From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
mathieu.poirier@linaro.org, mike.leach@linaro.org,
rjw@rjwysocki.net, robert.walker@arm.com,
Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v2 24/36] coresight: Reuse platform data structure for connection tracking
Date: Mon, 15 Apr 2019 17:04:07 +0100 [thread overview]
Message-ID: <1555344260-12375-25-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1555344260-12375-1-git-send-email-suzuki.poulose@arm.com>
The platform specific information describes the connections and
the ports of a given coresigh device. This information is also
recorded in the coresight device as separate fields. Let us reuse
the original platform description to streamline the handling
of the data.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
drivers/hwtracing/coresight/coresight-tmc-etr.c | 4 +--
drivers/hwtracing/coresight/coresight.c | 46 ++++++++++++-------------
include/linux/coresight.h | 8 ++---
3 files changed, 27 insertions(+), 31 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 0911f9c..d3ff2c7 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -747,8 +747,8 @@ tmc_etr_get_catu_device(struct tmc_drvdata *drvdata)
if (!IS_ENABLED(CONFIG_CORESIGHT_CATU))
return NULL;
- for (i = 0; i < etr->nr_outport; i++) {
- tmp = etr->conns[i].child_dev;
+ for (i = 0; i < etr->pdata->nr_outport; i++) {
+ tmp = etr->pdata->conns[i].child_dev;
if (tmp && coresight_is_catu_device(tmp))
return tmp;
}
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 530ad69..f6c5244 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -100,8 +100,8 @@ static int coresight_find_link_inport(struct coresight_device *csdev,
int i;
struct coresight_connection *conn;
- for (i = 0; i < parent->nr_outport; i++) {
- conn = &parent->conns[i];
+ for (i = 0; i < parent->pdata->nr_outport; i++) {
+ conn = &parent->pdata->conns[i];
if (conn->child_dev == csdev)
return conn->child_port;
}
@@ -118,8 +118,8 @@ static int coresight_find_link_outport(struct coresight_device *csdev,
int i;
struct coresight_connection *conn;
- for (i = 0; i < csdev->nr_outport; i++) {
- conn = &csdev->conns[i];
+ for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ conn = &csdev->pdata->conns[i];
if (conn->child_dev == child)
return conn->outport;
}
@@ -304,10 +304,10 @@ static void coresight_disable_link(struct coresight_device *csdev,
if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG) {
refport = inport;
- nr_conns = csdev->nr_inport;
+ nr_conns = csdev->pdata->nr_inport;
} else if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT) {
refport = outport;
- nr_conns = csdev->nr_outport;
+ nr_conns = csdev->pdata->nr_outport;
} else {
refport = 0;
nr_conns = 1;
@@ -593,9 +593,10 @@ static void coresight_grab_device(struct coresight_device *csdev)
{
int i;
- for (i = 0; i < csdev->nr_outport; i++) {
- struct coresight_device *child = csdev->conns[i].child_dev;
+ for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ struct coresight_device *child;
+ child = csdev->pdata->conns[i].child_dev;
if (child && child->type == CORESIGHT_DEV_TYPE_HELPER)
pm_runtime_get_sync(child->dev.parent);
}
@@ -611,9 +612,10 @@ static void coresight_drop_device(struct coresight_device *csdev)
int i;
pm_runtime_put(csdev->dev.parent);
- for (i = 0; i < csdev->nr_outport; i++) {
- struct coresight_device *child = csdev->conns[i].child_dev;
+ for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ struct coresight_device *child;
+ child = csdev->pdata->conns[i].child_dev;
if (child && child->type == CORESIGHT_DEV_TYPE_HELPER)
pm_runtime_put(child->dev.parent);
}
@@ -643,9 +645,10 @@ static int _coresight_build_path(struct coresight_device *csdev,
goto out;
/* Not a sink - recursively explore each port found on this element */
- for (i = 0; i < csdev->nr_outport; i++) {
- struct coresight_device *child_dev = csdev->conns[i].child_dev;
+ for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ struct coresight_device *child_dev;
