pfmlib_gen_mips64.h

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/*
 * Generic MIPS64 PMU specific types and definitions
 *
 * Contributed by Philip Mucci <mucci@cs.utk.edu> based on code from
 * Copyright (c) 2005-2006 Hewlett-Packard Development Company, L.P.
 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
#ifndef __PFMLIB_GEN_MIPS64_H__
#define __PFMLIB_GEN_MIPS64_H__
 
#include <endian.h> /* MIPS are bi-endian */
 
#include <perfmon/pfmlib.h>
/*
 * privilege level mask usage for MIPS:
 *
 * PFM_PLM0 = KERNEL
 * PFM_PLM1 = SUPERVISOR
 * PFM_PLM2 = INTERRUPT
 * PFM_PLM3 = USER
 */
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define PMU_GEN_MIPS64_NUM_COUNTERS     4   /* total numbers of EvtSel/EvtCtr */
#define PMU_GEN_MIPS64_COUNTER_WIDTH        32  /* hardware counter bit width   */
/*
 * This structure provides a detailed way to setup a PMC register.
 * Once value is loaded, it must be copied (via pmu_reg) to the
 * perfmon_req_t and passed to the kernel via perfmonctl().
 *
 * It needs to be adjusted based on endianess
 */
#if __BYTE_ORDER == __LITTLE_ENDIAN
 
typedef union {
    uint64_t    val;                /* complete register value */
    struct {
            unsigned long sel_exl:1;        /* int level */
        unsigned long sel_os:1;         /* system level */
        unsigned long sel_sup:1;        /* supervisor level */
        unsigned long sel_usr:1;        /* user level */
            unsigned long sel_int:1;        /* enable intr */
        unsigned long sel_event_mask:5;     /* event mask */
        unsigned long sel_res1:22;      /* reserved */
        unsigned long sel_res2:32;      /* reserved */
    } perfsel;
} pfm_gen_mips64_sel_reg_t;
 
#elif __BYTE_ORDER == __BIG_ENDIAN
 
typedef union {
    uint64_t    val;                /* complete register value */
    struct {
        unsigned long sel_res2:32;      /* reserved */
        unsigned long sel_res1:22;      /* reserved */
        unsigned long sel_event_mask:5;     /* event mask */
            unsigned long sel_int:1;        /* enable intr */
        unsigned long sel_usr:1;        /* user level */
        unsigned long sel_sup:1;        /* supervisor level */
        unsigned long sel_os:1;         /* system level */
            unsigned long sel_exl:1;        /* int level */
    } perfsel;
} pfm_gen_mips64_sel_reg_t;
 
#else
#error "cannot determine endianess"
#endif
 
typedef union {
    uint64_t val;   /* counter value */
    /* counting perfctr register */
    struct {
        unsigned long ctr_count:32; /* 32-bit hardware counter  */
    } perfctr;
} pfm_gen_mips64_ctr_reg_t;
 
typedef struct {
    unsigned int    cnt_mask;   /* threshold ([4-255] are reserved) */
    unsigned int    flags;      /* counter specific flag */
} pfmlib_gen_mips64_counter_t;
 
/*
 * MIPS64 specific parameters for the library
 */
typedef struct {
    pfmlib_gen_mips64_counter_t pfp_gen_mips64_counters[PMU_GEN_MIPS64_NUM_COUNTERS];   /* extended counter features */
    uint64_t            reserved[4];        /* for future use */
} pfmlib_gen_mips64_input_param_t;
 
typedef struct {
    uint64_t    reserved[8];        /* for future use */
} pfmlib_gen_mips64_output_param_t;
 
#ifdef __cplusplus /* extern C */
}
#endif
 
#endif /* __PFMLIB_GEN_MIPS64_H__ */