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This patch fixes two bugs in cuda emulation:

Browse Source 
- the CUDA timer is always triggered twice, with current code
- SET_TIME command is supposed to send back a 7 bytes packet
(Jocelyn Mayer)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1380 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-04-23 18:16:54 +00:00
parent 111bfab3b5
commit dccfafc4e1
1 changed files with 7 additions and 4 deletions
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11
hw/cuda.c
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@ -178,16 +178,19 @@ static int64_t get_next_irq_time(CUDATimer *s, int64_t current_time)
/* current counter value */
d = muldiv64(current_time - s->load_time,
CUDA_TIMER_FREQ, ticks_per_sec);
if (d <= s->counter_value) {
if (d < s->counter_value) {
next_time = s->counter_value + 1;
} else {
base = ((d - s->counter_value) / s->latch);
} else
{
base = ((d - s->counter_value + 1) / s->latch);
base = (base * s->latch) + s->counter_value;
next_time = base + s->latch;
}
#if 0
#ifdef DEBUG_CUDA
printf("latch=%d counter=%lld delta_next=%lld\n",
s->latch, d, next_time - d);
#endif
#endif
next_time = muldiv64(next_time, ticks_per_sec, CUDA_TIMER_FREQ) +
s->load_time;
@ -505,6 +508,7 @@ static void cuda_receive_packet(CUDAState *s,
cuda_send_packet_to_host(s, obuf, 2);
break;
case CUDA_GET_TIME:
case CUDA_SET_TIME:
/* XXX: add time support ? */
ti = time(NULL) + RTC_OFFSET;
obuf[0] = CUDA_PACKET;
@ -516,7 +520,6 @@ static void cuda_receive_packet(CUDAState *s,
obuf[6] = ti;
cuda_send_packet_to_host(s, obuf, 7);
break;
case CUDA_SET_TIME:
case CUDA_FILE_SERVER_FLAG:
case CUDA_SET_DEVICE_LIST:
case CUDA_SET_AUTO_RATE: