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// Copyright (c) 2009-2011, Tor M. Aamodt, Wilson W.L. Fung
// The University of British Columbia
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution. Neither the name of
// The University of British Columbia nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#ifndef memory_h_INCLUDED
#define memory_h_INCLUDED
#include "../abstract_hardware_model.h"
#include "../tr1_hash_map.h"
#define mem_map tr1_hash_map
#if tr1_hash_map_ismap == 1
#define MEM_MAP_RESIZE(hash_size)
#else
#define MEM_MAP_RESIZE(hash_size) (m_data.rehash(hash_size))
#endif
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <map>
#include <string>
typedef address_type mem_addr_t;
#define MEM_BLOCK_SIZE (4 * 1024)
template <unsigned BSIZE>
class mem_storage {
public:
mem_storage(const mem_storage &another) {
m_data = (unsigned char *)calloc(1, BSIZE);
memcpy(m_data, another.m_data, BSIZE);
}
mem_storage() { m_data = (unsigned char *)calloc(1, BSIZE); }
~mem_storage() { free(m_data); }
void write(unsigned offset, size_t length, const unsigned char *data) {
assert(offset + length <= BSIZE);
memcpy(m_data + offset, data, length);
}
void read(unsigned offset, size_t length, unsigned char *data) const {
assert(offset + length <= BSIZE);
memcpy(data, m_data + offset, length);
}
void print(const char *format, FILE *fout) const {
unsigned int *i_data = (unsigned int *)m_data;
for (int d = 0; d < (BSIZE / sizeof(unsigned int)); d++) {
if (d % 1 == 0) {
fprintf(fout, "\n");
}
fprintf(fout, format, i_data[d]);
fprintf(fout, " ");
}
fprintf(fout, "\n");
fflush(fout);
}
private:
unsigned m_nbytes;
unsigned char *m_data;
};
class ptx_thread_info;
class ptx_instruction;
class memory_space {
public:
virtual ~memory_space() {}
virtual void write(mem_addr_t addr, size_t length, const void *data,
ptx_thread_info *thd, const ptx_instruction *pI) = 0;
virtual void write_only(mem_addr_t index, mem_addr_t offset, size_t length,
const void *data) = 0;
virtual void read(mem_addr_t addr, size_t length, void *data) const = 0;
virtual void print(const char *format, FILE *fout) const = 0;
virtual void set_watch(addr_t addr, unsigned watchpoint) = 0;
};
template <unsigned BSIZE>
class memory_space_impl : public memory_space {
public:
memory_space_impl(std::string name, unsigned hash_size);
virtual void write(mem_addr_t addr, size_t length, const void *data,
ptx_thread_info *thd, const ptx_instruction *pI);
virtual void write_only(mem_addr_t index, mem_addr_t offset, size_t length,
const void *data);
virtual void read(mem_addr_t addr, size_t length, void *data) const;
virtual void print(const char *format, FILE *fout) const;
virtual void set_watch(addr_t addr, unsigned watchpoint);
private:
void read_single_block(mem_addr_t blk_idx, mem_addr_t addr, size_t length,
void *data) const;
std::string m_name;
unsigned m_log2_block_size;
typedef mem_map<mem_addr_t, mem_storage<BSIZE> > map_t;
map_t m_data;
std::map<unsigned, mem_addr_t> m_watchpoints;
};
#endif
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