linux/drivers/hwtracing
Suzuki K Poulose ab5ca6268a 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
2023-06-07 12:07:10 +01:00
..
coresight coresight: etm4x: Match all ETM4 instances based on DEVARCH and DEVTYPE 2023-06-07 12:07:10 +01:00
intel_th Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
ptt hwtracing: hisi_ptt: Only add the supported devices to the filters list 2023-01-19 10:06:35 +00:00
stm - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
Kconfig hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device 2022-09-08 16:26:17 -06:00