+ child_dev = csdev->pdata->conns[i].child_dev;
if (child_dev &&
_coresight_build_path(child_dev, sink, path) == 0) {
found = true;
@@ -998,8 +1001,8 @@ 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->nr_outport; i++) {
- conn = &i_csdev->conns[i];
+ for (i = 0; i < i_csdev->pdata->nr_outport; i++) {
+ conn = &i_csdev->pdata->conns[i];
/* We have found at least one orphan connection */
if (conn->child_dev == NULL) {
@@ -1038,8 +1041,8 @@ static void coresight_fixup_device_conns(struct coresight_device *csdev)
{
int i;
- for (i = 0; i < csdev->nr_outport; i++) {
- struct coresight_connection *conn = &csdev->conns[i];
+ for (i = 0; i < csdev->pdata->nr_outport; i++) {
+ struct coresight_connection *conn = &csdev->pdata->conns[i];
struct device *dev = NULL;
if (conn->child_name)
@@ -1073,8 +1076,8 @@ 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->nr_outport; i++) {
- conn = &iterator->conns[i];
+ for (i = 0; i < iterator->pdata->nr_outport; i++) {
+ conn = &iterator->pdata->conns[i];
if (conn->child_dev == NULL)
continue;
@@ -1106,7 +1109,7 @@ 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->nr_inport)
+ if (csdev->pdata->nr_inport)
bus_for_each_dev(&coresight_bustype, NULL,
csdev, coresight_remove_match);
}
@@ -1193,10 +1196,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
csdev->refcnt = refcnts;
- csdev->nr_inport = desc->pdata->nr_inport;
- csdev->nr_outport = desc->pdata->nr_outport;
-
- csdev->conns = desc->pdata->conns;
+ csdev->pdata = desc->pdata;
csdev->type = desc->type;
csdev->subtype = desc->subtype;
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 84a2137..8c10def 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -140,9 +140,7 @@ struct coresight_connection {
/**
* struct coresight_device - representation of a device as used by the framework
- * @conns: array of coresight_connections associated to this component.
- * @nr_inport: number of input port associated to this component.
- * @nr_outport: number of output port associated to this component.
+ * @pdata: Platform data with device connections associated to this device.
* @type: as defined by @coresight_dev_type.
* @subtype: as defined by @coresight_dev_subtype.
* @ops: generic operations for this component, as defined
@@ -157,9 +155,7 @@ struct coresight_connection {
* @ea: Device attribute for sink representation under PMU directory.
*/
struct coresight_device {
- struct coresight_connection *conns;
- int nr_inport;
- int nr_outport;
+ struct coresight_platform_data *pdata;
enum coresight_dev_type type;
union coresight_dev_subtype subtype;
const struct coresight_ops *ops;
--
2.7.4
next prev parent reply other threads:[~2019-04-15 16:07 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-15 16:03 [PATCH v2 00/36] coresight: Support for ACPI bindings Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 01/36] coresight: Fix freeing up the coresight connections Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 02/36] coresight: etb10: Cleanup power management Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 03/36] coresight: tpiu: " Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 04/36] coresight: catu: " Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 05/36] coresight: tmc: " Suzuki K Poulose
2019-04-17 20:03 ` Mathieu Poirier
2019-04-23 9:33 ` Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 06/36] coresight: funnel: Clean up device book keeping Suzuki K Poulose
2019-04-17 20:14 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 07/36] coresight: replicator: Cleanup device tracking Suzuki K Poulose
2019-04-17 20:34 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 08/36] coresight: tmc: Clean up device specific data Suzuki K Poulose
2019-04-17 21:23 ` Mathieu Poirier
2019-05-03 17:13 ` Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 09/36] coresight: catu: Cleanup " Suzuki K Poulose
2019-04-17 21:40 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 10/36] coresight: tpiu: Clean up " Suzuki K Poulose
