From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
Ricardo Neri <ricardo.neri-calderon@linux.intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Andi Kleen <andi.kleen@intel.com>,
Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>,
Stephane Eranian <eranian@google.com>,
Ravi Shankar <ravi.v.shankar@intel.com>
Subject: [patch 27/29] x86/hpet: Carve out shareable parts of init_one_hpet_msi_clockevent()
Date: Sun, 23 Jun 2019 15:24:07 +0200 [thread overview]
Message-ID: <20190623132436.552451082@linutronix.de> (raw)
In-Reply-To: 20190623132340.463097504@linutronix.de
To finally remove the static channel0/clockevent storage and to utilize the
channel 0 storage in hpet_base, it's required to run time initialize the
clockevent. The MSI clockevents already have a run time init function.
Carve out the parts which can be shared between the legacy and the MSI
implementation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/hpet.c | 34 ++++++++++++++++++++--------------
1 file changed, 20 insertions(+), 14 deletions(-)
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -411,6 +411,25 @@ hpet_clkevt_set_next_event(unsigned long
return res < HPET_MIN_CYCLES ? -ETIME : 0;
}
+static void hpet_init_clockevent(struct hpet_channel *hc, unsigned int rating)
+{
+ struct clock_event_device *evt = &hc->evt;
+
+ evt->rating = rating;
+ evt->irq = hc->irq;
+ evt->name = hc->name;
+ evt->cpumask = cpumask_of(hc->cpu);
+ evt->set_state_oneshot = hpet_clkevt_set_oneshot;
+ evt->set_next_event = hpet_clkevt_set_next_event;
+ evt->set_state_shutdown = hpet_clkevt_shutdown;
+
+ evt->features = CLOCK_EVT_FEAT_ONESHOT;
+ if (hc->boot_cfg & HPET_TN_PERIODIC) {
+ evt->features |= CLOCK_EVT_FEAT_PERIODIC;
+ evt->set_state_periodic = hpet_clkevt_set_periodic;
+ }
+}
+
/*
* The HPET clock event device wrapped in a channel for conversion
*/
@@ -510,23 +529,10 @@ static void init_one_hpet_msi_clockevent
hc->cpu = cpu;
per_cpu(cpu_hpet_channel, cpu) = hc;
- evt->name = hc->name;
hpet_setup_msi_irq(hc);
- evt->irq = hc->irq;
- evt->rating = 110;
- evt->features = CLOCK_EVT_FEAT_ONESHOT;
- if (hc->boot_cfg & HPET_TN_PERIODIC) {
- evt->features |= CLOCK_EVT_FEAT_PERIODIC;
- evt->set_state_periodic = hpet_clkevt_set_periodic;
- }
-
- evt->set_state_shutdown = hpet_clkevt_shutdown;
- evt->set_state_oneshot = hpet_clkevt_set_oneshot;
- evt->set_next_event = hpet_clkevt_set_next_event;
+ hpet_init_clockevent(hc, 110);
evt->tick_resume = hpet_clkevt_msi_resume;
- evt->cpumask = cpumask_of(hc->cpu);
-
clockevents_config_and_register(evt, hpet_freq, HPET_MIN_PROG_DELTA,
0x7FFFFFFF);
}
next prev parent reply other threads:[~2019-06-23 13:28 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-23 13:23 [patch 00/29] x86/hpet: Cleanup the channel management Thomas Gleixner
2019-06-23 13:23 ` [patch 01/29] x86/hpet: Simplify CPU online code Thomas Gleixner
2019-06-27 23:34 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 02/29] x86/hpet: Replace printk(KERN...) with pr_...() Thomas Gleixner
2019-06-27 23:34 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 03/29] x86/hpet: Restructure init code Thomas Gleixner
2019-06-27 23:35 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 04/29] x86/hpet: Remove pointless x86-64 specific #include Thomas Gleixner
2019-06-27 23:36 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 05/29] x86/hpet: Remove unused parameter from hpet_next_event() Thomas Gleixner
2019-06-27 23:36 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 06/29] x86/hpet: Remove the unused hpet_msi_read() function Thomas Gleixner
2019-06-27 23:37 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 07/29] x86/hpet: Mark init functions __init Thomas Gleixner
