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