arch/powerpc/include/asm/pmc.h

   1 /*
   2  * pmc.h
   3  * Copyright (C) 2004  David Gibson, IBM Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19 #ifndef _POWERPC_PMC_H
  20 #define _POWERPC_PMC_H
  21 #ifdef __KERNEL__
  22
  23 #include <asm/ptrace.h>
  24
  25 typedef void (*perf_irq_t)(struct pt_regs *);
  26 extern perf_irq_t perf_irq;
  27
  28 int reserve_pmc_hardware(perf_irq_t new_perf_irq);
  29 void release_pmc_hardware(void);
  30 void ppc_enable_pmcs(void);
  31
  32 #ifdef CONFIG_PPC_BOOK3S_64
  33 #include <asm/lppaca.h>
  34
  35 static inline void ppc_set_pmu_inuse(int inuse)
  36 {
  37         get_lppaca()->pmcregs_in_use = inuse;
  38 }
  39
  40 extern void power4_enable_pmcs(void);
  41
  42 #else /* CONFIG_PPC64 */
  43
  44 static inline void ppc_set_pmu_inuse(int inuse) { }
  45
  46 #endif
  47
  48 #endif /* __KERNEL__ */
  49 #endif /* _POWERPC_PMC_H */