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/*******************************************************************************
* Copyright (C) 2018 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to use this Software with Cadence processor cores only and
* not with any other processors and platforms, 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.
******************************************************************************/
/*******************************************************************************
* xf-sys.h
*
* Definitions for Xtensa SHMEM configuration
*
*******************************************************************************/
#ifndef __XF_H
#error "xf-sys.h mustn't be included directly"
#endif
/*******************************************************************************
* Standard system includes
******************************************************************************/
/* ...from directory ./board-BOARDNAME */
#include "xf-board.h"
/*******************************************************************************
* Global abstractions
******************************************************************************/
/* ...prevent instructions reordering */
#define barrier() \
__asm__ __volatile__("": : : "memory")
/* ...memory barrier */
#define XF_PROXY_BARRIER() \
__asm__ __volatile__("memw": : : "memory")
/* ...memory invalidation */
#define XF_PROXY_INVALIDATE(buf, length) \
({ if ((length)) { xthal_dcache_region_invalidate((buf), (length)); barrier(); } buf; })
/* ...memory flushing */
#define XF_PROXY_FLUSH(buf, length) \
({ if ((length)) { barrier(); xthal_dcache_region_writeback((buf), (length)); XF_PROXY_BARRIER(); } buf; })
/*******************************************************************************
* Core-specific data accessor
******************************************************************************/
/* ...per-core execution data */
extern xf_core_data_t xf_core_data[XF_CFG_CORES_NUM];
/* ...local memory accessor */
#define XF_CORE_DATA(core) (&xf_core_data[core])
/*******************************************************************************
* Inter-processor communication and shared memory interface definition
******************************************************************************/
#include "xf-ipc.h"
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