X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Farch_ppc.h;h=7a217c837dfb1cba0aad10ee0495e4d9adddd6e6;hp=aaf61d30f03e7749823f0aff154987a07398e071;hb=3d02c34dba0edc4a3554a3862a2ae96d77b3b4e8;hpb=b4e52e3e9e563d38607a8e0ab0aa72e7ab2b47b4 diff --git a/urcu/arch_ppc.h b/urcu/arch_ppc.h index aaf61d3..7a217c8 100644 --- a/urcu/arch_ppc.h +++ b/urcu/arch_ppc.h @@ -5,13 +5,13 @@ * arch_ppc.h: trivial definitions for the powerpc architecture. * * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. - * Copyright (c) 2009 Mathieu Desnoyers + * Copyright (c) 2009 Mathieu Desnoyers * * 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 @@ -23,71 +23,16 @@ */ #include -#include +#include -#define CONFIG_HAVE_FENCE 1 -#define CONFIG_HAVE_MEM_COHERENCY +#ifdef __cplusplus +extern "C" { +#endif /* Include size of POWER5+ L3 cache lines: 256 bytes */ #define CACHE_LINE_SIZE 256 -#ifndef BITS_PER_LONG -#define BITS_PER_LONG (__SIZEOF_LONG__ * 8) -#endif - #define mb() asm volatile("sync":::"memory") -#define rmb() asm volatile("sync":::"memory") -#define wmb() asm volatile("sync"::: "memory") - -/* - * Architectures without cache coherency need something like the following: - * - * #define mb() mc() - * #define rmb() rmc() - * #define wmb() wmc() - * #define mc() arch_cache_flush() - * #define rmc() arch_cache_flush_read() - * #define wmc() arch_cache_flush_write() - */ - -#define mc() barrier() -#define rmc() barrier() -#define wmc() barrier() - -/* Assume SMP machine, given we don't have this information */ -#define CONFIG_SMP 1 - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_mc() mc() -#define smp_rmc() rmc() -#define smp_wmc() wmc() -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_mc() barrier() -#define smp_rmc() barrier() -#define smp_wmc() barrier() -#endif - -/* Nop everywhere except on alpha. */ -#define smp_read_barrier_depends() - -static inline void cpu_relax(void) -{ - barrier(); -} - -/* - * Serialize core instruction execution. Also acts as a compiler barrier. - */ -static inline void sync_core() -{ - asm volatile("isync" : : : "memory"); -} #define mftbl() \ ({ \ @@ -119,4 +64,10 @@ static inline cycles_t get_cycles (void) } } +#ifdef __cplusplus +} +#endif + +#include + #endif /* _URCU_ARCH_PPC_H */