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
38*22ce4affSfengbojiang typedef int (*pcpu_bp_harden)(void);
39*22ce4affSfengbojiang typedef int (*pcpu_ssbd)(int);
40*22ce4affSfengbojiang struct debug_monitor_state;
41*22ce4affSfengbojiang
42a9643ea8Slogwang #define PCPU_MD_FIELDS \
43a9643ea8Slogwang u_int pc_acpi_id; /* ACPI CPU id */ \
44a9643ea8Slogwang u_int pc_midr; /* stored MIDR value */ \
45*22ce4affSfengbojiang uint64_t pc_clock; \
46*22ce4affSfengbojiang pcpu_bp_harden pc_bp_harden; \
47*22ce4affSfengbojiang pcpu_ssbd pc_ssbd; \
48*22ce4affSfengbojiang struct pmap *pc_curpmap; \
49*22ce4affSfengbojiang struct pmap *pc_curvmpmap; \
50*22ce4affSfengbojiang u_int pc_bcast_tlbi_workaround; \
51*22ce4affSfengbojiang u_int pc_mpidr; /* stored MPIDR value */ \
52*22ce4affSfengbojiang char __pad[201]
53a9643ea8Slogwang
54a9643ea8Slogwang #ifdef _KERNEL
55a9643ea8Slogwang
56a9643ea8Slogwang struct pcb;
57a9643ea8Slogwang struct pcpu;
58a9643ea8Slogwang
59*22ce4affSfengbojiang register struct pcpu *pcpup __asm ("x18");
60a9643ea8Slogwang
61*22ce4affSfengbojiang #define get_pcpu() pcpup
62a9643ea8Slogwang
63a9643ea8Slogwang static inline struct thread *
get_curthread(void)64a9643ea8Slogwang get_curthread(void)
65a9643ea8Slogwang {
66a9643ea8Slogwang struct thread *td;
67a9643ea8Slogwang
68a9643ea8Slogwang __asm __volatile("ldr %0, [x18]" : "=&r"(td));
69a9643ea8Slogwang return (td);
70a9643ea8Slogwang }
71a9643ea8Slogwang
72a9643ea8Slogwang #define curthread get_curthread()
73*22ce4affSfengbojiang #ifdef FSTACK
74eb3a5857Sdongbo4 #undef curthread
75*22ce4affSfengbojiang #endif
76a9643ea8Slogwang
77*22ce4affSfengbojiang #define PCPU_GET(member) (pcpup->pc_ ## member)
78*22ce4affSfengbojiang #define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value))
79a9643ea8Slogwang #define PCPU_INC(member) PCPU_ADD(member, 1)
80*22ce4affSfengbojiang #define PCPU_PTR(member) (&pcpup->pc_ ## member)
81*22ce4affSfengbojiang #define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
82a9643ea8Slogwang
83a9643ea8Slogwang #endif /* _KERNEL */
84a9643ea8Slogwang
85a9643ea8Slogwang #endif /* !_MACHINE_PCPU_H_ */
86