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authorKeith Packard <keithp@keithp.com>2008-10-30 19:37:09 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-31 10:12:38 +0100
commitfd9409343521eac22b6ed51686128a643c7c976b (patch)
treed70e3f009a29a7bbfe68b956608854db416bc2af /arch/x86/include/asm/highmem.h
parent721d5dfe7e516954c501d5e9d0dfab379cf4241a (diff)
downloadop-kernel-dev-fd9409343521eac22b6ed51686128a643c7c976b.zip
op-kernel-dev-fd9409343521eac22b6ed51686128a643c7c976b.tar.gz
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/highmem.h')
-rw-r--r--arch/x86/include/asm/highmem.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index a3b3b7c..bf9276b 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -25,14 +25,11 @@
#include <asm/kmap_types.h>
#include <asm/tlbflush.h>
#include <asm/paravirt.h>
+#include <asm/fixmap.h>
/* declarations for highmem.c */
extern unsigned long highstart_pfn, highend_pfn;
-extern pte_t *kmap_pte;
-extern pgprot_t kmap_prot;
-extern pte_t *pkmap_page_table;
-
/*
* Right now we initialize only a single pte table. It can be extended
* easily, subsequent pte tables have to be allocated in one physical
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