From: Yang Shi <yang@os.amperecomputing.com>
AmpereOne supports BBML2 without conflict abort, add to the allow list.
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
---
arch/arm64/kernel/cpufeature.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 9ad065f15f1d..b93f4ee57176 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2234,6 +2234,8 @@ static bool has_bbml2_noabort(const struct arm64_cpu_capabilities *caps, int sco
static const struct midr_range supports_bbml2_noabort_list[] = {
MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf),
MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf),
+ MIDR_ALL_VERSIONS(MIDR_AMPERE1),
+ MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
{}
};
--
2.43.0On Fri, Aug 29, 2025 at 12:52:43PM +0100, Ryan Roberts wrote: > From: Yang Shi <yang@os.amperecomputing.com> > > AmpereOne supports BBML2 without conflict abort, add to the allow list. > > Signed-off-by: Yang Shi <yang@os.amperecomputing.com> > Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org> > Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Here it is again: Acked-by: Catalin Marinas <catalin.marinas@arm.com>
On 9/3/25 10:24 AM, Catalin Marinas wrote: > On Fri, Aug 29, 2025 at 12:52:43PM +0100, Ryan Roberts wrote: >> From: Yang Shi <yang@os.amperecomputing.com> >> >> AmpereOne supports BBML2 without conflict abort, add to the allow list. >> >> Signed-off-by: Yang Shi <yang@os.amperecomputing.com> >> Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org> >> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> > Here it is again: > > Acked-by: Catalin Marinas <catalin.marinas@arm.com> Thank you! Yang
On 8/29/25 4:52 AM, Ryan Roberts wrote:
> From: Yang Shi <yang@os.amperecomputing.com>
>
> AmpereOne supports BBML2 without conflict abort, add to the allow list.
>
> Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
> Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org>
> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
I saw Catalin gave Reviewed-by to v6 of this patch, I think we can keep it.
Yang
> ---
> arch/arm64/kernel/cpufeature.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index 9ad065f15f1d..b93f4ee57176 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -2234,6 +2234,8 @@ static bool has_bbml2_noabort(const struct arm64_cpu_capabilities *caps, int sco
> static const struct midr_range supports_bbml2_noabort_list[] = {
> MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf),
> MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf),
> + MIDR_ALL_VERSIONS(MIDR_AMPERE1),
> + MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
> {}
> };
>
On 29/08/2025 23:08, Yang Shi wrote:
>
>
> On 8/29/25 4:52 AM, Ryan Roberts wrote:
>> From: Yang Shi <yang@os.amperecomputing.com>
>>
>> AmpereOne supports BBML2 without conflict abort, add to the allow list.
>>
>> Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
>> Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org>
>> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
>
> I saw Catalin gave Reviewed-by to v6 of this patch, I think we can keep it.
Sorry I missed that. I see Catalin and Rb'ed again.
>
> Yang
>
>> ---
>> arch/arm64/kernel/cpufeature.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
>> index 9ad065f15f1d..b93f4ee57176 100644
>> --- a/arch/arm64/kernel/cpufeature.c
>> +++ b/arch/arm64/kernel/cpufeature.c
>> @@ -2234,6 +2234,8 @@ static bool has_bbml2_noabort(const struct
>> arm64_cpu_capabilities *caps, int sco
>> static const struct midr_range supports_bbml2_noabort_list[] = {
>> MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf),
>> MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf),
>> + MIDR_ALL_VERSIONS(MIDR_AMPERE1),
>> + MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
>> {}
>> };
>>
>
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