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authorKumar Gala <galak@kernel.crashing.org>2008-04-23 23:05:20 +1000
committerPaul Mackerras <paulus@samba.org>2008-04-24 20:58:02 +1000
commit2c419bdeca1d958bb02228b5141695f312d8c633 (patch)
tree4553b9bf7b75025c5bbeb25528d97f5338673b0b /arch/powerpc/mm/init_32.c
parent2fd53e02be9a73cc49d69e0ff8860daa7b5bf8ab (diff)
downloadop-kernel-dev-2c419bdeca1d958bb02228b5141695f312d8c633.zip
op-kernel-dev-2c419bdeca1d958bb02228b5141695f312d8c633.tar.gz
[POWERPC] Port fixmap from x86 and use for kmap_atomic
The fixmap code from x86 allows us to have compile time virtual addresses that we change the physical addresses of at run time. This is useful for applications like kmap_atomic, PCI config that is done via direct memory map, kexec/kdump. We got ride of CONFIG_HIGHMEM_START as we can now determine a more optimal location for PKMAP_BASE based on where the fixmap addresses start and working back from there. Additionally, the kmap code in asm-powerpc/highmem.h always had debug enabled. Moved to using CONFIG_DEBUG_HIGHMEM to determine if we should have the extra debug checking. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/init_32.c')
-rw-r--r--arch/powerpc/mm/init_32.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 578750e..1952b4d 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -71,14 +71,6 @@ unsigned long agp_special_page;
EXPORT_SYMBOL(agp_special_page);
#endif
-#ifdef CONFIG_HIGHMEM
-pte_t *kmap_pte;
-pgprot_t kmap_prot;
-
-EXPORT_SYMBOL(kmap_prot);
-EXPORT_SYMBOL(kmap_pte);
-#endif
-
void MMU_init(void);
/* XXX should be in current.h -- paulus */
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