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
27struct ppc_emulated_entry {
28	const char *name;
29	atomic_t val;
30};
31
32extern 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#endif
59} ppc_emulated;
60
61extern u32 ppc_warn_emulated;
62
63extern void ppc_warn_emulated_print(const char *type);
64
65#define __PPC_WARN_EMULATED(type)					 \
66	do {								 \
67		atomic_inc(&ppc_emulated.type.val);			 \
68		if (ppc_warn_emulated)					 \
69			ppc_warn_emulated_print(ppc_emulated.type.name); \
70	} while (0)
71
72#else /* !CONFIG_PPC_EMULATED_STATS */
73
74#define __PPC_WARN_EMULATED(type)	do { } while (0)
75
76#endif /* !CONFIG_PPC_EMULATED_STATS */
77
78#define PPC_WARN_EMULATED(type, regs)					\
79	do {								\
80		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
81			1, regs, 0);					\
82		__PPC_WARN_EMULATED(type);				\
83	} while (0)
84
85#define PPC_WARN_ALIGNMENT(type, regs)					\
86	do {								\
87		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
88			1, regs, regs->dar);				\
89		__PPC_WARN_EMULATED(type);				\
90	} while (0)
91
92#endif /* _ASM_POWERPC_EMULATED_OPS_H */
93