mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
f6419f240b
The suspend() hook in the cpuidle_ops struct is always called on the cpu entering idle, which means that the cpu parameter passed to the suspend hook always corresponds to the local cpu, making it somewhat redundant. This patch removes the logical cpu parameter from the ARM cpuidle_ops.suspend hook and updates all the existing kernel implementations to reflect this change. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Lina Iyer <lina.iyer@linaro.org> Tested-by: Lina Iyer <lina.iyer@linaro.org> Tested-by: Jisheng Zhang <jszhang@marvell.com> [psci] Cc: Lina Iyer <lina.iyer@linaro.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
#ifndef __ASM_ARM_CPUIDLE_H
|
|
#define __ASM_ARM_CPUIDLE_H
|
|
|
|
#include <asm/proc-fns.h>
|
|
|
|
#ifdef CONFIG_CPU_IDLE
|
|
extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
|
|
struct cpuidle_driver *drv, int index);
|
|
#else
|
|
static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
|
|
struct cpuidle_driver *drv, int index) { return -ENODEV; }
|
|
#endif
|
|
|
|
/* Common ARM WFI state */
|
|
#define ARM_CPUIDLE_WFI_STATE_PWR(p) {\
|
|
.enter = arm_cpuidle_simple_enter,\
|
|
.exit_latency = 1,\
|
|
.target_residency = 1,\
|
|
.power_usage = p,\
|
|
.name = "WFI",\
|
|
.desc = "ARM WFI",\
|
|
}
|
|
|
|
/*
|
|
* in case power_specified == 1, give a default WFI power value needed
|
|
* by some governors
|
|
*/
|
|
#define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX)
|
|
|
|
struct device_node;
|
|
|
|
struct cpuidle_ops {
|
|
int (*suspend)(unsigned long arg);
|
|
int (*init)(struct device_node *, int cpu);
|
|
};
|
|
|
|
struct of_cpuidle_method {
|
|
const char *method;
|
|
struct cpuidle_ops *ops;
|
|
};
|
|
|
|
#define CPUIDLE_METHOD_OF_DECLARE(name, _method, _ops) \
|
|
static const struct of_cpuidle_method __cpuidle_method_of_table_##name \
|
|
__used __section(__cpuidle_method_of_table) \
|
|
= { .method = _method, .ops = _ops }
|
|
|
|
extern int arm_cpuidle_suspend(int index);
|
|
|
|
extern int arm_cpuidle_init(int cpu);
|
|
|
|
#endif
|