summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/synch.h
diff options
context:
space:
mode:
authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 15:20:30 +1000
committerPaul Mackerras <paulus@samba.org>2008-08-04 12:02:00 +1000
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /arch/powerpc/include/asm/synch.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/synch.h')
-rw-r--r--arch/powerpc/include/asm/synch.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h
new file mode 100644
index 00000000000..45963e80f55
--- /dev/null
+++ b/arch/powerpc/include/asm/synch.h
@@ -0,0 +1,44 @@
+#ifndef _ASM_POWERPC_SYNCH_H
+#define _ASM_POWERPC_SYNCH_H
+#ifdef __KERNEL__
+
+#include <linux/stringify.h>
+#include <asm/feature-fixups.h>
+
+#ifndef __ASSEMBLY__
+extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup;
+extern void do_lwsync_fixups(unsigned long value, void *fixup_start,
+ void *fixup_end);
+
+static inline void eieio(void)
+{
+ __asm__ __volatile__ ("eieio" : : : "memory");
+}
+
+static inline void isync(void)
+{
+ __asm__ __volatile__ ("isync" : : : "memory");
+}
+#endif /* __ASSEMBLY__ */
+
+#if defined(__powerpc64__)
+# define LWSYNC lwsync
+#elif defined(CONFIG_E500)
+# define LWSYNC \
+ START_LWSYNC_SECTION(96); \
+ sync; \
+ MAKE_LWSYNC_SECTION_ENTRY(96, __lwsync_fixup);
+#else
+# define LWSYNC sync
+#endif
+
+#ifdef CONFIG_SMP
+#define ISYNC_ON_SMP "\n\tisync\n"
+#define LWSYNC_ON_SMP stringify_in_c(LWSYNC) "\n"
+#else
+#define ISYNC_ON_SMP
+#define LWSYNC_ON_SMP
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_SYNCH_H */