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1317 Commits

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Author SHA1 Message Date
David Harris
78850bfcd8 MMU produces page fault when upper bits aren't equal. Renamed input to MMU to be 'Address' and moved translation mux into MMU out of TLB 2021-07-06 15:29:42 -04:00
Kip Macsai-Goren
794becd886 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-06 15:05:51 -04:00
Ross Thompson
dc4c26d2a2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-06 13:45:20 -05:00
Ross Thompson
d85bf23af3 Merged several of the load/store/instruction access faults inside the mmu. 
Still need to figure out what is wrong with the generation of load page fault when dtlb hit.
 2021-07-06 13:43:53 -05:00
bbracker
0e708a72f3 more completely uncomment MMU tests to make sim wally work 2021-07-06 14:33:52 -04:00
Kip Macsai-Goren
61fc9bb266 edited tests so regression would pass with float enabled. this IS NOT a comprehensive test for fs yet 2021-07-06 14:28:26 -04:00
Abe
79e62b7c53 Disabled MCOUNTINHIBIT to enable csr counters (changed to 32'h0 on line 140) 2021-07-06 12:37:58 -04:00
Ross Thompson
61f870809d Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-06 10:41:45 -05:00
Ross Thompson
71a23626d5 Fixed bug in the LSU pagetable walker interlock. 2021-07-06 10:41:36 -05:00
David Harris
6d25ea1508 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-06 10:44:17 -04:00
David Harris
4c2cbe3200 Cleaned up tlb output muxing 2021-07-06 10:44:05 -04:00
David Harris
087bed3b67 Replaced muxing of upper address bits with disregarding their match. Moved WriteEnables gate into tlblru to eliminate WriteLines 2021-07-06 10:38:30 -04:00
Kip Macsai-Goren
35f89f9e99 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-06 10:16:34 -04:00
David Harris
69c0358ffd Created tlbcontrol module to hide details 2021-07-06 03:25:11 -04:00
David Harris
6785ed9994 Implemented TSR, TW, TVM, MXR status bits 2021-07-06 01:32:05 -04:00
David Harris
3cb9e5acd3 Fixed adrdecs to use Access signals for TIMs 2021-07-05 23:42:58 -04:00
David Harris
a390736f26 Don't generate HPTW when MEM_VIRTMEM=0 2021-07-05 23:35:44 -04:00
David Harris
e3f6758265 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-05 23:23:17 -04:00
David Harris
8ca7abaa02 Added support for TVM flag in CSRS and to disabl TLB when MEM_VIRTMEM = 0 2021-07-05 20:35:31 -04:00
Ross Thompson
4d9b87a823 Fixed combo loop in the page table walker. 2021-07-05 16:37:26 -05:00
Ross Thompson
59913e13aa Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-05 16:07:27 -05:00
Kip Macsai-Goren
770420b448 added new mmu tests to makefrag and commented out in the testbench 2021-07-05 10:54:30 -04:00
Kip Macsai-Goren
331ee30881 added final mmu test that passes make. They still don't pass simulation. 2021-07-05 10:49:23 -04:00
Kip Macsai-Goren
8dc1f28a9c cleaned up comments, minor edits 2021-07-05 10:47:20 -04:00
Kip Macsai-Goren
61ab9de347 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-05 10:45:44 -04:00
David Harris
e65fb5bb35 Added F_SUPPORTED flag to disable floating point unit when not in MISA 2021-07-05 10:30:46 -04:00
David Harris
b8b7fab02b Fixed disabling MulDiv when not supported. Started adding generate for FPU unsupported 2021-07-04 19:33:46 -04:00
David Harris
bbbc1d2f89 Simplified PLIC with generate 2021-07-04 19:17:15 -04:00
David Harris
ce3edd0288 Renamed Funct3ToLSU/fromLSU -> SizeToLSU/FromLSU and simplified size muxing in lsuArb 2021-07-04 19:02:56 -04:00
David Harris
39fa84efdd Renamed Funct3ToLSU/fromLSU -> SizeToLSU/FromLSU and simplified size muxing in lsuArb 2021-07-04 18:56:30 -04:00
David Harris
d2e3e14cbc Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 18:55:24 -04:00
David Harris
57e1111df3 Gave names to for loops in generate blocks for ease of reference 2021-07-04 18:52:16 -04:00
bbracker
825900565c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 18:17:16 -04:00
David Harris
cc04009f82 Touched up TLB D and A bit checks 2021-07-04 18:17:09 -04:00
bbracker
11606e96f1 ICacheCntrl now reacts differently to InstrPageFaultF vs ITLBWriteF 2021-07-04 18:17:06 -04:00
Ross Thompson
058c37b5b1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 17:07:57 -05:00
David Harris
595df47a3e Fixed TLB_ENTRIES merge conflict and handling of global PTEs 2021-07-04 18:05:22 -04:00
Ross Thompson
e198f348da Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:54:31 -05:00
Ross Thompson
2c56e30c73 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:53:16 -05:00
David Harris
71268cc0e8 Added ASID & Global PTE handling to TLB CAM 2021-07-04 17:53:08 -04:00
David Harris
6b9cfe90d8 Added ASID & Global PTE handling to TLB CAM 2021-07-04 17:52:00 -04:00
Ross Thompson
f2c4df0a5b Removed the TranslationVAdrQ as it is not necessary. 2021-07-04 16:49:34 -05:00
bbracker
a20afc6e1a Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 17:20:55 -04:00
bbracker
96939328ea for GPIO give priority to clearing interrupts 2021-07-04 17:20:16 -04:00
Ross Thompson
031228fef1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:19:42 -05:00
Ross Thompson
8e48865140 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:19:39 -05:00
bbracker
aeaa912cab Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 17:15:40 -04:00
David Harris
d138d6545d Restructured TLB Read as AND-OR operation with one-hot match/read line 2021-07-04 17:01:22 -04:00
David Harris
b59213c83f Reorganized TLB to use one-hot read/write select signals to eliminate decoders and encoders 2021-07-04 16:33:13 -04:00
bbracker
322586189c comment out rv64 virtual memory test so that tests make successfully 2021-07-04 16:16:59 -04:00