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574 Commits 5 Branches 2 Tags 53 MiB
6ce4d44ae1
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267 Commits

Author SHA1 Message Date
Jarred Allen
6ce4d44ae1 Merge from branch 'main' 2021-04-08 17:19:34 -04:00
Katherine Parry
08f45eb076 fixed FPU lint warnings 2021-04-08 18:03:21 +00:00
Katherine Parry
ebf4915440 fixed FPU lint warnings 2021-04-08 17:55:25 +00:00
Domenico Ottolia
1bdfac6a77 Cause an Illegal Instruction Exception when attempting to write readonly CSRs 2021-04-08 05:12:54 -04:00
Thomas Fleming
bd310a55af Refactor TLB into multiple files 2021-04-08 03:24:10 -04:00
Thomas Fleming
b3795cef2e Provide attribution link for priority encoder 2021-04-08 03:05:06 -04:00
Thomas Fleming
e807f5d771 Implement support for superpages 2021-04-08 02:44:59 -04:00
bbracker
80a67dc906 declare memread signal 2021-04-05 08:13:01 -04:00
bbracker
eca92041e9 PLIC claim reg side effects now check for memread signal 2021-04-05 08:03:14 -04:00
bbracker
8f4da826fb plic subword access compliance 2021-04-04 23:10:33 -04:00
Katherine Parry
f41b5a2d38 Added missing files in FPU 2021-04-04 18:09:13 +00:00
bbracker
ce7b2314ef Yee hoo first draft of PLIC plus self-checking tests 2021-04-04 06:40:53 -04:00
Thomas Fleming
5946b860ca Comment out fpu from hart until module exists 2021-04-03 22:34:11 -04:00
Thomas Fleming
8f31e00f6a Merge branch 'mmu' into main 
Conflicts:
	wally-pipelined/src/wally/wallypipelinedhart.sv
 2021-04-03 22:12:52 -04:00
Thomas Fleming
ac89947e98 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-04-03 22:09:50 -04:00
Thomas Fleming
e04ad8f304 Fix extraneous page fault stall 2021-04-03 21:28:24 -04:00
Katherine Parry
08b31f7b2a Integrated FPU 2021-04-03 20:52:26 +00:00
Ross Thompson
a743acd1fd Partial fix to the integer divide stall issue. 2021-04-02 15:32:15 -05:00
James E. Stine
e38e7aff8e Minor cleanup 2021-04-02 08:20:44 -05:00
James E. Stine
9026357350 Added some updates to divider - still not working all the time. Still a bug with signals within muldiv - specificaly MultDivE being modified during Execute stage. Seems to be triggered by ahblite signal. 2021-04-02 06:27:37 -05:00
Thomas Fleming
14cf331265 Merge branch 'main' into mmu 2021-04-01 16:29:39 -04:00
Thomas Fleming
06032936bd Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-04-01 16:24:06 -04:00
Thomas Fleming
f9bf2fbc01 Implement sfence.vma and fix tlb writing 2021-04-01 15:55:05 -04:00
Jarred Allen
8dc57a7706 Begin changes to direct-mapped cache 2021-04-01 13:55:21 -04:00
James E. Stine
59dee5580c Fixed some divide -still bug in AHB causing InstStall to deassert and next instruction to get into divide unit. Hope to fix soon. Divide seems to work if given enough time. 2021-04-01 12:30:37 -05:00
Thomas Fleming
9388a9f28a Disable 'always-on' virtual memory 2021-03-30 22:49:47 -04:00
Thomas Fleming
e3d548d452 Merge remote-tracking branch 'origin/main' into main 
Bring icache and MMU code together

Conflicts:
	wally-pipelined/src/ifu/ifu.sv
	wally-pipelined/testbench/testbench-imperas.sv
 2021-03-30 22:24:47 -04:00
Thomas Fleming
4b2765f8e2 Complete basic page table walker 2021-03-30 22:19:27 -04:00
ushakya22
ba01d57767 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-30 15:25:07 -04:00
Jarred Allen
6cda818f09 Merge branch 'cache2' into cache 
Conflicts:
	wally-pipelined/testbench/testbench-imperas.sv
 2021-03-30 13:32:33 -04:00
Jarred Allen
85164c7a87 Merge branch 'main' into cache 
Conflicts:
	wally-pipelined/regression/wave-dos/ahb-waves.do
	wally-pipelined/src/ifu/ifu.sv
	wally-pipelined/testbench/testbench-busybear.sv
	wally-pipelined/testbench/testbench-imperas.sv
 2021-03-30 12:55:01 -04:00
Noah Boorstin
606295db2f Merge branch 'main' into cache 
Conflicts:
	wally-pipelined/testbench/testbench-busybear.sv
 2021-03-26 12:26:30 -04:00
Shreya Sanghai
edaf89e3d1 Merge branch 'PPA' into main 
Conflicts:
	wally-pipelined/testbench/testbench-privileged.sv
 2021-03-25 20:35:21 -04:00
Jarred Allen
c8a88757ab Fix error when reading an instruction that crosses a line boundary 2021-03-25 18:47:23 -04:00
ShreyaSanghai
da4086db79 Removed PCW and InstrW from ifu 2021-03-26 01:53:19 +05:30
Jarred Allen
7338ddf853 Remove old icache 2021-03-25 15:46:35 -04:00
Jarred Allen
fa6e6f1724 Works for misaligned instructions not on line boundaries 2021-03-25 15:42:17 -04:00
Jarred Allen
73d4dd8c15 Begin work on compressed instructions 2021-03-25 14:43:10 -04:00
Brett Mathis
aedc96cd04 FPU Pipeline completed - can begin integration 2021-03-25 13:29:03 -05:00
Jarred Allen
feabcf2d50 Make cache output NOP after a reset 2021-03-25 13:18:30 -04:00
Jarred Allen
fdecd6c56c Clean up some stuff 2021-03-25 13:04:54 -04:00
Jarred Allen
15e786da0b Working for all of rv64i now, but not compressed instructions 2021-03-25 13:02:26 -04:00
Jarred Allen
e8e4e1bee2 rv64i linear control flow now working 2021-03-25 13:02:26 -04:00
Jarred Allen
08f4ce4438 More progress on icache controller 2021-03-25 13:01:11 -04:00
Jarred Allen
fff70bccbc Begin rewrite of icache module to use a direct-mapped scheme 2021-03-25 13:01:10 -04:00
Jarred Allen
5a86225e1c Fix bug in cache line 2021-03-25 12:59:30 -04:00
Jarred Allen
abedaf62a8 Output NOP instead of BAD when reset 2021-03-25 12:42:48 -04:00
Jarred Allen
2f5d854f87 Merge branch 'main' into cache 
Conflicts:
	wally-pipelined/src/uncore/dtim.sv
 2021-03-25 12:10:26 -04:00
Thomas Fleming
89a2fe5741 Finish finite state machines for page table walker 2021-03-25 02:48:40 -04:00
Thomas Fleming
4f01aae844 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-25 02:35:21 -04:00