include_HEADERS = urcu.h $(top_srcdir)/urcu-*.h
nobase_dist_include_HEADERS = urcu/compiler.h urcu/hlist.h urcu/list.h \
urcu/rculist.h urcu/rcuhlist.h urcu/system.h urcu/urcu-futex.h \
- urcu/uatomic_generic.h urcu/arch_generic.h urcu/wfstack.h \
+ urcu/uatomic_generic.h urcu/arch/generic.h urcu/wfstack.h \
urcu/wfqueue.h urcu/rculfstack.h urcu/rculfqueue.h \
urcu/urcu_ref.h urcu/map/*.h urcu/static/*.h
nobase_nodist_include_HEADERS = urcu/arch.h urcu/uatomic_arch.h urcu/config.h
-EXTRA_DIST = $(top_srcdir)/urcu/arch_*.h $(top_srcdir)/urcu/uatomic_arch_*.h \
+EXTRA_DIST = $(top_srcdir)/urcu/arch/*.h $(top_srcdir)/urcu/uatomic_arch_*.h \
gpl-2.0.txt lgpl-2.1.txt lgpl-relicensing.txt \
README LICENSE compat_arch_x86.c
fi
UATOMICSRC=urcu/uatomic_arch_$ARCHTYPE.h
-ARCHSRC=urcu/arch_$ARCHTYPE.h
+ARCHSRC=urcu/arch/$ARCHTYPE.h
if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then
APISRC=tests/api_gcc.h
else
--- /dev/null
+#ifndef _URCU_ARCH_ALPHA_H
+#define _URCU_ARCH_ALPHA_H
+
+/*
+ * arch_alpha.h: trivial definitions for the Alpha architecture.
+ *
+ * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define cmm_mb() asm volatile("mb":::"memory")
+#define cmm_wmb() asm volatile("wmb":::"memory")
+#define cmm_read_barrier_depends() asm volatile("mb":::"memory")
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ return 0; /* not supported */
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_ALPHA_H */
--- /dev/null
+#ifndef _URCU_ARCH_ARM_H
+#define _URCU_ARCH_ARM_H
+
+/*
+ * arch_arm.h: trivial definitions for the ARM architecture.
+ *
+ * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef CONFIG_RCU_ARM_HAVE_DMB
+#define cmm_mb() asm volatile("dmb":::"memory")
+#define cmm_rmb() asm volatile("dmb":::"memory")
+#define cmm_wmb() asm volatile("dmb":::"memory")
+#endif /* CONFIG_RCU_ARM_HAVE_DMB */
+
+#include <stdlib.h>
+#include <sys/time.h>
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ cycles_t thetime;
+ struct timeval tv;
+
+ if (gettimeofday(&tv, NULL) != 0)
+ return 0;
+ thetime = ((cycles_t)tv.tv_sec) * 1000000ULL + ((cycles_t)tv.tv_usec);
+ return (cycles_t)thetime;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_ARM_H */
--- /dev/null
+#ifndef _URCU_ARCH_GCC_H
+#define _URCU_ARCH_GCC_H
+
+/*
+ * arch_gcc.h: trivial definitions for architectures using gcc __sync_
+ *
+ * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+#include <sys/time.h>
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ cycles_t thetime;
+ struct timeval tv;
+
+ if (gettimeofday(&tv, NULL) != 0)
+ return 0;
+ thetime = ((cycles_t)tv.tv_sec) * 1000000ULL + ((cycles_t)tv.tv_usec);
+ return (cycles_t)thetime;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_GCC_H */
--- /dev/null
+#ifndef _URCU_ARCH_GENERIC_H
+#define _URCU_ARCH_GENERIC_H
+
+/*
+ * arch_generic.h: common definitions for multiple architectures.
+ *
+ * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef CAA_CACHE_LINE_SIZE
+#define CAA_CACHE_LINE_SIZE 64
+#endif
+
+#if !defined(cmm_mc) && !defined(cmm_rmc) && !defined(cmm_wmc)
+#define CONFIG_HAVE_MEM_COHERENCY
+/*
+ * Architectures with cache coherency must _not_ define cmm_mc/cmm_rmc/cmm_wmc.
+ *
+ * For them, cmm_mc/cmm_rmc/cmm_wmc are implemented with a * simple compiler barrier;
+ * in addition, we provide defaults for cmm_mb (using GCC builtins) as well as
+ * cmm_rmb and cmm_wmb (defaulting to cmm_mb).
