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1014 Commits

Author SHA1 Message Date
bbracker
8462f248aa Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-20 00:40:44 -04:00
bbracker
d62d9a7aac make buildroot waves only turn on after a user-specified point 2021-06-20 00:39:30 -04:00
Ross Thompson
70c45a5349 Revert "Icache now uses physical lenght bits rather than XLEN." 
This reverts commit 16266d978a.
 2021-06-19 08:58:34 -05:00
Ross Thompson
868ddce5f2 Revert "Improved some names in icache." 
This reverts commit a57c63aa7b.
 2021-06-19 08:58:32 -05:00
bbracker
a3eafc6e5b change buildroot config to use relative path for testvectors 2021-06-18 22:28:07 -04:00
bracker
26512348b0 gitignore merge 2021-06-18 21:12:05 -05:00
bracker
34f17b90ea handle tera usernames more gracefully 2021-06-18 21:11:14 -05:00
bbracker
1781ae9c93 on-Tera solution for sym linking to linux testvectors 2021-06-18 22:01:18 -04:00
bracker
cd7d403f92 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-18 20:41:01 -05:00
bracker
0addf4a297 script support for copying large files from tera 2021-06-18 20:40:19 -05:00
bbracker
cb949851d9 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-18 17:37:49 -04:00
bbracker
8d242d73b5 fixed PCtext error by using blocking assignments 2021-06-18 17:37:40 -04:00
Ross Thompson
99e3a0db28 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-18 12:24:42 -05:00
Ross Thompson
a57c63aa7b Improved some names in icache. 2021-06-18 12:22:41 -05:00
Ross Thompson
16266d978a Icache now uses physical lenght bits rather than XLEN. 2021-06-18 12:02:59 -05:00
David Harris
33312caeb1 Restored wally-busybear testbench now that graphical sim is working 2021-06-18 12:36:25 -04:00
bbracker
03a45aeef1 restore graphical buildroot sim 2021-06-18 11:58:16 -04:00
Abe
a0a4b09c94 Updated directory coremark_bare's wally-config file to define PMP_ENTRIES 2021-06-18 11:46:25 -04:00
bbracker
5095c73dde Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-18 09:49:37 -04:00
bbracker
4f50dd575d buildroot added to regression because it passes regression 2021-06-18 09:49:30 -04:00
David Harris
580ac1c4df Made MemPAdrM and related signals PA_BITS wide 2021-06-18 09:36:22 -04:00
David Harris
de221ff2d0 Changed physical addresses to PA_BITS in size in MMU and TLB 2021-06-18 09:11:31 -04:00
bbracker
c25905ac70 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-18 08:15:40 -04:00
bbracker
faae30c31c remove unused testbench-busybear.sv 2021-06-18 08:15:19 -04:00
David Harris
df7e373c69 Cleaned up PMAAccessFult logic but it still doesn't accomdate TIM and BootTim depending on AccessRWX 2021-06-18 08:13:15 -04:00
David Harris
35c74348a4 allow all size memory access in CLINT; added underscore to peripheral address symbols 2021-06-18 08:05:50 -04:00
David Harris
336936cc39 Cleaned up name of MTIME register in CSRC 2021-06-18 07:53:49 -04:00
David Harris
de3a0c644b Further cleaning of PMA checker 2021-06-17 22:27:39 -04:00
David Harris
679e507cc6 Added SUPPORTED to each peripheral in each config file 2021-06-17 21:36:32 -04:00
David Harris
54b6a2dcad added inputs to pmaadrdec 2021-06-17 18:54:39 -04:00
David Harris
da8eb7749f Started simplifying PMA checker 2021-06-17 16:28:06 -04:00
bbracker
2bee4eabab added MTIME and MTIMECMP as read-only CSRs; this likely is not the final version 2021-06-17 12:09:10 -04:00
bbracker
b65adbea63 enable TIME CSR for 32 bit mode as well 2021-06-17 11:34:16 -04:00
bbracker
5a661a7392 provide time and timeh CSRs based on CLINT's counter 2021-06-17 08:38:30 -04:00
bbracker
5b96f7fbd7 making linux waveforms more useful 2021-06-17 08:37:37 -04:00
bbracker
9bc5ddf5f2 PMPADDRreg size bugfix; PMPADDR_ARRAY_REGW[15] is now useable 2021-06-17 05:19:36 -04:00
bbracker
b459d0cc80 changed parsedCSRs2] to parsedCSRs 2021-06-17 05:18:14 -04:00
bbracker
c4983f4388 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-17 00:50:14 -04:00
bbracker
6625f74a85 still not sure if QEMU workaround is correct, but here is all linux progress so far 2021-06-17 00:50:02 -04:00
bbracker
7b98e7aa2f mcause test fixes and s-mode interrupt bugfix 2021-06-16 17:37:08 -04:00
bbracker
3b9ecc8275 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-16 16:17:53 -04:00
