From: "周琰杰 (Zhou Yanjie)" <zhouyanjie@wanyeetech.com>
To: daniel.lezcano@linaro.org, tglx@linutronix.de
Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com,
rick.tyliu@ingenic.com, sihui.liu@ingenic.com,
jun.jiang@ingenic.com, sernia.zhou@foxmail.com,
paul@crapouillou.net
Subject: [PATCH v2 2/2] clocksource: Ingenic: Add SMP/SMT support for sysost driver.
Date: Sat, 5 Jun 2021 00:31:46 +0800 [thread overview]
Message-ID: <1622824306-30987-3-git-send-email-zhouyanjie@wanyeetech.com> (raw)
In-Reply-To: <1622824306-30987-1-git-send-email-zhouyanjie@wanyeetech.com>
The OST in Ingenic XBurst®2 SoCs such as X2000 and X2100, has a global
timer and two or four percpu timers, add support for the percpu timers.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
---
Notes:
v1->v2:
1.Fix bug in ingenic_ost_global_timer_recalc_rate().
2.Add a backpointer to the ingenic_ost structure.
3.Remove unnecessary spinlock.
4.Use "ret = ost->irq" instead "ret = -EINVAL".
5.Use "%d" instead "%x" in pr_crit().
drivers/clocksource/ingenic-sysost.c | 315 ++++++++++++++++++++++++++---------
1 file changed, 236 insertions(+), 79 deletions(-)
diff --git a/drivers/clocksource/ingenic-sysost.c b/drivers/clocksource/ingenic-sysost.c
index a129840..6f080e4 100644
--- a/drivers/clocksource/ingenic-sysost.c
+++ b/drivers/clocksource/ingenic-sysost.c
@@ -4,6 +4,7 @@
* Copyright (c) 2020 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
*/
+#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
@@ -13,6 +14,8 @@
#include <linux/mfd/syscon.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/overflow.h>
#include <linux/sched_clock.h>
#include <linux/slab.h>
#include <linux/syscore_ops.h>
@@ -21,10 +24,14 @@
/* OST register offsets */
#define OST_REG_OSTCCR 0x00
+#define OST_REG_OSTER 0x04
#define OST_REG_OSTCR 0x08
#define OST_REG_OSTFR 0x0c
+#define OST_REG_OSTCNTH 0x0c
#define OST_REG_OSTMR 0x10
+#define OST_REG_OSTCNTL 0x10
#define OST_REG_OST1DFR 0x14
+#define OST_REG_OSTCNTB 0x14
#define OST_REG_OST1CNT 0x18
#define OST_REG_OST2CNTL 0x20
#define OST_REG_OSTCNT2HBUF 0x24
@@ -55,13 +62,23 @@
#define OSTECR_OST1ENC BIT(0)
#define OSTECR_OST2ENC BIT(1)
+enum ingenic_ost_version {
+ ID_X1000,
+ ID_X2000,
+};
+
struct ingenic_soc_info {
+ enum ingenic_ost_version version;
+ const struct ingenic_ost_clk_info *clk_info;
+
unsigned int num_channels;
+ unsigned int base_offset;
};
struct ingenic_ost_clk_info {
struct clk_init_data init_data;
- u8 ostccr_reg;
+ unsigned int idx;
+ u32 ostcntl_reg;
};
struct ingenic_ost_clk {
@@ -71,15 +88,27 @@ struct ingenic_ost_clk {
const struct ingenic_ost_clk_info *info;
};
+struct ingenic_ost_timer {
+ void __iomem *base;
+ unsigned int cpu;
+ unsigned int channel;
+ struct clock_event_device cevt;
+ struct ingenic_ost *ost;
+ struct clk *clk;
