diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2022-11-10 10:37:41 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2022-11-10 10:37:41 +0000 |
| commit | 63ceb005451da4d240db4a505b47b1e5854aecd9 (patch) | |
| tree | 1071e8229a978fd98f9047bbbf1736f297250d3f | |
| parent | a7f36092feb875d40924789f60221349ab6ab5ff (diff) | |
Put CPUs in the lowest P-state just before the final suspend step. The
firmware probably does this for us on ACPI systems with proper S3 support,
but this doesn't happen on systems where we park CPUs in a low-power idle
state ourselves.
ok deraadt@
| -rw-r--r-- | sys/kern/subr_suspend.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/kern/subr_suspend.c b/sys/kern/subr_suspend.c index 58f8ef5be19..ad156f92ce3 100644 --- a/sys/kern/subr_suspend.c +++ b/sys/kern/subr_suspend.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_suspend.c,v 1.13 2022/11/05 19:29:46 cheloha Exp $ */ +/* $OpenBSD: subr_suspend.c,v 1.14 2022/11/10 10:37:40 kettenis Exp $ */ /* * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com> * Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org> @@ -142,6 +142,9 @@ top: boothowto |= RB_POWERDOWN; config_suspend_all(DVACT_POWERDOWN); boothowto &= ~RB_POWERDOWN; + + if (cpu_setperf != NULL) + cpu_setperf(0); } error = gosleep(v); |