Hardware/VexRiscv
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Author SHA1 Message Date
Dolu1990
e1e1be5797 exception code can now be bigger than 4 bits 2021-06-08 12:19:08 +02:00
Dolu1990
646911a373 Fix pmp write when there is hazard due to the register file. 2021-06-07 17:30:47 +02:00
Dolu1990
87f100dac1
Merge pull request #174 from lindemer/new_pmp 
New PMP plugin optimized for FPGAs
 2021-06-03 20:16:34 +02:00
Samuel Lindemer
156a84e76f Fix PMP FSM halting logic 2021-06-03 13:12:55 +02:00
Samuel Lindemer
342b06128f Combine all the PMP logic into one FSM 2021-06-02 17:12:10 +02:00
Samuel Lindemer
2a4ca0b249 PMP CSR writes occur in execute stage 2021-06-02 16:01:30 +02:00
Dolu1990
6cde5f9315 Better doc about iorange 2021-06-02 10:27:46 +02:00
Dolu1990
0272d66971 Fix CsrPlugin.redoInterface priority 2021-05-28 16:20:43 +02:00
Samuel Lindemer
3a4ab7ad51 Un-pend PMP CSR writes on pipeline flushes 2021-05-28 16:17:19 +02:00
Samuel Lindemer
4bdeb7731b Merge branch 'new_pmp' of github.com:lindemer/VexRiscv into new_pmp 2021-05-28 14:00:07 +02:00
Samuel Lindemer
243d0ec664 Clarify PMP section in README 2021-05-28 13:59:59 +02:00
Samuel Lindemer
d49f8d1b58
Merge branch 'dev' into new_pmp 2021-05-28 13:56:15 +02:00
Samuel Lindemer
24a534acff All tests passing on new PMP plugin 2021-05-28 13:54:55 +02:00
Dolu1990
4490254d3d Csr/Mmu ensure implement that SFENCE_VMA flush the next instructions 
SAT flush reworked a bit too
 2021-05-28 13:35:52 +02:00
Samuel Lindemer
4a2dc0ff5f Fix granularity control 2021-05-27 15:50:45 +02:00
Samuel Lindemer
6471014131 Simplify pmpcfg encoding 2021-05-27 14:34:51 +02:00
Dolu1990
4b0763b43d CsrPlugin.csrMapping now give names to inner signals 2021-05-27 10:40:55 +02:00
Samuel Lindemer
a5f66623b7 Add an "allow" property to individual CSRs 2021-05-26 16:34:51 +02:00
Samuel Lindemer
61f68f0729 Refactor for new CSR API (PMP reads still broken) 2021-05-26 15:29:27 +02:00
Dolu1990
6066d8bc26 CsrPlugin add API to implement CSR in a decoupled way. (very low level api) #174 2021-05-26 11:44:46 +02:00
Dolu1990
72328e7bc4 Arty now has RVC enabled ! 2021-05-25 15:59:02 +02:00
Dolu1990
1c3b9e93a2
Merge pull request #182 from rdolbeau/extra_config 
Make the [ID]TLB size configurable from Litex
 2021-05-12 13:54:27 +02:00
Dolu1990
fe739b907a Bench DecoderPlugin 2021-05-10 10:47:15 +02:00
Romain Dolbeau
1bd33a369e Make the [ID]TLB size configurable from Litex 2021-05-08 07:59:34 -04:00
Dolu1990
e78c0546a0 fix #178 2021-05-04 21:09:42 +02:00
Dolu1990
fa2899a1a2 Merge branch 'debugPlugin' into dev 2021-04-26 11:11:38 +02:00
Dolu1990
45e67ccf56 sync 2021-04-26 11:10:55 +02:00
Dolu1990
0a0998fcea #176 fix typo 2021-04-22 14:02:46 +02:00
Dolu1990
32e4ea406f update #176 when DebugPlugin ebreak are enabled it disable CsrPlugin ebreak. Also, DebugPlugin ebreak can be disabled via the debug bus. 2021-04-22 13:59:33 +02:00
Dolu1990
bfe65da1eb implement #176 DebugPlugin.allowEBreak is now disabled until the debug bus is used. 2021-04-20 23:23:18 +02:00
Samuel Lindemer
79bc09e69a Decouple PMP and CSR plugins 2021-04-13 08:35:07 +02:00
Dolu1990
4e41654a84 remove eclipse plugin 2021-04-12 18:28:41 +02:00
Samuel Lindemer
15137742fc
Merge branch 'dev' into new_pmp 2021-04-12 13:23:10 +02:00
Samuel Lindemer
9e65b769cf Update README.md 2021-04-12 13:20:15 +02:00
Samuel Lindemer
b41db0af93 Prevent PMP access from U-mode, fix tests 2021-04-12 13:20:15 +02:00
Samuel Lindemer
bf399cc927 Initial commit of optimized PMP plugin 2021-04-12 13:20:15 +02:00
Dolu1990
73893ce5d9 CfuPlugin names fixes 2021-04-02 09:20:26 +02:00
Dolu1990
a42c089119 IBusSimplePlugin ensure AHB persistance 2021-03-31 19:03:38 +02:00
Dolu1990
9ac6625ef3 FpuCore improve FMA rounding 2021-03-29 16:31:18 +02:00
Dolu1990
a8721b02de Add AES/FPU doc 2021-03-29 14:55:41 +02:00
Dolu1990
9462496386 Add rvc support and fix rvc with FPU 2021-03-25 14:14:19 +01:00
Dolu1990
6f481f51ef Fetcher.decompressor ensure that the decoded instruction do not mutate when the pipeline is stalled (fix FPU cmd fork for rvc without injector stage) 2021-03-25 14:13:12 +01:00
Dolu1990
21c91c6b70 fpu now lift wfi 2021-03-24 16:21:37 +01:00
Dolu1990
925edd160e RVC implement RVF RVD 
Rework RVC_GEN
 2021-03-24 12:04:27 +01:00
Dolu1990
704423f27f
Merge pull request #167 from rdolbeau/support_FDwC 
Attempt at supporting C (ompressed) and F/D (floating-point) together
 2021-03-24 11:59:05 +01:00
Romain Dolbeau
8495fe3dde Attempt at supporting C (ompressed) and F/D (floating-point) together 2021-03-24 11:07:09 +01:00
Dolu1990
da458dea7e litex cluster add cpuPerFpu option 2021-03-23 20:00:50 +01:00
Dolu1990
80f64f0f9f litex better pipelining for better fmax, create one FPU for each 4 cores 2021-03-18 11:10:22 +01:00
Dolu1990
6956db2b21 fpu add schedulerM2sPipe optino 2021-03-18 11:10:22 +01:00
Dolu1990
099dea743b fpu cleanup 2021-03-18 10:54:51 +01:00