From 2dc8c8ea0b07ef2d1d94a0918d94909ad805c813 Mon Sep 17 00:00:00 2001 From: Navaneeth-Kunhi Purayil Date: Mon, 9 Dec 2024 14:05:03 +0100 Subject: [PATCH] [sw] added initial support for interface with memory island --- hw/system/spatz_cluster/cfg/flamingo.hjson | 4 ++++ hw/system/spatz_cluster/src/spatz_cluster.sv | 6 +++-- .../src/spatz_cluster_wrapper.sv.tpl | 5 ++-- hw/system/spatz_cluster/tb/testbench.sv.tpl | 24 +++++++++++++++++-- hw/system/spatz_cluster/test/link.ld.tpl | 4 +++- sw/snRuntime/CMakeLists.txt | 2 ++ sw/snRuntime/link/common.ld.in | 2 +- 7 files changed, 39 insertions(+), 8 deletions(-) diff --git a/hw/system/spatz_cluster/cfg/flamingo.hjson b/hw/system/spatz_cluster/cfg/flamingo.hjson index 19826802..bf89d9da 100644 --- a/hw/system/spatz_cluster/cfg/flamingo.hjson +++ b/hw/system/spatz_cluster/cfg/flamingo.hjson @@ -67,6 +67,10 @@ // 0x8000_0000 length: 2147483648 }, + l2: { + address: 2013265920, // 0x78000000 + length: 8388608 // 0x800000 + }, peripherals: { }, diff --git a/hw/system/spatz_cluster/src/spatz_cluster.sv b/hw/system/spatz_cluster/src/spatz_cluster.sv index 205522e1..fa73f6b8 100644 --- a/hw/system/spatz_cluster/src/spatz_cluster.sv +++ b/hw/system/spatz_cluster/src/spatz_cluster.sv @@ -37,6 +37,8 @@ module spatz_cluster parameter int unsigned AxiUserWidth = 1, /// Address from which to fetch the first instructions. parameter logic [31:0] BootAddr = 32'h0, + /// Address to indicate start of L2 + parameter logic [AxiAddrWidth-1:0] L2Addr = 48'h0, /// The total amount of cores. parameter int unsigned NrCores = 8, /// Data/TCDM memory depth per cut (in words). @@ -403,8 +405,8 @@ module spatz_cluster // assign cluster_l2_start_address = cluster_periph_end_address + ClusterReserve * 1024; // assign cluster_l2_end_address = cluster_l2_start_address + ClusterL2Size * 1024; // TODO: change to calc base on cluster_base_addr_i - assign cluster_l2_start_address = 48'h5180_0000; - assign cluster_l2_end_address = 48'h5200_0000; + assign cluster_l2_start_address = L2Addr; //48'h5180_0000; + assign cluster_l2_end_address = 48'h7880_0000; //48'h5200_0000; // ---------------- // Wire Definitions diff --git a/hw/system/spatz_cluster/src/spatz_cluster_wrapper.sv.tpl b/hw/system/spatz_cluster/src/spatz_cluster_wrapper.sv.tpl index c9f1bca7..3105d453 100644 --- a/hw/system/spatz_cluster/src/spatz_cluster_wrapper.sv.tpl +++ b/hw/system/spatz_cluster/src/spatz_cluster_wrapper.sv.tpl @@ -529,6 +529,7 @@ module ${cfg['name']}_wrapper .AxiIdWidthOut (spatz_cluster_pkg::IwcAxiIdOutWidth), .AxiUserWidth (AxiUserWidth), .BootAddr (${to_sv_hex(cfg['boot_addr'], 32)}), + .L2Addr (48'h78000000), .ClusterPeriphSize (${cfg['cluster_periph_size']}), .NrCores (${cfg['nr_cores']}), .TCDMDepth (${cfg['tcdm']['depth']}), @@ -590,8 +591,8 @@ module ${cfg['name']}_wrapper // AXI Master Port .axi_out_req_o ( axi_from_cluster_iwc_req ), .axi_out_resp_i ( axi_from_cluster_iwc_resp ), - .axi_out_l2_req_o ( /* unused now */ ), - .axi_out_l2_resp_i ( '0 ) + .axi_out_l2_req_o ( axi_from_cluster_l2_req ), + .axi_out_l2_resp_i ( axi_from_cluster_l2_resp ) ); // Assertions diff --git a/hw/system/spatz_cluster/tb/testbench.sv.tpl b/hw/system/spatz_cluster/tb/testbench.sv.tpl