137 lines
2.9 KiB
C
137 lines
2.9 KiB
C
/* 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_framebuffer
|
|
static 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_device
|
|
static 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_readb
|
|
static inline u8 fb_readb(const volatile void __iomem *addr)
|
|
{
|
|
return __raw_readb(addr);
|
|
}
|
|
#define fb_readb fb_readb
|
|
#endif
|
|
|
|
#ifndef fb_readw
|
|
static inline u16 fb_readw(const volatile void __iomem *addr)
|
|
{
|
|
return __raw_readw(addr);
|
|
}
|
|
#define fb_readw fb_readw
|
|
#endif
|
|
|
|
#ifndef fb_readl
|
|
static 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_writeb
|
|
static inline void fb_writeb(u8 b, volatile void __iomem *addr)
|
|
{
|
|
__raw_writeb(b, addr);
|
|
}
|
|
#define fb_writeb fb_writeb
|
|
#endif
|
|
|
|
#ifndef fb_writew
|
|
static inline void fb_writew(u16 b, volatile void __iomem *addr)
|
|
{
|
|
__raw_writew(b, addr);
|
|
}
|
|
#define fb_writew fb_writew
|
|
#endif
|
|
|
|
#ifndef fb_writel
|
|
static 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_fromio
|
|
static 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_toio
|
|
static 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_memset
|
|
static 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_ */
|