+ char name[20];
+};
+
struct ingenic_ost {
void __iomem *base;
const struct ingenic_soc_info *soc_info;
- struct clk *clk, *percpu_timer_clk, *global_timer_clk;
- struct clock_event_device cevt;
+ struct clk *clk, *global_timer_clk;
+ struct device_node *np;
struct clocksource cs;
- char name[20];
struct clk_hw_onecell_data *clocks;
+ struct ingenic_ost_timer __percpu *timers;
+
+ int irq;
};
static struct ingenic_ost *ingenic_ost;
@@ -94,11 +123,12 @@ static unsigned long ingenic_ost_percpu_timer_recalc_rate(struct clk_hw *hw,
{
struct ingenic_ost_clk *ost_clk = to_ost_clk(hw);
const struct ingenic_ost_clk_info *info = ost_clk->info;
+ struct ingenic_ost_timer *timer = per_cpu_ptr(ost_clk->ost->timers, info->idx);
unsigned int prescale;
- prescale = readl(ost_clk->ost->base + info->ostccr_reg);
+ prescale = readl(timer->base + OST_REG_OSTCCR);
- prescale = (prescale & OSTCCR_PRESCALE1_MASK) >> OSTCCR_PRESCALE1_LSB;
+ prescale = FIELD_GET(OSTCCR_PRESCALE1_MASK, prescale);
return parent_rate >> (prescale * 2);
}
@@ -108,11 +138,15 @@ static unsigned long ingenic_ost_global_timer_recalc_rate(struct clk_hw *hw,
{
struct ingenic_ost_clk *ost_clk = to_ost_clk(hw);
const struct ingenic_ost_clk_info *info = ost_clk->info;
+ struct ingenic_ost_timer *timer = per_cpu_ptr(ost_clk->ost->timers, info->idx);
unsigned int prescale;
- prescale = readl(ost_clk->ost->base + info->ostccr_reg);
+ prescale = readl(timer->base + OST_REG_OSTCCR);
- prescale = (prescale & OSTCCR_PRESCALE2_MASK) >> OSTCCR_PRESCALE2_LSB;
+ if (ost_clk->ost->soc_info->version >= ID_X2000)
+ prescale = FIELD_GET(OSTCCR_PRESCALE1_MASK, prescale);
+ else
+ prescale = FIELD_GET(OSTCCR_PRESCALE2_MASK, prescale);
return parent_rate >> (prescale * 2);
}
@@ -147,12 +181,13 @@ static int ingenic_ost_percpu_timer_set_rate(struct clk_hw *hw, unsigned long re
{
struct ingenic_ost_clk *ost_clk = to_ost_clk(hw);
const struct ingenic_ost_clk_info *info = ost_clk->info;
+ struct ingenic_ost_timer *timer = per_cpu_ptr(ost_clk->ost->timers, info->idx);
u8 prescale = ingenic_ost_get_prescale(parent_rate, req_rate);
int val;
- val = readl(ost_clk->ost->base + info->ostccr_reg);
+ val = readl(timer->base + OST_REG_OSTCCR);
val = (val & ~OSTCCR_PRESCALE1_MASK) | (prescale << OSTCCR_PRESCALE1_LSB);
- writel(val, ost_clk->ost->base + info->ostccr_reg);
+ writel(val, timer->base + OST_REG_OSTCCR);
return 0;
}
@@ -162,12 +197,18 @@ static int ingenic_ost_global_timer_set_rate(struct clk_hw *hw, unsigned long re
{
struct ingenic_ost_clk *ost_clk = to_ost_clk(hw);
const struct ingenic_ost_clk_info *info = ost_clk->info;
+ struct ingenic_ost_timer *timer = per_cpu_ptr(ost_clk->ost->timers, info->idx);
u8 prescale = ingenic_ost_get_prescale(parent_rate, req_rate);
int val;
- val = readl(ost_clk->ost->base + info->ostccr_reg);
