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Message-Id: <20230308173904.3449231-4-james.clark@arm.com>
Date: Wed, 8 Mar 2023 17:38:57 +0000
From: James Clark <james.clark@....com>
To: coresight@...ts.linaro.org
Cc: James Clark <james.clark@....com>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/8] coresight: Rename nr_outports to nr_outconns
Rename to avoid confusion between port number and the index in the
connection array. The port number is already stored in the connection,
and in a later commit the connection array will be appended to, so
the length of it will no longer reflect the number of ports.
No functional changes.
Signed-off-by: James Clark <james.clark@....com>
---
drivers/hwtracing/coresight/coresight-core.c | 32 ++++++++---------
.../hwtracing/coresight/coresight-platform.c | 34 +++++++++----------
.../hwtracing/coresight/coresight-tmc-etr.c | 2 +-
include/linux/coresight.h | 10 +++---
4 files changed, 39 insertions(+), 39 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index c0eda7407fb8..617be08883da 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -118,7 +118,7 @@ static int coresight_find_link_inport(struct coresight_device *csdev,
int i;
struct coresight_connection *conn;
- for (i = 0; i < parent->pdata->nr_outport; i++) {
+ for (i = 0; i < parent->pdata->nr_outconns; i++) {
conn = &parent->pdata->out_conns[i];
if (conn->child_dev == csdev)
return conn->child_port;
@@ -136,7 +136,7 @@ static int coresight_find_link_outport(struct coresight_device *csdev,
int i;
struct coresight_connection *conn;
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
conn = &csdev->pdata->out_conns[i];
if (conn->child_dev == child)
return conn->outport;
@@ -397,9 +397,9 @@ static void coresight_disable_link(struct coresight_device *csdev,
link_subtype = csdev->subtype.link_subtype;
if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG) {
- nr_conns = csdev->pdata->nr_inport;
+ nr_conns = csdev->pdata->nr_inconns;
} else if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT) {
- nr_conns = csdev->pdata->nr_outport;
+ nr_conns = csdev->pdata->nr_outconns;
} else {
nr_conns = 1;
}
@@ -603,7 +603,7 @@ coresight_find_enabled_sink(struct coresight_device *csdev)
/*
* Recursively explore each port found on this element.
*/
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_device *child_dev;
child_dev = csdev->pdata->out_conns[i].child_dev;
@@ -719,7 +719,7 @@ static int coresight_grab_device(struct coresight_device *csdev)
{
int i;
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_device *child;
child = csdev->pdata->out_conns[i].child_dev;
@@ -749,7 +749,7 @@ static void coresight_drop_device(struct coresight_device *csdev)
int i;
coresight_put_ref(csdev);
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_device *child;
child = csdev->pdata->out_conns[i].child_dev;
@@ -791,7 +791,7 @@ static int _coresight_build_path(struct coresight_device *csdev,
}
/* Not a sink - recursively explore each port found on this element */
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_device *child_dev;
child_dev = csdev->pdata->out_conns[i].child_dev;
@@ -960,7 +960,7 @@ coresight_find_sink(struct coresight_device *csdev, int *depth)
* Not a sink we want - or possible child sink may be better.
* recursively explore each port found on this element.
*/
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_device *child_dev, *sink = NULL;
int child_depth = curr_depth;
@@ -1333,7 +1333,7 @@ static int coresight_orphan_match(struct device *dev, void *data)
* Circle throuch all the connection of that component. If we find
* an orphan connection whose name matches @csdev, link it.
*/
- for (i = 0; i < i_csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < i_csdev->pdata->nr_outconns; i++) {
conn = &i_csdev->pdata->out_conns[i];
/* Skip the port if FW doesn't describe it */
@@ -1374,7 +1374,7 @@ static int coresight_fixup_device_conns(struct coresight_device *csdev)
{
int i, ret = 0;
- for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ for (i = 0; i < csdev->pdata->nr_outconns; i++) {
struct coresight_connection *conn = &csdev->pdata->out_conns[i];
if (!conn->child_fwnode)
@@ -1411,7 +1411,7 @@ static int coresight_remove_match(struct device *dev, void *data)
* Circle throuch all the connection of that component. If we find
* a connection whose name matches @csdev, remove it.
*/
- for (i = 0; i < iterator->pdata->nr_outport; i++) {
+ for (i = 0; i < iterator->pdata->nr_outconns; i++) {
conn = &iterator->pdata->out_conns[i];
if (conn->child_dev == NULL || conn->child_fwnode == NULL)
@@ -1451,7 +1451,7 @@ static void coresight_remove_conns(struct coresight_device *csdev)
* doesn't have at least one input port, there is no point
* in searching all the devices.
