diff options
Diffstat (limited to 'hw/net/rtl8139.c')
| -rw-r--r-- | hw/net/rtl8139.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c index b0d6c40f58..68e43f3d48 100644 --- a/hw/net/rtl8139.c +++ b/hw/net/rtl8139.c @@ -64,7 +64,7 @@ /* debug RTL8139 card */ //#define DEBUG_RTL8139 1 -#define PCI_FREQUENCY 33000000L +#define PCI_PERIOD 30 /* 30 ns period = 33.333333 Mhz frequency */ #define SET_MASKED(input, mask, curr) \ ( ( (input) & ~(mask) ) | ( (curr) & (mask) ) ) @@ -2834,8 +2834,7 @@ static void rtl8139_io_writew(void *opaque, uint8_t addr, uint32_t val) static void rtl8139_set_next_tctr_time(RTL8139State *s) { - const uint64_t ns_per_period = - muldiv64(0x100000000LL, get_ticks_per_sec(), PCI_FREQUENCY); + const uint64_t ns_per_period = (uint64_t)PCI_PERIOD << 32; DPRINTF("entered rtl8139_set_next_tctr_time\n"); @@ -2853,7 +2852,7 @@ static void rtl8139_set_next_tctr_time(RTL8139State *s) if (!s->TimerInt) { timer_del(s->timer); } else { - uint64_t delta = muldiv64(s->TimerInt, get_ticks_per_sec(), PCI_FREQUENCY); + uint64_t delta = (uint64_t)s->TimerInt * PCI_PERIOD; if (s->TCTR_base + delta <= qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)) { delta += ns_per_period; } @@ -3127,8 +3126,8 @@ static uint32_t rtl8139_io_readl(void *opaque, uint8_t addr) break; case Timer: - ret = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - s->TCTR_base, - PCI_FREQUENCY, get_ticks_per_sec()); + ret = (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - s->TCTR_base) / + PCI_PERIOD; DPRINTF("TCTR Timer read val=0x%08x\n", ret); break; @@ -3222,8 +3221,7 @@ static void rtl8139_pre_save(void *opaque) int64_t current_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); /* for migration to older versions */ - s->TCTR = muldiv64(current_time - s->TCTR_base, PCI_FREQUENCY, - get_ticks_per_sec()); + s->TCTR = (current_time - s->TCTR_base) / PCI_PERIOD; s->rtl8139_mmio_io_addr_dummy = 0; } |