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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 "i915_drv.h" |
30 | #include "i915_drv.h" |
31 | #include "i915_trace.h" |
31 | #include "i915_trace.h" |
32 | #include "intel_drv.h" |
32 | #include "intel_drv.h" |
33 | #include |
33 | #include |
34 | #include |
34 | #include |
35 | //#include |
35 | //#include |
- | 36 | #include |
|
36 | #include |
37 | #include |
37 | 38 | ||
38 | extern int x86_clflush_size; |
39 | extern int x86_clflush_size; |
39 | 40 | ||
40 | #define PROT_READ 0x1 /* page can be read */ |
41 | #define PROT_READ 0x1 /* page can be read */ |
41 | #define PROT_WRITE 0x2 /* page can be written */ |
42 | #define PROT_WRITE 0x2 /* page can be written */ |
42 | #define MAP_SHARED 0x01 /* Share changes */ |
43 | #define MAP_SHARED 0x01 /* Share changes */ |
43 | 44 | ||
44 | #undef mb |
45 | #undef mb |
45 | #undef rmb |
46 | #undef rmb |
46 | #undef wmb |
47 | #undef wmb |
47 | #define mb() asm volatile("mfence") |
48 | #define mb() asm volatile("mfence") |
48 | #define rmb() asm volatile ("lfence") |
49 | #define rmb() asm volatile ("lfence") |
49 | #define wmb() asm volatile ("sfence") |
50 | #define wmb() asm volatile ("sfence") |
50 | 51 | ||
51 | struct drm_i915_gem_object *get_fb_obj(); |
52 | struct drm_i915_gem_object *get_fb_obj(); |
52 | 53 | ||
53 | unsigned long vm_mmap(struct file *file, unsigned long addr, |
54 | unsigned long vm_mmap(struct file *file, unsigned long addr, |
54 | unsigned long len, unsigned long prot, |
55 | unsigned long len, unsigned long prot, |
55 | unsigned long flag, unsigned long offset); |
56 | unsigned long flag, unsigned long offset); |
56 | 57 | ||
57 | static inline void clflush(volatile void *__p) |
58 | static inline void clflush(volatile void *__p) |
58 | { |
59 | { |
59 | asm volatile("clflush %0" : "+m" (*(volatile char*)__p)); |
60 | asm volatile("clflush %0" : "+m" (*(volatile char*)__p)); |
60 | } |
61 | } |
61 | 62 | ||
62 | #define MAX_ERRNO 4095 |
63 | #define MAX_ERRNO 4095 |
63 | 64 | ||
64 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
65 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) |
65 | 66 | ||
66 | 67 | ||
67 | #define I915_EXEC_CONSTANTS_MASK (3<<6) |
68 | #define I915_EXEC_CONSTANTS_MASK (3<<6) |
68 | #define I915_EXEC_CONSTANTS_REL_GENERAL (0<<6) /* default */ |
69 | #define I915_EXEC_CONSTANTS_REL_GENERAL (0<<6) /* default */ |
69 | #define I915_EXEC_CONSTANTS_ABSOLUTE (1<<6) |
70 | #define I915_EXEC_CONSTANTS_ABSOLUTE (1<<6) |
70 | #define I915_EXEC_CONSTANTS_REL_SURFACE (2<<6) /* gen4/5 only */ |
71 | #define I915_EXEC_CONSTANTS_REL_SURFACE (2<<6) /* gen4/5 only */ |
71 | 72 | ||
72 | static void i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj); |
73 | static void i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj); |
73 | static void i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj); |
74 | static void i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj); |
74 | static __must_check int i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj, |
75 | static __must_check int i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj, |
75 | unsigned alignment, |
76 | unsigned alignment, |
76 | bool map_and_fenceable, |
77 | bool map_and_fenceable, |
77 | bool nonblocking); |
78 | bool nonblocking); |
78 | static int i915_gem_phys_pwrite(struct drm_device *dev, |
79 | static int i915_gem_phys_pwrite(struct drm_device *dev, |
79 | struct drm_i915_gem_object *obj, |
80 | struct drm_i915_gem_object *obj, |
80 | struct drm_i915_gem_pwrite *args, |
81 | struct drm_i915_gem_pwrite *args, |
81 | struct drm_file *file); |
82 | struct drm_file *file); |
82 | 83 | ||
83 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
84 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
84 | struct drm_i915_gem_object *obj); |
85 | struct drm_i915_gem_object *obj); |
85 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
86 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
86 | struct drm_i915_fence_reg *fence, |
87 | struct drm_i915_fence_reg *fence, |
87 | bool enable); |
88 | bool enable); |
88 | 89 | ||
89 | static long i915_gem_purge(struct drm_i915_private *dev_priv, long target); |
90 | static long i915_gem_purge(struct drm_i915_private *dev_priv, long target); |
90 | static void i915_gem_shrink_all(struct drm_i915_private *dev_priv); |
91 | static void i915_gem_shrink_all(struct drm_i915_private *dev_priv); |
91 | static void i915_gem_object_truncate(struct drm_i915_gem_object *obj); |
92 | static void i915_gem_object_truncate(struct drm_i915_gem_object *obj); |
92 | 93 | ||
93 | static inline void i915_gem_object_fence_lost(struct drm_i915_gem_object *obj) |
94 | static inline void i915_gem_object_fence_lost(struct drm_i915_gem_object *obj) |
94 | { |
95 | { |
95 | if (obj->tiling_mode) |
96 | if (obj->tiling_mode) |
96 | i915_gem_release_mmap(obj); |
97 | i915_gem_release_mmap(obj); |
97 | 98 | ||
98 | /* As we do not have an associated fence register, we will force |
99 | /* As we do not have an associated fence register, we will force |
99 | * a tiling change if we ever need to acquire one. |
100 | * a tiling change if we ever need to acquire one. |
100 | */ |
101 | */ |
101 | obj->fence_dirty = false; |
102 | obj->fence_dirty = false; |
102 | obj->fence_reg = I915_FENCE_REG_NONE; |
103 | obj->fence_reg = I915_FENCE_REG_NONE; |
103 | } |
104 | } |
104 | 105 | ||
105 | /* some bookkeeping */ |
106 | /* some bookkeeping */ |
106 | static void i915_gem_info_add_obj(struct drm_i915_private *dev_priv, |
107 | static void i915_gem_info_add_obj(struct drm_i915_private *dev_priv, |
107 | size_t size) |
108 | size_t size) |
108 | { |
109 | { |
109 | dev_priv->mm.object_count++; |
110 | dev_priv->mm.object_count++; |
110 | dev_priv->mm.object_memory += size; |
111 | dev_priv->mm.object_memory += size; |
111 | } |
112 | } |
112 | 113 | ||
113 | static void i915_gem_info_remove_obj(struct drm_i915_private *dev_priv, |
114 | static void i915_gem_info_remove_obj(struct drm_i915_private *dev_priv, |
114 | size_t size) |
115 | size_t size) |
115 | { |
116 | { |
116 | dev_priv->mm.object_count--; |
117 | dev_priv->mm.object_count--; |
117 | dev_priv->mm.object_memory -= size; |
118 | dev_priv->mm.object_memory -= size; |
118 | } |
119 | } |
119 | 120 | ||
120 | static int |
121 | static int |
121 | i915_gem_wait_for_error(struct i915_gpu_error *error) |
122 | i915_gem_wait_for_error(struct i915_gpu_error *error) |
122 | { |
123 | { |
123 | int ret; |
124 | int ret; |
124 | 125 | ||
125 | #define EXIT_COND (!i915_reset_in_progress(error)) |
126 | #define EXIT_COND (!i915_reset_in_progress(error)) |
126 | if (EXIT_COND) |
127 | if (EXIT_COND) |
127 | return 0; |
128 | return 0; |
128 | #if 0 |
129 | #if 0 |
129 | /* |
130 | /* |
130 | * Only wait 10 seconds for the gpu reset to complete to avoid hanging |
131 | * Only wait 10 seconds for the gpu reset to complete to avoid hanging |
131 | * userspace. If it takes that long something really bad is going on and |
132 | * userspace. If it takes that long something really bad is going on and |
132 | * we should simply try to bail out and fail as gracefully as possible. |
133 | * we should simply try to bail out and fail as gracefully as possible. |
133 | */ |
134 | */ |
134 | ret = wait_event_interruptible_timeout(error->reset_queue, |
135 | ret = wait_event_interruptible_timeout(error->reset_queue, |
135 | EXIT_COND, |
136 | EXIT_COND, |
136 | 10*HZ); |
137 | 10*HZ); |
137 | if (ret == 0) { |
138 | if (ret == 0) { |
138 | DRM_ERROR("Timed out waiting for the gpu reset to complete\n"); |
139 | DRM_ERROR("Timed out waiting for the gpu reset to complete\n"); |
139 | return -EIO; |
140 | return -EIO; |
140 | } else if (ret < 0) { |
141 | } else if (ret < 0) { |
141 | return ret; |
142 | return ret; |
142 | } |
143 | } |
143 | 144 | ||
144 | #endif |
145 | #endif |
145 | #undef EXIT_COND |
146 | #undef EXIT_COND |
146 | 147 | ||
147 | return 0; |
148 | return 0; |
148 | } |
149 | } |
149 | 150 | ||
150 | int i915_mutex_lock_interruptible(struct drm_device *dev) |
151 | int i915_mutex_lock_interruptible(struct drm_device *dev) |
151 | { |
152 | { |
152 | struct drm_i915_private *dev_priv = dev->dev_private; |
153 | struct drm_i915_private *dev_priv = dev->dev_private; |
153 | int ret; |
154 | int ret; |
154 | 155 | ||
155 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
156 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
156 | if (ret) |
157 | if (ret) |
157 | return ret; |
158 | return ret; |
158 | 159 | ||
159 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
160 | ret = mutex_lock_interruptible(&dev->struct_mutex); |
160 | if (ret) |
161 | if (ret) |
161 | return ret; |
162 | return ret; |
162 | 163 | ||
163 | WARN_ON(i915_verify_lists(dev)); |
164 | WARN_ON(i915_verify_lists(dev)); |
164 | return 0; |
165 | return 0; |
165 | } |
166 | } |
166 | 167 | ||
167 | static inline bool |
168 | static inline bool |
168 | i915_gem_object_is_inactive(struct drm_i915_gem_object *obj) |
169 | i915_gem_object_is_inactive(struct drm_i915_gem_object *obj) |
169 | { |
170 | { |
170 | return obj->gtt_space && !obj->active; |
171 | return obj->gtt_space && !obj->active; |
171 | } |
172 | } |
172 | 173 | ||
173 | 174 | ||
174 | #if 0 |
175 | #if 0 |
175 | 176 | ||
176 | int |
177 | int |
177 | i915_gem_init_ioctl(struct drm_device *dev, void *data, |
178 | i915_gem_init_ioctl(struct drm_device *dev, void *data, |
178 | struct drm_file *file) |
179 | struct drm_file *file) |
179 | { |
180 | { |
180 | struct drm_i915_private *dev_priv = dev->dev_private; |
181 | struct drm_i915_private *dev_priv = dev->dev_private; |
181 | struct drm_i915_gem_init *args = data; |
182 | struct drm_i915_gem_init *args = data; |
182 | 183 | ||
183 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
184 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
184 | return -ENODEV; |
185 | return -ENODEV; |
185 | 186 | ||
186 | if (args->gtt_start >= args->gtt_end || |
187 | if (args->gtt_start >= args->gtt_end || |
187 | (args->gtt_end | args->gtt_start) & (PAGE_SIZE - 1)) |
188 | (args->gtt_end | args->gtt_start) & (PAGE_SIZE - 1)) |
188 | return -EINVAL; |
189 | return -EINVAL; |
189 | 190 | ||
190 | /* GEM with user mode setting was never supported on ilk and later. */ |
191 | /* GEM with user mode setting was never supported on ilk and later. */ |
191 | if (INTEL_INFO(dev)->gen >= 5) |
192 | if (INTEL_INFO(dev)->gen >= 5) |
192 | return -ENODEV; |
193 | return -ENODEV; |
193 | 194 | ||
194 | mutex_lock(&dev->struct_mutex); |
195 | mutex_lock(&dev->struct_mutex); |
195 | i915_gem_setup_global_gtt(dev, args->gtt_start, args->gtt_end, |
196 | i915_gem_setup_global_gtt(dev, args->gtt_start, args->gtt_end, |
196 | args->gtt_end); |
197 | args->gtt_end); |
197 | dev_priv->gtt.mappable_end = args->gtt_end; |
198 | dev_priv->gtt.mappable_end = args->gtt_end; |
198 | mutex_unlock(&dev->struct_mutex); |
199 | mutex_unlock(&dev->struct_mutex); |
199 | 200 | ||
200 | return 0; |
201 | return 0; |
201 | } |
202 | } |
202 | #endif |
203 | #endif |
203 | 204 | ||
204 | int |
205 | int |
205 | i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, |
206 | i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, |
206 | struct drm_file *file) |
207 | struct drm_file *file) |
207 | { |
208 | { |
208 | struct drm_i915_private *dev_priv = dev->dev_private; |
209 | struct drm_i915_private *dev_priv = dev->dev_private; |
209 | struct drm_i915_gem_get_aperture *args = data; |
210 | struct drm_i915_gem_get_aperture *args = data; |
210 | struct drm_i915_gem_object *obj; |
211 | struct drm_i915_gem_object *obj; |
211 | size_t pinned; |
212 | size_t pinned; |
212 | 213 | ||
213 | pinned = 0; |
214 | pinned = 0; |
214 | mutex_lock(&dev->struct_mutex); |
215 | mutex_lock(&dev->struct_mutex); |
215 | list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) |
216 | list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) |
216 | if (obj->pin_count) |
217 | if (obj->pin_count) |
217 | pinned += obj->gtt_space->size; |
218 | pinned += obj->gtt_space->size; |
218 | mutex_unlock(&dev->struct_mutex); |
219 | mutex_unlock(&dev->struct_mutex); |
219 | 220 | ||
220 | args->aper_size = dev_priv->gtt.total; |
221 | args->aper_size = dev_priv->gtt.total; |
221 | args->aper_available_size = args->aper_size - pinned; |
222 | args->aper_available_size = args->aper_size - pinned; |
222 | 223 | ||
223 | return 0; |
224 | return 0; |
224 | } |
225 | } |
225 | 226 | ||
226 | void *i915_gem_object_alloc(struct drm_device *dev) |
227 | void *i915_gem_object_alloc(struct drm_device *dev) |
227 | { |
228 | { |
228 | struct drm_i915_private *dev_priv = dev->dev_private; |
229 | struct drm_i915_private *dev_priv = dev->dev_private; |
229 | return kmalloc(sizeof(struct drm_i915_gem_object), 0); |
230 | return kmalloc(sizeof(struct drm_i915_gem_object), 0); |
230 | } |
231 | } |
231 | 232 | ||
232 | void i915_gem_object_free(struct drm_i915_gem_object *obj) |
233 | void i915_gem_object_free(struct drm_i915_gem_object *obj) |
233 | { |
234 | { |
234 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
235 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
235 | kfree(obj); |
236 | kfree(obj); |
236 | } |
237 | } |
237 | 238 | ||
238 | static int |
239 | static int |
239 | i915_gem_create(struct drm_file *file, |
240 | i915_gem_create(struct drm_file *file, |
240 | struct drm_device *dev, |
241 | struct drm_device *dev, |
241 | uint64_t size, |
242 | uint64_t size, |
242 | uint32_t *handle_p) |
243 | uint32_t *handle_p) |
243 | { |
244 | { |
244 | struct drm_i915_gem_object *obj; |
245 | struct drm_i915_gem_object *obj; |
245 | int ret; |
246 | int ret; |
246 | u32 handle; |
247 | u32 handle; |
247 | 248 | ||
248 | size = roundup(size, PAGE_SIZE); |
249 | size = roundup(size, PAGE_SIZE); |
249 | if (size == 0) |
250 | if (size == 0) |
250 | return -EINVAL; |
251 | return -EINVAL; |
251 | 252 | ||
252 | /* Allocate the new object */ |
253 | /* Allocate the new object */ |
253 | obj = i915_gem_alloc_object(dev, size); |
254 | obj = i915_gem_alloc_object(dev, size); |
254 | if (obj == NULL) |
255 | if (obj == NULL) |
255 | return -ENOMEM; |
256 | return -ENOMEM; |
256 | 257 | ||
257 | ret = drm_gem_handle_create(file, &obj->base, &handle); |
258 | ret = drm_gem_handle_create(file, &obj->base, &handle); |
258 | if (ret) { |
259 | if (ret) { |
259 | drm_gem_object_release(&obj->base); |
260 | drm_gem_object_release(&obj->base); |
260 | i915_gem_info_remove_obj(dev->dev_private, obj->base.size); |
261 | i915_gem_info_remove_obj(dev->dev_private, obj->base.size); |
261 | kfree(obj); |
262 | kfree(obj); |
262 | return ret; |
263 | return ret; |
263 | } |
264 | } |
264 | 265 | ||
265 | /* drop reference from allocate - handle holds it now */ |
266 | /* drop reference from allocate - handle holds it now */ |
266 | drm_gem_object_unreference(&obj->base); |
267 | drm_gem_object_unreference(&obj->base); |
267 | trace_i915_gem_object_create(obj); |
268 | trace_i915_gem_object_create(obj); |
268 | 269 | ||
269 | *handle_p = handle; |
270 | *handle_p = handle; |
270 | return 0; |
271 | return 0; |
271 | } |
272 | } |
272 | 273 | ||
273 | int |
274 | int |
274 | i915_gem_dumb_create(struct drm_file *file, |
275 | i915_gem_dumb_create(struct drm_file *file, |
275 | struct drm_device *dev, |
276 | struct drm_device *dev, |
276 | struct drm_mode_create_dumb *args) |
277 | struct drm_mode_create_dumb *args) |
277 | { |
278 | { |
278 | /* have to work out size/pitch and return them */ |
279 | /* have to work out size/pitch and return them */ |
279 | args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64); |
280 | args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64); |
280 | args->size = args->pitch * args->height; |
281 | args->size = args->pitch * args->height; |
281 | return i915_gem_create(file, dev, |
282 | return i915_gem_create(file, dev, |
282 | args->size, &args->handle); |
283 | args->size, &args->handle); |
283 | } |
284 | } |
284 | 285 | ||
285 | int i915_gem_dumb_destroy(struct drm_file *file, |
286 | int i915_gem_dumb_destroy(struct drm_file *file, |
286 | struct drm_device *dev, |
287 | struct drm_device *dev, |
287 | uint32_t handle) |
288 | uint32_t handle) |
288 | { |
289 | { |
289 | return drm_gem_handle_delete(file, handle); |
290 | return drm_gem_handle_delete(file, handle); |
290 | } |
291 | } |
291 | 292 | ||
292 | /** |
293 | /** |
293 | * Creates a new mm object and returns a handle to it. |
294 | * Creates a new mm object and returns a handle to it. |
294 | */ |
295 | */ |
295 | int |
296 | int |
296 | i915_gem_create_ioctl(struct drm_device *dev, void *data, |
297 | i915_gem_create_ioctl(struct drm_device *dev, void *data, |
297 | struct drm_file *file) |
298 | struct drm_file *file) |
298 | { |
299 | { |
299 | struct drm_i915_gem_create *args = data; |
300 | struct drm_i915_gem_create *args = data; |
300 | 301 | ||
301 | return i915_gem_create(file, dev, |
302 | return i915_gem_create(file, dev, |
302 | args->size, &args->handle); |
303 | args->size, &args->handle); |
303 | } |
304 | } |
304 | 305 | ||
305 | 306 | ||
306 | #if 0 |
307 | #if 0 |
307 | 308 | ||
308 | static inline int |
309 | static inline int |
309 | __copy_to_user_swizzled(char __user *cpu_vaddr, |
310 | __copy_to_user_swizzled(char __user *cpu_vaddr, |
310 | const char *gpu_vaddr, int gpu_offset, |
311 | const char *gpu_vaddr, int gpu_offset, |
311 | int length) |
312 | int length) |
312 | { |
313 | { |
313 | int ret, cpu_offset = 0; |
314 | int ret, cpu_offset = 0; |
314 | 315 | ||
315 | while (length > 0) { |
316 | while (length > 0) { |
316 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
317 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
317 | int this_length = min(cacheline_end - gpu_offset, length); |
318 | int this_length = min(cacheline_end - gpu_offset, length); |
318 | int swizzled_gpu_offset = gpu_offset ^ 64; |
319 | int swizzled_gpu_offset = gpu_offset ^ 64; |
319 | 320 | ||
320 | ret = __copy_to_user(cpu_vaddr + cpu_offset, |
321 | ret = __copy_to_user(cpu_vaddr + cpu_offset, |
321 | gpu_vaddr + swizzled_gpu_offset, |
322 | gpu_vaddr + swizzled_gpu_offset, |
322 | this_length); |
323 | this_length); |
323 | if (ret) |
324 | if (ret) |
324 | return ret + length; |
325 | return ret + length; |
325 | 326 | ||
326 | cpu_offset += this_length; |
327 | cpu_offset += this_length; |
327 | gpu_offset += this_length; |
328 | gpu_offset += this_length; |
328 | length -= this_length; |
329 | length -= this_length; |
329 | } |
330 | } |
330 | 331 | ||
331 | return 0; |
332 | return 0; |
332 | } |
333 | } |
333 | 334 | ||
334 | static inline int |
335 | static inline int |
335 | __copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset, |
336 | __copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset, |
336 | const char __user *cpu_vaddr, |
337 | const char __user *cpu_vaddr, |
337 | int length) |
338 | int length) |
338 | { |
339 | { |
339 | int ret, cpu_offset = 0; |
340 | int ret, cpu_offset = 0; |
340 | 341 | ||
341 | while (length > 0) { |
342 | while (length > 0) { |
342 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
343 | int cacheline_end = ALIGN(gpu_offset + 1, 64); |
343 | int this_length = min(cacheline_end - gpu_offset, length); |
344 | int this_length = min(cacheline_end - gpu_offset, length); |
344 | int swizzled_gpu_offset = gpu_offset ^ 64; |
345 | int swizzled_gpu_offset = gpu_offset ^ 64; |
345 | 346 | ||
346 | ret = __copy_from_user(gpu_vaddr + swizzled_gpu_offset, |
347 | ret = __copy_from_user(gpu_vaddr + swizzled_gpu_offset, |
347 | cpu_vaddr + cpu_offset, |
348 | cpu_vaddr + cpu_offset, |
348 | this_length); |
349 | this_length); |
349 | if (ret) |
350 | if (ret) |
350 | return ret + length; |
351 | return ret + length; |
351 | 352 | ||
352 | cpu_offset += this_length; |
353 | cpu_offset += this_length; |
353 | gpu_offset += this_length; |
354 | gpu_offset += this_length; |
354 | length -= this_length; |
355 | length -= this_length; |
355 | } |
356 | } |
356 | 357 | ||
357 | return 0; |
358 | return 0; |
358 | } |
359 | } |
359 | 360 | ||
360 | /* Per-page copy function for the shmem pread fastpath. |
361 | /* Per-page copy function for the shmem pread fastpath. |
361 | * Flushes invalid cachelines before reading the target if |
362 | * Flushes invalid cachelines before reading the target if |
362 | * needs_clflush is set. */ |
363 | * needs_clflush is set. */ |
363 | static int |
364 | static int |
364 | shmem_pread_fast(struct page *page, int shmem_page_offset, int page_length, |
365 | shmem_pread_fast(struct page *page, int shmem_page_offset, int page_length, |
365 | char __user *user_data, |
366 | char __user *user_data, |
366 | bool page_do_bit17_swizzling, bool needs_clflush) |
367 | bool page_do_bit17_swizzling, bool needs_clflush) |
367 | { |
368 | { |
368 | char *vaddr; |
369 | char *vaddr; |
369 | int ret; |
370 | int ret; |
370 | 371 | ||
371 | if (unlikely(page_do_bit17_swizzling)) |
372 | if (unlikely(page_do_bit17_swizzling)) |
372 | return -EINVAL; |
373 | return -EINVAL; |
373 | 374 | ||
374 | vaddr = kmap_atomic(page); |
375 | vaddr = kmap_atomic(page); |
375 | if (needs_clflush) |
376 | if (needs_clflush) |
376 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
377 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
377 | page_length); |
378 | page_length); |
378 | ret = __copy_to_user_inatomic(user_data, |
379 | ret = __copy_to_user_inatomic(user_data, |
379 | vaddr + shmem_page_offset, |
380 | vaddr + shmem_page_offset, |
380 | page_length); |
381 | page_length); |
381 | kunmap_atomic(vaddr); |
382 | kunmap_atomic(vaddr); |
382 | 383 | ||
383 | return ret ? -EFAULT : 0; |
384 | return ret ? -EFAULT : 0; |
384 | } |
385 | } |
385 | 386 | ||
386 | static void |
387 | static void |
387 | shmem_clflush_swizzled_range(char *addr, unsigned long length, |
388 | shmem_clflush_swizzled_range(char *addr, unsigned long length, |
388 | bool swizzled) |
389 | bool swizzled) |
389 | { |
390 | { |
390 | if (unlikely(swizzled)) { |
391 | if (unlikely(swizzled)) { |
391 | unsigned long start = (unsigned long) addr; |
392 | unsigned long start = (unsigned long) addr; |
392 | unsigned long end = (unsigned long) addr + length; |
393 | unsigned long end = (unsigned long) addr + length; |
393 | 394 | ||
394 | /* For swizzling simply ensure that we always flush both |
395 | /* For swizzling simply ensure that we always flush both |
395 | * channels. Lame, but simple and it works. Swizzled |
396 | * channels. Lame, but simple and it works. Swizzled |
396 | * pwrite/pread is far from a hotpath - current userspace |
397 | * pwrite/pread is far from a hotpath - current userspace |
397 | * doesn't use it at all. */ |
398 | * doesn't use it at all. */ |
398 | start = round_down(start, 128); |
399 | start = round_down(start, 128); |
399 | end = round_up(end, 128); |
400 | end = round_up(end, 128); |
400 | 401 | ||
401 | drm_clflush_virt_range((void *)start, end - start); |
402 | drm_clflush_virt_range((void *)start, end - start); |
402 | } else { |
403 | } else { |
403 | drm_clflush_virt_range(addr, length); |
404 | drm_clflush_virt_range(addr, length); |
404 | } |
405 | } |
405 | 406 | ||
406 | } |
407 | } |
407 | 408 | ||
408 | /* Only difference to the fast-path function is that this can handle bit17 |
409 | /* Only difference to the fast-path function is that this can handle bit17 |
409 | * and uses non-atomic copy and kmap functions. */ |
410 | * and uses non-atomic copy and kmap functions. */ |
410 | static int |
411 | static int |
411 | shmem_pread_slow(struct page *page, int shmem_page_offset, int page_length, |
412 | shmem_pread_slow(struct page *page, int shmem_page_offset, int page_length, |
412 | char __user *user_data, |
413 | char __user *user_data, |
413 | bool page_do_bit17_swizzling, bool needs_clflush) |
414 | bool page_do_bit17_swizzling, bool needs_clflush) |
414 | { |
415 | { |
415 | char *vaddr; |
416 | char *vaddr; |
416 | int ret; |
417 | int ret; |
417 | 418 | ||
418 | vaddr = kmap(page); |
419 | vaddr = kmap(page); |
419 | if (needs_clflush) |
420 | if (needs_clflush) |
420 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
421 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
421 | page_length, |
422 | page_length, |
422 | page_do_bit17_swizzling); |
423 | page_do_bit17_swizzling); |
423 | 424 | ||
424 | if (page_do_bit17_swizzling) |
425 | if (page_do_bit17_swizzling) |
425 | ret = __copy_to_user_swizzled(user_data, |
426 | ret = __copy_to_user_swizzled(user_data, |
426 | vaddr, shmem_page_offset, |
427 | vaddr, shmem_page_offset, |
427 | page_length); |
428 | page_length); |
428 | else |
429 | else |
429 | ret = __copy_to_user(user_data, |
430 | ret = __copy_to_user(user_data, |
430 | vaddr + shmem_page_offset, |
431 | vaddr + shmem_page_offset, |
431 | page_length); |
432 | page_length); |
432 | kunmap(page); |
433 | kunmap(page); |
433 | 434 | ||
434 | return ret ? - EFAULT : 0; |
435 | return ret ? - EFAULT : 0; |
435 | } |
436 | } |
436 | 437 | ||
437 | static int |
438 | static int |
438 | i915_gem_shmem_pread(struct drm_device *dev, |
439 | i915_gem_shmem_pread(struct drm_device *dev, |
439 | struct drm_i915_gem_object *obj, |
440 | struct drm_i915_gem_object *obj, |
440 | struct drm_i915_gem_pread *args, |
441 | struct drm_i915_gem_pread *args, |
441 | struct drm_file *file) |
442 | struct drm_file *file) |
442 | { |
443 | { |
443 | char __user *user_data; |
444 | char __user *user_data; |
444 | ssize_t remain; |
445 | ssize_t remain; |
445 | loff_t offset; |
446 | loff_t offset; |
446 | int shmem_page_offset, page_length, ret = 0; |
447 | int shmem_page_offset, page_length, ret = 0; |
447 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
448 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
448 | int prefaulted = 0; |
449 | int prefaulted = 0; |
449 | int needs_clflush = 0; |
450 | int needs_clflush = 0; |
450 | struct scatterlist *sg; |
451 | struct sg_page_iter sg_iter; |
451 | int i; |
- | |
452 | 452 | ||
453 | user_data = (char __user *) (uintptr_t) args->data_ptr; |
453 | user_data = to_user_ptr(args->data_ptr); |
454 | remain = args->size; |
454 | remain = args->size; |
455 | 455 | ||
456 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
456 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
457 | 457 | ||
458 | if (!(obj->base.read_domains & I915_GEM_DOMAIN_CPU)) { |
458 | if (!(obj->base.read_domains & I915_GEM_DOMAIN_CPU)) { |
459 | /* If we're not in the cpu read domain, set ourself into the gtt |
459 | /* If we're not in the cpu read domain, set ourself into the gtt |
460 | * read domain and manually flush cachelines (if required). This |
460 | * read domain and manually flush cachelines (if required). This |
461 | * optimizes for the case when the gpu will dirty the data |
461 | * optimizes for the case when the gpu will dirty the data |
462 | * anyway again before the next pread happens. */ |
462 | * anyway again before the next pread happens. */ |
463 | if (obj->cache_level == I915_CACHE_NONE) |
463 | if (obj->cache_level == I915_CACHE_NONE) |
464 | needs_clflush = 1; |
464 | needs_clflush = 1; |
465 | if (obj->gtt_space) { |
465 | if (obj->gtt_space) { |
466 | ret = i915_gem_object_set_to_gtt_domain(obj, false); |
466 | ret = i915_gem_object_set_to_gtt_domain(obj, false); |
467 | if (ret) |
467 | if (ret) |
468 | return ret; |
468 | return ret; |
469 | } |
469 | } |
470 | } |
470 | } |
471 | 471 | ||
472 | ret = i915_gem_object_get_pages(obj); |
472 | ret = i915_gem_object_get_pages(obj); |
473 | if (ret) |
473 | if (ret) |
474 | return ret; |
474 | return ret; |
475 | 475 | ||
476 | i915_gem_object_pin_pages(obj); |
476 | i915_gem_object_pin_pages(obj); |
477 | 477 | ||
478 | offset = args->offset; |
478 | offset = args->offset; |
479 | 479 | ||
480 | for_each_sg(obj->pages->sgl, sg, obj->pages->nents, i) { |
- | |
481 | struct page *page; |
- | |
482 | 480 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
|
483 | if (i < offset >> PAGE_SHIFT) |
481 | offset >> PAGE_SHIFT) { |
484 | continue; |
482 | struct page *page = sg_page_iter_page(&sg_iter); |
485 | 483 | ||
486 | if (remain <= 0) |
484 | if (remain <= 0) |
487 | break; |
485 | break; |
488 | 486 | ||
489 | /* Operation in this page |
487 | /* Operation in this page |
490 | * |
488 | * |
491 | * shmem_page_offset = offset within page in shmem file |
489 | * shmem_page_offset = offset within page in shmem file |
492 | * page_length = bytes to copy for this page |
490 | * page_length = bytes to copy for this page |
493 | */ |
491 | */ |
494 | shmem_page_offset = offset_in_page(offset); |
492 | shmem_page_offset = offset_in_page(offset); |
495 | page_length = remain; |
493 | page_length = remain; |
496 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
494 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
497 | page_length = PAGE_SIZE - shmem_page_offset; |
495 | page_length = PAGE_SIZE - shmem_page_offset; |
498 | - | ||
499 | page = sg_page(sg); |
496 | |
500 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
497 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
501 | (page_to_phys(page) & (1 << 17)) != 0; |
498 | (page_to_phys(page) & (1 << 17)) != 0; |
502 | 499 | ||
503 | ret = shmem_pread_fast(page, shmem_page_offset, page_length, |
500 | ret = shmem_pread_fast(page, shmem_page_offset, page_length, |
504 | user_data, page_do_bit17_swizzling, |
501 | user_data, page_do_bit17_swizzling, |
505 | needs_clflush); |
502 | needs_clflush); |
506 | if (ret == 0) |
503 | if (ret == 0) |
507 | goto next_page; |
504 | goto next_page; |
508 | 505 | ||
509 | mutex_unlock(&dev->struct_mutex); |
506 | mutex_unlock(&dev->struct_mutex); |
510 | 507 | ||
511 | if (!prefaulted) { |
508 | if (!prefaulted) { |
512 | ret = fault_in_multipages_writeable(user_data, remain); |
509 | ret = fault_in_multipages_writeable(user_data, remain); |
513 | /* Userspace is tricking us, but we've already clobbered |
510 | /* Userspace is tricking us, but we've already clobbered |
514 | * its pages with the prefault and promised to write the |
511 | * its pages with the prefault and promised to write the |
515 | * data up to the first fault. Hence ignore any errors |
512 | * data up to the first fault. Hence ignore any errors |
516 | * and just continue. */ |
513 | * and just continue. */ |
517 | (void)ret; |
514 | (void)ret; |
518 | prefaulted = 1; |
515 | prefaulted = 1; |
519 | } |
516 | } |
520 | 517 | ||
521 | ret = shmem_pread_slow(page, shmem_page_offset, page_length, |
518 | ret = shmem_pread_slow(page, shmem_page_offset, page_length, |
522 | user_data, page_do_bit17_swizzling, |
519 | user_data, page_do_bit17_swizzling, |
523 | needs_clflush); |
520 | needs_clflush); |
524 | 521 | ||
525 | mutex_lock(&dev->struct_mutex); |
522 | mutex_lock(&dev->struct_mutex); |
526 | 523 | ||
527 | next_page: |
524 | next_page: |
528 | mark_page_accessed(page); |
525 | mark_page_accessed(page); |
529 | 526 | ||
530 | if (ret) |
527 | if (ret) |
531 | goto out; |
528 | goto out; |
532 | 529 | ||
533 | remain -= page_length; |
530 | remain -= page_length; |
534 | user_data += page_length; |
531 | user_data += page_length; |
535 | offset += page_length; |
532 | offset += page_length; |
536 | } |
533 | } |
537 | 534 | ||
538 | out: |
535 | out: |
539 | i915_gem_object_unpin_pages(obj); |
536 | i915_gem_object_unpin_pages(obj); |
540 | 537 | ||
541 | return ret; |
538 | return ret; |
542 | } |
539 | } |
543 | 540 | ||
544 | /** |
541 | /** |
545 | * Reads data from the object referenced by handle. |
542 | * Reads data from the object referenced by handle. |
546 | * |
543 | * |
547 | * On error, the contents of *data are undefined. |
544 | * On error, the contents of *data are undefined. |
548 | */ |
545 | */ |
549 | int |
546 | int |
550 | i915_gem_pread_ioctl(struct drm_device *dev, void *data, |
547 | i915_gem_pread_ioctl(struct drm_device *dev, void *data, |
551 | struct drm_file *file) |
