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 V3 1/2] arm64/sysreg: Update TCR_EL1 register
Date: Mon, 1 Sep 2025 12:50:36 +0530 [thread overview]
Message-ID: <20250901072037.743380-2-anshuman.khandual@arm.com> (raw)
In-Reply-To: <20250901072037.743380-1-anshuman.khandual@arm.com>
Update TCR_EL1 register fields as per latest ARM ARM DDI 0487 L.B and while
here drop an explicit sysreg definition SYS_TCR_EL1 from sysreg.h, which is
now redundant.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
The updated TCR_EL1 fields also matches with latest released TCR_EL1 layout.
https://developer.arm.com/documentation/ddi0601/2025-06/AArch64-Registers/TCR-EL1--Translation-Control-Register--EL1-?lang=en
arch/arm64/include/asm/sysreg.h | 2 --
arch/arm64/tools/sysreg | 52 ++++++++++++++++++++++++++++-----
2 files changed, 44 insertions(+), 10 deletions(-)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 6604fd6f33f4..71febc944adb 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -281,8 +281,6 @@
#define SYS_RGSR_EL1 sys_reg(3, 0, 1, 0, 5)
#define SYS_GCR_EL1 sys_reg(3, 0, 1, 0, 6)
-#define SYS_TCR_EL1 sys_reg(3, 0, 2, 0, 2)
-
#define SYS_APIAKEYLO_EL1 sys_reg(3, 0, 2, 1, 0)
#define SYS_APIAKEYHI_EL1 sys_reg(3, 0, 2, 1, 1)
#define SYS_APIBKEYLO_EL1 sys_reg(3, 0, 2, 1, 2)
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 696ab1f32a67..85da09795527 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -4756,17 +4756,53 @@ Field 37 TBI0
Field 36 AS
Res0 35
Field 34:32 IPS
-Field 31:30 TG1
-Field 29:28 SH1
-Field 27:26 ORGN1
-Field 25:24 IRGN1
+Enum 31:30 TG1
+ 0b01 16K
+ 0b10 4K
+ 0b11 64K
+EndEnum
+Enum 29:28 SH1
+ 0b00 NONE
+ 0b10 OUTER
+ 0b11 INNER
+EndEnum
+Enum 27:26 ORGN1
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
+Enum 25:24 IRGN1
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
Field 23 EPD1
Field 22 A1
Field 21:16 T1SZ
-Field 15:14 TG0
-Field 13:12 SH0
-Field 11:10 ORGN0
-Field 9:8 IRGN0
+Enum 15:14 TG0
+ 0b00 4K
+ 0b01 64K
+ 0b10 16K
+EndEnum
+Enum 13:12 SH0
+ 0b00 NONE
+ 0b10 OUTER
+ 0b11 INNER
+EndEnum
+Enum 11:10 ORGN0
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
+Enum 9:8 IRGN0
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
Field 7 EPD0
Res0 6
Field 5:0 T0SZ
--
2.25.1
next prev parent reply other threads:[~2025-09-01 7:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-01 7:20 [PATCH V3 0/2] arm64/sysreg: Clean up TCR_EL1 field macros Anshuman Khandual
2025-09-01 7:20 ` Anshuman Khandual [this message]
2025-09-01 7:20 ` [PATCH V3 2/2] arm64/sysreg: Replace " Anshuman Khandual
2025-09-01 10:37 ` Ben Horgan
2025-09-01 11:17 ` Anshuman Khandual
2025-09-01 12:45 ` Anshuman Khandual
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