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linux/drivers/hwtracing/coresight
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Leo Yan f36dec8da1 coresight: tmc-etr: Use perf_output_handle::head for AUX ring buffer 
When enable the Arm CoreSight PMU event, the context for AUX ring buffer
is prepared in the structure perf_output_handle, and its field "head"
points the head of the AUX ring buffer and it is updated after filling
AUX trace data into buffer.

Current code uses an extra field etr_perf_buffer::head to maintain the
header for the AUX ring buffer which is not necessary; alternatively,
it's better to directly use perf_output_handle::head.

This patch removes the field etr_perf_buffer::head and directly uses
perf_output_handle::head for the head of AUX ring buffer.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210912125748.2816606-2-leo.yan@linaro.org
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2021-10-27 11:44:47 -06:00
..
coresight-catu.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-catu.h coresight: tmc-etr: Add function to register catu ops 2020-09-28 19:47:42 +02:00
coresight-cfg-afdo.c coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-cfg-preload.c coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-cfg-preload.h coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-config.c coresight: config: Add configuration and feature generic functions 2021-08-18 22:33:27 +02:00
coresight-config.h coresight: syscfg: Add API to activate and enable configurations 2021-08-18 22:33:28 +02:00
coresight-core.c coresight: syscfg: Initial coresight system configuration 2021-08-18 22:33:27 +02:00
coresight-cpu-debug.c coresight: cpu-debug: Control default behavior via Kconfig 2021-10-27 11:44:30 -06:00
coresight-cti-core.c coresight: cti: Correct the parameter for pm_runtime_put 2021-10-27 11:44:26 -06:00
coresight-cti-platform.c coresight: cti: Reduce scope for the variable 'cs_fwnode' in cti_plat_create_connection() 2021-02-04 17:00:32 +01:00
coresight-cti-sysfs.c coresight: cti: Initialize dynamic sysfs attributes 2020-10-29 20:10:25 +01:00
coresight-cti.h coresight: Include required headers in C files 2020-05-19 16:31:18 +02:00
coresight-etb10.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-etm-cp14.c
coresight-etm-perf.c coresight: etm-perf: Update to activate selected configuration 2021-08-18 22:33:28 +02:00
coresight-etm-perf.h coresight: etm-perf: Update to activate selected configuration 2021-08-18 22:33:28 +02:00
coresight-etm.h
coresight-etm3x-core.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-etm3x-sysfs.c
coresight-etm4x-cfg.c coresight: etm4x: Add complex configuration handlers to etmv4 2021-08-18 22:33:28 +02:00
coresight-etm4x-cfg.h coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-etm4x-core.c coresight: etm4x: Add complex configuration handlers to etmv4 2021-08-18 22:33:28 +02:00
coresight-etm4x-sysfs.c coresight: etm4x: Add complex configuration handlers to etmv4 2021-08-18 22:33:28 +02:00
coresight-etm4x.h coresight: ete: Add support for ETE tracing 2021-04-06 16:05:38 -06:00
coresight-funnel.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-platform.c coresight: Do not scan for graph if none is present 2021-04-06 16:05:37 -06:00
coresight-priv.h coresight: core: Add support for dedicated percpu sinks 2021-04-06 16:05:38 -06:00
coresight-replicator.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-stm.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-syscfg-configfs.c coresight: syscfg: Add initial configfs support 2021-08-18 22:33:28 +02:00
coresight-syscfg-configfs.h coresight: syscfg: Add initial configfs support 2021-08-18 22:33:28 +02:00
coresight-syscfg.c coresight: syscfg: Fix compiler warning 2021-09-14 09:03:16 +02:00
coresight-syscfg.h coresight: syscfg: Add initial configfs support 2021-08-18 22:33:28 +02:00
coresight-sysfs.c coresight: Export global symbols 2020-09-28 19:47:40 +02:00
coresight-tmc-core.c coresight: tmc: Configure AXI write burst size 2021-10-27 11:44:34 -06:00
coresight-tmc-etf.c coresight: tmc-etf: Add comment for store ordering 2021-10-27 11:44:43 -06:00
coresight-tmc-etr.c coresight: tmc-etr: Use perf_output_handle::head for AUX ring buffer 2021-10-27 11:44:47 -06:00
coresight-tmc.h coresight: tmc: Configure AXI write burst size 2021-10-27 11:44:34 -06:00
coresight-tpiu.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-trbe.c coresight: trbe: Fix return value check in arm_trbe_register_coresight_cpu() 2021-04-13 09:46:27 -06:00
coresight-trbe.h coresight: sink: Add TRBE driver 2021-04-06 16:05:38 -06:00
Kconfig coresight: cpu-debug: Control default behavior via Kconfig 2021-10-27 11:44:30 -06:00
Makefile coresight: syscfg: Add initial configfs support 2021-08-18 22:33:28 +02:00