csr_core.h

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/* csr_core.h
 *
 * Copyright (c) 2011-2016, Lawrence Livermore National Security, LLC.
 * LLNL-CODE-645430
 *
 * Produced at Lawrence Livermore National Laboratory
 * Written by  Barry Rountree, rountree@llnl.gov
 *             Scott Walker,   walker91@llnl.gov
 *             Kathleen Shoga, shoga1@llnl.gov
 *
 * All rights reserved.
 *
 * This file is part of libmsr.
 *
 * libmsr is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * libmsr is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with libmsr. If not, see <http://www.gnu.org/licenses/>.
 *
 * This material is based upon work supported by the U.S. Department of
 * Energy's Lawrence Livermore National Laboratory. Office of Science, under
 * Award number DE-AC52-07NA27344.
 *
 */

#ifndef CSR_CORE_H_INCLUDE
#define CSR_CORE_H_INCLUDE

#include <errno.h>
#include <fcntl.h>
#include <linux/ioctl.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>

#define CSRSAFE_8086_BATCH _IOWR('a', 0x05, struct csr_batch_array)
#define CSR_FILENAME_SIZE 128
#define CSR_MODULE "/dev/cpu/csr_safe"

enum csr_data_type_e {
    CSR_IMC_CTRS,
    CSR_IMC_EVTS,
    CSR_IMC_PMONUNITCTRL,
    CSR_IMC_PMONUNITSTAT,
    /* Currently unused */
    //CSR_IMC_MEMCTRA,
    //CSR_IMC_MEMCTRR,
    //CSR_IMC_MEMCTRW,
    //CSR_IMC_IMCCTR,
    //CSR_QPI_CTRS,
    //CSR_QPI_EVTS
};

struct csr_batch_op {
    uint8_t bus;
    uint8_t device;
    uint8_t function;
    uint8_t socket;
    uint16_t offset;
    int err;
    uint8_t isread;
    uint64_t csrdata;
    uint64_t wmask;
    uint8_t size;
};

struct csr_batch_array {
    uint32_t numops;
    struct csr_batch_op *ops;
};

int init_csr(void);

int finalize_csr(void);

int csr_batch_storage(struct csr_batch_array **batchsel,
                      const int batchnum,
                      unsigned **opssize);

int allocate_csr_batch(const int batchnum,
                       size_t bsize);

int free_csr_batch(const int batchnum);

int create_csr_batch_op(off_t csr,
                        uint8_t bus,
                        uint8_t device,
                        uint8_t function,
                        uint8_t socket,
                        uint8_t isread,
                        size_t opsize,
                        uint64_t **dest,
                        const int batchnum);

int do_csr_batch_op(const int batchnum);

#endif