diff options
| author | Qipeng Zha <[email protected]> | 2016-02-18 02:03:38 +0800 |
|---|---|---|
| committer | Darren Hart <[email protected]> | 2016-03-23 10:05:47 -0700 |
| commit | 1f1ae997fd47d058522f32b91059111dbc4a2b54 (patch) | |
| tree | 08fad509a111ab984420925405e587ee2aa8a087 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 1a2f25d5e73f4f1ae985801a05ed37bbe0ea11f3 (diff) | |
intel_pmc_ipc: Avoid pending IPC1 command during legacy suspend
During legacy suspend flow, IPC1 commands are being requested
from opregion driver. But the PMC_IPC1 command will timeout as example:
[ 281.444600] ipc_debug##: ipc_send_command: cmd=0x201ff,
[ 281.444648] wbuf[0]=0x4ea6
[ 281.444668] wbuf[1]=0x0
[ 281.444674] wbuf[2]=0x0
[ 281.444676] wbuf[3]=0x0
[ 284.446467] pmc-ipc-plat INT34D2:00: IPC timed out, TS=0x4, CMD=0x200ff
This is because before the opregion driver could send IPC1 commands,
the PMC_IPC irq is already suspended. Which makes the IPC command to
timeout.
Solution: register pmc_ipc irq as IRQF_NO_SUSPEND
Signed-off-by: Ananth Krishna R <[email protected]>
Signed-off-by: Bharath K Veera <[email protected]>
Signed-off-by: Qipeng Zha <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Signed-off-by: Darren Hart <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions