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Subject[PATCH 4.19 082/114] powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
Date
From: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>

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.

Fixes: a5d4b5891c2f ("powerpc/mm: Fixup tlbie vs store ordering issue on POWER9")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190924035254.24612-2-aneesh.kumar@linux.ibm.com
---
arch/powerpc/include/asm/cputable.h | 4 ++--
arch/powerpc/kernel/dt_cpu_ftrs.c | 6 +++---
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +-
arch/powerpc/mm/hash_native_64.c | 2 +-
arch/powerpc/mm/tlb-radix.c | 4 ++--
5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 29f49a35d6eec..6a6804c2e1b08 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -212,7 +212,7 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTR_POWER9_DD2_1 LONG_ASM_CONST(0x0000080000000000)
#define CPU_FTR_P9_TM_HV_ASSIST LONG_ASM_CONST(0x0000100000000000)
#define CPU_FTR_P9_TM_XER_SO_BUG LONG_ASM_CONST(0x0000200000000000)
-#define CPU_FTR_P9_TLBIE_BUG LONG_ASM_CONST(0x0000400000000000)
+#define CPU_FTR_P9_TLBIE_STQ_BUG LONG_ASM_CONST(0x0000400000000000)
#define CPU_FTR_P9_TIDR LONG_ASM_CONST(0x0000800000000000)

#ifndef __ASSEMBLY__
@@ -460,7 +460,7 @@ static inline void cpu_feature_keys_init(void) { }
CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
- CPU_FTR_P9_TLBIE_BUG | CPU_FTR_P9_TIDR)
+ CPU_FTR_P9_TLBIE_STQ_BUG | CPU_FTR_P9_TIDR)
#define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9
#define CPU_FTRS_POWER9_DD2_1 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1)
#define CPU_FTRS_POWER9_DD2_2 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1 | \
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 2fdc08ab6b9e2..f3b8e04eca9c3 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -708,14 +708,14 @@ static __init void update_tlbie_feature_flag(unsigned long pvr)
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;
}
}
}
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index a67cf1cdeda40..7c68d834c94a7 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -452,7 +452,7 @@ static void do_tlbies(struct kvm *kvm, unsigned long *rbvalues,
"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
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index aaa28fd918fe4..0c13561d8b807 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -203,7 +203,7 @@ static inline unsigned long ___tlbie(unsigned long vpn, int psize,

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);
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index fef3e1eb3a199..0cddae4263f96 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -220,7 +220,7 @@ 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);
}
@@ -230,7 +230,7 @@ static inline void fixup_tlbie_lpid(unsigned long lpid)
{
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_lpid_va(va, lpid, mmu_get_ap(MMU_PAGE_64K), RIC_FLUSH_TLB);
}
--
2.20.1


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