struct drm_framebuffer * exynos_drm_framebuffer_init(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object *obj) { struct exynos_drm_fb *exynos_fb; struct exynos_drm_gem_obj *exynos_gem_obj; int ret; exynos_gem_obj = to_exynos_gem_obj(obj); ret = check_fb_gem_memory_type(dev, exynos_gem_obj); if (ret < 0) { DRM_ERROR("cannot use this gem memory type for fb.\n"); return ERR_PTR(-EINVAL); } exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL); if (!exynos_fb) return ERR_PTR(-ENOMEM); drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd); exynos_fb->exynos_gem_obj[0] = exynos_gem_obj; ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs); if (ret) { DRM_ERROR("failed to initialize framebuffer\n"); return ERR_PTR(ret); } return &exynos_fb->fb; }
struct drm_framebuffer * exynos_drm_framebuffer_init(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd, struct exynos_drm_gem **exynos_gem, int count) { struct exynos_drm_fb *exynos_fb; int i; int ret; exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL); if (!exynos_fb) return ERR_PTR(-ENOMEM); for (i = 0; i < count; i++) { ret = check_fb_gem_memory_type(dev, exynos_gem[i]); if (ret < 0) goto err; exynos_fb->exynos_gem[i] = exynos_gem[i]; exynos_fb->dma_addr[i] = exynos_gem[i]->dma_addr + mode_cmd->offsets[i]; } drm_helper_mode_fill_fb_struct(dev, &exynos_fb->fb, mode_cmd); ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs); if (ret < 0) { DRM_ERROR("failed to initialize framebuffer\n"); goto err; } return &exynos_fb->fb; err: kfree(exynos_fb); return ERR_PTR(ret); }
static struct drm_framebuffer * exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_gem_object *obj; struct exynos_drm_gem_obj *exynos_gem_obj; struct exynos_drm_fb *exynos_fb; int i, ret; exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL); if (!exynos_fb) return ERR_PTR(-ENOMEM); obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); ret = -ENOENT; goto err_free; } drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd); exynos_fb->exynos_gem_obj[0] = to_exynos_gem_obj(obj); exynos_fb->buf_cnt = exynos_drm_format_num_buffers(mode_cmd); DRM_DEBUG_KMS("buf_cnt = %d\n", exynos_fb->buf_cnt); for (i = 1; i < exynos_fb->buf_cnt; i++) { obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); ret = -ENOENT; exynos_fb->buf_cnt = i; goto err_unreference; } exynos_gem_obj = to_exynos_gem_obj(obj); exynos_fb->exynos_gem_obj[i] = exynos_gem_obj; ret = check_fb_gem_memory_type(dev, exynos_gem_obj); if (ret < 0) { DRM_ERROR("cannot use this gem memory type for fb.\n"); goto err_unreference; } } ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs); if (ret) { DRM_ERROR("failed to init framebuffer.\n"); goto err_unreference; } return &exynos_fb->fb; err_unreference: for (i = 0; i < exynos_fb->buf_cnt; i++) { struct drm_gem_object *obj; obj = &exynos_fb->exynos_gem_obj[i]->base; if (obj) drm_gem_object_unreference_unlocked(obj); } err_free: kfree(exynos_fb); return ERR_PTR(ret); }