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Message-Id: <20250211062021.7013-1-jie.gan@oss.qualcomm.com>
Date: Tue, 11 Feb 2025 14:20:21 +0800
From: Jie Gan <jie.gan@....qualcomm.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach <mike.leach@...aro.org>,
James Clark <james.clark@...aro.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Tingwei Zhang <quic_tingweiz@...cinc.com>,
Jinlong Mao <quic_jinlmao@...cinc.com>, coresight@...ts.linaro.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org
Subject: [PATCH] Coresight: Improve the method for passing through perf handle
From: James Clark <james.clark@...aro.org>
Currently, the perf handle is being passed to the sink device as a void
parameter with additional type conversion. Improve the method for
passing perf handle parameter to make the code more readable.
Signed-off-by: James Clark <james.clark@...aro.org>
Signed-off-by: Jie Gan <jie.gan@....qualcomm.com>
---
prerequisite-message-id: <20250207064213.2314482-5-quic_jiegan@...cinc.com>
---
drivers/hwtracing/coresight/coresight-core.c | 8 ++++----
drivers/hwtracing/coresight/coresight-dummy.c | 2 +-
drivers/hwtracing/coresight/coresight-etb10.c | 7 +++----
drivers/hwtracing/coresight/coresight-priv.h | 2 +-
drivers/hwtracing/coresight/coresight-tmc-etf.c | 8 ++++----
drivers/hwtracing/coresight/coresight-tmc-etr.c | 11 +++++------
drivers/hwtracing/coresight/coresight-tmc.h | 2 +-
drivers/hwtracing/coresight/coresight-tpiu.c | 2 +-
drivers/hwtracing/coresight/coresight-trbe.c | 3 +--
drivers/hwtracing/coresight/ultrasoc-smb.c | 7 +++----
include/linux/coresight.h | 2 +-
11 files changed, 25 insertions(+), 29 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index 3bdd6ebd4b6e..9246b46bdc3b 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -272,9 +272,9 @@ void coresight_add_helper(struct coresight_device *csdev,
EXPORT_SYMBOL_GPL(coresight_add_helper);
static int coresight_enable_sink(struct coresight_device *csdev,
- enum cs_mode mode, void *data)
+ enum cs_mode mode, struct perf_output_handle *handle)
{
- return sink_ops(csdev)->enable(csdev, mode, data);
+ return sink_ops(csdev)->enable(csdev, mode, handle);
}
static void coresight_disable_sink(struct coresight_device *csdev)
@@ -448,7 +448,7 @@ static int coresight_enable_helpers(struct coresight_device *csdev,
}
int coresight_enable_path(struct coresight_path *path, enum cs_mode mode,
- void *sink_data)
+ struct perf_output_handle *handle)
{
int ret = 0;
u32 type;
@@ -478,7 +478,7 @@ int coresight_enable_path(struct coresight_path *path, enum cs_mode mode,
switch (type) {
case CORESIGHT_DEV_TYPE_SINK:
- ret = coresight_enable_sink(csdev, mode, sink_data);
+ ret = coresight_enable_sink(csdev, mode, handle);
/*
* Sink is the first component turned on. If we
* failed to enable the sink, there are no components
diff --git a/drivers/hwtracing/coresight/coresight-dummy.c b/drivers/hwtracing/coresight/coresight-dummy.c
index d9a811d44885..42de46949d73 100644
--- a/drivers/hwtracing/coresight/coresight-dummy.c
+++ b/drivers/hwtracing/coresight/coresight-dummy.c
@@ -51,7 +51,7 @@ static int dummy_source_trace_id(struct coresight_device *csdev, __maybe_unused
}
static int dummy_sink_enable(struct coresight_device *csdev, enum cs_mode mode,
- void *data)
+ struct perf_output_handle *handle)
{
dev_dbg(csdev->dev.parent, "Dummy sink enabled\n");
diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index aea9ac9c4bd0..e373b0f590bf 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -167,13 +167,12 @@ static int etb_enable_sysfs(struct coresight_device *csdev)
return ret;
}
-static int etb_enable_perf(struct coresight_device *csdev, void *data)
