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From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@kernel.org, linux@armlinux.org.uk,
	ulli.kroll@googlemail.com, linus.walleij@linaro.org,
	shawnguo@kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com,
	will@kernel.org, guoren@kernel.org, bcain@quicinc.com,
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	rcu@vger.kernel.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: juri.lelli@redhat.com, rafael@kernel.org,
	benh@kernel.crashing.org, linus.walleij@linaro.org,
	bsegall@google.com, guoren@kernel.org, pavel@ucw.cz,
	agordeev@linux.ibm.com, linux-arch@vger.kernel.org,
	vincent.guittot@linaro.org, mpe@ellerman.id.au,
	chenhuacai@kernel.org, linux-acpi@vger.kernel.org,
	agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com,
	catalin.marinas@arm.com, xen-devel@lists.xenproject.org,
	mattst88@gmail.com, mturquette@baylibre.com, sammy@sammy.net,
	pmladek@suse.com, linux-pm@vger.kernel.org,
	jiangshanlai@gmail.com, Sascha Hauer <s.hauer@pengutronix.de>,
	linux-um@lists.infradead.org, acme@kernel.org,
	tglx@linutronix.de, linux-omap@vger.kernel.org,
	dietmar.eggemann@arm.com, rth@twiddle.net,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, senozhatsky@chromium.org,
	svens@linux.ibm.com, jolsa@kernel.org, paulus@samba.org,
	mark.rutland@arm.com, linux-ia64@vger.kernel.org,
	dave.hansen@linux.intel.com,
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	anup@brainfault.org, ink@jurassic.park.msu.ru,
	johannes@sipsolutions.net, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\


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WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@kernel.org, linux@armlinux.org.uk,
	ulli.kroll@googlemail.com, linus.walleij@linaro.org,
	shawnguo@kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com,
	will@kernel.org, guoren@kernel.org, bcain@quicinc.com,
	chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org,
	sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de,
	dinguyen@kernel.org, jonas@southpole.se,
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	James.Bottomley@HansenPartnership.com, deller@gmx.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	paul.walmsley@sifive.com, palmer@dabbelt.com,
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	rcu@vger.kernel.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



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From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@kernel.org, linux@armlinux.org.uk,
	ulli.kroll@googlemail.com, linus.walleij@linaro.org,
	shawnguo@kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com,
	will@kernel.org, guoren@kernel.org, bcain@quicinc.com,
	chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org,
	sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de,
	dinguyen@kernel.org, jonas@southpole.se,
	stefan.kristiansson@saunalahti.fi, shorne@gmail.com,
	James.Bottomley@HansenPartnership.com, deller@gmx.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com,
	agordeev@linux.ibm.com, borntraeger@linux.ibm.com,
	svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org,
	davem@davemloft.net, richard@nod.at,
	anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
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	alexander.shishkin@linux.intel.com, jolsa@kernel.org,
	namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu,
	amakhalov@vmware.com, pv-drivers@vmware.com,
	boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com,
	rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz,
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	thierry.reding@gmail.com, jonathanh@nvidia.com,
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	yury.norov@gmail.com, andriy.shevchenko@linux.intel.com,
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	senozhatsky@chromium.org, john.ogness@linutronix.de,
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	rcu@vger.kernel.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



