1a9643ea8Slogwang /*- 2a9643ea8Slogwang * Copyright (c) 1999 Luoqi Chen <[email protected]> 3a9643ea8Slogwang * All rights reserved. 4a9643ea8Slogwang * 5a9643ea8Slogwang * Redistribution and use in source and binary forms, with or without 6a9643ea8Slogwang * modification, are permitted provided that the following conditions 7a9643ea8Slogwang * are met: 8a9643ea8Slogwang * 1. Redistributions of source code must retain the above copyright 9a9643ea8Slogwang * notice, this list of conditions and the following disclaimer. 10a9643ea8Slogwang * 2. Redistributions in binary form must reproduce the above copyright 11a9643ea8Slogwang * notice, this list of conditions and the following disclaimer in the 12a9643ea8Slogwang * documentation and/or other materials provided with the distribution. 13a9643ea8Slogwang * 14a9643ea8Slogwang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15a9643ea8Slogwang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16a9643ea8Slogwang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17a9643ea8Slogwang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18a9643ea8Slogwang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19a9643ea8Slogwang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20a9643ea8Slogwang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21a9643ea8Slogwang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22a9643ea8Slogwang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23a9643ea8Slogwang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24a9643ea8Slogwang * SUCH DAMAGE. 25a9643ea8Slogwang * 26a9643ea8Slogwang * from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27 27a9643ea8Slogwang * $FreeBSD$ 28a9643ea8Slogwang */ 29a9643ea8Slogwang 30a9643ea8Slogwang #ifndef _MACHINE_PCPU_H_ 31a9643ea8Slogwang #define _MACHINE_PCPU_H_ 32a9643ea8Slogwang 33a9643ea8Slogwang #include <machine/cpu.h> 34a9643ea8Slogwang #include <machine/cpufunc.h> 35a9643ea8Slogwang 36a9643ea8Slogwang #define ALT_STACK_SIZE 128 37a9643ea8Slogwang 38a9643ea8Slogwang #define PCPU_MD_FIELDS \ 39a9643ea8Slogwang u_int pc_acpi_id; /* ACPI CPU id */ \ 40a9643ea8Slogwang u_int pc_midr; /* stored MIDR value */ \ 41a9643ea8Slogwang char __pad[121] 42a9643ea8Slogwang 43a9643ea8Slogwang #ifdef _KERNEL 44a9643ea8Slogwang 45a9643ea8Slogwang struct pcb; 46a9643ea8Slogwang struct pcpu; 47a9643ea8Slogwang 48a9643ea8Slogwang static inline struct pcpu * 49a9643ea8Slogwang get_pcpu(void) 50a9643ea8Slogwang { 51a9643ea8Slogwang struct pcpu *pcpu; 52a9643ea8Slogwang 53a9643ea8Slogwang __asm __volatile("mov %0, x18" : "=&r"(pcpu)); 54a9643ea8Slogwang return (pcpu); 55a9643ea8Slogwang } 56a9643ea8Slogwang 57a9643ea8Slogwang static inline struct thread * 58a9643ea8Slogwang get_curthread(void) 59a9643ea8Slogwang { 60a9643ea8Slogwang struct thread *td; 61a9643ea8Slogwang 62a9643ea8Slogwang __asm __volatile("ldr %0, [x18]" : "=&r"(td)); 63a9643ea8Slogwang return (td); 64a9643ea8Slogwang } 65a9643ea8Slogwang 66a9643ea8Slogwang #define curthread get_curthread() 67*eb3a5857Sdongbo4 #undef curthread 68a9643ea8Slogwang 69a9643ea8Slogwang #define PCPU_GET(member) (get_pcpu()->pc_ ## member) 70a9643ea8Slogwang #define PCPU_ADD(member, value) (get_pcpu()->pc_ ## member += (value)) 71a9643ea8Slogwang #define PCPU_INC(member) PCPU_ADD(member, 1) 72a9643ea8Slogwang #define PCPU_PTR(member) (&get_pcpu()->pc_ ## member) 73a9643ea8Slogwang #define PCPU_SET(member,value) (get_pcpu()->pc_ ## member = (value)) 74a9643ea8Slogwang 75a9643ea8Slogwang #endif /* _KERNEL */ 76a9643ea8Slogwang 77a9643ea8Slogwang #endif /* !_MACHINE_PCPU_H_ */ 78