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fixed snoop forwarder dequue to support out of order responses

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This commit is contained in:
Blaise Tine
2020-05-23 20:19:54 -04:00
parent 9398c07afb
commit c54fa50715
4 changed files with 3637 additions and 98765 deletions
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8
hw/simulate/simulator.cpp
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@@ -195,14 +195,18 @@ void Simulator::flush_caches(uint32_t mem_addr, uint32_t size) {
if (vortex_->snp_rsp_valid) {
assert(pending_snp_reqs > 0);
--pending_snp_reqs;
//std::cout << timestamp << ": [sim] snp rsp: tag=" << vortex_->snp_rsp_tag << " pending=" << pending_snp_reqs << std::endl;
#ifdef DBG_PRINT_CACHE_SNP
std::cout << timestamp << ": [sim] snp rsp: tag=" << vortex_->snp_rsp_tag << " pending=" << pending_snp_reqs << std::endl;
#endif
}
if (vortex_->snp_req_valid && vortex_->snp_req_ready) {
if (vortex_->snp_req_addr < aligned_addr_end) {
vortex_->snp_req_addr += 1;
vortex_->snp_req_tag += 1;
++pending_snp_reqs;
//std::cout << timestamp << ": [sim] snp req: addr=" << vortex_->snp_req_addr << " tag=" << vortex_->snp_req_tag << " remain=" << (aligned_addr_end - vortex_->snp_req_addr) << std::endl;
#ifdef DBG_PRINT_CACHE_SNP
std::cout << timestamp << ": [sim] snp req: addr=" << vortex_->snp_req_addr << " tag=" << vortex_->snp_req_tag << " remain=" << (aligned_addr_end - vortex_->snp_req_addr) << std::endl;
#endif
} else {
vortex_->snp_req_valid = 0;
}