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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/emulated_ops.h 2.44 KB
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  /*
   *  Copyright 2007 Sony Corporation
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; version 2 of the License.
   *
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *  along with this program.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  
  #ifndef _ASM_POWERPC_EMULATED_OPS_H
  #define _ASM_POWERPC_EMULATED_OPS_H
  
  #include <linux/atomic.h>
  #include <linux/perf_event.h>
  
  
  #ifdef CONFIG_PPC_EMULATED_STATS
  
  struct ppc_emulated_entry {
  	const char *name;
  	atomic_t val;
  };
  
  extern struct ppc_emulated {
  #ifdef CONFIG_ALTIVEC
  	struct ppc_emulated_entry altivec;
  #endif
  	struct ppc_emulated_entry dcba;
  	struct ppc_emulated_entry dcbz;
  	struct ppc_emulated_entry fp_pair;
  	struct ppc_emulated_entry isel;
  	struct ppc_emulated_entry mcrxr;
  	struct ppc_emulated_entry mfpvr;
  	struct ppc_emulated_entry multiple;
  	struct ppc_emulated_entry popcntb;
  	struct ppc_emulated_entry spe;
  	struct ppc_emulated_entry string;
  	struct ppc_emulated_entry sync;
  	struct ppc_emulated_entry unaligned;
  #ifdef CONFIG_MATH_EMULATION
  	struct ppc_emulated_entry math;
  #endif
  #ifdef CONFIG_VSX
  	struct ppc_emulated_entry vsx;
  #endif
  #ifdef CONFIG_PPC64
  	struct ppc_emulated_entry mfdscr;
  	struct ppc_emulated_entry mtdscr;
  	struct ppc_emulated_entry lq_stq;
  #endif
  } ppc_emulated;
  
  extern u32 ppc_warn_emulated;
  
  extern void ppc_warn_emulated_print(const char *type);
  
  #define __PPC_WARN_EMULATED(type)					 \
  	do {								 \
  		atomic_inc(&ppc_emulated.type.val);			 \
  		if (ppc_warn_emulated)					 \
  			ppc_warn_emulated_print(ppc_emulated.type.name); \
  	} while (0)
  
  #else /* !CONFIG_PPC_EMULATED_STATS */
  
  #define __PPC_WARN_EMULATED(type)	do { } while (0)
  
  #endif /* !CONFIG_PPC_EMULATED_STATS */
  
  #define PPC_WARN_EMULATED(type, regs)					\
  	do {								\
  		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
  			1, regs, 0);					\
  		__PPC_WARN_EMULATED(type);				\
  	} while (0)
  
  #define PPC_WARN_ALIGNMENT(type, regs)					\
  	do {								\
  		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
  			1, regs, regs->dar);				\
  		__PPC_WARN_EMULATED(type);				\
  	} while (0)
  
  #endif /* _ASM_POWERPC_EMULATED_OPS_H */