processor.h

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/* -*- C -*- */
/*
 * Copyright (c) 2012-2020 Seagate Technology LLC and/or its Affiliates
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For any questions about this software or licensing,
 * please email opensource@seagate.com or cortx-questions@seagate.com.
 *
 */


#pragma once

#ifndef __MOTR_LIB_PROCESSOR_H__
#define __MOTR_LIB_PROCESSOR_H__

#include "lib/bitmap.h"
#include "lib/types.h"

#define M0_PROCESSORS_INVALID_ID        ((uint32_t)-1)

typedef uint32_t m0_processor_nr_t;

M0_INTERNAL int m0_processors_init(void);

M0_INTERNAL void m0_processors_fini(void);

M0_INTERNAL m0_processor_nr_t m0_processor_nr_max(void);

M0_INTERNAL void m0_processors_possible(struct m0_bitmap *map);

M0_INTERNAL void m0_processors_available(struct m0_bitmap *map);

M0_INTERNAL void m0_processors_online(struct m0_bitmap *map);

M0_INTERNAL m0_processor_nr_t m0_processor_id_get(void);

struct m0_processor_descr {
        m0_processor_nr_t pd_id;
        uint32_t          pd_numa_node;
        uint32_t          pd_l1;
        uint32_t          pd_l2;
        size_t            pd_l1_sz;
        size_t            pd_l2_sz;
        uint32_t          pd_pipeline;
};

M0_INTERNAL int m0_processor_describe(m0_processor_nr_t id,
                                      struct m0_processor_descr *pd);

M0_INTERNAL bool m0_processor_is_vm(void);

/* __MOTR_LIB_PROCESSOR_H__ */
#endif

/*
 *  Local variables:
 *  c-indentation-style: "K&R"
 *  c-basic-offset: 8
 *  tab-width: 8
 *  fill-column: 80
 *  scroll-step: 1
 *  End:
 */