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| author | James Clark <james.clark@arm.com> | 2022-08-30 20:26:11 +0300 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2022-08-31 19:55:28 +0300 |
| commit | 08e9fa5f3663eaab20ea3430023d1dfbf60d29f5 (patch) | |
| tree | 6af73141bab067c0afe70892410597f342a60d32 /drivers/hwtracing/coresight/coresight-core.c | |
| parent | b6df1cbb415e543f2908f9c59a8fb20714b86879 (diff) | |
| download | linux-08e9fa5f3663eaab20ea3430023d1dfbf60d29f5.tar.xz | |
coresight: Re-use same function for similar sysfs register accessors
Currently each accessor macro creates an identical function which wastes
space in the text area and pollutes the ftrace function names. Change it
so that the same function is used, but the register to access is passed
in as parameter rather than baked into each function.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20220830172614.340962-4-james.clark@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-core.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index 1edfec1e9d18..c63b2167a69f 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -60,6 +60,20 @@ EXPORT_SYMBOL_GPL(coresight_barrier_pkt); static const struct cti_assoc_op *cti_assoc_ops; +ssize_t coresight_simple_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct coresight_device *csdev = container_of(_dev, struct coresight_device, dev); + struct cs_pair_attribute *cs_attr = container_of(attr, struct cs_pair_attribute, attr); + u64 val; + + pm_runtime_get_sync(_dev->parent); + val = csdev_access_relaxed_read_pair(&csdev->access, cs_attr->lo_off, cs_attr->hi_off); + pm_runtime_put_sync(_dev->parent); + return sysfs_emit(buf, "0x%llx\n", val); +} +EXPORT_SYMBOL_GPL(coresight_simple_show); + void coresight_set_cti_ops(const struct cti_assoc_op *cti_op) { cti_assoc_ops = cti_op; |