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Rev | Author | Line No. | Line |
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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 | |||
3263 | Serge | 46 | static struct drm_i915_gem_object *fb_obj; |
2332 | Serge | 47 | |
3263 | Serge | 48 | struct drm_i915_gem_object *get_fb_obj() |
49 | { |
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50 | return fb_obj; |
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51 | }; |
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52 | |||
2335 | Serge | 53 | struct fb_info *framebuffer_alloc(size_t size, struct device *dev) |
54 | { |
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55 | #define BYTES_PER_LONG (BITS_PER_LONG/8) |
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56 | #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
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57 | int fb_info_size = sizeof(struct fb_info); |
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58 | struct fb_info *info; |
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59 | char *p; |
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60 | |||
61 | if (size) |
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62 | fb_info_size += PADDING; |
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63 | |||
64 | p = kzalloc(fb_info_size + size, GFP_KERNEL); |
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65 | |||
66 | if (!p) |
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67 | return NULL; |
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68 | |||
69 | info = (struct fb_info *) p; |
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70 | |||
71 | if (size) |
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72 | info->par = p + fb_info_size; |
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73 | |||
74 | return info; |
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75 | #undef PADDING |
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76 | #undef BYTES_PER_LONG |
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77 | } |
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78 | |||
79 | |||
80 | static struct fb_ops intelfb_ops = { |
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3031 | serge | 81 | .owner = THIS_MODULE, |
2335 | Serge | 82 | .fb_check_var = drm_fb_helper_check_var, |
83 | .fb_set_par = drm_fb_helper_set_par, |
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84 | // .fb_fillrect = cfb_fillrect, |
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85 | // .fb_copyarea = cfb_copyarea, |
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86 | // .fb_imageblit = cfb_imageblit, |
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87 | // .fb_pan_display = drm_fb_helper_pan_display, |
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88 | .fb_blank = drm_fb_helper_blank, |
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89 | // .fb_setcmap = drm_fb_helper_setcmap, |
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90 | // .fb_debug_enter = drm_fb_helper_debug_enter, |
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91 | // .fb_debug_leave = drm_fb_helper_debug_leave, |
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92 | }; |
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93 | |||
3480 | Serge | 94 | static int intelfb_create(struct drm_fb_helper *helper, |
2335 | Serge | 95 | struct drm_fb_helper_surface_size *sizes) |
96 | { |
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3480 | Serge | 97 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
2335 | Serge | 98 | struct drm_device *dev = ifbdev->helper.dev; |
99 | struct drm_i915_private *dev_priv = dev->dev_private; |
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100 | struct fb_info *info; |
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101 | struct drm_framebuffer *fb; |
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3031 | serge | 102 | struct drm_mode_fb_cmd2 mode_cmd = {}; |
2335 | Serge | 103 | struct drm_i915_gem_object *obj; |
104 | struct device *device = &dev->pdev->dev; |
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105 | int size, ret; |
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106 | |||
107 | /* we don't do packed 24bpp */ |
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108 | if (sizes->surface_bpp == 24) |
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109 | sizes->surface_bpp = 32; |
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110 | |||
111 | mode_cmd.width = sizes->surface_width; |
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112 | mode_cmd.height = sizes->surface_height; |
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113 | |||
2342 | Serge | 114 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) / |
115 | 8), 64); |
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116 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
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117 | sizes->surface_depth); |
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2335 | Serge | 118 | |
2342 | Serge | 119 | size = mode_cmd.pitches[0] * mode_cmd.height; |
2335 | Serge | 120 | size = ALIGN(size, PAGE_SIZE); |
121 | obj = i915_gem_alloc_object(dev, size); |
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122 | if (!obj) { |
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123 | DRM_ERROR("failed to allocate framebuffer\n"); |
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124 | ret = -ENOMEM; |
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125 | goto out; |
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126 | } |
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127 | |||
128 | mutex_lock(&dev->struct_mutex); |
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129 | |||
2336 | Serge | 130 | #if 0 |
131 | // skip this part and use existing framebiffer |
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132 | |||
2335 | Serge | 133 | /* Flush everything out, we'll be doing GTT only from now on */ |
134 | ret = intel_pin_and_fence_fb_obj(dev, obj, false); |
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135 | if (ret) { |
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136 | DRM_ERROR("failed to pin fb: %d\n", ret); |
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137 | goto out_unref; |
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138 | } |
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2336 | Serge | 139 | #endif |
2335 | Serge | 140 | |
2336 | Serge | 141 | /***********************************************************************/ |
142 | { |
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143 | #define LFB_SIZE 0xC00000 |
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144 | |||
145 | static struct drm_mm_node lfb_vm_node; |
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146 | |||
147 | lfb_vm_node.size = LFB_SIZE; |
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148 | lfb_vm_node.start = 0; |
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149 | lfb_vm_node.mm = NULL; |
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150 | |||
151 | obj->gtt_space = &lfb_vm_node; |
