Esempio n. 1
0
static struct drm_framebuffer *
bochs_user_framebuffer_create(struct drm_device *dev,
			      struct drm_file *filp,
			      const struct drm_mode_fb_cmd2 *mode_cmd)
{
	struct drm_gem_object *obj;
	struct bochs_framebuffer *bochs_fb;
	int ret;

	DRM_DEBUG_DRIVER("%dx%d, format %c%c%c%c\n",
	       mode_cmd->width, mode_cmd->height,
	       (mode_cmd->pixel_format)       & 0xff,
	       (mode_cmd->pixel_format >> 8)  & 0xff,
	       (mode_cmd->pixel_format >> 16) & 0xff,
	       (mode_cmd->pixel_format >> 24) & 0xff);

	if (mode_cmd->pixel_format != DRM_FORMAT_XRGB8888)
		return ERR_PTR(-ENOENT);

	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
	if (obj == NULL)
		return ERR_PTR(-ENOENT);

	bochs_fb = kzalloc(sizeof(*bochs_fb), GFP_KERNEL);
	if (!bochs_fb) {
		drm_gem_object_unreference_unlocked(obj);
		return ERR_PTR(-ENOMEM);
	}

	ret = bochs_framebuffer_init(dev, bochs_fb, mode_cmd, obj);
	if (ret) {
		drm_gem_object_unreference_unlocked(obj);
		kfree(bochs_fb);
		return ERR_PTR(ret);
	}
	return &bochs_fb->base;
}
Esempio n. 2
0
static int bochsfb_create(struct drm_fb_helper *helper,
			  struct drm_fb_helper_surface_size *sizes)
{
	struct bochs_device *bochs =
		container_of(helper, struct bochs_device, fb.helper);
	struct fb_info *info;
	struct drm_framebuffer *fb;
	struct drm_mode_fb_cmd2 mode_cmd;
	struct drm_gem_object *gobj = NULL;
	struct bochs_bo *bo = NULL;
	int size, ret;

	if (sizes->surface_bpp != 32)
		return -EINVAL;

	mode_cmd.width = sizes->surface_width;
	mode_cmd.height = sizes->surface_height;
	mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
							  sizes->surface_depth);
	size = mode_cmd.pitches[0] * mode_cmd.height;

	/* alloc, pin & map bo */
	ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
	if (ret) {
		DRM_ERROR("failed to create fbcon backing object %d\n", ret);
		return ret;
	}

	bo = gem_to_bochs_bo(gobj);

	ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
	if (ret)
		return ret;

	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
	if (ret) {
		DRM_ERROR("failed to pin fbcon\n");
		ttm_bo_unreserve(&bo->bo);
		return ret;
	}

	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
			  &bo->kmap);
	if (ret) {
		DRM_ERROR("failed to kmap fbcon\n");
		ttm_bo_unreserve(&bo->bo);
		return ret;
	}

	ttm_bo_unreserve(&bo->bo);

	/* init fb device */
	info = drm_fb_helper_alloc_fbi(helper);
	if (IS_ERR(info))
		return PTR_ERR(info);

	info->par = &bochs->fb.helper;

	ret = bochs_framebuffer_init(bochs->dev, &bochs->fb.gfb, &mode_cmd, gobj);
	if (ret) {
		drm_fb_helper_release_fbi(helper);
		return ret;
	}

	bochs->fb.size = size;

	/* setup helper */
	fb = &bochs->fb.gfb.base;
	bochs->fb.helper.fb = fb;

	strcpy(info->fix.id, "bochsdrmfb");

	info->flags = FBINFO_DEFAULT;
	info->fbops = &bochsfb_ops;

	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
	drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
			       sizes->fb_height);

	info->screen_base = bo->kmap.virtual;
	info->screen_size = size;

	drm_vma_offset_remove(&bo->bo.bdev->vma_manager, &bo->bo.vma_node);
	info->fix.smem_start = 0;
	info->fix.smem_len = size;

	return 0;
}
Esempio n. 3
0
static int bochsfb_create(struct drm_fb_helper *helper,
			  struct drm_fb_helper_surface_size *sizes)
{
	struct bochs_device *bochs =
		container_of(helper, struct bochs_device, fb.helper);
	struct drm_device *dev = bochs->dev;
	struct fb_info *info;
	struct drm_framebuffer *fb;
	struct drm_mode_fb_cmd2 mode_cmd;
	struct device *device = &dev->pdev->dev;
	struct drm_gem_object *gobj = NULL;
	struct bochs_bo *bo = NULL;
	int size, ret;

	if (sizes->surface_bpp != 32)
		return -EINVAL;

	mode_cmd.width = sizes->surface_width;
	mode_cmd.height = sizes->surface_height;
	mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
							  sizes->surface_depth);
	size = mode_cmd.pitches[0] * mode_cmd.height;

	/* alloc, pin & map bo */
	ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
	if (ret) {
		DRM_ERROR("failed to create fbcon backing object %d\n", ret);
		return ret;
	}

	bo = gem_to_bochs_bo(gobj);

	ret = ttm_bo_reserve(&bo->bo, true, false, false, 0);
	if (ret)
		return ret;

	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
	if (ret) {
		DRM_ERROR("failed to pin fbcon\n");
		ttm_bo_unreserve(&bo->bo);
		return ret;
	}

	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
			  &bo->kmap);
	if (ret) {
		DRM_ERROR("failed to kmap fbcon\n");
		ttm_bo_unreserve(&bo->bo);
		return ret;
	}

	ttm_bo_unreserve(&bo->bo);

	/* init fb device */
	info = framebuffer_alloc(0, device);
	if (info == NULL)
		return -ENOMEM;

	info->par = &bochs->fb.helper;

	ret = bochs_framebuffer_init(bochs->dev, &bochs->fb.gfb, &mode_cmd, gobj);
	if (ret)
		return ret;

	bochs->fb.size = size;

	/* setup helper */
	fb = &bochs->fb.gfb.base;
	bochs->fb.helper.fb = fb;
	bochs->fb.helper.fbdev = info;

	strcpy(info->fix.id, "bochsdrmfb");

	info->flags = FBINFO_DEFAULT;
	info->fbops = &bochsfb_ops;

	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
	drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
			       sizes->fb_height);

	info->screen_base = bo->kmap.virtual;
	info->screen_size = size;

#if 0
	/* FIXME: get this right for mmap(/dev/fb0) */
	info->fix.smem_start = bochs_bo_mmap_offset(bo);
	info->fix.smem_len = size;
#endif

	ret = fb_alloc_cmap(&info->cmap, 256, 0);
	if (ret) {
		DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
		return -ENOMEM;
	}

	return 0;
}