Wei-Han Chen has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/69481?usp=email )
Change subject: fastmodel: Create amba_pv extension if not exist
......................................................................
fastmodel: Create amba_pv extension if not exist
This CL create amba_pv extension is it doesn't exist in tlm to amba
bridge. Also, when creating a new amba_pv extension, it tries to set
that correctly.
Change-Id: I5cbb537192e95a615ff7e606657f73426f2c79a8
---
M src/arch/arm/fastmodel/amba_from_tlm_bridge.cc
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/src/arch/arm/fastmodel/amba_from_tlm_bridge.cc
b/src/arch/arm/fastmodel/amba_from_tlm_bridge.cc
index d21b5f8..34a63bb 100644
--- a/src/arch/arm/fastmodel/amba_from_tlm_bridge.cc
+++ b/src/arch/arm/fastmodel/amba_from_tlm_bridge.cc
@@ -108,8 +108,29 @@
amba_pv::amba_pv_extension *amba_ex = nullptr;
trans.get_extension(amba_ex);
+
if (!amba_ex) {
- return;
+ amba_ex = new amba_pv::amba_pv_extension();
+
+ // Codes are copied from amba_pv_from_tlm_bridge header.
+ // It tries to initiate a new amba_pv extension correctly.
+ unsigned int l = trans.get_data_length();
+ unsigned int w = amba_pv_m.get_bus_width_bytes();
+ if (l > w) {
+ amba_ex->set_size(w);
+ amba_ex->set_length(l / w);
+ if (trans.get_streaming_width() < l) {
+ amba_ex->set_burst(amba_pv::AMBA_PV_FIXED);
+ }
+ } else {
+ amba_ex->set_size(l);
+ }
+
+ if (trans.has_mm()) {
+ trans.set_auto_extension(amba_ex);
+ } else {
+ trans.set_extension(amba_ex);
+ }
}
amba_ex->set_privileged(control_ex->isPrivileged());
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I5cbb537192e95a615ff7e606657f73426f2c79a8
Gerrit-Change-Number: 69481
Gerrit-PatchSet: 1
Gerrit-Owner: Wei-Han Chen <weihanc...@google.com>
Gerrit-MessageType: newchange
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