diff options
| author | Mark Brown <broonie@kernel.org> | 2022-02-07 15:20:31 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-02-25 14:28:18 +0000 |
| commit | 3bb72d86d80eb9296d43f9e807b6f9ff58049552 (patch) | |
| tree | 4268c441af9c56a1ac432619212db74a3c84edf1 /arch/arm64/include | |
| parent | 879358fc670dbc8dc3b0e3e4975ff39e38847707 (diff) | |
| download | linux-3bb72d86d80eb9296d43f9e807b6f9ff58049552.tar.bz2 | |
arm64: Always use individual bits in CPACR floating point enables
CPACR_EL1 has several bitfields for controlling traps for floating point
features to EL1, each of which has a separate bits for EL0 and EL1. Marc
Zyngier noted that we are not consistent in our use of defines to
manipulate these, sometimes using a define covering the whole field and
sometimes using defines for the individual bits. Make this consistent by
expanding the whole field defines where they are used (currently only in
the KVM code) and deleting them so that no further uses can be
introduced.
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220207152109.197566-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_arm.h | 3 | ||||
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 2 |
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index eec790842fe2..1767ded83888 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -356,6 +356,7 @@ ECN(BKPT32), ECN(VECTOR32), ECN(BRK64) #define CPACR_EL1_TTA (1 << 28) -#define CPACR_EL1_DEFAULT (CPACR_EL1_FPEN | CPACR_EL1_ZEN_EL1EN) +#define CPACR_EL1_DEFAULT (CPACR_EL1_FPEN_EL0EN | CPACR_EL1_FPEN_EL1EN |\ + CPACR_EL1_ZEN_EL1EN) #endif /* __ARM64_KVM_ARM_H__ */ diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 1da4c43d597d..e66dd9ebc337 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -1099,11 +1099,9 @@ #define CPACR_EL1_FPEN_EL1EN (BIT(20)) /* enable EL1 access */ #define CPACR_EL1_FPEN_EL0EN (BIT(21)) /* enable EL0 access, if EL1EN set */ -#define CPACR_EL1_FPEN (CPACR_EL1_FPEN_EL1EN | CPACR_EL1_FPEN_EL0EN) #define CPACR_EL1_ZEN_EL1EN (BIT(16)) /* enable EL1 access */ #define CPACR_EL1_ZEN_EL0EN (BIT(17)) /* enable EL0 access, if EL1EN set */ -#define CPACR_EL1_ZEN (CPACR_EL1_ZEN_EL1EN | CPACR_EL1_ZEN_EL0EN) /* TCR EL1 Bit Definitions */ #define SYS_TCR_EL1_TCMA1 (BIT(58)) |