- val = (val & ~OSTCCR_PRESCALE2_MASK) | (prescale << OSTCCR_PRESCALE2_LSB);
- writel(val, ost_clk->ost->base + info->ostccr_reg);
+ val = readl(timer->base + OST_REG_OSTCCR);
+
+ if (ost_clk->ost->soc_info->version >= ID_X2000)
+ val = (val & ~OSTCCR_PRESCALE1_MASK) | (prescale << OSTCCR_PRESCALE1_LSB);
+ else
+ val = (val & ~OSTCCR_PRESCALE2_MASK) | (prescale << OSTCCR_PRESCALE2_LSB);
+
+ writel(val, timer->base + OST_REG_OSTCCR);
return 0;
}
@@ -195,7 +236,42 @@ static const struct ingenic_ost_clk_info x1000_ost_clk_info[] = {
.ops = &ingenic_ost_percpu_timer_ops,
.flags = CLK_SET_RATE_UNGATE,
},
- .ostccr_reg = OST_REG_OSTCCR,
+ .idx = 0,
+ },
+
+ [OST_CLK_GLOBAL_TIMER] = {
+ .init_data = {
+ .name = "global timer",
+ .parent_names = ingenic_ost_clk_parents,
+ .num_parents = ARRAY_SIZE(ingenic_ost_clk_parents),
+ .ops = &ingenic_ost_global_timer_ops,
+ .flags = CLK_SET_RATE_UNGATE,
+ },
+ .ostcntl_reg = OST_REG_OST2CNTL,
+ },
+};
+
+static const struct ingenic_ost_clk_info x2000_ost_clk_info[] = {
+ [OST_CLK_PERCPU_TIMER0] = {
+ .init_data = {
+ .name = "percpu timer0",
+ .parent_names = ingenic_ost_clk_parents,
+ .num_parents = ARRAY_SIZE(ingenic_ost_clk_parents),
+ .ops = &ingenic_ost_percpu_timer_ops,
+ .flags = CLK_SET_RATE_UNGATE,
+ },
+ .idx = 0,
+ },
+
+ [OST_CLK_PERCPU_TIMER1] = {
+ .init_data = {
+ .name = "percpu timer1",
+ .parent_names = ingenic_ost_clk_parents,
+ .num_parents = ARRAY_SIZE(ingenic_ost_clk_parents),
+ .ops = &ingenic_ost_percpu_timer_ops,
+ .flags = CLK_SET_RATE_UNGATE,
+ },
+ .idx = 1,
},
[OST_CLK_GLOBAL_TIMER] = {
@@ -206,7 +282,7 @@ static const struct ingenic_ost_clk_info x1000_ost_clk_info[] = {
.ops = &ingenic_ost_global_timer_ops,
.flags = CLK_SET_RATE_UNGATE,
},
- .ostccr_reg = OST_REG_OSTCCR,
+ .ostcntl_reg = OST_REG_OSTCNTL,
},
};
@@ -215,7 +291,7 @@ static u64 notrace ingenic_ost_global_timer_read_cntl(void)
struct ingenic_ost *ost = ingenic_ost;
unsigned int count;
- count = readl(ost->base + OST_REG_OST2CNTL);
+ count = readl(ost->base + ost->soc_info->clk_info->ostcntl_reg);
return count;
}
@@ -225,16 +301,21 @@ static u64 notrace ingenic_ost_clocksource_read(struct clocksource *cs)
return ingenic_ost_global_timer_read_cntl();
}
-static inline struct ingenic_ost *to_ingenic_ost(struct clock_event_device *evt)
+static inline struct ingenic_ost_timer *
+to_ingenic_ost_timer(struct clock_event_device *evt)
{
- return container_of(evt, struct ingenic_ost, cevt);
+ return container_of(evt, struct ingenic_ost_timer, cevt);
}
static int ingenic_ost_cevt_set_state_shutdown(struct clock_event_device *evt)
{
- struct ingenic_ost *ost = to_ingenic_ost(evt);
+ struct ingenic_ost_timer *timer = to_ingenic_ost_timer(evt);
+ struct ingenic_ost *ost = timer->ost;
- writel(OSTECR_OST1ENC, ost->base + OST_REG_OSTECR);
