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Author SHA1 Message Date
David Harris
6b9cfe90d8 Added ASID & Global PTE handling to TLB CAM 2021-07-04 17:52:00 -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
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
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
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
bbracker
92337134f6 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-04 12:48:20 -04:00
bbracker
7a810357d7 Make Wally take InstrPageFaultF traps 2021-07-04 12:48:13 -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
c016ab8e58 Commented out some unused modules 2021-07-04 01:40:27 -04:00
David Harris
1bd353c1d7 Merge conflict on linux-waves.do 2021-07-04 01:22:10 -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
bbracker
17ef10568f optionally output GDB-formatted instruction list to main buildroot folder 2021-07-03 17:25:19 -04:00
Ben Bracker
66692af57c src/cache/ICacheCntrl.sv 2021-07-03 11:24:41 -05:00
Ben Bracker
d6c7dc02ed fix ICache indenting 2021-07-03 11:11:07 -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
Ben Bracker
9709bd78e1 stop busybear from hanging 2021-07-02 17:22:09 -05:00
David Harris
4ec570d2d7 Fixed PMPCFG read faults 2021-07-02 17:08:13 -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
Katherine Parry
4a6abe0f50 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-02 12:56:53 -04:00
Katherine Parry
72406b8a88 FPU update - missing files 2021-07-02 12:53:05 -04:00
Ross Thompson
549b7b2a62 Merge branch 'main' into bigbadbranch 2021-07-02 11:52:26 -05:00
David Harris
1ce98cc100 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-02 12:52:20 -04:00
Katherine Parry
3f61e313d2 FPU update 2021-07-02 12:40:58 -04:00
David Harris
cd6cabac2f Optimized PMP checker logic and added support for configurable number of PMP registers 2021-07-02 11:05:25 -04:00
David Harris
648c09e5ef Optimized PMP checker logic and added support for configurable number of PMP registers 2021-07-02 11:04:13 -04:00
Ross Thompson
2616f41f91 reverted change to the imperas tests order. Accidently commited change which placed the virtual memory tests first. 2021-07-01 18:04:43 -05:00
Ross Thompson
386193de00 added page table walker fault exit for icache. 2021-07-01 17:59:55 -05:00
Ross Thompson
3dae02818c OMG. It's working! 2021-07-01 17:37:53 -05:00
Ross Thompson
9139cd2954 Fixed tab space issue. 2021-07-01 17:17:53 -05:00
Ross Thompson
c3eaa3169e Fixed the wrong virtual address write into the dtlb. 2021-07-01 16:55:16 -05:00
Teo Ene
c7c4916efd Correct physical implementation flow path 2021-07-01 16:37:49 -05:00
Teo Ene
1d5d7a7840 Flow updated for 90nm 2021-07-01 13:32:42 -05:00
Ross Thompson
9d9415ea67 Got some stores working in virtual memory. 2021-07-01 12:49:09 -05:00
Ross Thompson
be6468c6d9 Icache ITLB interlock fix. 2021-06-30 19:24:59 -05:00
Ross Thompson
4530e43df6 The icache ptw interlock is actually correct now. There needed to be a 1 cycle delay. 2021-06-30 17:02:36 -05:00
Ross Thompson
07a0b66fdf Major rewrite of ptw to remove combo loop. 2021-06-30 16:25:03 -05:00
Ross Thompson
b31e0afc2a The icache now correctly interlocks with the PTW on TLB miss. 2021-06-30 11:24:26 -05:00
Ross Thompson
2598f08782 Page table walker now walks the table. 
Added interlock so the icache stalls.
Page table walker not walking correctly, goes to fault state.
 2021-06-29 22:33:57 -05:00
Katherine Parry
6216bd7172 FPU control signals changed and FMA works 2021-06-28 18:53:58 -04:00
Ross Thompson
ae6140bd94 Don't use this branch walker still broken. 2021-06-28 17:26:11 -05:00