8a467a529f
This rips out some of the old spinlock and rwlock behaviour that the SH-2 parts were using and reworks them for LL/SC semantics on the SH-4A. This is primarily only useful for SH-X3 multi-cores, but can also be used for building CONFIG_SMP=y testing kernels on SH-4A UP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
22 lines
420 B
C
22 lines
420 B
C
#ifndef __ASM_SH_SPINLOCK_TYPES_H
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#define __ASM_SH_SPINLOCK_TYPES_H
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#ifndef __LINUX_SPINLOCK_TYPES_H
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# error "please don't include this file directly"
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#endif
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typedef struct {
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volatile unsigned int lock;
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} raw_spinlock_t;
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#define __RAW_SPIN_LOCK_UNLOCKED { 1 }
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typedef struct {
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volatile unsigned int lock;
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} raw_rwlock_t;
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#define RW_LOCK_BIAS 0x01000000
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#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
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#endif
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