+ if (ost->soc_info->version >= ID_X2000)
+ writel(0, timer->base + OST_REG_OSTER);
+ else
+ writel(OSTECR_OST1ENC, timer->base + OST_REG_OSTECR);
return 0;
}
@@ -242,26 +323,34 @@ static int ingenic_ost_cevt_set_state_shutdown(struct clock_event_device *evt)
static int ingenic_ost_cevt_set_next(unsigned long next,
struct clock_event_device *evt)
{
- struct ingenic_ost *ost = to_ingenic_ost(evt);
-
- writel((u32)~OSTFR_FFLAG, ost->base + OST_REG_OSTFR);
- writel(next, ost->base + OST_REG_OST1DFR);
- writel(OSTCR_OST1CLR, ost->base + OST_REG_OSTCR);
- writel(OSTESR_OST1ENS, ost->base + OST_REG_OSTESR);
- writel((u32)~OSTMR_FMASK, ost->base + OST_REG_OSTMR);
+ struct ingenic_ost_timer *timer = to_ingenic_ost_timer(evt);
+ struct ingenic_ost *ost = timer->ost;
+
+ writel((u32)~OSTFR_FFLAG, timer->base + OST_REG_OSTFR);
+ writel(next, timer->base + OST_REG_OST1DFR);
+ writel(OSTCR_OST1CLR, timer->base + OST_REG_OSTCR);
+
+ if (ost->soc_info->version >= ID_X2000) {
+ writel(OSTESR_OST1ENS, timer->base + OST_REG_OSTER);
+ } else {
+ writel(OSTESR_OST1ENS, timer->base + OST_REG_OSTESR);
+ writel((u32)~OSTMR_FMASK, timer->base + OST_REG_OSTMR);
+ }
return 0;
}
static irqreturn_t ingenic_ost_cevt_cb(int irq, void *dev_id)
{
- struct clock_event_device *evt = dev_id;
- struct ingenic_ost *ost = to_ingenic_ost(evt);
+ struct ingenic_ost_timer *timer = dev_id;
+ struct ingenic_ost *ost = timer->ost;
- writel(OSTECR_OST1ENC, ost->base + OST_REG_OSTECR);
+ if (ost->soc_info->version >= ID_X2000)
+ writel(0, timer->base + OST_REG_OSTER);
+ else
+ writel(OSTECR_OST1ENC, timer->base + OST_REG_OSTECR);
- if (evt->event_handler)
- evt->event_handler(evt);
+ timer->cevt.event_handler(&timer->cevt);
return IRQ_HANDLED;
}
@@ -271,6 +360,7 @@ static int __init ingenic_ost_register_clock(struct ingenic_ost *ost,
struct clk_hw_onecell_data *clocks)
{
struct ingenic_ost_clk *ost_clk;
+ struct ingenic_ost_timer *timer = per_cpu_ptr(ost->timers, info->idx);
int val, err;
ost_clk = kzalloc(sizeof(*ost_clk), GFP_KERNEL);
@@ -283,9 +373,9 @@ static int __init ingenic_ost_register_clock(struct ingenic_ost *ost,
ost_clk->ost = ost;
/* Reset clock divider */
- val = readl(ost->base + info->ostccr_reg);
- val &= ~(OSTCCR_PRESCALE1_MASK | OSTCCR_PRESCALE2_MASK);
- writel(val, ost->base + info->ostccr_reg);
+ val = readl(timer->base + OST_REG_OSTCCR);
+ val &= ~(OSTCCR_PRESCALE1_MASK);
+ writel(val, timer->base + OST_REG_OSTCCR);
err = clk_hw_register(NULL, &ost_clk->hw);
if (err) {
@@ -309,57 +399,51 @@ static struct clk * __init ingenic_ost_get_clock(struct device_node *np, int id)
return of_clk_get_from_provider(&args);
}
-static int __init ingenic_ost_percpu_timer_init(struct device_node *np,
- struct ingenic_ost *ost)
+static int __init ingenic_ost_setup_cevt(unsigned int cpu)
{
