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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-07-20 06:42:58 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-20 14:56:40 +0200 |
| commit | 9a77c4a0a12597c661be374b8d566516c0341570 (patch) | |
| tree | d5599a79f7a90ffdac8b1272a26686ec0847c8dd /arch/powerpc/kernel/prom.c | |
| parent | Merge branch 'fixes' into next (diff) | |
| download | linux-9a77c4a0a12597c661be374b8d566516c0341570.tar.xz linux-9a77c4a0a12597c661be374b8d566516c0341570.zip | |
powerpc/prom: Enable Radix GTSE in cpu pa-features
When '029ab30b4c0a ("powerpc/mm: Enable radix GTSE only if supported.")'
made GTSE an MMU feature, it was enabled by default in
powerpc-cpu-features but was missed in pa-features. This causes random
memory corruption during boot of PowerNV kernels where
CONFIG_PPC_DT_CPU_FTRS isn't enabled.
Fixes: 029ab30b4c0a ("powerpc/mm: Enable radix GTSE only if supported.")
Reported-by: Qian Cai <cai@lca.pw>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
[mpe: Unwrap long line]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200720044258.863574-1-bharata@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 9cc49f265c86..033d43819ed8 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -163,7 +163,7 @@ static struct ibm_pa_feature { { .pabyte = 0, .pabit = 6, .cpu_features = CPU_FTR_NOEXECUTE }, { .pabyte = 1, .pabit = 2, .mmu_features = MMU_FTR_CI_LARGE_PAGE }, #ifdef CONFIG_PPC_RADIX_MMU - { .pabyte = 40, .pabit = 0, .mmu_features = MMU_FTR_TYPE_RADIX }, + { .pabyte = 40, .pabit = 0, .mmu_features = MMU_FTR_TYPE_RADIX | MMU_FTR_GTSE }, #endif { .pabyte = 1, .pabit = 1, .invert = 1, .cpu_features = CPU_FTR_NODSISRALIGN }, { .pabyte = 5, .pabit = 0, .cpu_features = CPU_FTR_REAL_LE, |