powerpc: Disable DAWR in the base POWER9 CPU features
authorMichael Neuling <mikey@neuling.org>
Tue, 27 Mar 2018 04:37:24 +0000 (15:37 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 27 Mar 2018 12:55:33 +0000 (23:55 +1100)
Using the DAWR on POWER9 can cause xstops, hence we need to disable
it.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/cputable.h

index ecee84dea7e7644cf8599a0b59e1f7afdf123d07..734ff976b82f7fb34eaa2cf8620aea69caa3998b 100644 (file)
@@ -464,9 +464,8 @@ static inline void cpu_feature_keys_init(void) { }
            CPU_FTR_DSCR | CPU_FTR_SAO  | \
            CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
            CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
-           CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \
-           CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | \
-           CPU_FTR_PKEY)
+           CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
+           CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY)
 #define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \
                             (~CPU_FTR_SAO))
 #define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9