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| author | Blue Swirl <blauwirbel@gmail.com> | 2010-05-30 19:20:07 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2010-05-30 19:20:07 +0000 |
| commit | aa6f63fff62faf2fe9ffba5a789675d49293614d (patch) | |
| tree | e3514c0fe7801b0f3b5337cb6a4224d38eb5df9d | |
| parent | da7ed37955d955b47a538fcfe65ad1cc730e69a5 (diff) | |
| download | qemu-aa6f63fff62faf2fe9ffba5a789675d49293614d.tar.gz | |
mc146818rtc: improve debugging
Add a separate flag for debugging coalesced interrupts.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| -rw-r--r-- | hw/mc146818rtc.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index 571c5931ec..c3e6a70e3d 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -31,6 +31,7 @@ #include "mc146818rtc.h" //#define DEBUG_CMOS +//#define DEBUG_COALESCED #ifdef DEBUG_CMOS # define CMOS_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) @@ -38,6 +39,12 @@ # define CMOS_DPRINTF(format, ...) do { } while (0) #endif +#ifdef DEBUG_COALESCED +# define DPRINTF_C(format, ...) printf(format, ## __VA_ARGS__) +#else +# define DPRINTF_C(format, ...) do { } while (0) +#endif + #define RTC_REINJECT_ON_ACK_COUNT 20 #define RTC_SECONDS 0 @@ -131,9 +138,12 @@ static void rtc_coalesced_timer(void *opaque) if (s->irq_coalesced != 0) { apic_reset_irq_delivered(); s->cmos_data[RTC_REG_C] |= 0xc0; + DPRINTF_C("cmos: injecting from timer\n"); rtc_irq_raise(s->irq); if (apic_get_irq_delivered()) { s->irq_coalesced--; + DPRINTF_C("cmos: coalesced irqs decreased to %d\n", + s->irq_coalesced); } } @@ -164,8 +174,10 @@ static void rtc_timer_update(RTCState *s, int64_t current_time) /* period in 32 Khz cycles */ period = 1 << (period_code - 1); #ifdef TARGET_I386 - if(period != s->period) + if (period != s->period) { s->irq_coalesced = (s->irq_coalesced * s->period) / period; + DPRINTF_C("cmos: coalesced irqs scaled to %d\n", s->irq_coalesced); + } s->period = period; #endif /* compute 32 khz clock */ @@ -198,6 +210,8 @@ static void rtc_periodic_timer(void *opaque) if (!apic_get_irq_delivered()) { s->irq_coalesced++; rtc_coalesced_timer_update(s); + DPRINTF_C("cmos: coalesced irqs increased to %d\n", + s->irq_coalesced); } } else #endif @@ -476,9 +490,13 @@ static uint32_t cmos_ioport_read(void *opaque, uint32_t addr) s->irq_reinject_on_ack_count < RTC_REINJECT_ON_ACK_COUNT) { s->irq_reinject_on_ack_count++; apic_reset_irq_delivered(); + DPRINTF_C("cmos: injecting on ack\n"); qemu_irq_raise(s->irq); - if (apic_get_irq_delivered()) + if (apic_get_irq_delivered()) { s->irq_coalesced--; + DPRINTF_C("cmos: coalesced irqs decreased to %d\n", + s->irq_coalesced); + } break; } #endif |