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1/* SPDX-License-Identifier: MIT */2 3#ifndef _LINUX_APERTURE_H_4#define _LINUX_APERTURE_H_5 6#include <linux/types.h>7 8struct pci_dev;9struct platform_device;10 11#if defined(CONFIG_APERTURE_HELPERS)12int devm_aperture_acquire_for_platform_device(struct platform_device *pdev,13 resource_size_t base,14 resource_size_t size);15 16int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size,17 const char *name);18 19int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev);20 21int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name);22#else23static inline int devm_aperture_acquire_for_platform_device(struct platform_device *pdev,24 resource_size_t base,25 resource_size_t size)26{27 return 0;28}29 30static inline int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size,31 const char *name)32{33 return 0;34}35 36static inline int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev)37{38 return 0;39}40 41static inline int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name)42{43 return 0;44}45#endif46 47/**48 * aperture_remove_all_conflicting_devices - remove all existing framebuffers49 * @name: a descriptive name of the requesting driver50 *51 * This function removes all graphics device drivers. Use this function on systems52 * that can have their framebuffer located anywhere in memory.53 *54 * Returns:55 * 0 on success, or a negative errno code otherwise56 */57static inline int aperture_remove_all_conflicting_devices(const char *name)58{59 return aperture_remove_conflicting_devices(0, (resource_size_t)-1, name);60}61 62#endif63