cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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drm_aperture.h (1160B)

      1/* SPDX-License-Identifier: MIT */
      2
      3#ifndef _DRM_APERTURE_H_
      4#define _DRM_APERTURE_H_
      5
      6#include <linux/types.h>
      7
      8struct drm_device;
      9struct drm_driver;
     10struct pci_dev;
     11
     12int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base,
     13					resource_size_t size);
     14
     15int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size,
     16						 bool primary, const struct drm_driver *req_driver);
     17
     18int 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 */
     32static inline int
     33drm_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