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-rw-r--r--sysdeps/powerpc/bits/atomic.h116
-rw-r--r--sysdeps/powerpc/powerpc32/atomicity.h98
-rw-r--r--sysdeps/powerpc/powerpc64/atomicity.h132
3 files changed, 116 insertions, 230 deletions
diff --git a/sysdeps/powerpc/bits/atomic.h b/sysdeps/powerpc/bits/atomic.h
new file mode 100644
index 0000000000..af6156389f
--- /dev/null
+++ b/sysdeps/powerpc/bits/atomic.h
@@ -0,0 +1,116 @@
+/* Atomic operations.  PowerPC version.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdint.h>
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+
+#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#ifdef UP
+#define __ARCH_ACQ_INSTR	""
+#define __ARCH_REL_INSTR	""
+#else
+#define __ARCH_ACQ_INSTR	"isync"
+#define __ARCH_REL_INSTR	"sync"
+#endif
+
+/*
+ * XXX At present these have both acquire and release semantics.
+ * Ultimately we should do separate _acq and _rel versions.
+ */
+
+/*
+ * XXX this may not work properly on 64-bit if the register
+ * containing oldval has the high half non-zero for some reason.
+ */
+#define __arch_compare_and_exchange_32_acq(mem, newval, oldval)	\
+({								\
+  unsigned int __tmp;						\
+  __asm __volatile (__ARCH_REL_INSTR "\n"			\
+		    "1:	lwarx	%0,0,%1\n"			\
+		    "	subf.	%0,%2,%0\n"			\
+		    "	bne	2f\n"				\
+		    "	stwcx.	%3,0,%1\n"			\
+		    "	bne-	1b\n"				\
+		    "2:	" __ARCH_ACQ_INSTR			\
+		    : "=&r" (__tmp)				\
+		    : "r" (mem), "r" (oldval), "r" (newval)	\
+		    : "cr0", "memory");				\
+  __tmp != 0;							\
+})
+
+#ifdef __powerpc64__
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval)	\
+({								\
+  unsigned long	__tmp;						\
+  __asm __volatile (__ARCH_REL_INSTR "\n"			\
+		    "1:	ldarx	%0,0,%1\n"			\
+		    "	subf.	%0,%2,%0\n"			\
+		    "	bne	2f\n"				\
+		    "	stdcx.	%3,0,%1\n"			\
+		    "	bne-	1b\n"				\
+		    "2:	" __ARCH_ACQ_INSTR			\
+		    : "=&r" (__tmp)				\
+		    : "r" (mem), "r" (oldval), "r" (newval)	\
+		    : "cr0", "memory");				\
+  __tmp != 0;							\
+})
+
+#else /* powerpc32 */
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+  (abort (), 0)
+#endif
+
+#define atomic_full_barrier()	__asm ("sync" ::: "memory")
+#ifdef __powerpc64__
+#define atomic_read_barrier()	__asm ("lwsync" ::: "memory")
+#else
+#define atomic_read_barrier()	__asm ("sync" ::: "memory")
+#endif
+#define atomic_write_barrier()	__asm ("eieio" ::: "memory")
diff --git a/sysdeps/powerpc/powerpc32/atomicity.h b/sysdeps/powerpc/powerpc32/atomicity.h
deleted file mode 100644
index 253bd32673..0000000000
--- a/sysdeps/powerpc/powerpc32/atomicity.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* Low-level functions for atomic operations.  PowerPC version.
