[PATCH v4 7/9] arm64: cpufeature: Track user visible fields

Suzuki K Poulose Suzuki.Poulose at arm.com
Tue Jan 10 06:25:57 PST 2017


On 10/01/17 14:24, Catalin Marinas wrote:
> On Mon, Jan 09, 2017 at 05:28:30PM +0000, Suzuki K. Poulose wrote:
>> Changes since V3:
>>  - Mark ID_AA64ISAR0_EL1:RDM visible
> [...]
>>  static const struct arm64_ftr_bits ftr_id_aa64isar0[] = {
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_RDM_SHIFT, 4, 0),
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_ATOMICS_SHIFT, 4, 0),
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_CRC32_SHIFT, 4, 0),
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_SHA2_SHIFT, 4, 0),
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_SHA1_SHIFT, 4, 0),
>> -	ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_AES_SHIFT, 4, 0),
>> +	ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_RDM_SHIFT, 4, 0),
>
> As I said in an earlier reply, I'd like the RDM exposing to come
> together with a patch presenting the corresponding HWCAP bit. But it's
> fine by me if you add the HWCAP separately from this patch, in which
> case my ack still stands.

Catalin,

Yes, I have a separate patch for that.

Thanks
Suzuki




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