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From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: juri.lelli@redhat.com, rafael@kernel.org,
	benh@kernel.crashing.org, linus.walleij@linaro.org,
	bsegall@google.com, guoren@kernel.org, pavel@ucw.cz,
	agordeev@linux.ibm.com, srivatsa@csail.mit.edu,
	linux-arch@vger.kernel.org, vincent.guittot@linaro.org,
	mpe@ellerman.id.au, chenhuacai@kernel.org,
	linux-acpi@vger.kernel.org, agross@kernel.org, linux-imx@nxp.com,
	catalin.marinas@arm.com, xen-devel@lists.xenproject.org,
	mattst88@gmail.com, borntraeger@linux.ibm.com,
	mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com,
	linux-pm@vger.kernel.org, jiangshanlai@gmail.com,
	Sascha Hauer <s.hauer@pengutronix.de>,
	linux-um@lists.infradead.org, acme@kernel.org,
	tglx@linutronix.de, linux-omap@vger.kernel.org,
	dietmar.eggemann@arm.com, rth@twiddle.net,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
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	svens@linux.ibm.com, jolsa@kernel.org, paulus@samba.org,
	mark.rutland@arm.com, linux-ia64@vger.kernel.org,
	dave.hansen@linux.intel.com,
	virtualization@lists.linux-foundation.org,
	James.Bottomley@HansenPartnership.com, jcmvbkbc@gmail.com,
	thierry.reding@gmail.com, kernel@xen0n.name,
	quic_neeraju@quicinc.com, linux-s390@vger.kernel.org,
	vschneid@redhat.com, john.ogness@linutronix.de,
	ysato@users.sourceforge.jp, linux-sh@vger.kernel.org,
	festevam@gmail.com, deller@gmx.de, daniel.lezcano@linaro.org,
	jonathanh@nvidia.com, mathieu.desnoyers@efficios.com,
	frederic@kernel.org, lenb@kernel.org,
	linux-xtensa@linux-xtensa.org, kernel@pengutronix.de,
	gor@linux.ibm.com, linux-arm-msm@vger.kernel.org,
	linux-alpha@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-arm-kernel@lists.infradead.org, chris@zankel.net,
	sboyd@kernel.org, dinguyen@kernel.org, bristot@redhat.com,
	alexander.shishkin@linux.intel.com, lpieralisi@kernel.org,
	linux@rasmusvillemoes.dk, joel@joelfernandes.org,
	will@kernel.org, boris.ostrovsky@oracle.com, khilman@kernel.org,
	linux-csky@vger.kernel.org, pv-drivers@vmware.com,
	linux-snps-arc@lists.infradead.org, mgorman@suse.de,
	jacob.jun.pan@linux.intel.com, Arnd Bergmann <arnd@arndb.de>,
	ulli.kroll@googlemail.com, vgupta@kernel.org,
	linux-clk@vger.kernel.org, josh@joshtriplett.org,
	rostedt@goodmis.org, rcu@vger.kernel.org, bp@alien8.de,
	bcain@quicinc.com, tsbogend@alpha.franken.de,
	linux-parisc@vger.kernel.org, sudeep.holla@arm.com,
	shawnguo@kernel.org, davem@davemloft.net, dalias@libc.org,
	tony@atomide.com, amakhalov@vmware.com,
	bjorn.andersson@linaro.org, hpa@zytor.com,
	sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org,
	linux-riscv@lists.infradead.org, anton.ivanov@cambridgegreys.com,
	jonas@southpole.se, yury.norov@gmail.com, richard@nod.at,
	x86@kernel.org, linux@armlinux.org.uk, mingo@redhat.com,
	aou@eecs.berkeley.edu, paulmck@kernel.org, hca@linux.ibm.com,
	openrisc@lists.librecores.org, paul.walmsley@sifive.com,
	linux-tegra@vger.kernel.org, namhyung@kernel.org,
	andriy.shevchenko@linux.intel.com, jpoimboe@kernel.org,
	jgross@suse.com, monstr@monstr.eu, linux-mips@vger.kernel.org,
	palmer@dabbelt.com, anup@brainfault.org,
	ink@jurassic.park.msu.ru, johannes@sipsolutions.net,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: juri.lelli@redhat.com, rafael@kernel.org,
	linus.walleij@linaro.org, bsegall@google.com, guoren@kernel.org,
	pavel@ucw.cz, agordeev@linux.ibm.com, srivatsa@csail.mit.edu,
	linux-arch@vger.kernel.org, vincent.guittot@linaro.org,
	chenhuacai@kernel.org, linux-acpi@vger.kernel.org,
	agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com,
	catalin.marinas@arm.com, xen-devel@lists.xenproject.org,
	mattst88@gmail.com, borntraeger@linux.ibm.com,
	mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com,
	linux-pm@vger.kernel.org, jiangshanlai@gmail.com,
	Sascha Hauer <s.hauer@pengutronix.de>,
	linux-um@lists.infradead.org, acme@kernel.org,
	tglx@linutronix.de, linux-omap@vger.kernel.org,
	dietmar.eggemann@arm.com, rth@twiddle.net,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	linux-perf-users@vger.kernel.org, senozhatsky@chromium.org,
	svens@linux.ibm.com, jolsa@kernel.org, paulus@samba.org,
	mark.rutland@arm.com, linux-ia64@vger.kernel.org,
	dave.hansen@linux.intel.com,
	virtualizatio n@lists.linux-foundation.org,
	James.Bottomley@HansenPartnership.com, jcmvbkbc@gmail.com,
	thierry.reding@gmail.com, kernel@xen0n.name,
	quic_neeraju@quicinc.com, linux-s390@vger.kernel.org,
	vschneid@redhat.com, john.ogness@linutronix.de,
	ysato@users.sourceforge.jp, linux-sh@vger.kernel.org,
	festevam@gmail.com, deller@gmx.de, daniel.lezcano@linaro.org,
	jonathanh@nvidia.com, mathieu.desnoyers@efficios.com,
	frederic@kernel.org, lenb@kernel.org,
	linux-xtensa@linux-xtensa.org, kernel@pengutronix.de,
	gor@linux.ibm.com, linux-arm-msm@vger.kernel.org,
	linux-alpha@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	shorne@gmail.com, linux-arm-kernel@lists.infradead.org,
	chris@zankel.net, sboyd@kernel.org, dinguyen@kernel.org,
	bristot@redhat.com, alexander.shishkin@linux.intel.com,
	lpieralisi@kernel.org, linux@rasmusvillemoes.dk,
	joel@joelfernandes.org, will@kernel.org,
	boris.ostrovsky@oracle.com, khilman@kernel.org,
	linux-csky@vger.kernel.org, pv-drivers@vmware.com,
	linux-snps-arc@lists.infradea d.org, mgorman@suse.de,
	jacob.jun.pan@linux.intel.com
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

