diff options
| author |   Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 15:05:24 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-07-17 16:42:52 +1000 |
| commit | accfad7d0a85c5678eef76083972426032d64469 (patch) | |
| tree | 0c0575e8e8d17cd005ecf8b90619488bc6b2faf1 /arch/powerpc/kernel/cputable.c | |
| parent | powerpc/mm: Compile out radix related functions if RADIX_MMU is disabled (diff) | |
| download | linux-dev-accfad7d0a85c5678eef76083972426032d64469.tar.xz linux-dev-accfad7d0a85c5678eef76083972426032d64469.zip | |
powerpc/mm: Clear top 16 bits of va only on older cpus
As per ISA, we need to do this only for architecture version 2.02 and
earlier. This continued to work even for 2.07. But let's not do this for
anything after 2.02. ISA 3.0 requires these top bits to be not cleared.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index eeeacf6235a3..d81f826d1029 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -137,7 +137,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_name = "POWER4 (gp)", .cpu_features = CPU_FTRS_POWER4, .cpu_user_features = COMMON_USER_POWER4, - .mmu_features = MMU_FTRS_POWER4, + .mmu_features = MMU_FTRS_POWER4 | MMU_FTR_TLBIE_CROP_VA, .icache_bsize = 128, .dcache_bsize = 128, .num_pmcs = 8, @@ -152,7 +152,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_name = "POWER4+ (gq)", .cpu_features = CPU_FTRS_POWER4, .cpu_user_features = COMMON_USER_POWER4, - .mmu_features = MMU_FTRS_POWER4, + .mmu_features = MMU_FTRS_POWER4 | MMU_FTR_TLBIE_CROP_VA, .icache_bsize = 128, .dcache_bsize = 128, .num_pmcs = 8, |