diff options
| author | jhb <jhb@FreeBSD.org> | 2004-04-27 20:03:26 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2004-04-27 20:03:26 +0000 |
| commit | 5b2742dec23b23e74fb86a9994892cfe1ffad420 (patch) | |
| tree | 9f3002ea91b9bb88d609503fd8f7b6bf61e451a5 /sys/isa/atrtc.c | |
| parent | ccbc6f1994d9c3d6017abad3b1f1c335ea2b75d4 (diff) | |
| download | FreeBSD-src-5b2742dec23b23e74fb86a9994892cfe1ffad420.zip FreeBSD-src-5b2742dec23b23e74fb86a9994892cfe1ffad420.tar.gz | |
- The i8254 uses IRQ 0, not IRQ 8. Correct i8254_intsrc to reference the
correct interrupt source.
- Cache a pointer to the i8254_intsrc's pending method to avoid several
pointer indirections in i8254_get_timecount().
Reported by: bde
Diffstat (limited to 'sys/isa/atrtc.c')
| -rw-r--r-- | sys/isa/atrtc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/isa/atrtc.c b/sys/isa/atrtc.c index d6e42ee..e7c3d26 100644 --- a/sys/isa/atrtc.c +++ b/sys/isa/atrtc.c @@ -131,10 +131,11 @@ struct mtx clock_lock; static int beeping = 0; static const u_char daysinmonth[] = {31,28,31,30,31,30,31,31,30,31,30,31}; static u_int hardclock_max_count; +static struct intsrc *i8254_intsrc; static u_int32_t i8254_lastcount; static u_int32_t i8254_offset; +static int (*i8254_pending)(struct intsrc *); static int i8254_ticked; -static struct intsrc *i8254_intsrc; #ifndef BURN_BRIDGES /* * XXX new_function and timer_func should not handle clockframes, but @@ -934,6 +935,9 @@ cpu_initclocks() /* Finish initializing 8254 timer 0. */ intr_add_handler("clk", 0, (driver_intr_t *)clkintr, NULL, INTR_TYPE_CLK | INTR_FAST, NULL); + i8254_intsrc = intr_lookup_source(0); + if (i8254_intsrc != NULL) + i8254_pending = i8254_intsrc->is_pic->pic_source_pending; /* Initialize RTC. */ writertc(RTC_STATUSA, rtc_statusa); @@ -947,7 +951,6 @@ cpu_initclocks() intr_add_handler("rtc", 8, (driver_intr_t *)rtcintr, NULL, INTR_TYPE_CLK | INTR_FAST, NULL); - i8254_intsrc = intr_lookup_source(8); writertc(RTC_STATUSB, rtc_statusb); } @@ -1018,8 +1021,7 @@ i8254_get_timecount(struct timecounter *tc) if (count < i8254_lastcount || (!i8254_ticked && (clkintr_pending || ((count < 20 || (!(eflags & PSL_I) && count < timer0_max_count / 2u)) && - i8254_intsrc != NULL && - i8254_intsrc->is_pic->pic_source_pending(i8254_intsrc))))) { + i8254_pending != NULL && i8254_pending(i8254_intsrc))))) { i8254_ticked = 1; i8254_offset += timer0_max_count; } |
