Gabe Black has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/65754?usp=email )
Change subject: systemc: Enable DMI in the non-blocking/timing mode bridge.
......................................................................
systemc: Enable DMI in the non-blocking/timing mode bridge.
Change-Id: Ia618081e2dbf8b49f62480ac5dc29f87100cd4f1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65754
Maintainer: Gabe Black <gabebl...@google.com>
Tested-by: kokoro <noreply+kok...@google.com>
Reviewed-by: Gabe Black <gabebl...@google.com>
---
M src/systemc/tlm_bridge/tlm_to_gem5.cc
1 file changed, 38 insertions(+), 2 deletions(-)
Approvals:
kokoro: Regressions pass
Gabe Black: Looks good to me, approved; Looks good to me, approved
diff --git a/src/systemc/tlm_bridge/tlm_to_gem5.cc
b/src/systemc/tlm_bridge/tlm_to_gem5.cc
index 47a2fba..c02efe7 100644
--- a/src/systemc/tlm_bridge/tlm_to_gem5.cc
+++ b/src/systemc/tlm_bridge/tlm_to_gem5.cc
@@ -207,6 +207,29 @@
TlmToGem5Bridge<BITWIDTH>::sendBeginResp(tlm::tlm_generic_payload &trans,
sc_core::sc_time &delay)
{
+ MemBackdoor::Flags flags;
+ switch (trans.get_command()) {
+ case tlm::TLM_READ_COMMAND:
+ flags = MemBackdoor::Readable;
+ break;
+ case tlm::TLM_WRITE_COMMAND:
+ flags = MemBackdoor::Writeable;
+ break;
+ default:
+ panic("TlmToGem5Bridge: "
+ "received transaction with unsupported command");
+ }
+ Addr start_addr = trans.get_address();
+ Addr length = trans.get_data_length();
+
+ MemBackdoorReq req({start_addr, start_addr + length}, flags);
+ MemBackdoorPtr backdoor = nullptr;
+
+ bmp.sendMemBackdoorReq(req, backdoor);
+
+ if (backdoor)
+ trans.set_dmi_allowed(true);
+
tlm::tlm_phase phase = tlm::BEGIN_RESP;
auto status = socket->nb_transport_bw(trans, phase, delay);
@@ -574,12 +597,12 @@
DPRINTF(TlmBridge, "register blocking interface");
socket.register_b_transport(
this, &TlmToGem5Bridge<BITWIDTH>::b_transport);
- socket.register_get_direct_mem_ptr(
- this, &TlmToGem5Bridge<BITWIDTH>::get_direct_mem_ptr);
} else {
panic("gem5 operates neither in Timing nor in Atomic mode");
}
+ socket.register_get_direct_mem_ptr(
+ this, &TlmToGem5Bridge<BITWIDTH>::get_direct_mem_ptr);
socket.register_transport_dbg(
this, &TlmToGem5Bridge<BITWIDTH>::transport_dbg);
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ia618081e2dbf8b49f62480ac5dc29f87100cd4f1
Gerrit-Change-Number: 65754
Gerrit-PatchSet: 4
Gerrit-Owner: Gabe Black <gabe.bl...@gmail.com>
Gerrit-Reviewer: Earl Ou <shunhsin...@google.com>
Gerrit-Reviewer: Gabe Black <gabe.bl...@gmail.com>
Gerrit-Reviewer: Gabe Black <gabebl...@google.com>
Gerrit-Reviewer: Jui-min Lee <f...@google.com>
Gerrit-Reviewer: Yu-hsin Wang <yuhsi...@google.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-MessageType: merged
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