| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | |
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| 3 | #ifndef _LINUX_APERTURE_H_ |
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| 4 | #define _LINUX_APERTURE_H_ |
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| 5 | |
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| 6 | #include <linux/types.h> |
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| 7 | |
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| 8 | struct pci_dev; |
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| 9 | struct platform_device; |
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| 10 | |
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| 11 | #if defined(CONFIG_APERTURE_HELPERS) |
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| 12 | int devm_aperture_acquire_for_platform_device(struct platform_device *pdev, |
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| 13 | resource_size_t base, |
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| 14 | resource_size_t size); |
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| 15 | |
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| 16 | int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size, |
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| 17 | const char *name); |
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| 18 | |
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| 19 | int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev); |
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| 20 | |
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| 21 | int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name); |
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| 22 | #else |
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| 23 | static inline int devm_aperture_acquire_for_platform_device(struct platform_device *pdev, |
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| 24 | resource_size_t base, |
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| 25 | resource_size_t size) |
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| 26 | { |
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| 27 | return 0; |
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| 28 | } |
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| 29 | |
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| 30 | static inline int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size, |
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| 31 | const char *name) |
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| 32 | { |
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| 33 | return 0; |
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| 34 | } |
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| 35 | |
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| 36 | static inline int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev) |
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| 37 | { |
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| 38 | return 0; |
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| 39 | } |
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| 40 | |
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| 41 | static inline int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name) |
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| 42 | { |
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| 43 | return 0; |
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| 44 | } |
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| 45 | #endif |
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| 46 | |
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| 47 | /** |
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| 48 | * aperture_remove_all_conflicting_devices - remove all existing framebuffers |
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| 49 | * @name: a descriptive name of the requesting driver |
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| 50 | * |
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| 51 | * This function removes all graphics device drivers. Use this function on systems |
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| 52 | * that can have their framebuffer located anywhere in memory. |
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| 53 | * |
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| 54 | * Returns: |
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| 55 | * 0 on success, or a negative errno code otherwise |
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| 56 | */ |
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| 57 | static inline int aperture_remove_all_conflicting_devices(const char *name) |
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| 58 | { |
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| 59 | return aperture_remove_conflicting_devices(base: 0, size: (resource_size_t)-1, name); |
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| 60 | } |
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| 61 | |
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| 62 | #endif |
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| 63 | |
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