+static int etb_enable_perf(struct coresight_device *csdev, struct perf_output_handle *handle)
{
int ret = 0;
pid_t pid;
unsigned long flags;
struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
- struct perf_output_handle *handle = data;
struct cs_buffers *buf = etm_perf_sink_config(handle);
spin_lock_irqsave(&drvdata->spinlock, flags);
@@ -224,7 +223,7 @@ static int etb_enable_perf(struct coresight_device *csdev, void *data)
}
static int etb_enable(struct coresight_device *csdev, enum cs_mode mode,
- void *data)
+ struct perf_output_handle *handle)
{
int ret;
@@ -233,7 +232,7 @@ static int etb_enable(struct coresight_device *csdev, enum cs_mode mode,
ret = etb_enable_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = etb_enable_perf(csdev, data);
+ ret = etb_enable_perf(csdev, handle);
break;
default:
ret = -EINVAL;
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index c10dd3643854..eca06a89843f 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -134,7 +134,7 @@ static inline void CS_UNLOCK(void __iomem *addr)
void coresight_disable_path(struct coresight_path *path);
int coresight_enable_path(struct coresight_path *path, enum cs_mode mode,
- void *sink_data);
+ struct perf_output_handle *handle);
struct coresight_device *coresight_get_sink(struct coresight_path *path);
struct coresight_device *coresight_get_sink_by_id(u32 id);
struct coresight_device *
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c
index d4f641cd9de6..fdf1c2511d67 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
@@ -244,13 +244,13 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)
return ret;
}
-static int tmc_enable_etf_sink_perf(struct coresight_device *csdev, void *data)
+static int tmc_enable_etf_sink_perf(struct coresight_device *csdev,
+ struct perf_output_handle *handle)
{
int ret = 0;
pid_t pid;
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
- struct perf_output_handle *handle = data;
struct cs_buffers *buf = etm_perf_sink_config(handle);
spin_lock_irqsave(&drvdata->spinlock, flags);
@@ -302,7 +302,7 @@ static int tmc_enable_etf_sink_perf(struct coresight_device *csdev, void *data)
}
static int tmc_enable_etf_sink(struct coresight_device *csdev,
- enum cs_mode mode, void *data)
+ enum cs_mode mode, struct perf_output_handle *handle)
{
int ret;
@@ -311,7 +311,7 @@ static int tmc_enable_etf_sink(struct coresight_device *csdev,
ret = tmc_enable_etf_sink_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = tmc_enable_etf_sink_perf(csdev, data);
+ ret = tmc_enable_etf_sink_perf(csdev, handle);
break;
/* We shouldn't be here */
default:
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index a48bb85d0e7f..2d0bd06bab2a 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -1252,9 +1252,8 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
}
struct etr_buf *tmc_etr_get_buffer(struct coresight_device *csdev,
- enum cs_mode mode, void *data)
+ enum cs_mode mode, struct perf_output_handle *handle)
{
- struct perf_output_handle *handle = data;
struct etr_perf_buffer *etr_perf;
switch (mode) {
@@ -1642,13 +1641,13 @@ tmc_update_etr_buffer(struct coresight_device *csdev,
return size;
}
-static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, void *data)
+static int tmc_enable_etr_sink_perf(struct coresight_device *csdev,
+ struct perf_output_handle *handle)
{
int rc = 0;
pid_t pid;
unsigned long flags;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
- struct perf_output_handle *handle = data;
struct etr_perf_buffer *etr_perf = etm_perf_sink_config(handle);
spin_lock_irqsave(&drvdata->spinlock, flags);
@@ -1696,13 +1695,13 @@ static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, void *data)
}
