[RFC PATCH 13/38] arm64/sysreg: Standardise naming for MVFR0_EL1

James Morse james.morse at arm.com
Fri Sep 30 07:01:46 PDT 2022


To convert the 32bit id registers to use the sysreg generation, they
must first have a regular pattern, to match the symbols the script
generates.

Ensure symbols for the MVFR0_EL1 register use lower-case for feature
names where the arm-arm does the same.

No functional change.

Signed-off-by: James Morse <james.morse at arm.com>
---
 arch/arm64/include/asm/sysreg.h | 16 ++++++++--------
 arch/arm64/kernel/cpufeature.c  |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 5f889f3d2c7e..60642d9bc673 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -769,14 +769,14 @@
 #define ID_PFR2_EL1_SSBS_SHIFT		4
 #define ID_PFR2_EL1_CSV3_SHIFT		0
 
-#define MVFR0_FPROUND_SHIFT		28
-#define MVFR0_FPSHVEC_SHIFT		24
-#define MVFR0_FPSQRT_SHIFT		20
-#define MVFR0_FPDIVIDE_SHIFT		16
-#define MVFR0_FPTRAP_SHIFT		12
-#define MVFR0_FPDP_SHIFT		8
-#define MVFR0_FPSP_SHIFT		4
-#define MVFR0_SIMD_SHIFT		0
+#define MVFR0_EL1_FPRound_SHIFT		28
+#define MVFR0_EL1_FPShVec_SHIFT		24
+#define MVFR0_EL1_FPSqrt_SHIFT		20
+#define MVFR0_EL1_FPDivide_SHIFT	16
+#define MVFR0_EL1_FPTrap_SHIFT		12
+#define MVFR0_EL1_FPDP_SHIFT		8
+#define MVFR0_EL1_FPSP_SHIFT		4
+#define MVFR0_EL1_SIMDReg_SHIFT		0
 
 #define MVFR1_SIMDFMAC_SHIFT		28
 #define MVFR1_FPHP_SHIFT		24
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 1567b32ae03e..b2fc4a6d738a 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2816,8 +2816,8 @@ static const struct arm64_cpu_capabilities compat_elf_hwcaps[] = {
 	HWCAP_CAP_MATCH(compat_has_neon, CAP_COMPAT_HWCAP, COMPAT_HWCAP_NEON),
 	HWCAP_CAP(SYS_MVFR1_EL1, MVFR1_SIMDFMAC_SHIFT, 4, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv4),
 	/* Arm v8 mandates MVFR0.FPDP == {0, 2}. So, piggy back on this for the presence of VFP support */
-	HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_FPDP_SHIFT, 4, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFP),
-	HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_FPDP_SHIFT, 4, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv3),
+	HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_EL1_FPDP_SHIFT, 4, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFP),
+	HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_EL1_FPDP_SHIFT, 4, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv3),
 	HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_EL1_AES_SHIFT, 4, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_PMULL),
 	HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_EL1_AES_SHIFT, 4, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_AES),
 	HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_EL1_SHA1_SHIFT, 4, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_SHA1),
-- 
2.30.2




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