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kernel add
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#ifndef _ASM_X86_FB_H
#define _ASM_X86_FB_H
#include <linux/fb.h>
#include <linux/fs.h>
#include <asm/page.h>
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
unsigned long off)
{
unsigned long prot;
prot = pgprot_val(vma->vm_page_prot) & ~_PAGE_CACHE_MASK;
if (boot_cpu_data.x86 > 3)
pgprot_val(vma->vm_page_prot) =
prot | cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS);
}
extern int fb_is_primary_device(struct fb_info *info);
#endif /* _ASM_X86_FB_H */
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