diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2023-06-05 16:30:30 +0300 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2023-06-07 14:07:10 +0300 |
| commit | ab5ca6268afcc470e7c9b2d66b0eb9f178755260 (patch) | |
| tree | 937591f49a04b6bb8215ef2ea5961d5be7691961 /drivers/hwtracing/coresight/coresight-etm4x-core.c | |
| parent | c5f231f1a7e18d28e02b282d33541d31358360e4 (diff) | |
| download | linux-ab5ca6268afcc470e7c9b2d66b0eb9f178755260.tar.xz | |
coresight: etm4x: Match all ETM4 instances based on DEVARCH and DEVTYPE
Instead of adding the PIDs forever to the list for the new CPUs, let us detect
a component to be ETMv4 based on the CoreSight CID, DEVTYPE=PE_TRACE and
DEVARCH=ETMv4. This is already done for some of the ETMs. We can extend the PID
matching to match the PIDR2:JEDEC, BIT[3], which must be 1 (RAO) always.
Link: https://lkml.kernel.org/r/20230317030501.1811905-1-anshuman.khandual@arm.com
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: frowand.list@gmail.com
Cc: linux@armlinux.org.uk
Cc: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
[ Fixed typo in the description RA0 => RAO ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230605133031.1827626-1-suzuki.poulose@arm.com
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-etm4x-core.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x-core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 5e9edbc5e724..7e307022303a 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -2257,6 +2257,11 @@ static const struct amba_id etm4_ids[] = { 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 */ + /* + * Match all PIDs with ETM4 DEVARCH. No need for adding any of the new + * CPUs to the list here. + */ + CS_AMBA_MATCH_ALL_UCI(uci_id_etm4), {}, }; |