548 | struct drm_file *file) |
552 | { |
549 | { |
553 | struct drm_i915_gem_pread *args = data; |
550 | struct drm_i915_gem_pread *args = data; |
554 | struct drm_i915_gem_object *obj; |
551 | struct drm_i915_gem_object *obj; |
555 | int ret = 0; |
552 | int ret = 0; |
556 | 553 | ||
557 | if (args->size == 0) |
554 | if (args->size == 0) |
558 | return 0; |
555 | return 0; |
559 | 556 | ||
560 | if (!access_ok(VERIFY_WRITE, |
557 | if (!access_ok(VERIFY_WRITE, |
561 | (char __user *)(uintptr_t)args->data_ptr, |
558 | to_user_ptr(args->data_ptr), |
562 | args->size)) |
559 | args->size)) |
563 | return -EFAULT; |
560 | return -EFAULT; |
564 | 561 | ||
565 | ret = i915_mutex_lock_interruptible(dev); |
562 | ret = i915_mutex_lock_interruptible(dev); |
566 | if (ret) |
563 | if (ret) |
567 | return ret; |
564 | return ret; |
568 | 565 | ||
569 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
566 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
570 | if (&obj->base == NULL) { |
567 | if (&obj->base == NULL) { |
571 | ret = -ENOENT; |
568 | ret = -ENOENT; |
572 | goto unlock; |
569 | goto unlock; |
573 | } |
570 | } |
574 | 571 | ||
575 | /* Bounds check source. */ |
572 | /* Bounds check source. */ |
576 | if (args->offset > obj->base.size || |
573 | if (args->offset > obj->base.size || |
577 | args->size > obj->base.size - args->offset) { |
574 | args->size > obj->base.size - args->offset) { |
578 | ret = -EINVAL; |
575 | ret = -EINVAL; |
579 | goto out; |
576 | goto out; |
580 | } |
577 | } |
581 | 578 | ||
582 | /* prime objects have no backing filp to GEM pread/pwrite |
579 | /* prime objects have no backing filp to GEM pread/pwrite |
583 | * pages from. |
580 | * pages from. |
584 | */ |
581 | */ |
585 | if (!obj->base.filp) { |
582 | if (!obj->base.filp) { |
586 | ret = -EINVAL; |
583 | ret = -EINVAL; |
587 | goto out; |
584 | goto out; |
588 | } |
585 | } |
589 | 586 | ||
590 | trace_i915_gem_object_pread(obj, args->offset, args->size); |
587 | trace_i915_gem_object_pread(obj, args->offset, args->size); |
591 | 588 | ||
592 | ret = i915_gem_shmem_pread(dev, obj, args, file); |
589 | ret = i915_gem_shmem_pread(dev, obj, args, file); |
593 | 590 | ||
594 | out: |
591 | out: |
595 | drm_gem_object_unreference(&obj->base); |
592 | drm_gem_object_unreference(&obj->base); |
596 | unlock: |
593 | unlock: |
597 | mutex_unlock(&dev->struct_mutex); |
594 | mutex_unlock(&dev->struct_mutex); |
598 | return ret; |
595 | return ret; |
599 | } |
596 | } |
600 | 597 | ||
601 | /* This is the fast write path which cannot handle |
598 | /* This is the fast write path which cannot handle |
602 | * page faults in the source data |
599 | * page faults in the source data |
603 | */ |
600 | */ |
604 | 601 | ||
605 | static inline int |
602 | static inline int |
606 | fast_user_write(struct io_mapping *mapping, |
603 | fast_user_write(struct io_mapping *mapping, |
607 | loff_t page_base, int page_offset, |
604 | loff_t page_base, int page_offset, |
608 | char __user *user_data, |
605 | char __user *user_data, |
609 | int length) |
606 | int length) |
610 | { |
607 | { |
611 | void __iomem *vaddr_atomic; |
608 | void __iomem *vaddr_atomic; |
612 | void *vaddr; |
609 | void *vaddr; |
613 | unsigned long unwritten; |
610 | unsigned long unwritten; |
614 | 611 | ||
615 | vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base); |
612 | vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base); |
616 | /* We can use the cpu mem copy function because this is X86. */ |
613 | /* We can use the cpu mem copy function because this is X86. */ |
617 | vaddr = (void __force*)vaddr_atomic + page_offset; |
614 | vaddr = (void __force*)vaddr_atomic + page_offset; |
618 | unwritten = __copy_from_user_inatomic_nocache(vaddr, |
615 | unwritten = __copy_from_user_inatomic_nocache(vaddr, |
619 | user_data, length); |
616 | user_data, length); |
620 | io_mapping_unmap_atomic(vaddr_atomic); |
617 | io_mapping_unmap_atomic(vaddr_atomic); |
621 | return unwritten; |
618 | return unwritten; |
622 | } |
619 | } |
623 | #endif |
620 | #endif |
624 | 621 | ||
625 | #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) |
622 | #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) |
626 | /** |
623 | /** |
627 | * This is the fast pwrite path, where we copy the data directly from the |
624 | * This is the fast pwrite path, where we copy the data directly from the |
628 | * user into the GTT, uncached. |
625 | * user into the GTT, uncached. |
629 | */ |
626 | */ |
630 | static int |
627 | static int |
631 | i915_gem_gtt_pwrite_fast(struct drm_device *dev, |
628 | i915_gem_gtt_pwrite_fast(struct drm_device *dev, |
632 | struct drm_i915_gem_object *obj, |
629 | struct drm_i915_gem_object *obj, |
633 | struct drm_i915_gem_pwrite *args, |
630 | struct drm_i915_gem_pwrite *args, |
634 | struct drm_file *file) |
631 | struct drm_file *file) |
635 | { |
632 | { |
636 | drm_i915_private_t *dev_priv = dev->dev_private; |
633 | drm_i915_private_t *dev_priv = dev->dev_private; |
637 | ssize_t remain; |
634 | ssize_t remain; |
638 | loff_t offset, page_base; |
635 | loff_t offset, page_base; |
639 | char __user *user_data; |
636 | char __user *user_data; |
640 | int page_offset, page_length, ret; |
637 | int page_offset, page_length, ret; |
641 | char *vaddr; |
638 | char *vaddr; |
642 | 639 | ||
643 | ret = i915_gem_object_pin(obj, 0, true, true); |
640 | ret = i915_gem_object_pin(obj, 0, true, true); |
644 | if (ret) |
641 | if (ret) |
645 | goto out; |
642 | goto out; |
646 | 643 | ||
647 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
644 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
648 | if (ret) |
645 | if (ret) |
649 | goto out_unpin; |
646 | goto out_unpin; |
650 | 647 | ||
651 | ret = i915_gem_object_put_fence(obj); |
648 | ret = i915_gem_object_put_fence(obj); |
652 | if (ret) |
649 | if (ret) |
653 | goto out_unpin; |
650 | goto out_unpin; |
654 | 651 | ||
655 | vaddr = AllocKernelSpace(4096); |
652 | vaddr = AllocKernelSpace(4096); |
656 | if(vaddr == NULL) |
653 | if(vaddr == NULL) |
657 | { |
654 | { |
658 | ret = -ENOSPC; |
655 | ret = -ENOSPC; |
659 | goto out_unpin; |
656 | goto out_unpin; |
660 | }; |
657 | }; |
661 | 658 | ||
662 | user_data = (char __user *) (uintptr_t) args->data_ptr; |
659 | user_data = (char __user *) (uintptr_t) args->data_ptr; |
663 | remain = args->size; |
660 | remain = args->size; |
664 | 661 | ||
665 | offset = obj->gtt_offset + args->offset; |
662 | offset = obj->gtt_offset + args->offset; |
666 | 663 | ||
667 | while (remain > 0) { |
664 | while (remain > 0) { |
668 | /* Operation in this page |
665 | /* Operation in this page |
669 | * |
666 | * |
670 | * page_base = page offset within aperture |
667 | * page_base = page offset within aperture |
671 | * page_offset = offset within page |
668 | * page_offset = offset within page |
672 | * page_length = bytes to copy for this page |
669 | * page_length = bytes to copy for this page |
673 | */ |
670 | */ |
674 | page_base = offset & PAGE_MASK; |
671 | page_base = offset & PAGE_MASK; |
675 | page_offset = offset_in_page(offset); |
672 | page_offset = offset_in_page(offset); |
676 | page_length = remain; |
673 | page_length = remain; |
677 | if ((page_offset + remain) > PAGE_SIZE) |
674 | if ((page_offset + remain) > PAGE_SIZE) |
678 | page_length = PAGE_SIZE - page_offset; |
675 | page_length = PAGE_SIZE - page_offset; |
679 | 676 | ||
680 | MapPage(vaddr, page_base, PG_SW|PG_NOCACHE); |
677 | MapPage(vaddr, page_base, PG_SW|PG_NOCACHE); |
681 | 678 | ||
682 | memcpy(vaddr+page_offset, user_data, page_length); |
679 | memcpy(vaddr+page_offset, user_data, page_length); |
683 | 680 | ||
684 | remain -= page_length; |
681 | remain -= page_length; |
685 | user_data += page_length; |
682 | user_data += page_length; |
686 | offset += page_length; |
683 | offset += page_length; |
687 | } |
684 | } |
688 | 685 | ||
689 | FreeKernelSpace(vaddr); |
686 | FreeKernelSpace(vaddr); |
690 | 687 | ||
691 | out_unpin: |
688 | out_unpin: |
692 | i915_gem_object_unpin(obj); |
689 | i915_gem_object_unpin(obj); |
693 | out: |
690 | out: |
694 | return ret; |
691 | return ret; |
695 | } |
692 | } |
696 | 693 | ||
697 | /* Per-page copy function for the shmem pwrite fastpath. |
694 | /* Per-page copy function for the shmem pwrite fastpath. |
698 | * Flushes invalid cachelines before writing to the target if |
695 | * Flushes invalid cachelines before writing to the target if |
699 | * needs_clflush_before is set and flushes out any written cachelines after |
696 | * needs_clflush_before is set and flushes out any written cachelines after |
700 | * writing if needs_clflush is set. */ |
697 | * writing if needs_clflush is set. */ |
701 | static int |
698 | static int |
702 | shmem_pwrite_fast(struct page *page, int shmem_page_offset, int page_length, |
699 | shmem_pwrite_fast(struct page *page, int shmem_page_offset, int page_length, |
703 | char __user *user_data, |
700 | char __user *user_data, |
704 | bool page_do_bit17_swizzling, |
701 | bool page_do_bit17_swizzling, |
705 | bool needs_clflush_before, |
702 | bool needs_clflush_before, |
706 | bool needs_clflush_after) |
703 | bool needs_clflush_after) |
707 | { |
704 | { |
708 | char *vaddr; |
705 | char *vaddr; |
709 | int ret = 0; |
706 | int ret = 0; |
710 | 707 | ||
711 | if (unlikely(page_do_bit17_swizzling)) |
708 | if (unlikely(page_do_bit17_swizzling)) |
712 | return -EINVAL; |
709 | return -EINVAL; |
713 | 710 | ||
714 | vaddr = (char *)MapIoMem((addr_t)page, 4096, PG_SW); |
711 | vaddr = (char *)MapIoMem((addr_t)page, 4096, PG_SW); |
715 | if (needs_clflush_before) |
712 | if (needs_clflush_before) |
716 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
713 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
717 | page_length); |
714 | page_length); |
718 | memcpy(vaddr + shmem_page_offset, |
715 | memcpy(vaddr + shmem_page_offset, |
719 | user_data, |
716 | user_data, |
720 | page_length); |
717 | page_length); |
721 | if (needs_clflush_after) |
718 | if (needs_clflush_after) |
722 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
719 | drm_clflush_virt_range(vaddr + shmem_page_offset, |
723 | page_length); |
720 | page_length); |
724 | FreeKernelSpace(vaddr); |
721 | FreeKernelSpace(vaddr); |
725 | 722 | ||
726 | return ret ? -EFAULT : 0; |
723 | return ret ? -EFAULT : 0; |
727 | } |
724 | } |
728 | #if 0 |
725 | #if 0 |
729 | 726 | ||
730 | /* Only difference to the fast-path function is that this can handle bit17 |
727 | /* Only difference to the fast-path function is that this can handle bit17 |
731 | * and uses non-atomic copy and kmap functions. */ |
728 | * and uses non-atomic copy and kmap functions. */ |
732 | static int |
729 | static int |
733 | shmem_pwrite_slow(struct page *page, int shmem_page_offset, int page_length, |
730 | shmem_pwrite_slow(struct page *page, int shmem_page_offset, int page_length, |
734 | char __user *user_data, |
731 | char __user *user_data, |
735 | bool page_do_bit17_swizzling, |
732 | bool page_do_bit17_swizzling, |
736 | bool needs_clflush_before, |
733 | bool needs_clflush_before, |
737 | bool needs_clflush_after) |
734 | bool needs_clflush_after) |
738 | { |
735 | { |
739 | char *vaddr; |
736 | char *vaddr; |
740 | int ret; |
737 | int ret; |
741 | 738 | ||
742 | vaddr = kmap(page); |
739 | vaddr = kmap(page); |
743 | if (unlikely(needs_clflush_before || page_do_bit17_swizzling)) |
740 | if (unlikely(needs_clflush_before || page_do_bit17_swizzling)) |
744 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
741 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
745 | page_length, |
742 | page_length, |
746 | page_do_bit17_swizzling); |
743 | page_do_bit17_swizzling); |
747 | if (page_do_bit17_swizzling) |
744 | if (page_do_bit17_swizzling) |
748 | ret = __copy_from_user_swizzled(vaddr, shmem_page_offset, |
745 | ret = __copy_from_user_swizzled(vaddr, shmem_page_offset, |
749 | user_data, |
746 | user_data, |
750 | page_length); |
747 | page_length); |
751 | else |
748 | else |
752 | ret = __copy_from_user(vaddr + shmem_page_offset, |
749 | ret = __copy_from_user(vaddr + shmem_page_offset, |
753 | user_data, |
750 | user_data, |
754 | page_length); |
751 | page_length); |
755 | if (needs_clflush_after) |
752 | if (needs_clflush_after) |
756 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
753 | shmem_clflush_swizzled_range(vaddr + shmem_page_offset, |
757 | page_length, |
754 | page_length, |
758 | page_do_bit17_swizzling); |
755 | page_do_bit17_swizzling); |
759 | kunmap(page); |
756 | kunmap(page); |
760 | 757 | ||
761 | return ret ? -EFAULT : 0; |
758 | return ret ? -EFAULT : 0; |
762 | } |
759 | } |
763 | #endif |
760 | #endif |
764 | 761 | ||
765 | 762 | ||
766 | static int |
763 | static int |
767 | i915_gem_shmem_pwrite(struct drm_device *dev, |
764 | i915_gem_shmem_pwrite(struct drm_device *dev, |
768 | struct drm_i915_gem_object *obj, |
765 | struct drm_i915_gem_object *obj, |
769 | struct drm_i915_gem_pwrite *args, |
766 | struct drm_i915_gem_pwrite *args, |
770 | struct drm_file *file) |
767 | struct drm_file *file) |
771 | { |
768 | { |
772 | ssize_t remain; |
769 | ssize_t remain; |
773 | loff_t offset; |
770 | loff_t offset; |
774 | char __user *user_data; |
771 | char __user *user_data; |
775 | int shmem_page_offset, page_length, ret = 0; |
772 | int shmem_page_offset, page_length, ret = 0; |
776 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
773 | int obj_do_bit17_swizzling, page_do_bit17_swizzling; |
777 | int hit_slowpath = 0; |
774 | int hit_slowpath = 0; |
778 | int needs_clflush_after = 0; |
775 | int needs_clflush_after = 0; |
779 | int needs_clflush_before = 0; |
776 | int needs_clflush_before = 0; |
780 | int i; |
- | |
781 | struct scatterlist *sg; |
777 | struct sg_page_iter sg_iter; |
782 | 778 | ||
783 | user_data = (char __user *) (uintptr_t) args->data_ptr; |
779 | user_data = to_user_ptr(args->data_ptr); |
784 | remain = args->size; |
780 | remain = args->size; |
785 | 781 | ||
786 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
782 | obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); |
787 | 783 | ||
788 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
784 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
789 | /* If we're not in the cpu write domain, set ourself into the gtt |
785 | /* If we're not in the cpu write domain, set ourself into the gtt |
790 | * write domain and manually flush cachelines (if required). This |
786 | * write domain and manually flush cachelines (if required). This |
791 | * optimizes for the case when the gpu will use the data |
787 | * optimizes for the case when the gpu will use the data |
792 | * right away and we therefore have to clflush anyway. */ |
788 | * right away and we therefore have to clflush anyway. */ |
793 | if (obj->cache_level == I915_CACHE_NONE) |
789 | if (obj->cache_level == I915_CACHE_NONE) |
794 | needs_clflush_after = 1; |
790 | needs_clflush_after = 1; |
795 | if (obj->gtt_space) { |
791 | if (obj->gtt_space) { |
796 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
792 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
797 | if (ret) |
793 | if (ret) |
798 | return ret; |
794 | return ret; |
799 | } |
795 | } |
800 | } |
796 | } |
801 | /* Same trick applies for invalidate partially written cachelines before |
797 | /* Same trick applies for invalidate partially written cachelines before |
802 | * writing. */ |
798 | * writing. */ |
803 | if (!(obj->base.read_domains & I915_GEM_DOMAIN_CPU) |
799 | if (!(obj->base.read_domains & I915_GEM_DOMAIN_CPU) |
804 | && obj->cache_level == I915_CACHE_NONE) |
800 | && obj->cache_level == I915_CACHE_NONE) |
805 | needs_clflush_before = 1; |
801 | needs_clflush_before = 1; |
806 | 802 | ||
807 | ret = i915_gem_object_get_pages(obj); |
803 | ret = i915_gem_object_get_pages(obj); |
808 | if (ret) |
804 | if (ret) |
809 | return ret; |
805 | return ret; |
810 | 806 | ||
811 | i915_gem_object_pin_pages(obj); |
807 | i915_gem_object_pin_pages(obj); |
812 | 808 | ||
813 | offset = args->offset; |
809 | offset = args->offset; |
814 | obj->dirty = 1; |
810 | obj->dirty = 1; |
815 | 811 | ||
- | 812 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, |
|
816 | for_each_sg(obj->pages->sgl, sg, obj->pages->nents, i) { |
813 | offset >> PAGE_SHIFT) { |
817 | struct page *page; |
814 | struct page *page = sg_page_iter_page(&sg_iter); |
818 | int partial_cacheline_write; |
- | |
819 | - | ||
820 | if (i < offset >> PAGE_SHIFT) |
- | |
821 | continue; |
815 | int partial_cacheline_write; |
822 | 816 | ||
823 | if (remain <= 0) |
817 | if (remain <= 0) |
824 | break; |
818 | break; |
825 | 819 | ||
826 | /* Operation in this page |
820 | /* Operation in this page |
827 | * |
821 | * |
828 | * shmem_page_offset = offset within page in shmem file |
822 | * shmem_page_offset = offset within page in shmem file |
829 | * page_length = bytes to copy for this page |
823 | * page_length = bytes to copy for this page |
830 | */ |
824 | */ |
831 | shmem_page_offset = offset_in_page(offset); |
825 | shmem_page_offset = offset_in_page(offset); |
832 | 826 | ||
833 | page_length = remain; |
827 | page_length = remain; |
834 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
828 | if ((shmem_page_offset + page_length) > PAGE_SIZE) |
835 | page_length = PAGE_SIZE - shmem_page_offset; |
829 | page_length = PAGE_SIZE - shmem_page_offset; |
836 | 830 | ||
837 | /* If we don't overwrite a cacheline completely we need to be |
831 | /* If we don't overwrite a cacheline completely we need to be |
838 | * careful to have up-to-date data by first clflushing. Don't |
832 | * careful to have up-to-date data by first clflushing. Don't |
839 | * overcomplicate things and flush the entire patch. */ |
833 | * overcomplicate things and flush the entire patch. */ |
840 | partial_cacheline_write = needs_clflush_before && |
834 | partial_cacheline_write = needs_clflush_before && |
841 | ((shmem_page_offset | page_length) |
835 | ((shmem_page_offset | page_length) |
842 | & (x86_clflush_size - 1)); |
836 | & (x86_clflush_size - 1)); |
843 | - | ||
844 | page = sg_page(sg); |
837 | |
845 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
838 | page_do_bit17_swizzling = obj_do_bit17_swizzling && |
846 | (page_to_phys(page) & (1 << 17)) != 0; |
839 | (page_to_phys(page) & (1 << 17)) != 0; |
847 | 840 | ||
848 | ret = shmem_pwrite_fast(page, shmem_page_offset, page_length, |
841 | ret = shmem_pwrite_fast(page, shmem_page_offset, page_length, |
849 | user_data, page_do_bit17_swizzling, |
842 | user_data, page_do_bit17_swizzling, |
850 | partial_cacheline_write, |
843 | partial_cacheline_write, |
851 | needs_clflush_after); |
844 | needs_clflush_after); |
852 | if (ret == 0) |
845 | if (ret == 0) |
853 | goto next_page; |
846 | goto next_page; |
854 | 847 | ||
855 | hit_slowpath = 1; |
848 | hit_slowpath = 1; |
856 | mutex_unlock(&dev->struct_mutex); |
849 | mutex_unlock(&dev->struct_mutex); |
857 | dbgprintf("%s need shmem_pwrite_slow\n",__FUNCTION__); |
850 | dbgprintf("%s need shmem_pwrite_slow\n",__FUNCTION__); |
858 | 851 | ||
859 | // ret = shmem_pwrite_slow(page, shmem_page_offset, page_length, |
852 | // ret = shmem_pwrite_slow(page, shmem_page_offset, page_length, |
860 | // user_data, page_do_bit17_swizzling, |
853 | // user_data, page_do_bit17_swizzling, |
861 | // partial_cacheline_write, |
854 | // partial_cacheline_write, |
862 | // needs_clflush_after); |
855 | // needs_clflush_after); |
863 | 856 | ||
864 | mutex_lock(&dev->struct_mutex); |
857 | mutex_lock(&dev->struct_mutex); |
865 | 858 | ||
866 | next_page: |
859 | next_page: |
867 | 860 | ||
868 | if (ret) |
861 | if (ret) |
869 | goto out; |
862 | goto out; |
870 | 863 | ||
871 | remain -= page_length; |
864 | remain -= page_length; |
872 | user_data += page_length; |
865 | user_data += page_length; |
873 | offset += page_length; |
866 | offset += page_length; |
874 | } |
867 | } |
875 | 868 | ||
876 | out: |
869 | out: |
877 | i915_gem_object_unpin_pages(obj); |
870 | i915_gem_object_unpin_pages(obj); |
878 | 871 | ||
879 | if (hit_slowpath) { |
872 | if (hit_slowpath) { |
880 | /* |
873 | /* |
881 | * Fixup: Flush cpu caches in case we didn't flush the dirty |
874 | * Fixup: Flush cpu caches in case we didn't flush the dirty |
882 | * cachelines in-line while writing and the object moved |
875 | * cachelines in-line while writing and the object moved |
883 | * out of the cpu write domain while we've dropped the lock. |
876 | * out of the cpu write domain while we've dropped the lock. |
884 | */ |
877 | */ |
885 | if (!needs_clflush_after && |
878 | if (!needs_clflush_after && |
886 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
879 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
887 | i915_gem_clflush_object(obj); |
880 | i915_gem_clflush_object(obj); |
888 | i915_gem_chipset_flush(dev); |
881 | i915_gem_chipset_flush(dev); |
889 | } |
882 | } |
890 | } |
883 | } |
891 | 884 | ||
892 | if (needs_clflush_after) |
885 | if (needs_clflush_after) |
893 | i915_gem_chipset_flush(dev); |
886 | i915_gem_chipset_flush(dev); |
894 | 887 | ||
895 | return ret; |
888 | return ret; |
896 | } |
889 | } |
897 | 890 | ||
898 | /** |
891 | /** |
899 | * Writes data to the object referenced by handle. |
892 | * Writes data to the object referenced by handle. |
900 | * |
893 | * |
901 | * On error, the contents of the buffer that were to be modified are undefined. |
894 | * On error, the contents of the buffer that were to be modified are undefined. |
902 | */ |
895 | */ |
903 | int |
896 | int |
904 | i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, |
897 | i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, |
905 | struct drm_file *file) |
898 | struct drm_file *file) |
906 | { |
899 | { |
907 | struct drm_i915_gem_pwrite *args = data; |
900 | struct drm_i915_gem_pwrite *args = data; |
908 | struct drm_i915_gem_object *obj; |
901 | struct drm_i915_gem_object *obj; |
909 | int ret; |
902 | int ret; |
910 | 903 | ||
911 | if(args->handle == -2) |
904 | if(args->handle == -2) |
912 | { |
905 | { |
913 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
906 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
914 | return 0; |
907 | return 0; |
915 | } |
908 | } |
916 | 909 | ||
917 | if (args->size == 0) |
910 | if (args->size == 0) |
918 | return 0; |
911 | return 0; |
919 | 912 | ||
920 | ret = i915_mutex_lock_interruptible(dev); |
913 | ret = i915_mutex_lock_interruptible(dev); |
921 | if (ret) |
914 | if (ret) |
922 | return ret; |
915 | return ret; |
923 | 916 | ||
924 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
917 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
925 | if (&obj->base == NULL) { |
918 | if (&obj->base == NULL) { |
926 | ret = -ENOENT; |
919 | ret = -ENOENT; |
927 | goto unlock; |
920 | goto unlock; |
928 | } |
921 | } |
929 | 922 | ||
930 | /* Bounds check destination. */ |
923 | /* Bounds check destination. */ |
931 | if (args->offset > obj->base.size || |
924 | if (args->offset > obj->base.size || |
932 | args->size > obj->base.size - args->offset) { |
925 | args->size > obj->base.size - args->offset) { |
933 | ret = -EINVAL; |
926 | ret = -EINVAL; |
934 | goto out; |
927 | goto out; |
935 | } |
928 | } |
936 | 929 | ||
937 | /* prime objects have no backing filp to GEM pread/pwrite |
930 | /* prime objects have no backing filp to GEM pread/pwrite |
938 | * pages from. |
931 | * pages from. |
939 | */ |
932 | */ |
940 | if (!obj->base.filp) { |
933 | if (!obj->base.filp) { |
941 | ret = -EINVAL; |
934 | ret = -EINVAL; |
942 | goto out; |
935 | goto out; |
943 | } |
936 | } |
944 | 937 | ||
945 | trace_i915_gem_object_pwrite(obj, args->offset, args->size); |
938 | trace_i915_gem_object_pwrite(obj, args->offset, args->size); |
946 | 939 | ||
947 | ret = -EFAULT; |
940 | ret = -EFAULT; |
948 | /* We can only do the GTT pwrite on untiled buffers, as otherwise |
941 | /* We can only do the GTT pwrite on untiled buffers, as otherwise |
949 | * it would end up going through the fenced access, and we'll get |
942 | * it would end up going through the fenced access, and we'll get |
950 | * different detiling behavior between reading and writing. |
943 | * different detiling behavior between reading and writing. |
951 | * pread/pwrite currently are reading and writing from the CPU |
944 | * pread/pwrite currently are reading and writing from the CPU |
952 | * perspective, requiring manual detiling by the client. |
945 | * perspective, requiring manual detiling by the client. |
953 | */ |
946 | */ |
954 | // if (obj->phys_obj) { |
947 | // if (obj->phys_obj) { |
955 | // ret = i915_gem_phys_pwrite(dev, obj, args, file); |
948 | // ret = i915_gem_phys_pwrite(dev, obj, args, file); |
956 | // goto out; |
949 | // goto out; |
957 | // } |
950 | // } |
958 | 951 | ||
959 | if (obj->cache_level == I915_CACHE_NONE && |
952 | if (obj->cache_level == I915_CACHE_NONE && |
960 | obj->tiling_mode == I915_TILING_NONE && |
953 | obj->tiling_mode == I915_TILING_NONE && |
961 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
954 | obj->base.write_domain != I915_GEM_DOMAIN_CPU) { |
962 | ret = i915_gem_gtt_pwrite_fast(dev, obj, args, file); |
955 | ret = i915_gem_gtt_pwrite_fast(dev, obj, args, file); |
963 | /* Note that the gtt paths might fail with non-page-backed user |
956 | /* Note that the gtt paths might fail with non-page-backed user |
964 | * pointers (e.g. gtt mappings when moving data between |
957 | * pointers (e.g. gtt mappings when moving data between |
965 | * textures). Fallback to the shmem path in that case. */ |
958 | * textures). Fallback to the shmem path in that case. */ |
966 | } |
959 | } |
967 | 960 | ||
968 | if (ret == -EFAULT || ret == -ENOSPC) |
961 | if (ret == -EFAULT || ret == -ENOSPC) |
969 | ret = i915_gem_shmem_pwrite(dev, obj, args, file); |
962 | ret = i915_gem_shmem_pwrite(dev, obj, args, file); |
970 | 963 | ||
971 | out: |
964 | out: |
972 | drm_gem_object_unreference(&obj->base); |
965 | drm_gem_object_unreference(&obj->base); |
973 | unlock: |
966 | unlock: |
974 | mutex_unlock(&dev->struct_mutex); |
967 | mutex_unlock(&dev->struct_mutex); |
975 | return ret; |
968 | return ret; |
976 | } |
969 | } |
977 | 970 | ||
978 | int |
971 | int |
979 | i915_gem_check_wedge(struct i915_gpu_error *error, |
972 | i915_gem_check_wedge(struct i915_gpu_error *error, |
980 | bool interruptible) |
973 | bool interruptible) |
981 | { |
974 | { |
982 | if (i915_reset_in_progress(error)) { |
975 | if (i915_reset_in_progress(error)) { |
983 | /* Non-interruptible callers can't handle -EAGAIN, hence return |
976 | /* Non-interruptible callers can't handle -EAGAIN, hence return |
984 | * -EIO unconditionally for these. */ |
977 | * -EIO unconditionally for these. */ |
985 | if (!interruptible) |
978 | if (!interruptible) |
986 | return -EIO; |
979 | return -EIO; |
987 | 980 | ||
988 | /* Recovery complete, but the reset failed ... */ |
981 | /* Recovery complete, but the reset failed ... */ |
989 | if (i915_terminally_wedged(error)) |
982 | if (i915_terminally_wedged(error)) |
990 | return -EIO; |
983 | return -EIO; |
991 | 984 | ||
992 | return -EAGAIN; |
985 | return -EAGAIN; |
993 | } |
986 | } |
994 | 987 | ||
995 | return 0; |
988 | return 0; |
996 | } |
989 | } |
997 | 990 | ||
998 | /* |
991 | /* |
999 | * Compare seqno against outstanding lazy request. Emit a request if they are |
992 | * Compare seqno against outstanding lazy request. Emit a request if they are |
1000 | * equal. |
993 | * equal. |
1001 | */ |
994 | */ |
1002 | static int |
995 | static int |
1003 | i915_gem_check_olr(struct intel_ring_buffer *ring, u32 seqno) |
996 | i915_gem_check_olr(struct intel_ring_buffer *ring, u32 seqno) |
1004 | { |
997 | { |
1005 | int ret; |
998 | int ret; |
1006 | 999 | ||
1007 | BUG_ON(!mutex_is_locked(&ring->dev->struct_mutex)); |
1000 | BUG_ON(!mutex_is_locked(&ring->dev->struct_mutex)); |
1008 | 1001 | ||
1009 | ret = 0; |
1002 | ret = 0; |
1010 | if (seqno == ring->outstanding_lazy_request) |
1003 | if (seqno == ring->outstanding_lazy_request) |
1011 | ret = i915_add_request(ring, NULL, NULL); |
1004 | ret = i915_add_request(ring, NULL, NULL); |
1012 | 1005 | ||
1013 | return ret; |
1006 | return ret; |
1014 | } |
1007 | } |
1015 | 1008 | ||
1016 | /** |
1009 | /** |
1017 | * __wait_seqno - wait until execution of seqno has finished |
1010 | * __wait_seqno - wait until execution of seqno has finished |
1018 | * @ring: the ring expected to report seqno |
1011 | * @ring: the ring expected to report seqno |
1019 | * @seqno: duh! |
1012 | * @seqno: duh! |
1020 | * @reset_counter: reset sequence associated with the given seqno |
1013 | * @reset_counter: reset sequence associated with the given seqno |
1021 | * @interruptible: do an interruptible wait (normally yes) |
1014 | * @interruptible: do an interruptible wait (normally yes) |
1022 | * @timeout: in - how long to wait (NULL forever); out - how much time remaining |
1015 | * @timeout: in - how long to wait (NULL forever); out - how much time remaining |
1023 | * |
1016 | * |
1024 | * Note: It is of utmost importance that the passed in seqno and reset_counter |
1017 | * Note: It is of utmost importance that the passed in seqno and reset_counter |
1025 | * values have been read by the caller in an smp safe manner. Where read-side |
1018 | * values have been read by the caller in an smp safe manner. Where read-side |
1026 | * locks are involved, it is sufficient to read the reset_counter before |
1019 | * locks are involved, it is sufficient to read the reset_counter before |
1027 | * unlocking the lock that protects the seqno. For lockless tricks, the |
1020 | * unlocking the lock that protects the seqno. For lockless tricks, the |
1028 | * reset_counter _must_ be read before, and an appropriate smp_rmb must be |
1021 | * reset_counter _must_ be read before, and an appropriate smp_rmb must be |
1029 | * inserted. |
1022 | * inserted. |
1030 | * |
1023 | * |
1031 | * Returns 0 if the seqno was found within the alloted time. Else returns the |
1024 | * Returns 0 if the seqno was found within the alloted time. Else returns the |
1032 | * errno with remaining time filled in timeout argument. |
1025 | * errno with remaining time filled in timeout argument. |
1033 | */ |
1026 | */ |
1034 | static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno, |
1027 | static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno, |
1035 | unsigned reset_counter, |
1028 | unsigned reset_counter, |
1036 | bool interruptible, struct timespec *timeout) |
1029 | bool interruptible, struct timespec *timeout) |
1037 | { |
1030 | { |
1038 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
1031 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
1039 | struct timespec before, now, wait_time={1,0}; |
1032 | struct timespec before, now, wait_time={1,0}; |
1040 | unsigned long timeout_jiffies; |
1033 | unsigned long timeout_jiffies; |
1041 | long end; |
1034 | long end; |
1042 | bool wait_forever = true; |
1035 | bool wait_forever = true; |
1043 | int ret; |
1036 | int ret; |
1044 | 1037 | ||
1045 | if (i915_seqno_passed(ring->get_seqno(ring, true), seqno)) |
1038 | if (i915_seqno_passed(ring->get_seqno(ring, true), seqno)) |
1046 | return 0; |
1039 | return 0; |
1047 | 1040 | ||
1048 | trace_i915_gem_request_wait_begin(ring, seqno); |
1041 | trace_i915_gem_request_wait_begin(ring, seqno); |
1049 | 1042 | ||
1050 | if (timeout != NULL) { |
1043 | if (timeout != NULL) { |
1051 | wait_time = *timeout; |
1044 | wait_time = *timeout; |
1052 | wait_forever = false; |
1045 | wait_forever = false; |
1053 | } |
1046 | } |
1054 | 1047 | ||
1055 | timeout_jiffies = timespec_to_jiffies(&wait_time); |
1048 | timeout_jiffies = timespec_to_jiffies(&wait_time); |
1056 | 1049 | ||
1057 | if (WARN_ON(!ring->irq_get(ring))) |
1050 | if (WARN_ON(!ring->irq_get(ring))) |
1058 | return -ENODEV; |
1051 | return -ENODEV; |
1059 | 1052 | ||
