[PATCH 4/9] powerpc/64s: dt_cpu_ftrs fix POWER9 DD2.2 and above
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2018-02-20 21:11:20
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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_ftrs setup to match. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kernel/dt_cpu_ftrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 945e2c29ad2d..cb6ae7b3cdd6 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c@@ -707,7 +707,9 @@ static __init void cpufeatures_cpu_quirks(void) */ if ((version & 0xffffff00) == 0x004e0100) cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD1; - else if ((version & 0xffffefff) == 0x004e0201) + else if ((version & 0xffffefff) == 0x004e0200) + ; /* DD2.0 has no feature flag */ + else /* DD2.1 and up have DD2_1 */ cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; }
--
2.16.1