+ */
+
+#ifndef cmm_mb
+#define cmm_mb() __sync_synchronize()
+#endif
+
+#ifndef cmm_rmb
+#define cmm_rmb() cmm_mb()
+#endif
+
+#ifndef cmm_wmb
+#define cmm_wmb() cmm_mb()
+#endif
+
+#define cmm_mc() cmm_barrier()
+#define cmm_rmc() cmm_barrier()
+#define cmm_wmc() cmm_barrier()
+#else
+/*
+ * Architectures without cache coherency need something like the following:
+ *
+ * #define cmm_mc() arch_cache_flush()
+ * #define cmm_rmc() arch_cache_flush_read()
+ * #define cmm_wmc() arch_cache_flush_write()
+ *
+ * Of these, only cmm_mc is mandatory. cmm_rmc and cmm_wmc default to cmm_mc.
+ * cmm_mb/cmm_rmb/cmm_wmb use these definitions by default:
+ *
+ * #define cmm_mb() cmm_mc()
+ * #define cmm_rmb() cmm_rmc()
+ * #define cmm_wmb() cmm_wmc()
+ */
+
+#ifndef cmm_mb
+#define cmm_mb() cmm_mc()
+#endif
+
+#ifndef cmm_rmb
+#define cmm_rmb() cmm_rmc()
+#endif
+
+#ifndef cmm_wmb
+#define cmm_wmb() cmm_wmc()
+#endif
+
+#ifndef cmm_rmc
+#define cmm_rmc() cmm_mc()
+#endif
+
+#ifndef cmm_wmc
+#define cmm_wmc() cmm_mc()
+#endif
+#endif
+
+/* Nop everywhere except on alpha. */
+#ifndef cmm_read_barrier_depends
+#define cmm_read_barrier_depends()
+#endif
+
+#ifdef CONFIG_RCU_SMP
+#define cmm_smp_mb() cmm_mb()
+#define cmm_smp_rmb() cmm_rmb()
+#define cmm_smp_wmb() cmm_wmb()
+#define cmm_smp_mc() cmm_mc()
+#define cmm_smp_rmc() cmm_rmc()
+#define cmm_smp_wmc() cmm_wmc()
+#define cmm_smp_read_barrier_depends() cmm_read_barrier_depends()
+#else
+#define cmm_smp_mb() cmm_barrier()
+#define cmm_smp_rmb() cmm_barrier()
+#define cmm_smp_wmb() cmm_barrier()
+#define cmm_smp_mc() cmm_barrier()
+#define cmm_smp_rmc() cmm_barrier()
+#define cmm_smp_wmc() cmm_barrier()
+#define cmm_smp_read_barrier_depends()
+#endif
+
+#ifndef caa_cpu_relax
+#define caa_cpu_relax() cmm_barrier()
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _URCU_ARCH_GENERIC_H */
--- /dev/null
+#ifndef _URCU_ARCH_PPC_H
+#define _URCU_ARCH_PPC_H
+
+/*
+ * arch_ppc.h: trivial definitions for the powerpc architecture.
+ *
+ * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Include size of POWER5+ L3 cache lines: 256 bytes */
+#define CAA_CACHE_LINE_SIZE 256
+
+#define cmm_mb() asm volatile("sync":::"memory")
+
+#define mftbl() \
+ ({ \
+ unsigned long rval; \
+ asm volatile("mftbl %0" : "=r" (rval)); \
+ rval; \
+ })
+
+#define mftbu() \
+ ({ \
+ unsigned long rval; \
+ asm volatile("mftbu %0" : "=r" (rval)); \
+ rval; \
+ })
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ long h, l;
+
+ for (;;) {
+ h = mftbu();
+ cmm_barrier();
+ l = mftbl();
+ cmm_barrier();
+ if (mftbu() == h)
+ return (((cycles_t) h) << 32) + l;
+ }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_PPC_H */
--- /dev/null
+#ifndef _URCU_ARCH_S390_H
+#define _URCU_ARCH_S390_H
+
+/*
+ * Trivial definitions for the S390 architecture based on information from the
+ * Principles of Operation "CPU Serialization" (5-91), "BRANCH ON CONDITION"
+ * (7-25) and "STORE CLOCK" (7-169).
+ *
+ * Copyright (c) 2009 Novell, Inc.
