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
|
/*
* hibernate_asm.S: Hibernaton support specific for sparc64.
*
* Copyright (C) 2013 Kirill V Tkhai (tkhai@yandex.ru)
*/
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/cpudata.h>
#include <asm/page.h>
ENTRY(swsusp_arch_suspend)
save %sp, -128, %sp
save %sp, -128, %sp
flushw
setuw saved_context, %g3
/* Save window regs */
rdpr %cwp, %g2
stx %g2, [%g3 + SC_REG_CWP]
rdpr %wstate, %g2
stx %g2, [%g3 + SC_REG_WSTATE]
stx %fp, [%g3 + SC_REG_FP]
/* Save state regs */
rdpr %tick, %g2
stx %g2, [%g3 + SC_REG_TICK]
rdpr %pstate, %g2
stx %g2, [%g3 + SC_REG_PSTATE]
/* Save global regs */
stx %g4, [%g3 + SC_REG_G4]
stx %g5, [%g3 + SC_REG_G5]
stx %g6, [%g3 + SC_REG_G6]
call swsusp_save
nop
mov %o0, %i0
restore
mov %o0, %i0
ret
restore
ENTRY(swsusp_arch_resume)
/* Write restore_pblist to %l0 */
sethi %hi(restore_pblist), %l0
ldx [%l0 + %lo(restore_pblist)], %l0
call __flush_tlb_all
nop
/* Write PAGE_OFFSET to %g7 */
sethi %hi(PAGE_OFFSET), %g7
ldx [%g7 + %lo(PAGE_OFFSET)], %g7
setuw (PAGE_SIZE-8), %g3
/* Use MMU Bypass */
rd %asi, %g1
wr %g0, ASI_PHYS_USE_EC, %asi
ba fill_itlb
nop
pbe_loop:
cmp %l0, %g0
be restore_ctx
sub %l0, %g7, %l0
ldxa [%l0 ] %asi, %l1 /* address */
ldxa [%l0 + 8] %asi, %l2 /* orig_address */
/* phys addr */
sub %l1, %g7, %l1
sub %l2, %g7, %l2
mov %g3, %l3 /* PAGE_SIZE-8 */
copy_loop:
ldxa [%l1 + %l3] ASI_PHYS_USE_EC, %g2
stxa %g2, [%l2 + %l3] ASI_PHYS_USE_EC
cmp %l3, %g0
bne copy_loop
sub %l3, 8, %l3
/* next pbe */
ba pbe_loop
ldxa [%l0 + 16] %asi, %l0
restore_ctx:
setuw saved_context, %g3
/* Restore window regs */
wrpr %g0, 0, %canrestore
wrpr %g0, 0, %otherwin
wrpr %g0, 6, %cansave
wrpr %g0, 0, %cleanwin
ldxa [%g3 + SC_REG_CWP] %asi, %g2
wrpr %g2, %cwp
ldxa [%g3 + SC_REG_WSTATE] %asi, %g2
wrpr %g2, %wstate
ldxa [%g3 + SC_REG_FP] %asi, %fp
/* Restore state regs */
ldxa [%g3 + SC_REG_PSTATE] %asi, %g2
wrpr %g2, %pstate
ldxa [%g3 + SC_REG_TICK] %asi, %g2
wrpr %g2, %tick
/* Restore global regs */
ldxa [%g3 + SC_REG_G4] %asi, %g4
ldxa [%g3 + SC_REG_G5] %asi, %g5
ldxa [%g3 + SC_REG_G6] %asi, %g6
wr %g1, %g0, %asi
restore
restore
wrpr %g0, 14, %pil
retl
mov %g0, %o0
fill_itlb:
ba pbe_loop
wrpr %g0, 15, %pil
|
