da9f970fdd
Defines a macro intended to allow trivial use of the regular MIPS wait instruction from cpuidle drivers, which may simply invoke the macro within their array of states. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
37 lines
883 B
C
37 lines
883 B
C
#ifndef __ASM_IDLE_H
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#define __ASM_IDLE_H
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#include <linux/cpuidle.h>
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#include <linux/linkage.h>
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extern void (*cpu_wait)(void);
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extern void r4k_wait(void);
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extern asmlinkage void __r4k_wait(void);
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extern void r4k_wait_irqoff(void);
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extern void __pastwait(void);
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static inline int using_rollback_handler(void)
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{
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return cpu_wait == r4k_wait;
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}
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static inline int address_is_in_r4k_wait_irqoff(unsigned long addr)
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{
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return addr >= (unsigned long)r4k_wait_irqoff &&
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addr < (unsigned long)__pastwait;
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}
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extern int mips_cpuidle_wait_enter(struct cpuidle_device *dev,
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struct cpuidle_driver *drv, int index);
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#define MIPS_CPUIDLE_WAIT_STATE {\
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.enter = mips_cpuidle_wait_enter,\
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.exit_latency = 1,\
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.target_residency = 1,\
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.power_usage = UINT_MAX,\
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.flags = CPUIDLE_FLAG_TIME_VALID,\
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.name = "wait",\
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.desc = "MIPS wait",\
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}
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#endif /* __ASM_IDLE_H */
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