David Harris
6372139af4
Removed comment about nonexistent possible bug
2022-11-14 09:56:33 -08:00
David Harris
06dbed92c8
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-14 09:52:24 -08:00
David Harris
f9202187ba
Removed comment about nonexistent possible bug
2022-11-14 09:52:21 -08:00
Ross Thompson
9d7ba19fe1
Changed IMWriteDataM to IHWriteDataM.
2022-11-13 12:27:48 -06:00
Ross Thompson
421c6f9c48
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
...
hazard was not a straight forward merge. I changed the way the LSU and IFU generate IFUStallF and LSUStallM. They need to be suppressed by TrapM now.
2022-11-13 12:25:22 -06:00
David Harris
879e62912b
HPTW cleanup
2022-11-13 04:23:23 -08:00
Ross Thompson
c028306ba3
Fixed name change in hptw.
2022-11-10 16:13:31 -06:00
Ross Thompson
40367eaf45
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-10 15:46:25 -06:00
Ross Thompson
be8e0eee1b
Removed TrapM from the LSU and IFU. TrapM is replaced with FlushW for both. (Don't like this for the IFU).
...
FlushW prevents writting the cache, dtim, and bus state. FlushW still gates HTRANS.
FlushW does not impact the mealy outputs of the cache and bus FSMs and hazard is updated to
not stall W if we get a trap.
2022-11-07 15:50:55 -06:00
David Harris
f7b94c12fc
Moved lsuvirtmem muxes into hptw
2022-11-07 11:13:34 -08:00
David Harris
60cfa0d69c
HPTW cleanup
2022-11-04 15:21:09 -07:00
Ross Thompson
51408c620e
Found a way to remove the interlock fsm. Dramatically reducing the complexity of virtual memory and page table walks.
2022-10-23 13:46:50 -05:00
Ross Thompson
cabcb5e89e
Modified the LSU and IFU to allow concurrent DTIM/DCACHE+BUS and IROM/ICACHE+BUS.
...
Don't use this commit as the rv32i tests are not passing.
2022-10-05 14:51:02 -05:00
Ross Thompson
122c88ee46
Created two new pma regions for dtim and irom.
2022-08-28 13:50:50 -05:00
Ross Thompson
5e63af5887
Reordered the adrdecs.
2022-08-28 13:38:57 -05:00
David Harris
f2517f8290
Preliminary work to make DTIM and Bus compatible. Not yet working because accesses to bus are causing illegal address faults on the bus.
2022-08-27 20:31:09 -07:00
David Harris
37f0b52520
Fixed address decoder hanging buildroot
2022-08-26 22:01:25 -07:00
David Harris
2b241f8bbd
Set bit width of DMEM/IROM_SUPPORTED and fixed address decoding
2022-08-26 21:18:18 -07:00
David Harris
03e731b3ff
Set correct size of IROM/DTIM and allow FLEN>XLEN with DTIM
2022-08-26 21:05:20 -07:00
David Harris
f0b4f69b65
Added IROM and DTIM decoding to adrdecs
2022-08-26 20:45:43 -07:00
Ross Thompson
769af32f2a
Renamed RAM to UNCORE_RAM.
2022-08-24 18:09:07 -05:00
Ross Thompson
20ba6fd19c
Reversed order of supported sized in adrdecs.
2022-08-23 11:14:53 -05:00
Ross Thompson
3b07584403
Updated the names of the *WriteDataM inside the LSU to more meaningful names.
...
Moved the FWriteDataMux so that the bus and dtim both get fpu stores.
Modified the PMA to disallow double sized reads when XLEN=32.
2022-08-23 10:34:39 -05:00
David Harris
ea153e0aad
Removed FStore2 and simplified HPTW
2022-08-22 13:29:54 -07:00
Madeleine Masser-Frye
b5454f3a55
took first match out of pmpadrdec
2022-07-06 00:02:01 +00:00
David Harris
fb725a9e0a
Clean up unused signals
2022-05-12 14:49:58 +00:00
David Harris
8372bc86a7
Removing unused signals
2022-05-12 14:36:15 +00:00
David Harris
8066ba45e8
Preliminary support for big endian modes. Regression passes but no big endian tests written yet.
2022-05-08 06:46:35 +00:00
Ross Thompson
dc48d84dd6
Modified clint to support all byte write sizes.
2022-03-31 11:31:52 -05:00
Ross Thompson
7a824eaae1
Found a way to remove a bus input into MMU. PAdr can be made into VAdr by selecting the faulting virtual address when writing the DTLB.
2022-03-24 23:47:28 -05:00
David Harris
f0a7ae2bba
adrdecs comments
2022-02-28 20:33:41 +00:00
David Harris
e108eb5195
Modified address decoder for native access to CLINT
2022-02-28 19:13:14 +00:00
David Harris
3519a20ccf
hptw cleanup for synthesis
2022-02-28 05:54:34 +00:00
Ross Thompson
2f711fb642
Changed HPTWRead/HPTWWrite to be HPTWRW to be similar to MemRW.
2022-02-21 16:54:38 -06:00
Ross Thompson
0c65ea96d8
Cleaned up names in lsuvirtmem.
2022-02-21 16:44:30 -06:00
Ross Thompson
56fc6d0d7c
Minor cleanup of lsu.
2022-02-21 12:46:06 -06:00
David Harris
20a5798f43
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2022-02-18 23:08:47 +00:00
David Harris
6a0ffff05d
Removed problematic warning about reaching default state in HPTW
2022-02-18 23:08:40 +00:00
Ross Thompson
6cd9d84e7f
New config option to enable hptw writes to PTE in memory to update Access and Dirty bits.
2022-02-17 17:19:41 -06:00
Ross Thompson
ad237b3ce5
Accidentally cleared dirty bit when setting access bit in hptw.
2022-02-17 16:20:20 -06:00
Ross Thompson
0eec096474
Rough implementation passing regression test with hptw atomic writes to memory.
2022-02-17 14:46:11 -06:00
Ross Thompson
2fc7dc3e57
Fixed a bunch of the virtual memory changes. Now supports atomic update of PTE in memory concurrent with TLB.
2022-02-17 10:04:18 -06:00
Ross Thompson
62f5f1e622
Broken state. address translation not working after changes to hptw to support atomic updates to PT.
2022-02-16 23:37:36 -06:00
David Harris
c23db6a31e
Cleaned warning on HPTW default state
2022-02-16 17:40:13 +00:00
David Harris
5ef8f6bc7e
Removed depricated N-mode support and SI/EDELEG registers. rv64gc_wally64priv tests are failing, but seem to be failing before this change.
2022-02-15 19:20:41 +00:00
David Harris
15fb7fee60
Cleaned up synthesis warnings
2022-02-11 01:15:16 +00:00
David Harris
9e0055cbb9
More config file cleanup; 32ic tests broken
2022-02-03 01:08:34 +00:00
Ross Thompson
1bb8d36308
Moved all instr/load/storeamo faults to mmu with the exception of instr misaligned fault.
2022-01-27 17:11:27 -06:00
David Harris
f7f3882cb8
Moved Dcache into bus block
2022-01-15 00:39:07 +00:00
Ross Thompson
4bcabd1a55
Removed unused inputs to hptw.
2022-01-13 11:04:48 -06:00
