1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_MACHTHREAD_H 28 #define _SYS_MACHTHREAD_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/asi.h> 33 #include <sys/sun4asi.h> 34 #include <sys/machasi.h> 35 #include <sys/bitmap.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #ifdef _ASM 42 43 #define THREAD_REG %g7 /* pointer to current thread data */ 44 45 /* 46 * CPU_INDEX(r, scr) 47 * Returns cpu id in r. 48 */ 49 #define CPU_INDEX(r, scr) \ 50 mov SCRATCHPAD_CPUID, scr; \ 51 ldxa [scr]ASI_SCRATCHPAD, r 52 53 /* 54 * Given a cpu id extract the appropriate word 55 * in the cpuset mask for this cpu id. 56 */ 57 #if CPUSET_SIZE > CLONGSIZE 58 #define CPU_INDEXTOSET(base, index, scr) \ 59 srl index, BT_ULSHIFT, scr; \ 60 and index, BT_ULMASK, index; \ 61 sll scr, CLONGSHIFT, scr; \ 62 add base, scr, base 63 #else 64 #define CPU_INDEXTOSET(base, index, scr) 65 #endif /* CPUSET_SIZE */ 66 67 68 /* 69 * Assembly macro to find address of the current CPU. 70 * Used when coming in from a user trap - cannot use THREAD_REG. 71 * Args are destination register and one scratch register. 72 */ 73 #define CPU_ADDR(reg, scr) \ 74 .global cpu; \ 75 CPU_INDEX(scr, reg); \ 76 sll scr, CPTRSHIFT, scr; \ 77 set cpu, reg; \ 78 ldn [reg + scr], reg 79 80 #define CINT64SHIFT 3 81 82 /* 83 * Assembly macro to find the physical address of the current CPU. 84 * All memory references using VA must be limited to nucleus 85 * memory to avoid any MMU side effect. 86 */ 87 #define CPU_PADDR(reg, scr) \ 88 .global cpu_pa; \ 89 CPU_INDEX(scr, reg); \ 90 sll scr, CINT64SHIFT, scr; \ 91 set cpu_pa, reg; \ 92 ldx [reg + scr], reg 93 94 #endif /* _ASM */ 95 96 #ifdef __cplusplus 97 } 98 #endif 99 100 #endif /* _SYS_MACHTHREAD_H */ 101