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[PATCH] powerpc: merge atomic.h, memory.h

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powerpc: Merge atomic.h and memory.h into powerpc

Merged atomic.h into include/powerpc.  Moved asm-style HMT_ defines from
memory.h into ppc_asm.h, where there were already HMT_defines; moved c-style
HMT_ defines to processor.h. Renamed memory.h to synch.h to better reflect
its contents.

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Jon Loeliger <linuxppc@jdl.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Becky Bruce
2005-09-22 14:20:04 -05:00
committed by Paul Mackerras
parent 2bfadee32f
commit feaf7cf153
11 changed files with 88 additions and 298 deletions
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51
include/asm-powerpc/synch.h Normal file
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#ifndef _ASM_POWERPC_SYNCH_H
#define _ASM_POWERPC_SYNCH_H
#include <linux/config.h>
#ifdef __powerpc64__
#define __SUBARCH_HAS_LWSYNC
#endif
#ifdef __SUBARCH_HAS_LWSYNC
# define LWSYNC lwsync
#else
# define LWSYNC sync
#endif
/*
* Arguably the bitops and *xchg operations don't imply any memory barrier
* or SMP ordering, but in fact a lot of drivers expect them to imply
* both, since they do on x86 cpus.
*/
#ifdef CONFIG_SMP
#define EIEIO_ON_SMP "eieio\n"
#define ISYNC_ON_SMP "\n\tisync"
#define SYNC_ON_SMP __stringify(LWSYNC) "\n"
#else
#define EIEIO_ON_SMP
#define ISYNC_ON_SMP
#define SYNC_ON_SMP
#endif
static inline void eieio(void)
{
__asm__ __volatile__ ("eieio" : : : "memory");
}
static inline void isync(void)
{
__asm__ __volatile__ ("isync" : : : "memory");
}
#ifdef CONFIG_SMP
#define eieio_on_smp() eieio()
#define isync_on_smp() isync()
#else
#define eieio_on_smp() __asm__ __volatile__("": : :"memory")
#define isync_on_smp() __asm__ __volatile__("": : :"memory")
#endif
#endif /* _ASM_POWERPC_SYNCH_H */