- unsigned int timer_virq, channel = OST_CLK_PERCPU_TIMER;
+ struct ingenic_ost *ost = ingenic_ost;
+ struct ingenic_ost_timer *timer = this_cpu_ptr(ost->timers);
unsigned long rate;
int err;
- ost->percpu_timer_clk = ingenic_ost_get_clock(np, channel);
- if (IS_ERR(ost->percpu_timer_clk))
- return PTR_ERR(ost->percpu_timer_clk);
+ timer->clk = ingenic_ost_get_clock(ost->np, timer->channel);
+ if (IS_ERR(timer->clk))
+ return PTR_ERR(timer->clk);
- err = clk_prepare_enable(ost->percpu_timer_clk);
+ err = clk_prepare_enable(timer->clk);
if (err)
goto err_clk_put;
- rate = clk_get_rate(ost->percpu_timer_clk);
+ rate = clk_get_rate(timer->clk);
if (!rate) {
err = -EINVAL;
goto err_clk_disable;
}
- timer_virq = of_irq_get(np, 0);
- if (!timer_virq) {
- err = -EINVAL;
- goto err_clk_disable;
- }
+ snprintf(timer->name, sizeof(timer->name), "OST percpu timer%u", cpu);
- snprintf(ost->name, sizeof(ost->name), "OST percpu timer");
+ /* Unmask full comparison match interrupt */
+ writel((u32)~OSTMR_FMASK, timer->base + OST_REG_OSTMR);
- err = request_irq(timer_virq, ingenic_ost_cevt_cb, IRQF_TIMER,
- ost->name, &ost->cevt);
- if (err)
- goto err_irq_dispose_mapping;
+ timer->cpu = smp_processor_id();
+ timer->cevt.cpumask = cpumask_of(smp_processor_id());
+ timer->cevt.features = CLOCK_EVT_FEAT_ONESHOT;
+ timer->cevt.name = timer->name;
+ timer->cevt.rating = 400;
+ timer->cevt.set_state_shutdown = ingenic_ost_cevt_set_state_shutdown;
+ timer->cevt.set_next_event = ingenic_ost_cevt_set_next;
- ost->cevt.cpumask = cpumask_of(smp_processor_id());
- ost->cevt.features = CLOCK_EVT_FEAT_ONESHOT;
- ost->cevt.name = ost->name;
- ost->cevt.rating = 400;
- ost->cevt.set_state_shutdown = ingenic_ost_cevt_set_state_shutdown;
- ost->cevt.set_next_event = ingenic_ost_cevt_set_next;
+ clockevents_config_and_register(&timer->cevt, rate, 4, 0xffffffff);
- clockevents_config_and_register(&ost->cevt, rate, 4, 0xffffffff);
+ if (ost->soc_info->version >= ID_X2000)
+ enable_percpu_irq(ost->irq, IRQ_TYPE_NONE);
return 0;
-err_irq_dispose_mapping:
- irq_dispose_mapping(timer_virq);
err_clk_disable:
- clk_disable_unprepare(ost->percpu_timer_clk);
+ clk_disable_unprepare(timer->clk);
err_clk_put:
- clk_put(ost->percpu_timer_clk);
+ clk_put(timer->clk);
return err;
}
@@ -385,11 +469,14 @@ static int __init ingenic_ost_global_timer_init(struct device_node *np,
goto err_clk_disable;
}
- /* Clear counter CNT registers */
- writel(OSTCR_OST2CLR, ost->base + OST_REG_OSTCR);
-
- /* Enable OST channel */
- writel(OSTESR_OST2ENS, ost->base + OST_REG_OSTESR);
+ /* Clear counter CNT registers and enable OST channel */
+ if (ost->soc_info->version >= ID_X2000) {
+ writel(OSTCR_OST1CLR, ost->base + OST_REG_OSTCR);
+ writel(OSTESR_OST1ENS, ost->base + OST_REG_OSTER);
+ } else {
