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cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle

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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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230112195542.274096325@infradead.org
This commit is contained in:
Peter Zijlstra 2023-01-12 20:44:02 +01:00 committed by Ingo Molnar
parent 17cc2b5525
commit 69e26b4f43
12 changed files with 33 additions and 38 deletions
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2
arch/arm/mach-imx/cpuidle-imx6q.c
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@ -17,7 +17,7 @@
static int num_idle_cpus = 0; static int num_idle_cpus = 0;
static DEFINE_RAW_SPINLOCK(cpuidle_lock); static DEFINE_RAW_SPINLOCK(cpuidle_lock);
static int imx6q_enter_wait(struct cpuidle_device *dev, static __cpuidle int imx6q_enter_wait(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index) struct cpuidle_driver *drv, int index)
{ {
raw_spin_lock(&cpuidle_lock); raw_spin_lock(&cpuidle_lock);

2
arch/arm/mach-imx/cpuidle-imx6sx.c
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@ -30,7 +30,7 @@ static int imx6sx_idle_finish(unsigned long val)
return 0; return 0;
} }
static int imx6sx_enter_wait(struct cpuidle_device *dev, static __cpuidle int imx6sx_enter_wait(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index) struct cpuidle_driver *drv, int index)
{ {
imx6_set_lpm(WAIT_UNCLOCKED); imx6_set_lpm(WAIT_UNCLOCKED);

2
arch/arm/mach-omap2/omap-mpuss-lowpower.c
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@ -224,7 +224,7 @@ static void __init save_l2x0_context(void)
* 2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR * 2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR
* 3 - CPUx L1 and logic lost + GIC + L2 lost: DEVICE OFF * 3 - CPUx L1 and logic lost + GIC + L2 lost: DEVICE OFF
*/ */
int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state, __cpuidle int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state,
bool rcuidle) bool rcuidle)
{ {
struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu); struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu);

2
arch/arm/mach-omap2/pm34xx.c
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@ -175,7 +175,7 @@ static int omap34xx_do_sram_idle(unsigned long save_state)
return 0; 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 /* Variable to tell what needs to be saved and restored
* in omap_sram_idle*/ * in omap_sram_idle*/

2
arch/arm64/kernel/cpuidle.c
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@ -62,7 +62,7 @@ int acpi_processor_ffh_lpi_probe(unsigned int cpu)
return psci_acpi_cpu_init_idle(cpu); 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; u32 state = lpi->address;

2
drivers/cpuidle/cpuidle-arm.c
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@ -31,7 +31,7 @@
* Called from the CPUidle framework to program the device to the * Called from the CPUidle framework to program the device to the
* specified target state selected by the governor. * specified target state selected by the governor.
*/ */
static int arm_enter_idle_state(struct cpuidle_device *dev, static __cpuidle int arm_enter_idle_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx) struct cpuidle_driver *drv, int idx)
{ {
/* /*

2
drivers/cpuidle/cpuidle-big_little.c
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@ -122,7 +122,7 @@ static int notrace bl_powerdown_finisher(unsigned long arg)
* Called from the CPUidle framework to program the device to the * Called from the CPUidle framework to program the device to the
* specified target state selected by the governor. * specified target state selected by the governor.
*/ */
static int bl_enter_powerdown(struct cpuidle_device *dev, static __cpuidle int bl_enter_powerdown(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx) struct cpuidle_driver *drv, int idx)
{ {
cpu_pm_enter(); cpu_pm_enter();

2
drivers/cpuidle/cpuidle-mvebu-v7.c
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@ -25,7 +25,7 @@
static int (*mvebu_v7_cpu_suspend)(int); static int (*mvebu_v7_cpu_suspend)(int);
static int mvebu_v7_enter_idle(struct cpuidle_device *dev, static __cpuidle int mvebu_v7_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {

11
drivers/cpuidle/cpuidle-psci.c
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@ -49,12 +49,7 @@ static inline u32 psci_get_domain_state(void)
return __this_cpu_read(domain_state); return __this_cpu_read(domain_state);
} }
static inline int psci_enter_state(int idx, u32 state) static __cpuidle int __psci_enter_domain_idle_state(struct cpuidle_device *dev,
{
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, struct cpuidle_driver *drv, int idx,
bool s2idle) bool s2idle)
{ {
@ -192,12 +187,12 @@ static void psci_idle_init_cpuhp(void)
pr_warn("Failed %d while setup cpuhp state\n", err); pr_warn("Failed %d while setup cpuhp state\n", err);
} }
static int psci_enter_idle_state(struct cpuidle_device *dev, static __cpuidle int psci_enter_idle_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx) struct cpuidle_driver *drv, int idx)
{ {
u32 *state = __this_cpu_read(psci_cpuidle_data.psci_states); 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[] = { static const struct of_device_id psci_idle_state_match[] = {

2
drivers/cpuidle/cpuidle-qcom-spm.c
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@ -58,7 +58,7 @@ static int qcom_cpu_spc(struct spm_driver_data *drv)
return ret; return ret;
} }
static int spm_enter_idle_state(struct cpuidle_device *dev, static __cpuidle int spm_enter_idle_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx) struct cpuidle_driver *drv, int idx)
{ {
struct cpuidle_qcom_spm_data *data = container_of(drv, struct cpuidle_qcom_spm_data, struct cpuidle_qcom_spm_data *data = container_of(drv, struct cpuidle_qcom_spm_data,

4
drivers/cpuidle/cpuidle-riscv-sbi.c
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@ -93,7 +93,7 @@ static int sbi_suspend(u32 state)
return sbi_suspend_finisher(state, 0, 0); return sbi_suspend_finisher(state, 0, 0);
} }
static int sbi_cpuidle_enter_state(struct cpuidle_device *dev, static __cpuidle int sbi_cpuidle_enter_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx) struct cpuidle_driver *drv, int idx)
{ {
u32 *states = __this_cpu_read(sbi_cpuidle_data.states); u32 *states = __this_cpu_read(sbi_cpuidle_data.states);
@ -106,7 +106,7 @@ static int sbi_cpuidle_enter_state(struct cpuidle_device *dev,
idx, state); idx, state);
} }
static int __sbi_enter_domain_idle_state(struct cpuidle_device *dev, static __cpuidle int __sbi_enter_domain_idle_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx, struct cpuidle_driver *drv, int idx,
bool s2idle) bool s2idle)
{ {

4
drivers/cpuidle/cpuidle-tegra.c
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@ -160,7 +160,7 @@ static int tegra_cpuidle_coupled_barrier(struct cpuidle_device *dev)
return 0; return 0;
} }
static int tegra_cpuidle_state_enter(struct cpuidle_device *dev, static __cpuidle int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
int index, unsigned int cpu) int index, unsigned int cpu)
{ {
int err; int err;
@ -226,7 +226,7 @@ static int tegra_cpuidle_adjust_state_index(int index, unsigned int cpu)
return index; return index;
} }
static int tegra_cpuidle_enter(struct cpuidle_device *dev, static __cpuidle int tegra_cpuidle_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {