| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 18 Jul 2016 13:51:22 -0600
From: Mathieu Poirier <mathieu.poirier@...aro.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org, alexander.shishkin@...ux.intel.com,
Mathieu Poirier <mathieu.poirier@...aro.org>
Subject: [PATCH 01/10] coresight: etm-perf: pass struct perf_event to source::enable/disable()
With this commit [1] address range filter information is now found
in the struct hw_perf_event::addr_filters. As such pass the event
itself to the coresight_source::enable/disable() functions so that
both event attribute and filter can be accessible for configuration.
[1] 'commit 375637bc5249 ("perf/core: Introduce address range filtering")'
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 4 ++--
drivers/hwtracing/coresight/coresight-etm3x.c | 14 ++++++++------
drivers/hwtracing/coresight/coresight-etm4x.c | 19 +++++++++++--------
drivers/hwtracing/coresight/coresight-stm.c | 7 ++++---
drivers/hwtracing/coresight/coresight.c | 2 +-
include/linux/coresight.h | 5 +++--
6 files changed, 29 insertions(+), 22 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index 8fbb1dd9e243..78a1bc0013a2 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -283,7 +283,7 @@ static void etm_event_start(struct perf_event *event, int flags)
event->hw.state = 0;
/* Finally enable the tracer */
- if (source_ops(csdev)->enable(csdev, &event->attr, CS_MODE_PERF))
+ if (source_ops(csdev)->enable(csdev, event, CS_MODE_PERF))
goto fail_end_stop;
out:
@@ -316,7 +316,7 @@ static void etm_event_stop(struct perf_event *event, int mode)
return;
/* stop tracer */
- source_ops(csdev)->disable(csdev);
+ source_ops(csdev)->disable(csdev, event);
/* tell the core */
event->hw.state = PERF_HES_STOPPED;
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index d83ab82672e4..38828bd8d332 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -309,9 +309,10 @@ void etm_config_trace_mode(struct etm_config *config)
#define ETM3X_SUPPORTED_OPTIONS (ETMCR_CYC_ACC | ETMCR_TIMESTAMP_EN)
static int etm_parse_event_config(struct etm_drvdata *drvdata,
- struct perf_event_attr *attr)
+ struct perf_event *event)
{
struct etm_config *config = &drvdata->config;
+ struct perf_event_attr *attr = &event->attr;
if (!attr)
return -EINVAL;
@@ -457,7 +458,7 @@ static int etm_trace_id(struct coresight_device *csdev)
}
static int etm_enable_perf(struct coresight_device *csdev,
- struct perf_event_attr *attr)
+ struct perf_event *event)
{
struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -465,7 +466,7 @@ static int etm_enable_perf(struct coresight_device *csdev,
return -EINVAL;
/* Configure the tracer based on the session's specifics */
- etm_parse_event_config(drvdata, attr);
+ etm_parse_event_config(drvdata, event);
/* And enable it */
etm_enable_hw(drvdata);
@@ -503,7 +504,7 @@ err:
}
static int etm_enable(struct coresight_device *csdev,
- struct perf_event_attr *attr, u32 mode)
+ struct perf_event *event, u32 mode)
{
int ret;
u32 val;
@@ -520,7 +521,7 @@ static int etm_enable(struct coresight_device *csdev,
ret = etm_enable_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = etm_enable_perf(csdev, attr);
+ ret = etm_enable_perf(csdev, event);
break;
default:
ret = -EINVAL;
@@ -600,7 +601,8 @@ static void etm_disable_sysfs(struct coresight_device *csdev)
dev_info(drvdata->dev, "ETM tracing disabled\n");
}
-static void etm_disable(struct coresight_device *csdev)
+static void etm_disable(struct coresight_device *csdev,
+ struct perf_event *event)
{
u32 mode;
struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 462f0dc15757..1fe1f0e86daf 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -193,9 +193,10 @@ static void etm4_enable_hw(void *info)
}
static int etm4_parse_event_config(struct etmv4_drvdata *drvdata,
- struct perf_event_attr *attr)
+ struct perf_event *event)
{
struct etmv4_config *config = &drvdata->config;
