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author | Gabe Black <gabeblack@google.com> | 2018-12-08 01:58:26 -0800 |
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committer | Gabe Black <gabeblack@google.com> | 2019-01-09 01:31:53 +0000 |
commit | 7364acfc758a30f81aa75844f6b96b1e4e19990a (patch) | |
tree | 1b38a95be59607d1199d3ba52b46d04afc4cbee4 /src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h | |
parent | 3e1e21da61d79b79534a18398b1dde2cc4e473cb (diff) | |
download | gem5-7364acfc758a30f81aa75844f6b96b1e4e19990a.tar.xz |
systemc: Initial import of TLM headers from Accellera.
These headers will need to be cleaned up and have some Accellera
specific quirks ironed out of them, but I'll do that in a later change
to make it clear what those changes are.
Change-Id: Ia4e08633ab552b4c616c66c9b7e2bbd78ebfe7b9
Reviewed-on: https://gem5-review.googlesource.com/c/15055
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Diffstat (limited to 'src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h')
-rw-r--r-- | src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h new file mode 100644 index 000000000..d9b2b985b --- /dev/null +++ b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_fifo_ifs.h @@ -0,0 +1,85 @@ +/***************************************************************************** + + Licensed to Accellera Systems Initiative Inc. (Accellera) under one or + more contributor license agreements. See the NOTICE file distributed + with this work for additional information regarding copyright ownership. + Accellera licenses this file to you under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with the + License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied. See the License for the specific language governing + permissions and limitations under the License. + + *****************************************************************************/ + +// +// Note to the LRM writer : These interfaces are channel specific interfaces +// useful in the context of tlm_fifo. +// + +#ifndef __TLM_FIFO_IFS_H__ +#define __TLM_FIFO_IFS_H__ + +#include "tlm_core/tlm_1/tlm_req_rsp/tlm_1_interfaces/tlm_core_ifs.h" + +namespace tlm { + +// +// Fifo specific interfaces +// + +// Fifo Debug Interface + +template< typename T > +class tlm_fifo_debug_if : public virtual sc_core::sc_interface +{ +public: + virtual int used() const = 0; + virtual int size() const = 0; + virtual void debug() const = 0; + + // + // non blocking peek and poke - no notification + // + // n is index of data : + // 0 <= n < size(), where 0 is most recently written, and size() - 1 + // is oldest ie the one about to be read. + // + + virtual bool nb_peek( T & , int n ) const = 0; + virtual bool nb_poke( const T & , int n = 0 ) = 0; + +}; + +// fifo interfaces = extended + debug + +template < typename T > +class tlm_fifo_put_if : + public virtual tlm_put_if<T> , + public virtual tlm_fifo_debug_if<T> {}; + +template < typename T > +class tlm_fifo_get_if : + public virtual tlm_get_peek_if<T> , + public virtual tlm_fifo_debug_if<T> {}; + +class tlm_fifo_config_size_if : public virtual sc_core::sc_interface +{ +public: + virtual void nb_expand( unsigned int n = 1 ) = 0; + virtual void nb_unbound( unsigned int n = 16 ) = 0; + + virtual bool nb_reduce( unsigned int n = 1 ) = 0; + virtual bool nb_bound( unsigned int n ) = 0; + +}; + +} // namespace tlm + +#endif + |