| 45,10 → 45,167 |
|---|
| #include "i915_drv.h" |
| |
| |
| struct fb_info *framebuffer_alloc(size_t size, struct device *dev) |
| { |
| #define BYTES_PER_LONG (BITS_PER_LONG/8) |
| #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
| int fb_info_size = sizeof(struct fb_info); |
| struct fb_info *info; |
| char *p; |
| |
| if (size) |
| fb_info_size += PADDING; |
| |
| p = kzalloc(fb_info_size + size, GFP_KERNEL); |
| |
| if (!p) |
| return NULL; |
| |
| info = (struct fb_info *) p; |
| |
| if (size) |
| info->par = p + fb_info_size; |
| |
| return info; |
| #undef PADDING |
| #undef BYTES_PER_LONG |
| } |
| |
| |
| static struct fb_ops intelfb_ops = { |
| // .owner = THIS_MODULE, |
| .fb_check_var = drm_fb_helper_check_var, |
| .fb_set_par = drm_fb_helper_set_par, |
| // .fb_fillrect = cfb_fillrect, |
| // .fb_copyarea = cfb_copyarea, |
| // .fb_imageblit = cfb_imageblit, |
| // .fb_pan_display = drm_fb_helper_pan_display, |
| .fb_blank = drm_fb_helper_blank, |
| // .fb_setcmap = drm_fb_helper_setcmap, |
| // .fb_debug_enter = drm_fb_helper_debug_enter, |
| // .fb_debug_leave = drm_fb_helper_debug_leave, |
| }; |
| |
| static int intelfb_create(struct intel_fbdev *ifbdev, |
| struct drm_fb_helper_surface_size *sizes) |
| { |
| struct drm_device *dev = ifbdev->helper.dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct fb_info *info; |
| struct drm_framebuffer *fb; |
| struct drm_mode_fb_cmd mode_cmd; |
| struct drm_i915_gem_object *obj; |
| struct device *device = &dev->pdev->dev; |
| int size, ret; |
| |
| /* we don't do packed 24bpp */ |
| if (sizes->surface_bpp == 24) |
| sizes->surface_bpp = 32; |
| |
| mode_cmd.width = sizes->surface_width; |
| mode_cmd.height = sizes->surface_height; |
| |
| mode_cmd.bpp = sizes->surface_bpp; |
| mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64); |
| mode_cmd.depth = sizes->surface_depth; |
| |
| size = mode_cmd.pitch * mode_cmd.height; |
| size = ALIGN(size, PAGE_SIZE); |
| obj = i915_gem_alloc_object(dev, size); |
| if (!obj) { |
| DRM_ERROR("failed to allocate framebuffer\n"); |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| /* Flush everything out, we'll be doing GTT only from now on */ |
| ret = intel_pin_and_fence_fb_obj(dev, obj, false); |
| if (ret) { |
| DRM_ERROR("failed to pin fb: %d\n", ret); |
| goto out_unref; |
| } |
| |
| info = framebuffer_alloc(0, device); |
| if (!info) { |
| ret = -ENOMEM; |
| goto out_unpin; |
| } |
| |
| info->par = ifbdev; |
| |
| ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
| if (ret) |
| goto out_unpin; |
| |
| fb = &ifbdev->ifb.base; |
| |
| ifbdev->helper.fb = fb; |
| ifbdev->helper.fbdev = info; |
| |
| strcpy(info->fix.id, "inteldrmfb"); |
| |
| info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
| info->fbops = &intelfb_ops; |
| |
| /* setup aperture base/size for vesafb takeover */ |
| info->apertures = alloc_apertures(1); |
| if (!info->apertures) { |
| ret = -ENOMEM; |
| goto out_unpin; |
| } |
| info->apertures->ranges[0].base = dev->mode_config.fb_base; |
| info->apertures->ranges[0].size = |
| dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; |
| |
| info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; |
| info->fix.smem_len = size; |
| |
| info->screen_size = size; |
| |
| // memset(info->screen_base, 0, size); |
| |
| drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
| drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
| |
| DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
| fb->width, fb->height, |
| obj->gtt_offset, obj); |
| |
| |
| mutex_unlock(&dev->struct_mutex); |
| // vga_switcheroo_client_fb_set(dev->pdev, info); |
| return 0; |
| |
| out_unpin: |
| // i915_gem_object_unpin(obj); |
| out_unref: |
| // drm_gem_object_unreference(&obj->base); |
| mutex_unlock(&dev->struct_mutex); |
| out: |
| return ret; |
| } |
| static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
| struct drm_fb_helper_surface_size *sizes) |
| { |
| struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
| int new_fb = 0; |
| int ret; |
| |
| if (!helper->fb) { |
| ret = intelfb_create(ifbdev, sizes); |
| if (ret) |
| return ret; |
| new_fb = 1; |
| } |
| return new_fb; |
| } |
| |
| static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
| .gamma_set = intel_crtc_fb_gamma_set, |
| .gamma_get = intel_crtc_fb_gamma_get, |
| // .fb_probe = intel_fb_find_or_create_single, |
| .fb_probe = intel_fb_find_or_create_single, |
| }; |
| |
| |