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[Qemu-devel] [PULL 08/12] cuda: minor cosmetic tidy-ups to get_next_irq_
From: |
David Gibson |
Subject: |
[Qemu-devel] [PULL 08/12] cuda: minor cosmetic tidy-ups to get_next_irq_time() |
Date: |
Mon, 12 Feb 2018 14:40:50 +1100 |
From: Mark Cave-Ayland <address@hidden>
Signed-off-by: Mark Cave-Ayland <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Signed-off-by: David Gibson <address@hidden>
---
hw/misc/macio/cuda.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index d4a52fbddb..729905236c 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -184,36 +184,37 @@ static void set_counter(CUDAState *s, CUDATimer *ti,
unsigned int val)
cuda_timer_update(s, ti, ti->load_time);
}
-static int64_t get_next_irq_time(CUDATimer *s, int64_t current_time)
+static int64_t get_next_irq_time(CUDATimer *ti, int64_t current_time)
{
int64_t d, next_time;
unsigned int counter;
/* current counter value */
- d = muldiv64(current_time - s->load_time,
+ d = muldiv64(current_time - ti->load_time,
CUDA_TIMER_FREQ, NANOSECONDS_PER_SECOND);
/* the timer goes down from latch to -1 (period of latch + 2) */
- if (d <= (s->counter_value + 1)) {
- counter = (s->counter_value - d) & 0xffff;
+ if (d <= (ti->counter_value + 1)) {
+ counter = (ti->counter_value - d) & 0xffff;
} else {
- counter = (d - (s->counter_value + 1)) % (s->latch + 2);
- counter = (s->latch - counter) & 0xffff;
+ counter = (d - (ti->counter_value + 1)) % (ti->latch + 2);
+ counter = (ti->latch - counter) & 0xffff;
}
/* Note: we consider the irq is raised on 0 */
if (counter == 0xffff) {
- next_time = d + s->latch + 1;
+ next_time = d + ti->latch + 1;
} else if (counter == 0) {
- next_time = d + s->latch + 2;
+ next_time = d + ti->latch + 2;
} else {
next_time = d + counter;
}
CUDA_DPRINTF("latch=%d counter=%" PRId64 " delta_next=%" PRId64 "\n",
- s->latch, d, next_time - d);
+ ti->latch, d, next_time - d);
next_time = muldiv64(next_time, NANOSECONDS_PER_SECOND, CUDA_TIMER_FREQ) +
- s->load_time;
- if (next_time <= current_time)
+ ti->load_time;
+ if (next_time <= current_time) {
next_time = current_time + 1;
+ }
return next_time;
}
--
2.14.3
- [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180212, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 02/12] hw/ppc: rename functions in comments, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 05/12] spapr: set vsmt to MAX(8, smp_threads), David Gibson, 2018/02/11
- [Qemu-devel] [PULL 04/12] cuda: don't allow writes to port output pins, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 01/12] spapr: add missing break in h_get_cpu_characteristics(), David Gibson, 2018/02/11
- [Qemu-devel] [PULL 09/12] cuda: don't call cuda_update() when writing to ACR register, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 03/12] cuda: do not use old_mmio accesses, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 07/12] cuda: rename frequency property to tb_frequency, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 11/12] cuda: factor out timebase-derived counter value and load time, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 06/12] cuda: introduce CUDAState parameter to get_counter(), David Gibson, 2018/02/11
- [Qemu-devel] [PULL 08/12] cuda: minor cosmetic tidy-ups to get_next_irq_time(),
David Gibson <=
- [Qemu-devel] [PULL 10/12] cuda: set timer 1 frequency property to CUDA_TIMER_FREQ, David Gibson, 2018/02/11
- [Qemu-devel] [PULL 12/12] misc: introduce new mos6522 VIA device and enable it for ppc builds, David Gibson, 2018/02/11
- Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180212, Peter Maydell, 2018/02/12
- Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180212, Laurent Vivier, 2018/02/12