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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2009-07-10 09:57:35 -0700
committerH. Peter Anvin <hpa@zytor.com>2009-08-26 15:41:16 -0700
commit9e36fda0b359d2a6ae039c3d7e71a04502a77898 (patch)
treea1a50780b15cf59de22ee4ee87fee6e488a310d3 /arch/x86/include/asm/iomap.h
parent9fd126bc742f74a95d2ba610247712ff05da02fe (diff)
downloadop-kernel-dev-9e36fda0b359d2a6ae039c3d7e71a04502a77898.zip
op-kernel-dev-9e36fda0b359d2a6ae039c3d7e71a04502a77898.tar.gz
x86, pat: Add PAT reserve free to io_mapping* APIs
io_mapping_* interfaces were added, mainly for graphics drivers. Make this interface go through the PAT reserve/free, instead of hardcoding WC mapping. This makes sure that there are no aliases due to unconditional WC setting. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/iomap.h')
-rw-r--r--arch/x86/include/asm/iomap.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
index 0e9fe1d..f35eb45 100644
--- a/arch/x86/include/asm/iomap.h
+++ b/arch/x86/include/asm/iomap.h
@@ -26,13 +26,16 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
-int
-is_io_mapping_possible(resource_size_t base, unsigned long size);
-
void *
iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
void
iounmap_atomic(void *kvaddr, enum km_type type);
+int
+iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
+
+void
+iomap_free(resource_size_t base, unsigned long size);
+
#endif /* _ASM_X86_IOMAP_H */
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