From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Mark Brown <broonie@kernel.org>,
Ryan Roberts <ryan.roberts@arm.com>,
kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH V4 0/2] arm64/sysreg: Clean up TCR_EL1 field macros
Date: Sun, 7 Sep 2025 17:59:58 +0530 [thread overview]
Message-ID: <20250907123000.414181-1-anshuman.khandual@arm.com> (raw)
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. All required TCR_XXX macros have been 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 V4:
- Dropped all unused TCR_XXX macros while moving into KVM header
Changes in V3:
https://lore.kernel.org/all/20250901072037.743380-1-anshuman.khandual@arm.com/
- 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 | 43 +++++++++++
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, 127 insertions(+), 134 deletions(-)
--
2.25.1
next reply other threads:[~2025-09-07 12:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-07 12:29 Anshuman Khandual [this message]
2025-09-07 12:29 ` [PATCH V4 1/2] arm64/sysreg: Update TCR_EL1 register Anshuman Khandual
2025-09-08 13:58 ` Mark Brown
2025-09-09 3:50 ` Anshuman Khandual
2025-09-09 11:22 ` Mark Brown
2025-09-07 12:30 ` [PATCH V4 2/2] arm64/sysreg: Replace TCR_EL1 field macros Anshuman Khandual
2025-09-18 12:08 ` Will Deacon
2025-09-19 9:22 ` Anshuman Khandual
2025-09-15 2:24 ` [PATCH V4 0/2] arm64/sysreg: Clean up " Anshuman Khandual
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