, Arnd Bergmann <arnd@arndb.de>, ulli.kroll@googlemail.com, vgupta@kernel.org, linux-clk@vger.kernel.org, josh@joshtriplett.org, rostedt@goodmis.org, rcu@vger.kernel.org, bp@alien8.de, bcain@quicinc.com, tsbogend@alpha.franken.de, linux-parisc@vger.kernel.org, sudeep.holla@arm.com, shawnguo@kernel.org, davem@davemloft.net, dalias@libc.org, tony@atomide.com, amakhalov@vmware.com, bjorn.andersson@linaro.org, hpa@zytor.com, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, anton.ivanov@cambridgegreys.com, jonas@southpole.se, yury.norov@gmail.com, richard@nod.at, x86@kernel.org, linux@armlinux.org.uk, mingo@redhat.com, aou@eecs.berkeley.edu, paulmck@kernel.org, hca@linux.ibm.com, stefan.kristiansson@saunalahti.fi, openrisc@lists.librecores.org, paul.walmsley@sifive.com, linux-tegra@vger.kernel.org, namhyung@kernel.org, andriy.shevchenko@linux.intel.com, jpoimboe@kernel.org, jgross@suse.com, monstr@monstr.eu, linux-mips@vger.kernel.org, palmer@dab
 belt.com, anup@brainfault.org, ink@jurassic.park.msu.ru, johannes@sipsolutions.net, linuxppc-dev@lists.ozlabs.org
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev" <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@kernel.org, linux@armlinux.org.uk,
	ulli.kroll@googlemail.com, linus.walleij@linaro.org,
	shawnguo@kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com,
	will@kernel.org, guoren@kernel.org, bcain@quicinc.com,
	chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org,
	sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de,
	dinguyen@kernel.org, jonas@southpole.se,
	stefan.kristiansson@saunalahti.fi, shorne@gmail.com,
	James.Bottomley@HansenPartnership.com, deller@gmx.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com,
	agordeev@linux.ibm.com, borntraeger@linux.ibm.com,
	svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org,
	davem@davemloft.net, richard@nod.at,
	anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
	acme@kernel.org, mark.rutland@arm.com,
	alexander.shishkin@linux.intel.com, jolsa@kernel.org,
	namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu,
	amakhalov@vmware.com, pv-drivers@vmware.com,
	boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com,
	rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz,
	gregkh@linuxfoundation.org, mturquette@baylibre.com,
	sboyd@kernel.org, daniel.lezcano@linaro.org,
	lpieralisi@kernel.org, sudeep.holla@arm.com, agross@kernel.org,
	bjorn.andersson@linaro.org, anup@brainfault.org,
	thierry.reding@gmail.com, jonathanh@nvidia.com,
	jacob.jun.pan@linux.intel.com, Arnd Bergmann <arnd@arndb.de>,
	yury.norov@gmail.com, andriy.shevchenko@linux.intel.com,
	linux@rasmusvillemoes.dk, rostedt@goodmis.org, pmladek@suse.com,
	senozhatsky@chromium.org, john.ogness@linutronix.de,
	paulmck@kernel.org, frederic@kernel.org,
	quic_neeraju@quicinc.com, josh@joshtriplett.org,
	mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com,
	joel@joelfernandes.org, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	bsegall@google.com, mgorman@suse.de, bristot@redhat.com,
	vschneid@redhat.com, jpoimboe@kernel.org,
	linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-snps-arc@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
	linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org,
	linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-mips@vger.kernel.org, openrisc@lists.librecores.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
	linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
	linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	xen-devel@lists.xenproject.org, linux-xtensa@linux-xtensa.org,
	linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-tegra@vger.kernel.org, linux-arch@vger.kernel.org,
	rcu@vger.kernel.org
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 14:27:36 +0000	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method = ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\


WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@kernel.org, linux@armlinux.org.uk,
	ulli.kroll@googlemail.com, linus.walleij@linaro.org,
	shawnguo@kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com,
	will@kernel.org, guoren@kernel.org, bcain@quicinc.com,
	chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org,
	sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de,
	dinguyen@kernel.org, jonas@southpole.se,
	stefan.kristiansson@saunalahti.fi, shorne@gmail.com,
	James.Bottomley@HansenPartnership.com, deller@gmx.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	paul.walmsley@sifive.com, palmer@dabbelt.com, ao
Subject: [PATCH 13/36] cpuidle,dt: Push RCU-idle into driver
Date: Wed, 08 Jun 2022 16:27:36 +0200	[thread overview]
Message-ID: <20220608144516.743744529@infradead.org> (raw)
In-Reply-To: 20220608142723.103523089@infradead.org

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Notably: this converts all dt_init_idle_driver() and
__CPU_PM_CPU_IDLE_ENTER() users for they are inextrably intertwined.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/arm/mach-omap2/cpuidle34xx.c    |    4 ++--
 drivers/acpi/processor_idle.c        |    2 ++
 drivers/cpuidle/cpuidle-arm.c        |    1 +
 drivers/cpuidle/cpuidle-big_little.c |    8 ++++++--
 drivers/cpuidle/cpuidle-psci.c       |    1 +
 drivers/cpuidle/cpuidle-qcom-spm.c   |    1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c  |    1 +
 drivers/cpuidle/dt_idle_states.c     |    2 +-
 include/linux/cpuidle.h              |    4 ++++
 9 files changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1200,6 +1200,8 @@ static int acpi_processor_setup_lpi_stat
 		state->target_residency = lpi->min_residency;
 		if (lpi->arch_flags)
 			state->flags |= CPUIDLE_FLAG_TIMER_STOP;
+		if (lpi->entry_method == ACPI_CSTATE_FFH)
+			state->flags |= CPUIDLE_FLAG_RCU_IDLE;
 		state->enter = acpi_idle_lpi_enter;
 		drv->safe_state_index = i;
 	}
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -53,6 +53,7 @@ static struct cpuidle_driver arm_idle_dr
 	 * handler for idle state index 0.
 	 */
 	.states[0] = {
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter                  = arm_enter_idle_state,
 		.exit_latency           = 1,
 		.target_residency       = 1,
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_lit
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 700,
 		.target_residency	= 2500,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM little-cluster power down",
 	},
@@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big
 		.enter			= bl_enter_powerdown,
 		.exit_latency		= 500,
 		.target_residency	= 2000,
-		.flags			= CPUIDLE_FLAG_TIMER_STOP,
+		.flags			= CPUIDLE_FLAG_TIMER_STOP |
+					  CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "C1",
 		.desc			= "ARM big-cluster power down",
 	},
@@ -124,11 +126,13 @@ static int bl_enter_powerdown(struct cpu
 				struct cpuidle_driver *drv, int idx)
 {
 	cpu_pm_enter();
+	rcu_idle_enter();
 
 	cpu_suspend(0, bl_powerdown_finisher);
 
 	/* signals the MCPM core that CPU is out of low power state */
 	mcpm_cpu_powered_up();
+	rcu_idle_exit();
 
 	cpu_pm_exit();
 
