From: hongzha1 <hongzhan.chen@intel.com>
To: Xenomai@xenomai.org
Subject: [PATCH 08/10] dovetail/clock: implement pipeline_set_timer_shot to trigger tick shot
Date: Mon, 11 Jan 2021 01:43:16 -0500 [thread overview]
Message-ID: <20210111064318.6154-8-hongzhan.chen@intel.com> (raw)
In-Reply-To: <20210111064318.6154-1-hongzhan.chen@intel.com>
Signed-off-by: hongzha1 <hongzhan.chen@intel.com>
---
.../cobalt/kernel/dovetail/pipeline/clock.h | 4 +++-
kernel/cobalt/dovetail/tick.c | 24 +++++++++++++++++++
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/include/cobalt/kernel/dovetail/pipeline/clock.h b/include/cobalt/kernel/dovetail/pipeline/clock.h
index 28d89b44b..ce9a5c867 100644
--- a/include/cobalt/kernel/dovetail/pipeline/clock.h
+++ b/include/cobalt/kernel/dovetail/pipeline/clock.h
@@ -11,6 +11,8 @@
struct timespec64;
+extern inline void xnproxy_timer_set(unsigned long delta);
+
static inline u64 pipeline_read_cycle_counter(void)
{
/* Read the raw cycle counter of the core clock. */
@@ -26,7 +28,7 @@ static inline void pipeline_set_timer_shot(unsigned long cycles)
* pipeline_set_timer_shot() should not be part of the
* pipeline interface.
*/
- TODO();
+ xnproxy_timer_set(cycles);
}
static inline const char *pipeline_timer_name(void)
diff --git a/kernel/cobalt/dovetail/tick.c b/kernel/cobalt/dovetail/tick.c
index 6a196496c..58662e94e 100644
--- a/kernel/cobalt/dovetail/tick.c
+++ b/kernel/cobalt/dovetail/tick.c
@@ -16,6 +16,30 @@ extern struct xnintr nktimer;
static DEFINE_PER_CPU(struct clock_proxy_device *, proxy_device);
+inline void xnproxy_timer_set(unsigned long delta)
+{
+ struct clock_proxy_device *dev = __this_cpu_read(proxy_device);
+ struct clock_event_device *real_dev = dev->real_device;
+ int ret;
+ u64 cycles;
+
+ if (delta <= 0)
+ delta = real_dev->min_delta_ns;
+ else {
+ delta = min_t(int64_t, delta,
+ (int64_t)real_dev->max_delta_ns);
+ delta = max_t(int64_t, delta,
+ (int64_t)real_dev->min_delta_ns);
+ }
+ cycles = ((u64)delta * real_dev->mult) >> real_dev->shift;
+
+ ret = real_dev->set_next_event(cycles, real_dev);
+ if (ret) {
+ ret = real_dev->set_next_event(real_dev->min_delta_ticks,
+ real_dev);
+ }
+}
+
static int proxy_set_next_ktime(ktime_t expires,
struct clock_event_device *proxy_dev)
{
--
2.17.1
next prev parent reply other threads:[~2021-01-11 6:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-11 6:43 [PATCH 01/10] dovetail/sirq: implement sirq request and free and post hongzha1
2021-01-11 6:43 ` [PATCH 02/10] dovetail/clock: implement pipeline_read_cycle_counter hongzha1
2021-01-11 17:26 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 03/10] dovetail/clock: implement pipeline_get_host_time hongzha1
2021-01-11 17:26 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 04/10] dovetail/sched: implement pipeline_init_shadow_tcb and pipeline_init_root_tcb hongzha1
2021-01-11 17:30 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 05/10] dovetail/init: implement Xenomai stage enabling and disabling hongzha1
2021-01-11 17:31 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 06/10] dovetail/pipeline: implement oob irq request and free and post for both TIMER_OOB_IPI and RESCHEDULE_OOB_IPI hongzha1
2021-01-12 16:39 ` Philippe Gerum
2021-01-12 16:47 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 07/10] dovetail/tick: implement proxy tick device installing and uninstalling hongzha1
2021-01-11 6:43 ` hongzha1 [this message]
2021-01-11 6:43 ` [PATCH 09/10] dovetail/clock: implement pipeline_timer_name to get name of real device hongzha1
2021-01-12 1:20 ` chensong
2021-01-12 1:35 ` Chen, Hongzhan
2021-01-12 1:41 ` chensong
2021-01-12 16:52 ` Philippe Gerum
2021-01-11 6:43 ` [PATCH 10/10] dovetail/kevents: dovetail: implement handle_ptrace_cont hongzha1
2021-01-11 12:17 ` [PATCH 01/10] dovetail/sirq: implement sirq request and free and post Jan Kiszka
2021-01-11 13:05 ` Philippe Gerum
2021-01-11 13:16 ` Jan Kiszka
2021-01-11 13:29 ` Philippe Gerum
2021-01-11 17:23 ` Philippe Gerum
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