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
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#if defined(lint)
#include <sys/types.h>
#include <sys/cpuvar.h>
#else /*lint */
#include "assym.h"
#endif /* lint */
#include <sys/asm_linkage.h>
#include <sys/privregs.h>
#include <sys/x_call.h>
#include <sys/xc_impl.h>
#include <sys/machthread.h>
#include <sys/hypervisor_api.h>
#ifdef TRAPTRACE
#include <sys/traptrace.h>
#endif /* TRAPTRACE */
#if defined(lint)
/* ARGSUSED */
void
self_xcall(struct cpu *cpu, uint64_t arg1, uint64_t arg2, xcfunc_t *func)
{}
#else
/*
* Entered by the software trap (TT=ST_SELFXCALL, TL>0) thru send_self_xcall().
* Emulate the mondo handler - vec_interrupt().
*
* Global registers are the Alternate Globals.
* Arguments:
* %o0 - CPU
* ILP32 kernel:
* %o5 - function to call
* %o1, %o2, %o3, %o4 - arguments
* LP64 kernel:
* %o3 - function to call
* %o1, %o2 - arguments
*/
ENTRY_NP(self_xcall)
!
! TL>0 handlers are expected to do "retry"
! prepare their return PC and nPC now
!
rdpr %tnpc, %g1
wrpr %g1, %tpc ! PC <- TNPC[TL]
add %g1, 4, %g1
wrpr %g1, %tnpc ! nPC <- TNPC[TL] + 4
#ifdef TRAPTRACE
TRACE_PTR(%g4, %g6)
GET_TRACE_TICK(%g6, %g3)
stxa %g6, [%g4 + TRAP_ENT_TICK]%asi
rdpr %tl, %g6
stha %g6, [%g4 + TRAP_ENT_TL]%asi
rdpr %tt, %g6
stha %g6, [%g4 + TRAP_ENT_TT]%asi
stna %o3, [%g4 + TRAP_ENT_TR]%asi ! pc of the TL>0 handler
rdpr %tpc, %g6
stna %g6, [%g4 + TRAP_ENT_TPC]%asi
rdpr %tstate, %g6
stxa %g6, [%g4 + TRAP_ENT_TSTATE]%asi
stna %sp, [%g4 + TRAP_ENT_SP]%asi
stna %o1, [%g4 + TRAP_ENT_F1]%asi ! arg 1
stna %o2, [%g4 + TRAP_ENT_F2]%asi ! arg 2
stna %g0, [%g4 + TRAP_ENT_F3]%asi
stna %g0, [%g4 + TRAP_ENT_F4]%asi
TRACE_NEXT(%g4, %g6, %g3)
#endif /* TRAPTRACE */
!
! Load the arguments for the fast trap handler.
!
mov %o1, %g1
jmp %o3 ! call the fast trap handler
mov %o2, %g2
/* Not Reached */
SET_SIZE(self_xcall)
#endif /* lint */
#ifdef TRAPTRACE
#if defined(lint)
/* ARGSUSED */
void
xc_trace(u_int traptype, cpuset_t *cpu_set, xcfunc_t *func,
uint64_t arg1, uint64_t arg2)
{}
#else /* lint */
ENTRY(xc_trace)
rdpr %pstate, %g1
andn %g1, PSTATE_IE | PSTATE_AM, %g2
wrpr %g0, %g2, %pstate /* disable interrupts */
TRACE_PTR(%g3, %g4)
GET_TRACE_TICK(%g6, %g4)
stxa %g6, [%g3 + TRAP_ENT_TICK]%asi
stha %g0, [%g3 + TRAP_ENT_TL]%asi
set TT_XCALL, %g2
or %o0, %g2, %g4
stha %g4, [%g3 + TRAP_ENT_TT]%asi
stna %o7, [%g3 + TRAP_ENT_TPC]%asi
ldn [%o1], %g2
stna %g2, [%g3 + TRAP_ENT_SP]%asi /* sp = cpuset */
stna %o2, [%g3 + TRAP_ENT_TR]%asi /* tr = func */
stna %o3, [%g3 + TRAP_ENT_F1]%asi /* f1 = arg1 */
stna %o4, [%g3 + TRAP_ENT_F2]%asi /* f2 = arg2 */
stna %g0, [%g3 + TRAP_ENT_F3]%asi /* f3 = 0 */
stna %i7, [%g3 + TRAP_ENT_F4]%asi /* f4 = xcall caller */
stxa %g1, [%g3 + TRAP_ENT_TSTATE]%asi /* tstate = pstate */
TRACE_NEXT(%g2, %g3, %g4)
/*
* In the case of a cpuset of greater size than a long we
* grab extra trace buffers just to store the cpuset.
* Seems like a waste but popular opinion opted for this
* rather than increase the size of the buffer.
