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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 | |||
46 | |||
2335 | Serge | 47 | struct fb_info *framebuffer_alloc(size_t size, struct device *dev) |
48 | { |
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49 | #define BYTES_PER_LONG (BITS_PER_LONG/8) |
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50 | #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
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51 | int fb_info_size = sizeof(struct fb_info); |
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52 | struct fb_info *info; |
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53 | char *p; |
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54 | |||
55 | if (size) |
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56 | fb_info_size += PADDING; |
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57 | |||
58 | p = kzalloc(fb_info_size + size, GFP_KERNEL); |
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59 | |||
60 | if (!p) |
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61 | return NULL; |
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62 | |||
63 | info = (struct fb_info *) p; |
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64 | |||
65 | if (size) |
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66 | info->par = p + fb_info_size; |
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67 | |||
68 | return info; |
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69 | #undef PADDING |
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70 | #undef BYTES_PER_LONG |
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71 | } |
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72 | |||
73 | |||
74 | static struct fb_ops intelfb_ops = { |
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3031 | serge | 75 | .owner = THIS_MODULE, |
2335 | Serge | 76 | .fb_check_var = drm_fb_helper_check_var, |
77 | .fb_set_par = drm_fb_helper_set_par, |
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78 | // .fb_fillrect = cfb_fillrect, |
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79 | // .fb_copyarea = cfb_copyarea, |
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80 | // .fb_imageblit = cfb_imageblit, |
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81 | // .fb_pan_display = drm_fb_helper_pan_display, |
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82 | .fb_blank = drm_fb_helper_blank, |
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83 | // .fb_setcmap = drm_fb_helper_setcmap, |
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84 | // .fb_debug_enter = drm_fb_helper_debug_enter, |
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85 | // .fb_debug_leave = drm_fb_helper_debug_leave, |
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86 | }; |
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87 | |||
88 | static int intelfb_create(struct intel_fbdev *ifbdev, |
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89 | struct drm_fb_helper_surface_size *sizes) |
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90 | { |
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91 | struct drm_device *dev = ifbdev->helper.dev; |
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92 | struct drm_i915_private *dev_priv = dev->dev_private; |
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93 | struct fb_info *info; |
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94 | struct drm_framebuffer *fb; |
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3031 | serge | 95 | struct drm_mode_fb_cmd2 mode_cmd = {}; |
2335 | Serge | 96 | struct drm_i915_gem_object *obj; |
97 | struct device *device = &dev->pdev->dev; |
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98 | int size, ret; |
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99 | |||
100 | /* we don't do packed 24bpp */ |
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101 | if (sizes->surface_bpp == 24) |
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102 | sizes->surface_bpp = 32; |
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103 | |||
104 | mode_cmd.width = sizes->surface_width; |
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105 | mode_cmd.height = sizes->surface_height; |
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106 | |||
2342 | Serge | 107 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) / |
108 | 8), 64); |
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109 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
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110 | sizes->surface_depth); |
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2335 | Serge | 111 | |
2342 | Serge | 112 | size = mode_cmd.pitches[0] * mode_cmd.height; |
2335 | Serge | 113 | size = ALIGN(size, PAGE_SIZE); |
114 | obj = i915_gem_alloc_object(dev, size); |
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115 | if (!obj) { |
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116 | DRM_ERROR("failed to allocate framebuffer\n"); |
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117 | ret = -ENOMEM; |
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118 | goto out; |
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119 | } |
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120 | |||
121 | mutex_lock(&dev->struct_mutex); |
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122 | |||
2336 | Serge | 123 | #if 0 |
124 | // skip this part and use existing framebiffer |
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125 | |||
2335 | Serge | 126 | /* Flush everything out, we'll be doing GTT only from now on */ |
127 | ret = intel_pin_and_fence_fb_obj(dev, obj, false); |
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128 | if (ret) { |
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129 | DRM_ERROR("failed to pin fb: %d\n", ret); |
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130 | goto out_unref; |
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131 | } |
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2336 | Serge | 132 | #endif |
2335 | Serge | 133 | |
2336 | Serge | 134 | /***********************************************************************/ |
135 | { |
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136 | #define LFB_SIZE 0xC00000 |
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137 | |||
138 | static struct drm_mm_node lfb_vm_node; |
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139 | |||
140 | lfb_vm_node.size = LFB_SIZE; |
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141 | lfb_vm_node.start = 0; |
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142 | lfb_vm_node.mm = NULL; |
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143 | |||
144 | obj->gtt_space = &lfb_vm_node; |
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145 | obj->gtt_offset = 0; |
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2344 | Serge | 146 | obj->pin_count = 2; |
2336 | Serge | 147 | } |
148 | /***********************************************************************/ |
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149 | |||
2335 | Serge | 150 | info = framebuffer_alloc(0, device); |
151 | if (!info) { |
