From: Peter Zijlstra <peterz@infradead.org>
To: peterz@infradead.org
Cc: juri.lelli@redhat.com, rafael@kernel.org,
catalin.marinas@arm.com, linus.walleij@linaro.org,
nsekhar@ti.com, bsegall@google.com, guoren@kernel.org,
pavel@ucw.cz, agordeev@linux.ibm.com, linux-arch@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, vincent.guittot@linaro.org,
mpe@ellerman.id.au, chenhuacai@kernel.org,
christophe.leroy@csgroup.eu, linux-acpi@vger.kernel.org,
agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com,
vgupta@kernel.org, mattst88@gmail.com, mturquette@baylibre.com,
sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-um@lists.infradead.org, npiggin@gmail.com,
tglx@linutronix.de, linux-omap@vger.kernel.org,
dietmar.eggemann@arm.com, andreyknvl@gmail.com,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
linux-perf-users@vger.kernel.org, senozhatsky@chromium.org,
svens@linux.ibm.com
Subject: [PATCH v3 48/51] cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle
Date: Thu, 12 Jan 2023 20:44:02 +0100 [thread overview]
Message-ID: <20230112195542.274096325@infradead.org> (raw)
In-Reply-To: 20230112194314.845371875@infradead.org
For all cpuidle drivers that use CPUIDLE_FLAG_RCU_IDLE, ensure that
all functions that call ct_cpuidle_enter() are marked __cpuidle.
( due to lack of noinstr validation on these platforms it is entirely
possible this isn't complete )
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
arch/arm/mach-imx/cpuidle-imx6q.c | 4 ++--
arch/arm/mach-imx/cpuidle-imx6sx.c | 4 ++--
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 4 ++--
arch/arm/mach-omap2/pm34xx.c | 2 +-
arch/arm64/kernel/cpuidle.c | 2 +-
drivers/cpuidle/cpuidle-arm.c | 4 ++--
drivers/cpuidle/cpuidle-big_little.c | 4 ++--
drivers/cpuidle/cpuidle-mvebu-v7.c | 6 +++---
drivers/cpuidle/cpuidle-psci.c | 17 ++++++-----------
drivers/cpuidle/cpuidle-qcom-spm.c | 4 ++--
drivers/cpuidle/cpuidle-riscv-sbi.c | 10 +++++-----
drivers/cpuidle/cpuidle-tegra.c | 10 +++++-----
12 files changed, 33 insertions(+), 38 deletions(-)
--- a/arch/arm/mach-imx/cpuidle-imx6q.c
+++ b/arch/arm/mach-imx/cpuidle-imx6q.c
@@ -17,8 +17,8 @@
static int num_idle_cpus = 0;
static DEFINE_RAW_SPINLOCK(cpuidle_lock);
-static int imx6q_enter_wait(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index)
+static __cpuidle int imx6q_enter_wait(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
{
raw_spin_lock(&cpuidle_lock);
if (++num_idle_cpus == num_online_cpus())
--- a/arch/arm/mach-imx/cpuidle-imx6sx.c
+++ b/arch/arm/mach-imx/cpuidle-imx6sx.c
@@ -30,8 +30,8 @@ static int imx6sx_idle_finish(unsigned l
return 0;
}
-static int imx6sx_enter_wait(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index)
+static __cpuidle int imx6sx_enter_wait(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
{
imx6_set_lpm(WAIT_UNCLOCKED);
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -224,8 +224,8 @@ static void __init save_l2x0_context(voi
* 2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR
* 3 - CPUx L1 and logic lost + GIC + L2 lost: DEVICE OFF
*/
-int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state,
- bool rcuidle)
+__cpuidle int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state,
+ bool rcuidle)
{
struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu);
unsigned int save_state = 0, cpu_logic_state = PWRDM_POWER_RET;
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -175,7 +175,7 @@ static int omap34xx_do_sram_idle(unsigne
return 0;
}
-void omap_sram_idle(bool rcuidle)
+__cpuidle void omap_sram_idle(bool rcuidle)
{
/* Variable to tell what needs to be saved and restored
* in omap_sram_idle*/
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -62,7 +62,7 @@ int acpi_processor_ffh_lpi_probe(unsigne
return psci_acpi_cpu_init_idle(cpu);
}
-int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi)
+__cpuidle int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi)
{
u32 state = lpi->address;
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -31,8 +31,8 @@
* Called from the CPUidle framework to program the device to the
* specified target state selected by the governor.
