Re: [PATCH V4 1/7] arm64/perf: Add BRBE registers and fields

From: Anshuman Khandual
Date: Tue Oct 18 2022 - 23:01:30 EST




On 10/18/22 19:26, Mark Brown wrote:
> On Mon, Oct 17, 2022 at 11:27:07AM +0530, Anshuman Khandual wrote:
>
> I spotted one typo below but otherwise this looks good!
>
>> +# This is just a dummy register declaration to get all common field masks and
>> +# shifts for accessing given BRBINF contents.
>> +Sysreg BRBINF_EL1 2 1 8 0 0
>
> This seems reasonable to me, others may disagree.
>
>> +Sysreg BRBCR_EL1 2 1 9 0 0
>> +Res0 63:24
>> +Field 23 EXCEPTION
>> +Field 22 ERTN
>> +Res0 21:9
>> +Field 8 FZP
>> +Res0 7
>> +Enum 6:5 TS
>> + 0b1 VIRTUAL
>
> I'd have expected this to be written as 0b01. Doesn't make any
> practical difference though.

Sure, will change.

>
>> +Sysreg BRBFCR_EL1 2 1 9 0 1
>
>> +Field 16 EnL
>
> This is "EnI" in DDI0487I.a.

Okay, will replace "EnL" with "EnI" instead.