1/* 2 * Performance event support - Freescale embedded specific definitions. 3 * 4 * Copyright 2008-2009 Paul Mackerras, IBM Corporation. 5 * Copyright 2010 Freescale Semiconductor, Inc. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 10 * 2 of the License, or (at your option) any later version. 11 */ 12 13#include <linux/types.h> 14#include <asm/hw_irq.h> 15 16#define MAX_HWEVENTS 4 17 18/* event flags */ 19#define FSL_EMB_EVENT_VALID 1 20#define FSL_EMB_EVENT_RESTRICTED 2 21 22/* upper half of event flags is PMLCb */ 23#define FSL_EMB_EVENT_THRESHMUL 0x0000070000000000ULL 24#define FSL_EMB_EVENT_THRESH 0x0000003f00000000ULL 25 26struct fsl_emb_pmu { 27 const char *name; 28 int n_counter; /* total number of counters */ 29 30 /* 31 * The number of contiguous counters starting at zero that 32 * can hold restricted events, or zero if there are no 33 * restricted events. 34 * 35 * This isn't a very flexible method of expressing constraints, 36 * but it's very simple and is adequate for existing chips. 37 */ 38 int n_restricted; 39 40 /* Returns event flags and PMLCb (FSL_EMB_EVENT_*) */ 41 u64 (*xlate_event)(u64 event_id); 42 43 int n_generic; 44 int *generic_events; 45 int (*cache_events)[PERF_COUNT_HW_CACHE_MAX] 46 [PERF_COUNT_HW_CACHE_OP_MAX] 47 [PERF_COUNT_HW_CACHE_RESULT_MAX]; 48}; 49 50int register_fsl_emb_pmu(struct fsl_emb_pmu *); 51