[PATCH 00/26] coresight: next v4.13-rc3 · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 01/26] coresight: Correct buffer lost increment · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 02/26] coresight: etb10: Remove useless conversion to LE · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 03/26] coresight: Add barrier packet for synchronisation · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 04/26] coresight: etb10: Move etb_disable_hw() outside of lock · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 05/26] coresight: etm3x: Set synchronisation frequencty to TRM default · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 06/26] hwtracing: coresight: constify attribute_group structures. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 07/26] coresight: pmu: Adds return stack option to perf coresight pmu · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 08/26] coresight: ptm: Adds trace return stack option programming for PTM. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 09/26] coresight: etm4x: Adds trace return stack option programming for ETMv4. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 10/26] coresight replicator: Cleanup programmable replicator naming · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 11/26] coresight: Add support for reading 64bit registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 12/26] coresight: Use the new helper for defining registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 13/26] coresight tmc: Add helpers for accessing 64bit registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 14/26] coresight tmc: Expose DBA and AXICTL · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 15/26] coresight replicator: Expose replicator management registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 16/26] coresight tmc: Handle configuration types properly · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 17/26] coresight tmc etr: Add capabilitiy information · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 18/26] coresight tmc: Detect support for scatter gather · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 19/26] coresight tmc etr: Detect address width at runtime · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 20/26] coresight tmc etr: Cleanup AXICTL register handling · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 21/26] coresight tmc etr: Setup AXI cache encoding for read transfers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 22/26] coresight tmc: Support for save-restore in ETR · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 23/26] coresight tmc: Add support for Coresight SoC 600 TMC · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 24/26] coresight: Add support for Coresight SoC 600 components · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 25/26] perf: cs-etm: Fix ETMv4 CONFIGR entry in perf.data file · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 26/26] coresight: STM: Clean up __iomem type usage · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 00/26] coresight: next v4.13-rc3 · gregkh@linuxfoundation.org (Greg KH) · 2017-08-28

STALE3265d

[PATCH 05/26] coresight: etm3x: Set synchronisation frequencty to TRM default

From: mathieu.poirier@linaro.org (Mathieu Poirier)
Date: 2017-08-02 16:21:59
Subsystem: arm/coresight framework and drivers, hardware tracing facilities, the rest · Maintainers: Suzuki K Poulose, Alexander Shishkin, Linus Torvalds

Register ETMSYNCFR holds the number of by that need to be generated before
periodic synchronisation packets are inserted in the trace stream.  By
zeroing out the config structure, the current code effectively disable
periodic synchronization.

This patch simply initialise the recommended value for this register as
specified in the technical reference manual.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etm3x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index 93ee8fc539be..9d8bd4e36b32 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c

@@ -243,6 +243,8 @@ void etm_set_default(struct etm_config *config)
 	}
 
 	config->ctxid_mask = 0x0;
+	/* Setting default to 1024 as per TRM recommendation */
+	config->sync_freq = 0x400;
 }
 
 void etm_config_trace_mode(struct etm_config *config)

-- 
2.7.4