write_domain; |
2499 | old_write_domain = obj->base.write_domain; |
2465 | 2500 | ||
2466 | obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT; |
2501 | obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT; |
2467 | obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT; |
2502 | obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT; |
2468 | 2503 | ||
2469 | trace_i915_gem_object_change_domain(obj, |
2504 | trace_i915_gem_object_change_domain(obj, |
2470 | old_read_domains, |
2505 | old_read_domains, |
2471 | old_write_domain); |
2506 | old_write_domain); |
2472 | } |
2507 | } |
2473 | 2508 | ||
2474 | int i915_vma_unbind(struct i915_vma *vma) |
2509 | int i915_vma_unbind(struct i915_vma *vma) |
2475 | { |
2510 | { |
2476 | struct drm_i915_gem_object *obj = vma->obj; |
2511 | struct drm_i915_gem_object *obj = vma->obj; |
2477 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2512 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2478 | int ret; |
2513 | int ret; |
2479 | 2514 | ||
2480 | if(obj == get_fb_obj()) |
2515 | if(obj == get_fb_obj()) |
2481 | return 0; |
2516 | return 0; |
2482 | 2517 | ||
2483 | if (list_empty(&vma->vma_link)) |
2518 | if (list_empty(&vma->vma_link)) |
2484 | return 0; |
2519 | return 0; |
2485 | 2520 | ||
2486 | if (!drm_mm_node_allocated(&vma->node)) { |
2521 | if (!drm_mm_node_allocated(&vma->node)) { |
2487 | i915_gem_vma_destroy(vma); |
2522 | i915_gem_vma_destroy(vma); |
2488 | return 0; |
2523 | return 0; |
2489 | } |
2524 | } |
2490 | 2525 | ||
2491 | if (vma->pin_count) |
2526 | if (vma->pin_count) |
2492 | return -EBUSY; |
2527 | return -EBUSY; |
2493 | 2528 | ||
2494 | BUG_ON(obj->pages == NULL); |
2529 | BUG_ON(obj->pages == NULL); |
2495 | 2530 | ||
2496 | ret = i915_gem_object_finish_gpu(obj); |
2531 | ret = i915_gem_object_finish_gpu(obj); |
2497 | if (ret) |
2532 | if (ret) |
2498 | return ret; |
2533 | return ret; |
2499 | /* Continue on if we fail due to EIO, the GPU is hung so we |
2534 | /* Continue on if we fail due to EIO, the GPU is hung so we |
2500 | * should be safe and we need to cleanup or else we might |
2535 | * should be safe and we need to cleanup or else we might |
2501 | * cause memory corruption through use-after-free. |
2536 | * cause memory corruption through use-after-free. |
2502 | */ |
2537 | */ |
- | 2538 | ||
- | 2539 | /* Throw away the active reference before moving to the unbound list */ |
|
- | 2540 | i915_gem_object_retire(obj); |
|
2503 | 2541 | ||
2504 | if (i915_is_ggtt(vma->vm)) { |
2542 | if (i915_is_ggtt(vma->vm)) { |
2505 | i915_gem_object_finish_gtt(obj); |
2543 | i915_gem_object_finish_gtt(obj); |
2506 | 2544 | ||
2507 | /* release the fence reg _after_ flushing */ |
2545 | /* release the fence reg _after_ flushing */ |
2508 | ret = i915_gem_object_put_fence(obj); |
2546 | ret = i915_gem_object_put_fence(obj); |
2509 | if (ret) |
2547 | if (ret) |
2510 | return ret; |
2548 | return ret; |
2511 | } |
2549 | } |
2512 | 2550 | ||
2513 | trace_i915_vma_unbind(vma); |
2551 | trace_i915_vma_unbind(vma); |
2514 | 2552 | ||
2515 | vma->unbind_vma(vma); |
2553 | vma->unbind_vma(vma); |
2516 | 2554 | ||
2517 | list_del_init(&vma->mm_list); |
2555 | list_del_init(&vma->mm_list); |
2518 | /* Avoid an unnecessary call to unbind on rebind. */ |
- | |
2519 | if (i915_is_ggtt(vma->vm)) |
2556 | if (i915_is_ggtt(vma->vm)) |
2520 | obj->map_and_fenceable = true; |
2557 | obj->map_and_fenceable = false; |
2521 | 2558 | ||
2522 | drm_mm_remove_node(&vma->node); |
2559 | drm_mm_remove_node(&vma->node); |
2523 | i915_gem_vma_destroy(vma); |
2560 | i915_gem_vma_destroy(vma); |
2524 | 2561 | ||
2525 | /* Since the unbound list is global, only move to that list if |
2562 | /* Since the unbound list is global, only move to that list if |
2526 | * no more VMAs exist. */ |
2563 | * no more VMAs exist. */ |
2527 | if (list_empty(&obj->vma_list)) { |
2564 | if (list_empty(&obj->vma_list)) { |
2528 | i915_gem_gtt_finish_object(obj); |
2565 | i915_gem_gtt_finish_object(obj); |
2529 | list_move_tail(&obj->global_list, &dev_priv->mm.unbound_list); |
2566 | list_move_tail(&obj->global_list, &dev_priv->mm.unbound_list); |
2530 | } |
2567 | } |
2531 | 2568 | ||
2532 | /* And finally now the object is completely decoupled from this vma, |
2569 | /* And finally now the object is completely decoupled from this vma, |
2533 | * we can drop its hold on the backing storage and allow it to be |
2570 | * we can drop its hold on the backing storage and allow it to be |
2534 | * reaped by the shrinker. |
2571 | * reaped by the shrinker. |
2535 | */ |
2572 | */ |
2536 | i915_gem_object_unpin_pages(obj); |
2573 | i915_gem_object_unpin_pages(obj); |
2537 | 2574 | ||
2538 | return 0; |
2575 | return 0; |
2539 | } |
2576 | } |
2540 | 2577 | ||
2541 | int i915_gpu_idle(struct drm_device *dev) |
2578 | int i915_gpu_idle(struct drm_device *dev) |
2542 | { |
2579 | { |
2543 | struct drm_i915_private *dev_priv = dev->dev_private; |
2580 | struct drm_i915_private *dev_priv = dev->dev_private; |
2544 | struct intel_engine_cs *ring; |
2581 | struct intel_engine_cs *ring; |
2545 | int ret, i; |
2582 | int ret, i; |
2546 | 2583 | ||
2547 | /* Flush everything onto the inactive list. */ |
2584 | /* Flush everything onto the inactive list. */ |
2548 | for_each_ring(ring, dev_priv, i) { |
2585 | for_each_ring(ring, dev_priv, i) { |
- | 2586 | if (!i915.enable_execlists) { |
|
2549 | ret = i915_switch_context(ring, ring->default_context); |
2587 | ret = i915_switch_context(ring, ring->default_context); |
2550 | if (ret) |
2588 | if (ret) |
2551 | return ret; |
2589 | return ret; |
- | 2590 | } |
|
2552 | 2591 | ||
2553 | ret = intel_ring_idle(ring); |
2592 | ret = intel_ring_idle(ring); |
2554 | if (ret) |
2593 | if (ret) |
2555 | return ret; |
2594 | return ret; |
2556 | } |
2595 | } |
2557 | 2596 | ||
2558 | return 0; |
2597 | return 0; |
2559 | } |
2598 | } |
2560 | 2599 | ||
2561 | static void i965_write_fence_reg(struct drm_device *dev, int reg, |
2600 | static void i965_write_fence_reg(struct drm_device *dev, int reg, |
2562 | struct drm_i915_gem_object *obj) |
2601 | struct drm_i915_gem_object *obj) |
2563 | { |
2602 | { |
2564 | struct drm_i915_private *dev_priv = dev->dev_private; |
2603 | struct drm_i915_private *dev_priv = dev->dev_private; |
2565 | int fence_reg; |
2604 | int fence_reg; |
2566 | int fence_pitch_shift; |
2605 | int fence_pitch_shift; |
2567 | 2606 | ||
2568 | if (INTEL_INFO(dev)->gen >= 6) { |
2607 | if (INTEL_INFO(dev)->gen >= 6) { |
2569 | fence_reg = FENCE_REG_SANDYBRIDGE_0; |
2608 | fence_reg = FENCE_REG_SANDYBRIDGE_0; |
2570 | fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT; |
2609 | fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT; |
2571 | } else { |
2610 | } else { |
2572 | fence_reg = FENCE_REG_965_0; |
2611 | fence_reg = FENCE_REG_965_0; |
2573 | fence_pitch_shift = I965_FENCE_PITCH_SHIFT; |
2612 | fence_pitch_shift = I965_FENCE_PITCH_SHIFT; |
2574 | } |
2613 | } |
2575 | 2614 | ||
2576 | fence_reg += reg * 8; |
2615 | fence_reg += reg * 8; |
2577 | 2616 | ||
2578 | /* To w/a incoherency with non-atomic 64-bit register updates, |
2617 | /* To w/a incoherency with non-atomic 64-bit register updates, |
2579 | * we split the 64-bit update into two 32-bit writes. In order |
2618 | * we split the 64-bit update into two 32-bit writes. In order |
2580 | * for a partial fence not to be evaluated between writes, we |
2619 | * for a partial fence not to be evaluated between writes, we |
2581 | * precede the update with write to turn off the fence register, |
2620 | * precede the update with write to turn off the fence register, |
2582 | * and only enable the fence as the last step. |
2621 | * and only enable the fence as the last step. |
2583 | * |
2622 | * |
2584 | * For extra levels of paranoia, we make sure each step lands |
2623 | * For extra levels of paranoia, we make sure each step lands |
2585 | * before applying the next step. |
2624 | * before applying the next step. |
2586 | */ |
2625 | */ |
2587 | I915_WRITE(fence_reg, 0); |
2626 | I915_WRITE(fence_reg, 0); |
2588 | POSTING_READ(fence_reg); |
2627 | POSTING_READ(fence_reg); |
2589 | 2628 | ||
2590 | if (obj) { |
2629 | if (obj) { |
2591 | u32 size = i915_gem_obj_ggtt_size(obj); |
2630 | u32 size = i915_gem_obj_ggtt_size(obj); |
2592 | uint64_t val; |
2631 | uint64_t val; |
2593 | 2632 | ||
2594 | val = (uint64_t)((i915_gem_obj_ggtt_offset(obj) + size - 4096) & |
2633 | val = (uint64_t)((i915_gem_obj_ggtt_offset(obj) + size - 4096) & |
2595 | 0xfffff000) << 32; |
2634 | 0xfffff000) << 32; |
2596 | val |= i915_gem_obj_ggtt_offset(obj) & 0xfffff000; |
2635 | val |= i915_gem_obj_ggtt_offset(obj) & 0xfffff000; |
2597 | val |= (uint64_t)((obj->stride / 128) - 1) << fence_pitch_shift; |
2636 | val |= (uint64_t)((obj->stride / 128) - 1) << fence_pitch_shift; |
2598 | if (obj->tiling_mode == I915_TILING_Y) |
2637 | if (obj->tiling_mode == I915_TILING_Y) |
2599 | val |= 1 << I965_FENCE_TILING_Y_SHIFT; |
2638 | val |= 1 << I965_FENCE_TILING_Y_SHIFT; |
2600 | val |= I965_FENCE_REG_VALID; |
2639 | val |= I965_FENCE_REG_VALID; |
2601 | 2640 | ||
2602 | I915_WRITE(fence_reg + 4, val >> 32); |
2641 | I915_WRITE(fence_reg + 4, val >> 32); |
2603 | POSTING_READ(fence_reg + 4); |
2642 | POSTING_READ(fence_reg + 4); |
2604 | 2643 | ||
2605 | I915_WRITE(fence_reg + 0, val); |
2644 | I915_WRITE(fence_reg + 0, val); |
2606 | POSTING_READ(fence_reg); |
2645 | POSTING_READ(fence_reg); |
2607 | } else { |
2646 | } else { |
2608 | I915_WRITE(fence_reg + 4, 0); |
2647 | I915_WRITE(fence_reg + 4, 0); |
2609 | POSTING_READ(fence_reg + 4); |
2648 | POSTING_READ(fence_reg + 4); |
2610 | } |
2649 | } |
2611 | } |
2650 | } |
2612 | 2651 | ||
2613 | static void i915_write_fence_reg(struct drm_device *dev, int reg, |
2652 | static void i915_write_fence_reg(struct drm_device *dev, int reg, |
2614 | struct drm_i915_gem_object *obj) |
2653 | struct drm_i915_gem_object *obj) |
2615 | { |
2654 | { |
2616 | struct drm_i915_private *dev_priv = dev->dev_private; |
2655 | struct drm_i915_private *dev_priv = dev->dev_private; |
2617 | u32 val; |
2656 | u32 val; |
2618 | 2657 | ||
2619 | if (obj) { |
2658 | if (obj) { |
2620 | u32 size = i915_gem_obj_ggtt_size(obj); |
2659 | u32 size = i915_gem_obj_ggtt_size(obj); |
2621 | int pitch_val; |
2660 | int pitch_val; |
2622 | int tile_width; |
2661 | int tile_width; |
2623 | 2662 | ||
2624 | WARN((i915_gem_obj_ggtt_offset(obj) & ~I915_FENCE_START_MASK) || |
2663 | WARN((i915_gem_obj_ggtt_offset(obj) & ~I915_FENCE_START_MASK) || |
2625 | (size & -size) != size || |
2664 | (size & -size) != size || |
2626 | (i915_gem_obj_ggtt_offset(obj) & (size - 1)), |
2665 | (i915_gem_obj_ggtt_offset(obj) & (size - 1)), |
2627 | "object 0x%08lx [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n", |
2666 | "object 0x%08lx [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n", |
2628 | i915_gem_obj_ggtt_offset(obj), obj->map_and_fenceable, size); |
2667 | i915_gem_obj_ggtt_offset(obj), obj->map_and_fenceable, size); |
2629 | 2668 | ||
2630 | if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)) |
2669 | if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)) |
2631 | tile_width = 128; |
2670 | tile_width = 128; |
2632 | else |
2671 | else |
2633 | tile_width = 512; |
2672 | tile_width = 512; |
2634 | 2673 | ||
2635 | /* Note: pitch better be a power of two tile widths */ |
2674 | /* Note: pitch better be a power of two tile widths */ |
2636 | pitch_val = obj->stride / tile_width; |
2675 | pitch_val = obj->stride / tile_width; |
2637 | pitch_val = ffs(pitch_val) - 1; |
2676 | pitch_val = ffs(pitch_val) - 1; |
2638 | 2677 | ||
2639 | val = i915_gem_obj_ggtt_offset(obj); |
2678 | val = i915_gem_obj_ggtt_offset(obj); |
2640 | if (obj->tiling_mode == I915_TILING_Y) |
2679 | if (obj->tiling_mode == I915_TILING_Y) |
2641 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2680 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2642 | val |= I915_FENCE_SIZE_BITS(size); |
2681 | val |= I915_FENCE_SIZE_BITS(size); |
2643 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2682 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2644 | val |= I830_FENCE_REG_VALID; |
2683 | val |= I830_FENCE_REG_VALID; |
2645 | } else |
2684 | } else |
2646 | val = 0; |
2685 | val = 0; |
2647 | 2686 | ||
2648 | if (reg < 8) |
2687 | if (reg < 8) |
2649 | reg = FENCE_REG_830_0 + reg * 4; |
2688 | reg = FENCE_REG_830_0 + reg * 4; |
2650 | else |
2689 | else |
2651 | reg = FENCE_REG_945_8 + (reg - 8) * 4; |
2690 | reg = FENCE_REG_945_8 + (reg - 8) * 4; |
2652 | 2691 | ||
2653 | I915_WRITE(reg, val); |
2692 | I915_WRITE(reg, val); |
2654 | POSTING_READ(reg); |
2693 | POSTING_READ(reg); |
2655 | } |
2694 | } |
2656 | 2695 | ||
2657 | static void i830_write_fence_reg(struct drm_device *dev, int reg, |
2696 | static void i830_write_fence_reg(struct drm_device *dev, int reg, |
2658 | struct drm_i915_gem_object *obj) |
2697 | struct drm_i915_gem_object *obj) |
2659 | { |
2698 | { |
2660 | struct drm_i915_private *dev_priv = dev->dev_private; |
2699 | struct drm_i915_private *dev_priv = dev->dev_private; |
2661 | uint32_t val; |
2700 | uint32_t val; |
2662 | 2701 | ||
2663 | if (obj) { |
2702 | if (obj) { |
2664 | u32 size = i915_gem_obj_ggtt_size(obj); |
2703 | u32 size = i915_gem_obj_ggtt_size(obj); |
2665 | uint32_t pitch_val; |
2704 | uint32_t pitch_val; |
2666 | 2705 | ||
2667 | WARN((i915_gem_obj_ggtt_offset(obj) & ~I830_FENCE_START_MASK) || |
2706 | WARN((i915_gem_obj_ggtt_offset(obj) & ~I830_FENCE_START_MASK) || |
2668 | (size & -size) != size || |
2707 | (size & -size) != size || |
2669 | (i915_gem_obj_ggtt_offset(obj) & (size - 1)), |
2708 | (i915_gem_obj_ggtt_offset(obj) & (size - 1)), |
2670 | "object 0x%08lx not 512K or pot-size 0x%08x aligned\n", |
2709 | "object 0x%08lx not 512K or pot-size 0x%08x aligned\n", |
2671 | i915_gem_obj_ggtt_offset(obj), size); |
2710 | i915_gem_obj_ggtt_offset(obj), size); |
2672 | 2711 | ||
2673 | pitch_val = obj->stride / 128; |
2712 | pitch_val = obj->stride / 128; |
2674 | pitch_val = ffs(pitch_val) - 1; |
2713 | pitch_val = ffs(pitch_val) - 1; |
2675 | 2714 | ||
2676 | val = i915_gem_obj_ggtt_offset(obj); |
2715 | val = i915_gem_obj_ggtt_offset(obj); |
2677 | if (obj->tiling_mode == I915_TILING_Y) |
2716 | if (obj->tiling_mode == I915_TILING_Y) |
2678 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2717 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2679 | val |= I830_FENCE_SIZE_BITS(size); |
2718 | val |= I830_FENCE_SIZE_BITS(size); |
2680 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2719 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2681 | val |= I830_FENCE_REG_VALID; |
2720 | val |= I830_FENCE_REG_VALID; |
2682 | } else |
2721 | } else |
2683 | val = 0; |
2722 | val = 0; |
2684 | 2723 | ||
2685 | I915_WRITE(FENCE_REG_830_0 + reg * 4, val); |
2724 | I915_WRITE(FENCE_REG_830_0 + reg * 4, val); |
2686 | POSTING_READ(FENCE_REG_830_0 + reg * 4); |
2725 | POSTING_READ(FENCE_REG_830_0 + reg * 4); |
2687 | } |
2726 | } |
2688 | 2727 | ||
2689 | inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj) |
2728 | inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj) |
2690 | { |
2729 | { |
2691 | return obj && obj->base.read_domains & I915_GEM_DOMAIN_GTT; |
2730 | return obj && obj->base.read_domains & I915_GEM_DOMAIN_GTT; |
2692 | } |
2731 | } |
2693 | 2732 | ||
2694 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
2733 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
2695 | struct drm_i915_gem_object *obj) |
2734 | struct drm_i915_gem_object *obj) |
2696 | { |
2735 | { |
2697 | struct drm_i915_private *dev_priv = dev->dev_private; |
2736 | struct drm_i915_private *dev_priv = dev->dev_private; |
2698 | 2737 | ||
2699 | /* Ensure that all CPU reads are completed before installing a fence |
2738 | /* Ensure that all CPU reads are completed before installing a fence |
2700 | * and all writes before removing the fence. |
2739 | * and all writes before removing the fence. |
2701 | */ |
2740 | */ |
2702 | if (i915_gem_object_needs_mb(dev_priv->fence_regs[reg].obj)) |
2741 | if (i915_gem_object_needs_mb(dev_priv->fence_regs[reg].obj)) |
2703 | mb(); |
2742 | mb(); |
2704 | 2743 | ||
2705 | WARN(obj && (!obj->stride || !obj->tiling_mode), |
2744 | WARN(obj && (!obj->stride || !obj->tiling_mode), |
2706 | "bogus fence setup with stride: 0x%x, tiling mode: %i\n", |
2745 | "bogus fence setup with stride: 0x%x, tiling mode: %i\n", |
2707 | obj->stride, obj->tiling_mode); |
2746 | obj->stride, obj->tiling_mode); |
2708 | 2747 | ||
2709 | switch (INTEL_INFO(dev)->gen) { |
2748 | switch (INTEL_INFO(dev)->gen) { |
- | 2749 | case 9: |
|
2710 | case 8: |
2750 | case 8: |
2711 | case 7: |
2751 | case 7: |
2712 | case 6: |
2752 | case 6: |
2713 | case 5: |
2753 | case 5: |
2714 | case 4: i965_write_fence_reg(dev, reg, obj); break; |
2754 | case 4: i965_write_fence_reg(dev, reg, obj); break; |
2715 | case 3: i915_write_fence_reg(dev, reg, obj); break; |
2755 | case 3: i915_write_fence_reg(dev, reg, obj); break; |
2716 | case 2: i830_write_fence_reg(dev, reg, obj); break; |
2756 | case 2: i830_write_fence_reg(dev, reg, obj); break; |
2717 | default: BUG(); |
2757 | default: BUG(); |
2718 | } |
2758 | } |
2719 | 2759 | ||
2720 | /* And similarly be paranoid that no direct access to this region |
2760 | /* And similarly be paranoid that no direct access to this region |
2721 | * is reordered to before the fence is installed. |
2761 | * is reordered to before the fence is installed. |
2722 | */ |
