Commit Graph

292 Commits

Author SHA1 Message Date
Ross Thompson
17dc488010 Got the shadow ram cache flush working. 2021-07-13 10:03:47 -05:00
Ross Thompson
9fe6190763 Team work on solving the dcache data inconsistency problem. 2021-07-12 23:46:32 -05:00
Ross Thompson
8ca8b9075d Progress towards the test bench flush. 2021-07-12 14:22:13 -05:00
Ross Thompson
a82c4c99c2 Actually writes the correct data now on stores. 2021-07-10 17:48:47 -05:00
Ross Thompson
71a23626d5 Fixed bug in the LSU pagetable walker interlock. 2021-07-06 10:41:36 -05:00
Ross Thompson
59913e13aa Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-05 16:07:27 -05:00
David Harris
e65fb5bb35 Added F_SUPPORTED flag to disable floating point unit when not in MISA 2021-07-05 10:30:46 -04:00
Ross Thompson
f2c4df0a5b Removed the TranslationVAdrQ as it is not necessary. 2021-07-04 16:49:34 -05:00
Ross Thompson
8e48865140 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:19:39 -05:00
Ross Thompson
8ae0a5bd7d relocated lsuarb and pagetable walker inside the lsu. Does not pass busybear or buildroot, but passes rv32ic and rv64ic. 2021-07-04 13:49:38 -05:00
David Harris
c897bef8cd Moved BOOTTIM to 0x1000-0x1FFF. Added logic to detect an access to undefined memory and assert HREADY so bus doesn't hang. 2021-07-04 01:19:38 -04:00
Ben Bracker
9709bd78e1 stop busybear from hanging 2021-07-02 17:22:09 -05:00
Ross Thompson
549b7b2a62 Merge branch 'main' into bigbadbranch 2021-07-02 11:52:26 -05:00
Ross Thompson
3dae02818c OMG. It's working! 2021-07-01 17:37:53 -05:00
Ross Thompson
c3eaa3169e Fixed the wrong virtual address write into the dtlb. 2021-07-01 16:55:16 -05:00
Ross Thompson
9d9415ea67 Got some stores working in virtual memory. 2021-07-01 12:49:09 -05:00
Ross Thompson
4530e43df6 The icache ptw interlock is actually correct now. There needed to be a 1 cycle delay. 2021-06-30 17:02:36 -05:00
Ross Thompson
07a0b66fdf Major rewrite of ptw to remove combo loop. 2021-06-30 16:25:03 -05:00
Ross Thompson
b31e0afc2a The icache now correctly interlocks with the PTW on TLB miss. 2021-06-30 11:24:26 -05:00
Ross Thompson
2598f08782 Page table walker now walks the table.
Added interlock so the icache stalls.
Page table walker not walking correctly, goes to fault state.
2021-06-29 22:33:57 -05:00
Ross Thompson
ae6140bd94 Don't use this branch walker still broken. 2021-06-28 17:26:11 -05:00
Ross Thompson
8dfbf60b67 AMO and LR/SC instructions now working correctly.
Page table walking is not working.
2021-06-25 15:42:07 -05:00
Ross Thompson
9fd1761fd6 Working through a combo loop. 2021-06-25 14:49:27 -05:00
Ross Thompson
17636b3293 Regression test runs further. The LSU state machine which fakes the Dcache had a few bugs. MemAccessM needed to be squashed on bus faults. 2021-06-25 11:05:17 -05:00
bbracker
9927f771cc linux testbench now ignores HWRITE glitches caused by flush glitches 2021-06-25 09:28:52 -04:00
Ross Thompson
d8183e59e4 Works until pma checker breaks the simulation by reading HADDR rather than data physical address. 2021-06-24 14:42:59 -05:00
bbracker
3d6b422e34 regression can overcome the fact that buildroots UART prints stuff 2021-06-24 02:00:01 -04:00
bbracker
409a73604c whoops meant to remove notifications from busybear, not buildroot 2021-06-24 01:54:46 -04:00
bbracker
b84419ff4e overhauled linux testbench and spoofed MTTIME interrupt 2021-06-24 01:42:35 -04:00
David Harris
718630c378 Reduced complexity of pmpadrdec 2021-06-23 03:03:52 -04:00
bbracker
56b0d4d016 added slack notifier for long sims 2021-06-22 08:31:41 -04:00
bbracker
1f2a967e0f read from MSTATUS workaround because QEMU has incorrect MSTATUS 2021-06-20 10:11:39 -04:00
bbracker
6e9c6e3e6a whoops wavedo typo 2021-06-20 05:36:54 -04:00
bbracker
9469367da3 make buildroot ignore SSTATUS because QEMU did not originally log it 2021-06-20 05:31:24 -04:00
bbracker
52fb630379 remove lingering busybear stuff from buildroot do files 2021-06-20 00:50:53 -04:00
bbracker
3e32ba3684 make buildroot waves only turn on after a user-specified point 2021-06-20 00:39:30 -04:00
David Harris
43bc17350b Restored wally-busybear testbench now that graphical sim is working 2021-06-18 12:36:25 -04:00
bbracker
72f1e3eab6 buildroot added to regression because it passes regression 2021-06-18 09:49:30 -04:00
David Harris
e03912f64c Cleaned up name of MTIME register in CSRC 2021-06-18 07:53:49 -04:00
bbracker
832e4fc7e3 making linux waveforms more useful 2021-06-17 08:37:37 -04:00
bbracker
3e11da2aa2 temporarily removing buildroot from regression until it is regenerated 2021-06-07 13:20:50 -04:00
David Harris
95cc70295b Merge difficulties 2021-06-07 09:50:23 -04:00
David Harris
8bbabb683d Refactored configuration files and renamed testbench-busybear to testbench-linux 2021-06-07 09:46:52 -04:00
Ross Thompson
6f58c66be8 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-04 15:16:39 -05:00
Ross Thompson
e200b4b5a4 Continued I-Cache cleanup.
Removed strange mux on InstrRawD along with
the select logic.
2021-06-04 15:14:05 -05:00
Ross Thompson
35afdecda2 Moved I-Cache offset selection mux to icache.sv (top level).
When we switch to set associative this is will be more efficient.
2021-06-04 13:49:33 -05:00
Katherine Parry
19116ed889 Double-precision FMA instructions 2021-06-04 14:00:11 -04:00
Ross Thompson
2c16591396 Reorganized the icache names. 2021-06-04 12:53:42 -05:00
David Harris
a61411995a moved shared constants to a shared directory 2021-06-03 22:41:30 -04:00
bbracker
8338b3bd34 expanded GPIO testing and caught small GPIO bug 2021-06-03 10:03:09 -04:00