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arm64/sysreg: Standardise naming for MVFR1_EL1 

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 MVFR1_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@arm.com>
Link: https://lore.kernel.org/r/20221130171637.718182-15-james.morse@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
James Morse 2022-11-30 17:16:13 +00:00 committed by Will Deacon
parent a3aab94801
commit d3e1aa85b1
2 changed files with 20 additions and 20 deletions
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16
arch/arm64/include/asm/sysreg.h
View File

@ -778,14 +778,14 @@
#define MVFR0_EL1_FPSP_SHIFT 4
#define MVFR0_EL1_SIMDReg_SHIFT 0
#define MVFR1_SIMDFMAC_SHIFT 28
#define MVFR1_FPHP_SHIFT 24
#define MVFR1_SIMDHP_SHIFT 20
#define MVFR1_SIMDSP_SHIFT 16
#define MVFR1_SIMDINT_SHIFT 12
#define MVFR1_SIMDLS_SHIFT 8
#define MVFR1_FPDNAN_SHIFT 4
#define MVFR1_FPFTZ_SHIFT 0
#define MVFR1_EL1_SIMDFMAC_SHIFT 28
#define MVFR1_EL1_FPHP_SHIFT 24
#define MVFR1_EL1_SIMDHP_SHIFT 20
#define MVFR1_EL1_SIMDSP_SHIFT 16
#define MVFR1_EL1_SIMDInt_SHIFT 12
#define MVFR1_EL1_SIMDLS_SHIFT 8
#define MVFR1_EL1_FPDNaN_SHIFT 4
#define MVFR1_EL1_FPFtZ_SHIFT 0
#define ID_PFR1_EL1_GIC_SHIFT 28
#define ID_PFR1_EL1_Virt_frac_SHIFT 24

24
arch/arm64/kernel/cpufeature.c
View File

@ -441,14 +441,14 @@ static const struct arm64_ftr_bits ftr_mvfr0[] = {
};
static const struct arm64_ftr_bits ftr_mvfr1[] = {
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_SIMDFMAC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_FPHP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_SIMDHP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_SIMDSP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_SIMDINT_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_SIMDLS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_FPDNAN_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_FPFTZ_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_SIMDFMAC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_FPHP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_SIMDHP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_SIMDSP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_SIMDInt_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_SIMDLS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_FPDNaN_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, MVFR1_EL1_FPFtZ_SHIFT, 4, 0),
ARM64_FTR_END,
};
@ -2829,16 +2829,16 @@ static bool compat_has_neon(const struct arm64_cpu_capabilities *cap, int scope)
else
mvfr1 = read_sysreg_s(SYS_MVFR1_EL1);
return cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDSP_SHIFT) &&
cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDINT_SHIFT) &&
cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDLS_SHIFT);
return cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_EL1_SIMDSP_SHIFT) &&
cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_EL1_SIMDInt_SHIFT) &&
cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_EL1_SIMDLS_SHIFT);
}
#endif
static const struct arm64_cpu_capabilities compat_elf_hwcaps[] = {
#ifdef CONFIG_COMPAT
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),
HWCAP_CAP(SYS_MVFR1_EL1, MVFR1_EL1_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_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),