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -357,6 +357,7 @@ static int psci_idle_init_cpu(struct dev
 	 * PSCI idle states relies on architectural WFI to be represented as
 	 * state index 0.
 	 */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = psci_enter_idle_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -72,6 +72,7 @@ static struct cpuidle_driver qcom_spm_id
 	.owner = THIS_MODULE,
 	.states[0] = {
 		.enter			= spm_enter_idle_state,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.exit_latency		= 1,
 		.target_residency	= 1,
 		.power_usage		= UINT_MAX,
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -332,6 +332,7 @@ static int sbi_cpuidle_init_cpu(struct d
 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
 	/* RISC-V architectural WFI to be represented as state index 0. */
+	drv->states[0].flags = CPUIDLE_FLAG_RCU_IDLE;
 	drv->states[0].enter = sbi_cpuidle_enter_state;
 	drv->states[0].exit_latency = 1;
 	drv->states[0].target_residency = 1;
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -77,7 +77,7 @@ static int init_state_node(struct cpuidl
 	if (err)
 		desc = state_node->name;
 
-	idle_state->flags = 0;
+	idle_state->flags = CPUIDLE_FLAG_RCU_IDLE;
 	if (of_property_read_bool(state_node, "local-timer-stop"))
 		idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
 	/*
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -282,14 +282,18 @@ extern s64 cpuidle_governor_latency_req(
 	int __ret = 0;							\
 									\
 	if (!idx) {							\
+		rcu_idle_enter();					\
 		cpu_do_idle();						\
+		rcu_idle_exit();					\
 		return idx;						\
 	}								\
 									\
 	if (!is_retention)						\
 		__ret =  cpu_pm_enter();				\
 	if (!__ret) {							\
+		rcu_idle_enter();					\
 		__ret = low_level_idle_enter(state);			\
+		rcu_idle_exit();					\
 		if (!is_retention)					\
 			cpu_pm_exit();					\
 	}								\



  parent reply	other threads:[~2022-06-08 14:47 UTC|newest]

