Date: Thu, 21 Feb 2013 06:38:24 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r247086 - head/sys/x86/isa Message-ID: <201302210638.r1L6cOVx006678@svn.freebsd.org>
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Author: imp Date: Thu Feb 21 06:38:24 2013 New Revision: 247086 URL: http://svnweb.freebsd.org/changeset/base/247086 Log: Correct comment about use of pmtimer, and the real reason it isn't used or desirable for amd64. Modified: head/sys/x86/isa/clock.c Modified: head/sys/x86/isa/clock.c ============================================================================== --- head/sys/x86/isa/clock.c Thu Feb 21 06:18:40 2013 (r247085) +++ head/sys/x86/isa/clock.c Thu Feb 21 06:38:24 2013 (r247086) @@ -478,9 +478,10 @@ i8254_restore(void) * * This function is called from pmtimer_resume() to restore all the timers. * This should not be necessary, but there are broken laptops that do not - * restore all the timers on resume. - * As long as pmtimer is not part of amd64 suport, skip this for the amd64 - * case. + * restore all the timers on resume. The APM spec was at best vague on the + * subject. + * pmtimer is used only with the old APM power management, and not with + * acpi, which is required for amd64, so skip it in that case. */ void timer_restore(void)
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