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1 /*
2  *  Copyright 2007 Sony Corporation
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation; version 2 of the License.
7  *
8  *  This program is distributed in the hope that it will be useful,
9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  *  GNU General Public License for more details.
12  *
13  *  You should have received a copy of the GNU General Public License
14  *  along with this program.
15  *  If not, see <http://www.gnu.org/licenses/>.
16  */
17
18 #ifndef _ASM_POWERPC_EMULATED_OPS_H
19 #define _ASM_POWERPC_EMULATED_OPS_H
20
21 #include <linux/atomic.h>
22 #include <linux/perf_event.h>
23
24
25 #ifdef CONFIG_PPC_EMULATED_STATS
26
27 struct ppc_emulated_entry {
28         const char *name;
29         atomic_t val;
30 };
31
32 extern struct ppc_emulated {
33 #ifdef CONFIG_ALTIVEC
34         struct ppc_emulated_entry altivec;
35 #endif
36         struct ppc_emulated_entry dcba;
37         struct ppc_emulated_entry dcbz;
38         struct ppc_emulated_entry fp_pair;
39         struct ppc_emulated_entry isel;
40         struct ppc_emulated_entry mcrxr;
41         struct ppc_emulated_entry mfpvr;
42         struct ppc_emulated_entry multiple;
43         struct ppc_emulated_entry popcntb;
44         struct ppc_emulated_entry spe;
45         struct ppc_emulated_entry string;
46         struct ppc_emulated_entry unaligned;
47 #ifdef CONFIG_MATH_EMULATION
48         struct ppc_emulated_entry math;
49 #endif
50 #ifdef CONFIG_VSX
51         struct ppc_emulated_entry vsx;
52 #endif
53 #ifdef CONFIG_PPC64
54         struct ppc_emulated_entry mfdscr;
55         struct ppc_emulated_entry mtdscr;
56 #endif
57 } ppc_emulated;
58
59 extern u32 ppc_warn_emulated;
60
61 extern void ppc_warn_emulated_print(const char *type);
62
63 #define __PPC_WARN_EMULATED(type)                                        \
64         do {                                                             \
65                 atomic_inc(&ppc_emulated.type.val);                      \
66                 if (ppc_warn_emulated)                                   \
67                         ppc_warn_emulated_print(ppc_emulated.type.name); \
68         } while (0)
69
70 #else /* !CONFIG_PPC_EMULATED_STATS */
71
72 #define __PPC_WARN_EMULATED(type)       do { } while (0)
73
74 #endif /* !CONFIG_PPC_EMULATED_STATS */
75
76 #define PPC_WARN_EMULATED(type, regs)                                   \
77         do {                                                            \
78                 perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,           \
79                         1, regs, 0);                                    \
80                 __PPC_WARN_EMULATED(type);                              \
81         } while (0)
82
83 #define PPC_WARN_ALIGNMENT(type, regs)                                  \
84         do {                                                            \
85                 perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,           \
86                         1, regs, regs->dar);                            \
87                 __PPC_WARN_EMULATED(type);                              \
88         } while (0)
89
90 #endif /* _ASM_POWERPC_EMULATED_OPS_H */