1 /* SPDX-License-Identifier: MIT */ 2 3 #ifndef _DRM_APERTURE_H_ 4 #define _DRM_APERTURE_H_ 5 6 #include <linux/types.h> 7 8 struct drm_device; 9 struct drm_driver; 10 struct pci_dev; 11 12 int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base, 13 resource_size_t size); 14 15 int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size, 16 const struct drm_driver *req_driver); 17 18 int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, 19 const struct drm_driver *req_driver); 20 21 /** 22 * drm_aperture_remove_framebuffers - remove all existing framebuffers 23 * @req_driver: requesting DRM driver 24 * 25 * This function removes all graphics device drivers. Use this function on systems 26 * that can have their framebuffer located anywhere in memory. 27 * 28 * Returns: 29 * 0 on success, or a negative errno code otherwise 30 */ 31 static inline int drm_aperture_remove_framebuffers(const struct drm_driver * req_driver)32drm_aperture_remove_framebuffers(const struct drm_driver *req_driver) 33 { 34 return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1, 35 req_driver); 36 } 37 38 #endif 39