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authorIngo Molnar <mingo@elte.hu>2008-08-14 14:19:59 +0400
committerIngo Molnar <mingo@elte.hu>2008-08-14 14:19:59 +0400
commit8d7ccaa545490cdffdfaff0842436a8dd85cf47b (patch)
tree8129b5907161bc6ae26deb3645ce1e280c5e1f51 /arch/powerpc/include/asm/asm-compat.h
parentb2139aa0eec330c711c5a279db361e5ef1178e78 (diff)
parent30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff)
downloadlinux-8d7ccaa545490cdffdfaff0842436a8dd85cf47b.tar.xz
Merge commit 'v2.6.27-rc3' into x86/prototypes
Conflicts: include/asm-x86/dma-mapping.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/include/asm/asm-compat.h')
-rw-r--r--arch/powerpc/include/asm/asm-compat.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h
new file mode 100644
index 000000000000..8f0fe7971949
--- /dev/null
+++ b/arch/powerpc/include/asm/asm-compat.h
@@ -0,0 +1,69 @@
+#ifndef _ASM_POWERPC_ASM_COMPAT_H
+#define _ASM_POWERPC_ASM_COMPAT_H
+
+#include <asm/types.h>
+
+#ifdef __ASSEMBLY__
+# define stringify_in_c(...) __VA_ARGS__
+# define ASM_CONST(x) x
+#else
+/* This version of stringify will deal with commas... */
+# define __stringify_in_c(...) #__VA_ARGS__
+# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " "
+# define __ASM_CONST(x) x##UL
+# define ASM_CONST(x) __ASM_CONST(x)
+#endif
+
+
+#ifdef __powerpc64__
+
+/* operations for longs and pointers */
+#define PPC_LL stringify_in_c(ld)
+#define PPC_STL stringify_in_c(std)
+#define PPC_LCMPI stringify_in_c(cmpdi)
+#define PPC_LONG stringify_in_c(.llong)
+#define PPC_LONG_ALIGN stringify_in_c(.balign 8)
+#define PPC_TLNEI stringify_in_c(tdnei)
+#define PPC_LLARX stringify_in_c(ldarx)
+#define PPC_STLCX stringify_in_c(stdcx.)
+#define PPC_CNTLZL stringify_in_c(cntlzd)
+
+/* Move to CR, single-entry optimized version. Only available
+ * on POWER4 and later.
+ */
+#ifdef CONFIG_POWER4_ONLY
+#define PPC_MTOCRF stringify_in_c(mtocrf)
+#else
+#define PPC_MTOCRF stringify_in_c(mtcrf)
+#endif
+
+#else /* 32-bit */
+
+/* operations for longs and pointers */
+#define PPC_LL stringify_in_c(lwz)
+#define PPC_STL stringify_in_c(stw)
+#define PPC_LCMPI stringify_in_c(cmpwi)
+#define PPC_LONG stringify_in_c(.long)
+#define PPC_LONG_ALIGN stringify_in_c(.balign 4)
+#define PPC_TLNEI stringify_in_c(twnei)
+#define PPC_LLARX stringify_in_c(lwarx)
+#define PPC_STLCX stringify_in_c(stwcx.)
+#define PPC_CNTLZL stringify_in_c(cntlzw)
+#define PPC_MTOCRF stringify_in_c(mtcrf)
+
+#endif
+
+#ifdef __KERNEL__
+#ifdef CONFIG_IBM405_ERR77
+/* Erratum #77 on the 405 means we need a sync or dcbt before every
+ * stwcx. The old ATOMIC_SYNC_FIX covered some but not all of this.
+ */
+#define PPC405_ERR77(ra,rb) stringify_in_c(dcbt ra, rb;)
+#define PPC405_ERR77_SYNC stringify_in_c(sync;)
+#else
+#define PPC405_ERR77(ra,rb)
+#define PPC405_ERR77_SYNC
+#endif
+#endif
+
+#endif /* _ASM_POWERPC_ASM_COMPAT_H */