[PATCH V3 0/2] arm64/sysreg: Clean up TCR_EL1 field macros

Anshuman Khandual posted 2 patches 1 month ago
There is a newer version of this series
arch/arm64/include/asm/assembler.h     |  6 +-
arch/arm64/include/asm/cputype.h       |  2 +-
arch/arm64/include/asm/kvm_arm.h       | 78 ++++++++++++++++++++
arch/arm64/include/asm/mmu_context.h   |  4 +-
arch/arm64/include/asm/pgtable-hwdef.h | 98 +-------------------------
arch/arm64/include/asm/pgtable-prot.h  |  2 +-
arch/arm64/include/asm/sysreg.h        |  2 -
arch/arm64/kernel/cpufeature.c         |  4 +-
arch/arm64/kernel/pi/map_kernel.c      |  8 +--
arch/arm64/kernel/vmcore_info.c        |  2 +-
arch/arm64/mm/proc.S                   | 36 ++++++----
arch/arm64/tools/sysreg                | 52 +++++++++++---
tools/arch/arm64/include/asm/cputype.h |  2 +-
13 files changed, 162 insertions(+), 134 deletions(-)
[PATCH V3 0/2] arm64/sysreg: Clean up TCR_EL1 field macros
Posted by Anshuman Khandual 1 month ago
Currently TCR_EL1 field macros are sprinkled across the arm64 platform code
including KVM implementation. Clean these up via updating required register
filed definitions in tools sysreg format and then subsequently doing all
necessary replacements. TCR_XXX macros are moved from (asm/pgtable-hwdef.h)
into KVM header (asm/kvm_arm.h) for their continued usage in KVM.

The cleanup does not cause any functional change.

This applies on v6.17-rc4

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Mark Brown <broonie@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: kvmarm@lists.linux.dev
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org

Changes in V3:

- KVM TCR_XXX flags are expressed via TCR_EL1_XXX flags per Marc

Changes in V2:

https://lore.kernel.org/all/20250829060215.1086792-1-anshuman.khandual@arm.com/

- Fixed ARM ARM version from 7.B to L.B
- Changed UnsignedEnum into Enum per Mark
- Dropped all TCR_EL1 replacements from KVM code
- Moved existing TCR_XXX macros from (asm/pgtable-hwdef.h) into KVM header
  (asm/kvm_arm.h) for their continued usage
- Dropped patches 3 and 4 which could be done subsequently

Changes in V1:

https://lore.kernel.org/linux-arm-kernel/20250818045759.672408-1-anshuman.khandual@arm.com/


Anshuman Khandual (2):
  arm64/sysreg: Update TCR_EL1 register
  arm64/sysreg: Replace TCR_EL1 field macros

 arch/arm64/include/asm/assembler.h     |  6 +-
 arch/arm64/include/asm/cputype.h       |  2 +-
 arch/arm64/include/asm/kvm_arm.h       | 78 ++++++++++++++++++++
 arch/arm64/include/asm/mmu_context.h   |  4 +-
 arch/arm64/include/asm/pgtable-hwdef.h | 98 +-------------------------
 arch/arm64/include/asm/pgtable-prot.h  |  2 +-
 arch/arm64/include/asm/sysreg.h        |  2 -
 arch/arm64/kernel/cpufeature.c         |  4 +-
 arch/arm64/kernel/pi/map_kernel.c      |  8 +--
 arch/arm64/kernel/vmcore_info.c        |  2 +-
 arch/arm64/mm/proc.S                   | 36 ++++++----
 arch/arm64/tools/sysreg                | 52 +++++++++++---
 tools/arch/arm64/include/asm/cputype.h |  2 +-
 13 files changed, 162 insertions(+), 134 deletions(-)

-- 
2.25.1