+ * Author: Jan Blunck <jblunck@suse.de>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CAA_CACHE_LINE_SIZE 128
+
+#define cmm_mb() __asm__ __volatile__("bcr 15,0" : : : "memory")
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ cycles_t cycles;
+
+ __asm__ __volatile__("stck %0" : "=m" (cycles) : : "cc", "memory" );
+
+ return cycles;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_S390_H */
--- /dev/null
+#ifndef _URCU_ARCH_SPARC64_H
+#define _URCU_ARCH_SPARC64_H
+
+/*
+ * arch_sparc64.h: trivial definitions for the Sparc64 architecture.
+ *
+ * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CAA_CACHE_LINE_SIZE 256
+
+/*
+ * Inspired from the Linux kernel. Workaround Spitfire bug #51.
+ */
+#define membar_safe(type) \
+__asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
+ "membar " type "\n" \
+ "1:\n" \
+ : : : "memory")
+
+#define cmm_mb() membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
+#define cmm_rmb() membar_safe("#LoadLoad")
+#define cmm_wmb() membar_safe("#StoreStore")
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles (void)
+{
+ return 0; /* unimplemented */
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_SPARC64_H */
--- /dev/null
+#ifndef _URCU_ARCH_UNKNOWN_H
+#define _URCU_ARCH_UNKNOWN_H
+
+/*
+ * arch_unknown.h: #error to prevent build on unknown architectures.
+ *
+ * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* See configure.ac for the list of recognized architectures. */
+#error "Cannot build: unrecognized architecture detected."
+
+#endif /* _URCU_ARCH_UNKNOWN_H */
--- /dev/null
+#ifndef _URCU_ARCH_X86_H
+#define _URCU_ARCH_X86_H
+
+/*
+ * arch_x86.h: trivial definitions for the x86 architecture.
+ *
+ * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CAA_CACHE_LINE_SIZE 128
+
+#ifdef CONFIG_RCU_HAVE_FENCE
+#define cmm_mb() asm volatile("mfence":::"memory")
+#define cmm_rmb() asm volatile("lfence":::"memory")
+#define cmm_wmb() asm volatile("sfence"::: "memory")
+#else
+/*
+ * Some non-Intel clones support out of order store. cmm_wmb() ceases to be a
+ * nop for these.
+ */
+#define cmm_mb() asm volatile("lock; addl $0,0(%%esp)":::"memory")
+#define cmm_rmb() asm volatile("lock; addl $0,0(%%esp)":::"memory")
+#define cmm_wmb() asm volatile("lock; addl $0,0(%%esp)"::: "memory")
+#endif
+
+#define caa_cpu_relax() asm volatile("rep; nop" : : : "memory");
+
+#define rdtscll(val) \
+ do { \
+ unsigned int __a, __d; \
+ asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \
+ (val) = ((unsigned long long)__a) \
+ | (((unsigned long long)__d) << 32); \
+ } while(0)
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t caa_get_cycles(void)
+{
+ cycles_t ret = 0;
+
+ rdtscll(ret);
+ return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch/generic.h>
+
+#endif /* _URCU_ARCH_X86_H */
+++ /dev/null
-#ifndef _URCU_ARCH_ALPHA_H
-#define _URCU_ARCH_ALPHA_H
-
-/*
- * arch_alpha.h: trivial definitions for the Alpha architecture.
- *
- * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define cmm_mb() asm volatile("mb":::"memory")
-#define cmm_wmb() asm volatile("wmb":::"memory")
-#define cmm_read_barrier_depends() asm volatile("mb":::"memory")
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- return 0; /* not supported */
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_ALPHA_H */
+++ /dev/null
-#ifndef _URCU_ARCH_ARM_H
-#define _URCU_ARCH_ARM_H
-
-/*
- * arch_arm.h: trivial definitions for the ARM architecture.