Thread overview: 820+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-08 14:27 [PATCH 00/36] cpuidle,rcu: Cleanup the mess Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 01/36] x86/perf/amd: Remove tracing from perf_lopwr_cb() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 02/36] x86/idle: Replace x86_idle with a static_call Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 18:13   ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 18:13     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 03/36] cpuidle/poll: Ensure IRQ state is invariant Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06 13:51   ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-07-06 13:51     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 04/36] cpuidle,intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 15:01   ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:01     ` Rafael J. Wysocki
2022-06-08 15:48     ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 15:48       ` Peter Zijlstra
2022-06-08 16:08       ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-08 16:08         ` Rafael J. Wysocki
2022-06-09 23:49   ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-09 23:49     ` Jacob Pan
2022-06-13  8:44     ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-13  8:44       ` Peter Zijlstra
2022-06-16 21:26       ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-06-16 21:26         ` Jacob Pan
2022-07-25 19:43   ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-25 19:43     ` Michel Lespinasse
2022-07-28 17:20     ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-28 17:20       ` Paul E. McKenney
2022-07-29 10:24       ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 10:24         ` Michel Lespinasse
2022-07-29 14:59         ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-29 14:59           ` Rafael J. Wysocki
2022-07-30  9:48           ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30  9:48             ` Michel Lespinasse
2022-07-30 19:52             ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 19:52               ` Rafael J. Wysocki
2022-07-30 23:45               ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-30 23:45                 ` Michel Lespinasse
2022-07-29 15:26         ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:26           ` Paul E. McKenney
2022-07-29 15:28           ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-29 15:28             ` Paul E. McKenney
2022-07-30  9:40           ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30  9:40             ` Michel Lespinasse
2022-07-30 18:16             ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-07-30 18:16               ` Paul E. McKenney
2022-06-08 14:27 ` [PATCH 05/36] cpuidle: Move IRQ state validation Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06 13:54   ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-07-06 13:54     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 06/36] cpuidle,riscv: Push RCU-idle into driver Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 07/36] cpuidle,tegra: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 08/36] cpuidle,psci: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 09/36] cpuidle,imx6: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 10/36] cpuidle,omap3: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-13 12:33   ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-08 14:27 ` [PATCH 11/36] cpuidle,armada: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 12/36] cpuidle,omap2: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-13 12:33   ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-13 12:33     ` Tony Lindgren
2022-06-08 14:27 ` Peter Zijlstra [this message]
2022-06-08 14:27   ` [PATCH 13/36] cpuidle,dt: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 14/36] cpuidle: Fix rcu_idle_*() usage Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-14 12:41   ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 12:41     ` Mark Rutland
2022-06-14 16:40     ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:40       ` Peter Zijlstra
2022-06-14 16:59       ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-06-14 16:59         ` Mark Rutland
2022-07-26  9:55   ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-07-26  9:56     ` Gautham R. Shenoy
2022-06-08 14:27 ` [PATCH 15/36] cpuidle,cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` [PATCH 15/36] cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter, exit}() Peter Zijlstra
2022-06-08 14:27   ` [PATCH 15/36] cpuidle,cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` [PATCH 15/36] cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter, exit}() Peter Zijlstra
2022-06-14 16:13   ` [PATCH 15/36] cpuidle,cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}() Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:13     ` Mark Rutland
2022-06-14 16:42     ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:42       ` Peter Zijlstra
2022-06-14 16:53       ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-14 16:53         ` Mark Rutland
2022-06-08 14:27 ` [PATCH 16/36] rcu: Fix rcu_idle_exit() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-14 16:14   ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-14 16:14     ` Mark Rutland
2022-06-15  0:44   ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-15  0:44     ` Paul E. McKenney
2022-06-08 14:27 ` [PATCH 17/36] acpi_idle: Remove tracing Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06 13:59   ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-07-06 13:59     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 18/36] cpuidle: Annotate poll_idle() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06 13:59   ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-07-06 14:00     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 19/36] objtool/idle: Validate __cpuidle code as noinstr Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06  9:46   ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-07-06  9:46     ` Geert Uytterhoeven
2022-06-08 14:27 ` [PATCH 20/36] arch/idle: Change arch_cpu_idle() IRQ behaviour Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 16:22   ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-08 16:22     ` Arnd Bergmann
2022-06-14 16:22   ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-06-14 16:22     ` Mark Rutland
2022-07-06 14:02   ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-07-06 14:02     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 21/36] x86/tdx: Remove TDX_HCALL_ISSUE_STI Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-13  8:26   ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:26     ` Lai Jiangshan
