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author | John Baldwin <jhb@FreeBSD.org> | 2005-12-22 22:16:09 +0000 |
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committer | John Baldwin <jhb@FreeBSD.org> | 2005-12-22 22:16:09 +0000 |
commit | b439e431bf40739ff5a1f60bbc283289d374c849 (patch) | |
tree | 5d9826b3ac47ed5cf683fc0866e2dc25566d6a56 /sys/isa | |
parent | f7c20859423ea678579afe42f4804f8b636de512 (diff) | |
download | src-b439e431bf40739ff5a1f60bbc283289d374c849.tar.gz src-b439e431bf40739ff5a1f60bbc283289d374c849.zip |
Tweak how the MD code calls the fooclock() methods some. Instead of
passing a pointer to an opaque clockframe structure and requiring the
MD code to supply CLKF_FOO() macros to extract needed values out of the
opaque structure, just pass the needed values directly. In practice this
means passing the pair (usermode, pc) to hardclock() and profclock() and
passing the boolean (usermode) to hardclock_cpu() and hardclock_process().
Other details:
- Axe clockframe and CLKF_FOO() macros on all architectures. Basically,
all the archs were taking a trapframe and converting it into a clockframe
one way or another. Now they can just extract the PC and usermode values
directly out of the trapframe and pass it to fooclock().
- Renamed hardclock_process() to hardclock_cpu() as the latter is more
accurate.
- On Alpha, we now run profclock() at hz (profhz == hz) rather than at
the slower stathz.
- On Alpha, for the TurboLaser machines that don't have an 8254
timecounter, call hardclock() directly. This removes an extra
conditional check from every clock interrupt on Alpha on the BSP.
There is probably room for even further pruning here by changing Alpha
to use the simplified timecounter we use on x86 with the lapic timer
since we don't get interrupts from the 8254 on Alpha anyway.
- On x86, clkintr() shouldn't ever be called now unless using_lapic_timer
is false, so add a KASSERT() to that affect and remove a condition
to slightly optimize the non-lapic case.
- Change prototypeof arm_handler_execute() so that it's first arg is a
trapframe pointer rather than a void pointer for clarity.
- Use KCOUNT macro in profclock() to lookup the kernel profiling bucket.
Tested on: alpha, amd64, arm, i386, ia64, sparc64
Reviewed by: bde (mostly)
Notes
Notes:
svn path=/head/; revision=153666
Diffstat (limited to 'sys/isa')
-rw-r--r-- | sys/isa/atrtc.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sys/isa/atrtc.c b/sys/isa/atrtc.c index 7a75cfb0befc..f785849faca5 100644 --- a/sys/isa/atrtc.c +++ b/sys/isa/atrtc.c @@ -70,6 +70,7 @@ __FBSDID("$FreeBSD$"); #include <sys/power.h> #include <machine/clock.h> +#include <machine/cpu.h> #include <machine/cputypes.h> #include <machine/frame.h> #include <machine/intr_machdep.h> @@ -155,7 +156,7 @@ static struct timecounter i8254_timecounter = { }; static void -clkintr(struct clockframe *frame) +clkintr(struct trapframe *frame) { if (timecounter->tc_get_timecount == i8254_get_timecount) { @@ -169,8 +170,8 @@ clkintr(struct clockframe *frame) clkintr_pending = 0; mtx_unlock_spin(&clock_lock); } - if (!using_lapic_timer) - hardclock(frame); + KASSERT(!using_lapic_timer, ("clk interrupt enabled with lapic timer")); + hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); #ifdef DEV_MCA /* Reset clock interrupt by asserting bit 7 of port 0x61 */ if (MCA_system) @@ -231,17 +232,17 @@ release_timer2() * in the statistics, but the stat clock will no longer stop. */ static void -rtcintr(struct clockframe *frame) +rtcintr(struct trapframe *frame) { while (rtcin(RTC_INTR) & RTCIR_PERIOD) { if (profprocs != 0) { if (--pscnt == 0) pscnt = psdiv; - profclock(frame); + profclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); } if (pscnt == psdiv) - statclock(frame); + statclock(TRAPF_USERMODE(frame)); } } |