mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 01:45:38 +07:00
f8729e8531
RTAS event scan has to run across all cpus. Right now we use a kernel thread and set_cpus_allowed but in doing so we wake up the previous cpu unnecessarily. Some ftrace output shows this: previous cpu (2): [002] 7.022331: sched_switch: task swapper:0 [140] ==> rtasd:194 [120] [002] 7.022338: sched_switch: task rtasd:194 [120] ==> migration/2:9 [0] [002] 7.022344: sched_switch: task migration/2:9 [0] ==> swapper:0 [140] next cpu (3): [003] 7.022345: sched_switch: task swapper:0 [140] ==> rtasd:194 [120] [003] 7.022371: sched_switch: task rtasd:194 [120] ==> swapper:0 [140] We can use schedule_delayed_work_on and avoid the unnecessary wakeup. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
||
|---|---|---|
| .. | ||
| 8xx | ||
| 40x | ||
| 44x | ||
| 52xx | ||
| 82xx | ||
| 83xx | ||
| 85xx | ||
| 86xx | ||
| 512x | ||
| amigaone | ||
| cell | ||
| chrp | ||
| embedded6xx | ||
| iseries | ||
| maple | ||
| pasemi | ||
| powermac | ||
| prep | ||
| ps3 | ||
| pseries | ||
| fsl_uli1575.c | ||
| Kconfig | ||
| Kconfig.cputype | ||
| Makefile | ||