cpu.h

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/*
 * Copyright (c) 2017, Xilinx Inc. and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
/*
 * @file        cpu.h
 * @brief       CPU specific primatives on microblaze platform.
 */
 
#ifndef __METAL_MICROBLAZE__H__
#define __METAL_MICROBLAZE__H__
 
#include <stdint.h>
#include <metal/atomic.h>
 
#define metal_cpu_yield()
 
static inline void metal_processor_io_write64(void *ptr, uint64_t value,
                                              memory_order order)
{
        void *tmp = &value;
 
        atomic_store_explicit((atomic_ulong *)ptr, *((atomic_ulong *)tmp), order);
        tmp += sizeof(atomic_ulong);
        ptr += sizeof(atomic_ulong);
        atomic_store_explicit((atomic_ulong *)ptr, *((atomic_ulong *)tmp), order);
}
 
static inline uint64_t metal_processor_io_read64(void *ptr, memory_order order)
{
        uint64_t long_ret;
        void *tmp = &long_ret;
 
        *((atomic_ulong *)tmp) = atomic_load_explicit((atomic_ulong *)ptr, order);
        tmp += sizeof(atomic_ulong);
        ptr += sizeof(atomic_ulong);
        *((atomic_ulong *)tmp) = atomic_load_explicit((atomic_ulong *)ptr, order);
 
        return long_ret;
}
 
#endif /* __METAL_MICROBLAZE__H__ */