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| author |   Mike Leach <mike.leach@linaro.org> | 2021-08-18 13:40:16 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-18 22:33:28 +0200 |
| commit | f8cce2ff3c04361b8843d8489620fda8880f668b (patch) | |
| tree | 3e807fb02d130b81ffb5e93590e41ce3a5ec6a3c /drivers/hwtracing/coresight/coresight-config.h | |
| parent | coresight: etm-perf: Update to handle configuration selection (diff) | |
| download | linux-dev-f8cce2ff3c04361b8843d8489620fda8880f668b.tar.xz linux-dev-f8cce2ff3c04361b8843d8489620fda8880f668b.zip | |
coresight: syscfg: Add API to activate and enable configurations
Configurations are first activated, then when any coresight device is
enabled, the active configurations are checked and any matching
one is enabled.
This patch provides the activation / enable API.
Link: https://lore.kernel.org/r/20210723165444.1048-6-mike.leach@linaro.org
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210818194022.379573-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-config.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-config.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-config.h b/drivers/hwtracing/coresight/coresight-config.h index 0667581822c1..25eb6c632692 100644 --- a/drivers/hwtracing/coresight/coresight-config.h +++ b/drivers/hwtracing/coresight/coresight-config.h @@ -127,6 +127,7 @@ struct cscfg_feature_desc { * @nr_total_params: Sum of all parameters declared by used features * @presets: Array of preset values. * @event_ea: Extended attribute for perf event value + * @active_cnt: ref count for activate on this configuration. * */ struct cscfg_config_desc { @@ -139,6 +140,7 @@ struct cscfg_config_desc { int nr_total_params; const u64 *presets; /* nr_presets * nr_total_params */ struct dev_ext_attribute *event_ea; + atomic_t active_cnt; }; /** |