Luke Wren
799f4f2c26
Fix verilator lint width issues in triggers, PMP, DM.
...
There was one genuine issue introduced by PPA changes in 78a5cb98e
which
affected instruction injection on multiple harts from the DM (indicating
SMP debug testing needs to be part of regular automated regressions,
instead of semi-manual...). The rest are cosmetic.
2024-05-29 15:32:45 +01:00
Luke Wren
7d370292b0
Fix transposition of RWX <-> XWR in PMP implementation.
...
None of upstream tests used for Hazard3 seem to cover X != R. The
Hazard3 tests covered this case, but the header file for the tests has
the same mistake. Fix the header.
2024-04-27 13:52:43 +01:00
Luke Wren
c55d3f0d0b
Make custom IRQ and PMP functionality optional. Factor out IRQ controller into separate module.
2022-10-05 23:53:04 +01:00
Luke Wren
9eb8590858
Add generate to avoid elaborating internals of PMP/triggers with 0 PMP regions or triggers.
2022-09-05 00:36:41 +01:00
Luke Wren
3b7cd9bc96
Cleanup some unused signals
2022-08-20 16:44:39 +01:00
Luke Wren
276830ecb6
Fix missing default assignment of i_m in PMP decode
2022-08-16 09:23:42 +01:00
Luke Wren
be05dc32d4
Oops, typo in update of new pmpcfg_m field
2022-08-11 20:46:32 +01:00
Luke Wren
5819f8eb7e
Remove wrong/useless mxr logic in PMP
2022-08-08 18:45:37 +01:00
Luke Wren
92ebbbe95f
Add pmpcfgm0 register: make regions M-mode without locking them
2022-08-08 18:34:55 +01:00
Luke Wren
add19506a5
Oops, bad if block nesting in PMP
2022-07-25 13:09:03 +01:00
Luke Wren
254350d300
Clean up tie-off of hardwired PMP registers
2022-07-04 14:31:42 +01:00
Luke Wren
ae2784d0ea
PMP config: separate granularity config from hardwired region config. Give correct read value for G > 1.
2022-06-03 17:09:43 +01:00
Luke Wren
e0a9fb7312
Add option to hardwire PMP regions, or reduce their granularity
2022-06-03 01:19:03 +01:00
Luke Wren
c93228d13e
Integrate PMP, and fix a couple of PMP bugs
2022-05-24 19:57:45 +01:00
Luke Wren
d62861159f
First pass at U-mode CSR support. Bizarrely causes CXXRTL tb to not write to stdout when invoked by subprocess.run from Python.
2022-05-24 16:17:54 +01:00
Luke Wren
c0b5d73cbd
Typo in for loop, surprised Yosys accepted this
2022-05-23 18:15:36 +01:00
Luke Wren
5466c8131e
Sketch in PMP implementation
2022-05-23 18:06:23 +01:00