From: Michael Neuling <mikey@neuling.org>
To: mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org, paulus@ozlabs.org,
david@gibson.dropbear.id.au, npiggin@gmail.com,
pedromfc@linux.vnet.ibm.com, kvm-ppc@vger.kernel.org,
Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Subject: [PATCH v3 8/8] powerpc: Disable DAWR in the base POWER9 CPU features
Date: Tue, 27 Mar 2018 15:37:24 +1100 [thread overview]
Message-ID: <20180327043724.13862-9-mikey@neuling.org> (raw)
In-Reply-To: <20180327043724.13862-1-mikey@neuling.org>
Using the DAWR on POWER9 can cause xstops, hence we need to disable
it.
Signed-off-by: Michael Neuling <mikey@neuling.org>
---
arch/powerpc/include/asm/cputable.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index a2c5c95882..79a206bcd4 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -463,9 +463,8 @@ 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
--
2.14.1
prev parent reply other threads:[~2018-03-27 4:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-27 4:37 [PATCH v3 0/8] powerpc: Disable DAWR on POWER9 Michael Neuling
2018-03-27 4:37 ` [PATCH v3 1/8] powerpc: Add ppc_breakpoint_available() Michael Neuling
2018-03-28 14:13 ` [v3,1/8] " Michael Ellerman
2018-03-27 4:37 ` [PATCH v3 2/8] powerpc: Update ptrace to use ppc_breakpoint_available() Michael Neuling
2018-03-27 4:37 ` [PATCH v3 3/8] powerpc: Update xmon " Michael Neuling
2018-03-27 4:37 ` [PATCH v3 4/8] KVM: PPC: Book3S HV: Return error from h_set_mode(SET_DAWR) on POWER9 Michael Neuling
2018-03-27 4:37 ` [PATCH v3 5/8] KVM: PPC: Book3S HV: Return error from h_set_dabr() " Michael Neuling
2018-03-27 4:37 ` [PATCH v3 6/8] KVM: PPC: Book3S HV: Handle migration with POWER9 disabled DAWR Michael Neuling
2018-03-27 4:37 ` [PATCH v3 7/8] powerpc: Disable DAWR on POWER9 via CPU feature quirk Michael Neuling
2018-03-27 4:37 ` Michael Neuling [this message]
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