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authorDavid S. Miller <davem@davemloft.net>2005-04-21 21:41:33 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2005-04-21 21:41:33 -0700
commitd7be828e03969ea7f922f299acb8daa0d8ce7006 (patch)
tree4c664d8a15dc9dc935cc6e181e727cfdc5d60302 /include/asm-sparc64
parent1cff94c6fecdc54d6f022ae5a22888f8272804a1 (diff)
[SPARC64]: Provide a pgprot_noncached() implementation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/pgtable.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index af9bf175a22..ae2cd5b09a7 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -416,6 +416,11 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn,
unsigned long size, pgprot_t prot);
+/* Clear virtual and physical cachability, set side-effect bit. */
+#define pgprot_noncached(prot) \
+ (__pgprot((pgprot_val(prot) & ~(_PAGE_CP | _PAGE_CV)) | \
+ _PAGE_E))
+
/*
* For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
* its high 4 bits. These macros/functions put it there or get it from there.