arch/blackfin/oprofile/op_blackfin.h

   1 /*
   2  * File:         arch/blackfin/oprofile/op_blackfin.h
   3  * Based on:
   4  * Author:       Anton Blanchard <anton@au.ibm.com>
   5  *
   6  * Created:
   7  * Description:
   8  *
   9  * Modified:
  10  *               Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
  11  *               Copyright 2004-2006 Analog Devices Inc.
  12  *
  13  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, see the file COPYING, or write
  27  * to the Free Software Foundation, Inc.,
  28  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  29  */
  30
  31 #ifndef OP_BLACKFIN_H
  32 #define OP_BLACKFIN_H 1
  33
  34 #define OP_MAX_COUNTER 2
  35
  36 #include <asm/blackfin.h>
  37
  38 /* Per-counter configuration as set via oprofilefs.  */
  39 struct op_counter_config {
  40         unsigned long valid;
  41         unsigned long enabled;
  42         unsigned long event;
  43         unsigned long count;
  44         unsigned long kernel;
  45         unsigned long user;
  46         unsigned long unit_mask;
  47 };
  48
  49 /* System-wide configuration as set via oprofilefs.  */
  50 struct op_system_config {
  51         unsigned long enable_kernel;
  52         unsigned long enable_user;
  53 };
  54
  55 /* Per-arch configuration */
  56 struct op_bfin533_model {
  57         int (*reg_setup) (struct op_counter_config *);
  58         int (*start) (struct op_counter_config *);
  59         void (*stop) (void);
  60         int num_counters;
  61         char *name;
  62 };
  63
  64 extern struct op_bfin533_model op_model_bfin533;
  65
  66 static inline unsigned int ctr_read(void)
  67 {
  68         unsigned int tmp;
  69
  70         tmp = bfin_read_PFCTL();
  71         CSYNC();
  72
  73         return tmp;
  74 }
  75
  76 static inline void ctr_write(unsigned int val)
  77 {
  78         bfin_write_PFCTL(val);
  79         CSYNC();
  80 }
  81
  82 static inline void count_read(unsigned int *count)
  83 {
  84         count[0] = bfin_read_PFCNTR0();
  85         count[1] = bfin_read_PFCNTR1();
  86         CSYNC();
  87 }
  88
  89 static inline void count_write(unsigned int *count)
  90 {
  91         bfin_write_PFCNTR0(count[0]);
  92         bfin_write_PFCNTR1(count[1]);
  93         CSYNC();
  94 }
  95
  96 extern int pm_overflow_handler(int irq, struct pt_regs *regs);
  97
  98 #endif