From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
linuxram@us.ibm.com, bauerman@linux.ibm.com
Subject: [PATCH v6 08/23] powerpc/book3s64/pkeys: kill cpu feature key CPU_FTR_PKEY
Date: Thu, 9 Jul 2020 08:59:31 +0530 [thread overview]
Message-ID: <20200709032946.881753-9-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20200709032946.881753-1-aneesh.kumar@linux.ibm.com>
We don't use CPU_FTR_PKEY anymore. Remove the feature bit and mark it
free.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
arch/powerpc/include/asm/cputable.h | 13 ++++++-------
arch/powerpc/kernel/dt_cpu_ftrs.c | 6 ------
2 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index bac2252c839e..dd0a2e77a695 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -198,7 +198,7 @@ static inline void cpu_feature_keys_init(void) { }
#define CPU_FTR_STCX_CHECKS_ADDRESS LONG_ASM_CONST(0x0000000080000000)
#define CPU_FTR_POPCNTB LONG_ASM_CONST(0x0000000100000000)
#define CPU_FTR_POPCNTD LONG_ASM_CONST(0x0000000200000000)
-#define CPU_FTR_PKEY LONG_ASM_CONST(0x0000000400000000)
+/* LONG_ASM_CONST(0x0000000400000000) Free */
#define CPU_FTR_VMX_COPY LONG_ASM_CONST(0x0000000800000000)
#define CPU_FTR_TM LONG_ASM_CONST(0x0000001000000000)
#define CPU_FTR_CFAR LONG_ASM_CONST(0x0000002000000000)
@@ -438,7 +438,7 @@ static inline void cpu_feature_keys_init(void) { }
CPU_FTR_DSCR | CPU_FTR_SAO | CPU_FTR_ASYM_SMT | \
CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
CPU_FTR_CFAR | CPU_FTR_HVMODE | \
- CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR | CPU_FTR_DABRX | CPU_FTR_PKEY)
+ CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR | CPU_FTR_DABRX )
#define CPU_FTRS_POWER8 (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -448,7 +448,7 @@ static inline void cpu_feature_keys_init(void) { }
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_PKEY)
+ CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP )
#define CPU_FTRS_POWER8E (CPU_FTRS_POWER8 | CPU_FTR_PMAO_BUG)
#define CPU_FTRS_POWER9 (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
@@ -459,8 +459,8 @@ static inline void cpu_feature_keys_init(void) { }
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_ARCH_207S | \
- CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
- CPU_FTR_P9_TLBIE_STQ_BUG | CPU_FTR_P9_TLBIE_ERAT_BUG | CPU_FTR_P9_TIDR)
+ CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_P9_TLBIE_STQ_BUG | \
+ CPU_FTR_P9_TLBIE_ERAT_BUG | CPU_FTR_P9_TIDR)
#define CPU_FTRS_POWER9_DD2_0 (CPU_FTRS_POWER9 | CPU_FTR_P9_RADIX_PREFETCH_BUG)
#define CPU_FTRS_POWER9_DD2_1 (CPU_FTRS_POWER9 | \
CPU_FTR_P9_RADIX_PREFETCH_BUG | \
@@ -477,8 +477,7 @@ static inline void cpu_feature_keys_init(void) { }
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_ARCH_207S | \
- CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
- CPU_FTR_ARCH_31)
+ CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_ARCH_31)
#define CPU_FTRS_CELL (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index a0edeb391e3e..3765d211b88b 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -775,12 +775,6 @@ static __init void cpufeatures_cpu_quirks(void)
}
update_tlbie_feature_flag(version);
- /*
- * PKEY was not in the initial base or feature node
- * specification, but it should become optional in the next
- * cpu feature version sequence.
- */
- cur_cpu_spec->cpu_features |= CPU_FTR_PKEY;
}
static void __init cpufeatures_setup_finished(void)
--
2.26.2
next prev parent reply other threads:[~2020-07-09 3:45 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 3:29 [PATCH v6 00/23] powerpc/book3s/64/pkeys: Simplify the code Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 01/23] powerpc/book3s64/pkeys: Use PVR check instead of cpu feature Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 02/23] powerpc/book3s64/pkeys: Fixup bit numbering Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 03/23] powerpc/book3s64/pkeys: pkeys are supported only on hash on book3s Aneesh Kumar K.V
2020-07-20 6:05 ` Michael Ellerman
2020-07-20 6:15 ` Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 04/23] powerpc/book3s64/pkeys: Move pkey related bits in the linux page table Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 05/23] powerpc/book3s64/pkeys: Explain key 1 reservation details Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 06/23] powerpc/book3s64/pkeys: Simplify the key initialization Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 07/23] powerpc/book3s64/pkeys: Prevent key 1 modification from userspace Aneesh Kumar K.V
2020-07-09 3:29 ` Aneesh Kumar K.V [this message]
2020-07-09 3:29 ` [PATCH v6 09/23] powerpc/book3s64/pkeys: Simplify pkey disable branch Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 10/23] powerpc/book3s64/pkeys: Convert pkey_total to num_pkey Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 11/23] powerpc/book3s64/pkeys: Make initial_allocation_mask static Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 12/23] powerpc/book3s64/pkeys: Mark all the pkeys above max pkey as reserved Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 13/23] powerpc/book3s64/pkeys: Add MMU_FTR_PKEY Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 14/23] powerpc/book3s64/kuep: Add MMU_FTR_KUEP Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 15/23] powerpc/book3s64/pkeys: Use pkey_execute_disable_supported Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 16/23] powerpc/book3s64/pkeys: Use MMU_FTR_PKEY instead of pkey_disabled static key Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 17/23] powerpc/book3s64/keys: Print information during boot Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 18/23] powerpc/book3s64/keys/kuap: Reset AMR/IAMR values on kexec Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 19/23] powerpc/book3s64/kuap: Move UAMOR setup to key init function Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 20/23] powerpc/selftest/ptrave-pkey: Rename variables to make it easier to follow code Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 21/23] powerpc/selftest/ptrace-pkey: Update the test to mark an invalid pkey correctly Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 22/23] powerpc/selftest/ptrace-pkey: Don't update expected UAMOR value Aneesh Kumar K.V
2020-07-09 3:29 ` [PATCH v6 23/23] powerpc/book3s64/pkeys: Remove is_pkey_enabled() Aneesh Kumar K.V
2020-07-24 13:24 ` [PATCH v6 00/23] powerpc/book3s/64/pkeys: Simplify the code Michael Ellerman
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