| /*- |
| * Copyright (c) 2001 Jake Burkholder. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $FreeBSD: src/sys/sparc64/include/cpufunc.h,v 1.20.2.1 2005/08/05 19:46:13 jhb Exp $ |
| */ |
| |
| #ifndef _MACHINE_CPUFUNC_H_ |
| #define _MACHINE_CPUFUNC_H_ |
| |
| #include "asi.h" |
| |
| /* |
| * membar operand macros for use in other macros when # is a special |
| * character. Keep these in sync with what the hardware expects. |
| */ |
| #define C_Lookaside (0) |
| #define C_MemIssue (1) |
| #define C_Sync (2) |
| #define M_LoadLoad (0) |
| #define M_StoreLoad (1) |
| #define M_LoadStore (2) |
| #define M_StoreStore (3) |
| |
| #define CMASK_SHIFT (4) |
| #define MMASK_SHIFT (0) |
| |
| #define CMASK_GEN(bit) ((1 << (bit)) << CMASK_SHIFT) |
| #define MMASK_GEN(bit) ((1 << (bit)) << MMASK_SHIFT) |
| |
| #define Lookaside CMASK_GEN(C_Lookaside) |
| #define MemIssue CMASK_GEN(C_MemIssue) |
| #define Sync CMASK_GEN(C_Sync) |
| #define LoadLoad MMASK_GEN(M_LoadLoad) |
| #define StoreLoad MMASK_GEN(M_StoreLoad) |
| #define LoadStore MMASK_GEN(M_LoadStore) |
| #define StoreStore MMASK_GEN(M_StoreStore) |
| |
| #define casa(rs1, rs2, rd, asi) ({ \ |
| u_int __rd = (uint32_t)(rd); \ |
| __asm __volatile("casa [%2] %3, %4, %0" \ |
| : "+r" (__rd), "=m" (*rs1) \ |
| : "r" (rs1), "n" (asi), "r" (rs2), "m" (*rs1)); \ |
| __rd; \ |
| }) |
| |
| #define casxa(rs1, rs2, rd, asi) ({ \ |
| u_long __rd = (uint64_t)(rd); \ |
| __asm __volatile("casxa [%2] %3, %4, %0" \ |
| : "+r" (__rd), "=m" (*rs1) \ |
| : "r" (rs1), "n" (asi), "r" (rs2), "m" (*rs1)); \ |
| __rd; \ |
| }) |
| |
| #define membar(mask) do { \ |
| __asm __volatile("membar %0" : : "n" (mask) : "memory"); \ |
| } while (0) |
| |
| #undef LDNC_GEN |
| #undef STNC_GEN |
| |
| #endif /* !_MACHINE_CPUFUNC_H_ */ |