1060 | /* Record current time in case interrupted by signal, or wedged * */ |
1053 | /* Record current time in case interrupted by signal, or wedged * */ |
1061 | getrawmonotonic(&before); |
1054 | getrawmonotonic(&before); |
1062 | 1055 | ||
1063 | #define EXIT_COND \ |
1056 | #define EXIT_COND \ |
1064 | (i915_seqno_passed(ring->get_seqno(ring, false), seqno) || \ |
1057 | (i915_seqno_passed(ring->get_seqno(ring, false), seqno) || \ |
1065 | i915_reset_in_progress(&dev_priv->gpu_error) || \ |
1058 | i915_reset_in_progress(&dev_priv->gpu_error) || \ |
1066 | reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) |
1059 | reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) |
1067 | do { |
1060 | do { |
1068 | if (interruptible) |
1061 | if (interruptible) |
1069 | end = wait_event_interruptible_timeout(ring->irq_queue, |
1062 | end = wait_event_interruptible_timeout(ring->irq_queue, |
1070 | EXIT_COND, |
1063 | EXIT_COND, |
1071 | timeout_jiffies); |
1064 | timeout_jiffies); |
1072 | else |
1065 | else |
1073 | end = wait_event_timeout(ring->irq_queue, EXIT_COND, |
1066 | end = wait_event_timeout(ring->irq_queue, EXIT_COND, |
1074 | timeout_jiffies); |
1067 | timeout_jiffies); |
1075 | 1068 | ||
1076 | /* We need to check whether any gpu reset happened in between |
1069 | /* We need to check whether any gpu reset happened in between |
1077 | * the caller grabbing the seqno and now ... */ |
1070 | * the caller grabbing the seqno and now ... */ |
1078 | if (reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) |
1071 | if (reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter)) |
1079 | end = -EAGAIN; |
1072 | end = -EAGAIN; |
1080 | 1073 | ||
1081 | /* ... but upgrade the -EGAIN to an -EIO if the gpu is truely |
1074 | /* ... but upgrade the -EGAIN to an -EIO if the gpu is truely |
1082 | * gone. */ |
1075 | * gone. */ |
1083 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1076 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1084 | if (ret) |
1077 | if (ret) |
1085 | end = ret; |
1078 | end = ret; |
1086 | } while (end == 0 && wait_forever); |
1079 | } while (end == 0 && wait_forever); |
1087 | 1080 | ||
1088 | getrawmonotonic(&now); |
1081 | getrawmonotonic(&now); |
1089 | 1082 | ||
1090 | ring->irq_put(ring); |
1083 | ring->irq_put(ring); |
1091 | trace_i915_gem_request_wait_end(ring, seqno); |
1084 | trace_i915_gem_request_wait_end(ring, seqno); |
1092 | #undef EXIT_COND |
1085 | #undef EXIT_COND |
1093 | 1086 | ||
1094 | if (timeout) { |
1087 | if (timeout) { |
1095 | // struct timespec sleep_time = timespec_sub(now, before); |
1088 | // struct timespec sleep_time = timespec_sub(now, before); |
1096 | // *timeout = timespec_sub(*timeout, sleep_time); |
1089 | // *timeout = timespec_sub(*timeout, sleep_time); |
1097 | } |
1090 | } |
1098 | 1091 | ||
1099 | switch (end) { |
1092 | switch (end) { |
1100 | case -EIO: |
1093 | case -EIO: |
1101 | case -EAGAIN: /* Wedged */ |
1094 | case -EAGAIN: /* Wedged */ |
1102 | case -ERESTARTSYS: /* Signal */ |
1095 | case -ERESTARTSYS: /* Signal */ |
1103 | return (int)end; |
1096 | return (int)end; |
1104 | case 0: /* Timeout */ |
1097 | case 0: /* Timeout */ |
1105 | if (timeout) |
- | |
1106 | set_normalized_timespec(timeout, 0, 0); |
- | |
1107 | return -ETIME; |
1098 | return -ETIME; |
1108 | default: /* Completed */ |
1099 | default: /* Completed */ |
1109 | WARN_ON(end < 0); /* We're not aware of other errors */ |
1100 | WARN_ON(end < 0); /* We're not aware of other errors */ |
1110 | return 0; |
1101 | return 0; |
1111 | } |
1102 | } |
1112 | } |
1103 | } |
1113 | 1104 | ||
1114 | /** |
1105 | /** |
1115 | * Waits for a sequence number to be signaled, and cleans up the |
1106 | * Waits for a sequence number to be signaled, and cleans up the |
1116 | * request and object lists appropriately for that event. |
1107 | * request and object lists appropriately for that event. |
1117 | */ |
1108 | */ |
1118 | int |
1109 | int |
1119 | i915_wait_seqno(struct intel_ring_buffer *ring, uint32_t seqno) |
1110 | i915_wait_seqno(struct intel_ring_buffer *ring, uint32_t seqno) |
1120 | { |
1111 | { |
1121 | struct drm_device *dev = ring->dev; |
1112 | struct drm_device *dev = ring->dev; |
1122 | struct drm_i915_private *dev_priv = dev->dev_private; |
1113 | struct drm_i915_private *dev_priv = dev->dev_private; |
1123 | bool interruptible = dev_priv->mm.interruptible; |
1114 | bool interruptible = dev_priv->mm.interruptible; |
1124 | int ret; |
1115 | int ret; |
1125 | 1116 | ||
1126 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1117 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1127 | BUG_ON(seqno == 0); |
1118 | BUG_ON(seqno == 0); |
1128 | 1119 | ||
1129 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1120 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, interruptible); |
1130 | if (ret) |
1121 | if (ret) |
1131 | return ret; |
1122 | return ret; |
1132 | 1123 | ||
1133 | ret = i915_gem_check_olr(ring, seqno); |
1124 | ret = i915_gem_check_olr(ring, seqno); |
1134 | if (ret) |
1125 | if (ret) |
1135 | return ret; |
1126 | return ret; |
1136 | 1127 | ||
1137 | return __wait_seqno(ring, seqno, |
1128 | return __wait_seqno(ring, seqno, |
1138 | atomic_read(&dev_priv->gpu_error.reset_counter), |
1129 | atomic_read(&dev_priv->gpu_error.reset_counter), |
1139 | interruptible, NULL); |
1130 | interruptible, NULL); |
1140 | } |
1131 | } |
1141 | 1132 | ||
1142 | /** |
1133 | /** |
1143 | * Ensures that all rendering to the object has completed and the object is |
1134 | * Ensures that all rendering to the object has completed and the object is |
1144 | * safe to unbind from the GTT or access from the CPU. |
1135 | * safe to unbind from the GTT or access from the CPU. |
1145 | */ |
1136 | */ |
1146 | static __must_check int |
1137 | static __must_check int |
1147 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
1138 | i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, |
1148 | bool readonly) |
1139 | bool readonly) |
1149 | { |
1140 | { |
1150 | struct intel_ring_buffer *ring = obj->ring; |
1141 | struct intel_ring_buffer *ring = obj->ring; |
1151 | u32 seqno; |
1142 | u32 seqno; |
1152 | int ret; |
1143 | int ret; |
1153 | 1144 | ||
1154 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1145 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1155 | if (seqno == 0) |
1146 | if (seqno == 0) |
1156 | return 0; |
1147 | return 0; |
1157 | 1148 | ||
1158 | ret = i915_wait_seqno(ring, seqno); |
1149 | ret = i915_wait_seqno(ring, seqno); |
1159 | if (ret) |
1150 | if (ret) |
1160 | return ret; |
1151 | return ret; |
1161 | 1152 | ||
1162 | i915_gem_retire_requests_ring(ring); |
1153 | i915_gem_retire_requests_ring(ring); |
1163 | 1154 | ||
1164 | /* Manually manage the write flush as we may have not yet |
1155 | /* Manually manage the write flush as we may have not yet |
1165 | * retired the buffer. |
1156 | * retired the buffer. |
1166 | */ |
1157 | */ |
1167 | if (obj->last_write_seqno && |
1158 | if (obj->last_write_seqno && |
1168 | i915_seqno_passed(seqno, obj->last_write_seqno)) { |
1159 | i915_seqno_passed(seqno, obj->last_write_seqno)) { |
1169 | obj->last_write_seqno = 0; |
1160 | obj->last_write_seqno = 0; |
1170 | obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS; |
1161 | obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS; |
1171 | } |
1162 | } |
1172 | 1163 | ||
1173 | return 0; |
1164 | return 0; |
1174 | } |
1165 | } |
1175 | 1166 | ||
1176 | /* A nonblocking variant of the above wait. This is a highly dangerous routine |
1167 | /* A nonblocking variant of the above wait. This is a highly dangerous routine |
1177 | * as the object state may change during this call. |
1168 | * as the object state may change during this call. |
1178 | */ |
1169 | */ |
1179 | static __must_check int |
1170 | static __must_check int |
1180 | i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj, |
1171 | i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj, |
1181 | bool readonly) |
1172 | bool readonly) |
1182 | { |
1173 | { |
1183 | struct drm_device *dev = obj->base.dev; |
1174 | struct drm_device *dev = obj->base.dev; |
1184 | struct drm_i915_private *dev_priv = dev->dev_private; |
1175 | struct drm_i915_private *dev_priv = dev->dev_private; |
1185 | struct intel_ring_buffer *ring = obj->ring; |
1176 | struct intel_ring_buffer *ring = obj->ring; |
1186 | unsigned reset_counter; |
1177 | unsigned reset_counter; |
1187 | u32 seqno; |
1178 | u32 seqno; |
1188 | int ret; |
1179 | int ret; |
1189 | 1180 | ||
1190 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1181 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); |
1191 | BUG_ON(!dev_priv->mm.interruptible); |
1182 | BUG_ON(!dev_priv->mm.interruptible); |
1192 | 1183 | ||
1193 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1184 | seqno = readonly ? obj->last_write_seqno : obj->last_read_seqno; |
1194 | if (seqno == 0) |
1185 | if (seqno == 0) |
1195 | return 0; |
1186 | return 0; |
1196 | 1187 | ||
1197 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, true); |
1188 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, true); |
1198 | if (ret) |
1189 | if (ret) |
1199 | return ret; |
1190 | return ret; |
1200 | 1191 | ||
1201 | ret = i915_gem_check_olr(ring, seqno); |
1192 | ret = i915_gem_check_olr(ring, seqno); |
1202 | if (ret) |
1193 | if (ret) |
1203 | return ret; |
1194 | return ret; |
1204 | 1195 | ||
1205 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
1196 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
1206 | mutex_unlock(&dev->struct_mutex); |
1197 | mutex_unlock(&dev->struct_mutex); |
1207 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL); |
1198 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL); |
1208 | mutex_lock(&dev->struct_mutex); |
1199 | mutex_lock(&dev->struct_mutex); |
1209 | 1200 | ||
1210 | i915_gem_retire_requests_ring(ring); |
1201 | i915_gem_retire_requests_ring(ring); |
1211 | 1202 | ||
1212 | /* Manually manage the write flush as we may have not yet |
1203 | /* Manually manage the write flush as we may have not yet |
1213 | * retired the buffer. |
1204 | * retired the buffer. |
1214 | */ |
1205 | */ |
1215 | if (obj->last_write_seqno && |
1206 | if (obj->last_write_seqno && |
1216 | i915_seqno_passed(seqno, obj->last_write_seqno)) { |
1207 | i915_seqno_passed(seqno, obj->last_write_seqno)) { |
1217 | obj->last_write_seqno = 0; |
1208 | obj->last_write_seqno = 0; |
1218 | obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS; |
1209 | obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS; |
1219 | } |
1210 | } |
1220 | 1211 | ||
1221 | return ret; |
1212 | return ret; |
1222 | } |
1213 | } |
1223 | 1214 | ||
1224 | /** |
1215 | /** |
1225 | * Called when user space prepares to use an object with the CPU, either |
1216 | * Called when user space prepares to use an object with the CPU, either |
1226 | * through the mmap ioctl's mapping or a GTT mapping. |
1217 | * through the mmap ioctl's mapping or a GTT mapping. |
1227 | */ |
1218 | */ |
1228 | int |
1219 | int |
1229 | i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, |
1220 | i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, |
1230 | struct drm_file *file) |
1221 | struct drm_file *file) |
1231 | { |
1222 | { |
1232 | struct drm_i915_gem_set_domain *args = data; |
1223 | struct drm_i915_gem_set_domain *args = data; |
1233 | struct drm_i915_gem_object *obj; |
1224 | struct drm_i915_gem_object *obj; |
1234 | uint32_t read_domains = args->read_domains; |
1225 | uint32_t read_domains = args->read_domains; |
1235 | uint32_t write_domain = args->write_domain; |
1226 | uint32_t write_domain = args->write_domain; |
1236 | int ret; |
1227 | int ret; |
1237 | 1228 | ||
1238 | 1229 | ||
1239 | if(args->handle == -2) |
1230 | if(args->handle == -2) |
1240 | { |
1231 | { |
1241 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
1232 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
1242 | return 0; |
1233 | return 0; |
1243 | } |
1234 | } |
1244 | 1235 | ||
1245 | /* Only handle setting domains to types used by the CPU. */ |
1236 | /* Only handle setting domains to types used by the CPU. */ |
1246 | if (write_domain & I915_GEM_GPU_DOMAINS) |
1237 | if (write_domain & I915_GEM_GPU_DOMAINS) |
1247 | return -EINVAL; |
1238 | return -EINVAL; |
1248 | 1239 | ||
1249 | if (read_domains & I915_GEM_GPU_DOMAINS) |
1240 | if (read_domains & I915_GEM_GPU_DOMAINS) |
1250 | return -EINVAL; |
1241 | return -EINVAL; |
1251 | 1242 | ||
1252 | /* Having something in the write domain implies it's in the read |
1243 | /* Having something in the write domain implies it's in the read |
1253 | * domain, and only that read domain. Enforce that in the request. |
1244 | * domain, and only that read domain. Enforce that in the request. |
1254 | */ |
1245 | */ |
1255 | if (write_domain != 0 && read_domains != write_domain) |
1246 | if (write_domain != 0 && read_domains != write_domain) |
1256 | return -EINVAL; |
1247 | return -EINVAL; |
1257 | 1248 | ||
1258 | ret = i915_mutex_lock_interruptible(dev); |
1249 | ret = i915_mutex_lock_interruptible(dev); |
1259 | if (ret) |
1250 | if (ret) |
1260 | return ret; |
1251 | return ret; |
1261 | 1252 | ||
1262 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1253 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
1263 | if (&obj->base == NULL) { |
1254 | if (&obj->base == NULL) { |
1264 | ret = -ENOENT; |
1255 | ret = -ENOENT; |
1265 | goto unlock; |
1256 | goto unlock; |
1266 | } |
1257 | } |
1267 | 1258 | ||
1268 | /* Try to flush the object off the GPU without holding the lock. |
1259 | /* Try to flush the object off the GPU without holding the lock. |
1269 | * We will repeat the flush holding the lock in the normal manner |
1260 | * We will repeat the flush holding the lock in the normal manner |
1270 | * to catch cases where we are gazumped. |
1261 | * to catch cases where we are gazumped. |
1271 | */ |
1262 | */ |
1272 | ret = i915_gem_object_wait_rendering__nonblocking(obj, !write_domain); |
1263 | ret = i915_gem_object_wait_rendering__nonblocking(obj, !write_domain); |
1273 | if (ret) |
1264 | if (ret) |
1274 | goto unref; |
1265 | goto unref; |
1275 | 1266 | ||
1276 | if (read_domains & I915_GEM_DOMAIN_GTT) { |
1267 | if (read_domains & I915_GEM_DOMAIN_GTT) { |
1277 | ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0); |
1268 | ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0); |
1278 | 1269 | ||
1279 | /* Silently promote "you're not bound, there was nothing to do" |
1270 | /* Silently promote "you're not bound, there was nothing to do" |
1280 | * to success, since the client was just asking us to |
1271 | * to success, since the client was just asking us to |
1281 | * make sure everything was done. |
1272 | * make sure everything was done. |
1282 | */ |
1273 | */ |
1283 | if (ret == -EINVAL) |
1274 | if (ret == -EINVAL) |
1284 | ret = 0; |
1275 | ret = 0; |
1285 | } else { |
1276 | } else { |
1286 | ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0); |
1277 | ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0); |
1287 | } |
1278 | } |
1288 | 1279 | ||
1289 | unref: |
1280 | unref: |
1290 | drm_gem_object_unreference(&obj->base); |
1281 | drm_gem_object_unreference(&obj->base); |
1291 | unlock: |
1282 | unlock: |
1292 | mutex_unlock(&dev->struct_mutex); |
1283 | mutex_unlock(&dev->struct_mutex); |
1293 | return ret; |
1284 | return ret; |
1294 | } |
1285 | } |
1295 | 1286 | ||
1296 | 1287 | ||
1297 | 1288 | ||
1298 | 1289 | ||
1299 | 1290 | ||
1300 | 1291 | ||
1301 | /** |
1292 | /** |
1302 | * Maps the contents of an object, returning the address it is mapped |
1293 | * Maps the contents of an object, returning the address it is mapped |
1303 | * into. |
1294 | * into. |
1304 | * |
1295 | * |
1305 | * While the mapping holds a reference on the contents of the object, it doesn't |
1296 | * While the mapping holds a reference on the contents of the object, it doesn't |
1306 | * imply a ref on the object itself. |
1297 | * imply a ref on the object itself. |
1307 | */ |
1298 | */ |
1308 | int |
1299 | int |
1309 | i915_gem_mmap_ioctl(struct drm_device *dev, void *data, |
1300 | i915_gem_mmap_ioctl(struct drm_device *dev, void *data, |
1310 | struct drm_file *file) |
1301 | struct drm_file *file) |
1311 | { |
1302 | { |
1312 | struct drm_i915_gem_mmap *args = data; |
1303 | struct drm_i915_gem_mmap *args = data; |
1313 | struct drm_gem_object *obj; |
1304 | struct drm_gem_object *obj; |
1314 | unsigned long addr = 0; |
1305 | unsigned long addr = 0; |
1315 | 1306 | ||
1316 | if(args->handle == -2) |
1307 | if(args->handle == -2) |
1317 | { |
1308 | { |
1318 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
1309 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
1319 | return 0; |
1310 | return 0; |
1320 | } |
1311 | } |
1321 | 1312 | ||
1322 | obj = drm_gem_object_lookup(dev, file, args->handle); |
1313 | obj = drm_gem_object_lookup(dev, file, args->handle); |
1323 | if (obj == NULL) |
1314 | if (obj == NULL) |
1324 | return -ENOENT; |
1315 | return -ENOENT; |
1325 | 1316 | ||
1326 | //dbgprintf("%s offset %lld size %lld\n", |
1317 | //dbgprintf("%s offset %lld size %lld\n", |
1327 | // __FUNCTION__, args->offset, args->size); |
1318 | // __FUNCTION__, args->offset, args->size); |
1328 | /* prime objects have no backing filp to GEM mmap |
1319 | /* prime objects have no backing filp to GEM mmap |
1329 | * pages from. |
1320 | * pages from. |
1330 | */ |
1321 | */ |
1331 | if (!obj->filp) { |
1322 | if (!obj->filp) { |
1332 | drm_gem_object_unreference_unlocked(obj); |
1323 | drm_gem_object_unreference_unlocked(obj); |
1333 | return -EINVAL; |
1324 | return -EINVAL; |
1334 | } |
1325 | } |
1335 | 1326 | ||
1336 | addr = vm_mmap(obj->filp, 0, args->size, |
1327 | addr = vm_mmap(obj->filp, 0, args->size, |
1337 | PROT_READ | PROT_WRITE, MAP_SHARED, |
1328 | PROT_READ | PROT_WRITE, MAP_SHARED, |
1338 | args->offset); |
1329 | args->offset); |
1339 | drm_gem_object_unreference_unlocked(obj); |
1330 | drm_gem_object_unreference_unlocked(obj); |
1340 | if (IS_ERR((void *)addr)) |
1331 | if (IS_ERR((void *)addr)) |
1341 | return addr; |
1332 | return addr; |
1342 | 1333 | ||
1343 | args->addr_ptr = (uint64_t) addr; |
1334 | args->addr_ptr = (uint64_t) addr; |
1344 | 1335 | ||
1345 | return 0; |
1336 | return 0; |
1346 | } |
1337 | } |
1347 | 1338 | ||
1348 | 1339 | ||
1349 | 1340 | ||
1350 | 1341 | ||
1351 | 1342 | ||
1352 | 1343 | ||
1353 | 1344 | ||
1354 | 1345 | ||
1355 | 1346 | ||
1356 | 1347 | ||
1357 | 1348 | ||
1358 | 1349 | ||
1359 | 1350 | ||
1360 | /** |
1351 | /** |
1361 | * i915_gem_release_mmap - remove physical page mappings |
1352 | * i915_gem_release_mmap - remove physical page mappings |
1362 | * @obj: obj in question |
1353 | * @obj: obj in question |
1363 | * |
1354 | * |
1364 | * Preserve the reservation of the mmapping with the DRM core code, but |
1355 | * Preserve the reservation of the mmapping with the DRM core code, but |
1365 | * relinquish ownership of the pages back to the system. |
1356 | * relinquish ownership of the pages back to the system. |
1366 | * |
1357 | * |
1367 | * It is vital that we remove the page mapping if we have mapped a tiled |
1358 | * It is vital that we remove the page mapping if we have mapped a tiled |
1368 | * object through the GTT and then lose the fence register due to |
1359 | * object through the GTT and then lose the fence register due to |
1369 | * resource pressure. Similarly if the object has been moved out of the |
1360 | * resource pressure. Similarly if the object has been moved out of the |
1370 | * aperture, than pages mapped into userspace must be revoked. Removing the |
1361 | * aperture, than pages mapped into userspace must be revoked. Removing the |
1371 | * mapping will then trigger a page fault on the next user access, allowing |
1362 | * mapping will then trigger a page fault on the next user access, allowing |
1372 | * fixup by i915_gem_fault(). |
1363 | * fixup by i915_gem_fault(). |
1373 | */ |
1364 | */ |
1374 | void |
1365 | void |
1375 | i915_gem_release_mmap(struct drm_i915_gem_object *obj) |
1366 | i915_gem_release_mmap(struct drm_i915_gem_object *obj) |
1376 | { |
1367 | { |
1377 | if (!obj->fault_mappable) |
1368 | if (!obj->fault_mappable) |
1378 | return; |
1369 | return; |
1379 | 1370 | ||
1380 | if (obj->base.dev->dev_mapping) |
1371 | if (obj->base.dev->dev_mapping) |
1381 | // unmap_mapping_range(obj->base.dev->dev_mapping, |
1372 | // unmap_mapping_range(obj->base.dev->dev_mapping, |
1382 | // (loff_t)obj->base.map_list.hash.key< |
1373 | // (loff_t)obj->base.map_list.hash.key< |
1383 | // obj->base.size, 1); |
1374 | // obj->base.size, 1); |
1384 | 1375 | ||
1385 | obj->fault_mappable = false; |
1376 | obj->fault_mappable = false; |
1386 | } |
1377 | } |
1387 | 1378 | ||
1388 | uint32_t |
1379 | uint32_t |
1389 | i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode) |
1380 | i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode) |
1390 | { |
1381 | { |
1391 | uint32_t gtt_size; |
1382 | uint32_t gtt_size; |
1392 | 1383 | ||
1393 | if (INTEL_INFO(dev)->gen >= 4 || |
1384 | if (INTEL_INFO(dev)->gen >= 4 || |
1394 | tiling_mode == I915_TILING_NONE) |
1385 | tiling_mode == I915_TILING_NONE) |
1395 | return size; |
1386 | return size; |
1396 | 1387 | ||
1397 | /* Previous chips need a power-of-two fence region when tiling */ |
1388 | /* Previous chips need a power-of-two fence region when tiling */ |
1398 | if (INTEL_INFO(dev)->gen == 3) |
1389 | if (INTEL_INFO(dev)->gen == 3) |
1399 | gtt_size = 1024*1024; |
1390 | gtt_size = 1024*1024; |
1400 | else |
1391 | else |
1401 | gtt_size = 512*1024; |
1392 | gtt_size = 512*1024; |
1402 | 1393 | ||
1403 | while (gtt_size < size) |
1394 | while (gtt_size < size) |
1404 | gtt_size <<= 1; |
1395 | gtt_size <<= 1; |
1405 | 1396 | ||
1406 | return gtt_size; |
1397 | return gtt_size; |
1407 | } |
1398 | } |
1408 | 1399 | ||
1409 | /** |
1400 | /** |
1410 | * i915_gem_get_gtt_alignment - return required GTT alignment for an object |
1401 | * i915_gem_get_gtt_alignment - return required GTT alignment for an object |
1411 | * @obj: object to check |
1402 | * @obj: object to check |
1412 | * |
1403 | * |
1413 | * Return the required GTT alignment for an object, taking into account |
1404 | * Return the required GTT alignment for an object, taking into account |
1414 | * potential fence register mapping. |
1405 | * potential fence register mapping. |
1415 | */ |
1406 | */ |
1416 | uint32_t |
1407 | uint32_t |
1417 | i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, |
1408 | i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size, |
1418 | int tiling_mode, bool fenced) |
1409 | int tiling_mode, bool fenced) |
1419 | { |
1410 | { |
1420 | /* |
1411 | /* |
1421 | * Minimum alignment is 4k (GTT page size), but might be greater |
1412 | * Minimum alignment is 4k (GTT page size), but might be greater |
1422 | * if a fence register is needed for the object. |
1413 | * if a fence register is needed for the object. |
1423 | */ |
1414 | */ |
1424 | if (INTEL_INFO(dev)->gen >= 4 || (!fenced && IS_G33(dev)) || |
1415 | if (INTEL_INFO(dev)->gen >= 4 || (!fenced && IS_G33(dev)) || |
1425 | tiling_mode == I915_TILING_NONE) |
1416 | tiling_mode == I915_TILING_NONE) |
1426 | return 4096; |
1417 | return 4096; |
1427 | 1418 | ||
1428 | /* |
1419 | /* |
1429 | * Previous chips need to be aligned to the size of the smallest |
1420 | * Previous chips need to be aligned to the size of the smallest |
1430 | * fence register that can contain the object. |
1421 | * fence register that can contain the object. |
1431 | */ |
1422 | */ |
1432 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1423 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1433 | } |
1424 | } |
1434 | 1425 | ||
1435 | /** |
1426 | /** |
1436 | * i915_gem_get_unfenced_gtt_alignment - return required GTT alignment for an |
1427 | * i915_gem_get_unfenced_gtt_alignment - return required GTT alignment for an |
1437 | * unfenced object |
1428 | * unfenced object |
1438 | * @dev: the device |
1429 | * @dev: the device |
1439 | * @size: size of the object |
1430 | * @size: size of the object |
1440 | * @tiling_mode: tiling mode of the object |
1431 | * @tiling_mode: tiling mode of the object |
1441 | * |
1432 | * |
1442 | * Return the required GTT alignment for an object, only taking into account |
1433 | * Return the required GTT alignment for an object, only taking into account |
1443 | * unfenced tiled surface requirements. |
1434 | * unfenced tiled surface requirements. |
1444 | */ |
1435 | */ |
1445 | uint32_t |
1436 | uint32_t |
1446 | i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev, |
1437 | i915_gem_get_unfenced_gtt_alignment(struct drm_device *dev, |
1447 | uint32_t size, |
1438 | uint32_t size, |
1448 | int tiling_mode) |
1439 | int tiling_mode) |
1449 | { |
1440 | { |
1450 | /* |
1441 | /* |
1451 | * Minimum alignment is 4k (GTT page size) for sane hw. |
1442 | * Minimum alignment is 4k (GTT page size) for sane hw. |
1452 | */ |
1443 | */ |
1453 | if (INTEL_INFO(dev)->gen >= 4 || IS_G33(dev) || |
1444 | if (INTEL_INFO(dev)->gen >= 4 || IS_G33(dev) || |
1454 | tiling_mode == I915_TILING_NONE) |
1445 | tiling_mode == I915_TILING_NONE) |
1455 | return 4096; |
1446 | return 4096; |
1456 | 1447 | ||
1457 | /* Previous hardware however needs to be aligned to a power-of-two |
1448 | /* Previous hardware however needs to be aligned to a power-of-two |
1458 | * tile height. The simplest method for determining this is to reuse |
1449 | * tile height. The simplest method for determining this is to reuse |
1459 | * the power-of-tile object size. |
1450 | * the power-of-tile object size. |
1460 | */ |
1451 | */ |
1461 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1452 | return i915_gem_get_gtt_size(dev, size, tiling_mode); |
1462 | } |
1453 | } |
1463 | 1454 | ||
1464 | int |
1455 | int |
1465 | i915_gem_mmap_gtt(struct drm_file *file, |
1456 | i915_gem_mmap_gtt(struct drm_file *file, |
1466 | struct drm_device *dev, |
1457 | struct drm_device *dev, |
1467 | uint32_t handle, |
1458 | uint32_t handle, |
1468 | uint64_t *offset) |
1459 | uint64_t *offset) |
1469 | { |
1460 | { |
1470 | struct drm_i915_private *dev_priv = dev->dev_private; |
1461 | struct drm_i915_private *dev_priv = dev->dev_private; |
1471 | struct drm_i915_gem_object *obj; |
1462 | struct drm_i915_gem_object *obj; |
1472 | unsigned long pfn; |
1463 | unsigned long pfn; |
1473 | char *mem, *ptr; |
1464 | char *mem, *ptr; |
1474 | int ret; |
1465 | int ret; |
1475 | 1466 | ||
1476 | ret = i915_mutex_lock_interruptible(dev); |
1467 | ret = i915_mutex_lock_interruptible(dev); |
1477 | if (ret) |
1468 | if (ret) |
1478 | return ret; |
1469 | return ret; |
1479 | 1470 | ||
1480 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
1471 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle)); |
1481 | if (&obj->base == NULL) { |
1472 | if (&obj->base == NULL) { |
1482 | ret = -ENOENT; |
1473 | ret = -ENOENT; |
1483 | goto unlock; |
1474 | goto unlock; |
1484 | } |
1475 | } |
1485 | 1476 | ||
1486 | if (obj->base.size > dev_priv->gtt.mappable_end) { |
1477 | if (obj->base.size > dev_priv->gtt.mappable_end) { |
1487 | ret = -E2BIG; |
1478 | ret = -E2BIG; |
1488 | goto out; |
1479 | goto out; |
1489 | } |
1480 | } |
1490 | 1481 | ||
1491 | if (obj->madv != I915_MADV_WILLNEED) { |
1482 | if (obj->madv != I915_MADV_WILLNEED) { |
1492 | DRM_ERROR("Attempting to mmap a purgeable buffer\n"); |
1483 | DRM_ERROR("Attempting to mmap a purgeable buffer\n"); |
1493 | ret = -EINVAL; |
1484 | ret = -EINVAL; |
1494 | goto out; |
1485 | goto out; |
1495 | } |
1486 | } |
1496 | /* Now bind it into the GTT if needed */ |
1487 | /* Now bind it into the GTT if needed */ |
1497 | ret = i915_gem_object_pin(obj, 0, true, false); |
1488 | ret = i915_gem_object_pin(obj, 0, true, false); |
1498 | if (ret) |
1489 | if (ret) |
1499 | goto out; |
1490 | goto out; |
1500 | 1491 | ||
1501 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
1492 | ret = i915_gem_object_set_to_gtt_domain(obj, 1); |
1502 | if (ret) |
1493 | if (ret) |
1503 | goto unpin; |
1494 | goto unpin; |
1504 | 1495 | ||
1505 | ret = i915_gem_object_get_fence(obj); |
1496 | ret = i915_gem_object_get_fence(obj); |
1506 | if (ret) |
1497 | if (ret) |
1507 | goto unpin; |
1498 | goto unpin; |
1508 | 1499 | ||
1509 | obj->fault_mappable = true; |
1500 | obj->fault_mappable = true; |
1510 | 1501 | ||
1511 | pfn = dev_priv->gtt.mappable_base + obj->gtt_offset; |
1502 | pfn = dev_priv->gtt.mappable_base + obj->gtt_offset; |
1512 | 1503 | ||
1513 | /* Finally, remap it using the new GTT offset */ |
1504 | /* Finally, remap it using the new GTT offset */ |
1514 | 1505 | ||
1515 | mem = UserAlloc(obj->base.size); |
1506 | mem = UserAlloc(obj->base.size); |
1516 | if(unlikely(mem == NULL)) |
1507 | if(unlikely(mem == NULL)) |
1517 | { |
1508 | { |
1518 | ret = -ENOMEM; |
1509 | ret = -ENOMEM; |
1519 | goto unpin; |
1510 | goto unpin; |
1520 | } |
1511 | } |
1521 | 1512 | ||
1522 | for(ptr = mem; ptr < mem + obj->base.size; ptr+= 4096, pfn+= 4096) |
1513 | for(ptr = mem; ptr < mem + obj->base.size; ptr+= 4096, pfn+= 4096) |
1523 | MapPage(ptr, pfn, PG_SHARED|PG_UW); |
1514 | MapPage(ptr, pfn, PG_SHARED|PG_UW); |
1524 | 1515 | ||
1525 | unpin: |
1516 | unpin: |
1526 | i915_gem_object_unpin(obj); |
1517 | i915_gem_object_unpin(obj); |
1527 | 1518 | ||
1528 | 1519 | ||
1529 | *offset = (u64)mem; |
1520 | *offset = (u64)mem; |
1530 | 1521 | ||
1531 | out: |
1522 | out: |
1532 | drm_gem_object_unreference(&obj->base); |
1523 | drm_gem_object_unreference(&obj->base); |
1533 | unlock: |
1524 | unlock: |
1534 | mutex_unlock(&dev->struct_mutex); |
1525 | mutex_unlock(&dev->struct_mutex); |
1535 | return ret; |
1526 | return ret; |
1536 | } |
1527 | } |
1537 | 1528 | ||
1538 | /** |
1529 | /** |
1539 | * i915_gem_mmap_gtt_ioctl - prepare an object for GTT mmap'ing |
1530 | * i915_gem_mmap_gtt_ioctl - prepare an object for GTT mmap'ing |
1540 | * @dev: DRM device |
1531 | * @dev: DRM device |
1541 | * @data: GTT mapping ioctl data |
1532 | * @data: GTT mapping ioctl data |
1542 | * @file: GEM object info |
1533 | * @file: GEM object info |
1543 | * |
1534 | * |
1544 | * Simply returns the fake offset to userspace so it can mmap it. |
1535 | * Simply returns the fake offset to userspace so it can mmap it. |
1545 | * The mmap call will end up in drm_gem_mmap(), which will set things |
1536 | * The mmap call will end up in drm_gem_mmap(), which will set things |
1546 | * up so we can get faults in the handler above. |
1537 | * up so we can get faults in the handler above. |
1547 | * |
1538 | * |
1548 | * The fault handler will take care of binding the object into the GTT |
1539 | * The fault handler will take care of binding the object into the GTT |
1549 | * (since it may have been evicted to make room for something), allocating |
1540 | * (since it may have been evicted to make room for something), allocating |
1550 | * a fence register, and mapping the appropriate aperture address into |
1541 | * a fence register, and mapping the appropriate aperture address into |
1551 | * userspace. |
1542 | * userspace. |
1552 | */ |
1543 | */ |
1553 | int |
1544 | int |
1554 | i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, |
1545 | i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, |
1555 | struct drm_file *file) |
1546 | struct drm_file *file) |
1556 | { |
1547 | { |
1557 | struct drm_i915_gem_mmap_gtt *args = data; |
1548 | struct drm_i915_gem_mmap_gtt *args = data; |
1558 | 1549 | ||
1559 | return i915_gem_mmap_gtt(file, dev, args->handle, &args->offset); |
1550 | return i915_gem_mmap_gtt(file, dev, args->handle, &args->offset); |
1560 | } |
1551 | } |
1561 | 1552 | ||
1562 | /* Immediately discard the backing storage */ |
1553 | /* Immediately discard the backing storage */ |
1563 | static void |
1554 | static void |
1564 | i915_gem_object_truncate(struct drm_i915_gem_object *obj) |