*/
#if CPUSET_SIZE > CLONGSIZE
add %o1, CPUSET_SIZE, %g5 /* end of cpuset */
clr %o2
1:
TRACE_PTR(%g3, %g4)
stha %g0, [%g3 + TRAP_ENT_TL]%asi
set TT_XCALL_CONT, %g2
or %g2, %o2, %g2 /* continuation # */
stha %g2, [%g3 + TRAP_ENT_TT]%asi
stxa %g6, [%g3 + TRAP_ENT_TICK]%asi /* same tick */
stna %g0, [%g3 + TRAP_ENT_TPC]%asi /* clr unused fields */
stna %g0, [%g3 + TRAP_ENT_SP]%asi
stna %g0, [%g3 + TRAP_ENT_TR]%asi
stxa %g0, [%g3 + TRAP_ENT_TSTATE]%asi
stna %g0, [%g3 + TRAP_ENT_F2]%asi
stna %g0, [%g3 + TRAP_ENT_F3]%asi
stna %g0, [%g3 + TRAP_ENT_F4]%asi
ldn [%o1], %g2
stna %g2, [%g3 + TRAP_ENT_F1]%asi
add %o1, CLONGSIZE, %o1
cmp %o1, %g5
bge 2f
ldn [%o1], %g2
stna %g2, [%g3 + TRAP_ENT_F2]%asi
add %o1, CLONGSIZE, %o1
cmp %o1, %g5
bge 2f
ldn [%o1], %g2
stna %g2, [%g3 + TRAP_ENT_F3]%asi
add %o1, CLONGSIZE, %o1
cmp %o1, %g5
bge 2f
ldn [%o1], %g2
stna %g2, [%g3 + TRAP_ENT_F4]%asi
add %o1, CLONGSIZE, %o1
2:
TRACE_NEXT(%g2, %g3, %g4)
cmp %o1, %g5
bl 1b
inc %o2
#endif /* CPUSET_SIZE */
retl
wrpr %g0, %g1, %pstate /* enable interrupts */
SET_SIZE(xc_trace)
#endif /* lint */
#endif /* TRAPTRACE */
#if defined(lint)
/*ARGSUSED*/
void
init_mondo(xcfunc_t *func, uint64_t arg1, uint64_t arg2)
{}
/*ARGSUSED*/
int
shipit(int n, uint64_t cpuid)
{ return(0); }
#else /* lint */
/*
* Setup interrupt dispatch data registers
* Entry:
* %o0 - function or inumber to call
* %o1, %o2 - arguments (2 uint64_t's)
*/
ENTRY(init_mondo)
ALTENTRY(init_mondo_nocheck)
CPU_ADDR(%g1, %g4) ! load CPU struct addr
add %g1, CPU_MCPU, %g1
ldx [%g1 + MCPU_MONDO_DATA], %g1
stx %o0, [%g1]
stx %o1, [%g1+8]
stx %o2, [%g1+0x10]
stx %g0, [%g1+0x18]
stx %g0, [%g1+0x20]
stx %g0, [%g1+0x28]
stx %g0, [%g1+0x30]
stx %g0, [%g1+0x38]
retl
membar #Sync ! allowed to be in the delay slot
SET_SIZE(init_mondo)
/*
* Ship mondo to cpuid
*/
ENTRY_NP(shipit)
/* For now use dummy interface: cpu# func arg1 arg2 */
CPU_ADDR(%g1, %g4)
add %g1, CPU_MCPU, %g1
ldx [%g1 + MCPU_MONDO_DATA_RA], %o2
mov HV_INTR_SEND, %o5
ta FAST_TRAP
retl
membar #Sync
SET_SIZE(shipit)
#endif /* lint */
#if defined(lint)
/*ARGSUSED*/
uint64_t
get_cpuaddr(uint64_t reg, uint64_t scr)
{ return (0);}
#else /* lint */
/*
* Get cpu structure
* Entry:
* %o0 - register for CPU_ADDR macro
* %o1 - scratch for CPU_ADDR macro
*/
ENTRY(get_cpuaddr)
CPU_ADDR(%o0, %o1) ! %o0 == CPU struct addr
retl
nop
SET_SIZE(get_cpuaddr)
#endif /* lint */
#if defined(lint)
/* ARGSUSED */
void
xt_sync_tl1(uint64_t *cpu_sync_addr)
{}
#else /* lint */
/*
* This is to ensure that previously called xtrap handlers have executed on
* sun4v. We zero out the byte corresponding to its cpuid in the
* array passed to us from xt_sync(), so the sender knows the previous
* mondo has been executed.
* Register:
* %g1 - Addr of the cpu_sync array.
*/
ENTRY_NP(xt_sync_tl1)
CPU_INDEX(%g3, %g4) /* %g3 = cpu id */
stb %g0, [%g1 + %g3]
retry
SET_SIZE(xt_sync_tl1)
#endif /* lint */
|