2762 | */ |
2723 | if (i915_gem_object_needs_mb(obj)) |
2763 | if (i915_gem_object_needs_mb(obj)) |
2724 | mb(); |
2764 | mb(); |
2725 | } |
2765 | } |
2726 | 2766 | ||
2727 | static inline int fence_number(struct drm_i915_private *dev_priv, |
2767 | static inline int fence_number(struct drm_i915_private *dev_priv, |
2728 | struct drm_i915_fence_reg *fence) |
2768 | struct drm_i915_fence_reg *fence) |
2729 | { |
2769 | { |
2730 | return fence - dev_priv->fence_regs; |
2770 | return fence - dev_priv->fence_regs; |
2731 | } |
2771 | } |
2732 | 2772 | ||
2733 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
2773 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
2734 | struct drm_i915_fence_reg *fence, |
2774 | struct drm_i915_fence_reg *fence, |
2735 | bool enable) |
2775 | bool enable) |
2736 | { |
2776 | { |
2737 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2777 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2738 | int reg = fence_number(dev_priv, fence); |
2778 | int reg = fence_number(dev_priv, fence); |
2739 | 2779 | ||
2740 | i915_gem_write_fence(obj->base.dev, reg, enable ? obj : NULL); |
2780 | i915_gem_write_fence(obj->base.dev, reg, enable ? obj : NULL); |
2741 | 2781 | ||
2742 | if (enable) { |
2782 | if (enable) { |
2743 | obj->fence_reg = reg; |
2783 | obj->fence_reg = reg; |
2744 | fence->obj = obj; |
2784 | fence->obj = obj; |
2745 | list_move_tail(&fence->lru_list, &dev_priv->mm.fence_list); |
2785 | list_move_tail(&fence->lru_list, &dev_priv->mm.fence_list); |
2746 | } else { |
2786 | } else { |
2747 | obj->fence_reg = I915_FENCE_REG_NONE; |
2787 | obj->fence_reg = I915_FENCE_REG_NONE; |
2748 | fence->obj = NULL; |
2788 | fence->obj = NULL; |
2749 | list_del_init(&fence->lru_list); |
2789 | list_del_init(&fence->lru_list); |
2750 | } |
2790 | } |
2751 | obj->fence_dirty = false; |
2791 | obj->fence_dirty = false; |
2752 | } |
2792 | } |
2753 | 2793 | ||
2754 | static int |
2794 | static int |
2755 | i915_gem_object_wait_fence(struct drm_i915_gem_object *obj) |
2795 | i915_gem_object_wait_fence(struct drm_i915_gem_object *obj) |
2756 | { |
2796 | { |
2757 | if (obj->last_fenced_seqno) { |
2797 | if (obj->last_fenced_seqno) { |
2758 | int ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno); |
2798 | int ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno); |
2759 | if (ret) |
2799 | if (ret) |
2760 | return ret; |
2800 | return ret; |
2761 | 2801 | ||
2762 | obj->last_fenced_seqno = 0; |
2802 | obj->last_fenced_seqno = 0; |
2763 | } |
2803 | } |
2764 | - | ||
2765 | obj->fenced_gpu_access = false; |
2804 | |
2766 | return 0; |
2805 | return 0; |
2767 | } |
2806 | } |
2768 | 2807 | ||
2769 | int |
2808 | int |
2770 | i915_gem_object_put_fence(struct drm_i915_gem_object *obj) |
2809 | i915_gem_object_put_fence(struct drm_i915_gem_object *obj) |
2771 | { |
2810 | { |
2772 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2811 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2773 | struct drm_i915_fence_reg *fence; |
2812 | struct drm_i915_fence_reg *fence; |
2774 | int ret; |
2813 | int ret; |
2775 | 2814 | ||
2776 | ret = i915_gem_object_wait_fence(obj); |
2815 | ret = i915_gem_object_wait_fence(obj); |
2777 | if (ret) |
2816 | if (ret) |
2778 | return ret; |
2817 | return ret; |
2779 | 2818 | ||
2780 | if (obj->fence_reg == I915_FENCE_REG_NONE) |
2819 | if (obj->fence_reg == I915_FENCE_REG_NONE) |
2781 | return 0; |
2820 | return 0; |
2782 | 2821 | ||
2783 | fence = &dev_priv->fence_regs[obj->fence_reg]; |
2822 | fence = &dev_priv->fence_regs[obj->fence_reg]; |
2784 | 2823 | ||
2785 | if (WARN_ON(fence->pin_count)) |
2824 | if (WARN_ON(fence->pin_count)) |
2786 | return -EBUSY; |
2825 | return -EBUSY; |
2787 | 2826 | ||
2788 | i915_gem_object_fence_lost(obj); |
2827 | i915_gem_object_fence_lost(obj); |
2789 | i915_gem_object_update_fence(obj, fence, false); |
2828 | i915_gem_object_update_fence(obj, fence, false); |
2790 | 2829 | ||
2791 | return 0; |
2830 | return 0; |
2792 | } |
2831 | } |
2793 | 2832 | ||
2794 | static struct drm_i915_fence_reg * |
2833 | static struct drm_i915_fence_reg * |
2795 | i915_find_fence_reg(struct drm_device *dev) |
2834 | i915_find_fence_reg(struct drm_device *dev) |
2796 | { |
2835 | { |
2797 | struct drm_i915_private *dev_priv = dev->dev_private; |
2836 | struct drm_i915_private *dev_priv = dev->dev_private; |
2798 | struct drm_i915_fence_reg *reg, *avail; |
2837 | struct drm_i915_fence_reg *reg, *avail; |
2799 | int i; |
2838 | int i; |
2800 | 2839 | ||
2801 | /* First try to find a free reg */ |
2840 | /* First try to find a free reg */ |
2802 | avail = NULL; |
2841 | avail = NULL; |
2803 | for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) { |
2842 | for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) { |
2804 | reg = &dev_priv->fence_regs[i]; |
2843 | reg = &dev_priv->fence_regs[i]; |
2805 | if (!reg->obj) |
2844 | if (!reg->obj) |
2806 | return reg; |
2845 | return reg; |
2807 | 2846 | ||
2808 | if (!reg->pin_count) |
2847 | if (!reg->pin_count) |
2809 | avail = reg; |
2848 | avail = reg; |
2810 | } |
2849 | } |
2811 | 2850 | ||
2812 | if (avail == NULL) |
2851 | if (avail == NULL) |
2813 | goto deadlock; |
2852 | goto deadlock; |
2814 | 2853 | ||
2815 | /* None available, try to steal one or wait for a user to finish */ |
2854 | /* None available, try to steal one or wait for a user to finish */ |
2816 | list_for_each_entry(reg, &dev_priv->mm.fence_list, lru_list) { |
2855 | list_for_each_entry(reg, &dev_priv->mm.fence_list, lru_list) { |
2817 | if (reg->pin_count) |
2856 | if (reg->pin_count) |
2818 | continue; |
2857 | continue; |
2819 | 2858 | ||
2820 | return reg; |
2859 | return reg; |
2821 | } |
2860 | } |
2822 | 2861 | ||
2823 | deadlock: |
2862 | deadlock: |
2824 | /* Wait for completion of pending flips which consume fences */ |
2863 | /* Wait for completion of pending flips which consume fences */ |
2825 | // if (intel_has_pending_fb_unpin(dev)) |
2864 | // if (intel_has_pending_fb_unpin(dev)) |
2826 | // return ERR_PTR(-EAGAIN); |
2865 | // return ERR_PTR(-EAGAIN); |
2827 | 2866 | ||
2828 | return ERR_PTR(-EDEADLK); |
2867 | return ERR_PTR(-EDEADLK); |
2829 | } |
2868 | } |
2830 | 2869 | ||
2831 | /** |
2870 | /** |
2832 | * i915_gem_object_get_fence - set up fencing for an object |
2871 | * i915_gem_object_get_fence - set up fencing for an object |
2833 | * @obj: object to map through a fence reg |
2872 | * @obj: object to map through a fence reg |
2834 | * |
2873 | * |
2835 | * When mapping objects through the GTT, userspace wants to be able to write |
2874 | * When mapping objects through the GTT, userspace wants to be able to write |
2836 | * to them without having to worry about swizzling if the object is tiled. |
2875 | * to them without having to worry about swizzling if the object is tiled. |
2837 | * This function walks the fence regs looking for a free one for @obj, |
2876 | * This function walks the fence regs looking for a free one for @obj, |
2838 | * stealing one if it can't find any. |
2877 | * stealing one if it can't find any. |
2839 | * |
2878 | * |
2840 | * It then sets up the reg based on the object's properties: address, pitch |
2879 | * It then sets up the reg based on the object's properties: address, pitch |
2841 | * and tiling format. |
2880 | * and tiling format. |
2842 | * |
2881 | * |
2843 | * For an untiled surface, this removes any existing fence. |
2882 | * For an untiled surface, this removes any existing fence. |
2844 | */ |
2883 | */ |
2845 | int |
2884 | int |
2846 | i915_gem_object_get_fence(struct drm_i915_gem_object *obj) |
2885 | i915_gem_object_get_fence(struct drm_i915_gem_object *obj) |
2847 | { |
2886 | { |
2848 | struct drm_device *dev = obj->base.dev; |
2887 | struct drm_device *dev = obj->base.dev; |
2849 | struct drm_i915_private *dev_priv = dev->dev_private; |
2888 | struct drm_i915_private *dev_priv = dev->dev_private; |
2850 | bool enable = obj->tiling_mode != I915_TILING_NONE; |
2889 | bool enable = obj->tiling_mode != I915_TILING_NONE; |
2851 | struct drm_i915_fence_reg *reg; |
2890 | struct drm_i915_fence_reg *reg; |
2852 | int ret; |
2891 | int ret; |
2853 | 2892 | ||
2854 | /* Have we updated the tiling parameters upon the object and so |
2893 | /* Have we updated the tiling parameters upon the object and so |
2855 | * will need to serialise the write to the associated fence register? |
2894 | * will need to serialise the write to the associated fence register? |
2856 | */ |
2895 | */ |
2857 | if (obj->fence_dirty) { |
2896 | if (obj->fence_dirty) { |
2858 | ret = i915_gem_object_wait_fence(obj); |
2897 | ret = i915_gem_object_wait_fence(obj); |
2859 | if (ret) |
2898 | if (ret) |
2860 | return ret; |
2899 | return ret; |
2861 | } |
2900 | } |
2862 | 2901 | ||
2863 | /* Just update our place in the LRU if our fence is getting reused. */ |
2902 | /* Just update our place in the LRU if our fence is getting reused. */ |
2864 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
2903 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
2865 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
2904 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
2866 | if (!obj->fence_dirty) { |
2905 | if (!obj->fence_dirty) { |
2867 | list_move_tail(®->lru_list, |
2906 | list_move_tail(®->lru_list, |
2868 | &dev_priv->mm.fence_list); |
2907 | &dev_priv->mm.fence_list); |
2869 | return 0; |
2908 | return 0; |
2870 | } |
2909 | } |
2871 | } else if (enable) { |
2910 | } else if (enable) { |
- | 2911 | if (WARN_ON(!obj->map_and_fenceable)) |
|
- | 2912 | return -EINVAL; |
|
- | 2913 | ||
2872 | reg = i915_find_fence_reg(dev); |
2914 | reg = i915_find_fence_reg(dev); |
2873 | if (IS_ERR(reg)) |
2915 | if (IS_ERR(reg)) |
2874 | return PTR_ERR(reg); |
2916 | return PTR_ERR(reg); |
2875 | 2917 | ||
2876 | if (reg->obj) { |
2918 | if (reg->obj) { |
2877 | struct drm_i915_gem_object *old = reg->obj; |
2919 | struct drm_i915_gem_object *old = reg->obj; |
2878 | 2920 | ||
2879 | ret = i915_gem_object_wait_fence(old); |
2921 | ret = i915_gem_object_wait_fence(old); |
2880 | if (ret) |
2922 | if (ret) |
2881 | return ret; |
2923 | return ret; |
2882 | 2924 | ||
2883 | i915_gem_object_fence_lost(old); |
2925 | i915_gem_object_fence_lost(old); |
2884 | } |
2926 | } |
2885 | } else |
2927 | } else |
2886 | return 0; |
2928 | return 0; |
2887 | 2929 | ||
2888 | i915_gem_object_update_fence(obj, reg, enable); |
2930 | i915_gem_object_update_fence(obj, reg, enable); |
2889 | 2931 | ||
2890 | return 0; |
2932 | return 0; |
2891 | } |
2933 | } |
2892 | 2934 | ||
2893 | static bool i915_gem_valid_gtt_space(struct drm_device *dev, |
- | |
2894 | struct drm_mm_node *gtt_space, |
2935 | static bool i915_gem_valid_gtt_space(struct i915_vma *vma, |
2895 | unsigned long cache_level) |
2936 | unsigned long cache_level) |
- | 2937 | { |
|
2896 | { |
2938 | struct drm_mm_node *gtt_space = &vma->node; |
- | 2939 | struct drm_mm_node *other; |
|
2897 | struct drm_mm_node *other; |
2940 | |
2898 | 2941 | /* |
|
- | 2942 | * On some machines we have to be careful when putting differing types |
|
2899 | /* On non-LLC machines we have to be careful when putting differing |
2943 | * of snoopable memory together to avoid the prefetcher crossing memory |
- | 2944 | * domains and dying. During vm initialisation, we decide whether or not |
|
2900 | * types of snoopable memory together to avoid the prefetcher |
2945 | * these constraints apply and set the drm_mm.color_adjust |
2901 | * crossing memory domains and dying. |
2946 | * appropriately. |
2902 | */ |
2947 | */ |
2903 | if (HAS_LLC(dev)) |
2948 | if (vma->vm->mm.color_adjust == NULL) |
2904 | return true; |
2949 | return true; |
2905 | 2950 | ||
2906 | if (!drm_mm_node_allocated(gtt_space)) |
2951 | if (!drm_mm_node_allocated(gtt_space)) |
2907 | return true; |
2952 | return true; |
2908 | 2953 | ||
2909 | if (list_empty(>t_space->node_list)) |
2954 | if (list_empty(>t_space->node_list)) |
2910 | return true; |
2955 | return true; |
2911 | 2956 | ||
2912 | other = list_entry(gtt_space->node_list.prev, struct drm_mm_node, node_list); |
2957 | other = list_entry(gtt_space->node_list.prev, struct drm_mm_node, node_list); |
2913 | if (other->allocated && !other->hole_follows && other->color != cache_level) |
2958 | if (other->allocated && !other->hole_follows && other->color != cache_level) |
2914 | return false; |
2959 | return false; |
2915 | 2960 | ||
2916 | other = list_entry(gtt_space->node_list.next, struct drm_mm_node, node_list); |
2961 | other = list_entry(gtt_space->node_list.next, struct drm_mm_node, node_list); |
2917 | if (other->allocated && !gtt_space->hole_follows && other->color != cache_level) |
2962 | if (other->allocated && !gtt_space->hole_follows && other->color != cache_level) |
2918 | return false; |
2963 | return false; |
2919 | 2964 | ||
2920 | return true; |
2965 | return true; |
2921 | } |
2966 | } |
2922 | - | ||
2923 | static void i915_gem_verify_gtt(struct drm_device *dev) |
- | |
2924 | { |
- | |
2925 | #if WATCH_GTT |
- | |
2926 | struct drm_i915_private *dev_priv = dev->dev_private; |
- | |
2927 | struct drm_i915_gem_object *obj; |
- | |
2928 | int err = 0; |
- | |
2929 | - | ||
2930 | list_for_each_entry(obj, &dev_priv->mm.gtt_list, global_list) { |
- | |
2931 | if (obj->gtt_space == NULL) { |
- | |
2932 | printk(KERN_ERR "object found on GTT list with no space reserved\n"); |
- | |
2933 | err++; |
- | |
2934 | continue; |
- | |
2935 | } |
- | |
2936 | - | ||
2937 | if (obj->cache_level != obj->gtt_space->color) { |
- | |
2938 | printk(KERN_ERR "object reserved space [%08lx, %08lx] with wrong color, cache_level=%x, color=%lx\n", |
- | |
2939 | i915_gem_obj_ggtt_offset(obj), |
- | |
2940 | i915_gem_obj_ggtt_offset(obj) + i915_gem_obj_ggtt_size(obj), |
- | |
2941 | obj->cache_level, |
- | |
2942 | obj->gtt_space->color); |
- | |
2943 | err++; |
- | |
2944 | continue; |
- | |
2945 | } |
- | |
2946 | - | ||
2947 | if (!i915_gem_valid_gtt_space(dev, |
- | |
2948 | obj->gtt_space, |
- | |
2949 | obj->cache_level)) { |
- | |
2950 | printk(KERN_ERR "invalid GTT space found at [%08lx, %08lx] - color=%x\n", |
- | |
2951 | i915_gem_obj_ggtt_offset(obj), |
- | |
2952 | i915_gem_obj_ggtt_offset(obj) + i915_gem_obj_ggtt_size(obj), |
- | |
2953 | obj->cache_level); |
- | |
2954 | err++; |
- | |
2955 | continue; |
- | |
2956 | } |
- | |
2957 | } |
- | |
2958 | - | ||
2959 | WARN_ON(err); |
- | |
2960 | #endif |
- | |
2961 | } |
- | |
2962 | 2967 | ||
2963 | /** |
2968 | /** |
2964 | * Finds free space in the GTT aperture and binds the object there. |
2969 | * Finds free space in the GTT aperture and binds the object there. |
2965 | */ |
2970 | */ |
2966 | static struct i915_vma * |
2971 | static struct i915_vma * |
2967 | i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj, |
2972 | i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj, |
2968 | struct i915_address_space *vm, |
2973 | struct i915_address_space *vm, |
2969 | unsigned alignment, |
2974 | unsigned alignment, |
2970 | uint64_t flags) |
2975 | uint64_t flags) |
2971 | { |
2976 | { |
2972 | struct drm_device *dev = obj->base.dev; |
2977 | struct drm_device *dev = obj->base.dev; |
2973 | struct drm_i915_private *dev_priv = dev->dev_private; |
2978 | struct drm_i915_private *dev_priv = dev->dev_private; |
2974 | u32 size, fence_size, fence_alignment, unfenced_alignment; |
2979 | u32 size, fence_size, fence_alignment, unfenced_alignment; |
2975 | unsigned long start = |
2980 | unsigned long start = |
2976 | flags & PIN_OFFSET_BIAS ? flags & PIN_OFFSET_MASK : 0; |
2981 | flags & PIN_OFFSET_BIAS ? flags & PIN_OFFSET_MASK : 0; |
2977 | unsigned long end = |
2982 | unsigned long end = |
2978 | flags & PIN_MAPPABLE ? dev_priv->gtt.mappable_end : vm->total; |
2983 | flags & PIN_MAPPABLE ? dev_priv->gtt.mappable_end : vm->total; |
2979 | struct i915_vma *vma; |
2984 | struct i915_vma *vma; |
2980 | int ret; |
2985 | int ret; |
2981 | 2986 | ||
2982 | fence_size = i915_gem_get_gtt_size(dev, |
2987 | fence_size = i915_gem_get_gtt_size(dev, |
2983 | obj->base.size, |
2988 | obj->base.size, |
2984 | obj->tiling_mode); |
2989 | obj->tiling_mode); |
2985 | fence_alignment = i915_gem_get_gtt_alignment(dev, |
2990 | fence_alignment = i915_gem_get_gtt_alignment(dev, |
2986 | obj->base.size, |
2991 | obj->base.size, |
2987 | obj->tiling_mode, true); |
2992 | obj->tiling_mode, true); |
2988 | unfenced_alignment = |
2993 | unfenced_alignment = |
2989 | i915_gem_get_gtt_alignment(dev, |
2994 | i915_gem_get_gtt_alignment(dev, |
2990 | obj->base.size, |
2995 | obj->base.size, |
2991 | obj->tiling_mode, false); |
2996 | obj->tiling_mode, false); |
2992 | 2997 | ||
2993 | if (alignment == 0) |
2998 | if (alignment == 0) |
2994 | alignment = flags & PIN_MAPPABLE ? fence_alignment : |
2999 | alignment = flags & PIN_MAPPABLE ? fence_alignment : |
2995 | unfenced_alignment; |
3000 | unfenced_alignment; |
2996 | if (flags & PIN_MAPPABLE && alignment & (fence_alignment - 1)) { |
3001 | if (flags & PIN_MAPPABLE && alignment & (fence_alignment - 1)) { |
2997 | DRM_DEBUG("Invalid object alignment requested %u\n", alignment); |
3002 | DRM_DEBUG("Invalid object alignment requested %u\n", alignment); |
2998 | return ERR_PTR(-EINVAL); |
3003 | return ERR_PTR(-EINVAL); |
2999 | } |
3004 | } |
3000 | 3005 | ||
3001 | size = flags & PIN_MAPPABLE ? fence_size : obj->base.size; |
3006 | size = flags & PIN_MAPPABLE ? fence_size : obj->base.size; |
3002 | 3007 | ||
3003 | /* If the object is bigger than the entire aperture, reject it early |