1555 | i915_gem_object_truncate(struct drm_i915_gem_object *obj) |
1565 | { |
1556 | { |
1566 | // struct inode *inode; |
1557 | // struct inode *inode; |
1567 | 1558 | ||
1568 | // i915_gem_object_free_mmap_offset(obj); |
1559 | // i915_gem_object_free_mmap_offset(obj); |
1569 | 1560 | ||
1570 | if (obj->base.filp == NULL) |
1561 | if (obj->base.filp == NULL) |
1571 | return; |
1562 | return; |
1572 | 1563 | ||
1573 | /* Our goal here is to return as much of the memory as |
1564 | /* Our goal here is to return as much of the memory as |
1574 | * is possible back to the system as we are called from OOM. |
1565 | * is possible back to the system as we are called from OOM. |
1575 | * To do this we must instruct the shmfs to drop all of its |
1566 | * To do this we must instruct the shmfs to drop all of its |
1576 | * backing pages, *now*. |
1567 | * backing pages, *now*. |
1577 | */ |
1568 | */ |
1578 | // inode = obj->base.filp->f_path.dentry->d_inode; |
1569 | // inode = obj->base.filp->f_path.dentry->d_inode; |
1579 | // shmem_truncate_range(inode, 0, (loff_t)-1); |
1570 | // shmem_truncate_range(inode, 0, (loff_t)-1); |
1580 | 1571 | ||
1581 | obj->madv = __I915_MADV_PURGED; |
1572 | obj->madv = __I915_MADV_PURGED; |
1582 | } |
1573 | } |
1583 | 1574 | ||
1584 | static inline int |
1575 | static inline int |
1585 | i915_gem_object_is_purgeable(struct drm_i915_gem_object *obj) |
1576 | i915_gem_object_is_purgeable(struct drm_i915_gem_object *obj) |
1586 | { |
1577 | { |
1587 | return obj->madv == I915_MADV_DONTNEED; |
1578 | return obj->madv == I915_MADV_DONTNEED; |
1588 | } |
1579 | } |
1589 | 1580 | ||
1590 | static void |
1581 | static void |
1591 | i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj) |
1582 | i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj) |
1592 | { |
1583 | { |
1593 | int page_count = obj->base.size / PAGE_SIZE; |
- | |
1594 | struct scatterlist *sg; |
1584 | struct sg_page_iter sg_iter; |
1595 | int ret, i; |
1585 | int ret; |
1596 | 1586 | ||
1597 | BUG_ON(obj->madv == __I915_MADV_PURGED); |
1587 | BUG_ON(obj->madv == __I915_MADV_PURGED); |
1598 | 1588 | ||
1599 | ret = i915_gem_object_set_to_cpu_domain(obj, true); |
1589 | ret = i915_gem_object_set_to_cpu_domain(obj, true); |
1600 | if (ret) { |
1590 | if (ret) { |
1601 | /* In the event of a disaster, abandon all caches and |
1591 | /* In the event of a disaster, abandon all caches and |
1602 | * hope for the best. |
1592 | * hope for the best. |
1603 | */ |
1593 | */ |
1604 | WARN_ON(ret != -EIO); |
1594 | WARN_ON(ret != -EIO); |
1605 | i915_gem_clflush_object(obj); |
1595 | i915_gem_clflush_object(obj); |
1606 | obj->base.read_domains = obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
1596 | obj->base.read_domains = obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
1607 | } |
1597 | } |
1608 | 1598 | ||
1609 | if (obj->madv == I915_MADV_DONTNEED) |
1599 | if (obj->madv == I915_MADV_DONTNEED) |
1610 | obj->dirty = 0; |
1600 | obj->dirty = 0; |
1611 | 1601 | ||
1612 | for_each_sg(obj->pages->sgl, sg, page_count, i) { |
1602 | for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) { |
1613 | struct page *page = sg_page(sg); |
1603 | struct page *page = sg_page_iter_page(&sg_iter); |
1614 | 1604 | ||
1615 | page_cache_release(page); |
1605 | page_cache_release(page); |
1616 | } |
1606 | } |
1617 | //DRM_DEBUG_KMS("%s release %d pages\n", __FUNCTION__, page_count); |
1607 | //DRM_DEBUG_KMS("%s release %d pages\n", __FUNCTION__, page_count); |
1618 | 1608 | ||
1619 | obj->dirty = 0; |
1609 | obj->dirty = 0; |
1620 | 1610 | ||
1621 | sg_free_table(obj->pages); |
1611 | sg_free_table(obj->pages); |
1622 | kfree(obj->pages); |
1612 | kfree(obj->pages); |
1623 | } |
1613 | } |
1624 | 1614 | ||
1625 | int |
1615 | int |
1626 | i915_gem_object_put_pages(struct drm_i915_gem_object *obj) |
1616 | i915_gem_object_put_pages(struct drm_i915_gem_object *obj) |
1627 | { |
1617 | { |
1628 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1618 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1629 | 1619 | ||
1630 | if (obj->pages == NULL) |
1620 | if (obj->pages == NULL) |
1631 | return 0; |
1621 | return 0; |
1632 | 1622 | ||
1633 | BUG_ON(obj->gtt_space); |
1623 | BUG_ON(obj->gtt_space); |
1634 | 1624 | ||
1635 | if (obj->pages_pin_count) |
1625 | if (obj->pages_pin_count) |
1636 | return -EBUSY; |
1626 | return -EBUSY; |
1637 | 1627 | ||
1638 | /* ->put_pages might need to allocate memory for the bit17 swizzle |
1628 | /* ->put_pages might need to allocate memory for the bit17 swizzle |
1639 | * array, hence protect them from being reaped by removing them from gtt |
1629 | * array, hence protect them from being reaped by removing them from gtt |
1640 | * lists early. */ |
1630 | * lists early. */ |
1641 | list_del(&obj->gtt_list); |
1631 | list_del(&obj->gtt_list); |
1642 | 1632 | ||
1643 | ops->put_pages(obj); |
1633 | ops->put_pages(obj); |
1644 | obj->pages = NULL; |
1634 | obj->pages = NULL; |
1645 | 1635 | ||
1646 | if (i915_gem_object_is_purgeable(obj)) |
1636 | if (i915_gem_object_is_purgeable(obj)) |
1647 | i915_gem_object_truncate(obj); |
1637 | i915_gem_object_truncate(obj); |
1648 | 1638 | ||
1649 | return 0; |
1639 | return 0; |
1650 | } |
1640 | } |
1651 | 1641 | ||
1652 | 1642 | ||
1653 | 1643 | ||
1654 | 1644 | ||
1655 | 1645 | ||
1656 | 1646 | ||
1657 | 1647 | ||
1658 | 1648 | ||
1659 | static int |
1649 | static int |
1660 | i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj) |
1650 | i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj) |
1661 | { |
1651 | { |
1662 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1652 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1663 | int page_count, i; |
1653 | int page_count, i; |
1664 | struct address_space *mapping; |
- | |
1665 | struct sg_table *st; |
1654 | struct sg_table *st; |
1666 | struct scatterlist *sg; |
1655 | struct scatterlist *sg; |
- | 1656 | struct sg_page_iter sg_iter; |
|
1667 | struct page *page; |
1657 | struct page *page; |
- | 1658 | unsigned long last_pfn = 0; /* suppress gcc warning */ |
|
1668 | gfp_t gfp; |
1659 | gfp_t gfp; |
1669 | 1660 | ||
1670 | /* Assert that the object is not currently in any GPU domain. As it |
1661 | /* Assert that the object is not currently in any GPU domain. As it |
1671 | * wasn't in the GTT, there shouldn't be any way it could have been in |
1662 | * wasn't in the GTT, there shouldn't be any way it could have been in |
1672 | * a GPU cache |
1663 | * a GPU cache |
1673 | */ |
1664 | */ |
1674 | BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS); |
1665 | BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS); |
1675 | BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS); |
1666 | BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS); |
1676 | 1667 | ||
1677 | st = kmalloc(sizeof(*st), GFP_KERNEL); |
1668 | st = kmalloc(sizeof(*st), GFP_KERNEL); |
1678 | if (st == NULL) |
1669 | if (st == NULL) |
1679 | return -ENOMEM; |
1670 | return -ENOMEM; |
1680 | 1671 | ||
1681 | page_count = obj->base.size / PAGE_SIZE; |
1672 | page_count = obj->base.size / PAGE_SIZE; |
1682 | if (sg_alloc_table(st, page_count, GFP_KERNEL)) { |
1673 | if (sg_alloc_table(st, page_count, GFP_KERNEL)) { |
1683 | sg_free_table(st); |
1674 | sg_free_table(st); |
1684 | kfree(st); |
1675 | kfree(st); |
- | 1676 | FAIL(); |
|
1685 | return -ENOMEM; |
1677 | return -ENOMEM; |
1686 | } |
1678 | } |
1687 | 1679 | ||
1688 | /* Get the list of pages out of our struct file. They'll be pinned |
1680 | /* Get the list of pages out of our struct file. They'll be pinned |
1689 | * at this point until we release them. |
1681 | * at this point until we release them. |
1690 | * |
1682 | * |
1691 | * Fail silently without starting the shrinker |
1683 | * Fail silently without starting the shrinker |
1692 | */ |
1684 | */ |
- | 1685 | sg = st->sgl; |
|
- | 1686 | st->nents = 0; |
|
1693 | for_each_sg(st->sgl, sg, page_count, i) { |
1687 | for (i = 0; i < page_count; i++) { |
1694 | page = shmem_read_mapping_page_gfp(obj->base.filp, i, gfp); |
1688 | page = shmem_read_mapping_page_gfp(obj->base.filp, i, gfp); |
1695 | if (IS_ERR(page)) { |
1689 | if (IS_ERR(page)) { |
1696 | dbgprintf("%s invalid page %p\n", __FUNCTION__, page); |
1690 | dbgprintf("%s invalid page %p\n", __FUNCTION__, page); |
1697 | goto err_pages; |
1691 | goto err_pages; |
1698 | 1692 | ||
1699 | } |
1693 | } |
- | 1694 | ||
- | 1695 | if (!i || page_to_pfn(page) != last_pfn + 1) { |
|
- | 1696 | if (i) |
|
- | 1697 | sg = sg_next(sg); |
|
- | 1698 | st->nents++; |
|
1700 | sg_set_page(sg, page, PAGE_SIZE, 0); |
1699 | sg_set_page(sg, page, PAGE_SIZE, 0); |
- | 1700 | } else { |
|
- | 1701 | sg->length += PAGE_SIZE; |
|
- | 1702 | } |
|
- | 1703 | last_pfn = page_to_pfn(page); |
|
1701 | } |
1704 | } |
- | 1705 | ||
1702 | 1706 | sg_mark_end(sg); |
|
1703 | obj->pages = st; |
- | |
1704 | - | ||
1705 | // DRM_DEBUG_KMS("%s alloc %d pages\n", __FUNCTION__, page_count); |
1707 | obj->pages = st; |
1706 | 1708 | ||
1707 | return 0; |
1709 | return 0; |
1708 | 1710 | ||
1709 | err_pages: |
1711 | err_pages: |
- | 1712 | sg_mark_end(sg); |
|
1710 | for_each_sg(st->sgl, sg, i, page_count) |
1713 | for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) |
1711 | page_cache_release(sg_page(sg)); |
1714 | page_cache_release(sg_page_iter_page(&sg_iter)); |
1712 | sg_free_table(st); |
1715 | sg_free_table(st); |
1713 | kfree(st); |
1716 | kfree(st); |
- | 1717 | FAIL(); |
|
1714 | return PTR_ERR(page); |
1718 | return PTR_ERR(page); |
1715 | } |
1719 | } |
1716 | 1720 | ||
1717 | /* Ensure that the associated pages are gathered from the backing storage |
1721 | /* Ensure that the associated pages are gathered from the backing storage |
1718 | * and pinned into our object. i915_gem_object_get_pages() may be called |
1722 | * and pinned into our object. i915_gem_object_get_pages() may be called |
1719 | * multiple times before they are released by a single call to |
1723 | * multiple times before they are released by a single call to |
1720 | * i915_gem_object_put_pages() - once the pages are no longer referenced |
1724 | * i915_gem_object_put_pages() - once the pages are no longer referenced |
1721 | * either as a result of memory pressure (reaping pages under the shrinker) |
1725 | * either as a result of memory pressure (reaping pages under the shrinker) |
1722 | * or as the object is itself released. |
1726 | * or as the object is itself released. |
1723 | */ |
1727 | */ |
1724 | int |
1728 | int |
1725 | i915_gem_object_get_pages(struct drm_i915_gem_object *obj) |
1729 | i915_gem_object_get_pages(struct drm_i915_gem_object *obj) |
1726 | { |
1730 | { |
1727 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1731 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
1728 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1732 | const struct drm_i915_gem_object_ops *ops = obj->ops; |
1729 | int ret; |
1733 | int ret; |
1730 | 1734 | ||
1731 | if (obj->pages) |
1735 | if (obj->pages) |
1732 | return 0; |
1736 | return 0; |
1733 | 1737 | ||
1734 | BUG_ON(obj->pages_pin_count); |
1738 | BUG_ON(obj->pages_pin_count); |
1735 | 1739 | ||
1736 | ret = ops->get_pages(obj); |
1740 | ret = ops->get_pages(obj); |
1737 | if (ret) |
1741 | if (ret) |
1738 | return ret; |
1742 | return ret; |
1739 | 1743 | ||
1740 | list_add_tail(&obj->gtt_list, &dev_priv->mm.unbound_list); |
1744 | list_add_tail(&obj->gtt_list, &dev_priv->mm.unbound_list); |
1741 | return 0; |
1745 | return 0; |
1742 | } |
1746 | } |
1743 | 1747 | ||
1744 | void |
1748 | void |
1745 | i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, |
1749 | i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, |
1746 | struct intel_ring_buffer *ring) |
1750 | struct intel_ring_buffer *ring) |
1747 | { |
1751 | { |
1748 | struct drm_device *dev = obj->base.dev; |
1752 | struct drm_device *dev = obj->base.dev; |
1749 | struct drm_i915_private *dev_priv = dev->dev_private; |
1753 | struct drm_i915_private *dev_priv = dev->dev_private; |
1750 | u32 seqno = intel_ring_get_seqno(ring); |
1754 | u32 seqno = intel_ring_get_seqno(ring); |
1751 | 1755 | ||
1752 | BUG_ON(ring == NULL); |
1756 | BUG_ON(ring == NULL); |
1753 | obj->ring = ring; |
1757 | obj->ring = ring; |
1754 | 1758 | ||
1755 | /* Add a reference if we're newly entering the active list. */ |
1759 | /* Add a reference if we're newly entering the active list. */ |
1756 | if (!obj->active) { |
1760 | if (!obj->active) { |
1757 | drm_gem_object_reference(&obj->base); |
1761 | drm_gem_object_reference(&obj->base); |
1758 | obj->active = 1; |
1762 | obj->active = 1; |
1759 | } |
1763 | } |
1760 | 1764 | ||
1761 | /* Move from whatever list we were on to the tail of execution. */ |
1765 | /* Move from whatever list we were on to the tail of execution. */ |
1762 | list_move_tail(&obj->mm_list, &dev_priv->mm.active_list); |
1766 | list_move_tail(&obj->mm_list, &dev_priv->mm.active_list); |
1763 | list_move_tail(&obj->ring_list, &ring->active_list); |
1767 | list_move_tail(&obj->ring_list, &ring->active_list); |
1764 | 1768 | ||
1765 | obj->last_read_seqno = seqno; |
1769 | obj->last_read_seqno = seqno; |
1766 | 1770 | ||
1767 | if (obj->fenced_gpu_access) { |
1771 | if (obj->fenced_gpu_access) { |
1768 | obj->last_fenced_seqno = seqno; |
1772 | obj->last_fenced_seqno = seqno; |
1769 | 1773 | ||
1770 | /* Bump MRU to take account of the delayed flush */ |
1774 | /* Bump MRU to take account of the delayed flush */ |
1771 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
1775 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
1772 | struct drm_i915_fence_reg *reg; |
1776 | struct drm_i915_fence_reg *reg; |
1773 | 1777 | ||
1774 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
1778 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
1775 | list_move_tail(®->lru_list, |
1779 | list_move_tail(®->lru_list, |
1776 | &dev_priv->mm.fence_list); |
1780 | &dev_priv->mm.fence_list); |
1777 | } |
1781 | } |
1778 | } |
1782 | } |
1779 | } |
1783 | } |
1780 | 1784 | ||
1781 | static void |
1785 | static void |
1782 | i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) |
1786 | i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) |
1783 | { |
1787 | { |
1784 | struct drm_device *dev = obj->base.dev; |
1788 | struct drm_device *dev = obj->base.dev; |
1785 | struct drm_i915_private *dev_priv = dev->dev_private; |
1789 | struct drm_i915_private *dev_priv = dev->dev_private; |
1786 | 1790 | ||
1787 | BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); |
1791 | BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); |
1788 | BUG_ON(!obj->active); |
1792 | BUG_ON(!obj->active); |
1789 | 1793 | ||
1790 | list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
1794 | list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
1791 | 1795 | ||
1792 | list_del_init(&obj->ring_list); |
1796 | list_del_init(&obj->ring_list); |
1793 | obj->ring = NULL; |
1797 | obj->ring = NULL; |
1794 | 1798 | ||
1795 | obj->last_read_seqno = 0; |
1799 | obj->last_read_seqno = 0; |
1796 | obj->last_write_seqno = 0; |
1800 | obj->last_write_seqno = 0; |
1797 | obj->base.write_domain = 0; |
1801 | obj->base.write_domain = 0; |
1798 | 1802 | ||
1799 | obj->last_fenced_seqno = 0; |
1803 | obj->last_fenced_seqno = 0; |
1800 | obj->fenced_gpu_access = false; |
1804 | obj->fenced_gpu_access = false; |
1801 | 1805 | ||
1802 | obj->active = 0; |
1806 | obj->active = 0; |
1803 | drm_gem_object_unreference(&obj->base); |
1807 | drm_gem_object_unreference(&obj->base); |
1804 | 1808 | ||
1805 | WARN_ON(i915_verify_lists(dev)); |
1809 | WARN_ON(i915_verify_lists(dev)); |
1806 | } |
1810 | } |
1807 | 1811 | ||
1808 | static int |
1812 | static int |
1809 | i915_gem_init_seqno(struct drm_device *dev, u32 seqno) |
1813 | i915_gem_init_seqno(struct drm_device *dev, u32 seqno) |
1810 | { |
1814 | { |
1811 | struct drm_i915_private *dev_priv = dev->dev_private; |
1815 | struct drm_i915_private *dev_priv = dev->dev_private; |
1812 | struct intel_ring_buffer *ring; |
1816 | struct intel_ring_buffer *ring; |
1813 | int ret, i, j; |
1817 | int ret, i, j; |
1814 | 1818 | ||
1815 | /* Carefully retire all requests without writing to the rings */ |
1819 | /* Carefully retire all requests without writing to the rings */ |
1816 | for_each_ring(ring, dev_priv, i) { |
1820 | for_each_ring(ring, dev_priv, i) { |
1817 | ret = intel_ring_idle(ring); |
1821 | ret = intel_ring_idle(ring); |
1818 | if (ret) |
1822 | if (ret) |
1819 | return ret; |
1823 | return ret; |
1820 | } |
1824 | } |
1821 | i915_gem_retire_requests(dev); |
1825 | i915_gem_retire_requests(dev); |
1822 | 1826 | ||
1823 | /* Finally reset hw state */ |
1827 | /* Finally reset hw state */ |
1824 | for_each_ring(ring, dev_priv, i) { |
1828 | for_each_ring(ring, dev_priv, i) { |
1825 | intel_ring_init_seqno(ring, seqno); |
1829 | intel_ring_init_seqno(ring, seqno); |
1826 | 1830 | ||
1827 | for (j = 0; j < ARRAY_SIZE(ring->sync_seqno); j++) |
1831 | for (j = 0; j < ARRAY_SIZE(ring->sync_seqno); j++) |
1828 | ring->sync_seqno[j] = 0; |
1832 | ring->sync_seqno[j] = 0; |
1829 | } |
1833 | } |
1830 | 1834 | ||
1831 | return 0; |
1835 | return 0; |
1832 | } |
1836 | } |
1833 | 1837 | ||
1834 | int i915_gem_set_seqno(struct drm_device *dev, u32 seqno) |
1838 | int i915_gem_set_seqno(struct drm_device *dev, u32 seqno) |
1835 | { |
1839 | { |
1836 | struct drm_i915_private *dev_priv = dev->dev_private; |
1840 | struct drm_i915_private *dev_priv = dev->dev_private; |
1837 | int ret; |
1841 | int ret; |
1838 | 1842 | ||
1839 | if (seqno == 0) |
1843 | if (seqno == 0) |
1840 | return -EINVAL; |
1844 | return -EINVAL; |
1841 | 1845 | ||
1842 | /* HWS page needs to be set less than what we |
1846 | /* HWS page needs to be set less than what we |
1843 | * will inject to ring |
1847 | * will inject to ring |
1844 | */ |
1848 | */ |
1845 | ret = i915_gem_init_seqno(dev, seqno - 1); |
1849 | ret = i915_gem_init_seqno(dev, seqno - 1); |
1846 | if (ret) |
1850 | if (ret) |
1847 | return ret; |
1851 | return ret; |
1848 | 1852 | ||
1849 | /* Carefully set the last_seqno value so that wrap |
1853 | /* Carefully set the last_seqno value so that wrap |
1850 | * detection still works |
1854 | * detection still works |
1851 | */ |
1855 | */ |
1852 | dev_priv->next_seqno = seqno; |
1856 | dev_priv->next_seqno = seqno; |
1853 | dev_priv->last_seqno = seqno - 1; |
1857 | dev_priv->last_seqno = seqno - 1; |
1854 | if (dev_priv->last_seqno == 0) |
1858 | if (dev_priv->last_seqno == 0) |
1855 | dev_priv->last_seqno--; |
1859 | dev_priv->last_seqno--; |
1856 | 1860 | ||
1857 | return 0; |
1861 | return 0; |
1858 | } |
1862 | } |
1859 | 1863 | ||
1860 | int |
1864 | int |
1861 | i915_gem_get_seqno(struct drm_device *dev, u32 *seqno) |
1865 | i915_gem_get_seqno(struct drm_device *dev, u32 *seqno) |
1862 | { |
1866 | { |
1863 | struct drm_i915_private *dev_priv = dev->dev_private; |
1867 | struct drm_i915_private *dev_priv = dev->dev_private; |
1864 | 1868 | ||
1865 | /* reserve 0 for non-seqno */ |
1869 | /* reserve 0 for non-seqno */ |
1866 | if (dev_priv->next_seqno == 0) { |
1870 | if (dev_priv->next_seqno == 0) { |
1867 | int ret = i915_gem_init_seqno(dev, 0); |
1871 | int ret = i915_gem_init_seqno(dev, 0); |
1868 | if (ret) |
1872 | if (ret) |
1869 | return ret; |
1873 | return ret; |
1870 | 1874 | ||
1871 | dev_priv->next_seqno = 1; |
1875 | dev_priv->next_seqno = 1; |
1872 | } |
1876 | } |
1873 | 1877 | ||
1874 | *seqno = dev_priv->last_seqno = dev_priv->next_seqno++; |
1878 | *seqno = dev_priv->last_seqno = dev_priv->next_seqno++; |
1875 | return 0; |
1879 | return 0; |
1876 | } |
1880 | } |
1877 | 1881 | ||
1878 | int |
1882 | int |
1879 | i915_add_request(struct intel_ring_buffer *ring, |
1883 | i915_add_request(struct intel_ring_buffer *ring, |
1880 | struct drm_file *file, |
1884 | struct drm_file *file, |
1881 | u32 *out_seqno) |
1885 | u32 *out_seqno) |
1882 | { |
1886 | { |
1883 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
1887 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
1884 | struct drm_i915_gem_request *request; |
1888 | struct drm_i915_gem_request *request; |
1885 | u32 request_ring_position; |
1889 | u32 request_ring_position; |
1886 | int was_empty; |
1890 | int was_empty; |
1887 | int ret; |
1891 | int ret; |
1888 | 1892 | ||
1889 | /* |
1893 | /* |
1890 | * Emit any outstanding flushes - execbuf can fail to emit the flush |
1894 | * Emit any outstanding flushes - execbuf can fail to emit the flush |
1891 | * after having emitted the batchbuffer command. Hence we need to fix |
1895 | * after having emitted the batchbuffer command. Hence we need to fix |
1892 | * things up similar to emitting the lazy request. The difference here |
1896 | * things up similar to emitting the lazy request. The difference here |
1893 | * is that the flush _must_ happen before the next request, no matter |
1897 | * is that the flush _must_ happen before the next request, no matter |
1894 | * what. |
1898 | * what. |
1895 | */ |
1899 | */ |
1896 | ret = intel_ring_flush_all_caches(ring); |
1900 | ret = intel_ring_flush_all_caches(ring); |
1897 | if (ret) |
1901 | if (ret) |
1898 | return ret; |
1902 | return ret; |
1899 | 1903 | ||
1900 | request = kmalloc(sizeof(*request), GFP_KERNEL); |
1904 | request = kmalloc(sizeof(*request), GFP_KERNEL); |
1901 | if (request == NULL) |
1905 | if (request == NULL) |
1902 | return -ENOMEM; |
1906 | return -ENOMEM; |
1903 | 1907 | ||
1904 | 1908 | ||
1905 | /* Record the position of the start of the request so that |
1909 | /* Record the position of the start of the request so that |
1906 | * should we detect the updated seqno part-way through the |
1910 | * should we detect the updated seqno part-way through the |
1907 | * GPU processing the request, we never over-estimate the |
1911 | * GPU processing the request, we never over-estimate the |
1908 | * position of the head. |
1912 | * position of the head. |
1909 | */ |
1913 | */ |
1910 | request_ring_position = intel_ring_get_tail(ring); |
1914 | request_ring_position = intel_ring_get_tail(ring); |
1911 | 1915 | ||
1912 | ret = ring->add_request(ring); |
1916 | ret = ring->add_request(ring); |
1913 | if (ret) { |
1917 | if (ret) { |
1914 | kfree(request); |
1918 | kfree(request); |
1915 | return ret; |
1919 | return ret; |
1916 | } |
1920 | } |
1917 | 1921 | ||
1918 | request->seqno = intel_ring_get_seqno(ring); |
1922 | request->seqno = intel_ring_get_seqno(ring); |
1919 | request->ring = ring; |
1923 | request->ring = ring; |
1920 | request->tail = request_ring_position; |
1924 | request->tail = request_ring_position; |
1921 | request->emitted_jiffies = GetTimerTicks(); |
1925 | request->emitted_jiffies = GetTimerTicks(); |
1922 | was_empty = list_empty(&ring->request_list); |
1926 | was_empty = list_empty(&ring->request_list); |
1923 | list_add_tail(&request->list, &ring->request_list); |
1927 | list_add_tail(&request->list, &ring->request_list); |
1924 | request->file_priv = NULL; |
1928 | request->file_priv = NULL; |
1925 | 1929 | ||
1926 | if (file) { |
1930 | if (file) { |
1927 | struct drm_i915_file_private *file_priv = file->driver_priv; |
1931 | struct drm_i915_file_private *file_priv = file->driver_priv; |
1928 | 1932 | ||
1929 | spin_lock(&file_priv->mm.lock); |
1933 | spin_lock(&file_priv->mm.lock); |
1930 | request->file_priv = file_priv; |
1934 | request->file_priv = file_priv; |
1931 | list_add_tail(&request->client_list, |
1935 | list_add_tail(&request->client_list, |
1932 | &file_priv->mm.request_list); |
1936 | &file_priv->mm.request_list); |
1933 | spin_unlock(&file_priv->mm.lock); |
1937 | spin_unlock(&file_priv->mm.lock); |
1934 | } |
1938 | } |
1935 | 1939 | ||
1936 | trace_i915_gem_request_add(ring, request->seqno); |
1940 | trace_i915_gem_request_add(ring, request->seqno); |
1937 | ring->outstanding_lazy_request = 0; |
1941 | ring->outstanding_lazy_request = 0; |
1938 | 1942 | ||
1939 | if (!dev_priv->mm.suspended) { |
1943 | if (!dev_priv->mm.suspended) { |
1940 | if (i915_enable_hangcheck) { |
1944 | if (i915_enable_hangcheck) { |
1941 | // mod_timer(&dev_priv->hangcheck_timer, |
1945 | // mod_timer(&dev_priv->hangcheck_timer, |
1942 | // jiffies + |
1946 | // jiffies + |
1943 | // msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)); |
1947 | // msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)); |
1944 | } |
1948 | } |
1945 | if (was_empty) { |
1949 | if (was_empty) { |
1946 | queue_delayed_work(dev_priv->wq, |
1950 | queue_delayed_work(dev_priv->wq, |
1947 | &dev_priv->mm.retire_work, |
1951 | &dev_priv->mm.retire_work, |
1948 | round_jiffies_up_relative(HZ)); |
1952 | round_jiffies_up_relative(HZ)); |
1949 | intel_mark_busy(dev_priv->dev); |
1953 | intel_mark_busy(dev_priv->dev); |
1950 | } |
1954 | } |
1951 | } |
1955 | } |
1952 | 1956 | ||
1953 | if (out_seqno) |
1957 | if (out_seqno) |
1954 | *out_seqno = request->seqno; |
1958 | *out_seqno = request->seqno; |
1955 | return 0; |
1959 | return 0; |
1956 | } |
1960 | } |
1957 | 1961 | ||
1958 | static inline void |
1962 | static inline void |
1959 | i915_gem_request_remove_from_client(struct drm_i915_gem_request *request) |
1963 | i915_gem_request_remove_from_client(struct drm_i915_gem_request *request) |
1960 | { |
1964 | { |
1961 | struct drm_i915_file_private *file_priv = request->file_priv; |
1965 | struct drm_i915_file_private *file_priv = request->file_priv; |
1962 | 1966 | ||
1963 | if (!file_priv) |
1967 | if (!file_priv) |
1964 | return; |
1968 | return; |
1965 | 1969 | ||
1966 | spin_lock(&file_priv->mm.lock); |
1970 | spin_lock(&file_priv->mm.lock); |
1967 | if (request->file_priv) { |
1971 | if (request->file_priv) { |
1968 | list_del(&request->client_list); |
1972 | list_del(&request->client_list); |
1969 | request->file_priv = NULL; |
1973 | request->file_priv = NULL; |
1970 | } |
1974 | } |
1971 | spin_unlock(&file_priv->mm.lock); |
1975 | spin_unlock(&file_priv->mm.lock); |
1972 | } |
1976 | } |
1973 | 1977 | ||
1974 | static void i915_gem_reset_ring_lists(struct drm_i915_private *dev_priv, |
1978 | static void i915_gem_reset_ring_lists(struct drm_i915_private *dev_priv, |
1975 | struct intel_ring_buffer *ring) |
1979 | struct intel_ring_buffer *ring) |
1976 | { |
1980 | { |
1977 | while (!list_empty(&ring->request_list)) { |
1981 | while (!list_empty(&ring->request_list)) { |
1978 | struct drm_i915_gem_request *request; |
1982 | struct drm_i915_gem_request *request; |
1979 | 1983 | ||
1980 | request = list_first_entry(&ring->request_list, |
1984 | request = list_first_entry(&ring->request_list, |
1981 | struct drm_i915_gem_request, |
1985 | struct drm_i915_gem_request, |
1982 | list); |
1986 | list); |
1983 | 1987 | ||
1984 | list_del(&request->list); |
1988 | list_del(&request->list); |
1985 | i915_gem_request_remove_from_client(request); |
1989 | i915_gem_request_remove_from_client(request); |
1986 | kfree(request); |
1990 | kfree(request); |
1987 | } |
1991 | } |
1988 | 1992 | ||
1989 | while (!list_empty(&ring->active_list)) { |
1993 | while (!list_empty(&ring->active_list)) { |
1990 | struct drm_i915_gem_object *obj; |
1994 | struct drm_i915_gem_object *obj; |
1991 | 1995 | ||
1992 | obj = list_first_entry(&ring->active_list, |
1996 | obj = list_first_entry(&ring->active_list, |
1993 | struct drm_i915_gem_object, |
1997 | struct drm_i915_gem_object, |
1994 | ring_list); |
1998 | ring_list); |
1995 | 1999 | ||
1996 | i915_gem_object_move_to_inactive(obj); |
2000 | i915_gem_object_move_to_inactive(obj); |
1997 | } |
2001 | } |
1998 | } |
2002 | } |
1999 | 2003 | ||
2000 | static void i915_gem_reset_fences(struct drm_device *dev) |
2004 | void i915_gem_restore_fences(struct drm_device *dev) |
2001 | { |
2005 | { |
2002 | struct drm_i915_private *dev_priv = dev->dev_private; |
2006 | struct drm_i915_private *dev_priv = dev->dev_private; |
2003 | int i; |
2007 | int i; |
2004 | 2008 | ||
2005 | for (i = 0; i < dev_priv->num_fence_regs; i++) { |
2009 | for (i = 0; i < dev_priv->num_fence_regs; i++) { |
2006 | struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i]; |
2010 | struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i]; |
2007 | - | ||
2008 | i915_gem_write_fence(dev, i, NULL); |
2011 | i915_gem_write_fence(dev, i, reg->obj); |
2009 | - | ||
2010 | if (reg->obj) |
- | |
2011 | i915_gem_object_fence_lost(reg->obj); |
- | |
2012 | - | ||
2013 | reg->pin_count = 0; |
- | |
2014 | reg->obj = NULL; |
- | |
2015 | INIT_LIST_HEAD(®->lru_list); |
- | |
2016 | } |
2012 | } |
2017 | - | ||
2018 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
- | |
2019 | } |
2013 | } |
2020 | 2014 | ||
2021 | void i915_gem_reset(struct drm_device *dev) |
2015 | void i915_gem_reset(struct drm_device *dev) |
2022 | { |
2016 | { |
2023 | struct drm_i915_private *dev_priv = dev->dev_private; |
2017 | struct drm_i915_private *dev_priv = dev->dev_private; |
2024 | struct drm_i915_gem_object *obj; |
2018 | struct drm_i915_gem_object *obj; |
2025 | struct intel_ring_buffer *ring; |
2019 | struct intel_ring_buffer *ring; |
2026 | int i; |
2020 | int i; |
2027 | 2021 | ||
2028 | for_each_ring(ring, dev_priv, i) |
2022 | for_each_ring(ring, dev_priv, i) |
2029 | i915_gem_reset_ring_lists(dev_priv, ring); |
2023 | i915_gem_reset_ring_lists(dev_priv, ring); |
2030 | 2024 | ||
2031 | /* Move everything out of the GPU domains to ensure we do any |
2025 | /* Move everything out of the GPU domains to ensure we do any |
2032 | * necessary invalidation upon reuse. |
2026 | * necessary invalidation upon reuse. |
2033 | */ |
2027 | */ |
2034 | list_for_each_entry(obj, |
2028 | list_for_each_entry(obj, |
2035 | &dev_priv->mm.inactive_list, |
2029 | &dev_priv->mm.inactive_list, |
2036 | mm_list) |
2030 | mm_list) |
2037 | { |
2031 | { |
2038 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
2032 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
2039 | } |
2033 | } |
2040 | - | ||
2041 | /* The fence registers are invalidated so clear them out */ |
2034 | |
2042 | i915_gem_reset_fences(dev); |
2035 | i915_gem_restore_fences(dev); |
2043 | } |
2036 | } |
2044 | 2037 | ||
2045 | /** |
2038 | /** |
2046 | * This function clears the request list as sequence numbers are passed. |
2039 | * This function clears the request list as sequence numbers are passed. |
2047 | */ |
2040 | */ |
2048 | void |
2041 | void |
2049 | i915_gem_retire_requests_ring(struct intel_ring_buffer *ring) |
2042 | i915_gem_retire_requests_ring(struct intel_ring_buffer *ring) |
2050 | { |
2043 | { |
2051 | uint32_t seqno; |
2044 | uint32_t seqno; |
2052 | 2045 | ||
2053 | if (list_empty(&ring->request_list)) |
2046 | if (list_empty(&ring->request_list)) |
2054 | return; |
2047 | return; |
2055 | 2048 | ||
2056 | WARN_ON(i915_verify_lists(ring->dev)); |
2049 | WARN_ON(i915_verify_lists(ring->dev)); |
2057 | 2050 | ||
2058 | seqno = ring->get_seqno(ring, true); |
2051 | seqno = ring->get_seqno(ring, true); |
2059 | 2052 | ||
2060 | while (!list_empty(&ring->request_list)) { |
2053 | while (!list_empty(&ring->request_list)) { |
2061 | struct drm_i915_gem_request *request; |
2054 | struct drm_i915_gem_request *request; |
2062 | 2055 | ||
2063 | request = list_first_entry(&ring->request_list, |
2056 | request = list_first_entry(&ring->request_list, |
2064 | struct drm_i915_gem_request, |
2057 | struct drm_i915_gem_request, |
2065 | list); |
2058 | list); |
2066 | 2059 | ||
2067 | if (!i915_seqno_passed(seqno, request->seqno)) |
2060 | if (!i915_seqno_passed(seqno, request->seqno)) |
2068 | break; |
2061 | break; |
2069 | 2062 | ||
2070 | trace_i915_gem_request_retire(ring, request->seqno); |
2063 | trace_i915_gem_request_retire(ring, request->seqno); |
2071 | /* We know the GPU must have read the request to have |
2064 | /* We know the GPU must have read the request to have |
2072 | * sent us the seqno + interrupt, so use the position |
2065 | * sent us the seqno + interrupt, so use the position |
2073 | * of tail of the request to update the last known position |