bracker
f99c91553f chmod +x'd privileged testgen scripts 2021-06-16 10:28:57 -05:00
bbracker
9c883054c7 fixed incorrect expectation fof CLINT spec 2021-06-15 19:24:24 -04:00
bbracker
cd00e04943 Merge remote-tracking branch 'origin/fixPrivTests' into main 2021-06-15 09:57:46 -04:00
Katherine Parry
4177f4f148 Updated FMA 2021-06-14 13:42:53 -04:00
David Harris
c6ff11c22e disabled Verilator WIDTH warnings in ICCacheCntrl 2021-06-12 19:50:06 -04:00
Ross Thompson
294f01cbd8 fixed the mtime register. 2021-06-11 13:50:13 -05:00
James E. Stine
11c88c15d5 Put repository of fpdivsqrt with RTL-based adder instead of structural implementation 2021-06-11 14:35:22 -04:00
bracker
8794bf1afa attempt no 1: just change out x28s for x31s 2021-06-11 12:39:28 -05:00
David Harris
49b5fa3994 Reverted MIDELEG and MEDELEG to XLEN so busybear passes 2021-06-10 23:47:32 -04:00
David Harris
e41a87be23 Restored counter events 2021-06-10 11:18:58 -04:00
David Harris
d386929c0e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-10 10:47:55 -04:00
David Harris
802238643a Removed two cycles of latency from the DTIM 2021-06-10 10:30:24 -04:00
bbracker
f272cd46d8 peripheral lint fixes 2021-06-10 10:19:10 -04:00
bbracker
d4aeb1c387 merge 2021-06-10 10:03:01 -04:00
bbracker
0321d74562 attempt to fix regression by adding PMP_ENTRIES to configs 2021-06-10 09:59:26 -04:00
bbracker
d9022551c2 buildroot progress -- able to mimic GDB output 2021-06-10 09:58:20 -04:00
bbracker
79e798a641 UART improved and added more reg read side effects 2021-06-10 09:53:48 -04:00
David Harris
3e8026dc21 Configurable number of performance counters 2021-06-10 09:41:26 -04:00
David Harris
75870a16d7 Restored PCCorrectE declaration in IFU 2021-06-09 21:09:16 -04:00
David Harris
0ffbd03139 More verilator fixes, but bpred is broken 2021-06-09 21:03:03 -04:00
David Harris
c7e57aeb1a removed verilator lint_off WIDTH 2021-06-09 21:01:44 -04:00
David Harris
01d6ca1e2a Fixed lint WIDTH errors 2021-06-09 20:58:20 -04:00
David Harris
2952550db7 More PMP entries 2021-06-08 15:33:06 -04:00
David Harris
90e5781471 Start to parameterize number of PMP Entries 2021-06-08 15:29:22 -04:00
Kip Macsai-Goren
a95a7a7b82 working version with new mmu comments, old boottim values 2021-06-08 15:20:25 -04:00
Kip Macsai-Goren
2155cb2e91 merge of reverted main into up to date main 2021-06-08 14:57:43 -04:00
Kip Macsai-Goren
361c71c5e9 reverted to working version with new mmu comments 2021-06-08 14:56:00 -04:00
David Harris
b613f46c2d Resized BOOT TIM to 1 KB 2021-06-08 14:04:32 -04:00
Kip Macsai-Goren
aab7bd94f7 Merge small mmu changes into main 2021-06-08 14:00:26 -04:00
Kip Macsai-Goren
d6f47d5917 making mmu branch line up with main 2021-06-08 13:59:03 -04:00
Kip Macsai-Goren
e209dbcf50 some cleanup of signals, not done yet 2021-06-08 13:39:32 -04:00
bbracker
cc91c774a6 Ah big ole merge! Passes sim-wally-batch and linting, so should be fine 2021-06-08 12:41:25 -04:00
bbracker
e7e4105931 * GPIO comprehensive testing 
* MEPC more aware if M stage has actually committed
* UART interrupt testing progress
* UART added read IIR side effect of lowering THRE intr
 2021-06-08 12:32:46 -04:00
Kip Macsai-Goren
49515245d9 remove redundant decodes, fixed mmu logic ins/outs 2021-06-07 19:23:30 -04:00
Kip Macsai-Goren
1e174a8244 got rid of some underscores in filenames, modules 2021-06-07 18:54:05 -04:00
Kip Macsai-Goren
c96695b1b6 implemented simpler page mixers, cleaned up a bit 2021-06-07 18:32:34 -04:00
Kip Macsai-Goren
b27abc53e8 began updating cam line to reduce muxes, confusion 2021-06-07 17:03:31 -04:00
Kip Macsai-Goren
6a63ad04d2 regression working partially done page mask 2021-06-07 17:02:31 -04:00
David Harris
9efbffdee5 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-07 16:14:13 -04:00
David Harris
43a690dc42 Simplified superpage matching 2021-06-07 16:11:28 -04:00
Katherine Parry
0acf665a8b lint is clean 2021-06-07 14:22:54 -04:00
bbracker
28c6d60150 temporarily removing buildroot from regression until it is regenerated 2021-06-07 13:20:50 -04:00
David Harris
2ae5ca19b5 Continued merge 2021-06-07 12:49:47 -04:00
David Harris
ff62000e2c Second attept to commit refactoring config files 2021-06-07 12:37:46 -04:00