2019-04-17 21:41 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 11/36] coresight: stm: Cleanup " Suzuki K Poulose
2019-04-18 16:50 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 12/36] coresight: etm: Clean up " Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 13/36] coresight: etb10: " Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 14/36] coresight: Rename of_coresight to coresight-platform Suzuki K Poulose
2019-04-18 17:22 ` Mathieu Poirier
2019-04-15 16:03 ` [PATCH v2 15/36] coresight: etm3x: Rearrange cp14 access detection Suzuki K Poulose
2019-04-15 16:03 ` [PATCH v2 16/36] coresight: stm: Rearrange probing the stimulus area Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 17/36] coresight: tmc-etr: Rearrange probing default buffer size Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 18/36] coresight: platform: Make memory allocation helper generic Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 19/36] coresight: Introduce generic platform data helper Suzuki K Poulose
2019-04-22 18:09 ` Mathieu Poirier
2019-04-23 9:43 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 20/36] coresight: Make device to CPU mapping generic Suzuki K Poulose
2019-04-18 18:14 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 21/36] coresight: Remove cpu field from platform data Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 22/36] coresight: Remove name from platform description Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 23/36] coresight: Cleanup coresight_remove_conns Suzuki K Poulose
2019-04-15 16:04 ` Suzuki K Poulose [this message]
2019-04-22 17:06 ` [PATCH v2 24/36] coresight: Reuse platform data structure for connection tracking Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 25/36] coresight: Rearrange platform data probing Suzuki K Poulose
2019-04-22 17:16 ` Mathieu Poirier
2019-04-25 17:12 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 26/36] coresight: Add support for releasing platform specific data Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 27/36] drivers: Add a generic helper to match device by fwnode handle Suzuki K Poulose
2019-04-16 10:20 ` Rafael J. Wysocki
2019-04-16 10:34 ` Suzuki K Poulose
2019-04-16 10:45 ` Rafael J. Wysocki
2019-04-16 10:39 ` [RESEND][PATCH " Suzuki K Poulose
2019-04-16 10:48 ` Rafael J. Wysocki
2019-04-16 10:56 ` Suzuki K Poulose
2019-04-18 14:39 ` Rafael J. Wysocki
2019-04-18 15:18 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 28/36] coresight: platform: Use fwnode handle for device search Suzuki K Poulose
2019-04-23 16:17 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 29/36] coresight: Use fwnode handle instead of device names Suzuki K Poulose
2019-04-23 16:14 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 30/36] coresight: Use platform agnostic names Suzuki K Poulose
2019-04-23 17:38 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 31/36] coresight: stm: ACPI support for parsing stimulus base Suzuki K Poulose
2019-04-23 17:59 ` Mathieu Poirier
2019-04-25 16:17 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 32/36] coresight: Support for ACPI bindings Suzuki K Poulose
2019-04-25 16:50 ` Mathieu Poirier
2019-04-25 17:30 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 33/36] coresight: acpi: Support for components Suzuki K Poulose
2019-04-25 17:45 ` Mathieu Poirier
2019-04-29 8:54 ` Suzuki K Poulose
2019-04-15 16:04 ` [PATCH v2 34/36] [RFC] coresight: Pass coresight_device for coresight_release_platform_data Suzuki K Poulose
2019-04-29 17:40 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 35/36] [RFC] coresight: add return value for fixup connections Suzuki K Poulose
2019-04-29 17:44 ` Mathieu Poirier
2019-04-15 16:04 ` [PATCH v2 36/36] [RFC] coresight: Expose device connections via sysfs Suzuki K Poulose
2019-04-29 20:50 ` Mathieu Poirier
2019-04-15 16:04 ` [TEST PATCH 37/36][EDK2] edk2-platform: juno: Update ACPI CoreSight Bindings Suzuki K Poulose
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