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authorUlrich Drepper <drepper@redhat.com>2004-09-08 06:09:02 +0000
committerUlrich Drepper <drepper@redhat.com>2004-09-08 06:09:02 +0000
commit7ba0e52c39ae2a57933a856ce363ab0361ad1ed9 (patch)
treeaaabd4f3d63a9a27d7c8f4fb1105bcc3c5ef26a2 /sysdeps/powerpc/powerpc64
parentf510d815bec80c004b194aaf4847fa40069cfd18 (diff)
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Update.
	* sysdeps/powerpc/bits/atomic.h (atomic_increment): Define.
	(atomic_decrement): Define.

	* sysdeps/powerpc/bits/atomic.h: Implement atomic_increment_val and
	atomic_decrement_val.
	* sysdeps/powerpc/powerpc32/bits/atomic.h: Likewise.
	* sysdeps/powerpc/powerpc64/bits/atomic.h: Likewise.

	* csu/tst-atomic.c (do_test): Add tests of atomic_increment_val
	and atomic_decrement_val.
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
-rw-r--r--sysdeps/powerpc/powerpc64/bits/atomic.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/bits/atomic.h b/sysdeps/powerpc/powerpc64/bits/atomic.h
index fa25678410..e46dc1e4d7 100644
--- a/sysdeps/powerpc/powerpc64/bits/atomic.h
+++ b/sysdeps/powerpc/powerpc64/bits/atomic.h
@@ -168,6 +168,32 @@
       __val;								      \
     })
 
+# define __arch_atomic_increment_val_64(mem) \
+    ({									      \
+      __typeof (*(mem)) __val;						      \
+      __asm __volatile ("1:	ldarx	%0,0,%2\n"			      \
+			"	addi	%0,%0,1\n"			      \
+			"	stdcx.	%0,0,%2\n"			      \
+			"	bne-	1b"				      \
+			: "=&b" (__val), "=m" (*mem)			      \
+			: "b" (mem), "m" (*mem)				      \
+			: "cr0", "memory");				      \
+      __val;								      \
+    })
+
+# define __arch_atomic_decrement_val_64(mem) \
+    ({									      \
+      __typeof (*(mem)) __val;						      \
+      __asm __volatile ("1:	ldarx	%0,0,%2\n"			      \
+			"	subi	%0,%0,1\n"			      \
+			"	stdcx.	%0,0,%2\n"			      \
+			"	bne-	1b"				      \
+			: "=&b" (__val), "=m" (*mem)			      \
+			: "b" (mem), "m" (*mem)				      \
+			: "cr0", "memory");				      \
+      __val;								      \
+    })
+
 # define __arch_atomic_decrement_if_positive_64(mem) \
   ({ int __val, __tmp;							      \
      __asm __volatile ("1:	ldarx	%0,0,%3\n"			      \