- *
- * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef CONFIG_RCU_ARM_HAVE_DMB
-#define cmm_mb() asm volatile("dmb":::"memory")
-#define cmm_rmb() asm volatile("dmb":::"memory")
-#define cmm_wmb() asm volatile("dmb":::"memory")
-#endif /* CONFIG_RCU_ARM_HAVE_DMB */
-
-#include <stdlib.h>
-#include <sys/time.h>
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- cycles_t thetime;
- struct timeval tv;
-
- if (gettimeofday(&tv, NULL) != 0)
- return 0;
- thetime = ((cycles_t)tv.tv_sec) * 1000000ULL + ((cycles_t)tv.tv_usec);
- return (cycles_t)thetime;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_ARM_H */
+++ /dev/null
-#ifndef _URCU_ARCH_GCC_H
-#define _URCU_ARCH_GCC_H
-
-/*
- * arch_gcc.h: trivial definitions for architectures using gcc __sync_
- *
- * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdlib.h>
-#include <sys/time.h>
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- cycles_t thetime;
- struct timeval tv;
-
- if (gettimeofday(&tv, NULL) != 0)
- return 0;
- thetime = ((cycles_t)tv.tv_sec) * 1000000ULL + ((cycles_t)tv.tv_usec);
- return (cycles_t)thetime;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_GCC_H */
+++ /dev/null
-#ifndef _URCU_ARCH_GENERIC_H
-#define _URCU_ARCH_GENERIC_H
-
-/*
- * arch_generic.h: common definitions for multiple architectures.
- *
- * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef CAA_CACHE_LINE_SIZE
-#define CAA_CACHE_LINE_SIZE 64
-#endif
-
-#if !defined(cmm_mc) && !defined(cmm_rmc) && !defined(cmm_wmc)
-#define CONFIG_HAVE_MEM_COHERENCY
-/*
- * Architectures with cache coherency must _not_ define cmm_mc/cmm_rmc/cmm_wmc.
- *
- * For them, cmm_mc/cmm_rmc/cmm_wmc are implemented with a * simple compiler barrier;
- * in addition, we provide defaults for cmm_mb (using GCC builtins) as well as
- * cmm_rmb and cmm_wmb (defaulting to cmm_mb).
- */
-
-#ifndef cmm_mb
-#define cmm_mb() __sync_synchronize()
-#endif
-
-#ifndef cmm_rmb
-#define cmm_rmb() cmm_mb()
-#endif
-
-#ifndef cmm_wmb
-#define cmm_wmb() cmm_mb()
-#endif
-
-#define cmm_mc() cmm_barrier()
-#define cmm_rmc() cmm_barrier()
-#define cmm_wmc() cmm_barrier()
-#else
-/*
- * Architectures without cache coherency need something like the following:
- *
- * #define cmm_mc() arch_cache_flush()
- * #define cmm_rmc() arch_cache_flush_read()
- * #define cmm_wmc() arch_cache_flush_write()
- *
- * Of these, only cmm_mc is mandatory. cmm_rmc and cmm_wmc default to cmm_mc.
- * cmm_mb/cmm_rmb/cmm_wmb use these definitions by default:
- *
- * #define cmm_mb() cmm_mc()
- * #define cmm_rmb() cmm_rmc()
- * #define cmm_wmb() cmm_wmc()
- */
-
-#ifndef cmm_mb
-#define cmm_mb() cmm_mc()
-#endif
-
-#ifndef cmm_rmb
-#define cmm_rmb() cmm_rmc()
-#endif
-
-#ifndef cmm_wmb
-#define cmm_wmb() cmm_wmc()
-#endif
-
-#ifndef cmm_rmc
-#define cmm_rmc() cmm_mc()
-#endif
-
-#ifndef cmm_wmc
-#define cmm_wmc() cmm_mc()
-#endif
-#endif
-
-/* Nop everywhere except on alpha. */
-#ifndef cmm_read_barrier_depends
-#define cmm_read_barrier_depends()
-#endif
-
-#ifdef CONFIG_RCU_SMP
-#define cmm_smp_mb() cmm_mb()
-#define cmm_smp_rmb() cmm_rmb()
-#define cmm_smp_wmb() cmm_wmb()
-#define cmm_smp_mc() cmm_mc()
-#define cmm_smp_rmc() cmm_rmc()
-#define cmm_smp_wmc() cmm_wmc()
-#define cmm_smp_read_barrier_depends() cmm_read_barrier_depends()
-#else
-#define cmm_smp_mb() cmm_barrier()
-#define cmm_smp_rmb() cmm_barrier()
-#define cmm_smp_wmb() cmm_barrier()
-#define cmm_smp_mc() cmm_barrier()
-#define cmm_smp_rmc() cmm_barrier()
-#define cmm_smp_wmc() cmm_barrier()
-#define cmm_smp_read_barrier_depends()
-#endif
-
-#ifndef caa_cpu_relax
-#define caa_cpu_relax() cmm_barrier()
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _URCU_ARCH_GENERIC_H */
+++ /dev/null
-#ifndef _URCU_ARCH_PPC_H
-#define _URCU_ARCH_PPC_H
-
-/*
- * arch_ppc.h: trivial definitions for the powerpc architecture.