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152 | ret = -ENOMEM; |
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153 | goto out_unpin; |
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154 | } |
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155 | |||
156 | info->par = ifbdev; |
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157 | |||
158 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
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159 | if (ret) |
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160 | goto out_unpin; |
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161 | |||
162 | fb = &ifbdev->ifb.base; |
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163 | |||
164 | ifbdev->helper.fb = fb; |
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165 | ifbdev->helper.fbdev = info; |
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166 | |||
167 | strcpy(info->fix.id, "inteldrmfb"); |
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168 | |||
169 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
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170 | info->fbops = &intelfb_ops; |
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171 | |||
172 | /* setup aperture base/size for vesafb takeover */ |
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173 | info->apertures = alloc_apertures(1); |
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174 | if (!info->apertures) { |
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175 | ret = -ENOMEM; |
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176 | goto out_unpin; |
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177 | } |
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178 | info->apertures->ranges[0].base = dev->mode_config.fb_base; |
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179 | info->apertures->ranges[0].size = |
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180 | dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; |
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181 | |||
182 | info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; |
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183 | info->fix.smem_len = size; |
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184 | |||
3031 | serge | 185 | info->screen_base = 0xFE000000; |
2335 | Serge | 186 | info->screen_size = size; |
187 | |||
188 | // memset(info->screen_base, 0, size); |
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189 | |||
2342 | Serge | 190 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
2335 | Serge | 191 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
192 | |||
3031 | serge | 193 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
194 | |||
2335 | Serge | 195 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
196 | fb->width, fb->height, |
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197 | obj->gtt_offset, obj); |
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198 | |||
199 | |||
200 | mutex_unlock(&dev->struct_mutex); |
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201 | // vga_switcheroo_client_fb_set(dev->pdev, info); |
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3031 | serge | 202 | |
2335 | Serge | 203 | return 0; |
204 | |||
205 | out_unpin: |
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2344 | Serge | 206 | i915_gem_object_unpin(obj); |
2335 | Serge | 207 | out_unref: |
2344 | Serge | 208 | drm_gem_object_unreference(&obj->base); |
2335 | Serge | 209 | mutex_unlock(&dev->struct_mutex); |
210 | out: |
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211 | return ret; |
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212 | } |
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2342 | Serge | 213 | |
2335 | Serge | 214 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
215 | struct drm_fb_helper_surface_size *sizes) |
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216 | { |
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217 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
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218 | int new_fb = 0; |
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219 | int ret; |
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220 | |||
221 | if (!helper->fb) { |
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222 | ret = intelfb_create(ifbdev, sizes); |
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223 | if (ret) |
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224 | return ret; |
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225 | new_fb = 1; |
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226 | } |
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227 | return new_fb; |
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228 | } |
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229 | |||
2332 | Serge | 230 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
231 | .gamma_set = intel_crtc_fb_gamma_set, |
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232 | .gamma_get = intel_crtc_fb_gamma_get, |
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2335 | Serge | 233 | .fb_probe = intel_fb_find_or_create_single, |
2332 | Serge | 234 | }; |
235 | |||
236 | |||
237 | int intel_fbdev_init(struct drm_device *dev) |
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238 | { |
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239 | struct intel_fbdev *ifbdev; |
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240 | drm_i915_private_t *dev_priv = dev->dev_private; |
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241 | int ret; |
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242 | |||
243 | ENTER(); |
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244 | |||
245 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); |
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246 | if (!ifbdev) |
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247 | return -ENOMEM; |
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248 | |||
249 | dev_priv->fbdev = ifbdev; |
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250 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
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251 | |||
252 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
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253 | dev_priv->num_pipe, |
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254 | INTELFB_CONN_LIMIT); |
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255 | if (ret) { |
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256 | kfree(ifbdev); |
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257 | return ret; |
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258 | } |
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259 | |||
260 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
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261 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
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262 | |||
263 | LEAVE(); |
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264 | return 0; |
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265 | }><> |
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266 |