[V5,0/4] arm64/cpufeature: Introduce ID_PFR2, ID_DFR1, ID_MMFR5 and other changes

Message

Anshuman Khandual May 27, 2020, 3:03 a.m. UTC

These are remaining patches from V4 series which had some pending reviews
from Suzuki (https://patchwork.kernel.org/cover/11557333/). Also dropped
[PATCH 15/17] as that will need some more investigation and rework.

This series applies on arm64/for-next/cpufeature.

Cc: Catalin Marinas <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: Mark Rutland <[e-mail]> 
Cc: Marc Zyngier <[e-mail]>
Cc: James Morse <[e-mail]>
Cc: Suzuki K Poulose <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: [e-mail]

Changes in V5:

- Dropped TGRAN features along with it's macros from ID_AA64MMFR0 per Suzuki
- Replaced with FTR_HIGHER_SAFE for SpecSEI feature in ID_AA64MMFR1 per Suzuki
- Dropped patch "arm64/cpufeature: Add remaining feature bits in ID_AA64DFR0 register"

Changes in V4: (https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=290085)

- Updated ftr_id_dfr0[] with a documentation for now missing [31:28] Tracfilt per Will
- Fixed erroneous bit width value from 28 to 4 for double lock feature per Will
- Replaced ID_SANITIZED() with ID_HIDDEN() for SYS_ID_DFR1_EL1 per Suzuki
- Fixed positions for register definitions as per new name based grouping per Will
- Replaced FTR_VISIBLE with FTR_HIDDEN for TLB feature in ID_AA64ISAR0 per Suzuki
- Replaced FTR_VISIBLE with FTR_HIDDEN for MPAM and SEL2 in ID_AA64PFR0 per Suzuki
- Replaced FTR_VISIBLE with FTR_HIDDEN for MPAMFRAC and RASFRAC in ID_AA64PFR1 per Suzuki
- Dropped both MTE and BT features from ftr_id_aa64pfr1[] to be added later per Suzuki
- Added ID_MMFR4_EL1 into the cpuinfo_arm64 context per Will

Changes in V3: (https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=281211)

- Rebased on git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git (for-next/cpufeature)

Changes in V2: (https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=270605)

- Added Suggested-by tag from Mark Rutland for all changes he had proposed
- Added comment for SpecSEI feature on why it is HIGHER_SAFE per Suzuki
- Added a patch which makes ID_AA64DFR0_DOUBLELOCK a signed feature per Suzuki
- Added ID_DFR1 and ID_MMFR5 system register definitions per Will
- Added remaining features bits for relevant 64 bit system registers per Will
- Changed commit message on [PATCH 5/7] regarding TraceFilt feature per Suzuki
- Changed ID_PFR2.CSV3 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per Will
- Changed ID_PFR0.CSV2 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per Will 
- Changed some commit messages

Changes in V1: (https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=234093)

Anshuman Khandual (4):
  arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR0 register
  arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR1 register
  arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR2 register
  arm64/cpufeature: Replace all open bits shift encodings with macros

 arch/arm64/include/asm/sysreg.h | 42 +++++++++++++++++++++
 arch/arm64/kernel/cpufeature.c  | 67 ++++++++++++++++++++-------------
 2 files changed, 83 insertions(+), 26 deletions(-)

Comments

Catalin Marinas July 2, 2020, 5:34 p.m. UTC | #1

On Wed, May 27, 2020 at 08:33:35AM +0530, Anshuman Khandual wrote:
> These are remaining patches from V4 series which had some pending reviews
> from Suzuki (https://patchwork.kernel.org/cover/11557333/). Also dropped
> [PATCH 15/17] as that will need some more investigation and rework.
> 
> This series applies on arm64/for-next/cpufeature.
> 
> Cc: Catalin Marinas <[e-mail]>
> Cc: Will Deacon <[e-mail]>
> Cc: Mark Rutland <[e-mail]> 
> Cc: Marc Zyngier <[e-mail]>
> Cc: James Morse <[e-mail]>
> Cc: Suzuki K Poulose <[e-mail]>
> Cc: [e-mail]
> Cc: [e-mail]
> Cc: [e-mail]

Thanks Suzuki for review.

Anshuman, could you please rebase this series on top of 5.8-rc3? It no
longer applies cleanly.

Thanks.

Anshuman Khandual July 3, 2020, 11:54 a.m. UTC | #2

On 07/02/2020 11:04 PM, Catalin Marinas wrote:
> On Wed, May 27, 2020 at 08:33:35AM +0530, Anshuman Khandual wrote:
>> These are remaining patches from V4 series which had some pending reviews
>> from Suzuki (https://patchwork.kernel.org/cover/11557333/). Also dropped
>> [PATCH 15/17] as that will need some more investigation and rework.
>>
>> This series applies on arm64/for-next/cpufeature.
>>
>> Cc: Catalin Marinas <[e-mail]>
>> Cc: Will Deacon <[e-mail]>
>> Cc: Mark Rutland <[e-mail]> 
>> Cc: Marc Zyngier <[e-mail]>
>> Cc: James Morse <[e-mail]>
>> Cc: Suzuki K Poulose <[e-mail]>
>> Cc: [e-mail]
>> Cc: [e-mail]
>> Cc: [e-mail]
> 
> Thanks Suzuki for review.
> 
> Anshuman, could you please rebase this series on top of 5.8-rc3? It no
> longer applies cleanly.

Already posted here.

https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=312281