*/
- if (csdev->pdata->nr_inport)
+ if (csdev->pdata->nr_inconns)
bus_for_each_dev(&coresight_bustype, NULL,
csdev, coresight_remove_match);
}
@@ -1550,7 +1550,7 @@ void coresight_release_platform_data(struct coresight_device *csdev,
int i;
struct coresight_connection *conns = pdata->out_conns;
- for (i = 0; i < pdata->nr_outport; i++) {
+ for (i = 0; i < pdata->nr_outconns; i++) {
/* If we have made the links, remove them now */
if (csdev && conns[i].child_dev)
coresight_remove_links(csdev, &conns[i]);
@@ -1587,9 +1587,9 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
link_subtype = desc->subtype.link_subtype;
if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG)
- nr_refcnts = desc->pdata->nr_inport;
+ nr_refcnts = desc->pdata->nr_inconns;
else if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT)
- nr_refcnts = desc->pdata->nr_outport;
+ nr_refcnts = desc->pdata->nr_outconns;
}
refcnts = kcalloc(nr_refcnts, sizeof(*refcnts), GFP_KERNEL);
diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index 5085525a32bb..ed865e0621a9 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -26,8 +26,8 @@
static int coresight_alloc_conns(struct device *dev,
struct coresight_platform_data *pdata)
{
- if (pdata->nr_outport) {
- pdata->out_conns = devm_kcalloc(dev, pdata->nr_outport,
+ if (pdata->nr_outconns) {
+ pdata->out_conns = devm_kcalloc(dev, pdata->nr_outconns,
sizeof(*pdata->out_conns), GFP_KERNEL);
if (!pdata->out_conns)
return -ENOMEM;
@@ -84,7 +84,7 @@ static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep)
}
static void of_coresight_get_ports_legacy(const struct device_node *node,
- int *nr_inport, int *nr_outport)
+ int *nr_inconns, int *nr_outconns)
{
struct device_node *ep = NULL;
struct of_endpoint endpoint;
@@ -114,8 +114,8 @@ static void of_coresight_get_ports_legacy(const struct device_node *node,
} while (ep);
- *nr_inport = in;
- *nr_outport = out;
+ *nr_inconns = in;
+ *nr_outconns = out;
}
static struct device_node *of_coresight_get_port_parent(struct device_node *ep)
@@ -164,7 +164,7 @@ of_coresight_count_ports(struct device_node *port_parent)
}
static void of_coresight_get_ports(const struct device_node *node,
- int *nr_inport, int *nr_outport)
+ int *nr_inconns, int *nr_outconns)
{
struct device_node *input_ports = NULL, *output_ports = NULL;
@@ -173,16 +173,16 @@ static void of_coresight_get_ports(const struct device_node *node,
if (input_ports || output_ports) {
if (input_ports) {
- *nr_inport = of_coresight_count_ports(input_ports);
+ *nr_inconns = of_coresight_count_ports(input_ports);
of_node_put(input_ports);
}
if (output_ports) {
- *nr_outport = of_coresight_count_ports(output_ports);
+ *nr_outconns = of_coresight_count_ports(output_ports);
of_node_put(output_ports);
}
} else {
/* Fall back to legacy DT bindings parsing */
- of_coresight_get_ports_legacy(node, nr_inport, nr_outport);
+ of_coresight_get_ports_legacy(node, nr_inconns, nr_outconns);
}
}
@@ -289,10 +289,10 @@ static int of_get_coresight_platform_data(struct device *dev,
struct device_node *node = dev->of_node;
/* Get the number of input and output port for this component */
- of_coresight_get_ports(node, &pdata->nr_inport, &pdata->nr_outport);
+ of_coresight_get_ports(node, &pdata->nr_inconns, &pdata->nr_outconns);
/* If there are no output connections, we are done */
- if (!pdata->nr_outport)
+ if (!pdata->nr_outconns)
return 0;
ret = coresight_alloc_conns(dev, pdata);
@@ -690,7 +690,7 @@ static int acpi_coresight_parse_graph(struct acpi_device *adev,
const union acpi_object *graph;
struct coresight_connection *conns, *ptr;
- pdata->nr_inport = pdata->nr_outport = 0;
+ pdata->nr_inconns = pdata->nr_outconns = 0;
graph = acpi_get_coresight_graph(adev);
if (!graph)
return -ENOENT;
@@ -718,11 +718,11 @@ static int acpi_coresight_parse_graph(struct acpi_device *adev,
return dir;
if (dir == ACPI_CORESIGHT_LINK_MASTER) {
- if (ptr->outport >= pdata->nr_outport)
- pdata->nr_outport = ptr->outport + 1;
+ if (ptr->outport >= pdata->nr_outconns)
+ pdata->nr_outconns = ptr->outport + 1;
ptr++;
} else {
- WARN_ON(pdata->nr_inport == ptr->child_port + 1);
+ WARN_ON(pdata->nr_inconns == ptr->child_port + 1);
/*
* We do not track input port connections for a device.
* However we need the highest port number described,
@@ -730,8 +730,8 @@ static int acpi_coresight_parse_graph(struct acpi_device *adev,
* record for an output connection. Hence, do not move
* the ptr for input connections
*/
- if (ptr->child_port >= pdata->nr_inport)
- pdata->nr_inport = ptr->child_port + 1;
+ if (ptr->child_port >= pdata->nr_inconns)
+ pdata->nr_inconns = ptr->child_port + 1;
}
}
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 86d4a08aa833..4711dfa7418c 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -781,7 +781,7 @@ tmc_etr_get_catu_device(struct tmc_drvdata *drvdata)
if (!IS_ENABLED(CONFIG_CORESIGHT_CATU))
return NULL;
- for (i = 0; i < etr->pdata->nr_outport; i++) {
+ for (i = 0; i < etr->pdata->nr_outconns; i++) {
tmp = etr->pdata->out_conns[i].child_dev;
if (tmp && coresight_is_catu_device(tmp))
return tmp;
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 322d7273e122..cdf0d1def778 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -102,13 +102,13 @@ union coresight_dev_subtype {
* struct coresight_platform_data - data harvested from the firmware
* specification.
*
- * @nr_inport: Number of elements for the input connections.
- * @nr_outport: Number of elements for the output connections.
- * @conns: Sparse array of nr_outport connections from this component.
+ * @nr_inconns: Number of elements for the input connections.
+ * @nr_outconns: Number of elements for the output connections.
+ * @conns: Sparse array of nr_outconns connections from this component.
*/
struct coresight_platform_data {
- int nr_inport;
- int nr_outport;
+ int nr_inconns;
+ int nr_outconns;
struct coresight_connection *out_conns;
};
--
2.34.1
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