3008 | /* If the object is bigger than the entire aperture, reject it early |
3004 | * before evicting everything in a vain attempt to find space. |
3009 | * before evicting everything in a vain attempt to find space. |
3005 | */ |
3010 | */ |
3006 | if (obj->base.size > end) { |
3011 | if (obj->base.size > end) { |
3007 | DRM_DEBUG("Attempting to bind an object larger than the aperture: object=%zd > %s aperture=%lu\n", |
3012 | DRM_DEBUG("Attempting to bind an object larger than the aperture: object=%zd > %s aperture=%lu\n", |
3008 | obj->base.size, |
3013 | obj->base.size, |
3009 | flags & PIN_MAPPABLE ? "mappable" : "total", |
3014 | flags & PIN_MAPPABLE ? "mappable" : "total", |
3010 | end); |
3015 | end); |
3011 | return ERR_PTR(-E2BIG); |
3016 | return ERR_PTR(-E2BIG); |
3012 | } |
3017 | } |
3013 | 3018 | ||
3014 | ret = i915_gem_object_get_pages(obj); |
3019 | ret = i915_gem_object_get_pages(obj); |
3015 | if (ret) |
3020 | if (ret) |
3016 | return ERR_PTR(ret); |
3021 | return ERR_PTR(ret); |
3017 | 3022 | ||
3018 | i915_gem_object_pin_pages(obj); |
3023 | i915_gem_object_pin_pages(obj); |
3019 | 3024 | ||
3020 | vma = i915_gem_obj_lookup_or_create_vma(obj, vm); |
3025 | vma = i915_gem_obj_lookup_or_create_vma(obj, vm); |
3021 | if (IS_ERR(vma)) |
3026 | if (IS_ERR(vma)) |
3022 | goto err_unpin; |
3027 | goto err_unpin; |
3023 | 3028 | ||
3024 | search_free: |
3029 | search_free: |
3025 | ret = drm_mm_insert_node_in_range_generic(&vm->mm, &vma->node, |
3030 | ret = drm_mm_insert_node_in_range_generic(&vm->mm, &vma->node, |
3026 | size, alignment, |
3031 | size, alignment, |
3027 | obj->cache_level, |
3032 | obj->cache_level, |
3028 | start, end, |
3033 | start, end, |
3029 | DRM_MM_SEARCH_DEFAULT, |
3034 | DRM_MM_SEARCH_DEFAULT, |
3030 | DRM_MM_CREATE_DEFAULT); |
3035 | DRM_MM_CREATE_DEFAULT); |
3031 | if (ret) { |
3036 | if (ret) { |
3032 | 3037 | ||
3033 | goto err_free_vma; |
3038 | goto err_free_vma; |
3034 | } |
3039 | } |
3035 | if (WARN_ON(!i915_gem_valid_gtt_space(dev, &vma->node, |
3040 | if (WARN_ON(!i915_gem_valid_gtt_space(vma, obj->cache_level))) { |
3036 | obj->cache_level))) { |
- | |
3037 | ret = -EINVAL; |
3041 | ret = -EINVAL; |
3038 | goto err_remove_node; |
3042 | goto err_remove_node; |
3039 | } |
3043 | } |
3040 | 3044 | ||
3041 | ret = i915_gem_gtt_prepare_object(obj); |
3045 | ret = i915_gem_gtt_prepare_object(obj); |
3042 | if (ret) |
3046 | if (ret) |
3043 | goto err_remove_node; |
3047 | goto err_remove_node; |
3044 | 3048 | ||
3045 | list_move_tail(&obj->global_list, &dev_priv->mm.bound_list); |
3049 | list_move_tail(&obj->global_list, &dev_priv->mm.bound_list); |
3046 | list_add_tail(&vma->mm_list, &vm->inactive_list); |
3050 | list_add_tail(&vma->mm_list, &vm->inactive_list); |
3047 | - | ||
3048 | if (i915_is_ggtt(vm)) { |
- | |
3049 | bool mappable, fenceable; |
- | |
3050 | - | ||
3051 | fenceable = (vma->node.size == fence_size && |
- | |
3052 | (vma->node.start & (fence_alignment - 1)) == 0); |
- | |
3053 | - | ||
3054 | mappable = (vma->node.start + obj->base.size <= |
- | |
3055 | dev_priv->gtt.mappable_end); |
- | |
3056 | - | ||
3057 | obj->map_and_fenceable = mappable && fenceable; |
- | |
3058 | } |
- | |
3059 | - | ||
3060 | WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable); |
- | |
3061 | 3051 | ||
3062 | trace_i915_vma_bind(vma, flags); |
3052 | trace_i915_vma_bind(vma, flags); |
3063 | vma->bind_vma(vma, obj->cache_level, |
3053 | vma->bind_vma(vma, obj->cache_level, |
3064 | flags & (PIN_MAPPABLE | PIN_GLOBAL) ? GLOBAL_BIND : 0); |
- | |
3065 | 3054 | flags & PIN_GLOBAL ? GLOBAL_BIND : 0); |
|
3066 | i915_gem_verify_gtt(dev); |
3055 | |
3067 | return vma; |
3056 | return vma; |
3068 | 3057 | ||
3069 | err_remove_node: |
3058 | err_remove_node: |
3070 | drm_mm_remove_node(&vma->node); |
3059 | drm_mm_remove_node(&vma->node); |
3071 | err_free_vma: |
3060 | err_free_vma: |
3072 | i915_gem_vma_destroy(vma); |
3061 | i915_gem_vma_destroy(vma); |
3073 | vma = ERR_PTR(ret); |
3062 | vma = ERR_PTR(ret); |
3074 | err_unpin: |
3063 | err_unpin: |
3075 | i915_gem_object_unpin_pages(obj); |
3064 | i915_gem_object_unpin_pages(obj); |
3076 | return vma; |
3065 | return vma; |
3077 | } |
3066 | } |
3078 | 3067 | ||
3079 | bool |
3068 | bool |
3080 | i915_gem_clflush_object(struct drm_i915_gem_object *obj, |
3069 | i915_gem_clflush_object(struct drm_i915_gem_object *obj, |
3081 | bool force) |
3070 | bool force) |
3082 | { |
3071 | { |
3083 | /* If we don't have a page list set up, then we're not pinned |
3072 | /* If we don't have a page list set up, then we're not pinned |
3084 | * to GPU, and we can ignore the cache flush because it'll happen |
3073 | * to GPU, and we can ignore the cache flush because it'll happen |
3085 | * again at bind time. |
3074 | * again at bind time. |
3086 | */ |
3075 | */ |
3087 | if (obj->pages == NULL) |
3076 | if (obj->pages == NULL) |
3088 | return false; |
3077 | return false; |
3089 | 3078 | ||
3090 | /* |
3079 | /* |
3091 | * Stolen memory is always coherent with the GPU as it is explicitly |
3080 | * Stolen memory is always coherent with the GPU as it is explicitly |
3092 | * marked as wc by the system, or the system is cache-coherent. |
3081 | * marked as wc by the system, or the system is cache-coherent. |
3093 | */ |
3082 | */ |
3094 | if (obj->stolen) |
3083 | if (obj->stolen || obj->phys_handle) |
3095 | return false; |
3084 | return false; |
3096 | 3085 | ||
3097 | /* If the GPU is snooping the contents of the CPU cache, |
3086 | /* If the GPU is snooping the contents of the CPU cache, |
3098 | * we do not need to manually clear the CPU cache lines. However, |
3087 | * we do not need to manually clear the CPU cache lines. However, |
3099 | * the caches are only snooped when the render cache is |
3088 | * the caches are only snooped when the render cache is |
3100 | * flushed/invalidated. As we always have to emit invalidations |
3089 | * flushed/invalidated. As we always have to emit invalidations |
3101 | * and flushes when moving into and out of the RENDER domain, correct |
3090 | * and flushes when moving into and out of the RENDER domain, correct |
3102 | * snooping behaviour occurs naturally as the result of our domain |
3091 | * snooping behaviour occurs naturally as the result of our domain |
3103 | * tracking. |
3092 | * tracking. |
3104 | */ |
3093 | */ |
3105 | if (!force && cpu_cache_is_coherent(obj->base.dev, obj->cache_level)) |
3094 | if (!force && cpu_cache_is_coherent(obj->base.dev, obj->cache_level)) |
3106 | return false; |
3095 | return false; |
3107 | 3096 | ||
3108 | trace_i915_gem_object_clflush(obj); |
3097 | trace_i915_gem_object_clflush(obj); |
3109 | drm_clflush_sg(obj->pages); |
3098 | drm_clflush_sg(obj->pages); |
3110 | 3099 | ||
3111 | return true; |
3100 | return true; |
3112 | } |
3101 | } |
3113 | 3102 | ||
3114 | /** Flushes the GTT write domain for the object if it's dirty. */ |
3103 | /** Flushes the GTT write domain for the object if it's dirty. */ |
3115 | static void |
3104 | static void |
3116 | i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj) |
3105 | i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj) |
3117 | { |
3106 | { |
3118 | uint32_t old_write_domain; |
3107 | uint32_t old_write_domain; |
3119 | 3108 | ||
3120 | if (obj->base.write_domain != I915_GEM_DOMAIN_GTT) |
3109 | if (obj->base.write_domain != I915_GEM_DOMAIN_GTT) |
3121 | return; |
3110 | return; |
3122 | 3111 | ||
3123 | /* No actual flushing is required for the GTT write domain. Writes |
3112 | /* No actual flushing is required for the GTT write domain. Writes |
3124 | * to it immediately go to main memory as far as we know, so there's |
3113 | * to it immediately go to main memory as far as we know, so there's |
3125 | * no chipset flush. It also doesn't land in render cache. |
3114 | * no chipset flush. It also doesn't land in render cache. |
3126 | * |
3115 | * |
3127 | * However, we do have to enforce the order so that all writes through |
3116 | * However, we do have to enforce the order so that all writes through |
3128 | * the GTT land before any writes to the device, such as updates to |
3117 | * the GTT land before any writes to the device, such as updates to |
3129 | * the GATT itself. |
3118 | * the GATT itself. |
3130 | */ |
3119 | */ |
3131 | wmb(); |
3120 | wmb(); |
3132 | 3121 | ||
3133 | old_write_domain = obj->base.write_domain; |
3122 | old_write_domain = obj->base.write_domain; |
3134 | obj->base.write_domain = 0; |
3123 | obj->base.write_domain = 0; |
- | 3124 | ||
- | 3125 | intel_fb_obj_flush(obj, false); |
|
3135 | 3126 | ||
3136 | trace_i915_gem_object_change_domain(obj, |
3127 | trace_i915_gem_object_change_domain(obj, |
3137 | obj->base.read_domains, |
3128 | obj->base.read_domains, |
3138 | old_write_domain); |
3129 | old_write_domain); |
3139 | } |
3130 | } |
3140 | 3131 | ||
3141 | /** Flushes the CPU write domain for the object if it's dirty. */ |
3132 | /** Flushes the CPU write domain for the object if it's dirty. */ |
3142 | static void |
3133 | static void |
3143 | i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj, |
3134 | i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj, |
3144 | bool force) |
3135 | bool force) |
3145 | { |
3136 | { |
3146 | uint32_t old_write_domain; |
3137 | uint32_t old_write_domain; |
3147 | 3138 | ||
3148 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) |
3139 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) |
3149 | return; |
3140 | return; |
3150 | 3141 | ||
3151 | if (i915_gem_clflush_object(obj, force)) |
3142 | if (i915_gem_clflush_object(obj, force)) |
3152 | i915_gem_chipset_flush(obj->base.dev); |
3143 | i915_gem_chipset_flush(obj->base.dev); |
3153 | 3144 | ||
3154 | old_write_domain = obj->base.write_domain; |
3145 | old_write_domain = obj->base.write_domain; |
3155 | obj->base.write_domain = 0; |
3146 | obj->base.write_domain = 0; |
- | 3147 | ||
- | 3148 | intel_fb_obj_flush(obj, false); |
|
3156 | 3149 | ||
3157 | trace_i915_gem_object_change_domain(obj, |
3150 | trace_i915_gem_object_change_domain(obj, |
3158 | obj->base.read_domains, |
3151 | obj->base.read_domains, |
3159 | old_write_domain); |
3152 | old_write_domain); |
3160 | } |
3153 | } |
3161 | 3154 | ||
3162 | /** |
3155 | /** |
3163 | * Moves a single object to the GTT read, and possibly write domain. |
3156 | * Moves a single object to the GTT read, and possibly write domain. |
3164 | * |
3157 | * |
3165 | * This function returns when the move is complete, including waiting on |
3158 | * This function returns when the move is complete, including waiting on |
3166 | * flushes to occur. |
3159 | * flushes to occur. |
3167 | */ |
3160 | */ |
3168 | int |
3161 | int |
3169 | i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) |
3162 | i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) |
3170 | { |
3163 | { |
3171 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3164 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
- | 3165 | struct i915_vma *vma = i915_gem_obj_to_ggtt(obj); |
|
3172 | uint32_t old_write_domain, old_read_domains; |
3166 | uint32_t old_write_domain, old_read_domains; |
3173 | int ret; |
3167 | int ret; |
3174 | 3168 | ||
3175 | /* Not valid to be called on unbound objects. */ |
3169 | /* Not valid to be called on unbound objects. */ |
3176 | if (!i915_gem_obj_bound_any(obj)) |
3170 | if (vma == NULL) |
3177 | return -EINVAL; |
3171 | return -EINVAL; |
3178 | 3172 | ||
3179 | if (obj->base.write_domain == I915_GEM_DOMAIN_GTT) |
3173 | if (obj->base.write_domain == I915_GEM_DOMAIN_GTT) |
3180 | return 0; |
3174 | return 0; |
3181 | 3175 | ||
3182 | ret = i915_gem_object_wait_rendering(obj, !write); |
3176 | ret = i915_gem_object_wait_rendering(obj, !write); |
3183 | if (ret) |
3177 | if (ret) |
3184 | return ret; |
3178 | return ret; |
3185 | 3179 | ||
3186 | i915_gem_object_retire(obj); |
3180 | i915_gem_object_retire(obj); |
3187 | i915_gem_object_flush_cpu_write_domain(obj, false); |
3181 | i915_gem_object_flush_cpu_write_domain(obj, false); |
3188 | 3182 | ||
3189 | /* Serialise direct access to this object with the barriers for |
3183 | /* Serialise direct access to this object with the barriers for |
3190 | * coherent writes from the GPU, by effectively invalidating the |
3184 | * coherent writes from the GPU, by effectively invalidating the |
3191 | * GTT domain upon first access. |
3185 | * GTT domain upon first access. |
3192 | */ |
3186 | */ |
3193 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
3187 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
3194 | mb(); |
3188 | mb(); |
3195 | 3189 | ||
3196 | old_write_domain = obj->base.write_domain; |
3190 | old_write_domain = obj->base.write_domain; |
3197 | old_read_domains = obj->base.read_domains; |
3191 | old_read_domains = obj->base.read_domains; |
3198 | 3192 | ||
3199 | /* It should now be out of any other write domains, and we can update |
3193 | /* It should now be out of any other write domains, and we can update |
3200 | * the domain values for our changes. |
3194 | * the domain values for our changes. |
3201 | */ |
3195 | */ |
3202 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0); |
3196 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0); |
3203 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3197 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3204 | if (write) { |
3198 | if (write) { |
3205 | obj->base.read_domains = I915_GEM_DOMAIN_GTT; |
3199 | obj->base.read_domains = I915_GEM_DOMAIN_GTT; |
3206 | obj->base.write_domain = I915_GEM_DOMAIN_GTT; |
3200 | obj->base.write_domain = I915_GEM_DOMAIN_GTT; |
3207 | obj->dirty = 1; |
3201 | obj->dirty = 1; |
3208 | } |
3202 | } |
- | 3203 | ||
- | 3204 | if (write) |
|
- | 3205 | intel_fb_obj_invalidate(obj, NULL); |
|
3209 | 3206 | ||
3210 | trace_i915_gem_object_change_domain(obj, |
3207 | trace_i915_gem_object_change_domain(obj, |
3211 | old_read_domains, |
3208 | old_read_domains, |
3212 | old_write_domain); |
3209 | old_write_domain); |
3213 | 3210 | ||
3214 | /* And bump the LRU for this access */ |
3211 | /* And bump the LRU for this access */ |
3215 | if (i915_gem_object_is_inactive(obj)) { |
3212 | if (i915_gem_object_is_inactive(obj)) |
3216 | struct i915_vma *vma = i915_gem_obj_to_ggtt(obj); |
- | |
3217 | if (vma) |
- | |
3218 | list_move_tail(&vma->mm_list, |
3213 | list_move_tail(&vma->mm_list, |
3219 | &dev_priv->gtt.base.inactive_list); |
3214 | &dev_priv->gtt.base.inactive_list); |
3220 | - | ||
3221 | } |
- | |
3222 | 3215 | ||
3223 | return 0; |
3216 | return 0; |
3224 | } |
3217 | } |
3225 | 3218 | ||
3226 | int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, |
3219 | int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, |
3227 | enum i915_cache_level cache_level) |
3220 | enum i915_cache_level cache_level) |
3228 | { |
3221 | { |
3229 | struct drm_device *dev = obj->base.dev; |
3222 | struct drm_device *dev = obj->base.dev; |
3230 | struct i915_vma *vma, *next; |
3223 | struct i915_vma *vma, *next; |
3231 | int ret; |
3224 | int ret; |
3232 | 3225 | ||
3233 | if (obj->cache_level == cache_level) |
3226 | if (obj->cache_level == cache_level) |
3234 | return 0; |
3227 | return 0; |
3235 | 3228 | ||
3236 | if (i915_gem_obj_is_pinned(obj)) { |
3229 | if (i915_gem_obj_is_pinned(obj)) { |
3237 | DRM_DEBUG("can not change the cache level of pinned objects\n"); |
3230 | DRM_DEBUG("can not change the cache level of pinned objects\n"); |
3238 | return -EBUSY; |
3231 | return -EBUSY; |
3239 | } |
3232 | } |
3240 | 3233 | ||
3241 | list_for_each_entry_safe(vma, next, &obj->vma_list, vma_link) { |
3234 | list_for_each_entry_safe(vma, next, &obj->vma_list, vma_link) { |
3242 | if (!i915_gem_valid_gtt_space(dev, &vma->node, cache_level)) { |
3235 | if (!i915_gem_valid_gtt_space(vma, cache_level)) { |
3243 | ret = i915_vma_unbind(vma); |
3236 | ret = i915_vma_unbind(vma); |
3244 | if (ret) |
3237 | if (ret) |
3245 | return ret; |
3238 | return ret; |
3246 | } |
3239 | } |
3247 | } |
3240 | } |
3248 | 3241 | ||
3249 | if (i915_gem_obj_bound_any(obj)) { |
3242 | if (i915_gem_obj_bound_any(obj)) { |
3250 | ret = i915_gem_object_finish_gpu(obj); |
3243 | ret = i915_gem_object_finish_gpu(obj); |
3251 | if (ret) |
3244 | if (ret) |
3252 | return ret; |
3245 | return ret; |
3253 | 3246 | ||
3254 | i915_gem_object_finish_gtt(obj); |
3247 | i915_gem_object_finish_gtt(obj); |
3255 | 3248 | ||
3256 | /* Before SandyBridge, you could not use tiling or fence |
3249 | /* Before SandyBridge, you could not use tiling or fence |
3257 | * registers with snooped memory, so relinquish any fences |
3250 | * registers with snooped memory, so relinquish any fences |
3258 | * currently pointing to our region in the aperture. |
3251 | * currently pointing to our region in the aperture. |
3259 | */ |
3252 | */ |
3260 | if (INTEL_INFO(dev)->gen < 6) { |
3253 | if (INTEL_INFO(dev)->gen < 6) { |
3261 | ret = i915_gem_object_put_fence(obj); |
3254 | ret = i915_gem_object_put_fence(obj); |
3262 | if (ret) |
3255 | if (ret) |
3263 | return ret; |
3256 | return ret; |
3264 | } |
3257 | } |
3265 | 3258 | ||
3266 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
3259 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
3267 | if (drm_mm_node_allocated(&vma->node)) |
3260 | if (drm_mm_node_allocated(&vma->node)) |
3268 | vma->bind_vma(vma, cache_level, |
3261 | vma->bind_vma(vma, cache_level, |
3269 | obj->has_global_gtt_mapping ? GLOBAL_BIND : 0); |
3262 | vma->bound & GLOBAL_BIND); |
3270 | } |
3263 | } |
3271 | 3264 | ||
