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fastmodel: add amba_to_tlm_bridge hooks before going to gem5

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To handle atomic transaction, we need to convert amba far atomic
extension into gem5 atomic extension before going to gem5 world. This cl
prepares hooks that enables us to do the conversion.

Change-Id: I1b5a99c38f619689bd318253356928091a4fdb02
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/44645
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Yu-hsin Wang
2021-03-30 14:15:52 +08:00
parent ce6fdc5a84
commit da7d752679
2 changed files with 52 additions and 4 deletions
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43
src/arch/arm/fastmodel/amba_to_tlm_bridge.cc
View File

@@ -32,11 +32,21 @@
namespace FastModel
{
AmbaToTlmBridge64::AmbaToTlmBridge64(const char *name) :
AmbaToTlmBridge64::AmbaToTlmBridge64(const sc_core::sc_module_name& name) :
amba_pv::amba_pv_to_tlm_bridge<64>(name),
tlmWrapper(tlm_m, std::string(name) + ".tlm", -1),
targetProxy("target_proxy"),
initiatorProxy("initiator_proxy"),
tlmWrapper(initiatorProxy, std::string(name) + ".tlm", -1),
ambaWrapper(amba_pv_s, std::string(name) + ".amba", -1)
{}
{
targetProxy.register_b_transport(this, &AmbaToTlmBridge64::bTransport);
targetProxy.register_get_direct_mem_ptr(
this, &AmbaToTlmBridge64::getDirectMemPtr);
targetProxy.register_transport_dbg(this, &AmbaToTlmBridge64::transportDbg);
initiatorProxy.register_invalidate_direct_mem_ptr(
this, &AmbaToTlmBridge64::invalidateDirectMemPtr);
tlm_m(targetProxy);
}
Port &
AmbaToTlmBridge64::gem5_getPort(const std::string &if_name, int idx)
@@ -49,6 +59,33 @@ AmbaToTlmBridge64::gem5_getPort(const std::string &if_name, int idx)
return amba_pv::amba_pv_to_tlm_bridge<64>::gem5_getPort(if_name, idx);
}
void
AmbaToTlmBridge64::bTransport(amba_pv::amba_pv_transaction &trans,
sc_core::sc_time &t)
{
return initiatorProxy->b_transport(trans, t);
}
bool
AmbaToTlmBridge64::getDirectMemPtr(amba_pv::amba_pv_transaction &trans,
tlm::tlm_dmi &dmi_data)
{
return initiatorProxy->get_direct_mem_ptr(trans, dmi_data);
}
unsigned int
AmbaToTlmBridge64::transportDbg(amba_pv::amba_pv_transaction &trans)
{
return initiatorProxy->transport_dbg(trans);
}
void
AmbaToTlmBridge64::invalidateDirectMemPtr(sc_dt::uint64 start_range,
sc_dt::uint64 end_range)
{
targetProxy->invalidate_direct_mem_ptr(start_range, end_range);
}
} // namespace FastModel
FastModel::AmbaToTlmBridge64 *

13
src/arch/arm/fastmodel/amba_to_tlm_bridge.hh
View File

@@ -43,11 +43,22 @@ namespace FastModel
class AmbaToTlmBridge64 : public amba_pv::amba_pv_to_tlm_bridge<64>
{
public:
AmbaToTlmBridge64(const char *name);
AmbaToTlmBridge64(const sc_core::sc_module_name &name);
::Port &gem5_getPort(const std::string &if_name, int idx=-1) override;
private:
void bTransport(amba_pv::amba_pv_transaction &trans, sc_core::sc_time &t);
bool getDirectMemPtr(amba_pv::amba_pv_transaction &trans,
tlm::tlm_dmi &dmi_data);
unsigned int transportDbg(amba_pv::amba_pv_transaction &trans);
void invalidateDirectMemPtr(sc_dt::uint64 start_range,
sc_dt::uint64 end_range);
tlm_utils::simple_target_socket<
AmbaToTlmBridge64, 64, tlm::tlm_base_protocol_types> targetProxy;
tlm_utils::simple_initiator_socket<
AmbaToTlmBridge64, 64, tlm::tlm_base_protocol_types> initiatorProxy;
sc_gem5::TlmInitiatorWrapper<64> tlmWrapper;
AmbaTarget ambaWrapper;
};