Re: [PATCH v5 02/15] arm64: errata: Add detection for TRBE overwrite in FILL mode

Suzuki K Poulose
2021-10-19T11:15:55Z

On 19/10/2021 12:04, Will Deacon wrote:
> On Thu, Oct 14, 2021 at 11:31:12PM +0100, Suzuki K Poulose wrote:
>> Arm Neoverse-N2 and the Cortex-A710 cores are affected
>> by a CPU erratum where the TRBE will overwrite the trace buffer
>> in FILL mode. The TRBE doesn't stop (as expected in FILL mode)
>> when it reaches the limit and wraps to the base to continue
>> writing upto 3 cache lines. This will overwrite any trace that
>> was written previously.
>>
>> Add the Neoverse-N2 erratumi(#2139208) and Cortex-A710 erratum
>> (#2119858) to the detection logic.
>
> Weird typo and double space in this sentence.

I have fixed this now.

Thanks
Suzuki