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author | iwasaki <iwasaki@FreeBSD.org> | 2001-11-01 16:34:07 +0000 |
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committer | iwasaki <iwasaki@FreeBSD.org> | 2001-11-01 16:34:07 +0000 |
commit | f1842a13d838c3a94044961bbf70910f54a49956 (patch) | |
tree | 386182cbb6b07e9a3fa20ca8415118c34d61ecae /sys/amd64/isa | |
parent | 9440591aaa9e7f2d8ef542a245eb93b2c2547844 (diff) | |
download | FreeBSD-src-f1842a13d838c3a94044961bbf70910f54a49956.zip FreeBSD-src-f1842a13d838c3a94044961bbf70910f54a49956.tar.gz |
Some fix for the recent apm module changes.
- Now that apm loadable module can inform its existence to other kernel
components (e.g. i386/isa/clock.c:startrtclock()'s TCS hack).
- Exchange priority of SI_SUB_CPU and SI_SUB_KLD for above purpose.
- Add simple arbitration mechanism for APM vs. ACPI. This prevents
the kernel enables both of them.
- Remove obsolete `#ifdef DEV_APM' related code.
- Add abstracted interface for Powermanagement operations. Public apm(4)
functions, such as apm_suspend(), should be replaced new interfaces.
Currently only power_pm_suspend (successor of apm_suspend) is implemented.
Reviewed by: peter, arch@ and audit@
Diffstat (limited to 'sys/amd64/isa')
-rw-r--r-- | sys/amd64/isa/clock.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c index 13e11a4..a7aaea0 100644 --- a/sys/amd64/isa/clock.c +++ b/sys/amd64/isa/clock.c @@ -49,7 +49,6 @@ */ #include "opt_clock.h" -#include "opt_apm.h" #include "opt_mca.h" #include <sys/param.h> @@ -63,6 +62,7 @@ #include <sys/kernel.h> #include <sys/sysctl.h> #include <sys/cons.h> +#include <sys/power.h> #include <machine/clock.h> #ifdef CLK_CALIBRATION_LOOP @@ -823,7 +823,6 @@ startrtclock() * Curse Intel for leaving the counter out of the I/O APIC. */ -#ifdef DEV_APM /* * We can not use the TSC if we support APM. Precise timekeeping * on an APM'ed machine is at best a fools pursuit, since @@ -834,13 +833,11 @@ startrtclock() * We don't know at this point whether APM is going to be used * or not, nor when it might be activated. Play it safe. */ - { - int disabled = 0; - resource_int_value("apm", 0, "disabled", &disabled); - if (disabled == 0) + if (power_pm_get_type() == POWER_PM_TYPE_APM) { + if (bootverbose) + printf("TSC initialization skipped: APM enabled.\n"); return; } -#endif /* DEV_APM */ if (tsc_present && tsc_freq != 0 && !tsc_is_broken) { tsc_timecounter.tc_frequency = tsc_freq; |