[PATCH] iommu/arm-smmu-v3: Fix L1 stream table index calculation for AmpereOne
Yang Shi
yang at os.amperecomputing.com
Tue Oct 1 14:32:52 PDT 2024
On 10/1/24 2:02 PM, Jason Gunthorpe wrote:
> On Tue, Oct 01, 2024 at 01:47:24PM -0700, Yang Shi wrote:
>> diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
>> b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
>> index 1e9952ca989f..de9f14293485 100644
>> --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
>> +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
>> @@ -235,6 +235,11 @@ static inline u32 arm_smmu_strtab_l2_idx(u32 sid)
>> return sid % STRTAB_NUM_L2_STES;
>> }
>>
>> +static inline unsigned int arm_smmu_strtab_max_sid(unsigned int sid_bits)
>> +{
> Can we take the smmu struct here instead of the int?
No problem.
>
> But yes, this looks OK
Thank you.
>
> Jason
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