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2332 | Serge | 1 | /* |
2 | * Copyright © 2007 David Airlie |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the "Software"), |
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6 | * to deal in the Software without restriction, including without limitation |
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7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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8 | * and/or sell copies of the Software, and to permit persons to whom the |
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9 | * Software is furnished to do so, subject to the following conditions: |
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10 | * |
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11 | * The above copyright notice and this permission notice (including the next |
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12 | * paragraph) shall be included in all copies or substantial portions of the |
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13 | * Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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21 | * DEALINGS IN THE SOFTWARE. |
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22 | * |
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23 | * Authors: |
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24 | * David Airlie |
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25 | */ |
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26 | |||
27 | #include |
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28 | #include |
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29 | #include |
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30 | #include |
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31 | //#include |
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32 | //#include |
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33 | #include |
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34 | //#include |
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35 | #include |
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36 | //#include |
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37 | //#include |
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38 | |||
3031 | serge | 39 | #include |
40 | #include |
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41 | #include |
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2332 | Serge | 42 | #include "intel_drv.h" |
3031 | serge | 43 | #include |
2332 | Serge | 44 | #include "i915_drv.h" |
45 | |||
4280 | Serge | 46 | struct drm_i915_gem_object *fb_obj; |
2332 | Serge | 47 | |
2335 | Serge | 48 | struct fb_info *framebuffer_alloc(size_t size, struct device *dev) |
49 | { |
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50 | #define BYTES_PER_LONG (BITS_PER_LONG/8) |
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51 | #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
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52 | int fb_info_size = sizeof(struct fb_info); |
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53 | struct fb_info *info; |
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54 | char *p; |
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55 | |||
56 | if (size) |
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57 | fb_info_size += PADDING; |
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58 | |||
59 | p = kzalloc(fb_info_size + size, GFP_KERNEL); |
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60 | |||
61 | if (!p) |
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62 | return NULL; |
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63 | |||
64 | info = (struct fb_info *) p; |
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65 | |||
66 | if (size) |
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67 | info->par = p + fb_info_size; |
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68 | |||
69 | return info; |
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70 | #undef PADDING |
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71 | #undef BYTES_PER_LONG |
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72 | } |
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73 | |||
74 | |||
75 | static struct fb_ops intelfb_ops = { |
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3031 | serge | 76 | .owner = THIS_MODULE, |
2335 | Serge | 77 | .fb_check_var = drm_fb_helper_check_var, |
78 | .fb_set_par = drm_fb_helper_set_par, |
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79 | // .fb_fillrect = cfb_fillrect, |
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80 | // .fb_copyarea = cfb_copyarea, |
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81 | // .fb_imageblit = cfb_imageblit, |
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82 | // .fb_pan_display = drm_fb_helper_pan_display, |
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83 | .fb_blank = drm_fb_helper_blank, |
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84 | // .fb_setcmap = drm_fb_helper_setcmap, |
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85 | // .fb_debug_enter = drm_fb_helper_debug_enter, |
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86 | // .fb_debug_leave = drm_fb_helper_debug_leave, |
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87 | }; |
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88 | |||
3480 | Serge | 89 | static int intelfb_create(struct drm_fb_helper *helper, |
2335 | Serge | 90 | struct drm_fb_helper_surface_size *sizes) |
91 | { |
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4104 | Serge | 92 | struct intel_fbdev *ifbdev = |
93 | container_of(helper, struct intel_fbdev, helper); |
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94 | struct drm_device *dev = helper->dev; |
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2335 | Serge | 95 | struct drm_i915_private *dev_priv = dev->dev_private; |
96 | struct fb_info *info; |
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97 | struct drm_framebuffer *fb; |
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3031 | serge | 98 | struct drm_mode_fb_cmd2 mode_cmd = {}; |
2335 | Serge | 99 | struct drm_i915_gem_object *obj; |
100 | struct device *device = &dev->pdev->dev; |
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101 | int size, ret; |
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102 | |||
103 | /* we don't do packed 24bpp */ |
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104 | if (sizes->surface_bpp == 24) |
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105 | sizes->surface_bpp = 32; |
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106 | |||
107 | mode_cmd.width = sizes->surface_width; |
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108 | mode_cmd.height = sizes->surface_height; |
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109 | |||
2342 | Serge | 110 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) / |
4280 | Serge | 111 | 8), 512); |
2342 | Serge | 112 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
113 | sizes->surface_depth); |
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2335 | Serge | 114 | |
2342 | Serge | 115 | size = mode_cmd.pitches[0] * mode_cmd.height; |
2335 | Serge | 116 | size = ALIGN(size, PAGE_SIZE); |
4280 | Serge | 117 | obj = fb_obj; |