+ writel(OSTCR_OST2CLR, ost->base + OST_REG_OSTCR);
+ writel(OSTESR_OST2ENS, ost->base + OST_REG_OSTESR);
+ }
cs->name = "ingenic-ost";
cs->rating = 400;
@@ -411,18 +498,33 @@ static int __init ingenic_ost_global_timer_init(struct device_node *np,
}
static const struct ingenic_soc_info x1000_soc_info = {
+ .version = ID_X1000,
+ .clk_info = x1000_ost_clk_info,
+
.num_channels = 2,
};
+static const struct ingenic_soc_info x2000_soc_info = {
+ .version = ID_X2000,
+ .clk_info = x2000_ost_clk_info,
+
+ .num_channels = 3,
+ .base_offset = 0x100,
+};
+
static const struct of_device_id __maybe_unused ingenic_ost_of_matches[] __initconst = {
{ .compatible = "ingenic,x1000-ost", .data = &x1000_soc_info },
+ { .compatible = "ingenic,x2000-ost", .data = &x2000_soc_info },
{ /* sentinel */ }
};
static int __init ingenic_ost_probe(struct device_node *np)
{
const struct of_device_id *id = of_match_node(ingenic_ost_of_matches, np);
+ struct ingenic_ost_timer *timer;
struct ingenic_ost *ost;
+ void __iomem *base;
+ unsigned int cpu;
unsigned int i;
int ret;
@@ -430,18 +532,43 @@ static int __init ingenic_ost_probe(struct device_node *np)
if (!ost)
return -ENOMEM;
+ ost->timers = alloc_percpu(struct ingenic_ost_timer);
+ if (!ost->timers) {
+ ret = -ENOMEM;
+ goto err_free_ost;
+ }
+
+ ost->np = np;
+ ost->soc_info = id->data;
+
ost->base = of_io_request_and_map(np, 0, of_node_full_name(np));
if (IS_ERR(ost->base)) {
pr_err("%s: Failed to map OST registers\n", __func__);
ret = PTR_ERR(ost->base);
- goto err_free_ost;
+ goto err_free_timers;
+ }
+
+ if (ost->soc_info->version >= ID_X2000) {
+ base = of_io_request_and_map(np, 1, of_node_full_name(np));
+ if (IS_ERR(base)) {
+ pr_err("%s: Failed to map OST registers\n", __func__);
+ ret = PTR_ERR(base);
+ goto err_free_timers;
+ }
+ }
+
+ ost->irq = irq_of_parse_and_map(np, 0);
+ if (ost->irq < 0) {
+ pr_crit("%s: Cannot to get OST IRQ\n", __func__);
+ ret = ost->irq;
+ goto err_free_timers;
}
ost->clk = of_clk_get_by_name(np, "ost");
if (IS_ERR(ost->clk)) {
- ret = PTR_ERR(ost->clk);
pr_crit("%s: Cannot get OST clock\n", __func__);
- goto err_free_ost;
+ ret = PTR_ERR(ost->clk);
+ goto err_free_timers;
}
ret = clk_prepare_enable(ost->clk);
@@ -450,8 +577,6 @@ static int __init ingenic_ost_probe(struct device_node *np)
goto err_put_clk;
}
- ost->soc_info = id->data;
-
ost->clocks = kzalloc(struct_size(ost->clocks, hws, ost->soc_info->num_channels),
GFP_KERNEL);
if (!ost->clocks) {
@@ -461,8 +586,21 @@ static int __init ingenic_ost_probe(struct device_node *np)
ost->clocks->num = ost->soc_info->num_channels;
- for (i = 0; i < ost->clocks->num; i++) {
- ret = ingenic_ost_register_clock(ost, i, &x1000_ost_clk_info[i], ost->clocks);
+ for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
+ timer = per_cpu_ptr(ost->timers, cpu);
+
