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 sync;
47 	struct ppc_emulated_entry unaligned;
48 #ifdef CONFIG_MATH_EMULATION
49 	struct ppc_emulated_entry math;
50 #endif
51 #ifdef CONFIG_VSX
52 	struct ppc_emulated_entry vsx;
53 #endif
54 #ifdef CONFIG_PPC64
55 	struct ppc_emulated_entry mfdscr;
56 	struct ppc_emulated_entry mtdscr;
57 	struct ppc_emulated_entry lq_stq;
58 	struct ppc_emulated_entry lxvw4x;
59 	struct ppc_emulated_entry lxvh8x;
60 	struct ppc_emulated_entry lxvd2x;
61 	struct ppc_emulated_entry lxvb16x;
62 #endif
63 } ppc_emulated;
64 
65 extern u32 ppc_warn_emulated;
66 
67 extern void ppc_warn_emulated_print(const char *type);
68 
69 #define __PPC_WARN_EMULATED(type)					 \
70 	do {								 \
71 		atomic_inc(&ppc_emulated.type.val);			 \
72 		if (ppc_warn_emulated)					 \
73 			ppc_warn_emulated_print(ppc_emulated.type.name); \
74 	} while (0)
75 
76 #else /* !CONFIG_PPC_EMULATED_STATS */
77 
78 #define __PPC_WARN_EMULATED(type)	do { } while (0)
79 
80 #endif /* !CONFIG_PPC_EMULATED_STATS */
81 
82 #define PPC_WARN_EMULATED(type, regs)					\
83 	do {								\
84 		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
85 			1, regs, 0);					\
86 		__PPC_WARN_EMULATED(type);				\
87 	} while (0)
88 
89 #define PPC_WARN_ALIGNMENT(type, regs)					\
90 	do {								\
91 		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
92 			1, regs, regs->dar);				\
93 		__PPC_WARN_EMULATED(type);				\
94 	} while (0)
95 
96 #endif /* _ASM_POWERPC_EMULATED_OPS_H */
97