From 405c0287c80c34b0e9dfb9d9326b86d12433b4c4 Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Thu, 2 May 2024 21:03:05 -0600 Subject: platform/wavelet3d: implement shader cores This commit contains over a month of intermittent work (I don't have enough free time to do this the right way) --- platform/wavelet3d/gfx_skid_flow.sv | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 platform/wavelet3d/gfx_skid_flow.sv (limited to 'platform/wavelet3d/gfx_skid_flow.sv') diff --git a/platform/wavelet3d/gfx_skid_flow.sv b/platform/wavelet3d/gfx_skid_flow.sv new file mode 100644 index 0000000..7890ae3 --- /dev/null +++ b/platform/wavelet3d/gfx_skid_flow.sv @@ -0,0 +1,31 @@ +module gfx_skid_flow +( + input logic clk, + rst_n, + + input logic in_valid, + out_ready, + + output logic in_ready, + out_valid, + stall +); + + logic was_ready, was_valid; + + assign stall = ~in_ready; + assign in_ready = was_ready | ~was_valid; + assign out_valid = in_valid | stall; + + always_ff @(posedge clk or negedge rst_n) + if (~rst_n) begin + was_ready <= 0; + was_valid <= 0; + end else begin + was_ready <= out_ready; + + if (~stall) + was_valid <= in_valid; + end + +endmodule -- cgit v1.2.3