+ if (ost->soc_info->version >= ID_X2000)
+ timer->base = base + ost->soc_info->base_offset * cpu;
+ else
+ timer->base = ost->base;
+
+ timer->ost = ost;
+ timer->cpu = cpu;
+ timer->channel = OST_CLK_PERCPU_TIMER + cpu;
+ }
+
+ for (i = 0; i < num_possible_cpus() + 1; i++) {
+ ret = ingenic_ost_register_clock(ost, i, &ost->soc_info->clk_info[i], ost->clocks);
if (ret) {
pr_crit("%s: Cannot register clock %d\n", __func__, i);
goto err_unregister_ost_clocks;
@@ -488,6 +626,8 @@ static int __init ingenic_ost_probe(struct device_node *np)
clk_disable_unprepare(ost->clk);
err_put_clk:
clk_put(ost->clk);
+err_free_timers:
+ free_percpu(ost->timers);
err_free_ost:
kfree(ost);
return ret;
@@ -513,13 +653,29 @@ static int __init ingenic_ost_init(struct device_node *np)
ret = ingenic_ost_global_timer_init(np, ost);
if (ret) {
- pr_crit("%s: Unable to init global timer: %x\n", __func__, ret);
+ pr_crit("%s: Unable to init global timer: %d\n", __func__, ret);
goto err_free_ingenic_ost;
}
- ret = ingenic_ost_percpu_timer_init(np, ost);
- if (ret)
+ if (ost->soc_info->version >= ID_X2000)
+ ret = request_percpu_irq(ost->irq, ingenic_ost_cevt_cb,
+ "OST percpu timer", ost->timers);
+ else
+ ret = request_irq(ost->irq, ingenic_ost_cevt_cb, IRQF_TIMER,
+ "OST percpu timer", ost->timers);
+
+ if (ret) {
+ pr_crit("%s: Unable to request percpu IRQ: %d\n", __func__, ret);
+ goto err_ost_global_timer_cleanup;
+ }
+
+ /* Setup clock events on each CPU core */
+ ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "Ingenic XBurst: online",
+ ingenic_ost_setup_cevt, NULL);
+ if (ret < 0) {
+ pr_crit("%s: Unable to init percpu timers: %d\n", __func__, ret);
goto err_ost_global_timer_cleanup;
+ }
/* Register the sched_clock at the end as there's no way to undo it */
rate = clk_get_rate(ost->global_timer_clk);
@@ -537,3 +693,4 @@ static int __init ingenic_ost_init(struct device_node *np)
}
TIMER_OF_DECLARE(x1000_ost, "ingenic,x1000-ost", ingenic_ost_init);
+TIMER_OF_DECLARE(x2000_ost, "ingenic,x2000-ost", ingenic_ost_init);
--
2.7.4
next prev parent reply other threads:[~2021-06-04 16:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-04 16:31 Add SMP/SMT support for sysost driver 周琰杰 (Zhou Yanjie)
2021-06-04 16:31 ` [PATCH v2 1/2] clocksource: Ingenic: Rename unreasonable array names 周琰杰 (Zhou Yanjie)
2021-06-16 13:56 ` Daniel Lezcano
2021-06-18 16:03 ` [tip: timers/core] clocksource/drivers/ingenic: " tip-bot2 for 周琰杰
2021-06-04 16:31 ` 周琰杰 (Zhou Yanjie) [this message]
2021-06-10 15:30 ` [PATCH v2 2/2] clocksource: Ingenic: Add SMP/SMT support for sysost driver Paul Cercueil
2021-06-11 15:31 ` Zhou Yanjie
2021-06-11 15:44 ` Paul Cercueil
2021-06-12 15:48 ` 周琰杰
2021-06-14 16:42 ` Paul Cercueil
2021-06-16 14:57 ` Daniel Lezcano
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