C++ (Cpp) check_fb_gem_memory_type примеры использования

Пример #1

Файл: exynos_drm_fb.c Проект: SeKwonLee/Hongik_NECSST_Tizen2.2_kernel

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;
}

Пример #2

Файл: exynos_drm_fb.c Проект: MaxKellermann/linux

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);
}

Пример #3

Файл: exynos_drm_fb.c Проект: SeKwonLee/Hongik_NECSST_Tizen2.2_kernel

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);
}