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| author | David Gibson <david@gibson.dropbear.id.au> | 2007-04-24 13:09:12 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-04-24 22:08:56 +1000 |
| commit | 621023072524fc0155ed16490255e1ea3aa11585 (patch) | |
| tree | 77fec16321fe72ef75532c4f07ffee004b57bbfe /arch/powerpc/mm/mmu_decl.h | |
| parent | 687304014f7ca8e2fbb3feaefef356b4a0da65ad (diff) | |
| download | kernel_samsung_smdk4412-621023072524fc0155ed16490255e1ea3aa11585.zip kernel_samsung_smdk4412-621023072524fc0155ed16490255e1ea3aa11585.tar.gz kernel_samsung_smdk4412-621023072524fc0155ed16490255e1ea3aa11585.tar.bz2 | |
[POWERPC] Cleanup and fix breakage in tlbflush.h
BenH's commit a741e67969577163a4cfc78d7fd2753219087ef1 in powerpc.git,
although (AFAICT) only intended to affect ppc64, also has side-effects
which break 44x. I think 40x, 8xx and Freescale Book E are also
affected, though I haven't tested them.
The problem lies in unconditionally removing flush_tlb_pending() from
the versions of flush_tlb_mm(), flush_tlb_range() and
flush_tlb_kernel_range() used on ppc64 - which are also used the
embedded platforms mentioned above.
The patch below cleans up the convoluted #ifdef logic in tlbflush.h,
in the process restoring the necessary flushes for the software TLB
platforms. There are three sets of definitions for the flushing
hooks: the software TLB versions (revised to avoid using names which
appear to related to TLB batching), the 32-bit hash based versions
(external functions) amd the 64-bit hash based versions (which
implement batching).
It also moves the declaration of update_mmu_cache() to always be in
tlbflush.h (previously it was in tlbflush.h except for PPC64, where it
was in pgtable.h).
Booted on Ebony (440GP) and compiled for 64-bit and 32-bit
multiplatform.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/mmu_decl.h')
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index ee55e0b..9c4538b 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -19,6 +19,7 @@ * 2 of the License, or (at your option) any later version. * */ +#include <linux/mm.h> #include <asm/tlbflush.h> #include <asm/mmu.h> |