105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
#include "htif_phy.h"
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#include "mm.h"
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#include "mm_dramsim2.h"
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#include <DirectC.h>
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htif_phy_t* htif_phy = NULL;
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mm_t* mm = NULL;
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extern "C" {
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void memory_tick(
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vc_handle mem_req_val,
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vc_handle mem_req_rdy,
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vc_handle mem_req_store,
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vc_handle mem_req_addr,
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vc_handle mem_req_tag,
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vc_handle mem_req_data_val,
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vc_handle mem_req_data_rdy,
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vc_handle mem_req_data_bits,
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vc_handle mem_resp_val,
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vc_handle mem_resp_tag,
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vc_handle mem_resp_data)
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{
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uint32_t req_data[MM_WORD_SIZE*REFILL_COUNT/sizeof(uint32_t)];
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for (size_t i = 0; i < MM_WORD_SIZE*REFILL_COUNT/sizeof(uint32_t); i++)
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req_data[i] = vc_4stVectorRef(mem_req_data_bits)[i].d;
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vc_putScalar(mem_req_rdy, mm->req_cmd_ready());
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vc_putScalar(mem_req_data_rdy, mm->req_data_ready());
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vc_putScalar(mem_resp_val, mm->resp_valid());
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vec32 d[MM_WORD_SIZE*REFILL_COUNT/sizeof(uint32_t)];
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d[0].c = 0;
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d[0].d = mm->resp_tag();
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vc_put4stVector(mem_resp_tag, d);
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for (size_t i = 0; i < MM_WORD_SIZE*REFILL_COUNT/sizeof(uint32_t); i++)
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{
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d[i].c = 0;
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d[i].d = ((uint32_t*)mm->resp_data())[i];
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}
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vc_put4stVector(mem_resp_data, d);
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mm->tick
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(
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vc_getScalar(mem_req_val),
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vc_getScalar(mem_req_store),
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vc_4stVectorRef(mem_req_addr)->d,
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vc_4stVectorRef(mem_req_tag)->d,
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vc_getScalar(mem_req_data_val),
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req_data
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);
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}
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void htif_init
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(
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vc_handle fromhost,
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vc_handle tohost,
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vc_handle width,
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vc_handle loadmem,
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vc_handle dramsim
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)
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{
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mm = vc_getScalar(dramsim) ? (mm_t*)(new mm_dramsim2_t) : (mm_t*)(new mm_magic_t);
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mm->init(MEM_SIZE);
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vec32* fh = vc_4stVectorRef(fromhost);
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vec32* th = vc_4stVectorRef(tohost);
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vec32* w = vc_4stVectorRef(width);
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char loadmem_str[1024];
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vc_VectorToString(loadmem, loadmem_str);
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if (*loadmem_str)
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load_mem(mm->get_data(), loadmem_str);
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assert(w->d <= 32); // htif_tick assumes data fits in a vec32
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htif_phy = new htif_phy_t(w->d, fh->d, th->d);
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}
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void htif_tick
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(
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vc_handle htif_in_valid,
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vc_handle htif_in_ready,
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vc_handle htif_in_bits,
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vc_handle htif_out_valid,
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vc_handle htif_out_ready,
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vc_handle htif_out_bits
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)
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{
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vec32* ob = vc_4stVectorRef(htif_out_bits);
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htif_phy->tick(vc_getScalar(htif_in_ready), vc_getScalar(htif_out_valid), ob->d);
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vc_putScalar(htif_in_valid, htif_phy->in_valid());
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vc_putScalar(htif_out_ready, htif_phy->out_ready());
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vec32 ib;
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ib.c = 0;
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ib.d = htif_phy->in_bits();
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vc_put4stVector(htif_in_bits, &ib);
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}
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}
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