2066 | * of tail of the request to update the last known position |
2074 | * of the GPU head. |
2067 | * of the GPU head. |
2075 | */ |
2068 | */ |
2076 | ring->last_retired_head = request->tail; |
2069 | ring->last_retired_head = request->tail; |
2077 | 2070 | ||
2078 | list_del(&request->list); |
2071 | list_del(&request->list); |
2079 | i915_gem_request_remove_from_client(request); |
2072 | i915_gem_request_remove_from_client(request); |
2080 | kfree(request); |
2073 | kfree(request); |
2081 | } |
2074 | } |
2082 | 2075 | ||
2083 | /* Move any buffers on the active list that are no longer referenced |
2076 | /* Move any buffers on the active list that are no longer referenced |
2084 | * by the ringbuffer to the flushing/inactive lists as appropriate. |
2077 | * by the ringbuffer to the flushing/inactive lists as appropriate. |
2085 | */ |
2078 | */ |
2086 | while (!list_empty(&ring->active_list)) { |
2079 | while (!list_empty(&ring->active_list)) { |
2087 | struct drm_i915_gem_object *obj; |
2080 | struct drm_i915_gem_object *obj; |
2088 | 2081 | ||
2089 | obj = list_first_entry(&ring->active_list, |
2082 | obj = list_first_entry(&ring->active_list, |
2090 | struct drm_i915_gem_object, |
2083 | struct drm_i915_gem_object, |
2091 | ring_list); |
2084 | ring_list); |
2092 | 2085 | ||
2093 | if (!i915_seqno_passed(seqno, obj->last_read_seqno)) |
2086 | if (!i915_seqno_passed(seqno, obj->last_read_seqno)) |
2094 | break; |
2087 | break; |
2095 | 2088 | ||
2096 | i915_gem_object_move_to_inactive(obj); |
2089 | i915_gem_object_move_to_inactive(obj); |
2097 | } |
2090 | } |
2098 | 2091 | ||
2099 | if (unlikely(ring->trace_irq_seqno && |
2092 | if (unlikely(ring->trace_irq_seqno && |
2100 | i915_seqno_passed(seqno, ring->trace_irq_seqno))) { |
2093 | i915_seqno_passed(seqno, ring->trace_irq_seqno))) { |
2101 | ring->irq_put(ring); |
2094 | ring->irq_put(ring); |
2102 | ring->trace_irq_seqno = 0; |
2095 | ring->trace_irq_seqno = 0; |
2103 | } |
2096 | } |
2104 | 2097 | ||
2105 | WARN_ON(i915_verify_lists(ring->dev)); |
2098 | WARN_ON(i915_verify_lists(ring->dev)); |
2106 | } |
2099 | } |
2107 | 2100 | ||
2108 | void |
2101 | void |
2109 | i915_gem_retire_requests(struct drm_device *dev) |
2102 | i915_gem_retire_requests(struct drm_device *dev) |
2110 | { |
2103 | { |
2111 | drm_i915_private_t *dev_priv = dev->dev_private; |
2104 | drm_i915_private_t *dev_priv = dev->dev_private; |
2112 | struct intel_ring_buffer *ring; |
2105 | struct intel_ring_buffer *ring; |
2113 | int i; |
2106 | int i; |
2114 | 2107 | ||
2115 | for_each_ring(ring, dev_priv, i) |
2108 | for_each_ring(ring, dev_priv, i) |
2116 | i915_gem_retire_requests_ring(ring); |
2109 | i915_gem_retire_requests_ring(ring); |
2117 | } |
2110 | } |
2118 | 2111 | ||
2119 | static void |
2112 | static void |
2120 | i915_gem_retire_work_handler(struct work_struct *work) |
2113 | i915_gem_retire_work_handler(struct work_struct *work) |
2121 | { |
2114 | { |
2122 | drm_i915_private_t *dev_priv; |
2115 | drm_i915_private_t *dev_priv; |
2123 | struct drm_device *dev; |
2116 | struct drm_device *dev; |
2124 | struct intel_ring_buffer *ring; |
2117 | struct intel_ring_buffer *ring; |
2125 | bool idle; |
2118 | bool idle; |
2126 | int i; |
2119 | int i; |
2127 | 2120 | ||
2128 | dev_priv = container_of(work, drm_i915_private_t, |
2121 | dev_priv = container_of(work, drm_i915_private_t, |
2129 | mm.retire_work.work); |
2122 | mm.retire_work.work); |
2130 | dev = dev_priv->dev; |
2123 | dev = dev_priv->dev; |
2131 | 2124 | ||
2132 | /* Come back later if the device is busy... */ |
2125 | /* Come back later if the device is busy... */ |
2133 | if (!mutex_trylock(&dev->struct_mutex)) { |
2126 | if (!mutex_trylock(&dev->struct_mutex)) { |
2134 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2127 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2135 | round_jiffies_up_relative(HZ)); |
2128 | round_jiffies_up_relative(HZ)); |
2136 | return; |
2129 | return; |
2137 | } |
2130 | } |
2138 | 2131 | ||
2139 | i915_gem_retire_requests(dev); |
2132 | i915_gem_retire_requests(dev); |
2140 | 2133 | ||
2141 | /* Send a periodic flush down the ring so we don't hold onto GEM |
2134 | /* Send a periodic flush down the ring so we don't hold onto GEM |
2142 | * objects indefinitely. |
2135 | * objects indefinitely. |
2143 | */ |
2136 | */ |
2144 | idle = true; |
2137 | idle = true; |
2145 | for_each_ring(ring, dev_priv, i) { |
2138 | for_each_ring(ring, dev_priv, i) { |
2146 | if (ring->gpu_caches_dirty) |
2139 | if (ring->gpu_caches_dirty) |
2147 | i915_add_request(ring, NULL, NULL); |
2140 | i915_add_request(ring, NULL, NULL); |
2148 | 2141 | ||
2149 | idle &= list_empty(&ring->request_list); |
2142 | idle &= list_empty(&ring->request_list); |
2150 | } |
2143 | } |
2151 | 2144 | ||
2152 | if (!dev_priv->mm.suspended && !idle) |
2145 | if (!dev_priv->mm.suspended && !idle) |
2153 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2146 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, |
2154 | round_jiffies_up_relative(HZ)); |
2147 | round_jiffies_up_relative(HZ)); |
2155 | if (idle) |
2148 | if (idle) |
2156 | intel_mark_idle(dev); |
2149 | intel_mark_idle(dev); |
2157 | 2150 | ||
2158 | mutex_unlock(&dev->struct_mutex); |
2151 | mutex_unlock(&dev->struct_mutex); |
2159 | } |
2152 | } |
2160 | 2153 | ||
2161 | /** |
2154 | /** |
2162 | * Ensures that an object will eventually get non-busy by flushing any required |
2155 | * Ensures that an object will eventually get non-busy by flushing any required |
2163 | * write domains, emitting any outstanding lazy request and retiring and |
2156 | * write domains, emitting any outstanding lazy request and retiring and |
2164 | * completed requests. |
2157 | * completed requests. |
2165 | */ |
2158 | */ |
2166 | static int |
2159 | static int |
2167 | i915_gem_object_flush_active(struct drm_i915_gem_object *obj) |
2160 | i915_gem_object_flush_active(struct drm_i915_gem_object *obj) |
2168 | { |
2161 | { |
2169 | int ret; |
2162 | int ret; |
2170 | 2163 | ||
2171 | if (obj->active) { |
2164 | if (obj->active) { |
2172 | ret = i915_gem_check_olr(obj->ring, obj->last_read_seqno); |
2165 | ret = i915_gem_check_olr(obj->ring, obj->last_read_seqno); |
2173 | if (ret) |
2166 | if (ret) |
2174 | return ret; |
2167 | return ret; |
2175 | 2168 | ||
2176 | i915_gem_retire_requests_ring(obj->ring); |
2169 | i915_gem_retire_requests_ring(obj->ring); |
2177 | } |
2170 | } |
2178 | 2171 | ||
2179 | return 0; |
2172 | return 0; |
2180 | } |
2173 | } |
2181 | 2174 | ||
2182 | /** |
2175 | /** |
2183 | * i915_gem_wait_ioctl - implements DRM_IOCTL_I915_GEM_WAIT |
2176 | * i915_gem_wait_ioctl - implements DRM_IOCTL_I915_GEM_WAIT |
2184 | * @DRM_IOCTL_ARGS: standard ioctl arguments |
2177 | * @DRM_IOCTL_ARGS: standard ioctl arguments |
2185 | * |
2178 | * |
2186 | * Returns 0 if successful, else an error is returned with the remaining time in |
2179 | * Returns 0 if successful, else an error is returned with the remaining time in |
2187 | * the timeout parameter. |
2180 | * the timeout parameter. |
2188 | * -ETIME: object is still busy after timeout |
2181 | * -ETIME: object is still busy after timeout |
2189 | * -ERESTARTSYS: signal interrupted the wait |
2182 | * -ERESTARTSYS: signal interrupted the wait |
2190 | * -ENONENT: object doesn't exist |
2183 | * -ENONENT: object doesn't exist |
2191 | * Also possible, but rare: |
2184 | * Also possible, but rare: |
2192 | * -EAGAIN: GPU wedged |
2185 | * -EAGAIN: GPU wedged |
2193 | * -ENOMEM: damn |
2186 | * -ENOMEM: damn |
2194 | * -ENODEV: Internal IRQ fail |
2187 | * -ENODEV: Internal IRQ fail |
2195 | * -E?: The add request failed |
2188 | * -E?: The add request failed |
2196 | * |
2189 | * |
2197 | * The wait ioctl with a timeout of 0 reimplements the busy ioctl. With any |
2190 | * The wait ioctl with a timeout of 0 reimplements the busy ioctl. With any |
2198 | * non-zero timeout parameter the wait ioctl will wait for the given number of |
2191 | * non-zero timeout parameter the wait ioctl will wait for the given number of |
2199 | * nanoseconds on an object becoming unbusy. Since the wait itself does so |
2192 | * nanoseconds on an object becoming unbusy. Since the wait itself does so |
2200 | * without holding struct_mutex the object may become re-busied before this |
2193 | * without holding struct_mutex the object may become re-busied before this |
2201 | * function completes. A similar but shorter * race condition exists in the busy |
2194 | * function completes. A similar but shorter * race condition exists in the busy |
2202 | * ioctl |
2195 | * ioctl |
2203 | */ |
2196 | */ |
2204 | 2197 | ||
2205 | 2198 | ||
2206 | 2199 | ||
2207 | 2200 | ||
2208 | 2201 | ||
2209 | 2202 | ||
2210 | 2203 | ||
2211 | 2204 | ||
2212 | 2205 | ||
2213 | 2206 | ||
2214 | 2207 | ||
2215 | 2208 | ||
2216 | /** |
2209 | /** |
2217 | * i915_gem_object_sync - sync an object to a ring. |
2210 | * i915_gem_object_sync - sync an object to a ring. |
2218 | * |
2211 | * |
2219 | * @obj: object which may be in use on another ring. |
2212 | * @obj: object which may be in use on another ring. |
2220 | * @to: ring we wish to use the object on. May be NULL. |
2213 | * @to: ring we wish to use the object on. May be NULL. |
2221 | * |
2214 | * |
2222 | * This code is meant to abstract object synchronization with the GPU. |
2215 | * This code is meant to abstract object synchronization with the GPU. |
2223 | * Calling with NULL implies synchronizing the object with the CPU |
2216 | * Calling with NULL implies synchronizing the object with the CPU |
2224 | * rather than a particular GPU ring. |
2217 | * rather than a particular GPU ring. |
2225 | * |
2218 | * |
2226 | * Returns 0 if successful, else propagates up the lower layer error. |
2219 | * Returns 0 if successful, else propagates up the lower layer error. |
2227 | */ |
2220 | */ |
2228 | int |
2221 | int |
2229 | i915_gem_object_sync(struct drm_i915_gem_object *obj, |
2222 | i915_gem_object_sync(struct drm_i915_gem_object *obj, |
2230 | struct intel_ring_buffer *to) |
2223 | struct intel_ring_buffer *to) |
2231 | { |
2224 | { |
2232 | struct intel_ring_buffer *from = obj->ring; |
2225 | struct intel_ring_buffer *from = obj->ring; |
2233 | u32 seqno; |
2226 | u32 seqno; |
2234 | int ret, idx; |
2227 | int ret, idx; |
2235 | 2228 | ||
2236 | if (from == NULL || to == from) |
2229 | if (from == NULL || to == from) |
2237 | return 0; |
2230 | return 0; |
2238 | 2231 | ||
2239 | if (to == NULL || !i915_semaphore_is_enabled(obj->base.dev)) |
2232 | if (to == NULL || !i915_semaphore_is_enabled(obj->base.dev)) |
2240 | return i915_gem_object_wait_rendering(obj, false); |
2233 | return i915_gem_object_wait_rendering(obj, false); |
2241 | 2234 | ||
2242 | idx = intel_ring_sync_index(from, to); |
2235 | idx = intel_ring_sync_index(from, to); |
2243 | 2236 | ||
2244 | seqno = obj->last_read_seqno; |
2237 | seqno = obj->last_read_seqno; |
2245 | if (seqno <= from->sync_seqno[idx]) |
2238 | if (seqno <= from->sync_seqno[idx]) |
2246 | return 0; |
2239 | return 0; |
2247 | 2240 | ||
2248 | ret = i915_gem_check_olr(obj->ring, seqno); |
2241 | ret = i915_gem_check_olr(obj->ring, seqno); |
2249 | if (ret) |
2242 | if (ret) |
2250 | return ret; |
2243 | return ret; |
2251 | 2244 | ||
2252 | ret = to->sync_to(to, from, seqno); |
2245 | ret = to->sync_to(to, from, seqno); |
2253 | if (!ret) |
2246 | if (!ret) |
2254 | /* We use last_read_seqno because sync_to() |
2247 | /* We use last_read_seqno because sync_to() |
2255 | * might have just caused seqno wrap under |
2248 | * might have just caused seqno wrap under |
2256 | * the radar. |
2249 | * the radar. |
2257 | */ |
2250 | */ |
2258 | from->sync_seqno[idx] = obj->last_read_seqno; |
2251 | from->sync_seqno[idx] = obj->last_read_seqno; |
2259 | 2252 | ||
2260 | return ret; |
2253 | return ret; |
2261 | } |
2254 | } |
2262 | 2255 | ||
2263 | static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj) |
2256 | static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj) |
2264 | { |
2257 | { |
2265 | u32 old_write_domain, old_read_domains; |
2258 | u32 old_write_domain, old_read_domains; |
2266 | 2259 | ||
2267 | /* Force a pagefault for domain tracking on next user access */ |
2260 | /* Force a pagefault for domain tracking on next user access */ |
2268 | // i915_gem_release_mmap(obj); |
2261 | // i915_gem_release_mmap(obj); |
2269 | 2262 | ||
2270 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
2263 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
2271 | return; |
2264 | return; |
2272 | 2265 | ||
2273 | /* Wait for any direct GTT access to complete */ |
2266 | /* Wait for any direct GTT access to complete */ |
2274 | mb(); |
2267 | mb(); |
2275 | 2268 | ||
2276 | old_read_domains = obj->base.read_domains; |
2269 | old_read_domains = obj->base.read_domains; |
2277 | old_write_domain = obj->base.write_domain; |
2270 | old_write_domain = obj->base.write_domain; |
2278 | 2271 | ||
2279 | obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT; |
2272 | obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT; |
2280 | obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT; |
2273 | obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT; |
2281 | 2274 | ||
2282 | trace_i915_gem_object_change_domain(obj, |
2275 | trace_i915_gem_object_change_domain(obj, |
2283 | old_read_domains, |
2276 | old_read_domains, |
2284 | old_write_domain); |
2277 | old_write_domain); |
2285 | } |
2278 | } |
2286 | 2279 | ||
2287 | /** |
2280 | /** |
2288 | * Unbinds an object from the GTT aperture. |
2281 | * Unbinds an object from the GTT aperture. |
2289 | */ |
2282 | */ |
2290 | int |
2283 | int |
2291 | i915_gem_object_unbind(struct drm_i915_gem_object *obj) |
2284 | i915_gem_object_unbind(struct drm_i915_gem_object *obj) |
2292 | { |
2285 | { |
2293 | drm_i915_private_t *dev_priv = obj->base.dev->dev_private; |
2286 | drm_i915_private_t *dev_priv = obj->base.dev->dev_private; |
2294 | int ret; |
2287 | int ret; |
2295 | 2288 | ||
2296 | if(obj == get_fb_obj()) |
2289 | if(obj == get_fb_obj()) |
2297 | return 0; |
2290 | return 0; |
2298 | 2291 | ||
2299 | if (obj->gtt_space == NULL) |
2292 | if (obj->gtt_space == NULL) |
2300 | return 0; |
2293 | return 0; |
2301 | 2294 | ||
2302 | if (obj->pin_count) |
2295 | if (obj->pin_count) |
2303 | return -EBUSY; |
2296 | return -EBUSY; |
2304 | 2297 | ||
2305 | BUG_ON(obj->pages == NULL); |
2298 | BUG_ON(obj->pages == NULL); |
2306 | 2299 | ||
2307 | ret = i915_gem_object_finish_gpu(obj); |
2300 | ret = i915_gem_object_finish_gpu(obj); |
2308 | if (ret) |
2301 | if (ret) |
2309 | return ret; |
2302 | return ret; |
2310 | /* Continue on if we fail due to EIO, the GPU is hung so we |
2303 | /* Continue on if we fail due to EIO, the GPU is hung so we |
2311 | * should be safe and we need to cleanup or else we might |
2304 | * should be safe and we need to cleanup or else we might |
2312 | * cause memory corruption through use-after-free. |
2305 | * cause memory corruption through use-after-free. |
2313 | */ |
2306 | */ |
2314 | 2307 | ||
2315 | i915_gem_object_finish_gtt(obj); |
2308 | i915_gem_object_finish_gtt(obj); |
2316 | 2309 | ||
2317 | /* release the fence reg _after_ flushing */ |
2310 | /* release the fence reg _after_ flushing */ |
2318 | ret = i915_gem_object_put_fence(obj); |
2311 | ret = i915_gem_object_put_fence(obj); |
2319 | if (ret) |
2312 | if (ret) |
2320 | return ret; |
2313 | return ret; |
2321 | 2314 | ||
2322 | trace_i915_gem_object_unbind(obj); |
2315 | trace_i915_gem_object_unbind(obj); |
2323 | 2316 | ||
2324 | if (obj->has_global_gtt_mapping) |
2317 | if (obj->has_global_gtt_mapping) |
2325 | i915_gem_gtt_unbind_object(obj); |
2318 | i915_gem_gtt_unbind_object(obj); |
2326 | if (obj->has_aliasing_ppgtt_mapping) { |
2319 | if (obj->has_aliasing_ppgtt_mapping) { |
2327 | i915_ppgtt_unbind_object(dev_priv->mm.aliasing_ppgtt, obj); |
2320 | i915_ppgtt_unbind_object(dev_priv->mm.aliasing_ppgtt, obj); |
2328 | obj->has_aliasing_ppgtt_mapping = 0; |
2321 | obj->has_aliasing_ppgtt_mapping = 0; |
2329 | } |
2322 | } |
2330 | i915_gem_gtt_finish_object(obj); |
2323 | i915_gem_gtt_finish_object(obj); |
2331 | 2324 | ||
2332 | list_del(&obj->mm_list); |
2325 | list_del(&obj->mm_list); |
2333 | list_move_tail(&obj->gtt_list, &dev_priv->mm.unbound_list); |
2326 | list_move_tail(&obj->gtt_list, &dev_priv->mm.unbound_list); |
2334 | /* Avoid an unnecessary call to unbind on rebind. */ |
2327 | /* Avoid an unnecessary call to unbind on rebind. */ |
2335 | obj->map_and_fenceable = true; |
2328 | obj->map_and_fenceable = true; |
2336 | 2329 | ||
2337 | drm_mm_put_block(obj->gtt_space); |
2330 | drm_mm_put_block(obj->gtt_space); |
2338 | obj->gtt_space = NULL; |
2331 | obj->gtt_space = NULL; |
2339 | obj->gtt_offset = 0; |
2332 | obj->gtt_offset = 0; |
2340 | 2333 | ||
2341 | return 0; |
2334 | return 0; |
2342 | } |
2335 | } |
2343 | 2336 | ||
2344 | int i915_gpu_idle(struct drm_device *dev) |
2337 | int i915_gpu_idle(struct drm_device *dev) |
2345 | { |
2338 | { |
2346 | drm_i915_private_t *dev_priv = dev->dev_private; |
2339 | drm_i915_private_t *dev_priv = dev->dev_private; |
2347 | struct intel_ring_buffer *ring; |
2340 | struct intel_ring_buffer *ring; |
2348 | int ret, i; |
2341 | int ret, i; |
2349 | 2342 | ||
2350 | /* Flush everything onto the inactive list. */ |
2343 | /* Flush everything onto the inactive list. */ |
2351 | for_each_ring(ring, dev_priv, i) { |
2344 | for_each_ring(ring, dev_priv, i) { |
2352 | ret = i915_switch_context(ring, NULL, DEFAULT_CONTEXT_ID); |
2345 | ret = i915_switch_context(ring, NULL, DEFAULT_CONTEXT_ID); |
2353 | if (ret) |
2346 | if (ret) |
2354 | return ret; |
2347 | return ret; |
2355 | 2348 | ||
2356 | ret = intel_ring_idle(ring); |
2349 | ret = intel_ring_idle(ring); |
2357 | if (ret) |
2350 | if (ret) |
2358 | return ret; |
2351 | return ret; |
2359 | } |
2352 | } |
2360 | 2353 | ||
2361 | return 0; |
2354 | return 0; |
2362 | } |
2355 | } |
2363 | 2356 | ||
2364 | static void i965_write_fence_reg(struct drm_device *dev, int reg, |
2357 | static void i965_write_fence_reg(struct drm_device *dev, int reg, |
2365 | struct drm_i915_gem_object *obj) |
2358 | struct drm_i915_gem_object *obj) |
2366 | { |
2359 | { |
2367 | drm_i915_private_t *dev_priv = dev->dev_private; |
2360 | drm_i915_private_t *dev_priv = dev->dev_private; |
2368 | int fence_reg; |
2361 | int fence_reg; |
2369 | int fence_pitch_shift; |
2362 | int fence_pitch_shift; |
2370 | uint64_t val; |
2363 | uint64_t val; |
2371 | 2364 | ||
2372 | if (INTEL_INFO(dev)->gen >= 6) { |
2365 | if (INTEL_INFO(dev)->gen >= 6) { |
2373 | fence_reg = FENCE_REG_SANDYBRIDGE_0; |
2366 | fence_reg = FENCE_REG_SANDYBRIDGE_0; |
2374 | fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT; |
2367 | fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT; |
2375 | } else { |
2368 | } else { |
2376 | fence_reg = FENCE_REG_965_0; |
2369 | fence_reg = FENCE_REG_965_0; |
2377 | fence_pitch_shift = I965_FENCE_PITCH_SHIFT; |
2370 | fence_pitch_shift = I965_FENCE_PITCH_SHIFT; |
2378 | } |
2371 | } |
2379 | 2372 | ||
2380 | if (obj) { |
2373 | if (obj) { |
2381 | u32 size = obj->gtt_space->size; |
2374 | u32 size = obj->gtt_space->size; |
2382 | 2375 | ||
2383 | val = (uint64_t)((obj->gtt_offset + size - 4096) & |
2376 | val = (uint64_t)((obj->gtt_offset + size - 4096) & |
2384 | 0xfffff000) << 32; |
2377 | 0xfffff000) << 32; |
2385 | val |= obj->gtt_offset & 0xfffff000; |
2378 | val |= obj->gtt_offset & 0xfffff000; |
2386 | val |= (uint64_t)((obj->stride / 128) - 1) << fence_pitch_shift; |
2379 | val |= (uint64_t)((obj->stride / 128) - 1) << fence_pitch_shift; |
2387 | if (obj->tiling_mode == I915_TILING_Y) |
2380 | if (obj->tiling_mode == I915_TILING_Y) |
2388 | val |= 1 << I965_FENCE_TILING_Y_SHIFT; |
2381 | val |= 1 << I965_FENCE_TILING_Y_SHIFT; |
2389 | val |= I965_FENCE_REG_VALID; |
2382 | val |= I965_FENCE_REG_VALID; |
2390 | } else |
2383 | } else |
2391 | val = 0; |
2384 | val = 0; |
2392 | 2385 | ||
2393 | fence_reg += reg * 8; |
2386 | fence_reg += reg * 8; |
2394 | I915_WRITE64(fence_reg, val); |
2387 | I915_WRITE64(fence_reg, val); |
2395 | POSTING_READ(fence_reg); |
2388 | POSTING_READ(fence_reg); |
2396 | } |
2389 | } |
2397 | 2390 | ||
2398 | static void i915_write_fence_reg(struct drm_device *dev, int reg, |
2391 | static void i915_write_fence_reg(struct drm_device *dev, int reg, |
2399 | struct drm_i915_gem_object *obj) |
2392 | struct drm_i915_gem_object *obj) |
2400 | { |
2393 | { |
2401 | drm_i915_private_t *dev_priv = dev->dev_private; |
2394 | drm_i915_private_t *dev_priv = dev->dev_private; |
2402 | u32 val; |
2395 | u32 val; |
2403 | 2396 | ||
2404 | if (obj) { |
2397 | if (obj) { |
2405 | u32 size = obj->gtt_space->size; |
2398 | u32 size = obj->gtt_space->size; |
2406 | int pitch_val; |
2399 | int pitch_val; |
2407 | int tile_width; |
2400 | int tile_width; |
2408 | 2401 | ||
2409 | WARN((obj->gtt_offset & ~I915_FENCE_START_MASK) || |
2402 | WARN((obj->gtt_offset & ~I915_FENCE_START_MASK) || |
2410 | (size & -size) != size || |
2403 | (size & -size) != size || |
2411 | (obj->gtt_offset & (size - 1)), |
2404 | (obj->gtt_offset & (size - 1)), |
2412 | "object 0x%08x [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n", |
2405 | "object 0x%08x [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n", |
2413 | obj->gtt_offset, obj->map_and_fenceable, size); |
2406 | obj->gtt_offset, obj->map_and_fenceable, size); |
2414 | 2407 | ||
2415 | if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)) |
2408 | if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)) |
2416 | tile_width = 128; |
2409 | tile_width = 128; |
2417 | else |
2410 | else |
2418 | tile_width = 512; |
2411 | tile_width = 512; |
2419 | 2412 | ||
2420 | /* Note: pitch better be a power of two tile widths */ |
2413 | /* Note: pitch better be a power of two tile widths */ |
2421 | pitch_val = obj->stride / tile_width; |
2414 | pitch_val = obj->stride / tile_width; |
2422 | pitch_val = ffs(pitch_val) - 1; |
2415 | pitch_val = ffs(pitch_val) - 1; |
2423 | 2416 | ||
2424 | val = obj->gtt_offset; |
2417 | val = obj->gtt_offset; |
2425 | if (obj->tiling_mode == I915_TILING_Y) |
2418 | if (obj->tiling_mode == I915_TILING_Y) |
2426 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2419 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2427 | val |= I915_FENCE_SIZE_BITS(size); |
2420 | val |= I915_FENCE_SIZE_BITS(size); |
2428 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2421 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2429 | val |= I830_FENCE_REG_VALID; |
2422 | val |= I830_FENCE_REG_VALID; |
2430 | } else |
2423 | } else |
2431 | val = 0; |
2424 | val = 0; |
2432 | 2425 | ||
2433 | if (reg < 8) |
2426 | if (reg < 8) |
2434 | reg = FENCE_REG_830_0 + reg * 4; |
2427 | reg = FENCE_REG_830_0 + reg * 4; |
2435 | else |
2428 | else |
2436 | reg = FENCE_REG_945_8 + (reg - 8) * 4; |
2429 | reg = FENCE_REG_945_8 + (reg - 8) * 4; |
2437 | 2430 | ||
2438 | I915_WRITE(reg, val); |
2431 | I915_WRITE(reg, val); |
2439 | POSTING_READ(reg); |
2432 | POSTING_READ(reg); |
2440 | } |
2433 | } |
2441 | 2434 | ||
2442 | static void i830_write_fence_reg(struct drm_device *dev, int reg, |
2435 | static void i830_write_fence_reg(struct drm_device *dev, int reg, |
2443 | struct drm_i915_gem_object *obj) |
2436 | struct drm_i915_gem_object *obj) |
2444 | { |
2437 | { |
2445 | drm_i915_private_t *dev_priv = dev->dev_private; |
2438 | drm_i915_private_t *dev_priv = dev->dev_private; |
2446 | uint32_t val; |
2439 | uint32_t val; |
2447 | 2440 | ||
2448 | if (obj) { |
2441 | if (obj) { |
2449 | u32 size = obj->gtt_space->size; |
2442 | u32 size = obj->gtt_space->size; |
2450 | uint32_t pitch_val; |
2443 | uint32_t pitch_val; |
2451 | 2444 | ||
2452 | WARN((obj->gtt_offset & ~I830_FENCE_START_MASK) || |
2445 | WARN((obj->gtt_offset & ~I830_FENCE_START_MASK) || |
2453 | (size & -size) != size || |
2446 | (size & -size) != size || |
2454 | (obj->gtt_offset & (size - 1)), |
2447 | (obj->gtt_offset & (size - 1)), |
2455 | "object 0x%08x not 512K or pot-size 0x%08x aligned\n", |
2448 | "object 0x%08x not 512K or pot-size 0x%08x aligned\n", |
2456 | obj->gtt_offset, size); |
2449 | obj->gtt_offset, size); |
2457 | 2450 | ||
2458 | pitch_val = obj->stride / 128; |
2451 | pitch_val = obj->stride / 128; |
2459 | pitch_val = ffs(pitch_val) - 1; |
2452 | pitch_val = ffs(pitch_val) - 1; |
2460 | 2453 | ||
2461 | val = obj->gtt_offset; |
2454 | val = obj->gtt_offset; |
2462 | if (obj->tiling_mode == I915_TILING_Y) |
2455 | if (obj->tiling_mode == I915_TILING_Y) |
2463 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2456 | val |= 1 << I830_FENCE_TILING_Y_SHIFT; |
2464 | val |= I830_FENCE_SIZE_BITS(size); |
2457 | val |= I830_FENCE_SIZE_BITS(size); |
2465 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2458 | val |= pitch_val << I830_FENCE_PITCH_SHIFT; |
2466 | val |= I830_FENCE_REG_VALID; |
2459 | val |= I830_FENCE_REG_VALID; |
2467 | } else |
2460 | } else |
2468 | val = 0; |
2461 | val = 0; |
2469 | 2462 | ||
2470 | I915_WRITE(FENCE_REG_830_0 + reg * 4, val); |
2463 | I915_WRITE(FENCE_REG_830_0 + reg * 4, val); |
2471 | POSTING_READ(FENCE_REG_830_0 + reg * 4); |
2464 | POSTING_READ(FENCE_REG_830_0 + reg * 4); |
2472 | } |
2465 | } |
2473 | 2466 | ||
2474 | inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj) |
2467 | inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj) |
2475 | { |
2468 | { |
2476 | return obj && obj->base.read_domains & I915_GEM_DOMAIN_GTT; |
2469 | return obj && obj->base.read_domains & I915_GEM_DOMAIN_GTT; |
2477 | } |
2470 | } |
2478 | 2471 | ||
2479 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
2472 | static void i915_gem_write_fence(struct drm_device *dev, int reg, |
2480 | struct drm_i915_gem_object *obj) |
2473 | struct drm_i915_gem_object *obj) |
2481 | { |
2474 | { |
2482 | struct drm_i915_private *dev_priv = dev->dev_private; |
2475 | struct drm_i915_private *dev_priv = dev->dev_private; |
2483 | 2476 | ||
2484 | /* Ensure that all CPU reads are completed before installing a fence |
2477 | /* Ensure that all CPU reads are completed before installing a fence |
2485 | * and all writes before removing the fence. |
2478 | * and all writes before removing the fence. |
2486 | */ |
2479 | */ |
2487 | if (i915_gem_object_needs_mb(dev_priv->fence_regs[reg].obj)) |
2480 | if (i915_gem_object_needs_mb(dev_priv->fence_regs[reg].obj)) |
2488 | mb(); |
2481 | mb(); |
2489 | 2482 | ||
2490 | switch (INTEL_INFO(dev)->gen) { |
2483 | switch (INTEL_INFO(dev)->gen) { |
2491 | case 7: |
2484 | case 7: |
2492 | case 6: |
2485 | case 6: |
2493 | case 5: |
2486 | case 5: |
2494 | case 4: i965_write_fence_reg(dev, reg, obj); break; |
2487 | case 4: i965_write_fence_reg(dev, reg, obj); break; |
2495 | case 3: i915_write_fence_reg(dev, reg, obj); break; |
2488 | case 3: i915_write_fence_reg(dev, reg, obj); break; |
2496 | case 2: i830_write_fence_reg(dev, reg, obj); break; |
2489 | case 2: i830_write_fence_reg(dev, reg, obj); break; |
2497 | default: BUG(); |
2490 | default: BUG(); |
2498 | } |
2491 | } |
2499 | 2492 | ||
2500 | /* And similarly be paranoid that no direct access to this region |
2493 | /* And similarly be paranoid that no direct access to this region |
2501 | * is reordered to before the fence is installed. |
2494 | * is reordered to before the fence is installed. |
2502 | */ |
2495 | */ |
2503 | if (i915_gem_object_needs_mb(obj)) |
2496 | if (i915_gem_object_needs_mb(obj)) |
2504 | mb(); |
2497 | mb(); |
2505 | } |
2498 | } |
2506 | 2499 | ||
2507 | static inline int fence_number(struct drm_i915_private *dev_priv, |
2500 | static inline int fence_number(struct drm_i915_private *dev_priv, |
2508 | struct drm_i915_fence_reg *fence) |
2501 | struct drm_i915_fence_reg *fence) |
2509 | { |
2502 | { |
2510 | return fence - dev_priv->fence_regs; |
2503 | return fence - dev_priv->fence_regs; |
2511 | } |
2504 | } |
- | 2505 | ||
- | 2506 | static void i915_gem_write_fence__ipi(void *data) |
|
- | 2507 | { |
|
- | 2508 | asm volatile("wbinvd"); |
|
- | 2509 | ||
- | 2510 | } |
|
2512 | 2511 | ||
2513 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
2512 | static void i915_gem_object_update_fence(struct drm_i915_gem_object *obj, |
2514 | struct drm_i915_fence_reg *fence, |
2513 | struct drm_i915_fence_reg *fence, |
2515 | bool enable) |
2514 | bool enable) |
2516 | { |
2515 | { |
- | 2516 | struct drm_device *dev = obj->base.dev; |
|
2517 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2517 | struct drm_i915_private *dev_priv = dev->dev_private; |
2518 | int reg = fence_number(dev_priv, fence); |
2518 | int fence_reg = fence_number(dev_priv, fence); |
- | 2519 | ||
- | 2520 | /* In order to fully serialize access to the fenced region and |
|
- | 2521 | * the update to the fence register we need to take extreme |
|
- | 2522 | * measures on SNB+. In theory, the write to the fence register |
|
- | 2523 | * flushes all memory transactions before, and coupled with the |
|
- | 2524 | * mb() placed around the register write we serialise all memory |
|
- | 2525 | * operations with respect to the changes in the tiler. Yet, on |
|
- | 2526 | * SNB+ we need to take a step further and emit an explicit wbinvd() |
|
- | 2527 | * on each processor in order to manually flush all memory |
|
- | 2528 | * transactions before updating the fence register. |
|
- | 2529 | */ |
|
- | 2530 | if (HAS_LLC(obj->base.dev)) |
|
2519 | 2531 | on_each_cpu(i915_gem_write_fence__ipi, NULL, 1); |
|
2520 | i915_gem_write_fence(obj->base.dev, reg, enable ? obj : NULL); |
2532 | i915_gem_write_fence(dev, fence_reg, enable ? obj : NULL); |
2521 | 2533 | ||
2522 | if (enable) { |
2534 | if (enable) { |
2523 | obj->fence_reg = reg; |
2535 | obj->fence_reg = fence_reg; |
2524 | fence->obj = obj; |
2536 | fence->obj = obj; |
2525 | list_move_tail(&fence->lru_list, &dev_priv->mm.fence_list); |
2537 | list_move_tail(&fence->lru_list, &dev_priv->mm.fence_list); |
2526 | } else { |
2538 | } else { |
2527 | obj->fence_reg = I915_FENCE_REG_NONE; |
2539 | obj->fence_reg = I915_FENCE_REG_NONE; |
2528 | fence->obj = NULL; |
2540 | fence->obj = NULL; |
2529 | list_del_init(&fence->lru_list); |
2541 | list_del_init(&fence->lru_list); |
2530 | } |
2542 | } |
2531 | } |
2543 | } |
2532 | 2544 | ||
2533 | static int |
2545 | static int |
2534 | i915_gem_object_wait_fence(struct drm_i915_gem_object *obj) |
2546 | i915_gem_object_wait_fence(struct drm_i915_gem_object *obj) |
2535 | { |
2547 | { |
2536 | if (obj->last_fenced_seqno) { |
2548 | if (obj->last_fenced_seqno) { |
2537 | int ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno); |
2549 | int ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno); |
2538 | if (ret) |
2550 | if (ret) |
2539 | return ret; |
2551 | return ret; |
2540 | 2552 | ||
2541 | obj->last_fenced_seqno = 0; |
2553 | obj->last_fenced_seqno = 0; |
2542 | } |
2554 | } |
2543 | 2555 | ||
2544 | obj->fenced_gpu_access = false; |
2556 | obj->fenced_gpu_access = false; |
2545 | return 0; |
2557 | return 0; |
2546 | } |
2558 | } |
2547 | 2559 | ||
2548 | int |
2560 | int |
2549 | i915_gem_object_put_fence(struct drm_i915_gem_object *obj) |
2561 | i915_gem_object_put_fence(struct drm_i915_gem_object *obj) |
2550 | { |
2562 | { |
2551 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
2563 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
- | 2564 | struct drm_i915_fence_reg *fence; |
|
2552 | int ret; |
2565 | int ret; |
2553 | 2566 | ||
2554 | ret = i915_gem_object_wait_fence(obj); |
2567 | ret = i915_gem_object_wait_fence(obj); |
2555 | if (ret) |
2568 | if (ret) |
2556 | return ret; |
2569 | return ret; |
2557 | 2570 | ||
2558 | if (obj->fence_reg == I915_FENCE_REG_NONE) |
2571 | if (obj->fence_reg == I915_FENCE_REG_NONE) |
2559 | return 0; |
2572 | return 0; |
2560 | - | ||
2561 | i915_gem_object_update_fence(obj, |
2573 | |
2562 | &dev_priv->fence_regs[obj->fence_reg], |