+ struct perf_event_attr *attr = &event->attr;
if (!attr)
return -EINVAL;
@@ -229,7 +230,7 @@ static int etm4_parse_event_config(struct etmv4_drvdata *drvdata,
}
static int etm4_enable_perf(struct coresight_device *csdev,
- struct perf_event_attr *attr)
+ struct perf_event *event)
{
struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -237,7 +238,7 @@ static int etm4_enable_perf(struct coresight_device *csdev,
return -EINVAL;
/* Configure the tracer based on the session's specifics */
- etm4_parse_event_config(drvdata, attr);
+ etm4_parse_event_config(drvdata, event);
/* And enable it */
etm4_enable_hw(drvdata);
@@ -272,7 +273,7 @@ err:
}
static int etm4_enable(struct coresight_device *csdev,
- struct perf_event_attr *attr, u32 mode)
+ struct perf_event *event, u32 mode)
{
int ret;
u32 val;
@@ -289,7 +290,7 @@ static int etm4_enable(struct coresight_device *csdev,
ret = etm4_enable_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = etm4_enable_perf(csdev, attr);
+ ret = etm4_enable_perf(csdev, event);
break;
default:
ret = -EINVAL;
@@ -324,7 +325,8 @@ static void etm4_disable_hw(void *info)
dev_dbg(drvdata->dev, "cpu: %d disable smp call done\n", drvdata->cpu);
}
-static int etm4_disable_perf(struct coresight_device *csdev)
+static int etm4_disable_perf(struct coresight_device *csdev,
+ struct perf_event *event)
{
struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -360,7 +362,8 @@ static void etm4_disable_sysfs(struct coresight_device *csdev)
dev_info(drvdata->dev, "ETM tracing disabled\n");
}
-static void etm4_disable(struct coresight_device *csdev)
+static void etm4_disable(struct coresight_device *csdev,
+ struct perf_event *event)
{
u32 mode;
struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -379,7 +382,7 @@ static void etm4_disable(struct coresight_device *csdev)
etm4_disable_sysfs(csdev);
break;
case CS_MODE_PERF:
- etm4_disable_perf(csdev);
+ etm4_disable_perf(csdev, event);
break;
}
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 73be58a11e4f..d8fee8fff3da 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -196,7 +196,7 @@ static void stm_enable_hw(struct stm_drvdata *drvdata)
}
static int stm_enable(struct coresight_device *csdev,
- struct perf_event_attr *attr, u32 mode)
+ struct perf_event *event, u32 mode)
{
u32 val;
struct stm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -258,7 +258,8 @@ static void stm_disable_hw(struct stm_drvdata *drvdata)
stm_hwevent_disable_hw(drvdata);
}
-static void stm_disable(struct coresight_device *csdev)
+static void stm_disable(struct coresight_device *csdev,
+ struct perf_event *event)
{
struct stm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
@@ -353,7 +354,7 @@ static void stm_generic_unlink(struct stm_data *stm_data,
if (!drvdata || !drvdata->csdev)
return;
- stm_disable(drvdata->csdev);
+ stm_disable(drvdata->csdev, NULL);
}
static long stm_generic_set_options(struct stm_data *stm_data,
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 508532b3fcac..60dff8915822 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -257,7 +257,7 @@ static void coresight_disable_source(struct coresight_device *csdev)
{
if (atomic_dec_return(csdev->refcnt) == 0) {
if (source_ops(csdev)->disable) {
- source_ops(csdev)->disable(csdev);
+ source_ops(csdev)->disable(csdev, NULL);
csdev->enable = false;
}
}
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 385d62e64abb..2a5982c37dfb 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -232,8 +232,9 @@ struct coresight_ops_source {
int (*cpu_id)(struct coresight_device *csdev);
int (*trace_id)(struct coresight_device *csdev);
int (*enable)(struct coresight_device *csdev,
- struct perf_event_attr *attr, u32 mode);
- void (*disable)(struct coresight_device *csdev);
+ struct perf_event *event, u32 mode);
+ void (*disable)(struct coresight_device *csdev,
+ struct perf_event *event);
};
struct coresight_ops {
--
2.7.4
Powered by blists - more mailing lists