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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_FB_H_
#define _ASM_FB_H_
#include <linux/compiler.h>
#include <linux/efi.h>
#include <linux/string.h>
#include <asm/page.h>
struct file;
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
unsigned long off)
{
if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
}
#define fb_pgprotect fb_pgprotect
static inline void fb_memcpy_fromfb(void *to, const volatile void __iomem *from, size_t n)
{
memcpy(to, (void __force *)from, n);
}
#define fb_memcpy_fromfb fb_memcpy_fromfb
static inline void fb_memcpy_tofb(volatile void __iomem *to, const void *from, size_t n)
{
memcpy((void __force *)to, from, n);
}
#define fb_memcpy_tofb fb_memcpy_tofb
static inline void fb_memset(volatile void __iomem *addr, int c, size_t n)
{
memset((void __force *)addr, c, n);
}
#define fb_memset fb_memset
#include <asm-generic/fb.h>
#endif /* _ASM_FB_H_ */
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