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[POWERPC] spufs: map mmio space as guarded into user space

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This fixes a bug where we don't properly map SPE MMIO space as guarded,
causing various test cases to fail, probably due to write combining and other
niceties caused by the lack of the G bit.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2006-06-23 20:57:47 +02:00 committed by Paul Mackerras
parent 6b7290be0c
commit 23cc770107
1 changed files with 5 additions and 5 deletions
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10
arch/powerpc/platforms/cell/spufs/file.c
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@ -204,7 +204,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
| _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_cntl_mmap_vmops;
return 0;
@ -675,7 +675,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
| _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_signal1_mmap_vmops;
return 0;
@ -762,7 +762,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
/* FIXME: */
vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
| _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_signal2_mmap_vmops;
return 0;
@ -850,7 +850,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
| _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_mss_mmap_vmops;
return 0;
@ -899,7 +899,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_RESERVED;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
| _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_mfc_mmap_vmops;
return 0;