3272 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
3265 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
3273 | vma->node.color = cache_level; |
3266 | vma->node.color = cache_level; |
3274 | obj->cache_level = cache_level; |
3267 | obj->cache_level = cache_level; |
3275 | 3268 | ||
3276 | if (cpu_write_needs_clflush(obj)) { |
3269 | if (cpu_write_needs_clflush(obj)) { |
3277 | u32 old_read_domains, old_write_domain; |
3270 | u32 old_read_domains, old_write_domain; |
3278 | 3271 | ||
3279 | /* If we're coming from LLC cached, then we haven't |
3272 | /* If we're coming from LLC cached, then we haven't |
3280 | * actually been tracking whether the data is in the |
3273 | * actually been tracking whether the data is in the |
3281 | * CPU cache or not, since we only allow one bit set |
3274 | * CPU cache or not, since we only allow one bit set |
3282 | * in obj->write_domain and have been skipping the clflushes. |
3275 | * in obj->write_domain and have been skipping the clflushes. |
3283 | * Just set it to the CPU cache for now. |
3276 | * Just set it to the CPU cache for now. |
3284 | */ |
3277 | */ |
3285 | i915_gem_object_retire(obj); |
3278 | i915_gem_object_retire(obj); |
3286 | WARN_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU); |
3279 | WARN_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU); |
3287 | 3280 | ||
3288 | old_read_domains = obj->base.read_domains; |
3281 | old_read_domains = obj->base.read_domains; |
3289 | old_write_domain = obj->base.write_domain; |
3282 | old_write_domain = obj->base.write_domain; |
3290 | 3283 | ||
3291 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3284 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3292 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3285 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3293 | 3286 | ||
3294 | trace_i915_gem_object_change_domain(obj, |
3287 | trace_i915_gem_object_change_domain(obj, |
3295 | old_read_domains, |
3288 | old_read_domains, |
3296 | old_write_domain); |
3289 | old_write_domain); |
3297 | } |
3290 | } |
3298 | - | ||
3299 | i915_gem_verify_gtt(dev); |
3291 | |
3300 | return 0; |
3292 | return 0; |
3301 | } |
3293 | } |
3302 | 3294 | ||
3303 | int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, |
3295 | int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, |
3304 | struct drm_file *file) |
3296 | struct drm_file *file) |
3305 | { |
3297 | { |
3306 | struct drm_i915_gem_caching *args = data; |
3298 | struct drm_i915_gem_caching *args = data; |
3307 | struct drm_i915_gem_object *obj; |
3299 | struct drm_i915_gem_object *obj; |
3308 | int ret; |
3300 | int ret; |
3309 | 3301 | ||
3310 | ret = i915_mutex_lock_interruptible(dev); |
3302 | ret = i915_mutex_lock_interruptible(dev); |
3311 | if (ret) |
3303 | if (ret) |
3312 | return ret; |
3304 | return ret; |
3313 | 3305 | ||
3314 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3306 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3315 | if (&obj->base == NULL) { |
3307 | if (&obj->base == NULL) { |
3316 | ret = -ENOENT; |
3308 | ret = -ENOENT; |
3317 | goto unlock; |
3309 | goto unlock; |
3318 | } |
3310 | } |
3319 | 3311 | ||
3320 | switch (obj->cache_level) { |
3312 | switch (obj->cache_level) { |
3321 | case I915_CACHE_LLC: |
3313 | case I915_CACHE_LLC: |
3322 | case I915_CACHE_L3_LLC: |
3314 | case I915_CACHE_L3_LLC: |
3323 | args->caching = I915_CACHING_CACHED; |
3315 | args->caching = I915_CACHING_CACHED; |
3324 | break; |
3316 | break; |
3325 | 3317 | ||
3326 | case I915_CACHE_WT: |
3318 | case I915_CACHE_WT: |
3327 | args->caching = I915_CACHING_DISPLAY; |
3319 | args->caching = I915_CACHING_DISPLAY; |
3328 | break; |
3320 | break; |
3329 | 3321 | ||
3330 | default: |
3322 | default: |
3331 | args->caching = I915_CACHING_NONE; |
3323 | args->caching = I915_CACHING_NONE; |
3332 | break; |
3324 | break; |
3333 | } |
3325 | } |
3334 | 3326 | ||
3335 | drm_gem_object_unreference(&obj->base); |
3327 | drm_gem_object_unreference(&obj->base); |
3336 | unlock: |
3328 | unlock: |
3337 | mutex_unlock(&dev->struct_mutex); |
3329 | mutex_unlock(&dev->struct_mutex); |
3338 | return ret; |
3330 | return ret; |
3339 | } |
3331 | } |
3340 | 3332 | ||
3341 | int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, |
3333 | int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, |
3342 | struct drm_file *file) |
3334 | struct drm_file *file) |
3343 | { |
3335 | { |
3344 | struct drm_i915_gem_caching *args = data; |
3336 | struct drm_i915_gem_caching *args = data; |
3345 | struct drm_i915_gem_object *obj; |
3337 | struct drm_i915_gem_object *obj; |
3346 | enum i915_cache_level level; |
3338 | enum i915_cache_level level; |
3347 | int ret; |
3339 | int ret; |
3348 | 3340 | ||
3349 | switch (args->caching) { |
3341 | switch (args->caching) { |
3350 | case I915_CACHING_NONE: |
3342 | case I915_CACHING_NONE: |
3351 | level = I915_CACHE_NONE; |
3343 | level = I915_CACHE_NONE; |
3352 | break; |
3344 | break; |
3353 | case I915_CACHING_CACHED: |
3345 | case I915_CACHING_CACHED: |
3354 | level = I915_CACHE_LLC; |
3346 | level = I915_CACHE_LLC; |
3355 | break; |
3347 | break; |
3356 | case I915_CACHING_DISPLAY: |
3348 | case I915_CACHING_DISPLAY: |
3357 | level = HAS_WT(dev) ? I915_CACHE_WT : I915_CACHE_NONE; |
3349 | level = HAS_WT(dev) ? I915_CACHE_WT : I915_CACHE_NONE; |
3358 | break; |
3350 | break; |
3359 | default: |
3351 | default: |
3360 | return -EINVAL; |
3352 | return -EINVAL; |
3361 | } |
3353 | } |
3362 | 3354 | ||
3363 | ret = i915_mutex_lock_interruptible(dev); |
3355 | ret = i915_mutex_lock_interruptible(dev); |
3364 | if (ret) |
3356 | if (ret) |
3365 | return ret; |
3357 | return ret; |
3366 | 3358 | ||
3367 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3359 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3368 | if (&obj->base == NULL) { |
3360 | if (&obj->base == NULL) { |
3369 | ret = -ENOENT; |
3361 | ret = -ENOENT; |
3370 | goto unlock; |
3362 | goto unlock; |
3371 | } |
3363 | } |
3372 | 3364 | ||
3373 | ret = i915_gem_object_set_cache_level(obj, level); |
3365 | ret = i915_gem_object_set_cache_level(obj, level); |
3374 | 3366 | ||
3375 | drm_gem_object_unreference(&obj->base); |
3367 | drm_gem_object_unreference(&obj->base); |
3376 | unlock: |
3368 | unlock: |
3377 | mutex_unlock(&dev->struct_mutex); |
3369 | mutex_unlock(&dev->struct_mutex); |
3378 | return ret; |
3370 | return ret; |
3379 | } |
3371 | } |
3380 | 3372 | ||
3381 | static bool is_pin_display(struct drm_i915_gem_object *obj) |
3373 | static bool is_pin_display(struct drm_i915_gem_object *obj) |
3382 | { |
3374 | { |
3383 | struct i915_vma *vma; |
3375 | struct i915_vma *vma; |
3384 | - | ||
3385 | if (list_empty(&obj->vma_list)) |
- | |
3386 | return false; |
- | |
3387 | 3376 | ||
3388 | vma = i915_gem_obj_to_ggtt(obj); |
3377 | vma = i915_gem_obj_to_ggtt(obj); |
3389 | if (!vma) |
3378 | if (!vma) |
3390 | return false; |
3379 | return false; |
3391 | 3380 | ||
3392 | /* There are 3 sources that pin objects: |
3381 | /* There are 3 sources that pin objects: |
3393 | * 1. The display engine (scanouts, sprites, cursors); |
3382 | * 1. The display engine (scanouts, sprites, cursors); |
3394 | * 2. Reservations for execbuffer; |
3383 | * 2. Reservations for execbuffer; |
3395 | * 3. The user. |
3384 | * 3. The user. |
3396 | * |
3385 | * |
3397 | * We can ignore reservations as we hold the struct_mutex and |
3386 | * We can ignore reservations as we hold the struct_mutex and |
3398 | * are only called outside of the reservation path. The user |
3387 | * are only called outside of the reservation path. The user |
3399 | * can only increment pin_count once, and so if after |
3388 | * can only increment pin_count once, and so if after |
3400 | * subtracting the potential reference by the user, any pin_count |
3389 | * subtracting the potential reference by the user, any pin_count |
3401 | * remains, it must be due to another use by the display engine. |
3390 | * remains, it must be due to another use by the display engine. |
3402 | */ |
3391 | */ |
3403 | return vma->pin_count - !!obj->user_pin_count; |
3392 | return vma->pin_count - !!obj->user_pin_count; |
3404 | } |
3393 | } |
3405 | 3394 | ||
3406 | /* |
3395 | /* |
3407 | * Prepare buffer for display plane (scanout, cursors, etc). |
3396 | * Prepare buffer for display plane (scanout, cursors, etc). |
3408 | * Can be called from an uninterruptible phase (modesetting) and allows |
3397 | * Can be called from an uninterruptible phase (modesetting) and allows |
3409 | * any flushes to be pipelined (for pageflips). |
3398 | * any flushes to be pipelined (for pageflips). |
3410 | */ |
3399 | */ |
3411 | int |
3400 | int |
3412 | i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, |
3401 | i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, |
3413 | u32 alignment, |
3402 | u32 alignment, |
3414 | struct intel_engine_cs *pipelined) |
3403 | struct intel_engine_cs *pipelined) |
3415 | { |
3404 | { |
3416 | u32 old_read_domains, old_write_domain; |
3405 | u32 old_read_domains, old_write_domain; |
3417 | bool was_pin_display; |
3406 | bool was_pin_display; |
3418 | int ret; |
3407 | int ret; |
3419 | 3408 | ||
3420 | if (pipelined != obj->ring) { |
3409 | if (pipelined != obj->ring) { |
3421 | ret = i915_gem_object_sync(obj, pipelined); |
3410 | ret = i915_gem_object_sync(obj, pipelined); |
3422 | if (ret) |
3411 | if (ret) |
3423 | return ret; |
3412 | return ret; |
3424 | } |
3413 | } |
3425 | 3414 | ||
3426 | /* Mark the pin_display early so that we account for the |
3415 | /* Mark the pin_display early so that we account for the |
3427 | * display coherency whilst setting up the cache domains. |
3416 | * display coherency whilst setting up the cache domains. |
3428 | */ |
3417 | */ |
3429 | was_pin_display = obj->pin_display; |
3418 | was_pin_display = obj->pin_display; |
3430 | obj->pin_display = true; |
3419 | obj->pin_display = true; |
3431 | 3420 | ||
3432 | /* The display engine is not coherent with the LLC cache on gen6. As |
3421 | /* The display engine is not coherent with the LLC cache on gen6. As |
3433 | * a result, we make sure that the pinning that is about to occur is |
3422 | * a result, we make sure that the pinning that is about to occur is |
3434 | * done with uncached PTEs. This is lowest common denominator for all |
3423 | * done with uncached PTEs. This is lowest common denominator for all |
3435 | * chipsets. |
3424 | * chipsets. |
3436 | * |
3425 | * |
3437 | * However for gen6+, we could do better by using the GFDT bit instead |
3426 | * However for gen6+, we could do better by using the GFDT bit instead |
3438 | * of uncaching, which would allow us to flush all the LLC-cached data |
3427 | * of uncaching, which would allow us to flush all the LLC-cached data |
3439 | * with that bit in the PTE to main memory with just one PIPE_CONTROL. |
3428 | * with that bit in the PTE to main memory with just one PIPE_CONTROL. |
3440 | */ |
3429 | */ |
3441 | ret = i915_gem_object_set_cache_level(obj, |
3430 | ret = i915_gem_object_set_cache_level(obj, |
3442 | HAS_WT(obj->base.dev) ? I915_CACHE_WT : I915_CACHE_NONE); |
3431 | HAS_WT(obj->base.dev) ? I915_CACHE_WT : I915_CACHE_NONE); |
3443 | if (ret) |
3432 | if (ret) |
3444 | goto err_unpin_display; |
3433 | goto err_unpin_display; |
3445 | 3434 | ||
3446 | /* As the user may map the buffer once pinned in the display plane |
3435 | /* As the user may map the buffer once pinned in the display plane |
3447 | * (e.g. libkms for the bootup splash), we have to ensure that we |
3436 | * (e.g. libkms for the bootup splash), we have to ensure that we |
3448 | * always use map_and_fenceable for all scanout buffers. |
3437 | * always use map_and_fenceable for all scanout buffers. |
3449 | */ |
3438 | */ |
3450 | ret = i915_gem_obj_ggtt_pin(obj, alignment, PIN_MAPPABLE); |
3439 | ret = i915_gem_obj_ggtt_pin(obj, alignment, PIN_MAPPABLE); |
3451 | if (ret) |
3440 | if (ret) |
3452 | goto err_unpin_display; |
3441 | goto err_unpin_display; |
3453 | 3442 | ||
3454 | i915_gem_object_flush_cpu_write_domain(obj, true); |
3443 | i915_gem_object_flush_cpu_write_domain(obj, true); |
3455 | 3444 | ||
3456 | old_write_domain = obj->base.write_domain; |
3445 | old_write_domain = obj->base.write_domain; |
3457 | old_read_domains = obj->base.read_domains; |
3446 | old_read_domains = obj->base.read_domains; |
3458 | 3447 | ||
3459 | /* It should now be out of any other write domains, and we can update |
3448 | /* It should now be out of any other write domains, and we can update |
3460 | * the domain values for our changes. |
3449 | * the domain values for our changes. |
3461 | */ |
3450 | */ |
3462 | obj->base.write_domain = 0; |
3451 | obj->base.write_domain = 0; |
3463 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3452 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3464 | 3453 | ||
3465 | trace_i915_gem_object_change_domain(obj, |
3454 | trace_i915_gem_object_change_domain(obj, |
3466 | old_read_domains, |
3455 | old_read_domains, |
3467 | old_write_domain); |
3456 | old_write_domain); |
3468 | 3457 | ||
3469 | return 0; |
3458 | return 0; |
3470 | 3459 | ||
3471 | err_unpin_display: |
3460 | err_unpin_display: |
3472 | WARN_ON(was_pin_display != is_pin_display(obj)); |
3461 | WARN_ON(was_pin_display != is_pin_display(obj)); |
3473 | obj->pin_display = was_pin_display; |
3462 | obj->pin_display = was_pin_display; |
3474 | return ret; |
3463 | return ret; |
3475 | } |
3464 | } |
3476 | 3465 | ||
3477 | void |
3466 | void |
3478 | i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj) |
3467 | i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj) |
3479 | { |
3468 | { |
3480 | i915_gem_object_ggtt_unpin(obj); |
3469 | i915_gem_object_ggtt_unpin(obj); |
3481 | obj->pin_display = is_pin_display(obj); |
3470 | obj->pin_display = is_pin_display(obj); |
3482 | } |
3471 | } |
3483 | 3472 | ||
3484 | int |
3473 | int |
3485 | i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj) |
3474 | i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj) |
3486 | { |
3475 | { |
3487 | int ret; |
3476 | int ret; |
3488 | 3477 | ||
3489 | if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0) |
3478 | if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0) |
3490 | return 0; |
3479 | return 0; |
3491 | 3480 | ||
3492 | ret = i915_gem_object_wait_rendering(obj, false); |
3481 | ret = i915_gem_object_wait_rendering(obj, false); |
3493 | if (ret) |
3482 | if (ret) |
3494 | return ret; |
3483 | return ret; |
3495 | 3484 | ||
3496 | /* Ensure that we invalidate the GPU's caches and TLBs. */ |
3485 | /* Ensure that we invalidate the GPU's caches and TLBs. */ |
3497 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
3486 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
3498 | return 0; |
3487 | return 0; |
3499 | } |
3488 | } |
3500 | 3489 | ||
3501 | /** |
3490 | /** |
3502 | * Moves a single object to the CPU read, and possibly write domain. |
3491 | * Moves a single object to the CPU read, and possibly write domain. |
3503 | * |
3492 | * |
3504 | * This function returns when the move is complete, including waiting on |
3493 | * This function returns when the move is complete, including waiting on |
3505 | * flushes to occur. |
3494 | * flushes to occur. |
3506 | */ |
3495 | */ |
3507 | int |
3496 | int |
3508 | i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write) |
3497 | i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write) |
3509 | { |
3498 | { |
3510 | uint32_t old_write_domain, old_read_domains; |
3499 | uint32_t old_write_domain, old_read_domains; |
3511 | int ret; |
3500 | int ret; |
3512 | 3501 | ||
3513 | if (obj->base.write_domain == I915_GEM_DOMAIN_CPU) |
3502 | if (obj->base.write_domain == I915_GEM_DOMAIN_CPU) |
3514 | return 0; |
3503 | return 0; |
3515 | 3504 | ||
3516 | ret = i915_gem_object_wait_rendering(obj, !write); |
3505 | ret = i915_gem_object_wait_rendering(obj, !write); |
3517 | if (ret) |
3506 | if (ret) |
3518 | return ret; |
3507 | return ret; |
3519 | 3508 | ||
3520 | i915_gem_object_retire(obj); |
3509 | i915_gem_object_retire(obj); |
3521 | i915_gem_object_flush_gtt_write_domain(obj); |
3510 | i915_gem_object_flush_gtt_write_domain(obj); |
3522 | 3511 | ||
3523 | old_write_domain = obj->base.write_domain; |
3512 | old_write_domain = obj->base.write_domain; |
3524 | old_read_domains = obj->base.read_domains; |
3513 | old_read_domains = obj->base.read_domains; |
3525 | 3514 | ||
3526 | /* Flush the CPU cache if it's still invalid. */ |
3515 | /* Flush the CPU cache if it's still invalid. */ |
3527 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) { |
3516 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) { |
3528 | i915_gem_clflush_object(obj, false); |
3517 | i915_gem_clflush_object(obj, false); |
3529 | 3518 | ||
3530 | obj->base.read_domains |= I915_GEM_DOMAIN_CPU; |
3519 | obj->base.read_domains |= I915_GEM_DOMAIN_CPU; |
3531 | } |
3520 | } |
3532 | 3521 | ||
3533 | /* It should now be out of any other write domains, and we can update |
3522 | /* It should now be out of any other write domains, and we can update |
3534 | * the domain values for our changes. |
3523 | * the domain values for our changes. |
3535 | */ |
3524 | */ |
3536 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_CPU) != 0); |
3525 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_CPU) != 0); |
3537 | 3526 | ||
3538 | /* If we're writing through the CPU, then the GPU read domains will |
3527 | /* If we're writing through the CPU, then the GPU read domains will |
