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165 lines
8.1 KiB
VHDL
165 lines
8.1 KiB
VHDL
-- © IBM Corp. 2020
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-- Licensed under the Apache License, Version 2.0 (the "License"), as modified by
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-- the terms below; you may not use the files in this repository except in
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-- compliance with the License as modified.
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-- You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Modified Terms:
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--
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-- 1) For the purpose of the patent license granted to you in Section 3 of the
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-- License, the "Work" hereby includes implementations of the work of authorship
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-- in physical form.
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--
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-- 2) Notwithstanding any terms to the contrary in the License, any licenses
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-- necessary for implementation of the Work that are available from OpenPOWER
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-- via the Power ISA End User License Agreement (EULA) are explicitly excluded
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-- hereunder, and may be obtained from OpenPOWER under the terms and conditions
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-- of the EULA.
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--
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-- Unless required by applicable law or agreed to in writing, the reference design
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-- distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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-- WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
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-- for the specific language governing permissions and limitations under the License.
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--
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-- Additional rights, including the ability to physically implement a softcore that
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-- is compliant with the required sections of the Power ISA Specification, are
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-- available at no cost under the terms of the OpenPOWER Power ISA EULA, which can be
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-- obtained (along with the Power ISA) here: https://openpowerfoundation.org.
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--
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-- Description: Pervasive Core Event Bus Mux
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--
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--*****************************************************************************
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library ieee;
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use ieee.std_logic_1164.all;
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library support;
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use support.power_logic_pkg.all;
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library tri;
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use tri.tri_latches_pkg.all;
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entity pcq_dbg_event is
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generic(expand_type : integer := 2 -- 0 = ibm (Umbra), 1 = non-ibm, 2 = ibm (MPG)
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);
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port(
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vd : inout power_logic;
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gd : inout power_logic;
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event_mux_ctrls : in std_ulogic_vector(0 to 23);
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fu_event_data : in std_ulogic_vector(0 to 7);
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iu_event_data : in std_ulogic_vector(0 to 7);
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mm_event_data : in std_ulogic_vector(0 to 7);
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xu_event_data : in std_ulogic_vector(0 to 7);
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lsu_event_data : in std_ulogic_vector(0 to 7);
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trace_bus_data : in std_ulogic_vector(0 to 7);
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--------------------------------------------------------
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event_bus : out std_ulogic_vector(0 to 7)
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);
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-- synopsys translate_off
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-- synopsys translate_on
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end pcq_dbg_event;
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architecture pcq_dbg_event of pcq_dbg_event is
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--=====================================================================
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-- Signal Declarations
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--=====================================================================
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-- Event Mux Signals
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signal event_signals_per_bit : std_ulogic_vector(0 to 7);
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begin
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--=====================================================================
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-- Event Bus Mux Logic
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--=====================================================================
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with event_mux_ctrls(0 to 2) select -- CESR(40:42)
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event_signals_per_bit(0) <= xu_event_data(0) when "000",
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iu_event_data(0) when "001",
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fu_event_data(0) when "010",
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mm_event_data(0) when "011",
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lsu_event_data(0) when "100",
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xu_event_data(4) when "101",
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iu_event_data(4) when "110",
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trace_bus_data(0) when others;
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with event_mux_ctrls(3 to 5) select -- CESR(43:45)
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event_signals_per_bit(1) <= xu_event_data(1) when "000",
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iu_event_data(1) when "001",
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fu_event_data(1) when "010",
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mm_event_data(1) when "011",
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lsu_event_data(1) when "100",
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xu_event_data(5) when "101",
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iu_event_data(5) when "110",
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trace_bus_data(1) when others;
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with event_mux_ctrls(6 to 8) select -- CESR(46:48)
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event_signals_per_bit(2) <= xu_event_data(2) when "000",
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iu_event_data(2) when "001",
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fu_event_data(2) when "010",
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mm_event_data(2) when "011",
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lsu_event_data(2) when "100",
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xu_event_data(6) when "101",
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iu_event_data(6) when "110",
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trace_bus_data(2) when others;
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with event_mux_ctrls(9 to 11) select -- CESR(49:51)
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event_signals_per_bit(3) <= xu_event_data(3) when "000",
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iu_event_data(3) when "001",
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fu_event_data(3) when "010",
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mm_event_data(3) when "011",
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lsu_event_data(3) when "100",
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xu_event_data(7) when "101",
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iu_event_data(7) when "110",
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trace_bus_data(3) when others;
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with event_mux_ctrls(12 to 14) select -- CESR(52:54)
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event_signals_per_bit(4) <= xu_event_data(4) when "000",
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iu_event_data(4) when "001",
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fu_event_data(4) when "010",
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mm_event_data(4) when "011",
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lsu_event_data(4) when "100",
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xu_event_data(0) when "101",
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iu_event_data(0) when "110",
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trace_bus_data(4) when others;
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with event_mux_ctrls(15 to 17) select -- CESR(55:57)
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event_signals_per_bit(5) <= xu_event_data(5) when "000",
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iu_event_data(5) when "001",
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fu_event_data(5) when "010",
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mm_event_data(5) when "011",
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lsu_event_data(5) when "100",
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xu_event_data(1) when "101",
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iu_event_data(1) when "110",
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trace_bus_data(5) when others;
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with event_mux_ctrls(18 to 20) select -- CESR(58:60)
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event_signals_per_bit(6) <= xu_event_data(6) when "000",
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iu_event_data(6) when "001",
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fu_event_data(6) when "010",
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mm_event_data(6) when "011",
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lsu_event_data(6) when "100",
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xu_event_data(2) when "101",
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iu_event_data(2) when "110",
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trace_bus_data(6) when others;
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with event_mux_ctrls(21 to 23) select -- CESR(61:63)
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event_signals_per_bit(7) <= xu_event_data(7) when "000",
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iu_event_data(7) when "001",
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fu_event_data(7) when "010",
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mm_event_data(7) when "011",
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lsu_event_data(7) when "100",
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xu_event_data(3) when "101",
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iu_event_data(3) when "110",
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trace_bus_data(7) when others;
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--=====================================================================
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-- Outputs
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--=====================================================================
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event_bus(0 to 7) <= event_signals_per_bit(0 to 7);
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-----------------------------------------------------------------------
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end pcq_dbg_event;
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