|  | /* | 
|  | * 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 CONFIG_PPC_PERF_CTRS | 
|  | #include <asm/perf_event_server.h> | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_FSL_EMB_PERF_EVENT | 
|  | #include <asm/perf_event_fsl_emb.h> | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_PERF_EVENTS | 
|  | #include <asm/ptrace.h> | 
|  | #include <asm/reg.h> | 
|  |  | 
|  | #define perf_arch_fetch_caller_regs(regs, __ip)			\ | 
|  | do {							\ | 
|  | (regs)->nip = __ip;				\ | 
|  | (regs)->gpr[1] = *(unsigned long *)__get_SP();	\ | 
|  | asm volatile("mfmsr %0" : "=r" ((regs)->msr));	\ | 
|  | } while (0) | 
|  | #endif |