Gabe Black has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/65751?usp=email )
Change subject: mem: Add a class to describe a back door request.
......................................................................
mem: Add a class to describe a back door request.
In cases where a back door is not being requested alongside a packet
or request, there needs to be a structure which describes the address
range to use, and what type of access the back door should support. It
would be possible to make a Packet/Request to carry that information,
but those types are actually pretty big, and have a lot of extra
overhead which would be overkill for this purpose.
Change-Id: I3638361ffa758ee959cb3bc57f7c35f2aa34a36c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65751
Reviewed-by: Jason Lowe-Power <power...@gmail.com>
Maintainer: Gabe Black <gabebl...@google.com>
Tested-by: kokoro <noreply+kok...@google.com>
---
M src/mem/backdoor.hh
1 file changed, 39 insertions(+), 0 deletions(-)
Approvals:
Jason Lowe-Power: Looks good to me, approved
Gabe Black: Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/mem/backdoor.hh b/src/mem/backdoor.hh
index 73e6670..54fe4ac 100644
--- a/src/mem/backdoor.hh
+++ b/src/mem/backdoor.hh
@@ -126,6 +126,25 @@
typedef MemBackdoor *MemBackdoorPtr;
+class MemBackdoorReq
+{
+ private:
+ AddrRange _range;
+ MemBackdoor::Flags _flags;
+
+ public:
+ MemBackdoorReq(AddrRange r, MemBackdoor::Flags new_flags) :
+ _range(r), _flags(new_flags)
+ {}
+
+ const AddrRange &range() const { return _range; }
+
+ bool readable() const { return _flags & MemBackdoor::Readable; }
+ bool writeable() const { return _flags & MemBackdoor::Writeable; }
+
+ MemBackdoor::Flags flags() const { return _flags; }
+};
+
} // namespace gem5
#endif //__MEM_BACKDOOR_HH__
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I3638361ffa758ee959cb3bc57f7c35f2aa34a36c
Gerrit-Change-Number: 65751
Gerrit-PatchSet: 2
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: Jason Lowe-Power <power...@gmail.com>
Gerrit-Reviewer: Jui-min Lee <f...@google.com>
Gerrit-Reviewer: Nikos Nikoleris <nikos.nikole...@arm.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-MessageType: merged
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