Commit Graph

18 Commits

Author SHA1 Message Date
Ross Thompson
cc48cdc97b Imperas found a real bug in virtual memory.
If the instruction address spilled across two pages and the second page misses the TLB,
the HPTW received a tlb miss at the address of the first page rather than the second.
After the walk the TLB was updated with the PTE from the first page at the address of the
second page.

Example bug
Instruction PCF = 0x2ffe
First page in 0x2ffe and second page in 0x3000.
The second page misses the TLB and generates HPTW request at 0x2ffe rather than 0x3000.
TLB is updated with PTE from 0x2ffe at 0x3000.
2023-01-30 11:47:51 -06:00
Ross Thompson
caff6e788c Somehow the imperas files spilled into the main branch. 2023-01-17 15:39:34 -06:00
Ross Thompson
395b7a5b32 Nearly complete RVVI tracer.
Missing PMP registers and performance counters other than MCYCLE and MINSTRET.
2023-01-12 18:43:39 -06:00
Ross Thompson
ef4c684336 Added supervisor mode registers to tracer. 2023-01-12 17:04:41 -06:00
Ross Thompson
9917be817c Added M CSRs to the CSRArray. 2023-01-12 16:51:51 -06:00
Ross Thompson
a68773eba1 added machine csr to logger. 2023-01-12 16:35:19 -06:00
Ross Thompson
2e622c9860 Added support to print the gprs. 2023-01-12 16:09:30 -06:00
Ross Thompson
4733b787f8 rvvi trace is coming alone nicely. 2023-01-12 14:46:31 -06:00
David Harris
c3bca40e05 Added WFI to the testbench instruction name decoder 2022-04-14 17:12:11 +00:00
David Harris
f734afb866 Just needed to recompile - all good. Now removed uretM because N-mode is depricated 2022-02-15 19:48:49 +00:00
Ross Thompson
143bdaa288 Modified makefiles to generate function address to name mappings for modelsim. 2022-02-01 18:25:03 -06:00
Ross Thompson
f055441ecf Improved function_radix to not printout warnings when no valid function is found. 2022-02-01 18:03:09 -06:00
David Harris
07425369fc Renamed wallypipelinedhart to wallypipelinedcore 2022-01-20 16:02:08 +00:00
David Harris
bea6d0856d Testbench directory cleanup 2022-01-07 17:02:16 +00:00
David Harris
120fb7863f Reformatted MIT license to 95 characters 2022-01-07 12:58:40 +00:00
David Harris
85fa620cfb Finished removing generate statements 2022-01-05 16:41:17 +00:00
David Harris
08e6a10480 Removed imperas mmu tests; using wallypriv instead 2022-01-04 23:14:53 +00:00
David Harris
b36ace221e Renamed wally-pipelined to pipelined 2022-01-04 19:47:41 +00:00