Yu-hsin Wang has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/45581 )
Change subject: fastmodel: Use Iris API to access memory
......................................................................
fastmodel: Use Iris API to access memory
Memory space is not always outside of the CPU. For example the tightly
coupled memory (TCM) is inside of the core. To make gdb access those
kind of memory, we should use Iris memory API to read and write memory.
If we access a memory address not inside the CPU with Iris memory API.
The CPU would fire a request via amba transport_dbg. So the change also
covers the original behavior.
Change-Id: Ie223ab12f9a746ebafa21026a8680222f6ebd593
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45581
Reviewed-by: Gabe Black <gabe.bl...@gmail.com>
Maintainer: Gabe Black <gabe.bl...@gmail.com>
Tested-by: kokoro <noreply+kok...@google.com>
---
M src/arch/arm/fastmodel/iris/thread_context.cc
1 file changed, 9 insertions(+), 3 deletions(-)
Approvals:
Gabe Black: Looks good to me, approved; Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/arch/arm/fastmodel/iris/thread_context.cc
b/src/arch/arm/fastmodel/iris/thread_context.cc
index 716ffad..87e4e77 100644
--- a/src/arch/arm/fastmodel/iris/thread_context.cc
+++ b/src/arch/arm/fastmodel/iris/thread_context.cc
@@ -503,9 +503,15 @@
void
ThreadContext::sendFunctional(PacketPtr pkt)
{
- auto *iris_cpu = dynamic_cast<Iris::BaseCPU *>(getCpuPtr());
- assert(iris_cpu);
- iris_cpu->evs_base_cpu->sendFunc(pkt);
+ auto addr = pkt->getAddr();
+ auto size = pkt->getSize();
+ auto data = pkt->getPtr<uint8_t>();
+
+ pkt->makeResponse();
+ if (pkt->isRead())
+ readMem(addr, data, size);
+ else
+ writeMem(addr, data, size);
}
ThreadContext::Status
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ie223ab12f9a746ebafa21026a8680222f6ebd593
Gerrit-Change-Number: 45581
Gerrit-PatchSet: 5
Gerrit-Owner: Yu-hsin Wang <yuhsi...@google.com>
Gerrit-Reviewer: Earl Ou <shunhsin...@google.com>
Gerrit-Reviewer: Gabe Black <gabe.bl...@gmail.com>
Gerrit-Reviewer: Philip Metzler <cpm...@google.com>
Gerrit-Reviewer: Yu-hsin Wang <yuhsi...@google.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-MessageType: merged
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