include/asm-powerpc/oprofile_impl.h

   1 /*
   2  * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
   3  *
   4  * Based on alpha version.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #ifndef _ASM_POWERPC_OPROFILE_IMPL_H
  13 #define _ASM_POWERPC_OPROFILE_IMPL_H
  14 #ifdef __KERNEL__
  15
  16 #define OP_MAX_COUNTER 8
  17
  18 /* Per-counter configuration as set via oprofilefs.  */
  19 struct op_counter_config {
  20         unsigned long enabled;
  21         unsigned long event;
  22         unsigned long count;
  23         /* Classic doesn't support per-counter user/kernel selection */
  24         unsigned long kernel;
  25         unsigned long user;
  26         unsigned long unit_mask;
  27 };
  28
  29 /* System-wide configuration as set via oprofilefs.  */
  30 struct op_system_config {
  31 #ifdef CONFIG_PPC64
  32         unsigned long mmcr0;
  33         unsigned long mmcr1;
  34         unsigned long mmcra;
  35 #endif
  36         unsigned long enable_kernel;
  37         unsigned long enable_user;
  38 };
  39
  40 /* Per-arch configuration */
  41 struct op_powerpc_model {
  42         void (*reg_setup) (struct op_counter_config *,
  43                            struct op_system_config *,
  44                            int num_counters);
  45         void (*cpu_setup) (struct op_counter_config *);
  46         void (*start) (struct op_counter_config *);
  47         void (*global_start) (struct op_counter_config *);
  48         void (*stop) (void);
  49         void (*global_stop) (void);
  50         void (*handle_interrupt) (struct pt_regs *,
  51                                   struct op_counter_config *);
  52         int num_counters;
  53 };
  54
  55 extern struct op_powerpc_model op_model_fsl_booke;
  56 extern struct op_powerpc_model op_model_rs64;
  57 extern struct op_powerpc_model op_model_power4;
  58 extern struct op_powerpc_model op_model_7450;
  59 extern struct op_powerpc_model op_model_cell;
  60
  61 #ifndef CONFIG_FSL_BOOKE
  62
  63 /* All the classic PPC parts use these */
  64 static inline unsigned int ctr_read(unsigned int i)
  65 {
  66         switch(i) {
  67         case 0:
  68                 return mfspr(SPRN_PMC1);
  69         case 1:
  70                 return mfspr(SPRN_PMC2);
  71         case 2:
  72                 return mfspr(SPRN_PMC3);
  73         case 3:
  74                 return mfspr(SPRN_PMC4);
  75         case 4:
  76                 return mfspr(SPRN_PMC5);
  77         case 5:
  78                 return mfspr(SPRN_PMC6);
  79
  80 /* No PPC32 chip has more than 6 so far */
  81 #ifdef CONFIG_PPC64
  82         case 6:
  83                 return mfspr(SPRN_PMC7);
  84         case 7:
  85                 return mfspr(SPRN_PMC8);
  86 #endif
  87         default:
  88                 return 0;
  89         }
  90 }
  91
  92 static inline void ctr_write(unsigned int i, unsigned int val)
  93 {
  94         switch(i) {
  95         case 0:
  96                 mtspr(SPRN_PMC1, val);
  97                 break;
  98         case 1:
  99                 mtspr(SPRN_PMC2, val);
 100                 break;
 101         case 2:
 102                 mtspr(SPRN_PMC3, val);
 103                 break;
 104         case 3:
 105                 mtspr(SPRN_PMC4, val);
 106                 break;
 107         case 4:
 108                 mtspr(SPRN_PMC5, val);
 109                 break;
 110         case 5:
 111                 mtspr(SPRN_PMC6, val);
 112                 break;
 113
 114 /* No PPC32 chip has more than 6, yet */
 115 #ifdef CONFIG_PPC64
 116         case 6:
 117                 mtspr(SPRN_PMC7, val);
 118                 break;
 119         case 7:
 120                 mtspr(SPRN_PMC8, val);
 121                 break;
 122 #endif
 123         default:
 124                 break;
 125         }
 126 }
 127 #else /* CONFIG_FSL_BOOKE */
 128 static inline u32 get_pmlca(int ctr)
 129 {
 130         u32 pmlca;
 131
 132         switch (ctr) {
 133                 case 0:
 134                         pmlca = mfpmr(PMRN_PMLCA0);
 135                         break;
 136                 case 1:
 137                         pmlca = mfpmr(PMRN_PMLCA1);
 138                         break;
 139                 case 2:
 140                         pmlca = mfpmr(PMRN_PMLCA2);
 141                         break;
 142                 case 3:
 143                         pmlca = mfpmr(PMRN_PMLCA3);
 144                         break;
 145                 default:
 146                         panic("Bad ctr number\n");
 147         }
 148
 149         return pmlca;
 150 }
 151
 152 static inline void set_pmlca(int ctr, u32 pmlca)
 153 {
 154         switch (ctr) {
 155                 case 0:
 156                         mtpmr(PMRN_PMLCA0, pmlca);
 157                         break;
 158                 case 1:
 159                         mtpmr(PMRN_PMLCA1, pmlca);
 160                         break;
 161                 case 2:
 162                         mtpmr(PMRN_PMLCA2, pmlca);
 163                         break;
 164                 case 3:
 165                         mtpmr(PMRN_PMLCA3, pmlca);
 166                         break;
 167                 default:
 168                         panic("Bad ctr number\n");
 169         }
 170 }
 171
 172 static inline unsigned int ctr_read(unsigned int i)
 173 {
 174         switch(i) {
 175                 case 0:
 176                         return mfpmr(PMRN_PMC0);
 177                 case 1:
 178                         return mfpmr(PMRN_PMC1);
 179                 case 2:
 180                         return mfpmr(PMRN_PMC2);
 181                 case 3:
 182                         return mfpmr(PMRN_PMC3);
 183                 default:
 184                         return 0;
 185         }
 186 }
 187
 188 static inline void ctr_write(unsigned int i, unsigned int val)
 189 {
 190         switch(i) {
 191                 case 0:
 192                         mtpmr(PMRN_PMC0, val);
 193                         break;
 194                 case 1:
 195                         mtpmr(PMRN_PMC1, val);
 196                         break;
 197                 case 2:
 198                         mtpmr(PMRN_PMC2, val);
 199                         break;
 200                 case 3:
 201                         mtpmr(PMRN_PMC3, val);
 202                         break;
 203                 default:
 204                         break;
 205         }
 206 }
 207
 208
 209 #endif /* CONFIG_FSL_BOOKE */
 210
 211
 212 extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
 213
 214 #endif /* __KERNEL__ */
 215 #endif /* _ASM_POWERPC_OPROFILE_IMPL_H */