arch/powerpc/include/asm/emulated_ops.h

   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 #elif defined(CONFIG_8XX_MINIMAL_FPEMU)
  50         struct ppc_emulated_entry 8xx;
  51 #endif
  52 #ifdef CONFIG_VSX
  53         struct ppc_emulated_entry vsx;
  54 #endif
  55 #ifdef CONFIG_PPC64
  56         struct ppc_emulated_entry mfdscr;
  57         struct ppc_emulated_entry mtdscr;
  58 #endif
  59 } ppc_emulated;
  60
  61 extern u32 ppc_warn_emulated;
  62
  63 extern 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 */