spinlock.h File Reference

#include <asm/processor.h>

Go to the source code of this file.

Macros
#define	ALT_SMP(smp, up)
#define	SEV   ALT_SMP("sev", "nop")
#define	WFE(cond)   ALT_SMP("wfe" cond, "nop")
#define	arch_spin_unlock_wait(lock)   do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
#define	arch_spin_lock_flags(lock, flags)   arch_spin_lock(lock)
#define	arch_spin_is_contended   arch_spin_is_contended
#define	arch_write_can_lock(x)   ((x)->lock == 0)
#define	arch_read_can_lock(x)   ((x)->lock < 0x80000000)
#define	arch_read_lock_flags(lock, flags)   arch_read_lock(lock)
#define	arch_write_lock_flags(lock, flags)   arch_write_lock(lock)
#define	arch_spin_relax(lock)   cpu_relax()
#define	arch_read_relax(lock)   cpu_relax()
#define	arch_write_relax(lock)   cpu_relax()

Macro Definition Documentation

#define ALT_SMP	(		smp,
			up
	)

Value:

"9998:  " smp "\n"                  \
    "   .pushsection \".alt.smp.init\", \"a\"\n"    \
    "   .long   9998b\n"                \
    "   " up "\n"                   \
    "   .popsection\n"

Definition at line 14 of file spinlock.h.

#define arch_read_can_lock

(

x

)

((x)->lock < 0x80000000)

Definition at line 283 of file spinlock.h.

#define arch_read_lock_flags	(		lock,
			flags
	)		arch_read_lock(lock)

Definition at line 285 of file spinlock.h.

#define arch_read_relax

(

lock

)

cpu_relax()

Definition at line 289 of file spinlock.h.

#define arch_spin_is_contended   arch_spin_is_contended

Definition at line 152 of file spinlock.h.

#define arch_spin_lock_flags	(		lock,
			flags
	)		arch_spin_lock(lock)

Definition at line 72 of file spinlock.h.

#define arch_spin_relax

(

lock

)

cpu_relax()

Definition at line 288 of file spinlock.h.

#define arch_spin_unlock_wait

(

lock

)

do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)

Definition at line 69 of file spinlock.h.

#define arch_write_can_lock

(

x

)

((x)->lock == 0)

Definition at line 214 of file spinlock.h.

#define arch_write_lock_flags	(		lock,
			flags
	)		arch_write_lock(lock)

Definition at line 286 of file spinlock.h.

#define arch_write_relax

(

lock

)

cpu_relax()

Definition at line 290 of file spinlock.h.

#define SEV   ALT_SMP("sev", "nop")

Definition at line 41 of file spinlock.h.

#define WFE

(

cond

)

ALT_SMP("wfe" cond, "nop")

Definition at line 42 of file spinlock.h.