LXR linux/arch/powerpc/include/asm/emulated

   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
  15struct ppc_emulated_entry {
  16        const char *name;
  17        atomic_t val;
  18};
  19
  20extern 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
  53extern u32 ppc_warn_emulated;
  54
  55extern 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 */
  85