management-unit #18

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Adam wants to merge 5 commits from management-unit into ganimede-rework
4 changed files with 26 additions and 26 deletions
Showing only changes of commit 15cc7c6000 - Show all commits

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@ -8,8 +8,8 @@ entity control_unit is
port ( port (
clk, rst : in std_logic; clk, rst : in std_logic;
cpu_to_controller : in cpu_to_controller_t; manager_to_controller : in manager_to_controller_t;
controller_to_cpu : out controller_to_cpu_t; controller_to_manager : out controller_to_manager_t;
drivers_to_controller : in drivers_to_controller_t; drivers_to_controller : in drivers_to_controller_t;
controller_to_drivers : out controller_to_drivers_t controller_to_drivers : out controller_to_drivers_t
); );
@ -31,7 +31,7 @@ architecture behave of control_unit is
begin begin
comb_proc: process(cpu_to_controller, drivers_to_controller, state) comb_proc: process(manager_to_controller, drivers_to_controller, state)
begin begin
ored := '0'; ored := '0';
ready_reduction: for i in 0 to number_of_drivers - 1 loop ready_reduction: for i in 0 to number_of_drivers - 1 loop
@ -40,7 +40,7 @@ begin
controller_to_drivers.socbridge.request <= state.curr_driver; controller_to_drivers.socbridge.request <= state.curr_driver;
controller_to_drivers.socbridge.address <= state.address; controller_to_drivers.socbridge.address <= state.address;
controller_to_drivers.socbridge.seq_mem_access_count <= state.seq_mem_access_count; controller_to_drivers.socbridge.seq_mem_access_count <= state.seq_mem_access_count;
controller_to_cpu.ready <= state.ready; controller_to_manager.ready <= state.ready;
controller_to_drivers.socbridge.instruction <= state.instruction; controller_to_drivers.socbridge.instruction <= state.instruction;
end process comb_proc; end process comb_proc;
@ -56,10 +56,10 @@ begin
else else
state.ready <= not ored; state.ready <= not ored;
if ored = '0' then if ored = '0' then
state.address <= cpu_to_controller.address; state.address <= manager_to_controller.address;
state.seq_mem_access_count <= cpu_to_controller.seq_mem_access_count; state.seq_mem_access_count <= manager_to_controller.seq_mem_access_count;
state.curr_driver <= cpu_to_controller.driver_id(0); state.curr_driver <= manager_to_controller.driver_id(0);
with cpu_to_controller.cmd select with manager_to_controller.cmd select
state.instruction <= WRITE when "01", state.instruction <= WRITE when "01",
READ when "10", READ when "10",
NO_OP when others; NO_OP when others;

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@ -14,13 +14,13 @@ architecture tb of control_unit_tb is
constant cycle: Time := 10 ns; constant cycle: Time := 10 ns;
signal clock: std_logic := '0'; signal clock: std_logic := '0';
signal reset: std_logic := '0'; signal reset: std_logic := '0';
signal cpu_to_controller: cpu_to_controller_t := ( signal manager_to_controller: manager_to_controller_t := (
(others => '0'), (others => '0'),
(others => '0'), (others => '0'),
0, 0,
"00"); "00");
signal drivers_to_controller: drivers_to_controller_t := (socbridge => (is_active => '0')); signal drivers_to_controller: drivers_to_controller_t := (socbridge => (is_active => '0'));
signal controller_to_cpu: controller_to_cpu_t; signal controller_to_manager: controller_to_manager_t;
signal controller_to_drivers: controller_to_drivers_t; signal controller_to_drivers: controller_to_drivers_t;
signal current_driver : std_logic_vector(0 downto 0) := "0"; signal current_driver : std_logic_vector(0 downto 0) := "0";
shared variable word_counter: natural := 0; shared variable word_counter: natural := 0;
@ -40,8 +40,8 @@ begin
port map( port map(
clk => clock, clk => clock,
rst => reset, rst => reset,
cpu_to_controller => cpu_to_controller, manager_to_controller => manager_to_controller,
controller_to_cpu => controller_to_cpu, controller_to_manager => controller_to_manager,
drivers_to_controller => drivers_to_controller, drivers_to_controller => drivers_to_controller,
controller_to_drivers => controller_to_drivers controller_to_drivers => controller_to_drivers
); );
@ -50,11 +50,11 @@ stimulus_proc: process
begin begin
wait for cycle; wait for cycle;
cpu_to_controller.driver_id <= "1"; manager_to_controller.driver_id <= "1";
drivers_to_controller.socbridge.is_active <= '0'; drivers_to_controller.socbridge.is_active <= '0';
cpu_to_controller.address <= x"F0F0F0F0"; manager_to_controller.address <= x"F0F0F0F0";
cpu_to_controller.seq_mem_access_count <= 3; manager_to_controller.seq_mem_access_count <= 3;
cpu_to_controller.cmd <= "01"; manager_to_controller.cmd <= "01";
word_counter := 3; word_counter := 3;
wait for cycle; wait for cycle;
current_driver <= "1"; current_driver <= "1";

