Commit Graph

124 Commits

Author SHA1 Message Date
David Harris
f806707cb0 Array of muxes in tlbmixer; abbreviated PPN and VPN to match diagram 2021-07-08 16:58:11 -04:00
David Harris
b1592a0542 TLB cleanup to match diagrams 2021-07-08 16:52:06 -04:00
David Harris
dc44ca4b0b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-07 06:32:29 -04:00
David Harris
6dc49dd073 Renamed tlb ReadLines to Matches 2021-07-07 06:32:26 -04:00
Abe
244e197348 Changed SvMode to SVMode on line 76 2021-07-06 23:28:58 -04:00
David Harris
1301f4df7f Added ASID matching for CAM 2021-07-06 18:56:25 -04:00
Kip Macsai-Goren
1652e09b38 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-06 18:54:41 -04:00
David Harris
2b26bbbbd7 more TLB name touchups 2021-07-06 18:39:30 -04:00
Kip Macsai-Goren
8dfa28125f fixed upper bits page fault signal 2021-07-06 18:32:47 -04:00
David Harris
73024fee2d connected signals in tlb by name instead of .* 2021-07-06 17:22:10 -04:00
David Harris
18f4fa600a changed tlbphysicalpagemask to structural 2021-07-06 17:16:58 -04:00
David Harris
404ba5988a changed tlbphysicalpagemask to structural 2021-07-06 17:08:04 -04:00
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
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
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
David Harris
69c0358ffd Created tlbcontrol module to hide details 2021-07-06 03:25:11 -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
David Harris
57e1111df3 Gave names to for loops in generate blocks for ease of reference 2021-07-04 18:52:16 -04:00
David Harris
cc04009f82 Touched up TLB D and A bit checks 2021-07-04 18:17:09 -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
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
Ross Thompson
8e48865140 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-04 16:19:39 -05:00
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
David Harris
deae60eb1d TLB cleanup 2021-07-04 14:59:04 -04:00
David Harris
243c03f870 TLB cleanup 2021-07-04 14:37:53 -04:00
David Harris
fed096407b TLB minor organization 2021-07-04 14:30:56 -04:00
David Harris
a5c0dc8c81 Fixed MPRV and MXR checks in TLB 2021-07-04 13:20:29 -04:00
David Harris
5b891e05ac TLB mux and swizzling cleanup 2021-07-04 12:53:52 -04:00
David Harris
622060b99f Replaced generates with arrays in TLB 2021-07-04 12:32:27 -04:00
David Harris
b5df9b282d Added support for PMP lock bits in csrm and repartitioned design to pass around 8-bit PMPCFG entries 2021-07-04 11:39:59 -04:00
David Harris
9276446797 Switched to array notation for pmpchecker 2021-07-04 10:51:56 -04:00
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
Ross Thompson
9b959715a0 removed mmustall and finished port annotations on ptw and lsuArb. 2021-07-03 16:06:09 -05:00
David Harris
ee605d7550 Changed IMMU ExecuteAccessF to 1 rather than InstrReadF to fix buildroot; simplified PMP checker 2021-07-03 03:29:33 -04:00
David Harris
d3dedc1637 Cleaned up PMA/PMP checker unused code 2021-07-03 02:25:31 -04:00
Ross Thompson
16e672ada0 Fixed up the physical address generation for 64 bit page table walker. 2021-07-02 15:49:32 -05:00
Ross Thompson
a8fbbb0631 Fixed up the bit widths on the page table walker for rv32. 2021-07-02 15:45:05 -05:00
Ross Thompson
46831035fb Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-02 13:56:49 -05:00
David Harris
648c09e5ef Optimized PMP checker logic and added support for configurable number of PMP registers 2021-07-02 11:04:13 -04:00