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| author | Keith Packard <keithp@keithp.com> | 2008-10-30 19:37:09 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-31 10:12:38 +0100 |
| commit | fd9409343521eac22b6ed51686128a643c7c976b (patch) | |
| tree | d70e3f009a29a7bbfe68b956608854db416bc2af /arch/x86/include/asm/fixmap.h | |
| parent | 721d5dfe7e516954c501d5e9d0dfab379cf4241a (diff) | |
| download | linux-fd9409343521eac22b6ed51686128a643c7c976b.tar.bz2 | |
x86: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmaps
Impact: introduce new APIs, separate kmap code from CONFIG_HIGHMEM
This takes the code used for CONFIG_HIGHMEM memory mappings except that
it's designed for dynamic IO resource mapping.
These fixmaps are available even with CONFIG_HIGHMEM turned off.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/fixmap.h')
| -rw-r--r-- | arch/x86/include/asm/fixmap.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index 8668a94f850e..23696d44a0af 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/arch/x86/include/asm/fixmap.h @@ -9,6 +9,10 @@ extern int fixmaps_set; +extern pte_t *kmap_pte; +extern pgprot_t kmap_prot; +extern pte_t *pkmap_page_table; + void __native_set_fixmap(enum fixed_addresses idx, pte_t pte); void native_set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags); |