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Scott Wood f67f4ef5fc powerpc/book3e-64: use a separate TLB handler when linear map is bolted 
On MMUs such as FSL where we can guarantee the entire linear mapping is
bolted, we don't need to worry about linear TLB misses.  If on top of
that we do a full table walk, we get rid of all recursive TLB faults, and
can dispense with some state saving.  This gains a few percent on
TLB-miss-heavy workloads, and around 50% on a benchmark that had a high
rate of virtual page table faults under the normal handler.

While touching the EX_TLB layout, remove EX_TLB_MMUCR0, EX_TLB_SRR0, and
EX_TLB_SRR1 as they're not used.

[BenH: Fixed build with 64K pages (wsp config)]

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2011-06-29 17:47:48 +10:00
..
40x_mmu.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
44x_mmu.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
Makefile powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips 2010-10-14 00:55:14 -05:00
dma-noncoherent.c powerpc: Implement dma_mmap_coherent() 2011-03-30 10:44:00 +11:00
fault.c powerpc: Check end of stack canary at oops time 2010-09-02 14:07:30 +10:00
fsl_booke_mmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
gup.c thp: alter compound get_page/put_page 2011-01-13 17:32:39 -08:00
hash_low_32.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
hash_low_64.S powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
hash_native_64.c powerpc: Use new CPU feature bit to select 2.06 tlbie 2011-05-04 15:19:26 +10:00
hash_utils_64.c powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
highmem.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugetlbpage-hash64.c powerpc/mm: Add some debug output when hash insertion fails 2010-07-23 12:56:56 +10:00
hugetlbpage.c powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
init_32.c powerpc: Fix memory limits when starting at a non-zero address 2011-03-02 16:56:15 +11:00
init_64.c Merge commit 'v2.6.36-rc3' into x86/memblock 2010-08-31 09:45:46 +02:00
mem.c Fix common misspellings 2011-03-31 11:26:23 -03:00
mmap_64.c powerpc: Use helpers for rlimits 2010-01-15 13:20:08 +11:00
mmu_context_hash32.c PPC: Split context init/destroy functions 2010-05-17 12:18:20 +03:00
mmu_context_hash64.c powerpc: Fix compile with icwsx support 2011-05-06 13:18:34 +10:00
mmu_context_nohash.c powerpc: Add TLB size detection for TYPE_3E MMUs 2011-04-27 13:02:10 +10:00
mmu_decl.h powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips 2010-10-14 00:55:14 -05:00
numa.c powerpc: Convert old cpumask API into new one 2011-05-04 15:22:59 +10:00
pgtable.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
pgtable_32.c powerpc: Remove ioremap_flags 2011-05-19 14:30:43 +10:00
pgtable_64.c powerpc: Remove ioremap_flags 2011-05-19 14:30:43 +10:00
ppc_mmu_32.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
slb.c powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
slb_low.S powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
slice.c
…
stab.c powerpc: Free up some CPU feature bits by moving out MMU-related features 2011-04-27 14:18:52 +10:00
subpage-prot.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
tlb_hash32.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
tlb_hash64.c mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
tlb_low_64e.S powerpc/book3e-64: use a separate TLB handler when linear map is bolted 2011-06-29 17:47:48 +10:00
tlb_nohash.c powerpc/book3e-64: use a separate TLB handler when linear map is bolted 2011-06-29 17:47:48 +10:00
tlb_nohash_low.S powerpc/476: Workaround for PLB6 hang 2011-02-02 06:59:02 -05:00