Re: [PATCH 1/2] coresight: etm4x: Add support for Qualcomm SC7180 SoC

[Sai Prakash Ranjan]

Hi Suzuki,

On 2020-03-23 15:25, Suzuki K Poulose wrote:
> On 03/20/2020 07:44 AM, Sai Prakash Ranjan wrote:
> > Add ETM Peripheral IDs for Qualcomm SC7180 SoC. It has
> > 2 big CPU cores based on Cortex-A76 and 6 LITTLE CPU
> > cores based on Cortex-A55.
> >
> > Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx>
> > ---
> >   drivers/hwtracing/coresight/coresight-etm4x.c | 2 ++
> >   1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c 
> > b/drivers/hwtracing/coresight/coresight-etm4x.c
> > index a90d757f7043..a153a65c4c5b 100644
> > --- a/drivers/hwtracing/coresight/coresight-etm4x.c
> > +++ b/drivers/hwtracing/coresight/coresight-etm4x.c
> > @@ -1556,6 +1556,8 @@ static const struct amba_id etm4_ids[] = {
> >   	CS_AMBA_UCI_ID(0x000f0211, uci_id_etm4),/* Qualcomm Kryo */
> >   	CS_AMBA_ID(0x000bb802),			/* Qualcomm Kryo 385 Cortex-A55 */
> >   	CS_AMBA_ID(0x000bb803),			/* Qualcomm Kryo 385 Cortex-A75 */
> > +	CS_AMBA_ID(0x000bb805),			/* Qualcomm Kryo 4XX Cortex-A55 */
> > +	CS_AMBA_ID(0x000bb804),			/* Qualcomm Kryo 4XX Cortex-A76 */
>
> Does the DEVARCH indicate that it is an ETMv4 ? (It should !) Please
> could we enforce the UCI_ID check for these components ? The
> moment you add CTI components to your board this could conflict with
> them unless we check the UCI_ID for ETMv4.

Yes I got these IDs through devarch and it does indicate that it is 
ETMv4.2.

devname=7040000.etm dev->type=0x13 devarch=0x47724a13
devname=7140000.etm dev->type=0x13 devarch=0x47724a13
devname=7240000.etm dev->type=0x13 devarch=0x47724a13
devname=7340000.etm dev->type=0x13 devarch=0x47724a13
devname=7440000.etm dev->type=0x13 devarch=0x47724a13
devname=7540000.etm dev->type=0x13 devarch=0x47724a13
devname=7640000.etm dev->type=0x13 devarch=0x47724a13
devname=7740000.etm dev->type=0x13 devarch=0x47724a13

I will add the UCI_ID as you suggested in next version.

Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a 
member
of Code Aurora Forum, hosted by The Linux Foundation