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TOMOYO Linux Cross Reference
Linux/include/drm/drm_aperture.h

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  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                                                  bool primary, 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  * @primary: also kick vga16fb if present
 24  * @req_driver: requesting DRM driver
 25  *
 26  * This function removes all graphics device drivers. Use this function on systems
 27  * that can have their framebuffer located anywhere in memory.
 28  *
 29  * Returns:
 30  * 0 on success, or a negative errno code otherwise
 31  */
 32 static inline int
 33 drm_aperture_remove_framebuffers(bool primary, const struct drm_driver *req_driver)
 34 {
 35         return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1, primary,
 36                                                             req_driver);
 37 }
 38 
 39 #endif
 40 

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