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@ -10,8 +10,8 @@ entity ganimede_toplevel is
port ( port (
clk : in std_logic; clk : in std_logic;
rst : in std_logic; rst : in std_logic;
cpu_to_ganimede : in cpu_to_controller_t; manager_to_ganimede : in manager_to_controller_t;
ganimede_to_cpu : out controller_to_cpu_t; ganimede_to_manager : out controller_to_manager_t;
ext_to_ganimede : in ext_to_ganimede_t; ext_to_ganimede : in ext_to_ganimede_t;
ganimede_to_ext : out ganimede_to_ext_t; ganimede_to_ext : out ganimede_to_ext_t;
ip_to_ganimede : in ip_to_ganimede_t; ip_to_ganimede : in ip_to_ganimede_t;
@ -54,7 +54,7 @@ begin
ganimede_to_ext <= drivers_to_ext; ganimede_to_ext <= drivers_to_ext;
--- DRIVER INSTANTIATION --- --- DRIVER INSTANTIATION ---
socbridge_inst: entity socbridge.socbridge_driver socbridge_inst: entity gan_socbridge.socbridge_driver
port map( port map(
clk => clk, clk => clk,
rst => rst, rst => rst,
@ -70,8 +70,8 @@ begin
port map( port map(
clk => clk, clk => clk,
rst => rst, rst => rst,
cpu_to_controller => cpu_to_ganimede, manager_to_controller => manager_to_ganimede,
controller_to_cpu => ganimede_to_cpu, controller_to_manager => ganimede_to_manager,
drivers_to_controller => drivers_to_controller, drivers_to_controller => drivers_to_controller,
controller_to_drivers => controller_to_drivers controller_to_drivers => controller_to_drivers
); );

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@ -23,16 +23,16 @@ package io_types is
end record interface_inst_t; end record interface_inst_t;
--- CONTROL UNIT --- --- CONTROL UNIT ---
type cpu_to_controller_t is record type manager_to_controller_t is record
driver_id : std_logic_vector(number_of_drivers - 1 downto 0); driver_id : std_logic_vector(number_of_drivers - 1 downto 0);
address : std_logic_vector(address_width - 1 downto 0); address : std_logic_vector(address_width - 1 downto 0);
seq_mem_access_count : integer; seq_mem_access_count : integer;
cmd : std_logic_vector(1 downto 0); cmd : std_logic_vector(1 downto 0); --Noop: 00; Write: 01; Read: 10
end record cpu_to_controller_t; end record manager_to_controller_t;
type controller_to_cpu_t is record type controller_to_manager_t is record
ready : std_logic; ready : std_logic;
end record controller_to_cpu_t; end record controller_to_manager_t;
--- PROTOCOL INFORMATION --- --- PROTOCOL INFORMATION ---
constant interface_inst : interface_inst_t := ( constant interface_inst : interface_inst_t := (