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Collect transaction functional coverage for ICache-Mem iface

Browse source 
This single covergroup was extracted from the icache
documentation (icache.rst).
This commit is contained in:
Rupert Swarbrick 2020-06-08 12:59:39 +01:00 • committed by Rupert Swarbrick
parent a581981271
commit 13135e2e70
2 changed files with 7 additions and 2 deletions
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8
dv/uvm/icache/dv/ibex_icache_mem_agent/ibex_icache_mem_agent_cov.sv
View file

@ -10,11 +10,15 @@ class ibex_icache_mem_agent_cov
// the base class provides the following handles for use:
// ibex_icache_mem_agent_cfg: cfg
// covergroups
// Spot the gnt and pmp_err signal being high at the same time (the error should take precedence).
// This is sampled when gnt is high and tracks whether pmp_err is high too.
covergroup gnt_err_cg with function sample(bit pmp_err);
coverpoint pmp_err;
endgroup : gnt_err_cg
function new(string name, uvm_component parent);
super.new(name, parent);
// instantiate all covergroups here
gnt_err_cg = new();
endfunction : new
endclass

1
dv/uvm/icache/dv/ibex_icache_mem_agent/ibex_icache_mem_monitor.sv
View file

@ -84,6 +84,7 @@ class ibex_icache_mem_monitor
if (cfg.vif.monitor_cb.req && cfg.vif.monitor_cb.gnt && !cfg.vif.monitor_cb.pmp_err) begin
new_grant(cfg.vif.monitor_cb.addr);
end
if (cfg.en_cov && cfg.vif.monitor_cb.gnt) cov.gnt_err_cg.sample(cfg.vif.monitor_cb.pmp_err);
@(cfg.vif.monitor_cb);
end