diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-20 22:08:27 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-31 16:47:49 +0300 |
| commit | 9e9626ed3a4affe7fe0e17e98c357849ad299e50 (patch) | |
| tree | 516c78a90e4d1f989e948fac8ebe28b68d2f3887 /arch | |
| parent | 15a3204d24a3c01b116fb7c0692b7c670cac631d (diff) | |
| download | linux-9e9626ed3a4affe7fe0e17e98c357849ad299e50.tar.xz | |
powerpc/64s: Fix POWER9 DD2.2 and above in DT CPU features
The CPU_FTR_POWER9_DD2_1 flag is intended to be set for DD2.1 and
above (which is what the cputable setup does). Fix DT CPU features
quirk setup to match.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Merge with upstream changes]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/dt_cpu_ftrs.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 4313ff07edca..11a3a4fed3fb 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -708,11 +708,16 @@ static __init void cpufeatures_cpu_quirks(void) */ if ((version & 0xffffff00) == 0x004e0100) cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD1; + else if ((version & 0xffffefff) == 0x004e0200) + ; /* DD2.0 has no feature flag */ else if ((version & 0xffffefff) == 0x004e0201) cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; - else if ((version & 0xffffefff) == 0x004e0202) - cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_HV_ASSIST | - CPU_FTR_P9_TM_XER_SO_BUG; + else if ((version & 0xffffefff) == 0x004e0202) { + cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_HV_ASSIST; + cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_XER_SO_BUG; + cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; + } else /* DD2.1 and up have DD2_1 */ + cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; if ((version & 0xffff0000) == 0x004e0000) { cur_cpu_spec->cpu_features &= ~(CPU_FTR_DAWR); |