115 Commits

Author	SHA1	Message	Date
Ross Thompson	2c86badeb2	pipelining of fetch into evict AHB requests.	2022-09-13 17:51:55 -05:00
Ross Thompson	0904951a8c	Oups the ahbinterface.sv was accidentally named abhinterface.sv.	2022-09-08 13:21:37 -05:00
Ross Thompson	bc15f6c5e4	Added logic to make burst optional.	2022-09-06 09:21:21 -05:00
Ross Thompson	20643ffc4a	Names changes.	2022-09-05 20:49:35 -05:00
Ross Thompson	2554f96662	Cleaned up hacks to ram.	2022-09-04 14:52:40 -05:00
Ross Thompson	221367efb9	Disabled AHB burst mode, which discovered a bug. ... Multimanger bug in how back to back requests were arbitrated.	2022-09-03 22:31:41 -05:00
Ross Thompson	00cffb0aa5	Renamed state in buscachefsm to match AHB phases.	2022-09-02 17:17:40 -05:00
Ross Thompson	6f2acf678c	Renamed states in busfsm to match AHB phases and book names.	2022-09-02 17:12:36 -05:00
Ross Thompson	6f366c643d	Possible fix for AHB trailing ~HREADY bug.	2022-09-02 16:58:35 -05:00
Ross Thompson	eae56a890c	marked possible improvement to ahb bus fsms.	2022-08-31 23:57:08 -05:00
Ross Thompson	7598fbcb3b	Reduced busfsm to 3 states!	2022-08-31 16:11:59 -05:00
Ross Thompson	6f3dad8207	Simplified.	2022-08-31 15:40:56 -05:00
Ross Thompson	12d1ef2144	More renaming.	2022-08-31 14:49:08 -05:00
Ross Thompson	c03b202ab0	Moved files. ... Encapsulated ahbinterface.	2022-08-31 14:45:01 -05:00
Ross Thompson	1b339f0547	Moved files around.	2022-08-31 14:08:06 -05:00
Ross Thompson	0d3f03ac06	Major cleanup of multimanager.	2022-08-31 12:40:25 -05:00
Ross Thompson	77cc549cfa	Cleanup multimanager.	2022-08-31 12:04:44 -05:00
Ross Thompson	eaa9cbda46	cleanup of multimanager.	2022-08-31 11:38:06 -05:00
Ross Thompson	315f662eb9	More progress.	2022-08-30 15:27:19 -05:00
Ross Thompson	8cf3c7b352	new cache bus fsm not working but lints. ... Forgot a few files in the last commit.	2022-08-30 10:58:07 -05:00
Ross Thompson	233777f744	Part way through the updated bus fsm for direct AHB in lsu/ifu + multi-manager.	2022-08-29 13:01:24 -05:00
David Harris	5340c45dfc	Separated busdp for cache from simpler logic for no cache	2022-08-25 17:54:04 -07:00
David Harris	9a92bfe095	Simplified swbytemask	2022-08-25 17:32:16 -07:00
David Harris	902d2067ba	Removed delayed AHB signals from top level	2022-08-25 15:34:14 -07:00
David Harris	302a7fa294	Extended HADDR to PA_BITS	2022-08-25 13:11:36 -07:00
David Harris	07225cabb7	Fixed brom name	2022-08-25 12:48:00 -07:00
David Harris	1226b2889e	ahblite cleanup	2022-08-25 12:44:25 -07:00
David Harris	3ba961d1a8	renamed BusBuffer to FetchBuffer	2022-08-25 10:44:39 -07:00
David Harris	dda3b441d7	Continued busdp/ebu simplification	2022-08-25 10:20:02 -07:00
David Harris	aba914ea5e	Renamed AHB signals coming out of LSU to LSH_<AHBNAME>	2022-08-25 09:52:08 -07:00
David Harris	c789b5789c	renamed GrantData to LSUGrant	2022-08-22 13:47:19 -07:00
Ross Thompson	57fcf0ef79	Fixed fstore2 in cache?	2022-08-01 22:04:44 -05:00
Ross Thompson	797d9e3610	Replaced swbytemask with swbytemaskword (1 liner). Credit to David Harris.	2022-08-01 21:12:25 -05:00
Ross Thompson	3612db2d70	pulled swbbytemask out of subword write.	2022-08-01 20:48:45 -05:00