static int tmc_enable_etr_sink(struct coresight_device *csdev,
- enum cs_mode mode, void *data)
+ enum cs_mode mode, struct perf_output_handle *handle)
{
switch (mode) {
case CS_MODE_SYSFS:
return tmc_enable_etr_sink_sysfs(csdev);
case CS_MODE_PERF:
- return tmc_enable_etr_sink_perf(csdev, data);
+ return tmc_enable_etr_sink_perf(csdev, handle);
default:
return -EINVAL;
}
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h
index 2671926be62a..e991afd43742 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.h
+++ b/drivers/hwtracing/coresight/coresight-tmc.h
@@ -336,7 +336,7 @@ struct coresight_device *tmc_etr_get_catu_device(struct tmc_drvdata *drvdata);
void tmc_etr_set_catu_ops(const struct etr_buf_operations *catu);
void tmc_etr_remove_catu_ops(void);
struct etr_buf *tmc_etr_get_buffer(struct coresight_device *csdev,
- enum cs_mode mode, void *data);
+ enum cs_mode mode, struct perf_output_handle *handle);
extern const struct attribute_group coresight_etr_group;
#endif
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 97ef36f03ec2..ccf463ac7bf5 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -75,7 +75,7 @@ static void tpiu_enable_hw(struct csdev_access *csa)
}
static int tpiu_enable(struct coresight_device *csdev, enum cs_mode mode,
- void *__unused)
+ struct perf_output_handle *__unused)
{
struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index fff67aac8418..a0914d10ed47 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -1011,11 +1011,10 @@ static int __arm_trbe_enable(struct trbe_buf *buf,
}
static int arm_trbe_enable(struct coresight_device *csdev, enum cs_mode mode,
- void *data)
+ struct perf_output_handle *handle)
{
struct trbe_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
struct trbe_cpudata *cpudata = dev_get_drvdata(&csdev->dev);
- struct perf_output_handle *handle = data;
struct trbe_buf *buf = etm_perf_sink_config(handle);
WARN_ON(cpudata->cpu != smp_processor_id());
diff --git a/drivers/hwtracing/coresight/ultrasoc-smb.c b/drivers/hwtracing/coresight/ultrasoc-smb.c
index dc3c9504dd7c..1574b5067206 100644
--- a/drivers/hwtracing/coresight/ultrasoc-smb.c
+++ b/drivers/hwtracing/coresight/ultrasoc-smb.c
@@ -213,10 +213,9 @@ static void smb_enable_sysfs(struct coresight_device *csdev)
coresight_set_mode(csdev, CS_MODE_SYSFS);
}
-static int smb_enable_perf(struct coresight_device *csdev, void *data)
+static int smb_enable_perf(struct coresight_device *csdev, struct perf_output_handle *handle)
{
struct smb_drv_data *drvdata = dev_get_drvdata(csdev->dev.parent);
- struct perf_output_handle *handle = data;
struct cs_buffers *buf = etm_perf_sink_config(handle);
pid_t pid;
@@ -240,7 +239,7 @@ static int smb_enable_perf(struct coresight_device *csdev, void *data)
}
static int smb_enable(struct coresight_device *csdev, enum cs_mode mode,
- void *data)
+ struct perf_output_handle *handle)
{
struct smb_drv_data *drvdata = dev_get_drvdata(csdev->dev.parent);
int ret = 0;
@@ -261,7 +260,7 @@ static int smb_enable(struct coresight_device *csdev, enum cs_mode mode,
smb_enable_sysfs(csdev);
break;
case CS_MODE_PERF:
- ret = smb_enable_perf(csdev, data);
+ ret = smb_enable_perf(csdev, handle);
break;
default:
ret = -EINVAL;
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 55bb825d509e..937a8d4f815b 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -363,7 +363,7 @@ enum cs_mode {
*/
struct coresight_ops_sink {
int (*enable)(struct coresight_device *csdev, enum cs_mode mode,
- void *data);
+ struct perf_output_handle *handle);
int (*disable)(struct coresight_device *csdev);
void *(*alloc_buffer)(struct coresight_device *csdev,
struct perf_event *event, void **pages,
--
2.34.1
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