2019-06-27 23:38 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 08/29] x86/hpet: Sanitize stub functions Thomas Gleixner
2019-06-27 23:39 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 09/29] x86/hpet: Move static and global variables to one place Thomas Gleixner
2019-06-27 23:39 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 10/29] x86/hpet: Shuffle code around for readability sake Thomas Gleixner
2019-06-27 23:40 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 11/29] x86/hpet: Separate counter check out of clocksource register code Thomas Gleixner
2019-06-27 23:41 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 12/29] x86/hpet: Simplify counter validation Thomas Gleixner
2019-06-27 23:41 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 13/29] x86/hpet: Decapitalize and rename EVT_TO_HPET_DEV Thomas Gleixner
2019-06-27 23:42 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 14/29] x86/hpet: Remove not required includes Thomas Gleixner
2019-06-27 23:43 ` [tip:x86/timers] " tip-bot for Ingo Molnar
2019-06-23 13:23 ` [patch 15/29] x86/hpet: Make naming consistent Thomas Gleixner
2019-06-27 23:44 ` [tip:x86/timers] " tip-bot for Ingo Molnar
2019-06-23 13:23 ` [patch 16/29] x86/hpet: Clean up comments Thomas Gleixner
2019-06-27 23:44 ` [tip:x86/timers] " tip-bot for Ingo Molnar
2019-06-23 13:23 ` [patch 17/29] x86/hpet: Coding style cleanup Thomas Gleixner
2019-06-27 23:45 ` [tip:x86/timers] " tip-bot for Ingo Molnar
2019-06-23 13:23 ` [patch 18/29] x86/hpet: Introduce struct hpet_base and struct hpet_channel Thomas Gleixner
2019-06-27 23:46 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:23 ` [patch 19/29] x86/hpet: Use cached channel data Thomas Gleixner
2019-06-27 23:46 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 20/29] x86/hpet: Add mode information to struct hpet_channel Thomas Gleixner
2019-06-27 23:47 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 21/29] x86/hpet: Add function to select a /dev/hpet channel Thomas Gleixner
2019-06-27 23:48 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 22/29] x86/hpet: Rename variables to prepare for switching to channels Thomas Gleixner
2019-06-27 23:49 ` [tip:x86/timers] " tip-bot for Ingo Molnar
2019-06-23 13:24 ` [patch 23/29] x86/hpet: Move clockevents into channels Thomas Gleixner
2019-06-27 23:49 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 24/29] x86/hpet: Use cached info instead of extra flags Thomas Gleixner
2019-06-26 21:20 ` Ingo Molnar
2019-06-27 23:50 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 25/29] x86/hpet: Wrap legacy clockevent in hpet_channel Thomas Gleixner
2019-06-27 23:51 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 26/29] x86/hpet: Consolidate clockevent functions Thomas Gleixner
2019-06-26 21:17 ` Ingo Molnar
2019-06-27 22:44 ` Thomas Gleixner
2019-06-27 22:53 ` Thomas Gleixner
2019-06-28 8:32 ` Ingo Molnar
2019-06-27 23:51 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` Thomas Gleixner [this message]
2019-06-27 23:52 ` [tip:x86/timers] x86/hpet: Carve out shareable parts of init_one_hpet_msi_clockevent() tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 28/29] x86/hpet: Use common init for legacy clockevent Thomas Gleixner
2019-06-26 21:13 ` Ingo Molnar
2019-06-27 23:53 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-23 13:24 ` [patch 29/29] x86/hpet: Use channel for legacy clockevent storage Thomas Gleixner
2019-06-27 23:53 ` [tip:x86/timers] " tip-bot for Thomas Gleixner
2019-06-26 21:22 ` [patch 00/29] x86/hpet: Cleanup the channel management Ingo Molnar
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