David Harris
dc0b19dfaa Merge difficulties 2021-06-07 09:50:23 -04:00
David Harris
d5ec797ba4 Refactored configuration files and renamed testbench-busybear to testbench-linux 2021-06-07 09:46:52 -04:00
Katherine Parry
75a6097467 fixed lint warnings for fpu and lzd 2021-06-05 12:06:33 -04:00
Kip Macsai-Goren
49200bd922 Cleaned up some unused signals 2021-06-04 21:04:19 -04:00
Kip Macsai-Goren
22e8e06ac7 moved privilege dfinitions into wally-constants, upgraded relevant includes 2021-06-04 17:55:07 -04:00
Kip Macsai-Goren
037aa6fa89 Merge branch 'mmu' into main 
new mmu unit and moving pmp/pma now passes regression except for lint and buildroot
 2021-06-04 17:07:56 -04:00
Kip Macsai-Goren
3493027bf5 added shared constants file list of includes 2021-06-04 17:05:47 -04:00
Kip Macsai-Goren
1ae529c450 restructured so that pma/pmp are a part of mmu 2021-06-04 17:05:07 -04:00
Ross Thompson
41a1e6112a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-04 15:16:39 -05:00
Ross Thompson
7406e33b61 Continued I-Cache cleanup. 
Removed strange mux on InstrRawD along with
the select logic.
 2021-06-04 15:14:05 -05:00
Ross Thompson
191f7e61fd Moved I-Cache offset selection mux to icache.sv (top level). 
When we switch to set associative this is will be more efficient.
 2021-06-04 13:49:33 -05:00
Ross Thompson
e0d0fdd708 Cleaned up the I-Cache memory. 2021-06-04 13:36:06 -05:00
Katherine Parry
fc65aedbd6 Double-precision FMA instructions 2021-06-04 14:00:11 -04:00
Ross Thompson
fdef8df76b Reorganized the icache names. 2021-06-04 12:53:42 -05:00
Ross Thompson
7c44f19925 Relocated the icache to the cache directoy. 2021-06-04 12:23:46 -05:00
David Harris
a26bf37be8 Started MMU 2021-06-04 11:59:14 -04:00
David Harris
4f71964529 Fixed RV32 MMU constants 2021-06-04 09:15:42 -04:00
David Harris
0674f5506e moved shared constants to a shared directory 2021-06-03 22:41:30 -04:00
Kip Macsai-Goren
8fb2ee6e86 added support for sv48 and some docs on how to use these files 2021-06-03 14:32:12 -04:00
Kip Macsai-Goren
1ea9b94cf1 added tests for SV48 and translation off with vmem 2021-06-03 14:28:52 -04:00
bbracker
ad3b103a86 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-03 10:03:26 -04:00
bbracker
4e765ee1c5 expanded GPIO testing and caught small GPIO bug 2021-06-03 10:03:09 -04:00
Ross Thompson
e50a1ef5e4 Fixed a few lint errors, 
clock gater was wrong,
missing signal definitions in branch predictor.
 2021-06-02 09:33:24 -05:00
bbracker
a683dd7fde Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-02 10:03:23 -04:00
bbracker
2c77a13c08 fixed InstrValid signals and implemented less costly MEPC loading 2021-06-02 10:03:19 -04:00
Kip Macsai-Goren
5187574e8a implemented Sv48. 2021-06-01 17:50:37 -04:00
Kip Macsai-Goren
40cfa86935 Edited and added constants to support SV48 2021-06-01 17:49:45 -04:00
James E. Stine
eba7ce64f5 delete div.bak 2021-06-01 17:39:54 -04:00
Ross Thompson
babcea195a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-01 15:20:37 -05:00
Ross Thompson
0670c57fd2 The clock gater was not implemented correctly. Now it is level sensitive to a low clock. 2021-06-01 15:05:22 -05:00
James E. Stine
564d7c4adb Minor cosmetic update to fpu.sv 2021-06-01 15:45:32 -04:00
James E. Stine
2eeb12c674 Updates to muldiv.sv for 32-bit div/rem 2021-06-01 15:31:07 -04:00
Ross Thompson
fe22fd2db8 added clock gater to floating point divider to speed up simulation time. 2021-06-01 13:46:21 -05:00
Ross Thompson
7f1653f073 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-01 12:42:21 -05:00
Ross Thompson
997c13a521 Forgot to include the new gshare predictor file. 2021-06-01 12:42:03 -05:00
Kip Macsai-Goren
fac2431add Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-06-01 13:20:39 -04:00
Ross Thompson
ab509614bb Changed to bp config to use gshare. 2021-06-01 12:14:58 -05:00
Ross Thompson
89ad4477e4 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-06-01 11:33:12 -05:00
Ross Thompson
857f59ab5c Now have global history working correctly. 2021-06-01 10:57:43 -05:00
James E. Stine
ddbdd0d5a2 Modify muldiv.sv to handle W instructions for 64-bits 2021-05-31 23:27:42 -04:00
Ross Thompson
f6c88666cf may have fixed the global branch history predictor. 
