/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_GENERIC_VIDEO_H_#define __ASM_GENERIC_VIDEO_H_ /* * Only include this header file from your architecture's <asm/fb.h>. */ #include <linux/io.h>#include <linux/mm_types.h>#include <linux/pgtable.h>#include <linux/types.h> struct device; #ifndef pgprot_framebuffer#define pgprot_framebuffer pgprot_framebufferstatic inline pgprot_t pgprot_framebuffer(pgprot_t prot,					  unsigned long vm_start, unsigned long vm_end,					  unsigned long offset){	return pgprot_writecombine(prot);}#endif #ifndef video_is_primary_device#define video_is_primary_device video_is_primary_devicestatic inline bool video_is_primary_device(struct device *dev){	return false;}#endif /* * I/O helpers for the framebuffer. Prefer these functions over their * regular counterparts. The regular I/O functions provide in-order * access and swap bytes to/from little-endian ordering. Neither is * required for framebuffers. Instead, the helpers read and write * raw framebuffer data. Independent operations can be reordered for * improved performance. */ #ifndef fb_readbstatic inline u8 fb_readb(const volatile void __iomem *addr){	return __raw_readb(addr);}#define fb_readb fb_readb#endif #ifndef fb_readwstatic inline u16 fb_readw(const volatile void __iomem *addr){	return __raw_readw(addr);}#define fb_readw fb_readw#endif #ifndef fb_readlstatic inline u32 fb_readl(const volatile void __iomem *addr){	return __raw_readl(addr);}#define fb_readl fb_readl#endif #ifndef fb_readq#if defined(__raw_readq)static inline u64 fb_readq(const volatile void __iomem *addr){	return __raw_readq(addr);}#define fb_readq fb_readq#endif#endif #ifndef fb_writebstatic inline void fb_writeb(u8 b, volatile void __iomem *addr){	__raw_writeb(b, addr);}#define fb_writeb fb_writeb#endif #ifndef fb_writewstatic inline void fb_writew(u16 b, volatile void __iomem *addr){	__raw_writew(b, addr);}#define fb_writew fb_writew#endif #ifndef fb_writelstatic inline void fb_writel(u32 b, volatile void __iomem *addr){	__raw_writel(b, addr);}#define fb_writel fb_writel#endif #ifndef fb_writeq#if defined(__raw_writeq)static inline void fb_writeq(u64 b, volatile void __iomem *addr){	__raw_writeq(b, addr);}#define fb_writeq fb_writeq#endif#endif #ifndef fb_memcpy_fromiostatic inline void fb_memcpy_fromio(void *to, const volatile void __iomem *from, size_t n){	memcpy_fromio(to, from, n);}#define fb_memcpy_fromio fb_memcpy_fromio#endif #ifndef fb_memcpy_toiostatic inline void fb_memcpy_toio(volatile void __iomem *to, const void *from, size_t n){	memcpy_toio(to, from, n);}#define fb_memcpy_toio fb_memcpy_toio#endif #ifndef fb_memsetstatic inline void fb_memset_io(volatile void __iomem *addr, int c, size_t n){	memset_io(addr, c, n);}#define fb_memset fb_memset_io#endif #endif /* __ASM_GENERIC_VIDEO_H_ */