| /* |
| * 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> |
| |
| /* |
| * 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 |
