Thread (12 messages) 12 messages, 3 authors, 2020-04-09

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

From: Sai Prakash Ranjan <hidden>
Date: 2020-03-23 13:17:22
Also in: linux-arm-msm, lkml

On 2020-03-23 17:09, Suzuki K Poulose wrote:
On 03/23/2020 11:32 AM, Sai Prakash Ranjan wrote:
quoted
Hi Suzuki,

On 2020-03-23 15:25, Suzuki K Poulose wrote:
quoted
On 03/20/2020 07:44 AM, Sai Prakash Ranjan wrote:
quoted
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 <redacted>
---
  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.
If you do have access to the Kryo 385 variants, please fix
them as well.
Sure, will do.

Thanks,
Sai

-- 
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