[PATCH] arm64/cpufeature: Use ARM64_CPUID_FIELD() to match EVT

[PATCH] arm64/cpufeature: Use ARM64_CPUID_FIELD() to match EVT

[Mark Brown]

The recently added Enhanced Virtualization Traps cpufeature does not use
the ARM64_CPUID_FIELDS() helper, convert it to do so. No functional
change.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 arch/arm64/kernel/cpufeature.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index f9d456fe132d..bcb006390e55 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2708,12 +2708,8 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
 		.desc = "Enhanced Virtualization Traps",
 		.capability = ARM64_HAS_EVT,
 		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
-		.sys_reg = SYS_ID_AA64MMFR2_EL1,
-		.sign = FTR_UNSIGNED,
-		.field_pos = ID_AA64MMFR2_EL1_EVT_SHIFT,
-		.field_width = 4,
-		.min_field_value = ID_AA64MMFR2_EL1_EVT_IMP,
 		.matches = has_cpuid_feature,
+		ARM64_CPUID_FIELDS(ID_AA64MMFR2_EL1, EVT, IMP)
 	},
 	{},
 };

---
base-commit: fdf0eaf11452d72945af31804e2a1048ee1b574c
change-id: 20230717-arm64-evt-cpuid-helper-5477a7c469f3

Best regards,
-- 
Mark Brown <broonie@kernel.org>


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Re: [PATCH] arm64/cpufeature: Use ARM64_CPUID_FIELD() to match EVT

[Zenghui Yu]

On 2023/7/19 03:45, Mark Brown wrote:
> The recently added Enhanced Virtualization Traps cpufeature does not use
> the ARM64_CPUID_FIELDS() helper, convert it to do so. No functional
> change.
> 
> Signed-off-by: Mark Brown <broonie@kernel.org>
> ---
>  arch/arm64/kernel/cpufeature.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index f9d456fe132d..bcb006390e55 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -2708,12 +2708,8 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
>  		.desc = "Enhanced Virtualization Traps",
>  		.capability = ARM64_HAS_EVT,
>  		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
> -		.sys_reg = SYS_ID_AA64MMFR2_EL1,
> -		.sign = FTR_UNSIGNED,
> -		.field_pos = ID_AA64MMFR2_EL1_EVT_SHIFT,
> -		.field_width = 4,
> -		.min_field_value = ID_AA64MMFR2_EL1_EVT_IMP,
>  		.matches = has_cpuid_feature,
> +		ARM64_CPUID_FIELDS(ID_AA64MMFR2_EL1, EVT, IMP)
>  	},
>  	{},
>  };

Reviewed-by: Zenghui Yu <zenghui.yu@linux.dev>

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Re: [PATCH] arm64/cpufeature: Use ARM64_CPUID_FIELD() to match EVT

[Will Deacon]

On Tue, 18 Jul 2023 20:45:44 +0100, Mark Brown wrote:
> The recently added Enhanced Virtualization Traps cpufeature does not use
> the ARM64_CPUID_FIELDS() helper, convert it to do so. No functional
> change.
> 
> 

Applied to arm64 (for-next/cpufeature), thanks!

[1/1] arm64/cpufeature: Use ARM64_CPUID_FIELD() to match EVT
      https://git.kernel.org/arm64/c/ce33cea5d833

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev

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