diff options
| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2019-05-03 11:44:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-03 18:16:21 +0200 |
| commit | 8d4155126e32fdceda7e1520e77a7beac2217f4a (patch) | |
| tree | 8578bb0285afc60adaed2f1f8b7de4dace2c4097 /drivers/hwtracing/intel_th/intel_th.h | |
| parent | ba39bd8306057fb343dfb75d93a76d824b625236 (diff) | |
intel_th: msu: Factor out pipeline draining
The code that waits for the pipeline empty condition of the MSU is
currently called in the path that disables the trace. We will also
need this in the window switch trigger sequence. Therefore, factor
out this code and make it accessible to the GTH device.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/intel_th/intel_th.h')
| -rw-r--r-- | drivers/hwtracing/intel_th/intel_th.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h index 8b986ba160e4..74a6a4071e7f 100644 --- a/drivers/hwtracing/intel_th/intel_th.h +++ b/drivers/hwtracing/intel_th/intel_th.h @@ -20,6 +20,8 @@ enum { INTEL_TH_SWITCH, }; +struct intel_th_device; + /** * struct intel_th_output - descriptor INTEL_TH_OUTPUT type devices * @port: output port number, assigned by the switch @@ -27,6 +29,7 @@ enum { * @scratchpad: scratchpad bits to flag when this output is enabled * @multiblock: true for multiblock output configuration * @active: true when this output is enabled + * @wait_empty: wait for device pipeline to be empty * * Output port descriptor, used by switch driver to tell which output * port this output device corresponds to. Filled in at output device's @@ -165,6 +168,7 @@ struct intel_th_driver { struct intel_th_output *output); /* output ops */ irqreturn_t (*irq)(struct intel_th_device *thdev); + void (*wait_empty)(struct intel_th_device *thdev); int (*activate)(struct intel_th_device *thdev); void (*deactivate)(struct intel_th_device *thdev); /* file_operations for those who want a device node */ |