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Slightly more strict holdoff of IRQs on AMO

This commit is contained in:
Luke Wren 2021-12-06 18:13:43 +00:00
parent 0b3629564c
commit 8bfc089660
1 changed files with 1 additions and 1 deletions
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hdl/hazard3_core.v
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@ -605,7 +605,7 @@ always @ (posedge clk or negedge rst_n) begin
// is chasing down the pipeline then this is immediately suppressed by the // is chasing down the pipeline then this is immediately suppressed by the
// IRQ entry, before its address phase can begin. // IRQ entry, before its address phase can begin.
xm_delay_irq_entry <= bus_aph_req_d && !bus_aph_ready_d || xm_delay_irq_entry <= bus_aph_req_d && !bus_aph_ready_d ||
d_memop_is_amo && (x_amo_phase == 3'h2 || x_amo_phase == 3'h3 && !bus_dph_ready_d); d_memop_is_amo && !((x_amo_phase == 3'h1 || x_amo_phase == 3'h3) && bus_dph_ready_d);
if (!x_stall) if (!x_stall)
prev_instr_was_32_bit <= df_cir_use == 2'd2; prev_instr_was_32_bit <= df_cir_use == 2'd2;
end end