3539 | * need to be invalidated at next use. |
3528 | * need to be invalidated at next use. |
3540 | */ |
3529 | */ |
3541 | if (write) { |
3530 | if (write) { |
3542 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3531 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3543 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3532 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3544 | } |
3533 | } |
- | 3534 | ||
- | 3535 | if (write) |
|
- | 3536 | intel_fb_obj_invalidate(obj, NULL); |
|
3545 | 3537 | ||
3546 | trace_i915_gem_object_change_domain(obj, |
3538 | trace_i915_gem_object_change_domain(obj, |
3547 | old_read_domains, |
3539 | old_read_domains, |
3548 | old_write_domain); |
3540 | old_write_domain); |
3549 | 3541 | ||
3550 | return 0; |
3542 | return 0; |
3551 | } |
3543 | } |
3552 | 3544 | ||
3553 | /* Throttle our rendering by waiting until the ring has completed our requests |
3545 | /* Throttle our rendering by waiting until the ring has completed our requests |
3554 | * emitted over 20 msec ago. |
3546 | * emitted over 20 msec ago. |
3555 | * |
3547 | * |
3556 | * Note that if we were to use the current jiffies each time around the loop, |
3548 | * Note that if we were to use the current jiffies each time around the loop, |
3557 | * we wouldn't escape the function with any frames outstanding if the time to |
3549 | * we wouldn't escape the function with any frames outstanding if the time to |
3558 | * render a frame was over 20ms. |
3550 | * render a frame was over 20ms. |
3559 | * |
3551 | * |
3560 | * This should get us reasonable parallelism between CPU and GPU but also |
3552 | * This should get us reasonable parallelism between CPU and GPU but also |
3561 | * relatively low latency when blocking on a particular request to finish. |
3553 | * relatively low latency when blocking on a particular request to finish. |
3562 | */ |
3554 | */ |
3563 | static int |
3555 | static int |
3564 | i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file) |
3556 | i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file) |
3565 | { |
3557 | { |
3566 | struct drm_i915_private *dev_priv = dev->dev_private; |
3558 | struct drm_i915_private *dev_priv = dev->dev_private; |
3567 | struct drm_i915_file_private *file_priv = file->driver_priv; |
3559 | struct drm_i915_file_private *file_priv = file->driver_priv; |
3568 | unsigned long recent_enough = jiffies - msecs_to_jiffies(20); |
3560 | unsigned long recent_enough = jiffies - msecs_to_jiffies(20); |
3569 | struct drm_i915_gem_request *request; |
3561 | struct drm_i915_gem_request *request; |
3570 | struct intel_engine_cs *ring = NULL; |
3562 | struct intel_engine_cs *ring = NULL; |
3571 | unsigned reset_counter; |
3563 | unsigned reset_counter; |
3572 | u32 seqno = 0; |
3564 | u32 seqno = 0; |
3573 | int ret; |
3565 | int ret; |
3574 | 3566 | ||
3575 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
3567 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
3576 | if (ret) |
3568 | if (ret) |
3577 | return ret; |
3569 | return ret; |
3578 | 3570 | ||
3579 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, false); |
3571 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, false); |
3580 | if (ret) |
3572 | if (ret) |
3581 | return ret; |
3573 | return ret; |
3582 | 3574 | ||
3583 | spin_lock(&file_priv->mm.lock); |
3575 | spin_lock(&file_priv->mm.lock); |
3584 | list_for_each_entry(request, &file_priv->mm.request_list, client_list) { |
3576 | list_for_each_entry(request, &file_priv->mm.request_list, client_list) { |
3585 | if (time_after_eq(request->emitted_jiffies, recent_enough)) |
3577 | if (time_after_eq(request->emitted_jiffies, recent_enough)) |
3586 | break; |
3578 | break; |
3587 | 3579 | ||
3588 | ring = request->ring; |
3580 | ring = request->ring; |
3589 | seqno = request->seqno; |
3581 | seqno = request->seqno; |
3590 | } |
3582 | } |
3591 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
3583 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
3592 | spin_unlock(&file_priv->mm.lock); |
3584 | spin_unlock(&file_priv->mm.lock); |
3593 | 3585 | ||
3594 | if (seqno == 0) |
3586 | if (seqno == 0) |
3595 | return 0; |
3587 | return 0; |
3596 | 3588 | ||
3597 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL, NULL); |
3589 | ret = __i915_wait_seqno(ring, seqno, reset_counter, true, NULL, NULL); |
3598 | if (ret == 0) |
3590 | if (ret == 0) |
3599 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, 0); |
3591 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, 0); |
3600 | 3592 | ||
3601 | return ret; |
3593 | return ret; |
3602 | } |
3594 | } |
3603 | 3595 | ||
3604 | static bool |
3596 | static bool |
3605 | i915_vma_misplaced(struct i915_vma *vma, uint32_t alignment, uint64_t flags) |
3597 | i915_vma_misplaced(struct i915_vma *vma, uint32_t alignment, uint64_t flags) |
3606 | { |
3598 | { |
3607 | struct drm_i915_gem_object *obj = vma->obj; |
3599 | struct drm_i915_gem_object *obj = vma->obj; |
3608 | 3600 | ||
3609 | if (alignment && |
3601 | if (alignment && |
3610 | vma->node.start & (alignment - 1)) |
3602 | vma->node.start & (alignment - 1)) |
3611 | return true; |
3603 | return true; |
3612 | 3604 | ||
3613 | if (flags & PIN_MAPPABLE && !obj->map_and_fenceable) |
3605 | if (flags & PIN_MAPPABLE && !obj->map_and_fenceable) |
3614 | return true; |
3606 | return true; |
3615 | 3607 | ||
3616 | if (flags & PIN_OFFSET_BIAS && |
3608 | if (flags & PIN_OFFSET_BIAS && |
3617 | vma->node.start < (flags & PIN_OFFSET_MASK)) |
3609 | vma->node.start < (flags & PIN_OFFSET_MASK)) |
3618 | return true; |
3610 | return true; |
3619 | 3611 | ||
3620 | return false; |
3612 | return false; |
3621 | } |
3613 | } |
3622 | 3614 | ||
3623 | int |
3615 | int |
3624 | i915_gem_object_pin(struct drm_i915_gem_object *obj, |
3616 | i915_gem_object_pin(struct drm_i915_gem_object *obj, |
3625 | struct i915_address_space *vm, |
3617 | struct i915_address_space *vm, |
3626 | uint32_t alignment, |
3618 | uint32_t alignment, |
3627 | uint64_t flags) |
3619 | uint64_t flags) |
3628 | { |
3620 | { |
3629 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3621 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3630 | struct i915_vma *vma; |
3622 | struct i915_vma *vma; |
- | 3623 | unsigned bound; |
|
3631 | int ret; |
3624 | int ret; |
3632 | 3625 | ||
3633 | if (WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base)) |
3626 | if (WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base)) |
3634 | return -ENODEV; |
3627 | return -ENODEV; |
3635 | 3628 | ||
3636 | if (WARN_ON(flags & (PIN_GLOBAL | PIN_MAPPABLE) && !i915_is_ggtt(vm))) |
3629 | if (WARN_ON(flags & (PIN_GLOBAL | PIN_MAPPABLE) && !i915_is_ggtt(vm))) |
3637 | return -EINVAL; |
3630 | return -EINVAL; |
- | 3631 | ||
- | 3632 | if (WARN_ON((flags & (PIN_MAPPABLE | PIN_GLOBAL)) == PIN_MAPPABLE)) |
|
- | 3633 | return -EINVAL; |
|
3638 | 3634 | ||
3639 | vma = i915_gem_obj_to_vma(obj, vm); |
3635 | vma = i915_gem_obj_to_vma(obj, vm); |
3640 | if (vma) { |
3636 | if (vma) { |
3641 | if (WARN_ON(vma->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT)) |
3637 | if (WARN_ON(vma->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT)) |
3642 | return -EBUSY; |
3638 | return -EBUSY; |
3643 | 3639 | ||
3644 | if (i915_vma_misplaced(vma, alignment, flags)) { |
3640 | if (i915_vma_misplaced(vma, alignment, flags)) { |
3645 | WARN(vma->pin_count, |
3641 | WARN(vma->pin_count, |
3646 | "bo is already pinned with incorrect alignment:" |
3642 | "bo is already pinned with incorrect alignment:" |
3647 | " offset=%lx, req.alignment=%x, req.map_and_fenceable=%d," |
3643 | " offset=%lx, req.alignment=%x, req.map_and_fenceable=%d," |
3648 | " obj->map_and_fenceable=%d\n", |
3644 | " obj->map_and_fenceable=%d\n", |
3649 | i915_gem_obj_offset(obj, vm), alignment, |
3645 | i915_gem_obj_offset(obj, vm), alignment, |
3650 | !!(flags & PIN_MAPPABLE), |
3646 | !!(flags & PIN_MAPPABLE), |
3651 | obj->map_and_fenceable); |
3647 | obj->map_and_fenceable); |
3652 | ret = i915_vma_unbind(vma); |
3648 | ret = i915_vma_unbind(vma); |
3653 | if (ret) |
3649 | if (ret) |
3654 | return ret; |
3650 | return ret; |
3655 | 3651 | ||
3656 | vma = NULL; |
3652 | vma = NULL; |
3657 | } |
3653 | } |
3658 | } |
3654 | } |
- | 3655 | ||
3659 | 3656 | bound = vma ? vma->bound : 0; |
|
3660 | if (vma == NULL || !drm_mm_node_allocated(&vma->node)) { |
3657 | if (vma == NULL || !drm_mm_node_allocated(&vma->node)) { |
3661 | vma = i915_gem_object_bind_to_vm(obj, vm, alignment, flags); |
3658 | vma = i915_gem_object_bind_to_vm(obj, vm, alignment, flags); |
3662 | if (IS_ERR(vma)) |
3659 | if (IS_ERR(vma)) |
3663 | return PTR_ERR(vma); |
3660 | return PTR_ERR(vma); |
3664 | } |
3661 | } |
3665 | 3662 | ||
3666 | if (flags & PIN_GLOBAL && !obj->has_global_gtt_mapping) |
3663 | if (flags & PIN_GLOBAL && !(vma->bound & GLOBAL_BIND)) |
- | 3664 | vma->bind_vma(vma, obj->cache_level, GLOBAL_BIND); |
|
- | 3665 | ||
- | 3666 | if ((bound ^ vma->bound) & GLOBAL_BIND) { |
|
- | 3667 | bool mappable, fenceable; |
|
- | 3668 | u32 fence_size, fence_alignment; |
|
- | 3669 | ||
- | 3670 | fence_size = i915_gem_get_gtt_size(obj->base.dev, |
|
- | 3671 | obj->base.size, |
|
- | 3672 | obj->tiling_mode); |
|
- | 3673 | fence_alignment = i915_gem_get_gtt_alignment(obj->base.dev, |
|
- | 3674 | obj->base.size, |
|
- | 3675 | obj->tiling_mode, |
|
- | 3676 | true); |
|
- | 3677 | ||
- | 3678 | fenceable = (vma->node.size == fence_size && |
|
- | 3679 | (vma->node.start & (fence_alignment - 1)) == 0); |
|
- | 3680 | ||
- | 3681 | mappable = (vma->node.start + obj->base.size <= |
|
- | 3682 | dev_priv->gtt.mappable_end); |
|
- | 3683 | ||
- | 3684 | obj->map_and_fenceable = mappable && fenceable; |
|
- | 3685 | } |
|
- | 3686 | ||
3667 | vma->bind_vma(vma, obj->cache_level, GLOBAL_BIND); |
3687 | WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable); |
3668 | 3688 | ||
3669 | vma->pin_count++; |
3689 | vma->pin_count++; |
3670 | if (flags & PIN_MAPPABLE) |
3690 | if (flags & PIN_MAPPABLE) |
3671 | obj->pin_mappable |= true; |
3691 | obj->pin_mappable |= true; |
3672 | 3692 | ||
3673 | return 0; |
3693 | return 0; |
3674 | } |
3694 | } |
3675 | 3695 | ||
3676 | void |
3696 | void |
3677 | i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj) |
3697 | i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj) |
3678 | { |
3698 | { |
3679 | struct i915_vma *vma = i915_gem_obj_to_ggtt(obj); |
3699 | struct i915_vma *vma = i915_gem_obj_to_ggtt(obj); |
3680 | 3700 | ||
3681 | BUG_ON(!vma); |
3701 | BUG_ON(!vma); |
3682 | BUG_ON(vma->pin_count == 0); |
3702 | BUG_ON(vma->pin_count == 0); |
3683 | BUG_ON(!i915_gem_obj_ggtt_bound(obj)); |
3703 | BUG_ON(!i915_gem_obj_ggtt_bound(obj)); |
3684 | 3704 | ||
3685 | if (--vma->pin_count == 0) |
3705 | if (--vma->pin_count == 0) |
3686 | obj->pin_mappable = false; |
3706 | obj->pin_mappable = false; |
3687 | } |
3707 | } |
3688 | 3708 | ||
3689 | bool |
3709 | bool |
3690 | i915_gem_object_pin_fence(struct drm_i915_gem_object *obj) |
3710 | i915_gem_object_pin_fence(struct drm_i915_gem_object *obj) |
3691 | { |
3711 | { |
3692 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
3712 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
3693 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3713 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3694 | struct i915_vma *ggtt_vma = i915_gem_obj_to_ggtt(obj); |
3714 | struct i915_vma *ggtt_vma = i915_gem_obj_to_ggtt(obj); |
3695 | 3715 | ||
3696 | WARN_ON(!ggtt_vma || |
3716 | WARN_ON(!ggtt_vma || |
3697 | dev_priv->fence_regs[obj->fence_reg].pin_count > |
3717 | dev_priv->fence_regs[obj->fence_reg].pin_count > |
3698 | ggtt_vma->pin_count); |
3718 | ggtt_vma->pin_count); |
3699 | dev_priv->fence_regs[obj->fence_reg].pin_count++; |
3719 | dev_priv->fence_regs[obj->fence_reg].pin_count++; |
3700 | return true; |
3720 | return true; |
3701 | } else |
3721 | } else |
3702 | return false; |
3722 | return false; |
3703 | } |
3723 | } |
3704 | 3724 | ||
3705 | void |
3725 | void |
3706 | i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj) |
3726 | i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj) |
3707 | { |
3727 | { |
3708 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
3728 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
3709 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3729 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3710 | WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0); |
3730 | WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0); |
3711 | dev_priv->fence_regs[obj->fence_reg].pin_count--; |
3731 | dev_priv->fence_regs[obj->fence_reg].pin_count--; |
3712 | } |
3732 | } |
3713 | } |
3733 | } |
3714 | 3734 | ||
3715 | int |
3735 | int |
3716 | i915_gem_pin_ioctl(struct drm_device *dev, void *data, |
3736 | i915_gem_pin_ioctl(struct drm_device *dev, void *data, |
3717 | struct drm_file *file) |
3737 | struct drm_file *file) |
3718 | { |
3738 | { |
3719 | struct drm_i915_gem_pin *args = data; |
3739 | struct drm_i915_gem_pin *args = data; |
3720 | struct drm_i915_gem_object *obj; |
3740 | struct drm_i915_gem_object *obj; |
3721 | int ret; |
3741 | int ret; |
3722 | 3742 | ||
3723 | if (INTEL_INFO(dev)->gen >= 6) |
3743 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
3724 | return -ENODEV; |
3744 | return -ENODEV; |
3725 | 3745 | ||
3726 | ret = i915_mutex_lock_interruptible(dev); |
3746 | ret = i915_mutex_lock_interruptible(dev); |
3727 | if (ret) |
3747 | if (ret) |
3728 | return ret; |
3748 | return ret; |
3729 | 3749 | ||
3730 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3750 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3731 | if (&obj->base == NULL) { |
3751 | if (&obj->base == NULL) { |
3732 | ret = -ENOENT; |
3752 | ret = -ENOENT; |
3733 | goto unlock; |
3753 | goto unlock; |
3734 | } |
3754 | } |
3735 | 3755 | ||
3736 | if (obj->madv != I915_MADV_WILLNEED) { |
3756 | if (obj->madv != I915_MADV_WILLNEED) { |
3737 | DRM_DEBUG("Attempting to pin a purgeable buffer\n"); |
3757 | DRM_DEBUG("Attempting to pin a purgeable buffer\n"); |
3738 | ret = -EFAULT; |
3758 | ret = -EFAULT; |
3739 | goto out; |
3759 | goto out; |
3740 | } |
3760 | } |
3741 | 3761 | ||
3742 | if (obj->pin_filp != NULL && obj->pin_filp != file) { |
3762 | if (obj->pin_filp != NULL && obj->pin_filp != file) { |
3743 | DRM_DEBUG("Already pinned in i915_gem_pin_ioctl(): %d\n", |
3763 | DRM_DEBUG("Already pinned in i915_gem_pin_ioctl(): %d\n", |
3744 | args->handle); |
3764 | args->handle); |
3745 | ret = -EINVAL; |
3765 | ret = -EINVAL; |
3746 | goto out; |
3766 | goto out; |
3747 | } |
3767 | } |
3748 | 3768 | ||
3749 | if (obj->user_pin_count == ULONG_MAX) { |
3769 | if (obj->user_pin_count == ULONG_MAX) { |
3750 | ret = -EBUSY; |
3770 | ret = -EBUSY; |
3751 | goto out; |
3771 | goto out; |
3752 | } |
3772 | } |
3753 | 3773 | ||
3754 | if (obj->user_pin_count == 0) { |
3774 | if (obj->user_pin_count == 0) { |
3755 | ret = i915_gem_obj_ggtt_pin(obj, args->alignment, PIN_MAPPABLE); |
3775 | ret = i915_gem_obj_ggtt_pin(obj, args->alignment, PIN_MAPPABLE); |
3756 | if (ret) |
3776 | if (ret) |
3757 | goto out; |
3777 | goto out; |
3758 | } |
3778 | } |
3759 | 3779 | ||
3760 | obj->user_pin_count++; |
3780 | obj->user_pin_count++; |
3761 | obj->pin_filp = file; |
3781 | obj->pin_filp = file; |
3762 | 3782 | ||
3763 | args->offset = i915_gem_obj_ggtt_offset(obj); |
3783 | args->offset = i915_gem_obj_ggtt_offset(obj); |
3764 | out: |
3784 | out: |
3765 | drm_gem_object_unreference(&obj->base); |
3785 | drm_gem_object_unreference(&obj->base); |
3766 | unlock: |
3786 | unlock: |
3767 | mutex_unlock(&dev->struct_mutex); |
3787 | mutex_unlock(&dev->struct_mutex); |
3768 | return ret; |
3788 | return ret; |
3769 | } |
3789 | } |
3770 | 3790 | ||
3771 | int |
3791 | int |
3772 | i915_gem_unpin_ioctl(struct drm_device *dev, void *data, |
3792 | i915_gem_unpin_ioctl(struct drm_device *dev, void *data, |
3773 | struct drm_file *file) |
3793 | struct drm_file *file) |
3774 | { |
3794 | { |
3775 | struct drm_i915_gem_pin *args = data; |
3795 | struct drm_i915_gem_pin *args = data; |
3776 | struct drm_i915_gem_object *obj; |
3796 | struct drm_i915_gem_object *obj; |
3777 | int ret; |
3797 | int ret; |
- | 3798 | ||
- | 3799 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
|
- | 3800 | return -ENODEV; |
|
3778 | 3801 | ||
3779 | ret = i915_mutex_lock_interruptible(dev); |
3802 | ret = i915_mutex_lock_interruptible(dev); |
3780 | if (ret) |
3803 | if (ret) |
3781 | return ret; |
3804 | return ret; |
3782 | 3805 | ||
3783 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3806 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3784 | if (&obj->base == NULL) { |
3807 | if (&obj->base == NULL) { |
3785 | ret = -ENOENT; |
3808 | ret = -ENOENT; |
3786 | goto unlock; |
3809 | goto unlock; |
3787 | } |
3810 | } |
3788 | 3811 | ||
3789 | if (obj->pin_filp != file) { |
3812 | if (obj->pin_filp != file) { |
3790 | DRM_DEBUG("Not pinned by caller in i915_gem_pin_ioctl(): %d\n", |
3813 | DRM_DEBUG("Not pinned by caller in i915_gem_pin_ioctl(): %d\n", |
3791 | args->handle); |
3814 | args->handle); |
3792 | ret = -EINVAL; |
3815 | ret = -EINVAL; |
3793 | goto out; |
3816 | goto out; |
3794 | } |
3817 | } |
3795 | obj->user_pin_count--; |
3818 | obj->user_pin_count--; |
3796 | if (obj->user_pin_count == 0) { |
3819 | if (obj->user_pin_count == 0) { |
3797 | obj->pin_filp = NULL; |
3820 | obj->pin_filp = NULL; |
3798 | i915_gem_object_ggtt_unpin(obj); |
