From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Thu, 18 Apr 2019 19:55:18 +0000 (+0100)
Subject: random experiments with ptw.py
X-Git-Tag: div_pipeline~2222
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a3b763924d2682dc0aefc85d203ccf581901ced1;p=soc.git

random experiments with ptw.py
---

diff --git a/TLB/src/ariane/test_ptw.py b/TLB/src/ariane/test_ptw.py
index 7132eb4f..35581bdb 100644
--- a/TLB/src/ariane/test_ptw.py
+++ b/TLB/src/ariane/test_ptw.py
@@ -1,23 +1,49 @@
 from nmigen.compat.sim import run_simulation
 
-from ptw import PTW
+from ptw import PTW, PTE
 
 
 def testbench(dut):
+
+    addr = 0x8000000
+
+    #pte = PTE()
+    #yield pte.v.eq(1)
+    #yield pte.r.eq(1)
+
     yield dut.req_port_i.data_gnt.eq(1)
     yield dut.req_port_i.data_rvalid.eq(1)
-    yield dut.req_port_i.data_rdata.eq(0x0001)
+    yield dut.req_port_i.data_rdata.eq(0xc2<<56)#pte.flatten())
 
-    yield dut.enable_translation_i.eq(1)
+    yield dut.en_ld_st_translation_i.eq(1)
     yield dut.asid_i.eq(1)
 
-    yield dut.itlb_access_i.eq(1)
-    yield dut.itlb_hit_i.eq(0)
-    yield dut.itlb_vaddr_i.eq(0x0001)
+    yield dut.dtlb_access_i.eq(1)
+    yield dut.dtlb_hit_i.eq(0)
+    yield dut.dtlb_vaddr_i.eq(0x400000000)
+
+    yield
+    yield
+    yield
+
+    yield dut.dtlb_access_i.eq(1)
+    yield dut.dtlb_hit_i.eq(0)
+    yield dut.dtlb_vaddr_i.eq(0x200000)
 
     yield
     yield
     yield
+
+    yield dut.req_port_i.data_gnt.eq(0)
+    yield dut.dtlb_access_i.eq(1)
+    yield dut.dtlb_hit_i.eq(0)
+    yield dut.dtlb_vaddr_i.eq(0x400000011)
+
+    yield
+    yield dut.req_port_i.data_gnt.eq(1)
+    yield
+    yield
+
     yield
 
     
diff --git a/TLB/src/ariane/test_tlb.py b/TLB/src/ariane/test_tlb.py
index 2ef887c1..bebca7f0 100644
--- a/TLB/src/ariane/test_tlb.py
+++ b/TLB/src/ariane/test_tlb.py
@@ -10,11 +10,9 @@ def set_vaddr(addr):
 def testbench(dut):
     yield dut.lu_access_i.eq(1)
     yield dut.lu_asid_i.eq(1)
-    yield dut.lu_vaddr_i.eq(0x80000)
     yield dut.update_i.valid.eq(1)
     yield dut.update_i.is_1G.eq(0)
     yield dut.update_i.is_2M.eq(0)
-    yield dut.update_i.vpn.eq(0x80000)
     yield dut.update_i.asid.eq(1)
     yield dut.update_i.content.ppn.eq(0)
     yield dut.update_i.content.rsw.eq(0)