lkml.org 
[lkml]   [2019]   [Jan]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCHv7 5/6] coresight: etm4x: Add ETM PIDs for SDM845 and MSM8996
Date
Instead of overriding the peripheral id(PID) check in AMBA
by hardcoding them in DT, add the PIDs to the ETM4x driver.
Here we use Unique Component Identifier(UCI) for MSM8996
since the ETM and CPU debug module shares the same PIDs.
SDM845 does not support CPU debug module.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>

---
For testing, all dependent patches are in below tree:
* https://github.com/saiprakash-ranjan/linux/tree/coresight-next

This patch depends on UCI support by Mike Leach in below link:
* https://lore.kernel.org/lkml/20190130234051.2294-1-mike.leach@linaro.org/
---
drivers/hwtracing/coresight/coresight-etm4x.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 08ce37c9475d..5819ced2beec 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -1078,11 +1078,15 @@ static struct amba_cs_uci_id uci_id_etm4[] = {
};

static const struct amba_id etm4_ids[] = {
- CS_AMBA_ID(0x000bb95d), /* Cortex-A53 */
- CS_AMBA_ID(0x000bb95e), /* Cortex-A57 */
- CS_AMBA_ID(0x000bb95a), /* Cortex-A72 */
- CS_AMBA_ID(0x000bb959), /* Cortex-A73 */
- CS_AMBA_UCI_ID(0x000bb9da, uci_id_etm4), /* Cortex-A35 */
+ CS_AMBA_ID(0x000bb95d), /* Cortex-A53 */
+ CS_AMBA_ID(0x000bb95e), /* Cortex-A57 */
+ CS_AMBA_ID(0x000bb95a), /* Cortex-A72 */
+ CS_AMBA_ID(0x000bb959), /* Cortex-A73 */
+ CS_AMBA_UCI_ID(0x000bb9da, uci_id_etm4),/* Cortex-A35 */
+ CS_AMBA_UCI_ID(0x000f0205, uci_id_etm4),/* Qualcomm Kryo */
+ 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 */
{},
};

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
\
 
 \ /
  Last update: 2019-02-01 01:55    [W:0.131 / U:15.300 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site