2022-06-13  8:41     ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-13  8:41       ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 22/36] arm,smp: Remove trace_.*_rcuidle() usage Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 23/36] arm64,smp: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-14 16:24   ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-14 16:24     ` Mark Rutland
2022-06-15  6:05     ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-15  6:05       ` Marc Zyngier
2022-06-08 14:27 ` [PATCH 24/36] printk: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-09  9:16   ` Petr Mladek
2022-06-09  9:16     ` Petr Mladek
2022-06-09  9:16     ` Petr Mladek
2022-06-09  9:16     ` Petr Mladek
2022-06-09  9:16     ` Petr Mladek
2022-06-09  9:16     ` Petr Mladek via Virtualization
2022-06-09 10:02     ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 10:02       ` Peter Zijlstra
2022-06-09 11:30       ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 11:30         ` Sergey Senozhatsky
2022-06-09 13:02         ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek
2022-06-09 13:02           ` Petr Mladek via Virtualization
2022-06-09 13:02           ` Petr Mladek
2022-06-11  2:33           ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-11  2:33             ` Sergey Senozhatsky
2022-06-14 14:37           ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-14 14:37             ` Steven Rostedt
2022-06-09 13:06       ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek
2022-06-09 13:06         ` Petr Mladek via Virtualization
2022-06-09 13:06         ` Petr Mladek
2022-06-11  2:23         ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-11  2:23           ` Sergey Senozhatsky
2022-06-09 10:14   ` Petr Mladek
2022-06-09 10:14     ` Petr Mladek
2022-06-09 10:14     ` Petr Mladek
2022-06-09 10:14     ` Petr Mladek
2022-06-09 10:14     ` Petr Mladek
2022-06-09 10:14     ` Petr Mladek via Virtualization
2022-06-08 14:27 ` [PATCH 25/36] time/tick-broadcast: Remove RCU_NONIDLE usage Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-14 16:28   ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-14 16:28     ` Mark Rutland
2022-06-08 14:27 ` [PATCH 26/36] cpuidle,sched: Remove annotations from TIF_{POLLING_NRFLAG,NEED_RESCHED} Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` [PATCH 26/36] cpuidle, sched: Remove annotations from TIF_{POLLING_NRFLAG, NEED_RESCHED} Peter Zijlstra
2022-06-08 14:27   ` [PATCH 26/36] cpuidle,sched: Remove annotations from TIF_{POLLING_NRFLAG,NEED_RESCHED} Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` [PATCH 26/36] cpuidle, sched: Remove annotations from TIF_{POLLING_NRFLAG, NEED_RESCHED} Peter Zijlstra
2022-06-08 14:27 ` [PATCH 27/36] cpuidle,mwait: Make noinstr clean Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 28/36] cpuidle,tdx: Make tdx " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 29/36] cpuidle,xenpv: Make more PARAVIRT_XXL " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-13 18:48   ` Srivatsa S. Bhat
2022-06-13 18:48     ` [PATCH 29/36] cpuidle, xenpv: " Srivatsa S. Bhat
2022-06-13 18:48     ` [PATCH 29/36] cpuidle,xenpv: " Srivatsa S. Bhat
2022-06-13 18:48     ` Srivatsa S. Bhat
2022-06-13 18:48     ` [PATCH 29/36] cpuidle, xenpv: " Srivatsa S. Bhat
2022-06-13 18:48     ` [PATCH 29/36] cpuidle,xenpv: " Srivatsa S. Bhat
2022-06-13 18:48     ` Srivatsa S. Bhat
2022-06-13 18:48     ` [PATCH 29/36] cpuidle, xenpv: " Srivatsa S. Bhat
2022-06-13 19:23     ` [Pv-drivers] " Nadav Amit
2022-06-13 19:23       ` Nadav Amit via Virtualization
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit
2022-06-13 19:23       ` Nadav Amit via Virtualization
2022-06-14 16:44       ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-14 16:44         ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 30/36] cpuidle,nospec: Make " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 31/36] cpuidle,acpi: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-07-06 14:04   ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-07-06 14:04     ` Rafael J. Wysocki
2022-06-08 14:27 ` [PATCH 32/36] ftrace: WARN on rcuidle Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 33/36] cpuidle,omap3: Use WFI for omap3_pm_idle() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 16:28   ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-08 16:28     ` Arnd Bergmann
2022-06-09  7:39     ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  7:39       ` Tony Lindgren
2022-06-09  9:47       ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:47         ` Peter Zijlstra
2022-06-09  9:40     ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-09  9:40       ` Peter Zijlstra
2022-06-13 12:36   ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-13 12:36     ` Tony Lindgren
2022-06-08 14:27 ` [PATCH 34/36] cpuidle,omap3: Push RCU-idle into omap_sram_idle() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 15:04   ` Peter Zijlstra
2022-06-08 15:04     ` Peter Zijlstra
2022-06-08 15:04     ` Peter Zijlstra
2022-06-08 15:04     ` Peter Zijlstra
2022-06-08 15:04     ` Peter Zijlstra
2022-06-13 12:35     ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-13 12:35       ` Tony Lindgren
2022-06-08 15:04   ` Peter Zijlstra
2022-06-08 15:04   ` Peter Zijlstra
2022-06-13 12:39   ` [PATCH 34.5/36] cpuidle,omap4: Push RCU-idle into omap4_enter_lowpower() Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-13 12:39     ` Tony Lindgren
2022-06-14 22:12     ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-14 22:12       ` Peter Zijlstra
2022-06-15  5:35       ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2022-06-15  5:35         ` Tony Lindgren
2023-01-13 12:31     ` [tip: sched/core] cpuidle, OMAP4: " tip-bot2 for Tony Lindgren
2022-06-08 14:27 ` [PATCH 35/36] cpuidle,powerdomain: Remove trace_.*_rcuidle() Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27 ` [PATCH 36/36] cpuidle,clk: " Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 14:27   ` Peter Zijlstra
2022-06-08 20:03   ` Stephen Boyd
2022-06-08 20:03     ` Stephen Boyd
2022-06-08 20:03     ` Stephen Boyd
2022-06-08 20:03     ` Stephen Boyd
2022-06-14 11:19 ` [PATCH 00/36] cpuidle,rcu: Cleanup the mess Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 11:19   ` Mark Rutland
2022-06-14 16:58   ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 16:58     ` Peter Zijlstra
2022-06-14 17:33     ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland
2022-06-14 17:33       ` Mark Rutland

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