The solution required a completed rewrite and understanding of how the GHR needs to be speculatively updated and repaired.
 2021-05-31 16:11:12 -05:00
Kip Macsai-Goren
0fe63282f8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-31 11:01:15 -04:00
James E. Stine
46a232b862 Cosmetic changes on integer divider 2021-05-31 09:16:30 -04:00
James E. Stine
9954d16fc9 Add enhancements to integer divider including: 
- better comments
  - optimize FSM to end earlier
  - passes for 32-bit or 64-bit depending on parameter to intdiv

Left div.bak in just in case have to revert back to original for now.
 2021-05-31 09:12:21 -04:00
James E. Stine
12c34c25f3 Modify elements of generics for LZD and shifter wrote for integer 
divider.
 2021-05-31 08:36:19 -04:00
bbracker
39ae743543 turns out I should not have tried renaming FStallD to FPUStallD because that name was already used! All the same it does feel weird to have two such signals floating around \(ah pun!\) 2021-05-28 23:11:37 -04:00
Kip Macsai-Goren
690815ca51 made priority encoder parameterizable 2021-05-28 18:09:28 -04:00
Ross Thompson
8a035104ac It's a bit sloppy, but the global history predictor is working correctly now. 
There were two major bugs with the predictor.
First the update mechanism was completely wrong.  The PHT is updated with the GHR that was used to lookup the prediction.  PHT[GHR] = Sat2(PHT[GHR], branch outcome).
Second the GHR needs to be updated speculatively as the branch is predicted.  This is important so that back to back branches' GHRs are not the same.  The must be different to avoid aliasing.  Speculation of the GHR update allows them to be different.  On mis prediction the GHR must be reverted.
This implementation is a bit sloppy with names and now the GHR recovery is performed.  Updates to follow.
 2021-05-27 23:06:28 -05:00
Katherine Parry
778ba6bbf5 classify unit created and passes imperas tests 2021-05-27 18:53:55 -04:00
Katherine Parry
1459d840ed All compare instructions pass imperas tests 2021-05-27 15:23:28 -04:00
Katherine Parry
309e6c3dc1 FADD and FSUB imperas tests pass 2021-05-26 12:33:33 -04:00
James E. Stine
bb99480fca delete old file for FPregfile 2021-05-26 09:13:09 -05:00
James E. Stine
77260643eb Add regression test for fpadd 2021-05-26 09:12:37 -05:00
Katherine Parry
e7190b0690 renamed top level FPU wires 2021-05-25 20:04:34 -04:00
Kip Macsai-Goren
45e7628e90 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-25 15:28:19 -04:00
Ross Thompson
fec40a1b75 fixed bug with icache miss spill fsm branch. 2021-05-25 14:26:22 -05:00
James E. Stine
bb5404e14a Update FPregfile to use more compact code and better structure for ease in reading 2021-05-25 13:21:59 -05:00
Ross Thompson
063e458ff0 Merge remote-tracking branch 'refs/remotes/origin/main' into main 2021-05-24 23:25:36 -05:00
Ross Thompson
16e037b8e9 Fixed bug in the two bit sat counter branch predictor. The SRAM needs to be read enabled by StallF. 2021-05-24 23:24:54 -05:00
Kip Macsai-Goren
8ae43a15d4 partially complete MSTATUS test of sd, xs, fs, mie, mpp, mpie, sie, spie bitfields 2021-05-24 20:59:26 -04:00
James E. Stine
c4f3f2f783 Minor cosmetic elements on div.sv 2021-05-24 19:30:28 -05:00
James E. Stine
295263e122 Mod for DIV/REM instruction and update to div.sv unit 2021-05-24 19:29:13 -05:00
bbracker
f755827c90 slightly more path independence for using verilator 2021-05-24 18:11:56 -04:00
Ross Thompson
c5310e85c1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-24 14:28:41 -05:00
Katherine Parry
90d5fdba04 FMV.X.D imperas test passes 2021-05-24 14:44:30 -04:00