3821 | i915_gem_object_ggtt_unpin(obj); |
3799 | } |
3822 | } |
3800 | 3823 | ||
3801 | out: |
3824 | out: |
3802 | drm_gem_object_unreference(&obj->base); |
3825 | drm_gem_object_unreference(&obj->base); |
3803 | unlock: |
3826 | unlock: |
3804 | mutex_unlock(&dev->struct_mutex); |
3827 | mutex_unlock(&dev->struct_mutex); |
3805 | return ret; |
3828 | return ret; |
3806 | } |
3829 | } |
3807 | 3830 | ||
3808 | int |
3831 | int |
3809 | i915_gem_busy_ioctl(struct drm_device *dev, void *data, |
3832 | i915_gem_busy_ioctl(struct drm_device *dev, void *data, |
3810 | struct drm_file *file) |
3833 | struct drm_file *file) |
3811 | { |
3834 | { |
3812 | struct drm_i915_gem_busy *args = data; |
3835 | struct drm_i915_gem_busy *args = data; |
3813 | struct drm_i915_gem_object *obj; |
3836 | struct drm_i915_gem_object *obj; |
3814 | int ret; |
3837 | int ret; |
3815 | 3838 | ||
3816 | ret = i915_mutex_lock_interruptible(dev); |
3839 | ret = i915_mutex_lock_interruptible(dev); |
3817 | if (ret) |
3840 | if (ret) |
3818 | return ret; |
3841 | return ret; |
3819 | 3842 | ||
3820 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3843 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3821 | if (&obj->base == NULL) { |
3844 | if (&obj->base == NULL) { |
3822 | ret = -ENOENT; |
3845 | ret = -ENOENT; |
3823 | goto unlock; |
3846 | goto unlock; |
3824 | } |
3847 | } |
3825 | 3848 | ||
3826 | /* Count all active objects as busy, even if they are currently not used |
3849 | /* Count all active objects as busy, even if they are currently not used |
3827 | * by the gpu. Users of this interface expect objects to eventually |
3850 | * by the gpu. Users of this interface expect objects to eventually |
3828 | * become non-busy without any further actions, therefore emit any |
3851 | * become non-busy without any further actions, therefore emit any |
3829 | * necessary flushes here. |
3852 | * necessary flushes here. |
3830 | */ |
3853 | */ |
3831 | ret = i915_gem_object_flush_active(obj); |
3854 | ret = i915_gem_object_flush_active(obj); |
3832 | 3855 | ||
3833 | args->busy = obj->active; |
3856 | args->busy = obj->active; |
3834 | if (obj->ring) { |
3857 | if (obj->ring) { |
3835 | BUILD_BUG_ON(I915_NUM_RINGS > 16); |
3858 | BUILD_BUG_ON(I915_NUM_RINGS > 16); |
3836 | args->busy |= intel_ring_flag(obj->ring) << 16; |
3859 | args->busy |= intel_ring_flag(obj->ring) << 16; |
3837 | } |
3860 | } |
3838 | 3861 | ||
3839 | drm_gem_object_unreference(&obj->base); |
3862 | drm_gem_object_unreference(&obj->base); |
3840 | unlock: |
3863 | unlock: |
3841 | mutex_unlock(&dev->struct_mutex); |
3864 | mutex_unlock(&dev->struct_mutex); |
3842 | return ret; |
3865 | return ret; |
3843 | } |
3866 | } |
3844 | 3867 | ||
3845 | int |
3868 | int |
3846 | i915_gem_throttle_ioctl(struct drm_device *dev, void *data, |
3869 | i915_gem_throttle_ioctl(struct drm_device *dev, void *data, |
3847 | struct drm_file *file_priv) |
3870 | struct drm_file *file_priv) |
3848 | { |
3871 | { |
3849 | return i915_gem_ring_throttle(dev, file_priv); |
3872 | return i915_gem_ring_throttle(dev, file_priv); |
3850 | } |
3873 | } |
3851 | 3874 | ||
3852 | #if 0 |
3875 | #if 0 |
3853 | 3876 | ||
3854 | int |
3877 | int |
3855 | i915_gem_madvise_ioctl(struct drm_device *dev, void *data, |
3878 | i915_gem_madvise_ioctl(struct drm_device *dev, void *data, |
3856 | struct drm_file *file_priv) |
3879 | struct drm_file *file_priv) |
3857 | { |
3880 | { |
- | 3881 | struct drm_i915_private *dev_priv = dev->dev_private; |
|
3858 | struct drm_i915_gem_madvise *args = data; |
3882 | struct drm_i915_gem_madvise *args = data; |
3859 | struct drm_i915_gem_object *obj; |
3883 | struct drm_i915_gem_object *obj; |
3860 | int ret; |
3884 | int ret; |
3861 | 3885 | ||
3862 | switch (args->madv) { |
3886 | switch (args->madv) { |
3863 | case I915_MADV_DONTNEED: |
3887 | case I915_MADV_DONTNEED: |
3864 | case I915_MADV_WILLNEED: |
3888 | case I915_MADV_WILLNEED: |
3865 | break; |
3889 | break; |
3866 | default: |
3890 | default: |
3867 | return -EINVAL; |
3891 | return -EINVAL; |
3868 | } |
3892 | } |
3869 | 3893 | ||
3870 | ret = i915_mutex_lock_interruptible(dev); |
3894 | ret = i915_mutex_lock_interruptible(dev); |
3871 | if (ret) |
3895 | if (ret) |
3872 | return ret; |
3896 | return ret; |
3873 | 3897 | ||
3874 | obj = to_intel_bo(drm_gem_object_lookup(dev, file_priv, args->handle)); |
3898 | obj = to_intel_bo(drm_gem_object_lookup(dev, file_priv, args->handle)); |
3875 | if (&obj->base == NULL) { |
3899 | if (&obj->base == NULL) { |
3876 | ret = -ENOENT; |
3900 | ret = -ENOENT; |
3877 | goto unlock; |
3901 | goto unlock; |
3878 | } |
3902 | } |
3879 | 3903 | ||
3880 | if (i915_gem_obj_is_pinned(obj)) { |
3904 | if (i915_gem_obj_is_pinned(obj)) { |
3881 | ret = -EINVAL; |
3905 | ret = -EINVAL; |
3882 | goto out; |
3906 | goto out; |
3883 | } |
3907 | } |
- | 3908 | ||
- | 3909 | if (obj->pages && |
|
- | 3910 | obj->tiling_mode != I915_TILING_NONE && |
|
- | 3911 | dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES) { |
|
- | 3912 | if (obj->madv == I915_MADV_WILLNEED) |
|
- | 3913 | i915_gem_object_unpin_pages(obj); |
|
- | 3914 | if (args->madv == I915_MADV_WILLNEED) |
|
- | 3915 | i915_gem_object_pin_pages(obj); |
|
- | 3916 | } |
|
3884 | 3917 | ||
3885 | if (obj->madv != __I915_MADV_PURGED) |
3918 | if (obj->madv != __I915_MADV_PURGED) |
3886 | obj->madv = args->madv; |
3919 | obj->madv = args->madv; |
3887 | 3920 | ||
3888 | /* if the object is no longer attached, discard its backing storage */ |
3921 | /* if the object is no longer attached, discard its backing storage */ |
3889 | if (i915_gem_object_is_purgeable(obj) && obj->pages == NULL) |
3922 | if (i915_gem_object_is_purgeable(obj) && obj->pages == NULL) |
3890 | i915_gem_object_truncate(obj); |
3923 | i915_gem_object_truncate(obj); |
3891 | 3924 | ||
3892 | args->retained = obj->madv != __I915_MADV_PURGED; |
3925 | args->retained = obj->madv != __I915_MADV_PURGED; |
3893 | 3926 | ||
3894 | out: |
3927 | out: |
3895 | drm_gem_object_unreference(&obj->base); |
3928 | drm_gem_object_unreference(&obj->base); |
3896 | unlock: |
3929 | unlock: |
3897 | mutex_unlock(&dev->struct_mutex); |
3930 | mutex_unlock(&dev->struct_mutex); |
3898 | return ret; |
3931 | return ret; |
3899 | } |
3932 | } |
3900 | #endif |
3933 | #endif |
3901 | 3934 | ||
3902 | void i915_gem_object_init(struct drm_i915_gem_object *obj, |
3935 | void i915_gem_object_init(struct drm_i915_gem_object *obj, |
3903 | const struct drm_i915_gem_object_ops *ops) |
3936 | const struct drm_i915_gem_object_ops *ops) |
3904 | { |
3937 | { |
3905 | INIT_LIST_HEAD(&obj->global_list); |
3938 | INIT_LIST_HEAD(&obj->global_list); |
3906 | INIT_LIST_HEAD(&obj->ring_list); |
3939 | INIT_LIST_HEAD(&obj->ring_list); |
3907 | INIT_LIST_HEAD(&obj->obj_exec_link); |
3940 | INIT_LIST_HEAD(&obj->obj_exec_link); |
3908 | INIT_LIST_HEAD(&obj->vma_list); |
3941 | INIT_LIST_HEAD(&obj->vma_list); |
3909 | 3942 | ||
3910 | obj->ops = ops; |
3943 | obj->ops = ops; |
3911 | 3944 | ||
3912 | obj->fence_reg = I915_FENCE_REG_NONE; |
3945 | obj->fence_reg = I915_FENCE_REG_NONE; |
3913 | obj->madv = I915_MADV_WILLNEED; |
3946 | obj->madv = I915_MADV_WILLNEED; |
3914 | /* Avoid an unnecessary call to unbind on the first bind. */ |
- | |
3915 | obj->map_and_fenceable = true; |
- | |
3916 | 3947 | ||
3917 | i915_gem_info_add_obj(obj->base.dev->dev_private, obj->base.size); |
3948 | i915_gem_info_add_obj(obj->base.dev->dev_private, obj->base.size); |
3918 | } |
3949 | } |
3919 | 3950 | ||
3920 | static const struct drm_i915_gem_object_ops i915_gem_object_ops = { |
3951 | static const struct drm_i915_gem_object_ops i915_gem_object_ops = { |
3921 | .get_pages = i915_gem_object_get_pages_gtt, |
3952 | .get_pages = i915_gem_object_get_pages_gtt, |
3922 | .put_pages = i915_gem_object_put_pages_gtt, |
3953 | .put_pages = i915_gem_object_put_pages_gtt, |
3923 | }; |
3954 | }; |
3924 | 3955 | ||
3925 | struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, |
3956 | struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, |
3926 | size_t size) |
3957 | size_t size) |
3927 | { |
3958 | { |
3928 | struct drm_i915_gem_object *obj; |
3959 | struct drm_i915_gem_object *obj; |
3929 | struct address_space *mapping; |
3960 | struct address_space *mapping; |
3930 | gfp_t mask; |
3961 | gfp_t mask; |
3931 | 3962 | ||
3932 | obj = i915_gem_object_alloc(dev); |
3963 | obj = i915_gem_object_alloc(dev); |
3933 | if (obj == NULL) |
3964 | if (obj == NULL) |
3934 | return NULL; |
3965 | return NULL; |
3935 | 3966 | ||
3936 | if (drm_gem_object_init(dev, &obj->base, size) != 0) { |
3967 | if (drm_gem_object_init(dev, &obj->base, size) != 0) { |
3937 | i915_gem_object_free(obj); |
3968 | i915_gem_object_free(obj); |
3938 | return NULL; |
3969 | return NULL; |
3939 | } |
3970 | } |
3940 | 3971 | ||
3941 | 3972 | ||
3942 | i915_gem_object_init(obj, &i915_gem_object_ops); |
3973 | i915_gem_object_init(obj, &i915_gem_object_ops); |
3943 | 3974 | ||
3944 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3975 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3945 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3976 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3946 | 3977 | ||
3947 | if (HAS_LLC(dev)) { |
3978 | if (HAS_LLC(dev)) { |
3948 | /* On some devices, we can have the GPU use the LLC (the CPU |
3979 | /* On some devices, we can have the GPU use the LLC (the CPU |
3949 | * cache) for about a 10% performance improvement |
3980 | * cache) for about a 10% performance improvement |
3950 | * compared to uncached. Graphics requests other than |
3981 | * compared to uncached. Graphics requests other than |
3951 | * display scanout are coherent with the CPU in |
3982 | * display scanout are coherent with the CPU in |
3952 | * accessing this cache. This means in this mode we |
3983 | * accessing this cache. This means in this mode we |
3953 | * don't need to clflush on the CPU side, and on the |
3984 | * don't need to clflush on the CPU side, and on the |
3954 | * GPU side we only need to flush internal caches to |
3985 | * GPU side we only need to flush internal caches to |
3955 | * get data visible to the CPU. |
3986 | * get data visible to the CPU. |
3956 | * |
3987 | * |
3957 | * However, we maintain the display planes as UC, and so |
3988 | * However, we maintain the display planes as UC, and so |
3958 | * need to rebind when first used as such. |
3989 | * need to rebind when first used as such. |
3959 | */ |
3990 | */ |
3960 | obj->cache_level = I915_CACHE_LLC; |
3991 | obj->cache_level = I915_CACHE_LLC; |
3961 | } else |
3992 | } else |
3962 | obj->cache_level = I915_CACHE_NONE; |
3993 | obj->cache_level = I915_CACHE_NONE; |
3963 | 3994 | ||
3964 | trace_i915_gem_object_create(obj); |
3995 | trace_i915_gem_object_create(obj); |
3965 | 3996 | ||
3966 | return obj; |
3997 | return obj; |
3967 | } |
3998 | } |
3968 | 3999 | ||
3969 | void i915_gem_free_object(struct drm_gem_object *gem_obj) |
4000 | void i915_gem_free_object(struct drm_gem_object *gem_obj) |
3970 | { |
4001 | { |
3971 | struct drm_i915_gem_object *obj = to_intel_bo(gem_obj); |
4002 | struct drm_i915_gem_object *obj = to_intel_bo(gem_obj); |
3972 | struct drm_device *dev = obj->base.dev; |
4003 | struct drm_device *dev = obj->base.dev; |
3973 | struct drm_i915_private *dev_priv = dev->dev_private; |
4004 | struct drm_i915_private *dev_priv = dev->dev_private; |
3974 | struct i915_vma *vma, *next; |
4005 | struct i915_vma *vma, *next; |
3975 | 4006 | ||
3976 | intel_runtime_pm_get(dev_priv); |
4007 | intel_runtime_pm_get(dev_priv); |
3977 | 4008 | ||
3978 | trace_i915_gem_object_destroy(obj); |
4009 | trace_i915_gem_object_destroy(obj); |
3979 | 4010 | ||
3980 | list_for_each_entry_safe(vma, next, &obj->vma_list, vma_link) { |
4011 | list_for_each_entry_safe(vma, next, &obj->vma_list, vma_link) { |
3981 | int ret; |
4012 | int ret; |
3982 | 4013 | ||
3983 | vma->pin_count = 0; |
4014 | vma->pin_count = 0; |
3984 | ret = i915_vma_unbind(vma); |
4015 | ret = i915_vma_unbind(vma); |
3985 | if (WARN_ON(ret == -ERESTARTSYS)) { |
4016 | if (WARN_ON(ret == -ERESTARTSYS)) { |
3986 | bool was_interruptible; |
4017 | bool was_interruptible; |
3987 | 4018 | ||
3988 | was_interruptible = dev_priv->mm.interruptible; |
4019 | was_interruptible = dev_priv->mm.interruptible; |
3989 | dev_priv->mm.interruptible = false; |
4020 | dev_priv->mm.interruptible = false; |
3990 | 4021 | ||
3991 | WARN_ON(i915_vma_unbind(vma)); |
4022 | WARN_ON(i915_vma_unbind(vma)); |
3992 | 4023 | ||
3993 | dev_priv->mm.interruptible = was_interruptible; |
4024 | dev_priv->mm.interruptible = was_interruptible; |
3994 | } |
4025 | } |
3995 | } |
4026 | } |
3996 | 4027 | ||
3997 | /* Stolen objects don't hold a ref, but do hold pin count. Fix that up |
4028 | /* Stolen objects don't hold a ref, but do hold pin count. Fix that up |
3998 | * before progressing. */ |
4029 | * before progressing. */ |
3999 | if (obj->stolen) |
4030 | if (obj->stolen) |
4000 | i915_gem_object_unpin_pages(obj); |
4031 | i915_gem_object_unpin_pages(obj); |
4001 | 4032 | ||
4002 | WARN_ON(obj->frontbuffer_bits); |
4033 | WARN_ON(obj->frontbuffer_bits); |
- | 4034 | ||
- | 4035 | if (obj->pages && obj->madv == I915_MADV_WILLNEED && |
|
- | 4036 | dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES && |
|
- | 4037 | obj->tiling_mode != I915_TILING_NONE) |
|
- | 4038 | i915_gem_object_unpin_pages(obj); |
|
4003 | 4039 | ||
4004 | if (WARN_ON(obj->pages_pin_count)) |
4040 | if (WARN_ON(obj->pages_pin_count)) |
4005 | obj->pages_pin_count = 0; |
4041 | obj->pages_pin_count = 0; |
4006 | i915_gem_object_put_pages(obj); |
4042 | i915_gem_object_put_pages(obj); |
4007 | // i915_gem_object_free_mmap_offset(obj); |
4043 | // i915_gem_object_free_mmap_offset(obj); |
4008 | 4044 | ||
4009 | BUG_ON(obj->pages); |
4045 | BUG_ON(obj->pages); |
4010 | 4046 | ||
4011 | 4047 | ||
4012 | if(obj->base.filp != NULL) |
4048 | if(obj->base.filp != NULL) |
4013 | { |
4049 | { |
4014 | // printf("filp %p\n", obj->base.filp); |
4050 | // printf("filp %p\n", obj->base.filp); |
4015 | shmem_file_delete(obj->base.filp); |
4051 | shmem_file_delete(obj->base.filp); |
4016 | } |
4052 | } |
4017 | 4053 | ||
4018 | drm_gem_object_release(&obj->base); |
4054 | drm_gem_object_release(&obj->base); |
4019 | i915_gem_info_remove_obj(dev_priv, obj->base.size); |
4055 | i915_gem_info_remove_obj(dev_priv, obj->base.size); |
4020 | 4056 | ||
4021 | kfree(obj->bit_17); |
4057 | kfree(obj->bit_17); |
4022 | i915_gem_object_free(obj); |
4058 | i915_gem_object_free(obj); |
4023 | 4059 | ||
4024 | intel_runtime_pm_put(dev_priv); |
4060 | intel_runtime_pm_put(dev_priv); |
4025 | } |
4061 | } |
4026 | 4062 | ||
4027 | struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj, |
4063 | struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj, |
4028 | struct i915_address_space *vm) |
4064 | struct i915_address_space *vm) |
4029 | { |
4065 | { |
4030 | struct i915_vma *vma; |
4066 | struct i915_vma *vma; |
4031 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
4067 | list_for_each_entry(vma, &obj->vma_list, vma_link) |
4032 | if (vma->vm == vm) |
4068 | if (vma->vm == vm) |
4033 | return vma; |
4069 | return vma; |
4034 | 4070 | ||
4035 | return NULL; |
4071 | return NULL; |
4036 | } |
4072 | } |
4037 | 4073 | ||
4038 | void i915_gem_vma_destroy(struct i915_vma *vma) |
4074 | void i915_gem_vma_destroy(struct i915_vma *vma) |
4039 | { |
4075 | { |
- | 4076 | struct i915_address_space *vm = NULL; |
|
4040 | WARN_ON(vma->node.allocated); |
4077 | WARN_ON(vma->node.allocated); |
4041 | 4078 | ||
4042 | /* Keep the vma as a placeholder in the execbuffer reservation lists */ |
4079 | /* Keep the vma as a placeholder in the execbuffer reservation lists */ |
4043 | if (!list_empty(&vma->exec_list)) |
4080 | if (!list_empty(&vma->exec_list)) |
4044 | return; |
4081 | return; |
- | 4082 | ||
- | 4083 | vm = vma->vm; |
|
- | 4084 | ||
- | 4085 | if (!i915_is_ggtt(vm)) |
|
- | 4086 | i915_ppgtt_put(i915_vm_to_ppgtt(vm)); |
|
4045 | 4087 | ||
4046 | list_del(&vma->vma_link); |
4088 | list_del(&vma->vma_link); |
4047 | 4089 | ||
4048 | kfree(vma); |
4090 | kfree(vma); |
4049 | } |
4091 | } |
4050 | 4092 | ||
4051 | #if 0 |
4093 | #if 0 |
4052 | int |
4094 | int |
4053 | i915_gem_suspend(struct drm_device *dev) |
4095 | i915_gem_suspend(struct drm_device *dev) |
4054 | { |
4096 | { |
4055 | struct drm_i915_private *dev_priv = dev->dev_private; |
4097 | struct drm_i915_private *dev_priv = dev->dev_private; |
4056 | int ret = 0; |
4098 | int ret = 0; |
4057 | 4099 | ||
4058 | mutex_lock(&dev->struct_mutex); |
4100 | mutex_lock(&dev->struct_mutex); |
4059 | if (dev_priv->ums.mm_suspended) |
- | |
4060 | goto err; |
- | |
4061 | - | ||
4062 | ret = i915_gpu_idle(dev); |
4101 | ret = i915_gpu_idle(dev); |
4063 | if (ret) |
4102 | if (ret) |
4064 | goto err; |
4103 | goto err; |
4065 | 4104 | ||
4066 | i915_gem_retire_requests(dev); |
4105 | i915_gem_retire_requests(dev); |
4067 | 4106 | ||
4068 | /* Under UMS, be paranoid and evict. */ |
4107 | /* Under UMS, be paranoid and evict. */ |
4069 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4108 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4070 | i915_gem_evict_everything(dev); |
4109 | i915_gem_evict_everything(dev); |
4071 | - | ||
4072 | i915_kernel_lost_context(dev); |
4110 | |
4073 | i915_gem_stop_ringbuffers(dev); |
- | |
4074 | - | ||
4075 | /* Hack! Don't let anybody do execbuf while we don't control the chip. |
- | |
