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
|
/*
* PowerPC SPU-specific syscalls decoders.
*
* Copyright (c) 2018-2022 Eugene Syromyatnikov <evgsyr@gmail.com>
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#if defined POWERPC || defined POWERPC64
# include "xstring.h"
/* defined in arch/powerpc/include/asm/spu.h */
# include "xlat/spu_create_flags.h"
# include "xlat/spu_run_events.h"
# include "xlat/spu_run_status_flags.h"
SYS_FUNC(spu_create)
{
kernel_ulong_t pathname = tcp->u_arg[0];
unsigned int flags = tcp->u_arg[1];
unsigned short mode = tcp->u_arg[2];
int neighbor_fd = tcp->u_arg[3];
/* pathname */
printpath(tcp, pathname);
/* flags */
tprint_arg_next();
printflags_ex(flags, "SPU_CREATE_???",
xlat_verbose(xlat_verbosity) == XLAT_STYLE_RAW
? XLAT_STYLE_RAW : XLAT_STYLE_VERBOSE,
spu_create_flags, NULL);
/* mode */
tprint_arg_next();
print_numeric_umode_t(mode);
/* neighbor_fd */
if (flags & SPU_CREATE_AFFINITY_SPU) {
tprint_arg_next();
printfd(tcp, neighbor_fd);
}
return RVAL_DECODED | RVAL_FD;
}
static const char *
sprint_spu_status(unsigned long status)
{
enum {
SPU_STOP_STATUS_SHIFT = 16,
SPU_STOP_STATUS_MASK = 0x3fff,
SPU_STATUS_MASK = (1 << SPU_STOP_STATUS_SHIFT) - 1,
SPU_STOP_MASK_SHIFTED = SPU_STOP_STATUS_MASK
<< SPU_STOP_STATUS_SHIFT,
};
static char outstr[spu_run_status_flags_flags_strsz
+ sizeof("|0x3fff<<SPU_STOP_STATUS_SHIFT|")
+ sizeof(status) * 2 + 2];
const unsigned long st = status & spu_run_status_flags->flags_mask;
unsigned long stop = 0;
const char *flags;
char *p = outstr;
flags = sprintflags_ex("", spu_run_status_flags, status, '\0',
XLAT_STYLE_DEFAULT | SPFF_AUXSTR_MODE);
if (!flags && !(status - st))
return NULL;
if (flags)
p = xappendstr(outstr, p, "%s|", flags);
if (st & SPU_STATUS_STOPPED_BY_STOP) {
stop = status & SPU_STOP_MASK_SHIFTED;
p = xappendstr(outstr, p, "|%#lx<<SPU_STOP_STATUS_SHIFT",
stop >> SPU_STOP_STATUS_SHIFT);
}
if (status - st - stop)
p = xappendstr(outstr, p, "|%#lx", status - st - stop);
return outstr;
}
SYS_FUNC(spu_run)
{
uint32_t val;
if (entering(tcp)) {
/* fd */
printfd(tcp, tcp->u_arg[0]);
/* [in, out] uint32_t *npc */
tprint_arg_next();
if (printnum_int(tcp, tcp->u_arg[1], "%#x"))
set_tcb_priv_ulong(tcp, 1);
return 0;
}
if (!syserror(tcp) && get_tcb_priv_ulong(tcp)) {
tprint_value_changed();
printnum_int(tcp, tcp->u_arg[1], "%#x");
}
/* [out] uint32_t *event */
tprint_arg_next();
if (!umove_or_printaddr(tcp, tcp->u_arg[2], &val)) {
tprint_indirect_begin();
printflags_ex(val, "SPE_EVENT_???",
xlat_verbose(xlat_verbosity) == XLAT_STYLE_RAW
? XLAT_STYLE_RAW : XLAT_STYLE_VERBOSE,
spu_run_events, NULL);
tprint_indirect_end();
}
if (!syserror(tcp))
tcp->auxstr = sprint_spu_status(tcp->u_rval);
return RVAL_HEX | RVAL_STR;
}
#endif /* POWERPC || POWERPC64 */
|
