From 14778d9072e53d2171f66ffd9657daff41acfaed Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 21 Mar 2006 02:29:39 -0800 Subject: [SPARC]: Respect vm_page_prot in io_remap_page_range(). Make sure the callers do a pgprot_noncached() on vma->vm_page_prot. Pointed out by Hugh Dickens. Signed-off-by: David S. Miller --- drivers/video/fbmem.c | 8 +------- drivers/video/sbuslib.c | 2 ++ 2 files changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 996c7b5..07d882b 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1169,11 +1169,6 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) vma->vm_pgoff = off >> PAGE_SHIFT; /* This is an IO map - tell maydump to skip this VMA */ vma->vm_flags |= VM_IO | VM_RESERVED; -#if defined(__sparc_v9__) - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, vma->vm_page_prot)) - return -EAGAIN; -#else #if defined(__mc68000__) #if defined(CONFIG_SUN3) pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; @@ -1195,7 +1190,7 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) #elif defined(__i386__) || defined(__x86_64__) if (boot_cpu_data.x86 > 3) pgprot_val(vma->vm_page_prot) |= _PAGE_PCD; -#elif defined(__mips__) +#elif defined(__mips__) || defined(__sparc_v9__) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); #elif defined(__hppa__) pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE; @@ -1212,7 +1207,6 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) return -EAGAIN; -#endif /* !__sparc_v9__ */ return 0; #endif /* !sparc32 */ } diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c index a4d7cc5..34ef859 100644 --- a/drivers/video/sbuslib.c +++ b/drivers/video/sbuslib.c @@ -58,6 +58,8 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map, /* To stop the swapper from even considering these pages */ vma->vm_flags |= (VM_IO | VM_RESERVED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + /* Each page, see which map applies */ for (page = 0; page < size; ){ map_size = 0; -- cgit v1.1