- | |
- | 2574 | fence = &dev_priv->fence_regs[obj->fence_reg]; |
|
2563 | false); |
2575 | |
- | 2576 | i915_gem_object_fence_lost(obj); |
|
2564 | i915_gem_object_fence_lost(obj); |
2577 | i915_gem_object_update_fence(obj, fence, false); |
2565 | 2578 | ||
2566 | return 0; |
2579 | return 0; |
2567 | } |
2580 | } |
2568 | 2581 | ||
2569 | static struct drm_i915_fence_reg * |
2582 | static struct drm_i915_fence_reg * |
2570 | i915_find_fence_reg(struct drm_device *dev) |
2583 | i915_find_fence_reg(struct drm_device *dev) |
2571 | { |
2584 | { |
2572 | struct drm_i915_private *dev_priv = dev->dev_private; |
2585 | struct drm_i915_private *dev_priv = dev->dev_private; |
2573 | struct drm_i915_fence_reg *reg, *avail; |
2586 | struct drm_i915_fence_reg *reg, *avail; |
2574 | int i; |
2587 | int i; |
2575 | 2588 | ||
2576 | /* First try to find a free reg */ |
2589 | /* First try to find a free reg */ |
2577 | avail = NULL; |
2590 | avail = NULL; |
2578 | for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) { |
2591 | for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) { |
2579 | reg = &dev_priv->fence_regs[i]; |
2592 | reg = &dev_priv->fence_regs[i]; |
2580 | if (!reg->obj) |
2593 | if (!reg->obj) |
2581 | return reg; |
2594 | return reg; |
2582 | 2595 | ||
2583 | if (!reg->pin_count) |
2596 | if (!reg->pin_count) |
2584 | avail = reg; |
2597 | avail = reg; |
2585 | } |
2598 | } |
2586 | 2599 | ||
2587 | if (avail == NULL) |
2600 | if (avail == NULL) |
2588 | return NULL; |
2601 | return NULL; |
2589 | 2602 | ||
2590 | /* None available, try to steal one or wait for a user to finish */ |
2603 | /* None available, try to steal one or wait for a user to finish */ |
2591 | list_for_each_entry(reg, &dev_priv->mm.fence_list, lru_list) { |
2604 | list_for_each_entry(reg, &dev_priv->mm.fence_list, lru_list) { |
2592 | if (reg->pin_count) |
2605 | if (reg->pin_count) |
2593 | continue; |
2606 | continue; |
2594 | 2607 | ||
2595 | return reg; |
2608 | return reg; |
2596 | } |
2609 | } |
2597 | 2610 | ||
2598 | return NULL; |
2611 | return NULL; |
2599 | } |
2612 | } |
2600 | 2613 | ||
2601 | /** |
2614 | /** |
2602 | * i915_gem_object_get_fence - set up fencing for an object |
2615 | * i915_gem_object_get_fence - set up fencing for an object |
2603 | * @obj: object to map through a fence reg |
2616 | * @obj: object to map through a fence reg |
2604 | * |
2617 | * |
2605 | * When mapping objects through the GTT, userspace wants to be able to write |
2618 | * When mapping objects through the GTT, userspace wants to be able to write |
2606 | * to them without having to worry about swizzling if the object is tiled. |
2619 | * to them without having to worry about swizzling if the object is tiled. |
2607 | * This function walks the fence regs looking for a free one for @obj, |
2620 | * This function walks the fence regs looking for a free one for @obj, |
2608 | * stealing one if it can't find any. |
2621 | * stealing one if it can't find any. |
2609 | * |
2622 | * |
2610 | * It then sets up the reg based on the object's properties: address, pitch |
2623 | * It then sets up the reg based on the object's properties: address, pitch |
2611 | * and tiling format. |
2624 | * and tiling format. |
2612 | * |
2625 | * |
2613 | * For an untiled surface, this removes any existing fence. |
2626 | * For an untiled surface, this removes any existing fence. |
2614 | */ |
2627 | */ |
2615 | int |
2628 | int |
2616 | i915_gem_object_get_fence(struct drm_i915_gem_object *obj) |
2629 | i915_gem_object_get_fence(struct drm_i915_gem_object *obj) |
2617 | { |
2630 | { |
2618 | struct drm_device *dev = obj->base.dev; |
2631 | struct drm_device *dev = obj->base.dev; |
2619 | struct drm_i915_private *dev_priv = dev->dev_private; |
2632 | struct drm_i915_private *dev_priv = dev->dev_private; |
2620 | bool enable = obj->tiling_mode != I915_TILING_NONE; |
2633 | bool enable = obj->tiling_mode != I915_TILING_NONE; |
2621 | struct drm_i915_fence_reg *reg; |
2634 | struct drm_i915_fence_reg *reg; |
2622 | int ret; |
2635 | int ret; |
2623 | 2636 | ||
2624 | /* Have we updated the tiling parameters upon the object and so |
2637 | /* Have we updated the tiling parameters upon the object and so |
2625 | * will need to serialise the write to the associated fence register? |
2638 | * will need to serialise the write to the associated fence register? |
2626 | */ |
2639 | */ |
2627 | if (obj->fence_dirty) { |
2640 | if (obj->fence_dirty) { |
2628 | ret = i915_gem_object_wait_fence(obj); |
2641 | ret = i915_gem_object_wait_fence(obj); |
2629 | if (ret) |
2642 | if (ret) |
2630 | return ret; |
2643 | return ret; |
2631 | } |
2644 | } |
2632 | 2645 | ||
2633 | /* Just update our place in the LRU if our fence is getting reused. */ |
2646 | /* Just update our place in the LRU if our fence is getting reused. */ |
2634 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
2647 | if (obj->fence_reg != I915_FENCE_REG_NONE) { |
2635 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
2648 | reg = &dev_priv->fence_regs[obj->fence_reg]; |
2636 | if (!obj->fence_dirty) { |
2649 | if (!obj->fence_dirty) { |
2637 | list_move_tail(®->lru_list, |
2650 | list_move_tail(®->lru_list, |
2638 | &dev_priv->mm.fence_list); |
2651 | &dev_priv->mm.fence_list); |
2639 | return 0; |
2652 | return 0; |
2640 | } |
2653 | } |
2641 | } else if (enable) { |
2654 | } else if (enable) { |
2642 | reg = i915_find_fence_reg(dev); |
2655 | reg = i915_find_fence_reg(dev); |
2643 | if (reg == NULL) |
2656 | if (reg == NULL) |
2644 | return -EDEADLK; |
2657 | return -EDEADLK; |
2645 | 2658 | ||
2646 | if (reg->obj) { |
2659 | if (reg->obj) { |
2647 | struct drm_i915_gem_object *old = reg->obj; |
2660 | struct drm_i915_gem_object *old = reg->obj; |
2648 | 2661 | ||
2649 | ret = i915_gem_object_wait_fence(old); |
2662 | ret = i915_gem_object_wait_fence(old); |
2650 | if (ret) |
2663 | if (ret) |
2651 | return ret; |
2664 | return ret; |
2652 | 2665 | ||
2653 | i915_gem_object_fence_lost(old); |
2666 | i915_gem_object_fence_lost(old); |
2654 | } |
2667 | } |
2655 | } else |
2668 | } else |
2656 | return 0; |
2669 | return 0; |
2657 | 2670 | ||
2658 | i915_gem_object_update_fence(obj, reg, enable); |
2671 | i915_gem_object_update_fence(obj, reg, enable); |
2659 | obj->fence_dirty = false; |
2672 | obj->fence_dirty = false; |
2660 | 2673 | ||
2661 | return 0; |
2674 | return 0; |
2662 | } |
2675 | } |
2663 | 2676 | ||
2664 | static bool i915_gem_valid_gtt_space(struct drm_device *dev, |
2677 | static bool i915_gem_valid_gtt_space(struct drm_device *dev, |
2665 | struct drm_mm_node *gtt_space, |
2678 | struct drm_mm_node *gtt_space, |
2666 | unsigned long cache_level) |
2679 | unsigned long cache_level) |
2667 | { |
2680 | { |
2668 | struct drm_mm_node *other; |
2681 | struct drm_mm_node *other; |
2669 | 2682 | ||
2670 | /* On non-LLC machines we have to be careful when putting differing |
2683 | /* On non-LLC machines we have to be careful when putting differing |
2671 | * types of snoopable memory together to avoid the prefetcher |
2684 | * types of snoopable memory together to avoid the prefetcher |
2672 | * crossing memory domains and dying. |
2685 | * crossing memory domains and dying. |
2673 | */ |
2686 | */ |
2674 | if (HAS_LLC(dev)) |
2687 | if (HAS_LLC(dev)) |
2675 | return true; |
2688 | return true; |
2676 | 2689 | ||
2677 | if (gtt_space == NULL) |
2690 | if (gtt_space == NULL) |
2678 | return true; |
2691 | return true; |
2679 | 2692 | ||
2680 | if (list_empty(>t_space->node_list)) |
2693 | if (list_empty(>t_space->node_list)) |
2681 | return true; |
2694 | return true; |
2682 | 2695 | ||
2683 | other = list_entry(gtt_space->node_list.prev, struct drm_mm_node, node_list); |
2696 | other = list_entry(gtt_space->node_list.prev, struct drm_mm_node, node_list); |
2684 | if (other->allocated && !other->hole_follows && other->color != cache_level) |
2697 | if (other->allocated && !other->hole_follows && other->color != cache_level) |
2685 | return false; |
2698 | return false; |
2686 | 2699 | ||
2687 | other = list_entry(gtt_space->node_list.next, struct drm_mm_node, node_list); |
2700 | other = list_entry(gtt_space->node_list.next, struct drm_mm_node, node_list); |
2688 | if (other->allocated && !gtt_space->hole_follows && other->color != cache_level) |
2701 | if (other->allocated && !gtt_space->hole_follows && other->color != cache_level) |
2689 | return false; |
2702 | return false; |
2690 | 2703 | ||
2691 | return true; |
2704 | return true; |
2692 | } |
2705 | } |
2693 | 2706 | ||
2694 | static void i915_gem_verify_gtt(struct drm_device *dev) |
2707 | static void i915_gem_verify_gtt(struct drm_device *dev) |
2695 | { |
2708 | { |
2696 | #if WATCH_GTT |
2709 | #if WATCH_GTT |
2697 | struct drm_i915_private *dev_priv = dev->dev_private; |
2710 | struct drm_i915_private *dev_priv = dev->dev_private; |
2698 | struct drm_i915_gem_object *obj; |
2711 | struct drm_i915_gem_object *obj; |
2699 | int err = 0; |
2712 | int err = 0; |
2700 | 2713 | ||
2701 | list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) { |
2714 | list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) { |
2702 | if (obj->gtt_space == NULL) { |
2715 | if (obj->gtt_space == NULL) { |
2703 | printk(KERN_ERR "object found on GTT list with no space reserved\n"); |
2716 | printk(KERN_ERR "object found on GTT list with no space reserved\n"); |
2704 | err++; |
2717 | err++; |
2705 | continue; |
2718 | continue; |
2706 | } |
2719 | } |
2707 | 2720 | ||
2708 | if (obj->cache_level != obj->gtt_space->color) { |
2721 | if (obj->cache_level != obj->gtt_space->color) { |
2709 | printk(KERN_ERR "object reserved space [%08lx, %08lx] with wrong color, cache_level=%x, color=%lx\n", |
2722 | printk(KERN_ERR "object reserved space [%08lx, %08lx] with wrong color, cache_level=%x, color=%lx\n", |
2710 | obj->gtt_space->start, |
2723 | obj->gtt_space->start, |
2711 | obj->gtt_space->start + obj->gtt_space->size, |
2724 | obj->gtt_space->start + obj->gtt_space->size, |
2712 | obj->cache_level, |
2725 | obj->cache_level, |
2713 | obj->gtt_space->color); |
2726 | obj->gtt_space->color); |
2714 | err++; |
2727 | err++; |
2715 | continue; |
2728 | continue; |
2716 | } |
2729 | } |
2717 | 2730 | ||
2718 | if (!i915_gem_valid_gtt_space(dev, |
2731 | if (!i915_gem_valid_gtt_space(dev, |
2719 | obj->gtt_space, |
2732 | obj->gtt_space, |
2720 | obj->cache_level)) { |
2733 | obj->cache_level)) { |
2721 | printk(KERN_ERR "invalid GTT space found at [%08lx, %08lx] - color=%x\n", |
2734 | printk(KERN_ERR "invalid GTT space found at [%08lx, %08lx] - color=%x\n", |
2722 | obj->gtt_space->start, |
2735 | obj->gtt_space->start, |
2723 | obj->gtt_space->start + obj->gtt_space->size, |
2736 | obj->gtt_space->start + obj->gtt_space->size, |
2724 | obj->cache_level); |
2737 | obj->cache_level); |
2725 | err++; |
2738 | err++; |
2726 | continue; |
2739 | continue; |
2727 | } |
2740 | } |
2728 | } |
2741 | } |
2729 | 2742 | ||
2730 | WARN_ON(err); |
2743 | WARN_ON(err); |
2731 | #endif |
2744 | #endif |
2732 | } |
2745 | } |
2733 | 2746 | ||
2734 | /** |
2747 | /** |
2735 | * Finds free space in the GTT aperture and binds the object there. |
2748 | * Finds free space in the GTT aperture and binds the object there. |
2736 | */ |
2749 | */ |
2737 | static int |
2750 | static int |
2738 | i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj, |
2751 | i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj, |
2739 | unsigned alignment, |
2752 | unsigned alignment, |
2740 | bool map_and_fenceable, |
2753 | bool map_and_fenceable, |
2741 | bool nonblocking) |
2754 | bool nonblocking) |
2742 | { |
2755 | { |
2743 | struct drm_device *dev = obj->base.dev; |
2756 | struct drm_device *dev = obj->base.dev; |
2744 | drm_i915_private_t *dev_priv = dev->dev_private; |
2757 | drm_i915_private_t *dev_priv = dev->dev_private; |
2745 | struct drm_mm_node *node; |
2758 | struct drm_mm_node *node; |
2746 | u32 size, fence_size, fence_alignment, unfenced_alignment; |
2759 | u32 size, fence_size, fence_alignment, unfenced_alignment; |
2747 | bool mappable, fenceable; |
2760 | bool mappable, fenceable; |
2748 | int ret; |
2761 | int ret; |
2749 | 2762 | ||
2750 | fence_size = i915_gem_get_gtt_size(dev, |
2763 | fence_size = i915_gem_get_gtt_size(dev, |
2751 | obj->base.size, |
2764 | obj->base.size, |
2752 | obj->tiling_mode); |
2765 | obj->tiling_mode); |
2753 | fence_alignment = i915_gem_get_gtt_alignment(dev, |
2766 | fence_alignment = i915_gem_get_gtt_alignment(dev, |
2754 | obj->base.size, |
2767 | obj->base.size, |
2755 | obj->tiling_mode, true); |
2768 | obj->tiling_mode, true); |
2756 | unfenced_alignment = |
2769 | unfenced_alignment = |
2757 | i915_gem_get_gtt_alignment(dev, |
2770 | i915_gem_get_gtt_alignment(dev, |
2758 | obj->base.size, |
2771 | obj->base.size, |
2759 | obj->tiling_mode, false); |
2772 | obj->tiling_mode, false); |
2760 | 2773 | ||
2761 | if (alignment == 0) |
2774 | if (alignment == 0) |
2762 | alignment = map_and_fenceable ? fence_alignment : |
2775 | alignment = map_and_fenceable ? fence_alignment : |
2763 | unfenced_alignment; |
2776 | unfenced_alignment; |
2764 | if (map_and_fenceable && alignment & (fence_alignment - 1)) { |
2777 | if (map_and_fenceable && alignment & (fence_alignment - 1)) { |
2765 | DRM_ERROR("Invalid object alignment requested %u\n", alignment); |
2778 | DRM_ERROR("Invalid object alignment requested %u\n", alignment); |
2766 | return -EINVAL; |
2779 | return -EINVAL; |
2767 | } |
2780 | } |
2768 | 2781 | ||
2769 | size = map_and_fenceable ? fence_size : obj->base.size; |
2782 | size = map_and_fenceable ? fence_size : obj->base.size; |
2770 | 2783 | ||
2771 | /* If the object is bigger than the entire aperture, reject it early |
2784 | /* If the object is bigger than the entire aperture, reject it early |
2772 | * before evicting everything in a vain attempt to find space. |
2785 | * before evicting everything in a vain attempt to find space. |
2773 | */ |
2786 | */ |
2774 | if (obj->base.size > |
2787 | if (obj->base.size > |
2775 | (map_and_fenceable ? dev_priv->gtt.mappable_end : dev_priv->gtt.total)) { |
2788 | (map_and_fenceable ? dev_priv->gtt.mappable_end : dev_priv->gtt.total)) { |
2776 | DRM_ERROR("Attempting to bind an object larger than the aperture\n"); |
2789 | DRM_ERROR("Attempting to bind an object larger than the aperture\n"); |
- | 2790 | FAIL(); |
|
2777 | return -E2BIG; |
2791 | return -E2BIG; |
2778 | } |
2792 | } |
2779 | 2793 | ||
2780 | ret = i915_gem_object_get_pages(obj); |
2794 | ret = i915_gem_object_get_pages(obj); |
2781 | if (ret) |
2795 | if (ret) |
2782 | return ret; |
2796 | return ret; |
2783 | 2797 | ||
2784 | i915_gem_object_pin_pages(obj); |
2798 | i915_gem_object_pin_pages(obj); |
2785 | 2799 | ||
2786 | node = kzalloc(sizeof(*node), GFP_KERNEL); |
2800 | node = kzalloc(sizeof(*node), GFP_KERNEL); |
2787 | if (node == NULL) { |
2801 | if (node == NULL) { |
2788 | i915_gem_object_unpin_pages(obj); |
2802 | i915_gem_object_unpin_pages(obj); |
2789 | return -ENOMEM; |
2803 | return -ENOMEM; |
2790 | } |
2804 | } |
2791 | 2805 | ||
2792 | search_free: |
2806 | search_free: |
2793 | if (map_and_fenceable) |
2807 | if (map_and_fenceable) |
2794 | ret = drm_mm_insert_node_in_range_generic(&dev_priv->mm.gtt_space, node, |
2808 | ret = drm_mm_insert_node_in_range_generic(&dev_priv->mm.gtt_space, node, |
2795 | size, alignment, obj->cache_level, |
2809 | size, alignment, obj->cache_level, |
2796 | 0, dev_priv->gtt.mappable_end); |
2810 | 0, dev_priv->gtt.mappable_end); |
2797 | else |
2811 | else |
2798 | ret = drm_mm_insert_node_generic(&dev_priv->mm.gtt_space, node, |
2812 | ret = drm_mm_insert_node_generic(&dev_priv->mm.gtt_space, node, |
2799 | size, alignment, obj->cache_level); |
2813 | size, alignment, obj->cache_level); |
2800 | if (ret) { |
2814 | if (ret) { |
2801 | 2815 | ||
2802 | i915_gem_object_unpin_pages(obj); |
2816 | i915_gem_object_unpin_pages(obj); |
2803 | kfree(node); |
2817 | kfree(node); |
2804 | return ret; |
2818 | return ret; |
2805 | } |
2819 | } |
2806 | if (WARN_ON(!i915_gem_valid_gtt_space(dev, node, obj->cache_level))) { |
2820 | if (WARN_ON(!i915_gem_valid_gtt_space(dev, node, obj->cache_level))) { |
2807 | i915_gem_object_unpin_pages(obj); |
2821 | i915_gem_object_unpin_pages(obj); |
2808 | drm_mm_put_block(node); |
2822 | drm_mm_put_block(node); |
2809 | return -EINVAL; |
2823 | return -EINVAL; |
2810 | } |
2824 | } |
2811 | 2825 | ||
2812 | ret = i915_gem_gtt_prepare_object(obj); |
2826 | ret = i915_gem_gtt_prepare_object(obj); |
2813 | if (ret) { |
2827 | if (ret) { |
2814 | i915_gem_object_unpin_pages(obj); |
2828 | i915_gem_object_unpin_pages(obj); |
2815 | drm_mm_put_block(node); |
2829 | drm_mm_put_block(node); |
2816 | return ret; |
2830 | return ret; |
2817 | } |
2831 | } |
2818 | 2832 | ||
2819 | list_move_tail(&obj->gtt_list, &dev_priv->mm.bound_list); |
2833 | list_move_tail(&obj->gtt_list, &dev_priv->mm.bound_list); |
2820 | list_add_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
2834 | list_add_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
2821 | 2835 | ||
2822 | obj->gtt_space = node; |
2836 | obj->gtt_space = node; |
2823 | obj->gtt_offset = node->start; |
2837 | obj->gtt_offset = node->start; |
2824 | 2838 | ||
2825 | fenceable = |
2839 | fenceable = |
2826 | node->size == fence_size && |
2840 | node->size == fence_size && |
2827 | (node->start & (fence_alignment - 1)) == 0; |
2841 | (node->start & (fence_alignment - 1)) == 0; |
2828 | 2842 | ||
2829 | mappable = |
2843 | mappable = |
2830 | obj->gtt_offset + obj->base.size <= dev_priv->gtt.mappable_end; |
2844 | obj->gtt_offset + obj->base.size <= dev_priv->gtt.mappable_end; |
2831 | 2845 | ||
2832 | obj->map_and_fenceable = mappable && fenceable; |
2846 | obj->map_and_fenceable = mappable && fenceable; |
2833 | 2847 | ||
2834 | i915_gem_object_unpin_pages(obj); |
2848 | i915_gem_object_unpin_pages(obj); |
2835 | trace_i915_gem_object_bind(obj, map_and_fenceable); |
2849 | trace_i915_gem_object_bind(obj, map_and_fenceable); |
2836 | i915_gem_verify_gtt(dev); |
2850 | i915_gem_verify_gtt(dev); |
2837 | return 0; |
2851 | return 0; |
2838 | } |
2852 | } |
2839 | 2853 | ||
2840 | void |
2854 | void |
2841 | i915_gem_clflush_object(struct drm_i915_gem_object *obj) |
2855 | i915_gem_clflush_object(struct drm_i915_gem_object *obj) |
2842 | { |
2856 | { |
2843 | /* If we don't have a page list set up, then we're not pinned |
2857 | /* If we don't have a page list set up, then we're not pinned |
2844 | * to GPU, and we can ignore the cache flush because it'll happen |
2858 | * to GPU, and we can ignore the cache flush because it'll happen |
2845 | * again at bind time. |
2859 | * again at bind time. |
2846 | */ |
2860 | */ |
2847 | if (obj->pages == NULL) |
2861 | if (obj->pages == NULL) |
2848 | return; |
2862 | return; |
2849 | 2863 | ||
2850 | /* |
2864 | /* |
2851 | * Stolen memory is always coherent with the GPU as it is explicitly |
2865 | * Stolen memory is always coherent with the GPU as it is explicitly |
2852 | * marked as wc by the system, or the system is cache-coherent. |
2866 | * marked as wc by the system, or the system is cache-coherent. |
2853 | */ |
2867 | */ |
2854 | if (obj->stolen) |
2868 | if (obj->stolen) |
2855 | return; |
2869 | return; |
2856 | 2870 | ||
2857 | /* If the GPU is snooping the contents of the CPU cache, |
2871 | /* If the GPU is snooping the contents of the CPU cache, |
2858 | * we do not need to manually clear the CPU cache lines. However, |
2872 | * we do not need to manually clear the CPU cache lines. However, |
2859 | * the caches are only snooped when the render cache is |
2873 | * the caches are only snooped when the render cache is |
2860 | * flushed/invalidated. As we always have to emit invalidations |
2874 | * flushed/invalidated. As we always have to emit invalidations |
2861 | * and flushes when moving into and out of the RENDER domain, correct |
2875 | * and flushes when moving into and out of the RENDER domain, correct |
2862 | * snooping behaviour occurs naturally as the result of our domain |
2876 | * snooping behaviour occurs naturally as the result of our domain |
2863 | * tracking. |
2877 | * tracking. |
2864 | */ |
2878 | */ |
2865 | if (obj->cache_level != I915_CACHE_NONE) |
2879 | if (obj->cache_level != I915_CACHE_NONE) |
2866 | return; |
2880 | return; |
2867 | #if 0 |
2881 | #if 0 |
2868 | if(obj->mapped != NULL) |
2882 | if(obj->mapped != NULL) |
2869 | { |
2883 | { |
2870 | uint8_t *page_virtual; |
2884 | uint8_t *page_virtual; |
2871 | unsigned int i; |
2885 | unsigned int i; |
2872 | 2886 | ||
2873 | page_virtual = obj->mapped; |
2887 | page_virtual = obj->mapped; |
2874 | asm volatile("mfence"); |
2888 | asm volatile("mfence"); |
2875 | for (i = 0; i < obj->base.size; i += x86_clflush_size) |
2889 | for (i = 0; i < obj->base.size; i += x86_clflush_size) |
2876 | clflush(page_virtual + i); |
2890 | clflush(page_virtual + i); |
2877 | asm volatile("mfence"); |
2891 | asm volatile("mfence"); |
2878 | } |
2892 | } |
2879 | else |
2893 | else |
2880 | { |
2894 | { |
2881 | uint8_t *page_virtual; |
2895 | uint8_t *page_virtual; |
2882 | unsigned int i; |
2896 | unsigned int i; |
2883 | page_virtual = AllocKernelSpace(obj->base.size); |
2897 | page_virtual = AllocKernelSpace(obj->base.size); |
2884 | if(page_virtual != NULL) |
2898 | if(page_virtual != NULL) |
2885 | { |
2899 | { |
2886 | dma_addr_t *src, *dst; |
2900 | dma_addr_t *src, *dst; |
2887 | u32 count; |
2901 | u32 count; |
2888 | 2902 | ||
2889 | #define page_tabs 0xFDC00000 /* really dirty hack */ |
2903 | #define page_tabs 0xFDC00000 /* really dirty hack */ |
2890 | 2904 | ||
2891 | src = obj->pages.page; |
2905 | src = obj->pages.page; |
2892 | dst = &((dma_addr_t*)page_tabs)[(u32_t)page_virtual >> 12]; |
2906 | dst = &((dma_addr_t*)page_tabs)[(u32_t)page_virtual >> 12]; |
2893 | count = obj->base.size/4096; |
2907 | count = obj->base.size/4096; |
2894 | 2908 | ||
2895 | while(count--) |
2909 | while(count--) |
2896 | { |
2910 | { |
2897 | *dst++ = (0xFFFFF000 & *src++) | 0x001 ; |
2911 | *dst++ = (0xFFFFF000 & *src++) | 0x001 ; |
2898 | }; |
2912 | }; |
2899 | 2913 | ||
2900 | asm volatile("mfence"); |
2914 | asm volatile("mfence"); |
2901 | for (i = 0; i < obj->base.size; i += x86_clflush_size) |
2915 | for (i = 0; i < obj->base.size; i += x86_clflush_size) |
2902 | clflush(page_virtual + i); |
2916 | clflush(page_virtual + i); |
2903 | asm volatile("mfence"); |
2917 | asm volatile("mfence"); |
2904 | FreeKernelSpace(page_virtual); |
2918 | FreeKernelSpace(page_virtual); |
2905 | } |
2919 | } |
2906 | else |
2920 | else |
2907 | { |
2921 | { |
2908 | asm volatile ( |
2922 | asm volatile ( |
2909 | "mfence \n" |
2923 | "mfence \n" |
2910 | "wbinvd \n" /* this is really ugly */ |
2924 | "wbinvd \n" /* this is really ugly */ |
2911 | "mfence"); |
2925 | "mfence"); |
2912 | } |
2926 | } |
2913 | } |
2927 | } |
2914 | #endif |
2928 | #endif |
2915 | 2929 | ||
2916 | } |
2930 | } |
2917 | 2931 | ||
2918 | /** Flushes the GTT write domain for the object if it's dirty. */ |
2932 | /** Flushes the GTT write domain for the object if it's dirty. */ |
2919 | static void |
2933 | static void |
2920 | i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj) |
2934 | i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj) |
2921 | { |
2935 | { |
2922 | uint32_t old_write_domain; |
2936 | uint32_t old_write_domain; |
2923 | 2937 | ||
2924 | if (obj->base.write_domain != I915_GEM_DOMAIN_GTT) |
2938 | if (obj->base.write_domain != I915_GEM_DOMAIN_GTT) |
2925 | return; |
2939 | return; |
2926 | 2940 | ||
2927 | /* No actual flushing is required for the GTT write domain. Writes |
2941 | /* No actual flushing is required for the GTT write domain. Writes |
2928 | * to it immediately go to main memory as far as we know, so there's |
2942 | * to it immediately go to main memory as far as we know, so there's |
2929 | * no chipset flush. It also doesn't land in render cache. |
2943 | * no chipset flush. It also doesn't land in render cache. |
2930 | * |
2944 | * |
2931 | * However, we do have to enforce the order so that all writes through |
2945 | * However, we do have to enforce the order so that all writes through |
2932 | * the GTT land before any writes to the device, such as updates to |
2946 | * the GTT land before any writes to the device, such as updates to |
2933 | * the GATT itself. |
2947 | * the GATT itself. |
2934 | */ |
2948 | */ |
2935 | wmb(); |
2949 | wmb(); |
2936 | 2950 | ||
2937 | old_write_domain = obj->base.write_domain; |
2951 | old_write_domain = obj->base.write_domain; |
2938 | obj->base.write_domain = 0; |
2952 | obj->base.write_domain = 0; |
2939 | 2953 | ||
2940 | trace_i915_gem_object_change_domain(obj, |
2954 | trace_i915_gem_object_change_domain(obj, |
2941 | obj->base.read_domains, |
2955 | obj->base.read_domains, |
2942 | old_write_domain); |
2956 | old_write_domain); |
2943 | } |
2957 | } |
2944 | 2958 | ||
2945 | /** Flushes the CPU write domain for the object if it's dirty. */ |
2959 | /** Flushes the CPU write domain for the object if it's dirty. */ |
2946 | static void |
2960 | static void |
2947 | i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj) |
2961 | i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj) |
2948 | { |
2962 | { |
2949 | uint32_t old_write_domain; |
2963 | uint32_t old_write_domain; |
2950 | 2964 | ||
2951 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) |
2965 | if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) |
2952 | return; |
2966 | return; |
2953 | 2967 | ||
2954 | i915_gem_clflush_object(obj); |
2968 | i915_gem_clflush_object(obj); |
2955 | i915_gem_chipset_flush(obj->base.dev); |
2969 | i915_gem_chipset_flush(obj->base.dev); |
2956 | old_write_domain = obj->base.write_domain; |
2970 | old_write_domain = obj->base.write_domain; |
2957 | obj->base.write_domain = 0; |
2971 | obj->base.write_domain = 0; |
2958 | 2972 | ||
2959 | trace_i915_gem_object_change_domain(obj, |
2973 | trace_i915_gem_object_change_domain(obj, |
2960 | obj->base.read_domains, |
2974 | obj->base.read_domains, |
2961 | old_write_domain); |
2975 | old_write_domain); |
2962 | } |
2976 | } |
2963 | 2977 | ||
2964 | /** |
2978 | /** |
2965 | * Moves a single object to the GTT read, and possibly write domain. |
2979 | * Moves a single object to the GTT read, and possibly write domain. |
2966 | * |
2980 | * |
2967 | * This function returns when the move is complete, including waiting on |
2981 | * This function returns when the move is complete, including waiting on |
2968 | * flushes to occur. |
2982 | * flushes to occur. |
2969 | */ |
2983 | */ |
2970 | int |
2984 | int |
2971 | i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) |
2985 | i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write) |
2972 | { |
2986 | { |
2973 | drm_i915_private_t *dev_priv = obj->base.dev->dev_private; |
2987 | drm_i915_private_t *dev_priv = obj->base.dev->dev_private; |
2974 | uint32_t old_write_domain, old_read_domains; |
2988 | uint32_t old_write_domain, old_read_domains; |
2975 | int ret; |
2989 | int ret; |
2976 | 2990 | ||
2977 | /* Not valid to be called on unbound objects. */ |
2991 | /* Not valid to be called on unbound objects. */ |
2978 | if (obj->gtt_space == NULL) |
2992 | if (obj->gtt_space == NULL) |
2979 | return -EINVAL; |
2993 | return -EINVAL; |
2980 | 2994 | ||
2981 | if (obj->base.write_domain == I915_GEM_DOMAIN_GTT) |
2995 | if (obj->base.write_domain == I915_GEM_DOMAIN_GTT) |
2982 | return 0; |
2996 | return 0; |
2983 | 2997 | ||
2984 | ret = i915_gem_object_wait_rendering(obj, !write); |
2998 | ret = i915_gem_object_wait_rendering(obj, !write); |
2985 | if (ret) |
2999 | if (ret) |
2986 | return ret; |
3000 | return ret; |
2987 | 3001 | ||
2988 | i915_gem_object_flush_cpu_write_domain(obj); |
3002 | i915_gem_object_flush_cpu_write_domain(obj); |
2989 | 3003 | ||
2990 | /* Serialise direct access to this object with the barriers for |
3004 | /* Serialise direct access to this object with the barriers for |
2991 | * coherent writes from the GPU, by effectively invalidating the |
3005 | * coherent writes from the GPU, by effectively invalidating the |
2992 | * GTT domain upon first access. |
3006 | * GTT domain upon first access. |
2993 | */ |
3007 | */ |
2994 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
3008 | if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0) |
2995 | mb(); |
3009 | mb(); |
2996 | 3010 | ||
2997 | old_write_domain = obj->base.write_domain; |
3011 | old_write_domain = obj->base.write_domain; |
2998 | old_read_domains = obj->base.read_domains; |
3012 | old_read_domains = obj->base.read_domains; |
2999 | 3013 | ||
3000 | /* It should now be out of any other write domains, and we can update |
3014 | /* It should now be out of any other write domains, and we can update |
3001 | * the domain values for our changes. |
3015 | * the domain values for our changes. |
3002 | */ |
3016 | */ |
3003 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0); |
3017 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0); |
3004 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3018 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3005 | if (write) { |
3019 | if (write) { |
3006 | obj->base.read_domains = I915_GEM_DOMAIN_GTT; |
3020 | obj->base.read_domains = I915_GEM_DOMAIN_GTT; |
3007 | obj->base.write_domain = I915_GEM_DOMAIN_GTT; |
3021 | obj->base.write_domain = I915_GEM_DOMAIN_GTT; |
3008 | obj->dirty = 1; |
3022 | obj->dirty = 1; |
3009 | } |
3023 | } |
3010 | 3024 | ||
3011 | trace_i915_gem_object_change_domain(obj, |
3025 | trace_i915_gem_object_change_domain(obj, |
3012 | old_read_domains, |
3026 | old_read_domains, |
3013 | old_write_domain); |
3027 | old_write_domain); |
3014 | 3028 | ||
3015 | /* And bump the LRU for this access */ |
3029 | /* And bump the LRU for this access */ |
3016 | if (i915_gem_object_is_inactive(obj)) |
3030 | if (i915_gem_object_is_inactive(obj)) |
3017 | list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
3031 | list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
3018 | 3032 | ||
3019 | return 0; |
3033 | return 0; |
3020 | } |
3034 | } |
3021 | 3035 | ||
3022 | int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, |
3036 | int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, |
3023 | enum i915_cache_level cache_level) |
3037 | enum i915_cache_level cache_level) |
3024 | { |
3038 | { |
3025 | struct drm_device *dev = obj->base.dev; |
3039 | struct drm_device *dev = obj->base.dev; |
3026 | drm_i915_private_t *dev_priv = dev->dev_private; |
3040 | drm_i915_private_t *dev_priv = dev->dev_private; |
3027 | int ret; |
3041 | int ret; |
3028 | 3042 | ||
3029 | if (obj->cache_level == cache_level) |
3043 | if (obj->cache_level == cache_level) |
3030 | return 0; |
3044 | return 0; |
3031 | 3045 | ||
3032 | if (obj->pin_count) { |
3046 | if (obj->pin_count) { |
3033 | DRM_DEBUG("can not change the cache level of pinned objects\n"); |
3047 | DRM_DEBUG("can not change the cache level of pinned objects\n"); |
3034 | return -EBUSY; |
3048 | return -EBUSY; |
3035 | } |
3049 | } |
3036 | 3050 | ||
3037 | if (!i915_gem_valid_gtt_space(dev, obj->gtt_space, cache_level)) { |
3051 | if (!i915_gem_valid_gtt_space(dev, obj->gtt_space, cache_level)) { |
3038 | ret = i915_gem_object_unbind(obj); |
3052 | ret = i915_gem_object_unbind(obj); |
3039 | if (ret) |
3053 | if (ret) |
3040 | return ret; |
3054 | return ret; |
3041 | } |
3055 | } |
3042 | 3056 | ||
3043 | if (obj->gtt_space) { |
3057 | if (obj->gtt_space) { |
3044 | ret = i915_gem_object_finish_gpu(obj); |
3058 | ret = i915_gem_object_finish_gpu(obj); |
3045 | if (ret) |
3059 | if (ret) |
3046 | return ret; |
3060 | return ret; |
3047 | 3061 | ||
3048 | i915_gem_object_finish_gtt(obj); |
3062 | i915_gem_object_finish_gtt(obj); |
3049 | 3063 | ||
3050 | /* Before SandyBridge, you could not use tiling or fence |
3064 | /* Before SandyBridge, you could not use tiling or fence |