2335 | Serge | 118 | if (!obj) { |
119 | DRM_ERROR("failed to allocate framebuffer\n"); |
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120 | ret = -ENOMEM; |
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121 | goto out; |
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122 | } |
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123 | |||
4280 | Serge | 124 | obj->stride = mode_cmd.pitches[0]; |
125 | |||
2335 | Serge | 126 | mutex_lock(&dev->struct_mutex); |
127 | |||
128 | /* Flush everything out, we'll be doing GTT only from now on */ |
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4280 | Serge | 129 | ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); |
2335 | Serge | 130 | if (ret) { |
131 | DRM_ERROR("failed to pin fb: %d\n", ret); |
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132 | goto out_unref; |
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133 | } |
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134 | |||
135 | info = framebuffer_alloc(0, device); |
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136 | if (!info) { |
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137 | ret = -ENOMEM; |
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138 | goto out_unpin; |
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139 | } |
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140 | |||
4104 | Serge | 141 | info->par = helper; |
2335 | Serge | 142 | |
143 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
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144 | if (ret) |
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145 | goto out_unpin; |
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146 | |||
147 | fb = &ifbdev->ifb.base; |
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148 | |||
149 | ifbdev->helper.fb = fb; |
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150 | ifbdev->helper.fbdev = info; |
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151 | |||
152 | strcpy(info->fix.id, "inteldrmfb"); |
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153 | |||
154 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
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155 | info->fbops = &intelfb_ops; |
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156 | |||
157 | /* setup aperture base/size for vesafb takeover */ |
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158 | info->apertures = alloc_apertures(1); |
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159 | if (!info->apertures) { |
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160 | ret = -ENOMEM; |
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161 | goto out_unpin; |
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162 | } |
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163 | info->apertures->ranges[0].base = dev->mode_config.fb_base; |
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3480 | Serge | 164 | info->apertures->ranges[0].size = dev_priv->gtt.mappable_end; |
2335 | Serge | 165 | |
4104 | Serge | 166 | info->fix.smem_start = dev->mode_config.fb_base + i915_gem_obj_ggtt_offset(obj); |
2335 | Serge | 167 | info->fix.smem_len = size; |
168 | |||
3263 | Serge | 169 | info->screen_base = (void*) 0xFE000000; |
2335 | Serge | 170 | info->screen_size = size; |
171 | |||
4280 | Serge | 172 | /* This driver doesn't need a VT switch to restore the mode on resume */ |
173 | info->skip_vt_switch = true; |
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2335 | Serge | 174 | |
2342 | Serge | 175 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
2335 | Serge | 176 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
177 | |||
3031 | serge | 178 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
179 | |||
4104 | Serge | 180 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08lx, bo %p\n", |
2335 | Serge | 181 | fb->width, fb->height, |
4104 | Serge | 182 | i915_gem_obj_ggtt_offset(obj), obj); |
2335 | Serge | 183 | |
184 | |||
185 | mutex_unlock(&dev->struct_mutex); |
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186 | return 0; |
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187 | |||
188 | out_unpin: |
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2344 | Serge | 189 | i915_gem_object_unpin(obj); |
2335 | Serge | 190 | out_unref: |
2344 | Serge | 191 | drm_gem_object_unreference(&obj->base); |
2335 | Serge | 192 | mutex_unlock(&dev->struct_mutex); |
193 | out: |
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194 | return ret; |
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195 | } |
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2342 | Serge | 196 | |
2332 | Serge | 197 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
198 | .gamma_set = intel_crtc_fb_gamma_set, |
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199 | .gamma_get = intel_crtc_fb_gamma_get, |
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3480 | Serge | 200 | .fb_probe = intelfb_create, |
2332 | Serge | 201 | }; |
202 | |||
203 | |||
204 | int intel_fbdev_init(struct drm_device *dev) |
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205 | { |
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206 | struct intel_fbdev *ifbdev; |
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4104 | Serge | 207 | struct drm_i915_private *dev_priv = dev->dev_private; |
2332 | Serge | 208 | int ret; |
209 | |||
210 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); |
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211 | if (!ifbdev) |
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212 | return -ENOMEM; |
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213 | |||
214 | dev_priv->fbdev = ifbdev; |
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215 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
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216 | |||
217 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
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3746 | Serge | 218 | INTEL_INFO(dev)->num_pipes, |
2332 | Serge | 219 | INTELFB_CONN_LIMIT); |
220 | if (ret) { |
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221 | kfree(ifbdev); |
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222 | return ret; |
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223 | } |
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224 | |||
225 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
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226 | |||
3037 | serge | 227 | return 0; |
2332 | Serge | 228 | } |
229 | |||
3480 | Serge | 230 | void intel_fbdev_initial_config(struct drm_device *dev) |
231 | { |
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4104 | Serge | 232 | struct drm_i915_private *dev_priv = dev->dev_private; |
2332 | Serge | 233 | |
3480 | Serge | 234 | /* Due to peculiar init order wrt to hpd handling this is separate. */ |
235 | drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32); |
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236 | } |
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237 | |||
238 | void intel_fb_output_poll_changed(struct drm_device *dev) |
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239 | { |
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4104 | Serge | 240 | struct drm_i915_private *dev_priv = dev->dev_private; |
3480 | Serge | 241 | drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); |
242 | } |