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Author SHA1 Message Date
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
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
David Harris
deae60eb1d TLB cleanup 2021-07-04 14:59:04 -04:00
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
243c03f870 TLB cleanup 2021-07-04 14:37:53 -04:00
David Harris
1ae58b3ba3 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 14:31:01 -04:00
David Harris
fed096407b TLB minor organization 2021-07-04 14:30:56 -04:00
bbracker
834c10c58c Revert "Make Wally take InstrPageFaultF traps" 
This reverts commit 7a810357d7.
 2021-07-04 13:31:30 -04:00