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zpu_mem.h
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zpu_mem.h
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/****************************************************************************
* Copyright (c) 2020 Mike Sharkey <mike@pikeaero.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 ZPU_MEM_H
#define ZPU_MEM_H
#if defined(_CARIBOU_RTOS_)
#include <caribou/kernel/types.h>
#else
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#endif
#define ZPU_MEM_BAD 0xFEFEFEFE
#define ZPU_MEM_ATTR_RD 0x01
#define ZPU_MEM_ATTR_WR 0x02
#define ZPU_MEM_ATTR_EX 0x04
#define ZPU_MEM_ATTR_IO 0x08
typedef struct _zpu_mem_
{
const char* name;
struct _zpu_mem_* next;
void* physical_base;
uint32_t virtual_base;
uint32_t size;
uint8_t attr;
bool prot_enabled;
} zpu_mem_t;
#define zpu_mem_set_physical_base(zpu_mem,b) ((zpu_mem)->physical_base = (b))
#define zpu_mem_set_virtual_base(zpu_mem,b) ((zpu_mem)->virtual_base = (b))
#define zpu_mem_set_size(zpu_mem,s) ((zpu_mem)->size = (s))
#define zpu_mem_get_size(zpu_mem) ((zpu_mem)->size)
#define zpu_mem_set_next(zpu_mem,n) ((zpu_mem)->next = (n))
#define zpu_mem_set_name(zpu_mem,n) ((zpu_mem)->name = (n))
#define zpu_mem_get_name(zpu_mem) ((zpu_mem)->name)
#define zpu_mem_set_attr(zpu_mem,n) ((zpu_mem)->attr = (n))
#define zpu_mem_get_attr(zpu_mem) ((zpu_mem)->attr)
extern void zpu_mem_init( zpu_mem_t* zpu_mem_root,
zpu_mem_t* zpu_mem_seg,
const char* name,
void* physical_base,
uint32_t virtual_base,
uint32_t size,
uint8_t attr );
extern void zpu_mem_set_prot( zpu_mem_t* zpu_mem, bool enabled );
extern uint32_t zpu_mem_get_uint32( zpu_mem_t* zpu_mem, uint32_t va );
extern uint16_t zpu_mem_get_uint16( zpu_mem_t* zpu_mem, uint32_t va );
extern uint8_t zpu_mem_get_uint8( zpu_mem_t* zpu_mem, uint32_t va );
extern uint8_t zpu_mem_get_opcode( zpu_mem_t* zpu_mem, uint32_t va );
extern void zpu_mem_set_uint32( zpu_mem_t* zpu_mem, uint32_t va, uint32_t w );
extern void zpu_mem_set_uint16( zpu_mem_t* zpu_mem, uint32_t va, uint16_t w );
extern void zpu_mem_set_uint8( zpu_mem_t* zpu_mem, uint32_t va, uint8_t w );
/** consumer callbacks (weak bindings) */
extern void zpu_opcode_fetch_notify ( zpu_mem_t* zpu_mem, uint32_t va );
extern void zpu_segv_handler ( zpu_mem_t* zpu_mem, uint32_t va );
extern bool zpu_mem_override_get_uint32 ( zpu_mem_t* zpu_mem, uint32_t va, uint32_t* value );
extern bool zpu_mem_override_get_uint16 ( zpu_mem_t* zpu_mem, uint32_t va, uint16_t* value );
extern bool zpu_mem_override_get_uint8 ( zpu_mem_t* zpu_mem, uint32_t va, uint8_t* value );
extern bool zpu_mem_override_set_uint32 ( zpu_mem_t* zpu_mem, uint32_t va, uint32_t w );
extern bool zpu_mem_override_set_uint16 ( zpu_mem_t* zpu_mem, uint32_t va, uint16_t w );
extern bool zpu_mem_override_set_uint8 ( zpu_mem_t* zpu_mem, uint32_t va, uint8_t w );
#endif