Patch "powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag" has been added to the 4.14-stable tree
gregkh at linuxfoundation.org
gregkh at linuxfoundation.org
Sat Nov 9 03:56:25 AEDT 2019
This is a note to let you know that I've just added the patch titled
powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-book3s64-radix-rename-cpu_ftr_p9_tlbie_bug-feature-flag.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable at vger.kernel.org> know about it.
>From foo at baz Fri 08 Nov 2019 05:55:09 PM CET
From: Sandipan Das <sandipan at linux.ibm.com>
Date: Thu, 17 Oct 2019 13:35:02 +0530
Subject: powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
To: gregkh at linuxfoundation.org
Cc: stable at vger.kernel.org, aneesh.kumar at linux.ibm.com, mpe at ellerman.id.au, linuxppc-dev at lists.ozlabs.org
Message-ID: <20191017080505.8348-3-sandipan at linux.ibm.com>
From: "Aneesh Kumar K.V" <aneesh.kumar at linux.ibm.com>
commit 09ce98cacd51fcd0fa0af2f79d1e1d3192f4cbb0 upstream.
Rename the #define to indicate this is related to store vs tlbie
ordering issue. In the next patch, we will be adding another feature
flag that is used to handles ERAT flush vs tlbie ordering issue.
Cc: stable at vger.kernel.org # v4.14
Fixes: a5d4b5891c2f ("powerpc/mm: Fixup tlbie vs store ordering issue on POWER9")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
Link: https://lore.kernel.org/r/20190924035254.24612-2-aneesh.kumar@linux.ibm.com
[sandipan: Backported to v4.14]
Signed-off-by: Sandipan Das <sandipan at linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
arch/powerpc/include/asm/cputable.h | 4 ++--
arch/powerpc/kernel/dt_cpu_ftrs.c | 6 +++---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +-
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +-
arch/powerpc/mm/hash_native_64.c | 2 +-
arch/powerpc/mm/tlb-radix.c | 2 +-
6 files changed, 9 insertions(+), 9 deletions(-)
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -215,7 +215,7 @@ enum {
#define CPU_FTR_DAWR LONG_ASM_CONST(0x0400000000000000)
#define CPU_FTR_DABRX LONG_ASM_CONST(0x0800000000000000)
#define CPU_FTR_PMAO_BUG LONG_ASM_CONST(0x1000000000000000)
-#define CPU_FTR_P9_TLBIE_BUG LONG_ASM_CONST(0x2000000000000000)
+#define CPU_FTR_P9_TLBIE_STQ_BUG LONG_ASM_CONST(0x0000400000000000)
#define CPU_FTR_POWER9_DD1 LONG_ASM_CONST(0x4000000000000000)
#ifndef __ASSEMBLY__
@@ -477,7 +477,7 @@ enum {
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_P9_TLBIE_BUG)
+ CPU_FTR_P9_TLBIE_STQ_BUG)
#define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \
(~CPU_FTR_SAO))
#define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -747,14 +747,14 @@ static __init void update_tlbie_feature_
if ((pvr & 0xe000) == 0) {
/* Nimbus */
if ((pvr & 0xfff) < 0x203)
- cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_BUG;
+ cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_STQ_BUG;
} else if ((pvr & 0xc000) == 0) {
/* Cumulus */
if ((pvr & 0xfff) < 0x103)
- cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_BUG;
+ cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_STQ_BUG;
} else {
WARN_ONCE(1, "Unknown PVR");
- cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_BUG;
+ cur_cpu_spec->cpu_features |= CPU_FTR_P9_TLBIE_STQ_BUG;
}
}
}
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -160,7 +160,7 @@ static void kvmppc_radix_tlbie_page(stru
asm volatile("ptesync": : :"memory");
asm volatile(PPC_TLBIE_5(%0, %1, 0, 0, 1)
: : "r" (addr), "r" (kvm->arch.lpid) : "memory");
- if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG))
+ if (cpu_has_feature(CPU_FTR_P9_TLBIE_STQ_BUG))
asm volatile(PPC_TLBIE_5(%0, %1, 0, 0, 1)
: : "r" (addr), "r" (kvm->arch.lpid) : "memory");
asm volatile("ptesync": : :"memory");
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -449,7 +449,7 @@ static void do_tlbies(struct kvm *kvm, u
"r" (rbvalues[i]), "r" (kvm->arch.lpid));
}
- if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG)) {
+ if (cpu_has_feature(CPU_FTR_P9_TLBIE_STQ_BUG)) {
/*
* Need the extra ptesync to make sure we don't
* re-order the tlbie
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -106,7 +106,7 @@ static inline unsigned long ___tlbie(un
static inline void fixup_tlbie(unsigned long vpn, int psize, int apsize, int ssize)
{
- if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG)) {
+ if (cpu_has_feature(CPU_FTR_P9_TLBIE_STQ_BUG)) {
/* Need the extra ptesync to ensure we don't reorder tlbie*/
asm volatile("ptesync": : :"memory");
___tlbie(vpn, psize, apsize, ssize);
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -44,7 +44,7 @@ static inline void fixup_tlbie(void)
unsigned long pid = 0;
unsigned long va = ((1UL << 52) - 1);
- if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG)) {
+ if (cpu_has_feature(CPU_FTR_P9_TLBIE_STQ_BUG)) {
asm volatile("ptesync": : :"memory");
__tlbie_va(va, pid, mmu_get_ap(MMU_PAGE_64K), RIC_FLUSH_TLB);
}
Patches currently in stable-queue which might be from sandipan at linux.ibm.com are
queue-4.14/powerpc-book3s64-mm-don-t-do-tlbie-fixup-for-some-hardware-revisions.patch
queue-4.14/selftests-powerpc-add-test-case-for-tlbie-vs-mtpidr-ordering-issue.patch
queue-4.14/selftests-powerpc-fix-compile-error-on-tlbie_test-due-to-newer-gcc.patch
queue-4.14/powerpc-mm-fixup-tlbie-vs-mtpidr-mtlpidr-ordering-issue-on-power9.patch
queue-4.14/powerpc-mm-fixup-tlbie-vs-store-ordering-issue-on-power9.patch
queue-4.14/powerpc-book3s64-radix-rename-cpu_ftr_p9_tlbie_bug-feature-flag.patch
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