Messages in this thread | | | Date | Wed, 25 May 2022 18:10:51 +0300 | Subject | Re: [PATCH v2] coresight: etm4x: Add Support for HiSilicon ETM device | From | Alexei Budankov <> |
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Hi Qi Liu,
On 13.08.2020 15:59, Qi Liu wrote: > Add ETMv4 periperhal ID for HiSilicon Hip08 and Hip09 platform. Hip08 > contains ETMv4.2 device and Hip09 contains ETMv4.5 device. > > Signed-off-by: Qi Liu <liuqi115@huawei.com> > --- > drivers/hwtracing/coresight/coresight-etm4x.c | 2 ++ > 1 file changed, 2 insertions(+)
Thanks for your patch. I would like to test HiSilicon ETM device feature on Kunpeng 920 based server. I applied the patch and booted the kernel with the changes. However I don't see any device files neither here: /sys/bus/coresight/devices/ nor here: /sys/bus/event_source/devices/cs_etm/sinks/ What should a user expect new in os with this patch added?
Thanks, Alexei
> > diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c > index 6d7d216..7797a57 100644 > --- a/drivers/hwtracing/coresight/coresight-etm4x.c > +++ b/drivers/hwtracing/coresight/coresight-etm4x.c > @@ -1587,6 +1587,8 @@ static const struct amba_id etm4_ids[] = { > CS_AMBA_UCI_ID(0x000bb805, uci_id_etm4),/* Qualcomm Kryo 4XX Cortex-A55 */ > CS_AMBA_UCI_ID(0x000bb804, uci_id_etm4),/* Qualcomm Kryo 4XX Cortex-A76 */ > CS_AMBA_UCI_ID(0x000cc0af, uci_id_etm4),/* Marvell ThunderX2 */ > + CS_AMBA_UCI_ID(0x000b6d01, uci_id_etm4),/* HiSilicon-Hip08 */ > + CS_AMBA_UCI_ID(0x000b6d02, uci_id_etm4),/* HiSilicon-Hip09 */ > {}, > }; > > -- > 2.8.1
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