index 7acaacd1..197f14b8 100644 --- a/hw/system/spatz_cluster/tb/testbench.sv.tpl +++ b/hw/system/spatz_cluster/tb/testbench.sv.tpl @@ -28,8 +28,13 @@ module testharness ( localparam NumAXISlaves = 2; localparam NumRules = NumAXISlaves-1; + // Spatz wide port to SoC (currently dram) spatz_axi_out_req_t axi_from_cluster_req; spatz_axi_out_resp_t axi_from_cluster_resp; + // Spatz wide port to L2 + spatz_axi_out_req_t axi_l2_req; + spatz_axi_out_resp_t axi_l2_resp; + // From SoC to Spatz spatz_axi_in_req_t axi_to_cluster_req; spatz_axi_in_resp_t axi_to_cluster_resp; @@ -205,8 +210,8 @@ module testharness ( % else: .axi_out_req_o (axi_from_cluster_req ), .axi_out_resp_i (axi_from_cluster_resp), - .axi_out_l2_req_o ( ), - .axi_out_l2_resp_i ('0), + .axi_out_l2_req_o ( axi_l2_req ), + .axi_out_l2_resp_i ( axi_l2_resp ), .axi_in_req_i (axi_to_cluster_req ), .axi_in_resp_o (axi_to_cluster_resp ), % endif @@ -342,4 +347,19 @@ module testharness ( .rsp_o (axi_from_cluster_resp) ); + // Wide port into simulation memory. + tb_memory_axi #( + .AxiAddrWidth ( SpatzAxiAddrWidth ), + .AxiDataWidth ( SpatzAxiDataWidth ), + .AxiIdWidth ( SpatzAxiIdOutWidth ), + .AxiUserWidth ( SpatzAxiUserWidth ), + .req_t ( spatz_axi_out_req_t ), + .rsp_t ( spatz_axi_out_resp_t ) + ) i_l2mem ( + .clk_i (clk_i ), + .rst_ni(rst_ni ), + .req_i (axi_l2_req ), + .rsp_o (axi_l2_resp ) + ); + endmodule : testharness diff --git a/hw/system/spatz_cluster/test/link.ld.tpl b/hw/system/spatz_cluster/test/link.ld.tpl index 52712a3e..c46a5ca0 100644 --- a/hw/system/spatz_cluster/test/link.ld.tpl +++ b/hw/system/spatz_cluster/test/link.ld.tpl @@ -5,15 +5,17 @@ OUTPUT_ARCH( "riscv" ) ENTRY(_start) <% dram_address = cfg['dram']['address']; %> +<% l2_address = cfg['l2']['address']; %> MEMORY { DRAM (rwxai) : ORIGIN = ${dram_address}, LENGTH = ${cfg['dram']['length']} + L2 (rwxai) : ORIGIN = ${cfg['l2']['address']}, LENGTH = ${cfg['l2']['length']} L1 (rw) : ORIGIN = ${l1_region[0]}, LENGTH = ${l1_region[1]}K } SECTIONS { - . = ${dram_address}; + . = ${l2_address}; .text.init : { *(.text.init) } . = ALIGN(0x1000); .tohost : { *(.tohost) } diff --git a/sw/snRuntime/CMakeLists.txt b/sw/snRuntime/CMakeLists.txt index cd6b8d46..cdd166c5 100644 --- a/sw/snRuntime/CMakeLists.txt +++ b/sw/snRuntime/CMakeLists.txt @@ -28,6 +28,8 @@ add_compile_options(-O3 -g -ffunction-sections) if(SNITCH_RUNTIME STREQUAL "snRuntime-cluster") set(MEM_DRAM_ORIGIN "0x80000000" CACHE STRING "Base address of external memory") set(MEM_DRAM_SIZE "0x80000000" CACHE STRING "Size of external memory") + set(L2_ORIGIN "0x78000000" CACHE STRING "Base address of L2 memory") + set(L2_SIZE "0x78800000" CACHE STRING "Size of L2 memory") else() set(MEM_DRAM_ORIGIN "0x80000000" CACHE STRING "Base address of external memory") set(MEM_DRAM_SIZE "256M" CACHE STRING "Size of external memory") diff --git a/sw/snRuntime/link/common.ld.in b/sw/snRuntime/link/common.ld.in index 41ec54d8..c521f884 100644 --- a/sw/snRuntime/link/common.ld.in +++ b/sw/snRuntime/link/common.ld.in @@ -7,7 +7,7 @@ ENTRY(_start) MEMORY { - DRAM (rwxa) : ORIGIN = @MEM_DRAM_ORIGIN@, LENGTH = @MEM_DRAM_SIZE@ + DRAM (rwxa) : ORIGIN = @L2_ORIGIN@, LENGTH = @L2_SIZE@ } SECTIONS