[PATCH V6 12/26] coresight: etm3x: consolidating initial config

Mathieu Poirier
2015-12-03T21:05:48Z

There is really no point in having two functions to take care
of doing the initials tracer configuration. As such moving
everything to 'etm_set_default()'.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
drivers/hwtracing/coresight/coresight-etm3x.c | 37 ++++++++++-----------------
1 file changed, 14 insertions(+), 23 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index cfaf8e840bd6..14927da0f6ba 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -41,7 +41,6 @@ module_param_named(boot_enable, boot_enable, int, S_IRUGO);
/* The number of ETM/PTM currently registered */
static int etm_count;
static struct etm_drvdata *etmdrvdata[NR_CPUS];
-static void etm_init_default_data(struct etm_config *config);

/*
* Memory mapped writes to clear os lock are not supported on some processors
@@ -199,7 +198,7 @@ struct etm_config *get_etm_config(struct etm_drvdata *drvdata)
return NULL;

/* Set default config */
- etm_init_default_data(config);
+ etm_set_default(config);
drvdata->config = config;
out:
return drvdata->config;
@@ -212,6 +211,19 @@ void etm_set_default(struct etm_config *config)
if (WARN_ON_ONCE(!config))
return;

+ /*
+ * Taken verbatim from the TRM:
+ *
+ * To trace all memory:
+ * set bit [24] in register 0x009, the ETMTECR1, to 1
+ * set all other bits in register 0x009, the ETMTECR1, to 0
+ * set all bits in register 0x007, the ETMTECR2, to 0
+ * set register 0x008, the ETMTEEVR, to 0x6F (TRUE).
+ */
+ config->enable_ctrl1 = BIT(24);
+ config->enable_ctrl2 = 0x0;
+ config->enable_event = ETM_HARD_WIRE_RES_A;
+
config->trigger_event = ETM_DEFAULT_EVENT_VAL;
config->enable_event = ETM_HARD_WIRE_RES_A;

@@ -606,27 +618,6 @@ static void etm_init_arch_data(void *info)
CS_LOCK(drvdata->base);
}

-static void etm_init_default_data(struct etm_config *config)
-{
- if (WARN_ON_ONCE(!config))
- return;
-
- etm_set_default(config);
-
- /*
- * Taken verbatim from the TRM:
- *
- * To trace all memory:
- * set bit [24] in register 0x009, the ETMTECR1, to 1
- * set all other bits in register 0x009, the ETMTECR1, to 0
- * set all bits in register 0x007, the ETMTECR2, to 0
- * set register 0x008, the ETMTEEVR, to 0x6F (TRUE).
- */
- config->enable_ctrl1 = BIT(24);
- config->enable_ctrl2 = 0x0;
- config->enable_event = ETM_HARD_WIRE_RES_A;
-}
-
static void etm_init_trace_id(struct etm_drvdata *drvdata)
{
/*
--
2.1.4