static struct drm_framebuffer *
hibmc_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 hibmc_framebuffer *hibmc_fb;
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);
obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
if (!obj)
return ERR_PTR(-ENOENT);
hibmc_fb = hibmc_framebuffer_init(dev, mode_cmd, obj);
if (IS_ERR(hibmc_fb)) {
drm_gem_object_unreference_unlocked(obj);
return ERR_PTR((long)hibmc_fb);
}
return &hibmc_fb->fb;
}
static int hibmc_drm_fb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct hibmc_fbdev *hi_fbdev =
container_of(helper, struct hibmc_fbdev, helper);
struct hibmc_drm_private *priv = helper->dev->dev_private;
struct fb_info *info;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_gem_object *gobj = NULL;
int ret = 0;
int ret1;
size_t size;
unsigned int bytes_per_pixel;
struct hibmc_bo *bo = NULL;
DRM_DEBUG_DRIVER("surface width(%d), height(%d) and bpp(%d)\n",
sizes->surface_width, sizes->surface_height,
sizes->surface_bpp);
bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * bytes_per_pixel;
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = PAGE_ALIGN(mode_cmd.pitches[0] * mode_cmd.height);
ret = hibmcfb_create_object(priv, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon backing object: %d\n", ret);
return -ENOMEM;
}
bo = gem_to_hibmc_bo(gobj);
ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
if (ret) {
DRM_ERROR("failed to reserve ttm_bo: %d\n", ret);
goto out_unref_gem;
}
ret = hibmc_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
if (ret) {
DRM_ERROR("failed to pin fbcon: %d\n", ret);
goto out_unreserve_ttm_bo;
}
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fbcon: %d\n", ret);
goto out_unpin_bo;
}
ttm_bo_unreserve(&bo->bo);
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
ret = PTR_ERR(info);
DRM_ERROR("failed to allocate fbi: %d\n", ret);
goto out_release_fbi;
}
info->par = hi_fbdev;
hi_fbdev->fb = hibmc_framebuffer_init(priv->dev, &mode_cmd, gobj);
if (IS_ERR(hi_fbdev->fb)) {
ret = PTR_ERR(hi_fbdev->fb);
hi_fbdev->fb = NULL;
DRM_ERROR("failed to initialize framebuffer: %d\n", ret);
goto out_release_fbi;
}
priv->fbdev->size = size;
hi_fbdev->helper.fb = &hi_fbdev->fb->fb;
strcpy(info->fix.id, "hibmcdrmfb");
info->fbops = &hibmc_drm_fb_ops;
drm_fb_helper_fill_fix(info, hi_fbdev->fb->fb.pitches[0],
hi_fbdev->fb->fb.format->depth);
drm_fb_helper_fill_var(info, &priv->fbdev->helper, sizes->fb_width,
sizes->fb_height);
info->screen_base = bo->kmap.virtual;
info->screen_size = size;
info->fix.smem_start = bo->bo.mem.bus.offset + bo->bo.mem.bus.base;
info->fix.smem_len = size;
return 0;
out_release_fbi:
ret1 = ttm_bo_reserve(&bo->bo, true, false, NULL);
if (ret1) {
DRM_ERROR("failed to rsv ttm_bo when release fbi: %d\n", ret1);
goto out_unref_gem;
}
ttm_bo_kunmap(&bo->kmap);
out_unpin_bo:
hibmc_bo_unpin(bo);
out_unreserve_ttm_bo:
ttm_bo_unreserve(&bo->bo);
out_unref_gem:
drm_gem_object_put_unlocked(gobj);
return ret;
}