3051 | * registers with snooped memory, so relinquish any fences |
3065 | * registers with snooped memory, so relinquish any fences |
3052 | * currently pointing to our region in the aperture. |
3066 | * currently pointing to our region in the aperture. |
3053 | */ |
3067 | */ |
3054 | if (INTEL_INFO(dev)->gen < 6) { |
3068 | if (INTEL_INFO(dev)->gen < 6) { |
3055 | ret = i915_gem_object_put_fence(obj); |
3069 | ret = i915_gem_object_put_fence(obj); |
3056 | if (ret) |
3070 | if (ret) |
3057 | return ret; |
3071 | return ret; |
3058 | } |
3072 | } |
3059 | 3073 | ||
3060 | if (obj->has_global_gtt_mapping) |
3074 | if (obj->has_global_gtt_mapping) |
3061 | i915_gem_gtt_bind_object(obj, cache_level); |
3075 | i915_gem_gtt_bind_object(obj, cache_level); |
3062 | if (obj->has_aliasing_ppgtt_mapping) |
3076 | if (obj->has_aliasing_ppgtt_mapping) |
3063 | i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt, |
3077 | i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt, |
3064 | obj, cache_level); |
3078 | obj, cache_level); |
3065 | 3079 | ||
3066 | obj->gtt_space->color = cache_level; |
3080 | obj->gtt_space->color = cache_level; |
3067 | } |
3081 | } |
3068 | 3082 | ||
3069 | if (cache_level == I915_CACHE_NONE) { |
3083 | if (cache_level == I915_CACHE_NONE) { |
3070 | u32 old_read_domains, old_write_domain; |
3084 | u32 old_read_domains, old_write_domain; |
3071 | 3085 | ||
3072 | /* If we're coming from LLC cached, then we haven't |
3086 | /* If we're coming from LLC cached, then we haven't |
3073 | * actually been tracking whether the data is in the |
3087 | * actually been tracking whether the data is in the |
3074 | * CPU cache or not, since we only allow one bit set |
3088 | * CPU cache or not, since we only allow one bit set |
3075 | * in obj->write_domain and have been skipping the clflushes. |
3089 | * in obj->write_domain and have been skipping the clflushes. |
3076 | * Just set it to the CPU cache for now. |
3090 | * Just set it to the CPU cache for now. |
3077 | */ |
3091 | */ |
3078 | WARN_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU); |
3092 | WARN_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU); |
3079 | WARN_ON(obj->base.read_domains & ~I915_GEM_DOMAIN_CPU); |
3093 | WARN_ON(obj->base.read_domains & ~I915_GEM_DOMAIN_CPU); |
3080 | 3094 | ||
3081 | old_read_domains = obj->base.read_domains; |
3095 | old_read_domains = obj->base.read_domains; |
3082 | old_write_domain = obj->base.write_domain; |
3096 | old_write_domain = obj->base.write_domain; |
3083 | 3097 | ||
3084 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3098 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3085 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3099 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3086 | 3100 | ||
3087 | trace_i915_gem_object_change_domain(obj, |
3101 | trace_i915_gem_object_change_domain(obj, |
3088 | old_read_domains, |
3102 | old_read_domains, |
3089 | old_write_domain); |
3103 | old_write_domain); |
3090 | } |
3104 | } |
3091 | 3105 | ||
3092 | obj->cache_level = cache_level; |
3106 | obj->cache_level = cache_level; |
3093 | i915_gem_verify_gtt(dev); |
3107 | i915_gem_verify_gtt(dev); |
3094 | return 0; |
3108 | return 0; |
3095 | } |
3109 | } |
3096 | 3110 | ||
3097 | int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, |
3111 | int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data, |
3098 | struct drm_file *file) |
3112 | struct drm_file *file) |
3099 | { |
3113 | { |
3100 | struct drm_i915_gem_caching *args = data; |
3114 | struct drm_i915_gem_caching *args = data; |
3101 | struct drm_i915_gem_object *obj; |
3115 | struct drm_i915_gem_object *obj; |
3102 | int ret; |
3116 | int ret; |
3103 | 3117 | ||
3104 | if(args->handle == -2) |
3118 | if(args->handle == -2) |
3105 | { |
3119 | { |
3106 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3120 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3107 | return 0; |
3121 | return 0; |
3108 | } |
3122 | } |
3109 | 3123 | ||
3110 | ret = i915_mutex_lock_interruptible(dev); |
3124 | ret = i915_mutex_lock_interruptible(dev); |
3111 | if (ret) |
3125 | if (ret) |
3112 | return ret; |
3126 | return ret; |
3113 | 3127 | ||
3114 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3128 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3115 | if (&obj->base == NULL) { |
3129 | if (&obj->base == NULL) { |
3116 | ret = -ENOENT; |
3130 | ret = -ENOENT; |
3117 | goto unlock; |
3131 | goto unlock; |
3118 | } |
3132 | } |
3119 | 3133 | ||
3120 | args->caching = obj->cache_level != I915_CACHE_NONE; |
3134 | args->caching = obj->cache_level != I915_CACHE_NONE; |
3121 | 3135 | ||
3122 | drm_gem_object_unreference(&obj->base); |
3136 | drm_gem_object_unreference(&obj->base); |
3123 | unlock: |
3137 | unlock: |
3124 | mutex_unlock(&dev->struct_mutex); |
3138 | mutex_unlock(&dev->struct_mutex); |
3125 | return ret; |
3139 | return ret; |
3126 | } |
3140 | } |
3127 | 3141 | ||
3128 | int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, |
3142 | int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, |
3129 | struct drm_file *file) |
3143 | struct drm_file *file) |
3130 | { |
3144 | { |
3131 | struct drm_i915_gem_caching *args = data; |
3145 | struct drm_i915_gem_caching *args = data; |
3132 | struct drm_i915_gem_object *obj; |
3146 | struct drm_i915_gem_object *obj; |
3133 | enum i915_cache_level level; |
3147 | enum i915_cache_level level; |
3134 | int ret; |
3148 | int ret; |
3135 | 3149 | ||
3136 | if(args->handle == -2) |
3150 | if(args->handle == -2) |
3137 | { |
3151 | { |
3138 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3152 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3139 | return 0; |
3153 | return 0; |
3140 | } |
3154 | } |
3141 | 3155 | ||
3142 | switch (args->caching) { |
3156 | switch (args->caching) { |
3143 | case I915_CACHING_NONE: |
3157 | case I915_CACHING_NONE: |
3144 | level = I915_CACHE_NONE; |
3158 | level = I915_CACHE_NONE; |
3145 | break; |
3159 | break; |
3146 | case I915_CACHING_CACHED: |
3160 | case I915_CACHING_CACHED: |
3147 | level = I915_CACHE_LLC; |
3161 | level = I915_CACHE_LLC; |
3148 | break; |
3162 | break; |
3149 | default: |
3163 | default: |
3150 | return -EINVAL; |
3164 | return -EINVAL; |
3151 | } |
3165 | } |
3152 | 3166 | ||
3153 | ret = i915_mutex_lock_interruptible(dev); |
3167 | ret = i915_mutex_lock_interruptible(dev); |
3154 | if (ret) |
3168 | if (ret) |
3155 | return ret; |
3169 | return ret; |
3156 | 3170 | ||
3157 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3171 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3158 | if (&obj->base == NULL) { |
3172 | if (&obj->base == NULL) { |
3159 | ret = -ENOENT; |
3173 | ret = -ENOENT; |
3160 | goto unlock; |
3174 | goto unlock; |
3161 | } |
3175 | } |
3162 | 3176 | ||
3163 | ret = i915_gem_object_set_cache_level(obj, level); |
3177 | ret = i915_gem_object_set_cache_level(obj, level); |
3164 | 3178 | ||
3165 | drm_gem_object_unreference(&obj->base); |
3179 | drm_gem_object_unreference(&obj->base); |
3166 | unlock: |
3180 | unlock: |
3167 | mutex_unlock(&dev->struct_mutex); |
3181 | mutex_unlock(&dev->struct_mutex); |
3168 | return ret; |
3182 | return ret; |
3169 | } |
3183 | } |
3170 | 3184 | ||
3171 | /* |
3185 | /* |
3172 | * Prepare buffer for display plane (scanout, cursors, etc). |
3186 | * Prepare buffer for display plane (scanout, cursors, etc). |
3173 | * Can be called from an uninterruptible phase (modesetting) and allows |
3187 | * Can be called from an uninterruptible phase (modesetting) and allows |
3174 | * any flushes to be pipelined (for pageflips). |
3188 | * any flushes to be pipelined (for pageflips). |
3175 | */ |
3189 | */ |
3176 | int |
3190 | int |
3177 | i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, |
3191 | i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, |
3178 | u32 alignment, |
3192 | u32 alignment, |
3179 | struct intel_ring_buffer *pipelined) |
3193 | struct intel_ring_buffer *pipelined) |
3180 | { |
3194 | { |
3181 | u32 old_read_domains, old_write_domain; |
3195 | u32 old_read_domains, old_write_domain; |
3182 | int ret; |
3196 | int ret; |
3183 | 3197 | ||
3184 | if (pipelined != obj->ring) { |
3198 | if (pipelined != obj->ring) { |
3185 | ret = i915_gem_object_sync(obj, pipelined); |
3199 | ret = i915_gem_object_sync(obj, pipelined); |
3186 | if (ret) |
3200 | if (ret) |
3187 | return ret; |
3201 | return ret; |
3188 | } |
3202 | } |
3189 | 3203 | ||
3190 | /* The display engine is not coherent with the LLC cache on gen6. As |
3204 | /* The display engine is not coherent with the LLC cache on gen6. As |
3191 | * a result, we make sure that the pinning that is about to occur is |
3205 | * a result, we make sure that the pinning that is about to occur is |
3192 | * done with uncached PTEs. This is lowest common denominator for all |
3206 | * done with uncached PTEs. This is lowest common denominator for all |
3193 | * chipsets. |
3207 | * chipsets. |
3194 | * |
3208 | * |
3195 | * However for gen6+, we could do better by using the GFDT bit instead |
3209 | * However for gen6+, we could do better by using the GFDT bit instead |
3196 | * of uncaching, which would allow us to flush all the LLC-cached data |
3210 | * of uncaching, which would allow us to flush all the LLC-cached data |
3197 | * with that bit in the PTE to main memory with just one PIPE_CONTROL. |
3211 | * with that bit in the PTE to main memory with just one PIPE_CONTROL. |
3198 | */ |
3212 | */ |
3199 | ret = i915_gem_object_set_cache_level(obj, I915_CACHE_NONE); |
3213 | ret = i915_gem_object_set_cache_level(obj, I915_CACHE_NONE); |
3200 | if (ret) |
3214 | if (ret) |
3201 | return ret; |
3215 | return ret; |
3202 | 3216 | ||
3203 | /* As the user may map the buffer once pinned in the display plane |
3217 | /* As the user may map the buffer once pinned in the display plane |
3204 | * (e.g. libkms for the bootup splash), we have to ensure that we |
3218 | * (e.g. libkms for the bootup splash), we have to ensure that we |
3205 | * always use map_and_fenceable for all scanout buffers. |
3219 | * always use map_and_fenceable for all scanout buffers. |
3206 | */ |
3220 | */ |
3207 | ret = i915_gem_object_pin(obj, alignment, true, false); |
3221 | ret = i915_gem_object_pin(obj, alignment, true, false); |
3208 | if (ret) |
3222 | if (ret) |
3209 | return ret; |
3223 | return ret; |
3210 | 3224 | ||
3211 | i915_gem_object_flush_cpu_write_domain(obj); |
3225 | i915_gem_object_flush_cpu_write_domain(obj); |
3212 | 3226 | ||
3213 | old_write_domain = obj->base.write_domain; |
3227 | old_write_domain = obj->base.write_domain; |
3214 | old_read_domains = obj->base.read_domains; |
3228 | old_read_domains = obj->base.read_domains; |
3215 | 3229 | ||
3216 | /* It should now be out of any other write domains, and we can update |
3230 | /* It should now be out of any other write domains, and we can update |
3217 | * the domain values for our changes. |
3231 | * the domain values for our changes. |
3218 | */ |
3232 | */ |
3219 | obj->base.write_domain = 0; |
3233 | obj->base.write_domain = 0; |
3220 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3234 | obj->base.read_domains |= I915_GEM_DOMAIN_GTT; |
3221 | 3235 | ||
3222 | trace_i915_gem_object_change_domain(obj, |
3236 | trace_i915_gem_object_change_domain(obj, |
3223 | old_read_domains, |
3237 | old_read_domains, |
3224 | old_write_domain); |
3238 | old_write_domain); |
3225 | 3239 | ||
3226 | return 0; |
3240 | return 0; |
3227 | } |
3241 | } |
3228 | 3242 | ||
3229 | int |
3243 | int |
3230 | i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj) |
3244 | i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj) |
3231 | { |
3245 | { |
3232 | int ret; |
3246 | int ret; |
3233 | 3247 | ||
3234 | if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0) |
3248 | if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0) |
3235 | return 0; |
3249 | return 0; |
3236 | 3250 | ||
3237 | ret = i915_gem_object_wait_rendering(obj, false); |
3251 | ret = i915_gem_object_wait_rendering(obj, false); |
3238 | if (ret) |
3252 | if (ret) |
3239 | return ret; |
3253 | return ret; |
3240 | 3254 | ||
3241 | /* Ensure that we invalidate the GPU's caches and TLBs. */ |
3255 | /* Ensure that we invalidate the GPU's caches and TLBs. */ |
3242 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
3256 | obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS; |
3243 | return 0; |
3257 | return 0; |
3244 | } |
3258 | } |
3245 | 3259 | ||
3246 | /** |
3260 | /** |
3247 | * Moves a single object to the CPU read, and possibly write domain. |
3261 | * Moves a single object to the CPU read, and possibly write domain. |
3248 | * |
3262 | * |
3249 | * This function returns when the move is complete, including waiting on |
3263 | * This function returns when the move is complete, including waiting on |
3250 | * flushes to occur. |
3264 | * flushes to occur. |
3251 | */ |
3265 | */ |
3252 | int |
3266 | int |
3253 | i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write) |
3267 | i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write) |
3254 | { |
3268 | { |
3255 | uint32_t old_write_domain, old_read_domains; |
3269 | uint32_t old_write_domain, old_read_domains; |
3256 | int ret; |
3270 | int ret; |
3257 | 3271 | ||
3258 | if (obj->base.write_domain == I915_GEM_DOMAIN_CPU) |
3272 | if (obj->base.write_domain == I915_GEM_DOMAIN_CPU) |
3259 | return 0; |
3273 | return 0; |
3260 | 3274 | ||
3261 | ret = i915_gem_object_wait_rendering(obj, !write); |
3275 | ret = i915_gem_object_wait_rendering(obj, !write); |
3262 | if (ret) |
3276 | if (ret) |
3263 | return ret; |
3277 | return ret; |
3264 | 3278 | ||
3265 | i915_gem_object_flush_gtt_write_domain(obj); |
3279 | i915_gem_object_flush_gtt_write_domain(obj); |
3266 | 3280 | ||
3267 | old_write_domain = obj->base.write_domain; |
3281 | old_write_domain = obj->base.write_domain; |
3268 | old_read_domains = obj->base.read_domains; |
3282 | old_read_domains = obj->base.read_domains; |
3269 | 3283 | ||
3270 | /* Flush the CPU cache if it's still invalid. */ |
3284 | /* Flush the CPU cache if it's still invalid. */ |
3271 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) { |
3285 | if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) { |
3272 | i915_gem_clflush_object(obj); |
3286 | i915_gem_clflush_object(obj); |
3273 | 3287 | ||
3274 | obj->base.read_domains |= I915_GEM_DOMAIN_CPU; |
3288 | obj->base.read_domains |= I915_GEM_DOMAIN_CPU; |
3275 | } |
3289 | } |
3276 | 3290 | ||
3277 | /* It should now be out of any other write domains, and we can update |
3291 | /* It should now be out of any other write domains, and we can update |
3278 | * the domain values for our changes. |
3292 | * the domain values for our changes. |
3279 | */ |
3293 | */ |
3280 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_CPU) != 0); |
3294 | BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_CPU) != 0); |
3281 | 3295 | ||
3282 | /* If we're writing through the CPU, then the GPU read domains will |
3296 | /* If we're writing through the CPU, then the GPU read domains will |
3283 | * need to be invalidated at next use. |
3297 | * need to be invalidated at next use. |
3284 | */ |
3298 | */ |
3285 | if (write) { |
3299 | if (write) { |
3286 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3300 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3287 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3301 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3288 | } |
3302 | } |
3289 | 3303 | ||
3290 | trace_i915_gem_object_change_domain(obj, |
3304 | trace_i915_gem_object_change_domain(obj, |
3291 | old_read_domains, |
3305 | old_read_domains, |
3292 | old_write_domain); |
3306 | old_write_domain); |
3293 | 3307 | ||
3294 | return 0; |
3308 | return 0; |
3295 | } |
3309 | } |
3296 | 3310 | ||
3297 | /* Throttle our rendering by waiting until the ring has completed our requests |
3311 | /* Throttle our rendering by waiting until the ring has completed our requests |
3298 | * emitted over 20 msec ago. |
3312 | * emitted over 20 msec ago. |
3299 | * |
3313 | * |
3300 | * Note that if we were to use the current jiffies each time around the loop, |
3314 | * Note that if we were to use the current jiffies each time around the loop, |
3301 | * we wouldn't escape the function with any frames outstanding if the time to |
3315 | * we wouldn't escape the function with any frames outstanding if the time to |
3302 | * render a frame was over 20ms. |
3316 | * render a frame was over 20ms. |
3303 | * |
3317 | * |
3304 | * This should get us reasonable parallelism between CPU and GPU but also |
3318 | * This should get us reasonable parallelism between CPU and GPU but also |
3305 | * relatively low latency when blocking on a particular request to finish. |
3319 | * relatively low latency when blocking on a particular request to finish. |
3306 | */ |
3320 | */ |
3307 | static int |
3321 | static int |
3308 | i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file) |
3322 | i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file) |
3309 | { |
3323 | { |
3310 | struct drm_i915_private *dev_priv = dev->dev_private; |
3324 | struct drm_i915_private *dev_priv = dev->dev_private; |
3311 | struct drm_i915_file_private *file_priv = file->driver_priv; |
3325 | struct drm_i915_file_private *file_priv = file->driver_priv; |
3312 | unsigned long recent_enough = GetTimerTicks() - msecs_to_jiffies(20); |
3326 | unsigned long recent_enough = GetTimerTicks() - msecs_to_jiffies(20); |
3313 | struct drm_i915_gem_request *request; |
3327 | struct drm_i915_gem_request *request; |
3314 | struct intel_ring_buffer *ring = NULL; |
3328 | struct intel_ring_buffer *ring = NULL; |
3315 | unsigned reset_counter; |
3329 | unsigned reset_counter; |
3316 | u32 seqno = 0; |
3330 | u32 seqno = 0; |
3317 | int ret; |
3331 | int ret; |
3318 | 3332 | ||
3319 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
3333 | ret = i915_gem_wait_for_error(&dev_priv->gpu_error); |
3320 | if (ret) |
3334 | if (ret) |
3321 | return ret; |
3335 | return ret; |
3322 | 3336 | ||
3323 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, false); |
3337 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, false); |
3324 | if (ret) |
3338 | if (ret) |
3325 | return ret; |
3339 | return ret; |
3326 | 3340 | ||
3327 | spin_lock(&file_priv->mm.lock); |
3341 | spin_lock(&file_priv->mm.lock); |
3328 | list_for_each_entry(request, &file_priv->mm.request_list, client_list) { |
3342 | list_for_each_entry(request, &file_priv->mm.request_list, client_list) { |
3329 | if (time_after_eq(request->emitted_jiffies, recent_enough)) |
3343 | if (time_after_eq(request->emitted_jiffies, recent_enough)) |
3330 | break; |
3344 | break; |
3331 | 3345 | ||
3332 | ring = request->ring; |
3346 | ring = request->ring; |
3333 | seqno = request->seqno; |
3347 | seqno = request->seqno; |
3334 | } |
3348 | } |
3335 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
3349 | reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); |
3336 | spin_unlock(&file_priv->mm.lock); |
3350 | spin_unlock(&file_priv->mm.lock); |
3337 | 3351 | ||
3338 | if (seqno == 0) |
3352 | if (seqno == 0) |
3339 | return 0; |
3353 | return 0; |
3340 | 3354 | ||
3341 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL); |
3355 | ret = __wait_seqno(ring, seqno, reset_counter, true, NULL); |
3342 | if (ret == 0) |
3356 | if (ret == 0) |
3343 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, 0); |
3357 | queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, 0); |
3344 | 3358 | ||
3345 | return ret; |
3359 | return ret; |
3346 | } |
3360 | } |
3347 | 3361 | ||
3348 | int |
3362 | int |
3349 | i915_gem_object_pin(struct drm_i915_gem_object *obj, |
3363 | i915_gem_object_pin(struct drm_i915_gem_object *obj, |
3350 | uint32_t alignment, |
3364 | uint32_t alignment, |
3351 | bool map_and_fenceable, |
3365 | bool map_and_fenceable, |
3352 | bool nonblocking) |
3366 | bool nonblocking) |
3353 | { |
3367 | { |
3354 | int ret; |
3368 | int ret; |
3355 | 3369 | ||
3356 | if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT)) |
3370 | if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT)) |
3357 | return -EBUSY; |
3371 | return -EBUSY; |
3358 | 3372 | ||
3359 | if (obj->gtt_space != NULL) { |
3373 | if (obj->gtt_space != NULL) { |
3360 | if ((alignment && obj->gtt_offset & (alignment - 1)) || |
3374 | if ((alignment && obj->gtt_offset & (alignment - 1)) || |
3361 | (map_and_fenceable && !obj->map_and_fenceable)) { |
3375 | (map_and_fenceable && !obj->map_and_fenceable)) { |
3362 | WARN(obj->pin_count, |
3376 | WARN(obj->pin_count, |
3363 | "bo is already pinned with incorrect alignment:" |
3377 | "bo is already pinned with incorrect alignment:" |
3364 | " offset=%x, req.alignment=%x, req.map_and_fenceable=%d," |
3378 | " offset=%x, req.alignment=%x, req.map_and_fenceable=%d," |
3365 | " obj->map_and_fenceable=%d\n", |
3379 | " obj->map_and_fenceable=%d\n", |
3366 | obj->gtt_offset, alignment, |
3380 | obj->gtt_offset, alignment, |
3367 | map_and_fenceable, |
3381 | map_and_fenceable, |
3368 | obj->map_and_fenceable); |
3382 | obj->map_and_fenceable); |
3369 | ret = i915_gem_object_unbind(obj); |
3383 | ret = i915_gem_object_unbind(obj); |
3370 | if (ret) |
3384 | if (ret) |
3371 | return ret; |
3385 | return ret; |
3372 | } |
3386 | } |
3373 | } |
3387 | } |
3374 | 3388 | ||
3375 | if (obj->gtt_space == NULL) { |
3389 | if (obj->gtt_space == NULL) { |
3376 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3390 | struct drm_i915_private *dev_priv = obj->base.dev->dev_private; |
3377 | 3391 | ||
3378 | ret = i915_gem_object_bind_to_gtt(obj, alignment, |
3392 | ret = i915_gem_object_bind_to_gtt(obj, alignment, |
3379 | map_and_fenceable, |
3393 | map_and_fenceable, |
3380 | nonblocking); |
3394 | nonblocking); |
3381 | if (ret) |
3395 | if (ret) |
3382 | return ret; |
3396 | return ret; |
3383 | 3397 | ||
3384 | if (!dev_priv->mm.aliasing_ppgtt) |
3398 | if (!dev_priv->mm.aliasing_ppgtt) |
3385 | i915_gem_gtt_bind_object(obj, obj->cache_level); |
3399 | i915_gem_gtt_bind_object(obj, obj->cache_level); |
3386 | } |
3400 | } |
3387 | 3401 | ||
3388 | if (!obj->has_global_gtt_mapping && map_and_fenceable) |
3402 | if (!obj->has_global_gtt_mapping && map_and_fenceable) |
3389 | i915_gem_gtt_bind_object(obj, obj->cache_level); |
3403 | i915_gem_gtt_bind_object(obj, obj->cache_level); |
3390 | 3404 | ||
3391 | obj->pin_count++; |
3405 | obj->pin_count++; |
3392 | obj->pin_mappable |= map_and_fenceable; |
3406 | obj->pin_mappable |= map_and_fenceable; |
3393 | 3407 | ||
3394 | return 0; |
3408 | return 0; |
3395 | } |
3409 | } |
3396 | 3410 | ||
3397 | void |
3411 | void |
3398 | i915_gem_object_unpin(struct drm_i915_gem_object *obj) |
3412 | i915_gem_object_unpin(struct drm_i915_gem_object *obj) |
3399 | { |
3413 | { |
3400 | BUG_ON(obj->pin_count == 0); |
3414 | BUG_ON(obj->pin_count == 0); |
3401 | BUG_ON(obj->gtt_space == NULL); |
3415 | BUG_ON(obj->gtt_space == NULL); |
3402 | 3416 | ||
3403 | if (--obj->pin_count == 0) |
3417 | if (--obj->pin_count == 0) |
3404 | obj->pin_mappable = false; |
3418 | obj->pin_mappable = false; |
3405 | } |
3419 | } |
3406 | 3420 | ||
3407 | int |
3421 | int |
3408 | i915_gem_pin_ioctl(struct drm_device *dev, void *data, |
3422 | i915_gem_pin_ioctl(struct drm_device *dev, void *data, |
3409 | struct drm_file *file) |
3423 | struct drm_file *file) |
3410 | { |
3424 | { |
3411 | struct drm_i915_gem_pin *args = data; |
3425 | struct drm_i915_gem_pin *args = data; |
3412 | struct drm_i915_gem_object *obj; |
3426 | struct drm_i915_gem_object *obj; |
3413 | int ret; |
3427 | int ret; |
3414 | 3428 | ||
3415 | if(args->handle == -2) |
3429 | if(args->handle == -2) |
3416 | { |
3430 | { |
3417 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3431 | printf("%s handle %d\n", __FUNCTION__, args->handle); |
3418 | return 0; |
3432 | return 0; |
3419 | } |
3433 | } |
3420 | 3434 | ||
3421 | ret = i915_mutex_lock_interruptible(dev); |
3435 | ret = i915_mutex_lock_interruptible(dev); |
3422 | if (ret) |
3436 | if (ret) |
3423 | return ret; |
3437 | return ret; |
3424 | 3438 | ||
3425 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3439 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3426 | if (&obj->base == NULL) { |
3440 | if (&obj->base == NULL) { |
3427 | ret = -ENOENT; |
3441 | ret = -ENOENT; |
3428 | goto unlock; |
3442 | goto unlock; |
3429 | } |
3443 | } |
3430 | 3444 | ||
3431 | if (obj->madv != I915_MADV_WILLNEED) { |
3445 | if (obj->madv != I915_MADV_WILLNEED) { |
3432 | DRM_ERROR("Attempting to pin a purgeable buffer\n"); |
3446 | DRM_ERROR("Attempting to pin a purgeable buffer\n"); |
3433 | ret = -EINVAL; |
3447 | ret = -EINVAL; |
3434 | goto out; |
3448 | goto out; |
3435 | } |
3449 | } |
3436 | 3450 | ||
3437 | if (obj->pin_filp != NULL && obj->pin_filp != file) { |
3451 | if (obj->pin_filp != NULL && obj->pin_filp != file) { |
3438 | DRM_ERROR("Already pinned in i915_gem_pin_ioctl(): %d\n", |
3452 | DRM_ERROR("Already pinned in i915_gem_pin_ioctl(): %d\n", |
3439 | args->handle); |
3453 | args->handle); |
3440 | ret = -EINVAL; |
3454 | ret = -EINVAL; |
3441 | goto out; |
3455 | goto out; |
3442 | } |
3456 | } |
3443 | 3457 | ||
3444 | if (obj->user_pin_count == 0) { |
3458 | if (obj->user_pin_count == 0) { |
3445 | ret = i915_gem_object_pin(obj, args->alignment, true, false); |
3459 | ret = i915_gem_object_pin(obj, args->alignment, true, false); |
3446 | if (ret) |
3460 | if (ret) |
3447 | goto out; |
3461 | goto out; |
3448 | } |
3462 | } |
3449 | 3463 | ||
3450 | obj->user_pin_count++; |
3464 | obj->user_pin_count++; |
3451 | obj->pin_filp = file; |
3465 | obj->pin_filp = file; |
3452 | 3466 | ||
3453 | /* XXX - flush the CPU caches for pinned objects |
3467 | /* XXX - flush the CPU caches for pinned objects |
3454 | * as the X server doesn't manage domains yet |
3468 | * as the X server doesn't manage domains yet |
3455 | */ |
3469 | */ |
3456 | i915_gem_object_flush_cpu_write_domain(obj); |
3470 | i915_gem_object_flush_cpu_write_domain(obj); |
3457 | args->offset = obj->gtt_offset; |
3471 | args->offset = obj->gtt_offset; |
3458 | out: |
3472 | out: |
3459 | drm_gem_object_unreference(&obj->base); |
3473 | drm_gem_object_unreference(&obj->base); |
3460 | unlock: |
3474 | unlock: |
3461 | mutex_unlock(&dev->struct_mutex); |
3475 | mutex_unlock(&dev->struct_mutex); |
3462 | return ret; |
3476 | return ret; |
3463 | } |
3477 | } |
3464 | 3478 | ||
3465 | #if 0 |
3479 | #if 0 |
3466 | 3480 | ||
3467 | int |
3481 | int |
3468 | i915_gem_unpin_ioctl(struct drm_device *dev, void *data, |
3482 | i915_gem_unpin_ioctl(struct drm_device *dev, void *data, |
3469 | struct drm_file *file) |
3483 | struct drm_file *file) |
3470 | { |
3484 | { |
3471 | struct drm_i915_gem_pin *args = data; |
3485 | struct drm_i915_gem_pin *args = data; |
3472 | struct drm_i915_gem_object *obj; |
3486 | struct drm_i915_gem_object *obj; |
3473 | int ret; |
3487 | int ret; |
3474 | 3488 | ||
3475 | ret = i915_mutex_lock_interruptible(dev); |
3489 | ret = i915_mutex_lock_interruptible(dev); |
3476 | if (ret) |
3490 | if (ret) |
3477 | return ret; |
3491 | return ret; |
3478 | 3492 | ||
3479 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3493 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3480 | if (&obj->base == NULL) { |
3494 | if (&obj->base == NULL) { |
3481 | ret = -ENOENT; |
3495 | ret = -ENOENT; |
3482 | goto unlock; |
3496 | goto unlock; |
3483 | } |
3497 | } |
3484 | 3498 | ||
3485 | if (obj->pin_filp != file) { |
3499 | if (obj->pin_filp != file) { |
3486 | DRM_ERROR("Not pinned by caller in i915_gem_pin_ioctl(): %d\n", |
3500 | DRM_ERROR("Not pinned by caller in i915_gem_pin_ioctl(): %d\n", |
3487 | args->handle); |
3501 | args->handle); |
3488 | ret = -EINVAL; |
3502 | ret = -EINVAL; |
3489 | goto out; |
3503 | goto out; |
3490 | } |
3504 | } |
3491 | obj->user_pin_count--; |
3505 | obj->user_pin_count--; |
3492 | if (obj->user_pin_count == 0) { |
3506 | if (obj->user_pin_count == 0) { |
3493 | obj->pin_filp = NULL; |
3507 | obj->pin_filp = NULL; |
3494 | i915_gem_object_unpin(obj); |
3508 | i915_gem_object_unpin(obj); |
3495 | } |
3509 | } |
3496 | 3510 | ||
3497 | out: |
3511 | out: |
3498 | drm_gem_object_unreference(&obj->base); |
3512 | drm_gem_object_unreference(&obj->base); |
3499 | unlock: |
3513 | unlock: |
3500 | mutex_unlock(&dev->struct_mutex); |
3514 | mutex_unlock(&dev->struct_mutex); |
3501 | return ret; |
3515 | return ret; |
3502 | } |
3516 | } |
3503 | 3517 | ||
3504 | #endif |
3518 | #endif |
3505 | 3519 | ||
3506 | int |
3520 | int |
3507 | i915_gem_busy_ioctl(struct drm_device *dev, void *data, |
3521 | i915_gem_busy_ioctl(struct drm_device *dev, void *data, |
3508 | struct drm_file *file) |
3522 | struct drm_file *file) |
3509 | { |
3523 | { |
3510 | struct drm_i915_gem_busy *args = data; |
3524 | struct drm_i915_gem_busy *args = data; |
3511 | struct drm_i915_gem_object *obj; |
3525 | struct drm_i915_gem_object *obj; |
3512 | int ret; |
3526 | int ret; |
3513 | 3527 | ||
3514 | ret = i915_mutex_lock_interruptible(dev); |
3528 | ret = i915_mutex_lock_interruptible(dev); |
3515 | if (ret) |
3529 | if (ret) |
3516 | return ret; |
3530 | return ret; |
3517 | 3531 | ||
3518 | if(args->handle == -2) |
3532 | if(args->handle == -2) |
3519 | { |
3533 | { |
3520 | obj = get_fb_obj(); |
3534 | obj = get_fb_obj(); |
3521 | drm_gem_object_reference(&obj->base); |
3535 | drm_gem_object_reference(&obj->base); |
3522 | } |
3536 | } |
3523 | else |
3537 | else |
3524 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3538 | obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); |
3525 | if (&obj->base == NULL) { |
3539 | if (&obj->base == NULL) { |
3526 | ret = -ENOENT; |
3540 | ret = -ENOENT; |
3527 | goto unlock; |
3541 | goto unlock; |
3528 | } |
3542 | } |
3529 | 3543 | ||
3530 | /* Count all active objects as busy, even if they are currently not used |
3544 | /* Count all active objects as busy, even if they are currently not used |
3531 | * by the gpu. Users of this interface expect objects to eventually |
3545 | * by the gpu. Users of this interface expect objects to eventually |
3532 | * become non-busy without any further actions, therefore emit any |
3546 | * become non-busy without any further actions, therefore emit any |
3533 | * necessary flushes here. |
3547 | * necessary flushes here. |
3534 | */ |
3548 | */ |
3535 | ret = i915_gem_object_flush_active(obj); |
3549 | ret = i915_gem_object_flush_active(obj); |
3536 | 3550 | ||
3537 | args->busy = obj->active; |
3551 | args->busy = obj->active; |
3538 | if (obj->ring) { |
3552 | if (obj->ring) { |
3539 | BUILD_BUG_ON(I915_NUM_RINGS > 16); |
3553 | BUILD_BUG_ON(I915_NUM_RINGS > 16); |
3540 | args->busy |= intel_ring_flag(obj->ring) << 16; |
3554 | args->busy |= intel_ring_flag(obj->ring) << 16; |
3541 | } |
3555 | } |
3542 | 3556 | ||
3543 | drm_gem_object_unreference(&obj->base); |
3557 | drm_gem_object_unreference(&obj->base); |
3544 | unlock: |
3558 | unlock: |
3545 | mutex_unlock(&dev->struct_mutex); |
3559 | mutex_unlock(&dev->struct_mutex); |
3546 | return ret; |
3560 | return ret; |
3547 | } |
3561 | } |
3548 | 3562 | ||
3549 | int |
3563 | int |
3550 | i915_gem_throttle_ioctl(struct drm_device *dev, void *data, |
3564 | i915_gem_throttle_ioctl(struct drm_device *dev, void *data, |
3551 | struct drm_file *file_priv) |
3565 | struct drm_file *file_priv) |
3552 | { |
3566 | { |
3553 | return i915_gem_ring_throttle(dev, file_priv); |
3567 | return i915_gem_ring_throttle(dev, file_priv); |
3554 | } |
3568 | } |
3555 | 3569 | ||
3556 | #if 0 |
3570 | #if 0 |
3557 | 3571 | ||
3558 | int |
3572 | int |
3559 | i915_gem_madvise_ioctl(struct drm_device *dev, void *data, |
3573 | i915_gem_madvise_ioctl(struct drm_device *dev, void *data, |
3560 | struct drm_file *file_priv) |
3574 | struct drm_file *file_priv) |
3561 | { |
3575 | { |
