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Mask non-enabled interrupts in WFI control (#765)

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Luca Colagrande 2021-11-23 09:14:26 +01:00 • committed by GitHub
parent e7dd85d4f9
commit 725a662384
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core/csr_regfile.sv
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@ -966,9 +966,9 @@ module csr_regfile import ariane_pkg::*; #(
always_comb begin : wfi_ctrl
// wait for interrupt register
wfi_d = wfi_q;
// if there is any interrupt pending un-stall the core
// if there is any (enabled) interrupt pending un-stall the core
// also un-stall if we want to enter debug mode
if (|mip_q || debug_req_i || irq_i[1]) begin
if (|(mip_q & mie_q) || debug_req_i || irq_i[1]) begin
wfi_d = 1'b0;
// or alternatively if there is no exception pending and we are not in debug mode wait here
// for the interrupt