- *
- * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Include size of POWER5+ L3 cache lines: 256 bytes */
-#define CAA_CACHE_LINE_SIZE 256
-
-#define cmm_mb() asm volatile("sync":::"memory")
-
-#define mftbl() \
- ({ \
- unsigned long rval; \
- asm volatile("mftbl %0" : "=r" (rval)); \
- rval; \
- })
-
-#define mftbu() \
- ({ \
- unsigned long rval; \
- asm volatile("mftbu %0" : "=r" (rval)); \
- rval; \
- })
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- long h, l;
-
- for (;;) {
- h = mftbu();
- cmm_barrier();
- l = mftbl();
- cmm_barrier();
- if (mftbu() == h)
- return (((cycles_t) h) << 32) + l;
- }
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_PPC_H */
+++ /dev/null
-#ifndef _URCU_ARCH_S390_H
-#define _URCU_ARCH_S390_H
-
-/*
- * Trivial definitions for the S390 architecture based on information from the
- * Principles of Operation "CPU Serialization" (5-91), "BRANCH ON CONDITION"
- * (7-25) and "STORE CLOCK" (7-169).
- *
- * Copyright (c) 2009 Novell, Inc.
- * Author: Jan Blunck <jblunck@suse.de>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define CAA_CACHE_LINE_SIZE 128
-
-#define cmm_mb() __asm__ __volatile__("bcr 15,0" : : : "memory")
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- cycles_t cycles;
-
- __asm__ __volatile__("stck %0" : "=m" (cycles) : : "cc", "memory" );
-
- return cycles;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_S390_H */
+++ /dev/null
-#ifndef _URCU_ARCH_SPARC64_H
-#define _URCU_ARCH_SPARC64_H
-
-/*
- * arch_sparc64.h: trivial definitions for the Sparc64 architecture.
- *
- * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define CAA_CACHE_LINE_SIZE 256
-
-/*
- * Inspired from the Linux kernel. Workaround Spitfire bug #51.
- */
-#define membar_safe(type) \
-__asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
- "membar " type "\n" \
- "1:\n" \
- : : : "memory")
-
-#define cmm_mb() membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
-#define cmm_rmb() membar_safe("#LoadLoad")
-#define cmm_wmb() membar_safe("#StoreStore")
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
- return 0; /* unimplemented */
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_SPARC64_H */
+++ /dev/null
-#ifndef _URCU_ARCH_UNKNOWN_H
-#define _URCU_ARCH_UNKNOWN_H
-
-/*
- * arch_unknown.h: #error to prevent build on unknown architectures.
- *
- * Copyright (c) 2010 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/* See configure.ac for the list of recognized architectures. */
-#error "Cannot build: unrecognized architecture detected."
-
-#endif /* _URCU_ARCH_UNKNOWN_H */
+++ /dev/null
-#ifndef _URCU_ARCH_X86_H
-#define _URCU_ARCH_X86_H
-
-/*
- * arch_x86.h: trivial definitions for the x86 architecture.
- *
- * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-#include <urcu/config.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define CAA_CACHE_LINE_SIZE 128
-
-#ifdef CONFIG_RCU_HAVE_FENCE
-#define cmm_mb() asm volatile("mfence":::"memory")
-#define cmm_rmb() asm volatile("lfence":::"memory")
-#define cmm_wmb() asm volatile("sfence"::: "memory")
-#else
-/*
- * Some non-Intel clones support out of order store. cmm_wmb() ceases to be a
- * nop for these.
- */
-#define cmm_mb() asm volatile("lock; addl $0,0(%%esp)":::"memory")
-#define cmm_rmb() asm volatile("lock; addl $0,0(%%esp)":::"memory")
-#define cmm_wmb() asm volatile("lock; addl $0,0(%%esp)"::: "memory")
-#endif
-
-#define caa_cpu_relax() asm volatile("rep; nop" : : : "memory");
-
-#define rdtscll(val) \
- do { \
- unsigned int __a, __d; \
- asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \
- (val) = ((unsigned long long)__a) \
- | (((unsigned long long)__d) << 32); \
- } while(0)
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles(void)
-{
- cycles_t ret = 0;
-
- rdtscll(ret);
- return ret;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <urcu/arch_generic.h>
-
-#endif /* _URCU_ARCH_X86_H */
projects / userspace-rcu.git / commitdiff
