Re: [PATCH] irqchip: Replace compared GIC version with ID_AA64PFR0_EL1_GIC_V4P1

From: Anshuman Khandual
Date: Thu Jul 25 2024 - 04:28:26 EST




On 7/24/24 20:06, Marc Zyngier wrote:
> On Wed, 24 Jul 2024 06:46:23 +0100,
> Anshuman Khandual <anshuman.khandual@xxxxxxx> wrote:
>>
>> Replace open encoding for GIC version code with ID_AA64PFR0_EL1_GIC_V4P1 in
>> gic_cpuif_has_vsgi().
>
> Please fix the subject format to say "irqchip/gic-v4.1".

Sure, will change as suggested.

>
>>
>> Cc: Marc Zyngier <maz@xxxxxxxxxx>
>> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
>> Cc: Will Deacon <will@xxxxxxxxxx>
>> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
>> Cc: linux-kernel@xxxxxxxxxxxxxxx
>> Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
>> ---
>> Applies after the following patch that fixes the given field in tools sysreg.
>>
>> https://lore.kernel.org/all/20240718215532.616447-1-rananta@xxxxxxxxxx/
>>
>> drivers/irqchip/irq-gic-v4.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
>> index ca32ac19d284..58c28895f8c4 100644
>> --- a/drivers/irqchip/irq-gic-v4.c
>> +++ b/drivers/irqchip/irq-gic-v4.c
>> @@ -97,7 +97,7 @@ bool gic_cpuif_has_vsgi(void)
>>
>> fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64PFR0_EL1_GIC_SHIFT);
>>
>> - return fld >= 0x3;
>> + return fld >= ID_AA64PFR0_EL1_GIC_V4P1;
>> }
>> #else
>> bool gic_cpuif_has_vsgi(void)
>
> Please repost this *once* the dependent patch is actually merged, so
> that we don't have to think of the dependencies.

Sure, will do that.

>
> With that:
>
> Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
>
> M.
>