summaryrefslogtreecommitdiffstats
path: root/sys/sparc64/include/smp.h
blob: b51425d0747697ee7f5d806cb3630b4a00fee873 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
/*-
 * 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.
 *
 * $FreeBSD$
 */

#ifndef	_MACHINE_SMP_H_
#define	_MACHINE_SMP_H_

#define	CPU_CLKSYNC		1
#define	CPU_INIT		2
#define	CPU_BOOTSTRAP		3

#ifndef	LOCORE

#include <machine/intr_machdep.h>
#include <machine/tte.h>

#define	IDR_BUSY	(1<<0)
#define	IDR_NACK	(1<<1)

#define	IPI_AST		PIL_AST
#define	IPI_RENDEZVOUS	PIL_RENDEZVOUS
#define	IPI_STOP	PIL_STOP

#define	IPI_RETRIES	5000

struct cpu_start_args {
	u_int	csa_count;
	u_int	csa_mid;
	u_int	csa_state;
	vm_offset_t csa_pcpu;
	u_long	csa_tick;
	u_long	csa_ver;
	struct	tte csa_ttes[PCPU_PAGES];
};

struct ipi_cache_args {
	u_int	ica_mask;
	vm_paddr_t ica_pa;
};

struct ipi_tlb_args {
	u_int	ita_mask;
	struct	pmap *ita_pmap;
	u_long	ita_start;
	u_long	ita_end;
};
#define	ita_va	ita_start

struct pcpu;

void	cpu_mp_bootstrap(struct pcpu *pc);
void	cpu_mp_shutdown(void);

void	cpu_ipi_selected(u_int cpus, u_long d0, u_long d1, u_long d2);
void	cpu_ipi_send(u_int mid, u_long d0, u_long d1, u_long d2);

void	ipi_selected(u_int cpus, u_int ipi);
void	ipi_all(u_int ipi);
void	ipi_all_but_self(u_int ipi);

vm_offset_t mp_tramp_alloc(void);

extern	struct mtx ipi_mtx;
extern	struct ipi_cache_args ipi_cache_args;
extern	struct ipi_tlb_args ipi_tlb_args;

extern	vm_offset_t mp_tramp;
extern	char *mp_tramp_code;
extern	u_long mp_tramp_code_len;
extern	u_long mp_tramp_tlb_slots;
extern	u_long mp_tramp_func;

extern	void mp_startup(void);

extern	char tl_ipi_cheetah_dcache_page_inval[];
extern	char tl_ipi_spitfire_dcache_page_inval[];
extern	char tl_ipi_spitfire_icache_page_inval[];

extern	char tl_ipi_level[];
extern	char tl_ipi_tlb_context_demap[];
extern	char tl_ipi_tlb_page_demap[];
extern	char tl_ipi_tlb_range_demap[];

#ifdef SMP

#if defined(_MACHINE_PMAP_H_) && defined(_SYS_MUTEX_H_)

static __inline void *
ipi_dcache_page_inval(void *func, vm_paddr_t pa)
{
	struct ipi_cache_args *ica;

	if (smp_cpus == 1)
		return (NULL);
	ica = &ipi_cache_args;
	mtx_lock_spin(&ipi_mtx);
	ica->ica_mask = all_cpus;
	ica->ica_pa = pa;
	cpu_ipi_selected(PCPU_GET(other_cpus), 0, (u_long)func, (u_long)ica);
	return (&ica->ica_mask);
}

static __inline void *
ipi_icache_page_inval(void *func, vm_paddr_t pa)
{
	struct ipi_cache_args *ica;

	if (smp_cpus == 1)
		return (NULL);
	ica = &ipi_cache_args;
	mtx_lock_spin(&ipi_mtx);
	ica->ica_mask = all_cpus;
	ica->ica_pa = pa;
	cpu_ipi_selected(PCPU_GET(other_cpus), 0, (u_long)func, (u_long)ica);
	return (&ica->ica_mask);
}

static __inline void *
ipi_tlb_context_demap(struct pmap *pm)
{
	struct ipi_tlb_args *ita;
	u_int cpus;

	if (smp_cpus == 1)
		return (NULL);
	if ((cpus = (pm->pm_active & PCPU_GET(other_cpus))) == 0)
		return (NULL);
	ita = &ipi_tlb_args;
	mtx_lock_spin(&ipi_mtx);
	ita->ita_mask = cpus | PCPU_GET(cpumask);
	ita->ita_pmap = pm;
	cpu_ipi_selected(cpus, 0, (u_long)tl_ipi_tlb_context_demap,
	    (u_long)ita);
	return (&ita->ita_mask);
}

static __inline void *
ipi_tlb_page_demap(struct pmap *pm, vm_offset_t va)
{
	struct ipi_tlb_args *ita;
	u_int cpus;

	if (smp_cpus == 1)
		return (NULL);
	if ((cpus = (pm->pm_active & PCPU_GET(other_cpus))) == 0)
		return (NULL);
	ita = &ipi_tlb_args;
	mtx_lock_spin(&ipi_mtx);
	ita->ita_mask = cpus | PCPU_GET(cpumask);
	ita->ita_pmap = pm;
	ita->ita_va = va;
	cpu_ipi_selected(cpus, 0, (u_long)tl_ipi_tlb_page_demap, (u_long)ita);
	return (&ita->ita_mask);
}

static __inline void *
ipi_tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end)
{
	struct ipi_tlb_args *ita;
	u_int cpus;

	if (smp_cpus == 1)
		return (NULL);
	if ((cpus = (pm->pm_active & PCPU_GET(other_cpus))) == 0)
		return (NULL);
	ita = &ipi_tlb_args;
	mtx_lock_spin(&ipi_mtx);
	ita->ita_mask = cpus | PCPU_GET(cpumask);
	ita->ita_pmap = pm;
	ita->ita_start = start;
	ita->ita_end = end;
	cpu_ipi_selected(cpus, 0, (u_long)tl_ipi_tlb_range_demap, (u_long)ita);
	return (&ita->ita_mask);
}

static __inline void
ipi_wait(void *cookie)
{
	volatile u_int *mask;

	if ((mask = cookie) != NULL) {
		atomic_clear_int(mask, PCPU_GET(cpumask));
		while (*mask != 0)
			;
		mtx_unlock_spin(&ipi_mtx);
	}
}

#endif /* _MACHINE_PMAP_H_ && _SYS_MUTEX_H_ */

#else

static __inline void *
ipi_dcache_page_inval(void *func, vm_paddr_t pa)
{
	return (NULL);
}

static __inline void *
ipi_icache_page_inval(void *func, vm_paddr_t pa)
{
	return (NULL);
}

static __inline void *
ipi_tlb_context_demap(struct pmap *pm)
{
	return (NULL);
}

static __inline void *
ipi_tlb_page_demap(struct pmap *pm, vm_offset_t va)
{
	return (NULL);
}

static __inline void *
ipi_tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end)
{
	return (NULL);
}

static __inline void
ipi_wait(void *cookie)
{
}

#endif /* SMP */

#endif /* !LOCORE */

#endif /* !_MACHINE_SMP_H_ */
OpenPOWER on IntegriCloud