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powerpc/64s: Fix POWER9 DD2.2 and above in DT CPU features

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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>
This commit is contained in:
Nicholas Piggin 2018-02-21 05:08:27 +10:00 committed by Michael Ellerman
parent 15a3204d24
commit 9e9626ed3a
1 changed files with 8 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
arch/powerpc/kernel/dt_cpu_ftrs.c
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@ -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);