*/
-static int arm_enter_idle_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
+static __cpuidle int arm_enter_idle_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx)
{
/*
* Pass idle state index to arm_cpuidle_suspend which in turn
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -122,8 +122,8 @@ static int notrace bl_powerdown_finisher
* Called from the CPUidle framework to program the device to the
* specified target state selected by the governor.
*/
-static int bl_enter_powerdown(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
+static __cpuidle int bl_enter_powerdown(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx)
{
cpu_pm_enter();
ct_cpuidle_enter();
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -25,9 +25,9 @@
static int (*mvebu_v7_cpu_suspend)(int);
-static int mvebu_v7_enter_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
+static __cpuidle int mvebu_v7_enter_idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
{
int ret;
bool deepidle = false;
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -49,14 +49,9 @@ static inline u32 psci_get_domain_state(
return __this_cpu_read(domain_state);
}
-static inline int psci_enter_state(int idx, u32 state)
-{
- return CPU_PM_CPU_IDLE_ENTER_PARAM(psci_cpu_suspend_enter, idx, state);
-}
-
-static int __psci_enter_domain_idle_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx,
- bool s2idle)
+static __cpuidle int __psci_enter_domain_idle_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx,
+ bool s2idle)
{
struct psci_cpuidle_data *data = this_cpu_ptr(&psci_cpuidle_data);
u32 *states = data->psci_states;
@@ -192,12 +187,12 @@ static void psci_idle_init_cpuhp(void)
pr_warn("Failed %d while setup cpuhp state\n", err);
}
-static int psci_enter_idle_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
+static __cpuidle int psci_enter_idle_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx)
{
u32 *state = __this_cpu_read(psci_cpuidle_data.psci_states);
- return psci_enter_state(idx, state[idx]);
+ return CPU_PM_CPU_IDLE_ENTER_PARAM(psci_cpu_suspend_enter, idx, state[idx]);
}
static const struct of_device_id psci_idle_state_match[] = {
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -58,8 +58,8 @@ static int qcom_cpu_spc(struct spm_drive
return ret;
}
-static int spm_enter_idle_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
+static __cpuidle int spm_enter_idle_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx)
{
struct cpuidle_qcom_spm_data *data = container_of(drv, struct cpuidle_qcom_spm_data,
cpuidle_driver);
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -93,8 +93,8 @@ static int sbi_suspend(u32 state)
return sbi_suspend_finisher(state, 0, 0);
}
-static int sbi_cpuidle_enter_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
+static __cpuidle int sbi_cpuidle_enter_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx)
{
u32 *states = __this_cpu_read(sbi_cpuidle_data.states);
u32 state = states[idx];
@@ -106,9 +106,9 @@ static int sbi_cpuidle_enter_state(struc
idx, state);
}
-static int __sbi_enter_domain_idle_state(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx,
- bool s2idle)
+static __cpuidle int __sbi_enter_domain_idle_state(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int idx,
+ bool s2idle)
{
struct sbi_cpuidle_data *data = this_cpu_ptr(&sbi_cpuidle_data);
u32 *states = data->states;
--- a/drivers/cpuidle/cpuidle-tegra.c
+++ b/drivers/cpuidle/cpuidle-tegra.c
@@ -160,8 +160,8 @@ static int tegra_cpuidle_coupled_barrier
return 0;
}
-static int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
- int index, unsigned int cpu)
+static __cpuidle int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
+ int index, unsigned int cpu)
{
int err;
@@ -226,9 +226,9 @@ static int tegra_cpuidle_adjust_state_in
return index;
}
-static int tegra_cpuidle_enter(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
+static __cpuidle int tegra_cpuidle_enter(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
{
bool do_rcu = drv->states[index].flags & CPUIDLE_FLAG_RCU_IDLE;
unsigned int cpu = cpu_logical_map(dev->cpu);