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152 | obj->gtt_offset = 0; |
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2344 | Serge | 153 | obj->pin_count = 2; |
3263 | Serge | 154 | obj->cache_level = I915_CACHE_NONE; |
155 | obj->base.write_domain = 0; |
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156 | obj->base.read_domains = I915_GEM_DOMAIN_GTT; |
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157 | |||
2336 | Serge | 158 | } |
159 | /***********************************************************************/ |
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160 | |||
2335 | Serge | 161 | info = framebuffer_alloc(0, device); |
162 | if (!info) { |
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163 | ret = -ENOMEM; |
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164 | goto out_unpin; |
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165 | } |
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166 | |||
167 | info->par = ifbdev; |
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168 | |||
169 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
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170 | if (ret) |
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171 | goto out_unpin; |
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172 | |||
173 | fb = &ifbdev->ifb.base; |
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174 | |||
175 | ifbdev->helper.fb = fb; |
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176 | ifbdev->helper.fbdev = info; |
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177 | |||
178 | strcpy(info->fix.id, "inteldrmfb"); |
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179 | |||
180 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
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181 | info->fbops = &intelfb_ops; |
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182 | |||
183 | /* setup aperture base/size for vesafb takeover */ |
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184 | info->apertures = alloc_apertures(1); |
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185 | if (!info->apertures) { |
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186 | ret = -ENOMEM; |
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187 | goto out_unpin; |
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188 | } |
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189 | info->apertures->ranges[0].base = dev->mode_config.fb_base; |
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3480 | Serge | 190 | info->apertures->ranges[0].size = dev_priv->gtt.mappable_end; |
2335 | Serge | 191 | |
192 | info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; |
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193 | info->fix.smem_len = size; |
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194 | |||
3263 | Serge | 195 | info->screen_base = (void*) 0xFE000000; |
2335 | Serge | 196 | info->screen_size = size; |
197 | |||
198 | // memset(info->screen_base, 0, size); |
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199 | |||
2342 | Serge | 200 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
2335 | Serge | 201 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
202 | |||
3031 | serge | 203 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
204 | |||
2335 | Serge | 205 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
206 | fb->width, fb->height, |
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207 | obj->gtt_offset, obj); |
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208 | |||
209 | |||
210 | mutex_unlock(&dev->struct_mutex); |
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3031 | serge | 211 | |
3263 | Serge | 212 | fb_obj = obj; |
213 | |||
2335 | Serge | 214 | return 0; |
215 | |||
216 | out_unpin: |
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2344 | Serge | 217 | i915_gem_object_unpin(obj); |
2335 | Serge | 218 | out_unref: |
2344 | Serge | 219 | drm_gem_object_unreference(&obj->base); |
2335 | Serge | 220 | mutex_unlock(&dev->struct_mutex); |
221 | out: |
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222 | return ret; |
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223 | } |
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2342 | Serge | 224 | |
2332 | Serge | 225 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
226 | .gamma_set = intel_crtc_fb_gamma_set, |
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227 | .gamma_get = intel_crtc_fb_gamma_get, |
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3480 | Serge | 228 | .fb_probe = intelfb_create, |
2332 | Serge | 229 | }; |
230 | |||
231 | |||
232 | int intel_fbdev_init(struct drm_device *dev) |
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233 | { |
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234 | struct intel_fbdev *ifbdev; |
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235 | drm_i915_private_t *dev_priv = dev->dev_private; |
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236 | int ret; |
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237 | |||
238 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); |
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239 | if (!ifbdev) |
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240 | return -ENOMEM; |
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241 | |||
242 | dev_priv->fbdev = ifbdev; |
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243 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
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244 | |||
245 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
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3746 | Serge | 246 | INTEL_INFO(dev)->num_pipes, |
2332 | Serge | 247 | INTELFB_CONN_LIMIT); |
248 | if (ret) { |
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249 | kfree(ifbdev); |
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250 | return ret; |
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251 | } |
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252 | |||
253 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
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254 | |||
3037 | serge | 255 | return 0; |
2332 | Serge | 256 | } |
257 | |||
3480 | Serge | 258 | void intel_fbdev_initial_config(struct drm_device *dev) |
259 | { |
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260 | drm_i915_private_t *dev_priv = dev->dev_private; |
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2332 | Serge | 261 | |
3480 | Serge | 262 | /* Due to peculiar init order wrt to hpd handling this is separate. */ |
263 | drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32); |
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264 | } |
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265 | |||
266 | void intel_fb_output_poll_changed(struct drm_device *dev) |
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267 | { |
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268 | drm_i915_private_t *dev_priv = dev->dev_private; |
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269 | drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); |
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270 | } |