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authorYangtao Li <frank.li@vivo.com>2023-02-09 12:02:39 +0800
committerDaniel Lezcano <daniel.lezcano@linaro.org>2023-02-13 13:10:17 +0100
commit5ccb51b06c8bfcfca99d3f68e671eead7318301d (patch)
tree1540a65ec79b25c6b7fd8c56ea23dbfcebb193b3 /drivers/clocksource
parentcf16f631b0bbd98df4b2ccc13346f564412eae68 (diff)
clocksource/drivers/timer-sun4i: Add CLOCK_EVT_FEAT_DYNIRQ
Add CLOCK_EVT_FEAT_DYNIRQ to allow the IRQ could be runtime set affinity to the cores that needs wake up, otherwise saying core0 has to send IPI to wakeup core1. With CLOCK_EVT_FEAT_DYNIRQ set, when broadcast timer could wake up the cores, IPI is not needed. After enabling this feature, especially the scene where cpuidle is enabled can benefit. Signed-off-by: Yangtao Li <frank.li@vivo.com> Link: https://lore.kernel.org/r/20230209040239.24710-1-frank.li@vivo.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/timer-sun4i.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/clocksource/timer-sun4i.c b/drivers/clocksource/timer-sun4i.c
index e5a70aa1deb4..7bdcc60ad43c 100644
--- a/drivers/clocksource/timer-sun4i.c
+++ b/drivers/clocksource/timer-sun4i.c
@@ -144,7 +144,8 @@ static struct timer_of to = {
.clkevt = {
.name = "sun4i_tick",
.rating = 350,
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+ .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
+ CLOCK_EVT_FEAT_DYNIRQ,
.set_state_shutdown = sun4i_clkevt_shutdown,
.set_state_periodic = sun4i_clkevt_set_periodic,
.set_state_oneshot = sun4i_clkevt_set_oneshot,