arch/powerpc/include/asm/emulated_ops.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  Copyright 2007 Sony Corporation
   4  */
   5
   6 #ifndef _ASM_POWERPC_EMULATED_OPS_H
   7 #define _ASM_POWERPC_EMULATED_OPS_H
   8
   9 #include <linux/atomic.h>
  10 #include <linux/perf_event.h>
  11
  12
  13 #ifdef CONFIG_PPC_EMULATED_STATS
  14
  15 struct ppc_emulated_entry {
  16         const char *name;
  17         atomic_t val;
  18 };
  19
  20 extern struct ppc_emulated {
  21 #ifdef CONFIG_ALTIVEC
  22         struct ppc_emulated_entry altivec;
  23 #endif
  24         struct ppc_emulated_entry dcba;
  25         struct ppc_emulated_entry dcbz;
  26         struct ppc_emulated_entry fp_pair;
  27         struct ppc_emulated_entry isel;
  28         struct ppc_emulated_entry mcrxr;
  29         struct ppc_emulated_entry mfpvr;
  30         struct ppc_emulated_entry multiple;
  31         struct ppc_emulated_entry popcntb;
  32         struct ppc_emulated_entry spe;
  33         struct ppc_emulated_entry string;
  34         struct ppc_emulated_entry sync;
  35         struct ppc_emulated_entry unaligned;
  36 #ifdef CONFIG_MATH_EMULATION
  37         struct ppc_emulated_entry math;
  38 #endif
  39 #ifdef CONFIG_VSX
  40         struct ppc_emulated_entry vsx;
  41 #endif
  42 #ifdef CONFIG_PPC64
  43         struct ppc_emulated_entry mfdscr;
  44         struct ppc_emulated_entry mtdscr;
  45         struct ppc_emulated_entry lq_stq;
  46         struct ppc_emulated_entry lxvw4x;
  47         struct ppc_emulated_entry lxvh8x;
  48         struct ppc_emulated_entry lxvd2x;
  49         struct ppc_emulated_entry lxvb16x;
  50 #endif
  51 } ppc_emulated;
  52
  53 extern u32 ppc_warn_emulated;
  54
  55 extern void ppc_warn_emulated_print(const char *type);
  56
  57 #define __PPC_WARN_EMULATED(type)                                        \
  58         do {                                                             \
  59                 atomic_inc(&ppc_emulated.type.val);                      \
  60                 if (ppc_warn_emulated)                                   \
  61                         ppc_warn_emulated_print(ppc_emulated.type.name); \
  62         } while (0)
  63
  64 #else /* !CONFIG_PPC_EMULATED_STATS */
  65
  66 #define __PPC_WARN_EMULATED(type)       do { } while (0)
  67
  68 #endif /* !CONFIG_PPC_EMULATED_STATS */
  69
  70 #define PPC_WARN_EMULATED(type, regs)                                   \
  71         do {                                                            \
  72                 perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,           \
  73                         1, regs, 0);                                    \
  74                 __PPC_WARN_EMULATED(type);                              \
  75         } while (0)
  76
  77 #define PPC_WARN_ALIGNMENT(type, regs)                                  \
  78         do {                                                            \
  79                 perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,           \
  80                         1, regs, regs->dar);                            \
  81                 __PPC_WARN_EMULATED(type);                              \
  82         } while (0)
  83
  84 #endif /* _ASM_POWERPC_EMULATED_OPS_H */