This allows us to more easily differentiate between the timebase frequency used to calibrate the MacOS timers and the actual frequency of the hardware clock as indicated by CUDA_TIMER_FREQ.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> --- hw/misc/macio/cuda.c | 10 +++++----- hw/misc/macio/macio.c | 2 +- hw/ppc/mac.h | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c index f036e8d7e1..a200320e7d 100644 --- a/hw/misc/macio/cuda.c +++ b/hw/misc/macio/cuda.c @@ -158,8 +158,8 @@ static unsigned int get_counter(CUDAState *s, CUDATimer *ti) uint64_t current_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); /* Reverse of the tb calculation algorithm that Mac OS X uses on bootup. */ - tb_diff = get_tb(current_time, ti->frequency) - ti->load_time; - d = (tb_diff * 0xBF401675E5DULL) / (ti->frequency << 24); + tb_diff = get_tb(current_time, ti->tb_frequency) - ti->load_time; + d = (tb_diff * 0xBF401675E5DULL) / (ti->tb_frequency << 24); if (ti->index == 0) { /* the timer goes down from latch to -1 (period of latch + 2) */ @@ -179,7 +179,7 @@ static void set_counter(CUDAState *s, CUDATimer *ti, unsigned int val) { CUDA_DPRINTF("T%d.counter=%d\n", 1 + ti->index, val); ti->load_time = get_tb(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), - s->frequency); + s->tb_frequency); ti->counter_value = val; cuda_timer_update(s, ti, ti->load_time); } @@ -878,7 +878,7 @@ static void cuda_realizefn(DeviceState *dev, Error **errp) struct tm tm; s->timers[0].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_timer1, s); - s->timers[0].frequency = s->frequency; + s->timers[0].frequency = s->tb_frequency; s->timers[1].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_timer2, s); s->timers[1].frequency = (SCALE_US * 6000) / 4700; @@ -909,7 +909,7 @@ static void cuda_initfn(Object *obj) } static Property cuda_properties[] = { - DEFINE_PROP_UINT64("frequency", CUDAState, frequency, 0), + DEFINE_PROP_UINT64("timebase-frequency", CUDAState, tb_frequency, 0), DEFINE_PROP_END_OF_LIST() }; diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c index 44f91d1e7f..a639b09e00 100644 --- a/hw/misc/macio/macio.c +++ b/hw/misc/macio/macio.c @@ -451,7 +451,7 @@ void macio_init(PCIDevice *d, macio_state->escc_mem = escc_mem; /* Note: this code is strongly inspirated from the corresponding code in PearPC */ - qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency", + qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "timebase-frequency", macio_state->frequency); qdev_init_nofail(DEVICE(d)); diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h index b501af1653..fa78115c95 100644 --- a/hw/ppc/mac.h +++ b/hw/ppc/mac.h @@ -99,7 +99,7 @@ typedef struct CUDAState { CUDATimer timers[2]; uint32_t tick_offset; - uint64_t frequency; + uint64_t tb_frequency; uint8_t last_b; uint8_t last_acr; -- 2.11.0