diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2014-03-14 16:00:28 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-03-24 09:48:24 +1100 |
| commit | 68f2f0d431d9ea4fbd373cd31e828b0ceaefea30 (patch) | |
| tree | 545e3db0f6fb09ab21f9a37ef2c79ea26f3c26e9 /arch/powerpc/kernel/cputable.c | |
| parent | 5f6d0380c64051400961accf99ec41e70ec6d8ca (diff) | |
powerpc: Add a cpu feature CPU_FTR_PMAO_BUG
Some power8 revisions have a hardware bug where we can lose a
Performance Monitor (PMU) exception under certain circumstances.
We will be adding a workaround for this case, see the next commit for
details. The observed behaviour is that writing PMAO doesn't cause an
exception as we would expect, hence the name of the feature.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 6c8dd5da4de5..c1faade6506d 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -510,7 +510,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .pvr_mask = 0xffff0000, .pvr_value = 0x004b0000, .cpu_name = "POWER8E (raw)", - .cpu_features = CPU_FTRS_POWER8, + .cpu_features = CPU_FTRS_POWER8E, .cpu_user_features = COMMON_USER_POWER8, .cpu_user_features2 = COMMON_USER2_POWER8, .mmu_features = MMU_FTRS_POWER8, |