4076 | * We need to replace this with a semaphore, or something. |
- | |
4077 | * And not confound ums.mm_suspended! |
- | |
4078 | */ |
- | |
4079 | dev_priv->ums.mm_suspended = !drm_core_check_feature(dev, |
- | |
4080 | DRIVER_MODESET); |
4111 | i915_gem_stop_ringbuffers(dev); |
4081 | mutex_unlock(&dev->struct_mutex); |
4112 | mutex_unlock(&dev->struct_mutex); |
4082 | 4113 | ||
4083 | del_timer_sync(&dev_priv->gpu_error.hangcheck_timer); |
4114 | del_timer_sync(&dev_priv->gpu_error.hangcheck_timer); |
4084 | cancel_delayed_work_sync(&dev_priv->mm.retire_work); |
4115 | cancel_delayed_work_sync(&dev_priv->mm.retire_work); |
4085 | flush_delayed_work(&dev_priv->mm.idle_work); |
4116 | flush_delayed_work(&dev_priv->mm.idle_work); |
4086 | 4117 | ||
4087 | return 0; |
4118 | return 0; |
4088 | 4119 | ||
4089 | err: |
4120 | err: |
4090 | mutex_unlock(&dev->struct_mutex); |
4121 | mutex_unlock(&dev->struct_mutex); |
4091 | return ret; |
4122 | return ret; |
4092 | } |
4123 | } |
4093 | #endif |
4124 | #endif |
4094 | 4125 | ||
4095 | int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice) |
4126 | int i915_gem_l3_remap(struct intel_engine_cs *ring, int slice) |
4096 | { |
4127 | { |
4097 | struct drm_device *dev = ring->dev; |
4128 | struct drm_device *dev = ring->dev; |
4098 | struct drm_i915_private *dev_priv = dev->dev_private; |
4129 | struct drm_i915_private *dev_priv = dev->dev_private; |
4099 | u32 reg_base = GEN7_L3LOG_BASE + (slice * 0x200); |
4130 | u32 reg_base = GEN7_L3LOG_BASE + (slice * 0x200); |
4100 | u32 *remap_info = dev_priv->l3_parity.remap_info[slice]; |
4131 | u32 *remap_info = dev_priv->l3_parity.remap_info[slice]; |
4101 | int i, ret; |
4132 | int i, ret; |
4102 | 4133 | ||
4103 | if (!HAS_L3_DPF(dev) || !remap_info) |
4134 | if (!HAS_L3_DPF(dev) || !remap_info) |
4104 | return 0; |
4135 | return 0; |
4105 | 4136 | ||
4106 | ret = intel_ring_begin(ring, GEN7_L3LOG_SIZE / 4 * 3); |
4137 | ret = intel_ring_begin(ring, GEN7_L3LOG_SIZE / 4 * 3); |
4107 | if (ret) |
4138 | if (ret) |
4108 | return ret; |
4139 | return ret; |
4109 | 4140 | ||
4110 | /* |
4141 | /* |
4111 | * Note: We do not worry about the concurrent register cacheline hang |
4142 | * Note: We do not worry about the concurrent register cacheline hang |
4112 | * here because no other code should access these registers other than |
4143 | * here because no other code should access these registers other than |
4113 | * at initialization time. |
4144 | * at initialization time. |
4114 | */ |
4145 | */ |
4115 | for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) { |
4146 | for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) { |
4116 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); |
4147 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); |
4117 | intel_ring_emit(ring, reg_base + i); |
4148 | intel_ring_emit(ring, reg_base + i); |
4118 | intel_ring_emit(ring, remap_info[i/4]); |
4149 | intel_ring_emit(ring, remap_info[i/4]); |
4119 | } |
4150 | } |
4120 | 4151 | ||
4121 | intel_ring_advance(ring); |
4152 | intel_ring_advance(ring); |
4122 | 4153 | ||
4123 | return ret; |
4154 | return ret; |
4124 | } |
4155 | } |
4125 | 4156 | ||
4126 | void i915_gem_init_swizzling(struct drm_device *dev) |
4157 | void i915_gem_init_swizzling(struct drm_device *dev) |
4127 | { |
4158 | { |
4128 | struct drm_i915_private *dev_priv = dev->dev_private; |
4159 | struct drm_i915_private *dev_priv = dev->dev_private; |
4129 | 4160 | ||
4130 | if (INTEL_INFO(dev)->gen < 5 || |
4161 | if (INTEL_INFO(dev)->gen < 5 || |
4131 | dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE) |
4162 | dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE) |
4132 | return; |
4163 | return; |
4133 | 4164 | ||
4134 | I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | |
4165 | I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | |
4135 | DISP_TILE_SURFACE_SWIZZLING); |
4166 | DISP_TILE_SURFACE_SWIZZLING); |
4136 | 4167 | ||
4137 | if (IS_GEN5(dev)) |
4168 | if (IS_GEN5(dev)) |
4138 | return; |
4169 | return; |
4139 | 4170 | ||
4140 | I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL); |
4171 | I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL); |
4141 | if (IS_GEN6(dev)) |
4172 | if (IS_GEN6(dev)) |
4142 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB)); |
4173 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB)); |
4143 | else if (IS_GEN7(dev)) |
4174 | else if (IS_GEN7(dev)) |
4144 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB)); |
4175 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB)); |
4145 | else if (IS_GEN8(dev)) |
4176 | else if (IS_GEN8(dev)) |
4146 | I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_BDW)); |
4177 | I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_BDW)); |
4147 | else |
4178 | else |
4148 | BUG(); |
4179 | BUG(); |
4149 | } |
4180 | } |
4150 | 4181 | ||
4151 | static bool |
4182 | static bool |
4152 | intel_enable_blt(struct drm_device *dev) |
4183 | intel_enable_blt(struct drm_device *dev) |
4153 | { |
4184 | { |
4154 | if (!HAS_BLT(dev)) |
4185 | if (!HAS_BLT(dev)) |
4155 | return false; |
4186 | return false; |
4156 | 4187 | ||
4157 | /* The blitter was dysfunctional on early prototypes */ |
4188 | /* The blitter was dysfunctional on early prototypes */ |
4158 | if (IS_GEN6(dev) && dev->pdev->revision < 8) { |
4189 | if (IS_GEN6(dev) && dev->pdev->revision < 8) { |
4159 | DRM_INFO("BLT not supported on this pre-production hardware;" |
4190 | DRM_INFO("BLT not supported on this pre-production hardware;" |
4160 | " graphics performance will be degraded.\n"); |
4191 | " graphics performance will be degraded.\n"); |
4161 | return false; |
4192 | return false; |
4162 | } |
4193 | } |
4163 | 4194 | ||
4164 | return true; |
4195 | return true; |
4165 | } |
4196 | } |
- | 4197 | ||
- | 4198 | static void init_unused_ring(struct drm_device *dev, u32 base) |
|
- | 4199 | { |
|
- | 4200 | struct drm_i915_private *dev_priv = dev->dev_private; |
|
- | 4201 | ||
- | 4202 | I915_WRITE(RING_CTL(base), 0); |
|
- | 4203 | I915_WRITE(RING_HEAD(base), 0); |
|
- | 4204 | I915_WRITE(RING_TAIL(base), 0); |
|
- | 4205 | I915_WRITE(RING_START(base), 0); |
|
- | 4206 | } |
|
- | 4207 | ||
- | 4208 | static void init_unused_rings(struct drm_device *dev) |
|
- | 4209 | { |
|
- | 4210 | if (IS_I830(dev)) { |
|
- | 4211 | init_unused_ring(dev, PRB1_BASE); |
|
- | 4212 | init_unused_ring(dev, SRB0_BASE); |
|
- | 4213 | init_unused_ring(dev, SRB1_BASE); |
|
- | 4214 | init_unused_ring(dev, SRB2_BASE); |
|
- | 4215 | init_unused_ring(dev, SRB3_BASE); |
|
- | 4216 | } else if (IS_GEN2(dev)) { |
|
- | 4217 | init_unused_ring(dev, SRB0_BASE); |
|
- | 4218 | init_unused_ring(dev, SRB1_BASE); |
|
- | 4219 | } else if (IS_GEN3(dev)) { |
|
- | 4220 | init_unused_ring(dev, PRB1_BASE); |
|
- | 4221 | init_unused_ring(dev, PRB2_BASE); |
|
- | 4222 | } |
|
- | 4223 | } |
|
4166 | 4224 | ||
4167 | static int i915_gem_init_rings(struct drm_device *dev) |
4225 | int i915_gem_init_rings(struct drm_device *dev) |
4168 | { |
4226 | { |
4169 | struct drm_i915_private *dev_priv = dev->dev_private; |
4227 | struct drm_i915_private *dev_priv = dev->dev_private; |
4170 | int ret; |
4228 | int ret; |
- | 4229 | ||
- | 4230 | /* |
|
- | 4231 | * At least 830 can leave some of the unused rings |
|
- | 4232 | * "active" (ie. head != tail) after resume which |
|
- | 4233 | * will prevent c3 entry. Makes sure all unused rings |
|
- | 4234 | * are totally idle. |
|
- | 4235 | */ |
|
- | 4236 | init_unused_rings(dev); |
|
4171 | 4237 | ||
4172 | ret = intel_init_render_ring_buffer(dev); |
4238 | ret = intel_init_render_ring_buffer(dev); |
4173 | if (ret) |
4239 | if (ret) |
4174 | return ret; |
4240 | return ret; |
4175 | 4241 | ||
4176 | if (HAS_BSD(dev)) { |
4242 | if (HAS_BSD(dev)) { |
4177 | ret = intel_init_bsd_ring_buffer(dev); |
4243 | ret = intel_init_bsd_ring_buffer(dev); |
4178 | if (ret) |
4244 | if (ret) |
4179 | goto cleanup_render_ring; |
4245 | goto cleanup_render_ring; |
4180 | } |
4246 | } |
4181 | 4247 | ||
4182 | if (intel_enable_blt(dev)) { |
4248 | if (intel_enable_blt(dev)) { |
4183 | ret = intel_init_blt_ring_buffer(dev); |
4249 | ret = intel_init_blt_ring_buffer(dev); |
4184 | if (ret) |
4250 | if (ret) |
4185 | goto cleanup_bsd_ring; |
4251 | goto cleanup_bsd_ring; |
4186 | } |
4252 | } |
4187 | 4253 | ||
4188 | if (HAS_VEBOX(dev)) { |
4254 | if (HAS_VEBOX(dev)) { |
4189 | ret = intel_init_vebox_ring_buffer(dev); |
4255 | ret = intel_init_vebox_ring_buffer(dev); |
4190 | if (ret) |
4256 | if (ret) |
4191 | goto cleanup_blt_ring; |
4257 | goto cleanup_blt_ring; |
4192 | } |
4258 | } |
4193 | 4259 | ||
4194 | if (HAS_BSD2(dev)) { |
4260 | if (HAS_BSD2(dev)) { |
4195 | ret = intel_init_bsd2_ring_buffer(dev); |
4261 | ret = intel_init_bsd2_ring_buffer(dev); |
4196 | if (ret) |
4262 | if (ret) |
4197 | goto cleanup_vebox_ring; |
4263 | goto cleanup_vebox_ring; |
4198 | } |
4264 | } |
4199 | 4265 | ||
4200 | ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000)); |
4266 | ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000)); |
4201 | if (ret) |
4267 | if (ret) |
4202 | goto cleanup_bsd2_ring; |
4268 | goto cleanup_bsd2_ring; |
4203 | 4269 | ||
4204 | return 0; |
4270 | return 0; |
4205 | 4271 | ||
4206 | cleanup_bsd2_ring: |
4272 | cleanup_bsd2_ring: |
4207 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS2]); |
4273 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS2]); |
4208 | cleanup_vebox_ring: |
4274 | cleanup_vebox_ring: |
4209 | intel_cleanup_ring_buffer(&dev_priv->ring[VECS]); |
4275 | intel_cleanup_ring_buffer(&dev_priv->ring[VECS]); |
4210 | cleanup_blt_ring: |
4276 | cleanup_blt_ring: |
4211 | intel_cleanup_ring_buffer(&dev_priv->ring[BCS]); |
4277 | intel_cleanup_ring_buffer(&dev_priv->ring[BCS]); |
4212 | cleanup_bsd_ring: |
4278 | cleanup_bsd_ring: |
4213 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS]); |
4279 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS]); |
4214 | cleanup_render_ring: |
4280 | cleanup_render_ring: |
4215 | intel_cleanup_ring_buffer(&dev_priv->ring[RCS]); |
4281 | intel_cleanup_ring_buffer(&dev_priv->ring[RCS]); |
4216 | 4282 | ||
4217 | return ret; |
4283 | return ret; |
4218 | } |
4284 | } |
4219 | 4285 | ||
4220 | int |
4286 | int |
4221 | i915_gem_init_hw(struct drm_device *dev) |
4287 | i915_gem_init_hw(struct drm_device *dev) |
4222 | { |
4288 | { |
4223 | struct drm_i915_private *dev_priv = dev->dev_private; |
4289 | struct drm_i915_private *dev_priv = dev->dev_private; |
4224 | int ret, i; |
4290 | int ret, i; |
4225 | 4291 | ||
4226 | if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) |
4292 | if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) |
4227 | return -EIO; |
4293 | return -EIO; |
4228 | 4294 | ||
4229 | if (dev_priv->ellc_size) |
4295 | if (dev_priv->ellc_size) |
4230 | I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf)); |
4296 | I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf)); |
4231 | 4297 | ||
4232 | if (IS_HASWELL(dev)) |
4298 | if (IS_HASWELL(dev)) |
4233 | I915_WRITE(MI_PREDICATE_RESULT_2, IS_HSW_GT3(dev) ? |
4299 | I915_WRITE(MI_PREDICATE_RESULT_2, IS_HSW_GT3(dev) ? |
4234 | LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED); |
4300 | LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED); |
4235 | 4301 | ||
4236 | if (HAS_PCH_NOP(dev)) { |
4302 | if (HAS_PCH_NOP(dev)) { |
4237 | if (IS_IVYBRIDGE(dev)) { |
4303 | if (IS_IVYBRIDGE(dev)) { |
4238 | u32 temp = I915_READ(GEN7_MSG_CTL); |
4304 | u32 temp = I915_READ(GEN7_MSG_CTL); |
4239 | temp &= ~(WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK); |
4305 | temp &= ~(WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK); |
4240 | I915_WRITE(GEN7_MSG_CTL, temp); |
4306 | I915_WRITE(GEN7_MSG_CTL, temp); |
4241 | } else if (INTEL_INFO(dev)->gen >= 7) { |
4307 | } else if (INTEL_INFO(dev)->gen >= 7) { |
4242 | u32 temp = I915_READ(HSW_NDE_RSTWRN_OPT); |
4308 | u32 temp = I915_READ(HSW_NDE_RSTWRN_OPT); |
4243 | temp &= ~RESET_PCH_HANDSHAKE_ENABLE; |
4309 | temp &= ~RESET_PCH_HANDSHAKE_ENABLE; |
4244 | I915_WRITE(HSW_NDE_RSTWRN_OPT, temp); |
4310 | I915_WRITE(HSW_NDE_RSTWRN_OPT, temp); |
4245 | } |
4311 | } |
4246 | } |
4312 | } |
4247 | 4313 | ||
4248 | i915_gem_init_swizzling(dev); |
4314 | i915_gem_init_swizzling(dev); |
4249 | 4315 | ||
4250 | ret = i915_gem_init_rings(dev); |
4316 | ret = dev_priv->gt.init_rings(dev); |
4251 | if (ret) |
4317 | if (ret) |
4252 | return ret; |
4318 | return ret; |
4253 | 4319 | ||
4254 | for (i = 0; i < NUM_L3_SLICES(dev); i++) |
4320 | for (i = 0; i < NUM_L3_SLICES(dev); i++) |
4255 | i915_gem_l3_remap(&dev_priv->ring[RCS], i); |
4321 | i915_gem_l3_remap(&dev_priv->ring[RCS], i); |
4256 | 4322 | ||
4257 | /* |
4323 | /* |
4258 | * XXX: Contexts should only be initialized once. Doing a switch to the |
4324 | * XXX: Contexts should only be initialized once. Doing a switch to the |
4259 | * default context switch however is something we'd like to do after |
4325 | * default context switch however is something we'd like to do after |
4260 | * reset or thaw (the latter may not actually be necessary for HW, but |
4326 | * reset or thaw (the latter may not actually be necessary for HW, but |
4261 | * goes with our code better). Context switching requires rings (for |
4327 | * goes with our code better). Context switching requires rings (for |
4262 | * the do_switch), but before enabling PPGTT. So don't move this. |
4328 | * the do_switch), but before enabling PPGTT. So don't move this. |
4263 | */ |
4329 | */ |
4264 | ret = i915_gem_context_enable(dev_priv); |
4330 | ret = i915_gem_context_enable(dev_priv); |
4265 | if (ret && ret != -EIO) { |
4331 | if (ret && ret != -EIO) { |
4266 | DRM_ERROR("Context enable failed %d\n", ret); |
4332 | DRM_ERROR("Context enable failed %d\n", ret); |
4267 | i915_gem_cleanup_ringbuffer(dev); |
4333 | i915_gem_cleanup_ringbuffer(dev); |
- | 4334 | ||
- | 4335 | return ret; |
|
- | 4336 | } |
|
- | 4337 | ||
- | 4338 | ret = i915_ppgtt_init_hw(dev); |
|
- | 4339 | if (ret && ret != -EIO) { |
|
- | 4340 | DRM_ERROR("PPGTT enable failed %d\n", ret); |
|
- | 4341 | i915_gem_cleanup_ringbuffer(dev); |
|
4268 | } |
4342 | } |
4269 | 4343 | ||
4270 | return ret; |
4344 | return ret; |
4271 | } |
4345 | } |
4272 | 4346 | ||
4273 | int i915_gem_init(struct drm_device *dev) |
4347 | int i915_gem_init(struct drm_device *dev) |
4274 | { |
4348 | { |
4275 | struct drm_i915_private *dev_priv = dev->dev_private; |
4349 | struct drm_i915_private *dev_priv = dev->dev_private; |
4276 | int ret; |
4350 | int ret; |
- | 4351 | ||
- | 4352 | i915.enable_execlists = intel_sanitize_enable_execlists(dev, |
|
- | 4353 | i915.enable_execlists); |
|
4277 | 4354 | ||
4278 | mutex_lock(&dev->struct_mutex); |
4355 | mutex_lock(&dev->struct_mutex); |
4279 | 4356 | ||
4280 | if (IS_VALLEYVIEW(dev)) { |
4357 | if (IS_VALLEYVIEW(dev)) { |
4281 | /* VLVA0 (potential hack), BIOS isn't actually waking us */ |
4358 | /* VLVA0 (potential hack), BIOS isn't actually waking us */ |
4282 | I915_WRITE(VLV_GTLC_WAKE_CTRL, VLV_GTLC_ALLOWWAKEREQ); |
4359 | I915_WRITE(VLV_GTLC_WAKE_CTRL, VLV_GTLC_ALLOWWAKEREQ); |
4283 | if (wait_for((I915_READ(VLV_GTLC_PW_STATUS) & |
4360 | if (wait_for((I915_READ(VLV_GTLC_PW_STATUS) & |
4284 | VLV_GTLC_ALLOWWAKEACK), 10)) |
4361 | VLV_GTLC_ALLOWWAKEACK), 10)) |
4285 | DRM_DEBUG_DRIVER("allow wake ack timed out\n"); |
4362 | DRM_DEBUG_DRIVER("allow wake ack timed out\n"); |
4286 | } |
4363 | } |
- | 4364 | ||
- | 4365 | if (!i915.enable_execlists) { |
|
- | 4366 | dev_priv->gt.do_execbuf = i915_gem_ringbuffer_submission; |
|
- | 4367 | dev_priv->gt.init_rings = i915_gem_init_rings; |
|
- | 4368 | dev_priv->gt.cleanup_ring = intel_cleanup_ring_buffer; |
|
- | 4369 | dev_priv->gt.stop_ring = intel_stop_ring_buffer; |
|
- | 4370 | } else { |
|
- | 4371 | dev_priv->gt.do_execbuf = intel_execlists_submission; |
|
- | 4372 | dev_priv->gt.init_rings = intel_logical_rings_init; |
|
- | 4373 | dev_priv->gt.cleanup_ring = intel_logical_ring_cleanup; |
|
- | 4374 | dev_priv->gt.stop_ring = intel_logical_ring_stop; |
|
- | 4375 | } |
|
- | 4376 | ||
- | 4377 | // ret = i915_gem_init_userptr(dev); |
|
- | 4378 | // if (ret) { |
|
- | 4379 | // mutex_unlock(&dev->struct_mutex); |
|
- | 4380 | // return ret; |
|
- | 4381 | // } |
|
4287 | 4382 | ||
4288 | i915_gem_init_global_gtt(dev); |
4383 | i915_gem_init_global_gtt(dev); |
4289 | 4384 | ||
4290 | ret = i915_gem_context_init(dev); |
4385 | ret = i915_gem_context_init(dev); |
4291 | if (ret) { |
4386 | if (ret) { |
4292 | mutex_unlock(&dev->struct_mutex); |
4387 | mutex_unlock(&dev->struct_mutex); |
4293 | return ret; |
4388 | return ret; |
4294 | } |
4389 | } |
4295 | 4390 | ||
4296 | ret = i915_gem_init_hw(dev); |
4391 | ret = i915_gem_init_hw(dev); |
4297 | if (ret == -EIO) { |
4392 | if (ret == -EIO) { |
4298 | /* Allow ring initialisation to fail by marking the GPU as |
4393 | /* Allow ring initialisation to fail by marking the GPU as |
4299 | * wedged. But we only want to do this where the GPU is angry, |
4394 | * wedged. But we only want to do this where the GPU is angry, |
4300 | * for all other failure, such as an allocation failure, bail. |
4395 | * for all other failure, such as an allocation failure, bail. |
4301 | */ |
4396 | */ |
4302 | DRM_ERROR("Failed to initialize GPU, declaring it wedged\n"); |
4397 | DRM_ERROR("Failed to initialize GPU, declaring it wedged\n"); |
4303 | atomic_set_mask(I915_WEDGED, &dev_priv->gpu_error.reset_counter); |