next prev parent reply other threads:[~2023-01-12 19:44 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 19:43 [PATCH v3 00/51] cpuidle,rcu: Clean up the mess Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 01/51] x86/perf/amd: Remove tracing from perf_lopwr_cb() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 02/51] x86/idle: Replace x86_idle with a static_call Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 03/51] cpuidle/poll: Ensure IRQ state is invariant Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 04/51] cpuidle: Move IRQ state validation Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 05/51] cpuidle,riscv: Push RCU-idle into driver Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 06/51] cpuidle,tegra: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 07/51] cpuidle,psci: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 08/51] cpuidle,imx6: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 09/51] cpuidle,omap3: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 10/51] cpuidle,armada: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 11/51] cpuidle,omap4: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 12/51] cpuidle,dt: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 13/51] cpuidle: Fix ct_idle_*() usage Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 14/51] cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter, exit}() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 15/51] acpi_idle: Remove tracing Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 16/51] cpuidle: Annotate poll_idle() Peter Zijlstra
2023-01-20 9:56 ` Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 17/51] objtool/idle: Validate __cpuidle code as noinstr Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 18/51] cpuidle, intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE *again* Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 19/51] cpuidle,intel_idle: Fix CPUIDLE_FLAG_INIT_XSTATE Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 20/51] cpuidle,intel_idle: Fix CPUIDLE_FLAG_IBRS Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 21/51] arch/idle: Change arch_cpu_idle() IRQ behaviour Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 22/51] x86/tdx: Remove TDX_HCALL_ISSUE_STI Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 23/51] arm,smp: Remove trace_.*_rcuidle() usage Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 24/51] arm64,smp: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 25/51] printk: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 26/51] time/tick-broadcast: Remove RCU_NONIDLE usage Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 27/51] cpuidle, sched: Remove annotations from TIF_{POLLING_NRFLAG, NEED_RESCHED} Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 28/51] cpuidle,mwait: Make noinstr clean Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 29/51] cpuidle,tdx: Make tdx " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 30/51] cpuidle,xenpv: Make more PARAVIRT_XXL " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 31/51] cpuidle,nospec: Make " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 32/51] cpuidle,acpi: " Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 33/51] trace: Remove trace_hardirqs_{on,off}_caller() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 34/51] trace: WARN on rcuidle Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 35/51] trace,hardirq: No moar _rcuidle() tracing Peter Zijlstra
2023-01-17 4:24 ` Masami Hiramatsu
2023-01-17 8:53 ` Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 36/51] cpuidle,omap3: Use WFI for omap3_pm_idle() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 37/51] cpuidle,omap3: Push RCU-idle into omap_sram_idle() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 38/51] cpuidle,omap4: Push RCU-idle into omap4_enter_lowpower() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 39/51] arm,omap2: Use WFI for omap2_pm_idle() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 40/51] cpuidle,powerdomain: Remove trace_.*_rcuidle() Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 41/51] cpuidle,clk: " Peter Zijlstra
2023-01-12 20:28 ` Stephen Boyd
2023-01-12 19:43 ` [PATCH v3 42/51] ubsan: Fix objtool UACCESS warns Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 43/51] intel_idle: Add force_irq_on module param Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 44/51] entry, kasan, x86: Disallow overriding mem*() functions Peter Zijlstra
2023-01-12 19:43 ` [PATCH v3 45/51] sched: Always inline __this_cpu_preempt_check() Peter Zijlstra
2023-01-12 19:44 ` [PATCH v3 46/51] arm64,riscv,perf: Remove RCU_NONIDLE() usage Peter Zijlstra
2023-01-12 19:44 ` [PATCH v3 47/51] cpuidle: Ensure ct_cpuidle_enter() is always called from noinstr/__cpuidle Peter Zijlstra
2023-01-12 19:44 ` Peter Zijlstra [this message]
2023-01-12 19:44 ` [PATCH v3 49/51] cpuidle, arch: Mark all regular cpuidle_state::enter methods __cpuidle Peter Zijlstra
2023-01-12 19:44 ` [PATCH v3 50/51] cpuidle: Comments about noinstr/__cpuidle Peter Zijlstra
2023-01-12 19:44 ` [PATCH v3 51/51] context_tracking: Fix noinstr vs KASAN Peter Zijlstra
2023-01-13 18:06 ` [PATCH v3 00/51] cpuidle,rcu: Clean up the mess Paul E. McKenney
2023-01-16 16:59 ` Mark Rutland
2023-01-17 10:26 ` Peter Zijlstra
2023-01-17 12:39 ` Sudeep Holla
2023-01-17 13:16 ` Mark Rutland
2023-01-17 14:21 ` Sudeep Holla
2023-01-17 15:35 ` Mark Rutland
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