3562 | struct drm_i915_gem_madvise *args = data; |
3576 | struct drm_i915_gem_madvise *args = data; |
3563 | struct drm_i915_gem_object *obj; |
3577 | struct drm_i915_gem_object *obj; |
3564 | int ret; |
3578 | int ret; |
3565 | 3579 | ||
3566 | switch (args->madv) { |
3580 | switch (args->madv) { |
3567 | case I915_MADV_DONTNEED: |
3581 | case I915_MADV_DONTNEED: |
3568 | case I915_MADV_WILLNEED: |
3582 | case I915_MADV_WILLNEED: |
3569 | break; |
3583 | break; |
3570 | default: |
3584 | default: |
3571 | return -EINVAL; |
3585 | return -EINVAL; |
3572 | } |
3586 | } |
3573 | 3587 | ||
3574 | ret = i915_mutex_lock_interruptible(dev); |
3588 | ret = i915_mutex_lock_interruptible(dev); |
3575 | if (ret) |
3589 | if (ret) |
3576 | return ret; |
3590 | return ret; |
3577 | 3591 | ||
3578 | obj = to_intel_bo(drm_gem_object_lookup(dev, file_priv, args->handle)); |
3592 | obj = to_intel_bo(drm_gem_object_lookup(dev, file_priv, args->handle)); |
3579 | if (&obj->base == NULL) { |
3593 | if (&obj->base == NULL) { |
3580 | ret = -ENOENT; |
3594 | ret = -ENOENT; |
3581 | goto unlock; |
3595 | goto unlock; |
3582 | } |
3596 | } |
3583 | 3597 | ||
3584 | if (obj->pin_count) { |
3598 | if (obj->pin_count) { |
3585 | ret = -EINVAL; |
3599 | ret = -EINVAL; |
3586 | goto out; |
3600 | goto out; |
3587 | } |
3601 | } |
3588 | 3602 | ||
3589 | if (obj->madv != __I915_MADV_PURGED) |
3603 | if (obj->madv != __I915_MADV_PURGED) |
3590 | obj->madv = args->madv; |
3604 | obj->madv = args->madv; |
3591 | 3605 | ||
3592 | /* if the object is no longer attached, discard its backing storage */ |
3606 | /* if the object is no longer attached, discard its backing storage */ |
3593 | if (i915_gem_object_is_purgeable(obj) && obj->pages == NULL) |
3607 | if (i915_gem_object_is_purgeable(obj) && obj->pages == NULL) |
3594 | i915_gem_object_truncate(obj); |
3608 | i915_gem_object_truncate(obj); |
3595 | 3609 | ||
3596 | args->retained = obj->madv != __I915_MADV_PURGED; |
3610 | args->retained = obj->madv != __I915_MADV_PURGED; |
3597 | 3611 | ||
3598 | out: |
3612 | out: |
3599 | drm_gem_object_unreference(&obj->base); |
3613 | drm_gem_object_unreference(&obj->base); |
3600 | unlock: |
3614 | unlock: |
3601 | mutex_unlock(&dev->struct_mutex); |
3615 | mutex_unlock(&dev->struct_mutex); |
3602 | return ret; |
3616 | return ret; |
3603 | } |
3617 | } |
3604 | #endif |
3618 | #endif |
3605 | 3619 | ||
3606 | void i915_gem_object_init(struct drm_i915_gem_object *obj, |
3620 | void i915_gem_object_init(struct drm_i915_gem_object *obj, |
3607 | const struct drm_i915_gem_object_ops *ops) |
3621 | const struct drm_i915_gem_object_ops *ops) |
3608 | { |
3622 | { |
3609 | INIT_LIST_HEAD(&obj->mm_list); |
3623 | INIT_LIST_HEAD(&obj->mm_list); |
3610 | INIT_LIST_HEAD(&obj->gtt_list); |
3624 | INIT_LIST_HEAD(&obj->gtt_list); |
3611 | INIT_LIST_HEAD(&obj->ring_list); |
3625 | INIT_LIST_HEAD(&obj->ring_list); |
3612 | INIT_LIST_HEAD(&obj->exec_list); |
3626 | INIT_LIST_HEAD(&obj->exec_list); |
3613 | 3627 | ||
3614 | obj->ops = ops; |
3628 | obj->ops = ops; |
3615 | 3629 | ||
3616 | obj->fence_reg = I915_FENCE_REG_NONE; |
3630 | obj->fence_reg = I915_FENCE_REG_NONE; |
3617 | obj->madv = I915_MADV_WILLNEED; |
3631 | obj->madv = I915_MADV_WILLNEED; |
3618 | /* Avoid an unnecessary call to unbind on the first bind. */ |
3632 | /* Avoid an unnecessary call to unbind on the first bind. */ |
3619 | obj->map_and_fenceable = true; |
3633 | obj->map_and_fenceable = true; |
3620 | 3634 | ||
3621 | i915_gem_info_add_obj(obj->base.dev->dev_private, obj->base.size); |
3635 | i915_gem_info_add_obj(obj->base.dev->dev_private, obj->base.size); |
3622 | } |
3636 | } |
3623 | 3637 | ||
3624 | static const struct drm_i915_gem_object_ops i915_gem_object_ops = { |
3638 | static const struct drm_i915_gem_object_ops i915_gem_object_ops = { |
3625 | .get_pages = i915_gem_object_get_pages_gtt, |
3639 | .get_pages = i915_gem_object_get_pages_gtt, |
3626 | .put_pages = i915_gem_object_put_pages_gtt, |
3640 | .put_pages = i915_gem_object_put_pages_gtt, |
3627 | }; |
3641 | }; |
3628 | 3642 | ||
3629 | struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, |
3643 | struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, |
3630 | size_t size) |
3644 | size_t size) |
3631 | { |
3645 | { |
3632 | struct drm_i915_gem_object *obj; |
3646 | struct drm_i915_gem_object *obj; |
3633 | struct address_space *mapping; |
3647 | struct address_space *mapping; |
3634 | gfp_t mask; |
3648 | gfp_t mask; |
- | 3649 | ||
- | 3650 | obj = i915_gem_object_alloc(dev); |
|
3635 | 3651 | ||
3636 | obj = kzalloc(sizeof(*obj), GFP_KERNEL); |
3652 | obj = kzalloc(sizeof(*obj), GFP_KERNEL); |
- | 3653 | if (obj == NULL) |
|
- | 3654 | { |
|
3637 | if (obj == NULL) |
3655 | FAIL(); |
- | 3656 | return NULL; |
|
3638 | return NULL; |
3657 | }; |
3639 | 3658 | ||
3640 | if (drm_gem_object_init(dev, &obj->base, size) != 0) { |
3659 | if (drm_gem_object_init(dev, &obj->base, size) != 0) { |
3641 | kfree(obj); |
3660 | kfree(obj); |
- | 3661 | FAIL(); |
|
3642 | return NULL; |
3662 | return NULL; |
3643 | } |
3663 | } |
3644 | 3664 | ||
3645 | 3665 | ||
3646 | i915_gem_object_init(obj, &i915_gem_object_ops); |
3666 | i915_gem_object_init(obj, &i915_gem_object_ops); |
3647 | 3667 | ||
3648 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3668 | obj->base.write_domain = I915_GEM_DOMAIN_CPU; |
3649 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3669 | obj->base.read_domains = I915_GEM_DOMAIN_CPU; |
3650 | 3670 | ||
3651 | if (HAS_LLC(dev)) { |
3671 | if (HAS_LLC(dev)) { |
3652 | /* On some devices, we can have the GPU use the LLC (the CPU |
3672 | /* On some devices, we can have the GPU use the LLC (the CPU |
3653 | * cache) for about a 10% performance improvement |
3673 | * cache) for about a 10% performance improvement |
3654 | * compared to uncached. Graphics requests other than |
3674 | * compared to uncached. Graphics requests other than |
3655 | * display scanout are coherent with the CPU in |
3675 | * display scanout are coherent with the CPU in |
3656 | * accessing this cache. This means in this mode we |
3676 | * accessing this cache. This means in this mode we |
3657 | * don't need to clflush on the CPU side, and on the |
3677 | * don't need to clflush on the CPU side, and on the |
3658 | * GPU side we only need to flush internal caches to |
3678 | * GPU side we only need to flush internal caches to |
3659 | * get data visible to the CPU. |
3679 | * get data visible to the CPU. |
3660 | * |
3680 | * |
3661 | * However, we maintain the display planes as UC, and so |
3681 | * However, we maintain the display planes as UC, and so |
3662 | * need to rebind when first used as such. |
3682 | * need to rebind when first used as such. |
3663 | */ |
3683 | */ |
3664 | obj->cache_level = I915_CACHE_LLC; |
3684 | obj->cache_level = I915_CACHE_LLC; |
3665 | } else |
3685 | } else |
3666 | obj->cache_level = I915_CACHE_NONE; |
3686 | obj->cache_level = I915_CACHE_NONE; |
3667 | 3687 | ||
3668 | return obj; |
3688 | return obj; |
3669 | } |
3689 | } |
3670 | 3690 | ||
3671 | int i915_gem_init_object(struct drm_gem_object *obj) |
3691 | int i915_gem_init_object(struct drm_gem_object *obj) |
3672 | { |
3692 | { |
3673 | BUG(); |
3693 | BUG(); |
3674 | 3694 | ||
3675 | return 0; |
3695 | return 0; |
3676 | } |
3696 | } |
3677 | 3697 | ||
3678 | void i915_gem_free_object(struct drm_gem_object *gem_obj) |
3698 | void i915_gem_free_object(struct drm_gem_object *gem_obj) |
3679 | { |
3699 | { |
3680 | struct drm_i915_gem_object *obj = to_intel_bo(gem_obj); |
3700 | struct drm_i915_gem_object *obj = to_intel_bo(gem_obj); |
3681 | struct drm_device *dev = obj->base.dev; |
3701 | struct drm_device *dev = obj->base.dev; |
3682 | drm_i915_private_t *dev_priv = dev->dev_private; |
3702 | drm_i915_private_t *dev_priv = dev->dev_private; |
3683 | 3703 | ||
3684 | trace_i915_gem_object_destroy(obj); |
3704 | trace_i915_gem_object_destroy(obj); |
3685 | 3705 | ||
3686 | // if (obj->phys_obj) |
3706 | // if (obj->phys_obj) |
3687 | // i915_gem_detach_phys_object(dev, obj); |
3707 | // i915_gem_detach_phys_object(dev, obj); |
3688 | // printf("%s obj %p\n", __FUNCTION__, obj); |
3708 | // printf("%s obj %p\n", __FUNCTION__, obj); |
3689 | 3709 | ||
3690 | obj->pin_count = 0; |
3710 | obj->pin_count = 0; |
3691 | if (WARN_ON(i915_gem_object_unbind(obj) == -ERESTARTSYS)) { |
3711 | if (WARN_ON(i915_gem_object_unbind(obj) == -ERESTARTSYS)) { |
3692 | bool was_interruptible; |
3712 | bool was_interruptible; |
3693 | 3713 | ||
3694 | was_interruptible = dev_priv->mm.interruptible; |
3714 | was_interruptible = dev_priv->mm.interruptible; |
3695 | dev_priv->mm.interruptible = false; |
3715 | dev_priv->mm.interruptible = false; |
3696 | 3716 | ||
3697 | WARN_ON(i915_gem_object_unbind(obj)); |
3717 | WARN_ON(i915_gem_object_unbind(obj)); |
3698 | 3718 | ||
3699 | dev_priv->mm.interruptible = was_interruptible; |
3719 | dev_priv->mm.interruptible = was_interruptible; |
3700 | } |
3720 | } |
3701 | 3721 | ||
3702 | obj->pages_pin_count = 0; |
3722 | obj->pages_pin_count = 0; |
3703 | i915_gem_object_put_pages(obj); |
3723 | i915_gem_object_put_pages(obj); |
3704 | // i915_gem_object_free_mmap_offset(obj); |
3724 | // i915_gem_object_free_mmap_offset(obj); |
3705 | 3725 | ||
3706 | BUG_ON(obj->pages); |
3726 | BUG_ON(obj->pages); |
3707 | 3727 | ||
3708 | // if (obj->base.import_attach) |
3728 | // if (obj->base.import_attach) |
3709 | // drm_prime_gem_destroy(&obj->base, NULL); |
3729 | // drm_prime_gem_destroy(&obj->base, NULL); |
3710 | 3730 | ||
3711 | if(obj->base.filp != NULL) |
3731 | if(obj->base.filp != NULL) |
3712 | { |
3732 | { |
3713 | // printf("filp %p\n", obj->base.filp); |
3733 | // printf("filp %p\n", obj->base.filp); |
3714 | shmem_file_delete(obj->base.filp); |
3734 | shmem_file_delete(obj->base.filp); |
3715 | } |
3735 | } |
3716 | 3736 | ||
3717 | drm_gem_object_release(&obj->base); |
3737 | drm_gem_object_release(&obj->base); |
3718 | i915_gem_info_remove_obj(dev_priv, obj->base.size); |
3738 | i915_gem_info_remove_obj(dev_priv, obj->base.size); |
3719 | 3739 | ||
3720 | kfree(obj->bit_17); |
3740 | kfree(obj->bit_17); |
3721 | kfree(obj); |
3741 | kfree(obj); |
3722 | } |
3742 | } |
3723 | 3743 | ||
3724 | #if 0 |
3744 | #if 0 |
3725 | int |
3745 | int |
3726 | i915_gem_idle(struct drm_device *dev) |
3746 | i915_gem_idle(struct drm_device *dev) |
3727 | { |
3747 | { |
3728 | drm_i915_private_t *dev_priv = dev->dev_private; |
3748 | drm_i915_private_t *dev_priv = dev->dev_private; |
3729 | int ret; |
3749 | int ret; |
3730 | 3750 | ||
3731 | mutex_lock(&dev->struct_mutex); |
3751 | mutex_lock(&dev->struct_mutex); |
3732 | 3752 | ||
3733 | if (dev_priv->mm.suspended) { |
3753 | if (dev_priv->mm.suspended) { |
3734 | mutex_unlock(&dev->struct_mutex); |
3754 | mutex_unlock(&dev->struct_mutex); |
3735 | return 0; |
3755 | return 0; |
3736 | } |
3756 | } |
3737 | 3757 | ||
3738 | ret = i915_gpu_idle(dev); |
3758 | ret = i915_gpu_idle(dev); |
3739 | if (ret) { |
3759 | if (ret) { |
3740 | mutex_unlock(&dev->struct_mutex); |
3760 | mutex_unlock(&dev->struct_mutex); |
3741 | return ret; |
3761 | return ret; |
3742 | } |
3762 | } |
3743 | i915_gem_retire_requests(dev); |
3763 | i915_gem_retire_requests(dev); |
3744 | 3764 | ||
3745 | /* Under UMS, be paranoid and evict. */ |
3765 | /* Under UMS, be paranoid and evict. */ |
3746 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3766 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3747 | i915_gem_evict_everything(dev); |
3767 | i915_gem_evict_everything(dev); |
3748 | - | ||
3749 | i915_gem_reset_fences(dev); |
- | |
3750 | 3768 | ||
3751 | /* Hack! Don't let anybody do execbuf while we don't control the chip. |
3769 | /* Hack! Don't let anybody do execbuf while we don't control the chip. |
3752 | * We need to replace this with a semaphore, or something. |
3770 | * We need to replace this with a semaphore, or something. |
3753 | * And not confound mm.suspended! |
3771 | * And not confound mm.suspended! |
3754 | */ |
3772 | */ |
3755 | dev_priv->mm.suspended = 1; |
3773 | dev_priv->mm.suspended = 1; |
3756 | del_timer_sync(&dev_priv->gpu_error.hangcheck_timer); |
3774 | del_timer_sync(&dev_priv->gpu_error.hangcheck_timer); |
3757 | 3775 | ||
3758 | i915_kernel_lost_context(dev); |
3776 | i915_kernel_lost_context(dev); |
3759 | i915_gem_cleanup_ringbuffer(dev); |
3777 | i915_gem_cleanup_ringbuffer(dev); |
3760 | 3778 | ||
3761 | mutex_unlock(&dev->struct_mutex); |
3779 | mutex_unlock(&dev->struct_mutex); |
3762 | 3780 | ||
3763 | /* Cancel the retire work handler, which should be idle now. */ |
3781 | /* Cancel the retire work handler, which should be idle now. */ |
3764 | cancel_delayed_work_sync(&dev_priv->mm.retire_work); |
3782 | cancel_delayed_work_sync(&dev_priv->mm.retire_work); |
3765 | 3783 | ||
3766 | return 0; |
3784 | return 0; |
3767 | } |
3785 | } |
3768 | #endif |
3786 | #endif |
3769 | 3787 | ||
3770 | void i915_gem_l3_remap(struct drm_device *dev) |
3788 | void i915_gem_l3_remap(struct drm_device *dev) |
3771 | { |
3789 | { |
3772 | drm_i915_private_t *dev_priv = dev->dev_private; |
3790 | drm_i915_private_t *dev_priv = dev->dev_private; |
3773 | u32 misccpctl; |
3791 | u32 misccpctl; |
3774 | int i; |
3792 | int i; |
3775 | 3793 | ||
3776 | if (!HAS_L3_GPU_CACHE(dev)) |
3794 | if (!HAS_L3_GPU_CACHE(dev)) |
3777 | return; |
3795 | return; |
3778 | 3796 | ||
3779 | if (!dev_priv->l3_parity.remap_info) |
3797 | if (!dev_priv->l3_parity.remap_info) |
3780 | return; |
3798 | return; |
3781 | 3799 | ||
3782 | misccpctl = I915_READ(GEN7_MISCCPCTL); |
3800 | misccpctl = I915_READ(GEN7_MISCCPCTL); |
3783 | I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); |
3801 | I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); |
3784 | POSTING_READ(GEN7_MISCCPCTL); |
3802 | POSTING_READ(GEN7_MISCCPCTL); |
3785 | 3803 | ||
3786 | for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) { |
3804 | for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) { |
3787 | u32 remap = I915_READ(GEN7_L3LOG_BASE + i); |
3805 | u32 remap = I915_READ(GEN7_L3LOG_BASE + i); |
3788 | if (remap && remap != dev_priv->l3_parity.remap_info[i/4]) |
3806 | if (remap && remap != dev_priv->l3_parity.remap_info[i/4]) |
3789 | DRM_DEBUG("0x%x was already programmed to %x\n", |
3807 | DRM_DEBUG("0x%x was already programmed to %x\n", |
3790 | GEN7_L3LOG_BASE + i, remap); |
3808 | GEN7_L3LOG_BASE + i, remap); |
3791 | if (remap && !dev_priv->l3_parity.remap_info[i/4]) |
3809 | if (remap && !dev_priv->l3_parity.remap_info[i/4]) |
3792 | DRM_DEBUG_DRIVER("Clearing remapped register\n"); |
3810 | DRM_DEBUG_DRIVER("Clearing remapped register\n"); |
3793 | I915_WRITE(GEN7_L3LOG_BASE + i, dev_priv->l3_parity.remap_info[i/4]); |
3811 | I915_WRITE(GEN7_L3LOG_BASE + i, dev_priv->l3_parity.remap_info[i/4]); |
3794 | } |
3812 | } |
3795 | 3813 | ||
3796 | /* Make sure all the writes land before disabling dop clock gating */ |
3814 | /* Make sure all the writes land before disabling dop clock gating */ |
3797 | POSTING_READ(GEN7_L3LOG_BASE); |
3815 | POSTING_READ(GEN7_L3LOG_BASE); |
3798 | 3816 | ||
3799 | I915_WRITE(GEN7_MISCCPCTL, misccpctl); |
3817 | I915_WRITE(GEN7_MISCCPCTL, misccpctl); |
3800 | } |
3818 | } |
3801 | 3819 | ||
3802 | void i915_gem_init_swizzling(struct drm_device *dev) |
3820 | void i915_gem_init_swizzling(struct drm_device *dev) |
3803 | { |
3821 | { |
3804 | drm_i915_private_t *dev_priv = dev->dev_private; |
3822 | drm_i915_private_t *dev_priv = dev->dev_private; |
3805 | 3823 | ||
3806 | if (INTEL_INFO(dev)->gen < 5 || |
3824 | if (INTEL_INFO(dev)->gen < 5 || |
3807 | dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE) |
3825 | dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE) |
3808 | return; |
3826 | return; |
3809 | 3827 | ||
3810 | I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | |
3828 | I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) | |
3811 | DISP_TILE_SURFACE_SWIZZLING); |
3829 | DISP_TILE_SURFACE_SWIZZLING); |
3812 | 3830 | ||
3813 | if (IS_GEN5(dev)) |
3831 | if (IS_GEN5(dev)) |
3814 | return; |
3832 | return; |
3815 | 3833 | ||
3816 | I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL); |
3834 | I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL); |
3817 | if (IS_GEN6(dev)) |
3835 | if (IS_GEN6(dev)) |
3818 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB)); |
3836 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB)); |
3819 | else if (IS_GEN7(dev)) |
3837 | else if (IS_GEN7(dev)) |
3820 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB)); |
3838 | I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB)); |
3821 | else |
3839 | else |
3822 | BUG(); |
3840 | BUG(); |
3823 | } |
3841 | } |
3824 | 3842 | ||
3825 | static bool |
3843 | static bool |
3826 | intel_enable_blt(struct drm_device *dev) |
3844 | intel_enable_blt(struct drm_device *dev) |
3827 | { |
3845 | { |
3828 | if (!HAS_BLT(dev)) |
3846 | if (!HAS_BLT(dev)) |
3829 | return false; |
3847 | return false; |
3830 | 3848 | ||
3831 | /* The blitter was dysfunctional on early prototypes */ |
3849 | /* The blitter was dysfunctional on early prototypes */ |
3832 | if (IS_GEN6(dev) && dev->pdev->revision < 8) { |
3850 | if (IS_GEN6(dev) && dev->pdev->revision < 8) { |
3833 | DRM_INFO("BLT not supported on this pre-production hardware;" |
3851 | DRM_INFO("BLT not supported on this pre-production hardware;" |
3834 | " graphics performance will be degraded.\n"); |
3852 | " graphics performance will be degraded.\n"); |
3835 | return false; |
3853 | return false; |
3836 | } |
3854 | } |
3837 | 3855 | ||
3838 | return true; |
3856 | return true; |
3839 | } |
3857 | } |
3840 | 3858 | ||
3841 | static int i915_gem_init_rings(struct drm_device *dev) |
3859 | static int i915_gem_init_rings(struct drm_device *dev) |
3842 | { |
3860 | { |
3843 | struct drm_i915_private *dev_priv = dev->dev_private; |
3861 | struct drm_i915_private *dev_priv = dev->dev_private; |
3844 | int ret; |
3862 | int ret; |
3845 | 3863 | ||
3846 | ret = intel_init_render_ring_buffer(dev); |
3864 | ret = intel_init_render_ring_buffer(dev); |
3847 | if (ret) |
3865 | if (ret) |
3848 | return ret; |
3866 | return ret; |
3849 | 3867 | ||
3850 | if (HAS_BSD(dev)) { |
3868 | if (HAS_BSD(dev)) { |
3851 | ret = intel_init_bsd_ring_buffer(dev); |
3869 | ret = intel_init_bsd_ring_buffer(dev); |
3852 | if (ret) |
3870 | if (ret) |
3853 | goto cleanup_render_ring; |
3871 | goto cleanup_render_ring; |
3854 | } |
3872 | } |
3855 | 3873 | ||
3856 | if (intel_enable_blt(dev)) { |
3874 | if (intel_enable_blt(dev)) { |
3857 | ret = intel_init_blt_ring_buffer(dev); |
3875 | ret = intel_init_blt_ring_buffer(dev); |
3858 | if (ret) |
3876 | if (ret) |
3859 | goto cleanup_bsd_ring; |
3877 | goto cleanup_bsd_ring; |
3860 | } |
3878 | } |
3861 | 3879 | ||
3862 | ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000)); |
3880 | ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000)); |
3863 | if (ret) |
3881 | if (ret) |
3864 | goto cleanup_blt_ring; |
3882 | goto cleanup_blt_ring; |
3865 | 3883 | ||
3866 | return 0; |
3884 | return 0; |
3867 | 3885 | ||
3868 | cleanup_blt_ring: |
3886 | cleanup_blt_ring: |
3869 | intel_cleanup_ring_buffer(&dev_priv->ring[BCS]); |
3887 | intel_cleanup_ring_buffer(&dev_priv->ring[BCS]); |
3870 | cleanup_bsd_ring: |
3888 | cleanup_bsd_ring: |
3871 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS]); |
3889 | intel_cleanup_ring_buffer(&dev_priv->ring[VCS]); |
3872 | cleanup_render_ring: |
3890 | cleanup_render_ring: |
3873 | intel_cleanup_ring_buffer(&dev_priv->ring[RCS]); |
3891 | intel_cleanup_ring_buffer(&dev_priv->ring[RCS]); |
3874 | 3892 | ||
3875 | return ret; |
3893 | return ret; |
3876 | } |
3894 | } |
3877 | 3895 | ||
3878 | int |
3896 | int |
3879 | i915_gem_init_hw(struct drm_device *dev) |
3897 | i915_gem_init_hw(struct drm_device *dev) |
3880 | { |
3898 | { |
3881 | drm_i915_private_t *dev_priv = dev->dev_private; |
3899 | drm_i915_private_t *dev_priv = dev->dev_private; |
3882 | int ret; |
3900 | int ret; |
3883 | 3901 | ||
3884 | if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) |
3902 | if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) |
3885 | return -EIO; |
3903 | return -EIO; |
3886 | 3904 | ||
3887 | if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1)) |
3905 | if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1)) |
3888 | I915_WRITE(0x9008, I915_READ(0x9008) | 0xf0000); |
3906 | I915_WRITE(0x9008, I915_READ(0x9008) | 0xf0000); |
- | 3907 | ||
- | 3908 | if (HAS_PCH_NOP(dev)) { |
|
- | 3909 | u32 temp = I915_READ(GEN7_MSG_CTL); |
|
- | 3910 | temp &= ~(WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK); |
|
- | 3911 | I915_WRITE(GEN7_MSG_CTL, temp); |
|
- | 3912 | } |
|
3889 | 3913 | ||
3890 | i915_gem_l3_remap(dev); |
3914 | i915_gem_l3_remap(dev); |
3891 | 3915 | ||
3892 | i915_gem_init_swizzling(dev); |
3916 | i915_gem_init_swizzling(dev); |
3893 | 3917 | ||
3894 | ret = i915_gem_init_rings(dev); |
3918 | ret = i915_gem_init_rings(dev); |
3895 | if (ret) |
3919 | if (ret) |
3896 | return ret; |
3920 | return ret; |
3897 | 3921 | ||
3898 | /* |
3922 | /* |
3899 | * XXX: There was some w/a described somewhere suggesting loading |
3923 | * XXX: There was some w/a described somewhere suggesting loading |
3900 | * contexts before PPGTT. |
3924 | * contexts before PPGTT. |
3901 | */ |
3925 | */ |
3902 | i915_gem_context_init(dev); |
3926 | i915_gem_context_init(dev); |
- | 3927 | if (dev_priv->mm.aliasing_ppgtt) { |
|
- | 3928 | ret = dev_priv->mm.aliasing_ppgtt->enable(dev); |
|
- | 3929 | if (ret) { |
|
3903 | i915_gem_init_ppgtt(dev); |
3930 | i915_gem_cleanup_aliasing_ppgtt(dev); |
- | 3931 | DRM_INFO("PPGTT enable failed. This is not fatal, but unexpected\n"); |
|
- | 3932 | } |
|
- | 3933 | } |
|
3904 | 3934 | ||
3905 | return 0; |
3935 | return 0; |
3906 | } |
3936 | } |
3907 | 3937 | ||
3908 | #define LFB_SIZE 0xC00000 |
3938 | #define LFB_SIZE 0xC00000 |
3909 | 3939 | ||
3910 | int i915_gem_init(struct drm_device *dev) |
3940 | int i915_gem_init(struct drm_device *dev) |
3911 | { |
3941 | { |
3912 | struct drm_i915_private *dev_priv = dev->dev_private; |
3942 | struct drm_i915_private *dev_priv = dev->dev_private; |
3913 | int ret; |
3943 | int ret; |
3914 | 3944 | ||
3915 | mutex_lock(&dev->struct_mutex); |
3945 | mutex_lock(&dev->struct_mutex); |
- | 3946 | ||
- | 3947 | if (IS_VALLEYVIEW(dev)) { |
|
- | 3948 | /* VLVA0 (potential hack), BIOS isn't actually waking us */ |
|
- | 3949 | I915_WRITE(VLV_GTLC_WAKE_CTRL, 1); |
|
- | 3950 | if (wait_for((I915_READ(VLV_GTLC_PW_STATUS) & 1) == 1, 10)) |
|
- | 3951 | DRM_DEBUG_DRIVER("allow wake ack timed out\n"); |
|
- | 3952 | } |
|
- | 3953 | ||
3916 | i915_gem_init_global_gtt(dev); |
3954 | i915_gem_init_global_gtt(dev); |
- | 3955 | ||
3917 | ret = i915_gem_init_hw(dev); |
3956 | ret = i915_gem_init_hw(dev); |
3918 | mutex_unlock(&dev->struct_mutex); |
3957 | mutex_unlock(&dev->struct_mutex); |
3919 | if (ret) { |
3958 | if (ret) { |
3920 | i915_gem_cleanup_aliasing_ppgtt(dev); |
3959 | i915_gem_cleanup_aliasing_ppgtt(dev); |
3921 | return ret; |
3960 | return ret; |
3922 | } |
3961 | } |
- | 3962 | ||
3923 | 3963 | ||
3924 | return 0; |
3964 | return 0; |
3925 | } |
3965 | } |
3926 | 3966 | ||
3927 | void |
3967 | void |
3928 | i915_gem_cleanup_ringbuffer(struct drm_device *dev) |
3968 | i915_gem_cleanup_ringbuffer(struct drm_device *dev) |
3929 | { |
3969 | { |
3930 | drm_i915_private_t *dev_priv = dev->dev_private; |
3970 | drm_i915_private_t *dev_priv = dev->dev_private; |
3931 | struct intel_ring_buffer *ring; |
3971 | struct intel_ring_buffer *ring; |
3932 | int i; |
3972 | int i; |
3933 | 3973 | ||
3934 | for_each_ring(ring, dev_priv, i) |
3974 | for_each_ring(ring, dev_priv, i) |
3935 | intel_cleanup_ring_buffer(ring); |
3975 | intel_cleanup_ring_buffer(ring); |
3936 | } |
3976 | } |
3937 | 3977 | ||
3938 | #if 0 |
3978 | #if 0 |
3939 | 3979 | ||
3940 | int |
3980 | int |
3941 | i915_gem_entervt_ioctl(struct drm_device *dev, void *data, |
3981 | i915_gem_entervt_ioctl(struct drm_device *dev, void *data, |
3942 | struct drm_file *file_priv) |
3982 | struct drm_file *file_priv) |
3943 | { |
3983 | { |
3944 | drm_i915_private_t *dev_priv = dev->dev_private; |
3984 | drm_i915_private_t *dev_priv = dev->dev_private; |
3945 | int ret; |
3985 | int ret; |
3946 | 3986 | ||
3947 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
3987 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
3948 | return 0; |
3988 | return 0; |
3949 | 3989 | ||
3950 | if (i915_reset_in_progress(&dev_priv->gpu_error)) { |
3990 | if (i915_reset_in_progress(&dev_priv->gpu_error)) { |
3951 | DRM_ERROR("Reenabling wedged hardware, good luck\n"); |
3991 | DRM_ERROR("Reenabling wedged hardware, good luck\n"); |
3952 | atomic_set(&dev_priv->gpu_error.reset_counter, 0); |
3992 | atomic_set(&dev_priv->gpu_error.reset_counter, 0); |
3953 | } |
3993 | } |
3954 | 3994 | ||
3955 | mutex_lock(&dev->struct_mutex); |
3995 | mutex_lock(&dev->struct_mutex); |
3956 | dev_priv->mm.suspended = 0; |
3996 | dev_priv->mm.suspended = 0; |
3957 | 3997 | ||
3958 | ret = i915_gem_init_hw(dev); |
3998 | ret = i915_gem_init_hw(dev); |
3959 | if (ret != 0) { |
3999 | if (ret != 0) { |
3960 | mutex_unlock(&dev->struct_mutex); |
4000 | mutex_unlock(&dev->struct_mutex); |
3961 | return ret; |
4001 | return ret; |
3962 | } |
4002 | } |
3963 | 4003 | ||
3964 | BUG_ON(!list_empty(&dev_priv->mm.active_list)); |
4004 | BUG_ON(!list_empty(&dev_priv->mm.active_list)); |
3965 | mutex_unlock(&dev->struct_mutex); |
4005 | mutex_unlock(&dev->struct_mutex); |
3966 | 4006 | ||
3967 | ret = drm_irq_install(dev); |
4007 | ret = drm_irq_install(dev); |
3968 | if (ret) |
4008 | if (ret) |
3969 | goto cleanup_ringbuffer; |
4009 | goto cleanup_ringbuffer; |
3970 | 4010 | ||
3971 | return 0; |
4011 | return 0; |
3972 | 4012 | ||
3973 | cleanup_ringbuffer: |
4013 | cleanup_ringbuffer: |
3974 | mutex_lock(&dev->struct_mutex); |
4014 | mutex_lock(&dev->struct_mutex); |
3975 | i915_gem_cleanup_ringbuffer(dev); |
4015 | i915_gem_cleanup_ringbuffer(dev); |
3976 | dev_priv->mm.suspended = 1; |
4016 | dev_priv->mm.suspended = 1; |
3977 | mutex_unlock(&dev->struct_mutex); |
4017 | mutex_unlock(&dev->struct_mutex); |
3978 | 4018 | ||
3979 | return ret; |
4019 | return ret; |
3980 | } |
4020 | } |
3981 | 4021 | ||
3982 | int |
4022 | int |
3983 | i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, |
4023 | i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, |
3984 | struct drm_file *file_priv) |
4024 | struct drm_file *file_priv) |
3985 | { |
4025 | { |
3986 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
4026 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
3987 | return 0; |
4027 | return 0; |
3988 | 4028 | ||
3989 | drm_irq_uninstall(dev); |
4029 | drm_irq_uninstall(dev); |
3990 | return i915_gem_idle(dev); |
4030 | return i915_gem_idle(dev); |
3991 | } |
4031 | } |
3992 | 4032 | ||
3993 | void |
4033 | void |
3994 | i915_gem_lastclose(struct drm_device *dev) |
4034 | i915_gem_lastclose(struct drm_device *dev) |
3995 | { |
4035 | { |
3996 | int ret; |
4036 | int ret; |
3997 | 4037 | ||
3998 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
4038 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
3999 | return; |
4039 | return; |
4000 | 4040 | ||
4001 | ret = i915_gem_idle(dev); |
4041 | ret = i915_gem_idle(dev); |
4002 | if (ret) |
4042 | if (ret) |
4003 | DRM_ERROR("failed to idle hardware: %d\n", ret); |
4043 | DRM_ERROR("failed to idle hardware: %d\n", ret); |
4004 | } |
4044 | } |
4005 | #endif |
4045 | #endif |
4006 | 4046 | ||
4007 | static void |
4047 | static void |
4008 | init_ring_lists(struct intel_ring_buffer *ring) |
4048 | init_ring_lists(struct intel_ring_buffer *ring) |
4009 | { |
4049 | { |
4010 | INIT_LIST_HEAD(&ring->active_list); |
4050 | INIT_LIST_HEAD(&ring->active_list); |
4011 | INIT_LIST_HEAD(&ring->request_list); |
4051 | INIT_LIST_HEAD(&ring->request_list); |
4012 | } |
4052 | } |
4013 | 4053 | ||
4014 | void |
4054 | void |
4015 | i915_gem_load(struct drm_device *dev) |
4055 | i915_gem_load(struct drm_device *dev) |
4016 | { |
4056 | { |
4017 | drm_i915_private_t *dev_priv = dev->dev_private; |
4057 | drm_i915_private_t *dev_priv = dev->dev_private; |
4018 | int i; |
4058 | int i; |
4019 | 4059 | ||
4020 | INIT_LIST_HEAD(&dev_priv->mm.active_list); |
4060 | INIT_LIST_HEAD(&dev_priv->mm.active_list); |
4021 | INIT_LIST_HEAD(&dev_priv->mm.inactive_list); |
4061 | INIT_LIST_HEAD(&dev_priv->mm.inactive_list); |
4022 | INIT_LIST_HEAD(&dev_priv->mm.unbound_list); |
4062 | INIT_LIST_HEAD(&dev_priv->mm.unbound_list); |
4023 | INIT_LIST_HEAD(&dev_priv->mm.bound_list); |
4063 | INIT_LIST_HEAD(&dev_priv->mm.bound_list); |
4024 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4064 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
4025 | for (i = 0; i < I915_NUM_RINGS; i++) |
4065 | for (i = 0; i < I915_NUM_RINGS; i++) |
4026 | init_ring_lists(&dev_priv->ring[i]); |
4066 | init_ring_lists(&dev_priv->ring[i]); |
4027 | for (i = 0; i < I915_MAX_NUM_FENCES; i++) |
4067 | for (i = 0; i < I915_MAX_NUM_FENCES; i++) |
4028 | INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list); |
4068 | INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list); |
4029 | INIT_DELAYED_WORK(&dev_priv->mm.retire_work, |
4069 | INIT_DELAYED_WORK(&dev_priv->mm.retire_work, |
4030 | i915_gem_retire_work_handler); |
4070 | i915_gem_retire_work_handler); |
4031 | init_waitqueue_head(&dev_priv->gpu_error.reset_queue); |
4071 | init_waitqueue_head(&dev_priv->gpu_error.reset_queue); |
4032 | 4072 | ||
4033 | /* On GEN3 we really need to make sure the ARB C3 LP bit is set */ |
4073 | /* On GEN3 we really need to make sure the ARB C3 LP bit is set */ |
4034 | if (IS_GEN3(dev)) { |
4074 | if (IS_GEN3(dev)) { |
4035 | I915_WRITE(MI_ARB_STATE, |
4075 | I915_WRITE(MI_ARB_STATE, |
4036 | _MASKED_BIT_ENABLE(MI_ARB_C3_LP_WRITE_ENABLE)); |
4076 | _MASKED_BIT_ENABLE(MI_ARB_C3_LP_WRITE_ENABLE)); |
4037 | } |
4077 | } |
4038 | 4078 | ||
4039 | dev_priv->relative_constants_mode = I915_EXEC_CONSTANTS_REL_GENERAL; |
4079 | dev_priv->relative_constants_mode = I915_EXEC_CONSTANTS_REL_GENERAL; |
- | 4080 | ||
- | 4081 | if (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev)) |
|
4040 | 4082 | dev_priv->num_fence_regs = 32; |
|
4041 | if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
4083 | else if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) |
4042 | dev_priv->num_fence_regs = 16; |
4084 | dev_priv->num_fence_regs = 16; |
4043 | else |
4085 | else |
4044 | dev_priv->num_fence_regs = 8; |
4086 | dev_priv->num_fence_regs = 8; |
4045 | 4087 | ||
4046 | /* Initialize fence registers to zero */ |
4088 | /* Initialize fence registers to zero */ |
- | 4089 | INIT_LIST_HEAD(&dev_priv->mm.fence_list); |
|
4047 | i915_gem_reset_fences(dev); |
4090 | i915_gem_restore_fences(dev); |
4048 | 4091 | ||
4049 | i915_gem_detect_bit_6_swizzle(dev); |
4092 | i915_gem_detect_bit_6_swizzle(dev); |
4050 | 4093 | ||
4051 | dev_priv->mm.interruptible = true; |
4094 | dev_priv->mm.interruptible = true; |
4052 | 4095 | ||
4053 | // dev_priv->mm.inactive_shrinker.shrink = i915_gem_inactive_shrink; |
4096 | // dev_priv->mm.inactive_shrinker.shrink = i915_gem_inactive_shrink; |
4054 | // dev_priv->mm.inactive_shrinker.seeks = DEFAULT_SEEKS; |
4097 | // dev_priv->mm.inactive_shrinker.seeks = DEFAULT_SEEKS; |
4055 | // register_shrinker(&dev_priv->mm.inactive_shrinker); |
4098 | // register_shrinker(&dev_priv->mm.inactive_shrinker); |
4056 | }>>>>>>><>>>>=>>><>><>>><>><>><>><>><>=>>>>=><=>> |
4099 | }>>>>>>><>>>>=>>><>><>>><>><>><>><>><>=>>>>>=><=>> |
4057 | //> |
4100 | //> |
4058 | //>>><>=>>><>=>>>6)><6)>6) |
4101 | //>>><>=>><>=>>6)><6)>6) |
4059 | #define><6) |
4102 | #define><6) |
4060 | #define>6)><6)>6) |
4103 | #define>6)><6)>6) |
4061 | #define><6) |
4104 | #define><6) |
4062 | #define> |
4105 | #define> |