4398 | atomic_set_mask(I915_WEDGED, &dev_priv->gpu_error.reset_counter); |
4304 | ret = 0; |
4399 | ret = 0; |
4305 | } |
4400 | } |
4306 | mutex_unlock(&dev->struct_mutex); |
4401 | mutex_unlock(&dev->struct_mutex); |
4307 | 4402 | ||
4308 | return ret; |
4403 | return ret; |
4309 | } |
4404 | } |
4310 | 4405 | ||
4311 | void |
4406 | void |
4312 | i915_gem_cleanup_ringbuffer(struct drm_device *dev) |
4407 | i915_gem_cleanup_ringbuffer(struct drm_device *dev) |
4313 | { |
4408 | { |
4314 | struct drm_i915_private *dev_priv = dev->dev_private; |
4409 | struct drm_i915_private *dev_priv = dev->dev_private; |
4315 | struct intel_engine_cs *ring; |
4410 | struct intel_engine_cs *ring; |
4316 | int i; |
4411 | int i; |
4317 | 4412 | ||
4318 | for_each_ring(ring, dev_priv, i) |
4413 | for_each_ring(ring, dev_priv, i) |
4319 | intel_cleanup_ring_buffer(ring); |
4414 | dev_priv->gt.cleanup_ring(ring); |
4320 | } |
- | |
4321 | - | ||
4322 | #if 0 |
- | |
4323 | - | ||
4324 | int |
- | |
4325 | i915_gem_entervt_ioctl(struct drm_device *dev, void *data, |
- | |
4326 | struct drm_file *file_priv) |
- | |
4327 | { |
- | |
4328 | struct drm_i915_private *dev_priv = dev->dev_private; |
- | |
4329 | int ret; |
- | |
4330 | - | ||
4331 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
- | |
4332 | return 0; |
- | |
4333 | - | ||
4334 | if (i915_reset_in_progress(&dev_priv->gpu_error)) { |
- | |
4335 | DRM_ERROR("Reenabling wedged hardware, good luck\n"); |
- | |
4336 | atomic_set(&dev_priv->gpu_error.reset_counter, 0); |
- | |
4337 | } |
- | |
4338 | - | ||
4339 | mutex_lock(&dev->struct_mutex); |
- | |
4340 | dev_priv->ums.mm_suspended = 0; |
- | |
4341 | - | ||
4342 | ret = i915_gem_init_hw(dev); |
- | |
4343 | if (ret != 0) { |
- | |
4344 | mutex_unlock(&dev->struct_mutex); |
- | |
4345 | return ret; |
- | |
4346 | } |
- | |
4347 | - | ||
4348 | BUG_ON(!list_empty(&dev_priv->gtt.base.active_list)); |
- | |
4349 | - | ||
4350 | ret = drm_irq_install(dev, dev->pdev->irq); |
- | |
4351 | if (ret) |
- | |
4352 | goto cleanup_ringbuffer; |
- | |
4353 | mutex_unlock(&dev->struct_mutex); |
- | |
4354 | - | ||
4355 | return 0; |
- | |
4356 | - | ||
4357 | cleanup_ringbuffer: |
- | |
4358 | i915_gem_cleanup_ringbuffer(dev); |
- | |
4359 | dev_priv->ums.mm_suspended = 1; |
- | |
4360 | mutex_unlock(&dev->struct_mutex); |
- | |
4361 | - | ||
4362 | return ret; |
- | |
4363 | } |
4415 | } |
4364 | - | ||
4365 | int |
- | |
4366 | i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, |
- | |
4367 | struct drm_file *file_priv) |
- | |
4368 | { |
- | |
4369 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
- | |
4370 | return 0; |
- | |
4371 | - | ||
4372 | mutex_lock(&dev->struct_mutex); |
- | |
4373 | drm_irq_uninstall(dev); |
- | |
4374 | mutex_unlock(&dev->struct_mutex); |
- | |
4375 | - | ||
4376 | return i915_gem_suspend(dev); |
- | |
4377 | } |
- | |
4378 | - | ||
4379 | void |
- | |
4380 | i915_gem_lastclose(struct drm_device *dev) |
- | |
4381 | { |
- | |
4382 | int ret; |
- | |
4383 | - | ||
4384 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
- | |
4385 | return; |
- | |
4386 | - | ||
4387 | ret = i915_gem_suspend(dev); |
- | |
4388 | if (ret) |
- | |
4389 | DRM_ERROR("failed to idle hardware: %d\n", ret); |
- | |
4390 | } |
- | |
4391 | #endif |
- | |
4392 | 4416 | ||
4393 | static void |
4417 | static void |
4394 | init_ring_lists(struct intel_engine_cs *ring) |
4418 | init_ring_lists(struct intel_engine_cs *ring) |
4395 | { |
4419 | { |
4396 | INIT_LIST_HEAD(&ring->active_list); |
4420 | INIT_LIST_HEAD(&ring->active_list); |
4397 | INIT_LIST_HEAD(&ring->request_list); |
4421 | INIT_LIST_HEAD(&ring->request_list); |
4398 | } |
4422 | } |
4399 | 4423 | ||
4400 | void i915_init_vm(struct drm_i915_private *dev_priv, |
4424 | void i915_init_vm(struct drm_i915_private *dev_priv, |
4401 | struct i915_address_space *vm) |
4425 | struct i915_address_space *vm) |
4402 | { |
4426 | { |
4403 | if (!i915_is_ggtt(vm)) |
4427 | if (!i915_is_ggtt(vm)) |
4404 | drm_mm_init(&vm->mm, vm->start, vm->total); |
4428 | drm_mm_init(&vm->mm, vm->start, vm->total); |
4405 | vm->dev = dev_priv->dev; |
4429 | vm->dev = dev_priv->dev; |
4406 | INIT_LIST_HEAD(&vm->active_list); |
4430 | INIT_LIST_HEAD(&vm->active_list); |
4407 | INIT_LIST_HEAD(&vm->inactive_list); |
4431 | INIT_LIST_HEAD(&vm->inactive_list); |
4408 | INIT_LIST_HEAD(&vm->global_link); |
4432 | INIT_LIST_HEAD(&vm->global_link); |
4409 | list_add_tail(&vm->global_link, &dev_priv->vm_list); |
4433 | list_add_tail(&vm->global_link, &dev_priv->vm_list); |
4410 | } |
4434 | } |
4411 | 4435 | ||
4412 | void |
4436 | void |
4413 | i915_gem_load(struct drm_device *dev) |
4437 | i915_gem_load(struct drm_device *dev) |
4414 | { |
4438 | { |
4415 | struct drm_i915_private *dev_priv = dev->dev_private; |
4439 | struct drm_i915_private *dev_priv = dev->dev_private; |
4416 | int i; |
4440 | int i; |
4417 | 4441 | ||
4418 | INIT_LIST_HEAD(&dev_priv->vm_list); |
4442 | INIT_LIST_HEAD(&dev_priv->vm_list); |
4419 | i915_init_vm(dev_priv, &dev_priv->gtt.base); |
4443 | i915_init_vm(dev_priv, &dev_priv->gtt.base); |
4420 | 4444 | ||
4421 | INIT_LIST_HEAD(&dev_priv->context_list); |
4445 | INIT_LIST_HEAD(&dev_priv->context_list); |
4422 | INIT_LIST_HEAD(&dev_priv->mm.unbound_list); |
4446 | INIT_LIST_HEAD(&dev_priv->mm.unbound_list); |
4423 | INIT_LIST_HEAD(&dev_priv->mm.bound_list); |
4447 | INIT_LIST_HEAD(&dev_priv->mm.bound_list); |
4424 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4448 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4425 | for (i = 0; i < I915_NUM_RINGS; i++) |
4449 | for (i = 0; i < I915_NUM_RINGS; i++) |
4426 | init_ring_lists(&dev_priv->ring[i]); |
4450 | init_ring_lists(&dev_priv->ring[i]); |
4427 | for (i = 0; i < I915_MAX_NUM_FENCES; i++) |
4451 | for (i = 0; i < I915_MAX_NUM_FENCES; i++) |
4428 | INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list); |
4452 | INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list); |
4429 | INIT_DELAYED_WORK(&dev_priv->mm.retire_work, |
4453 | INIT_DELAYED_WORK(&dev_priv->mm.retire_work, |
4430 | i915_gem_retire_work_handler); |
4454 | i915_gem_retire_work_handler); |
4431 | INIT_DELAYED_WORK(&dev_priv->mm.idle_work, |
4455 | INIT_DELAYED_WORK(&dev_priv->mm.idle_work, |
4432 | i915_gem_idle_work_handler); |
4456 | i915_gem_idle_work_handler); |
4433 | init_waitqueue_head(&dev_priv->gpu_error.reset_queue); |
4457 | init_waitqueue_head(&dev_priv->gpu_error.reset_queue); |
4434 | 4458 | ||
4435 | /* On GEN3 we really need to make sure the ARB C3 LP bit is set */ |
4459 | /* On GEN3 we really need to make sure the ARB C3 LP bit is set */ |
4436 | if (IS_GEN3(dev)) { |
4460 | if (!drm_core_check_feature(dev, DRIVER_MODESET) && IS_GEN3(dev)) { |
4437 | I915_WRITE(MI_ARB_STATE, |
4461 | I915_WRITE(MI_ARB_STATE, |
4438 | _MASKED_BIT_ENABLE(MI_ARB_C3_LP_WRITE_ENABLE)); |
4462 | _MASKED_BIT_ENABLE(MI_ARB_C3_LP_WRITE_ENABLE)); |
4439 | } |
4463 | } |
4440 | 4464 | ||
4441 | dev_priv->relative_constants_mode = I915_EXEC_CONSTANTS_REL_GENERAL; |
4465 | dev_priv->relative_constants_mode = I915_EXEC_CONSTANTS_REL_GENERAL; |
- | 4466 | ||
- | 4467 | /* Old X drivers will take 0-2 for front, back, depth buffers */ |
|
- | 4468 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
|
- | 4469 | dev_priv->fence_reg_start = 3; |
|
4442 | 4470 | ||
4443 | if (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev)) |
4471 | if (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev)) |
4444 | dev_priv->num_fence_regs = 32; |
4472 | dev_priv->num_fence_regs = 32; |
4445 | else if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
4473 | else if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
4446 | dev_priv->num_fence_regs = 16; |
4474 | dev_priv->num_fence_regs = 16; |
4447 | else |
4475 | else |
4448 | dev_priv->num_fence_regs = 8; |
4476 | dev_priv->num_fence_regs = 8; |
4449 | 4477 | ||
4450 | /* Initialize fence registers to zero */ |
4478 | /* Initialize fence registers to zero */ |
4451 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4479 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4452 | i915_gem_restore_fences(dev); |
4480 | i915_gem_restore_fences(dev); |
4453 | 4481 | ||
4454 | i915_gem_detect_bit_6_swizzle(dev); |
4482 | i915_gem_detect_bit_6_swizzle(dev); |
4455 | 4483 | ||
4456 | dev_priv->mm.interruptible = true; |
4484 | dev_priv->mm.interruptible = true; |
4457 | 4485 | ||
4458 | mutex_init(&dev_priv->fb_tracking.lock); |
4486 | mutex_init(&dev_priv->fb_tracking.lock); |
4459 | } |
4487 | } |
4460 | 4488 | ||
4461 | int i915_gem_open(struct drm_device *dev, struct drm_file *file) |
4489 | int i915_gem_open(struct drm_device *dev, struct drm_file *file) |
4462 | { |
4490 | { |
4463 | struct drm_i915_file_private *file_priv; |
4491 | struct drm_i915_file_private *file_priv; |
4464 | int ret; |
4492 | int ret; |
4465 | 4493 | ||
4466 | DRM_DEBUG_DRIVER("\n"); |
4494 | DRM_DEBUG_DRIVER("\n"); |
4467 | 4495 | ||
4468 | file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
4496 | file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
4469 | if (!file_priv) |
4497 | if (!file_priv) |
4470 | return -ENOMEM; |
4498 | return -ENOMEM; |
4471 | 4499 | ||
4472 | file->driver_priv = file_priv; |
4500 | file->driver_priv = file_priv; |
4473 | file_priv->dev_priv = dev->dev_private; |
4501 | file_priv->dev_priv = dev->dev_private; |
4474 | file_priv->file = file; |
4502 | file_priv->file = file; |
4475 | 4503 | ||
4476 | spin_lock_init(&file_priv->mm.lock); |
4504 | spin_lock_init(&file_priv->mm.lock); |
4477 | INIT_LIST_HEAD(&file_priv->mm.request_list); |
4505 | INIT_LIST_HEAD(&file_priv->mm.request_list); |
4478 | // INIT_DELAYED_WORK(&file_priv->mm.idle_work, |
4506 | // INIT_DELAYED_WORK(&file_priv->mm.idle_work, |
4479 | // i915_gem_file_idle_work_handler); |
4507 | // i915_gem_file_idle_work_handler); |
4480 | 4508 | ||
4481 | ret = i915_gem_context_open(dev, file); |
4509 | ret = i915_gem_context_open(dev, file); |
4482 | if (ret) |
4510 | if (ret) |
4483 | kfree(file_priv); |
4511 | kfree(file_priv); |
4484 | 4512 | ||
4485 | return ret; |
4513 | return ret; |
4486 | } |
4514 | } |
- | 4515 | ||
- | 4516 | /** |
|
- | 4517 | * i915_gem_track_fb - update frontbuffer tracking |
|
- | 4518 | * old: current GEM buffer for the frontbuffer slots |
|
- | 4519 | * new: new GEM buffer for the frontbuffer slots |
|
- | 4520 | * frontbuffer_bits: bitmask of frontbuffer slots |
|
- | 4521 | * |
|
- | 4522 | * This updates the frontbuffer tracking bits @frontbuffer_bits by clearing them |
|
- | 4523 | * from @old and setting them in @new. Both @old and @new can be NULL. |
|
4487 | 4524 | */ |
|
4488 | void i915_gem_track_fb(struct drm_i915_gem_object *old, |
4525 | void i915_gem_track_fb(struct drm_i915_gem_object *old, |
4489 | struct drm_i915_gem_object *new, |
4526 | struct drm_i915_gem_object *new, |
4490 | unsigned frontbuffer_bits) |
4527 | unsigned frontbuffer_bits) |
4491 | { |
4528 | { |
4492 | if (old) { |
4529 | if (old) { |
4493 | WARN_ON(!mutex_is_locked(&old->base.dev->struct_mutex)); |
4530 | WARN_ON(!mutex_is_locked(&old->base.dev->struct_mutex)); |
4494 | WARN_ON(!(old->frontbuffer_bits & frontbuffer_bits)); |
4531 | WARN_ON(!(old->frontbuffer_bits & frontbuffer_bits)); |
4495 | old->frontbuffer_bits &= ~frontbuffer_bits; |
4532 | old->frontbuffer_bits &= ~frontbuffer_bits; |
4496 | } |
4533 | } |
4497 | 4534 | ||
4498 | if (new) { |
4535 | if (new) { |
4499 | WARN_ON(!mutex_is_locked(&new->base.dev->struct_mutex)); |
4536 | WARN_ON(!mutex_is_locked(&new->base.dev->struct_mutex)); |
4500 | WARN_ON(new->frontbuffer_bits & frontbuffer_bits); |
4537 | WARN_ON(new->frontbuffer_bits & frontbuffer_bits); |
4501 | new->frontbuffer_bits |= frontbuffer_bits; |
4538 | new->frontbuffer_bits |= frontbuffer_bits; |
4502 | } |
4539 | } |
4503 | } |
4540 | } |
4504 | 4541 | ||
4505 | static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task) |
4542 | static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task) |
4506 | { |
4543 | { |
4507 | if (!mutex_is_locked(mutex)) |
4544 | if (!mutex_is_locked(mutex)) |
4508 | return false; |
4545 | return false; |
4509 | 4546 | ||
4510 | #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES) |
4547 | #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES) |
4511 | return mutex->owner == task; |
4548 | return mutex->owner == task; |
4512 | #else |
4549 | #else |
4513 | /* Since UP may be pre-empted, we cannot assume that we own the lock */ |
4550 | /* Since UP may be pre-empted, we cannot assume that we own the lock */ |
4514 | return false; |
4551 | return false; |
4515 | #endif |
4552 | #endif |
4516 | } |
4553 | } |
4517 | 4554 | ||
4518 | /* All the new VM stuff */ |
4555 | /* All the new VM stuff */ |
4519 | unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o, |
4556 | unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o, |
4520 | struct i915_address_space *vm) |
4557 | struct i915_address_space *vm) |
4521 | { |
4558 | { |
4522 | struct drm_i915_private *dev_priv = o->base.dev->dev_private; |
4559 | struct drm_i915_private *dev_priv = o->base.dev->dev_private; |
4523 | struct i915_vma *vma; |
4560 | struct i915_vma *vma; |
4524 | - | ||
4525 | if (!dev_priv->mm.aliasing_ppgtt || |
4561 | |
4526 | vm == &dev_priv->mm.aliasing_ppgtt->base) |
- | |
4527 | vm = &dev_priv->gtt.base; |
4562 | WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base); |
4528 | 4563 | ||
4529 | list_for_each_entry(vma, &o->vma_list, vma_link) { |
4564 | list_for_each_entry(vma, &o->vma_list, vma_link) { |
4530 | if (vma->vm == vm) |
4565 | if (vma->vm == vm) |
4531 | return vma->node.start; |
4566 | return vma->node.start; |
4532 | 4567 | ||
4533 | } |
4568 | } |
4534 | WARN(1, "%s vma for this object not found.\n", |
4569 | WARN(1, "%s vma for this object not found.\n", |
4535 | i915_is_ggtt(vm) ? "global" : "ppgtt"); |
4570 | i915_is_ggtt(vm) ? "global" : "ppgtt"); |
4536 | return -1; |
4571 | return -1; |
4537 | } |
4572 | } |
4538 | 4573 | ||
4539 | bool i915_gem_obj_bound(struct drm_i915_gem_object *o, |
4574 | bool i915_gem_obj_bound(struct drm_i915_gem_object *o, |
4540 | struct i915_address_space *vm) |
4575 | struct i915_address_space *vm) |
4541 | { |
4576 | { |
4542 | struct i915_vma *vma; |
4577 | struct i915_vma *vma; |
4543 | 4578 | ||
4544 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4579 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4545 | if (vma->vm == vm && drm_mm_node_allocated(&vma->node)) |
4580 | if (vma->vm == vm && drm_mm_node_allocated(&vma->node)) |
4546 | return true; |
4581 | return true; |
4547 | 4582 | ||
4548 | return false; |
4583 | return false; |
4549 | } |
4584 | } |
4550 | 4585 | ||
4551 | bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o) |
4586 | bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o) |
4552 | { |
4587 | { |
4553 | struct i915_vma *vma; |
4588 | struct i915_vma *vma; |
4554 | 4589 | ||
4555 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4590 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4556 | if (drm_mm_node_allocated(&vma->node)) |
4591 | if (drm_mm_node_allocated(&vma->node)) |
4557 | return true; |
4592 | return true; |
4558 | 4593 | ||
4559 | return false; |
4594 | return false; |
4560 | } |
4595 | } |
4561 | 4596 | ||
4562 | unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o, |
4597 | unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o, |
4563 | struct i915_address_space *vm) |
4598 | struct i915_address_space *vm) |
4564 | { |
4599 | { |
4565 | struct drm_i915_private *dev_priv = o->base.dev->dev_private; |
4600 | struct drm_i915_private *dev_priv = o->base.dev->dev_private; |
4566 | struct i915_vma *vma; |
4601 | struct i915_vma *vma; |
4567 | - | ||
4568 | if (!dev_priv->mm.aliasing_ppgtt || |
4602 | |
4569 | vm == &dev_priv->mm.aliasing_ppgtt->base) |
- | |
4570 | vm = &dev_priv->gtt.base; |
4603 | WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base); |
4571 | 4604 | ||
4572 | BUG_ON(list_empty(&o->vma_list)); |
4605 | BUG_ON(list_empty(&o->vma_list)); |
4573 | 4606 | ||
4574 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4607 | list_for_each_entry(vma, &o->vma_list, vma_link) |
4575 | if (vma->vm == vm) |
4608 | if (vma->vm == vm) |
4576 | return vma->node.size; |
4609 | return vma->node.size; |
4577 | 4610 | ||
4578 | return 0; |
4611 | return 0; |
4579 | } |
4612 | } |
4580 | 4613 | ||
4581 | 4614 | ||
4582 | 4615 | ||
4583 | struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj) |
4616 | struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj) |
4584 | { |
4617 | { |
4585 | struct i915_vma *vma; |
4618 | struct i915_vma *vma; |
4586 | - | ||
4587 | /* This WARN has probably outlived its usefulness (callers already |
- | |
4588 | * WARN if they don't find the GGTT vma they expect). When removing, |
- | |
4589 | * remember to remove the pre-check in is_pin_display() as well */ |
- | |
4590 | if (WARN_ON(list_empty(&obj->vma_list))) |
- | |
4591 | return NULL; |
- | |
4592 | 4619 | ||
4593 | vma = list_first_entry(&obj->vma_list, typeof(*vma), vma_link); |
4620 | vma = list_first_entry(&obj->vma_list, typeof(*vma), vma_link); |
4594 | if (vma->vm != obj_to_ggtt(obj)) |
4621 | if (vma->vm != i915_obj_to_ggtt(obj)) |
4595 | return NULL; |
4622 | return NULL; |
4596 | 4623 | ||
4597 | return vma; |
4624 | return vma; |
4598 | }>>>>>>>><>=>>>= |
4625 | }>>>>>>>><>=>= |
4599 | >>><>><>>><>><>><>><>><>=>=>=0>>=>>>>=><=>>><>=>><>=>> |
4626 | >>>>><>><>>><>><>><>><>><>=>=>=0>>=>>>>=><=>>><>=>><>=>> |