/* * Performance event support - hardware-specific disambiguation * * For now this is a compile-time decision, but eventually it should be * runtime. This would allow multiplatform perf event support for e300 (fsl * embedded perf counters) plus server/classic, and would accommodate * devices other than the core which provide their own performance counters. * * Copyright 2010 Freescale Semiconductor, Inc. * * 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; either version * 2 of the License, or (at your option) any later version. */ #ifdef [31mCONFIG_PPC_PERF_CTRS[0m #include <asm/perf_event_server.h> #endif #ifdef [31mCONFIG_FSL_EMB_PERF_EVENT[0m #include <asm/perf_event_fsl_emb.h> #endif #ifdef [31mCONFIG_PERF_EVENTS[0m #include <asm/ptrace.h> #include <asm/reg.h> /* * Overload regs->result to specify whether we should use the MSR (result * is zero) or the SIAR (result is non zero). */ #define perf_arch_fetch_caller_regs(regs, __ip) \ do { \ (regs)->result = 0; \ (regs)->nip = __ip; \ (regs)->gpr[1] = current_stack_pointer(); \ asm volatile("mfmsr %0" : "=r" ((regs)->msr)); \ } while (0) #endif |