-   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H	1
-
-#include <inttypes.h>
-
-static inline int
-__attribute__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
-  int tmp, result;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%2	\n\
-	add%I3	%1,%0,%3	\n\
-	stwcx.	%1,0,%2	\n\
-	bne-	0b	\n\
-" : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-  return result;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
-  int tmp;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%1	\n\
-	add%I2	%0,%0,%2	\n\
-	stwcx.	%0,0,%1	\n\
-	bne-	0b	\n\
-" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
-  int result;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%1	\n\
-	sub%I2c.	%0,%0,%2	\n\
-	cntlzw	%0,%0	\n\
-	bne-	1f	\n\
-	stwcx.	%3,0,%1	\n\
-	bne-	0b	\n\
-1:	\n\
-" : "=&b"(result) : "r"(p), "Ir"(oldval), "r"(newval) : "cr0", "memory");
-  return result >> 5;
-}
-
-static inline long int
-__attribute__ ((unused))
-always_swap (volatile long int *p, long int newval)
-{
-  long int result;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%1	\n\
-	stwcx.	%2,0,%1	\n\
-	bne-	0b	\n\
-" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
-  return result;
-}
-
-static inline int
-__attribute__ ((unused))
-test_and_set (volatile long int *p, long int newval)
-{
-  int result;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%1	\n\
-	cmpwi	%0,0	\n\
-	bne-	1f	\n\
-	stwcx.	%2,0,%1	\n\
-	bne-	0b	\n\
-1:	\n\
-" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
-  return result;
-}
-
-#endif /* atomicity.h */
diff --git a/sysdeps/powerpc/powerpc64/atomicity.h b/sysdeps/powerpc/powerpc64/atomicity.h
deleted file mode 100644
index b9d0de0ac5..0000000000
--- a/sysdeps/powerpc/powerpc64/atomicity.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/* Low-level functions for atomic operations.  PowerPC64 version.
-   Copyright (C) 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H	1
-
-#include <inttypes.h>
-
-#if BROKEN_PPC_ASM_CR0
-# define __ATOMICITY_INLINE /* nothing */
-#else
-# define __ATOMICITY_INLINE inline
-#endif
-
-static __ATOMICITY_INLINE int
-__attribute__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
-  int tmp, result;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%2	\n\
-	add%I3	%1,%0,%3	\n\
-	stwcx.	%1,0,%2	\n\
-	bne-	0b	\n\
-" : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-  return result;
-}
-
-static __ATOMICITY_INLINE void
-__attribute__ ((unused))
-atomic_add_long (volatile long *mem, int val)
-{
-  int tmp;
-  __asm__ ("\n\
-0:	ldarx	%0,0,%1	\n\
-	add%I2	%0,%0,%2	\n\
-	stdcx.	%0,0,%1	\n\
-	bne-	0b	\n\
-" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-}
-
-
-static __ATOMICITY_INLINE int
-__attribute__ ((unused))
-exchange_and_add_long (volatile long *mem, int val)
-{
-  int tmp, result;
-  __asm__ ("\n\
-0:	ldarx	%0,0,%2	\n\
-	add%I3	%1,%0,%3	\n\
-	stdcx.	%1,0,%2	\n\
-	bne-	0b	\n\
-" : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-  return result;
-}
-
-static __ATOMICITY_INLINE void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
-  int tmp;
-  __asm__ ("\n\
-0:	lwarx	%0,0,%1	\n\
-	add%I2	%0,%0,%2	\n\
-	stwcx.	%0,0,%1	\n\
-	bne-	0b	\n\
-" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
-}
-
-static __ATOMICITY_INLINE int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
-  int result;
-  __asm__ ("\n\
-0:	ldarx	%0,0,%1	\n\
-	sub%I2c.	%0,%0,%2	\n\
-	cntlzw	%0,%0	\n\
-	bne-	1f	\n\
-	stdcx.	%3,0,%1	\n\
-	bne-	0b	\n\
-1:	\n\
-" : "=&b"(result) : "r"(p), "Ir"(oldval), "r"(newval) : "cr0", "memory");
-  return result >> 5;
-}
-
-static __ATOMICITY_INLINE long int
-__attribute__ ((unused))
-always_swap (volatile long int *p, long int newval)
-{
-  long int result;
-  __asm__ ("\n\
-0:	ldarx	%0,0,%1	\n\
-	stdcx.	%2,0,%1	\n\
-	bne-	0b	\n\
-" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
-  return result;
-}
-
-static __ATOMICITY_INLINE int
-__attribute__ ((unused))
-test_and_set (volatile long int *p, long int newval)
-{
-  int result;
-  __asm__ ("\n\
-0:	ldarx	%0,0,%1	\n\
-	cmpdi	%0,0	\n\
-	bne-	1f	\n\
-	stdcx.	%2,0,%1	\n\
-	bne-	0b	\n\
-1:	\n\
-" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
-  return result;
-}
-
-#endif /* atomicity.h */
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-12-16 10:42:13 +0000