C++ (Cpp) qxl_gem_object_create Examples

Example #1

File: qxl_gem.c Project: AshishNamdev/linux

int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
				      struct drm_file *file_priv,
				      u32 domain,
				      size_t size,
				      struct qxl_surface *surf,
				      struct qxl_bo **qobj,
				      uint32_t *handle)
{
	struct drm_gem_object *gobj;
	int r;

	BUG_ON(!qobj);
	BUG_ON(!handle);

	r = qxl_gem_object_create(qdev, size, 0,
				  domain,
				  false, false, surf,
				  &gobj);
	if (r)
		return -ENOMEM;
	r = drm_gem_handle_create(file_priv, gobj, handle);
	if (r)
		return r;
	/* drop reference from allocate - handle holds it now */
	*qobj = gem_to_qxl_bo(gobj);
	drm_gem_object_unreference_unlocked(gobj);
	return 0;
}

Example #2

File: qxl_fb.c Project: 513855417/linux

static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev,
				      const struct drm_mode_fb_cmd2 *mode_cmd,
				      struct drm_gem_object **gobj_p)
{
	struct qxl_device *qdev = qfbdev->qdev;
	struct drm_gem_object *gobj = NULL;
	struct qxl_bo *qbo = NULL;
	int ret;
	int aligned_size, size;
	int height = mode_cmd->height;
	int bpp;
	int depth;

	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &bpp, &depth);

	size = mode_cmd->pitches[0] * height;
	aligned_size = ALIGN(size, PAGE_SIZE);
	/* TODO: unallocate and reallocate surface0 for real. Hack to just
	 * have a large enough surface0 for 1024x768 Xorg 32bpp mode */
	ret = qxl_gem_object_create(qdev, aligned_size, 0,
				    QXL_GEM_DOMAIN_SURFACE,
				    false, /* is discardable */
				    false, /* is kernel (false means device) */
				    NULL,
				    &gobj);
	if (ret) {
		pr_err("failed to allocate framebuffer (%d)\n",
		       aligned_size);
		return -ENOMEM;
	}
	qbo = gem_to_qxl_bo(gobj);

	qbo->surf.width = mode_cmd->width;
	qbo->surf.height = mode_cmd->height;
	qbo->surf.stride = mode_cmd->pitches[0];
	qbo->surf.format = SPICE_SURFACE_FMT_32_xRGB;
	ret = qxl_bo_reserve(qbo, false);
	if (unlikely(ret != 0))
		goto out_unref;
	ret = qxl_bo_pin(qbo, QXL_GEM_DOMAIN_SURFACE, NULL);
	if (ret) {
		qxl_bo_unreserve(qbo);
		goto out_unref;
	}
	ret = qxl_bo_kmap(qbo, NULL);
	qxl_bo_unreserve(qbo); /* unreserve, will be mmaped */
	if (ret)
		goto out_unref;

	*gobj_p = gobj;
	return 0;
out_unref:
	qxlfb_destroy_pinned_object(gobj);
	*gobj_p = NULL;
	return ret;
}

Example #3

File: qxl_display.c Project: BozkurTR/kernel

int qxl_create_monitors_object(struct qxl_device *qdev)
{
	int ret;
	struct drm_gem_object *gobj;
	int max_allowed = qxl_num_crtc;
	int monitors_config_size = sizeof(struct qxl_monitors_config) +
		max_allowed * sizeof(struct qxl_head);

	ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
				    QXL_GEM_DOMAIN_VRAM,
				    false, false, NULL, &gobj);
	if (ret) {
		DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
		return -ENOMEM;
	}
	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);

	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
	if (ret)
		return ret;

	ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
	if (ret) {
		qxl_bo_unreserve(qdev->monitors_config_bo);
		return ret;
	}

	qxl_bo_unreserve(qdev->monitors_config_bo);

	qxl_bo_kmap(qdev->monitors_config_bo, NULL);

	qdev->monitors_config = qdev->monitors_config_bo->kptr;
	qdev->ram_header->monitors_config =
		qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);

	memset(qdev->monitors_config, 0, monitors_config_size);
	qdev->monitors_config->max_allowed = max_allowed;
	return 0;
}