1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_FB_H_ 3#define _ASM_FB_H_ 4 5#include <linux/compiler.h> 6#include <linux/efi.h> 7#include <linux/string.h> 8 9#include <asm/page.h> 10 11struct file; 12 13static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, 14 unsigned long off) 15{ 16 if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) 17 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); 18 else 19 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 20} 21#define fb_pgprotect fb_pgprotect 22 23static inline void fb_memcpy_fromio(void *to, const volatile void __iomem *from, size_t n) 24{ 25 memcpy(to, (void __force *)from, n); 26} 27#define fb_memcpy_fromio fb_memcpy_fromio 28 29static inline void fb_memcpy_toio(volatile void __iomem *to, const void *from, size_t n) 30{ 31 memcpy((void __force *)to, from, n); 32} 33#define fb_memcpy_toio fb_memcpy_toio 34 35static inline void fb_memset_io(volatile void __iomem *addr, int c, size_t n) 36{ 37 memset((void __force *)addr, c, n); 38} 39#define fb_memset fb_memset_io 40 41#include <asm-generic/fb.h> 42 43#endif /* _ASM_FB_H_ */ 44