David Harris	5ae88dbef0	Moved HWSTRB to ahblite, factored out of peripherals. Moved old AHB peripherals to unusedsrc	2022-07-08 09:09:02 +00:00
David Harris	72e216d053	APB CLINT passing regression	2022-07-05 15:51:35 +00:00
David Harris	abfd935e06	removed delay in ahblite	2022-07-05 04:59:28 +00:00
slmnemo	a79737e95b	Removed irrelevant comments in ahblite and made it more clear when to use certain transmission signals	2022-06-10 20:43:56 -07:00
slmnemo	5ac17eca1d	Passed Regression: Seems to work perfectly fine	2022-06-09 18:21:13 -07:00
slmnemo	a4c7d1d936	?	2022-06-09 17:50:47 -07:00
slmnemo	c4bc608268	Changes made on 9th Jun	2022-06-09 17:33:51 -07:00
slmnemo	1605544bfc	Fixed error related to bus being unable to complete a line write after a memory read followed by an idle and cachewrite request.	2022-06-08 17:34:02 -07:00
slmnemo	655266a216	Fixed error where MEMREAD would go into INSTRREAD even when no INSTRREAD was pending	2022-06-08 15:59:15 -07:00
slmnemo	a64e65e54c	Fixed ifu displaying LSU bus state in wave.do	2022-06-08 15:30:32 -07:00
slmnemo	dd33f2a009	Working version: Fixed error where Word count would always increment even without AHB to bus ACK	2022-06-08 15:29:32 -07:00
slmnemo	be658d3933	Reworked AHB fsm to support one cycle latency read and writes, renamed key signals to better reflect their use, and fixed HTRANS errors	2022-06-08 15:03:15 -07:00
slmnemo	1d22fc707a	Added lock signal to ensure AHB speaks with the right bus	2022-06-08 02:19:21 +00:00
slmnemo	90c5e5d319	Reworked bus to handle burst interfacing	2022-06-07 11:22:53 +00:00
slmnemo	56121b3587	Added signals to change HTRANS to the correct signal based on schematic as well as a way to tell if we are not on the first access	2022-05-31 16:33:05 -07:00
slmnemo	2b80788235	Merge branch 'cacheburstmode' of github.com:davidharrishmc/riscv-wally into cacheburstmode	2022-05-31 15:57:55 -07:00
slmnemo	c24f88c2e9	Redid the FSM to prepare for burst mode implementation	2022-05-31 15:57:42 -07:00
slmnemo	f426850bc7	Reverted incorrect Ack	2022-05-28 10:06:26 +00:00
slmnemo	bddc32ed21	changed ahb FSM and caught potential bug in ack/wordcountthreshold when on last word	2022-05-26 18:41:27 -07:00
slmnemo	efce3e4953	added LSUBurstDone signal to signal when a burst has finished	2022-05-26 16:29:13 -07:00
slmnemo	80965f953c	added burst size signals to the IFU, EBU, LSU, and busdp	2022-05-25 18:02:50 -07:00
slmnemo	95d64fe4ae	idk lol it says this has an unadded change	2022-05-25 17:17:49 -07:00
slmnemo	4a2538455d	added documentation for ahblite burst types to ahblite.sv	2022-05-19 18:31:46 -07:00
David Harris	f3c7025ade	Started make allsynth to try many experiments	2022-02-17 17:57:02 +00:00
David Harris	15fb7fee60	Cleaned up synthesis warnings	2022-02-11 01:15:16 +00:00
David Harris	ca1f7ce5d3	Renamed wallypipelinedhart to wallypipelinedcore	2022-01-20 16:02:08 +00:00
David Harris	b0263012e8	LSU cleanup	2022-01-15 00:11:30 +00:00
David Harris	3d2671a8b0	Reformatted MIT license to 95 characters	2022-01-07 12:58:40 +00:00
David Harris	2df92af488	Capitalized LSU and IFU, changed MulDiv to MDU	2022-01-07 04:30:00 +00:00
David Harris	6d4714651c	Removed more generate statements	2022-01-05 16:25:08 +00:00
David Harris	115287adc8	Renamed wally-pipelined to pipelined	2022-01-04 19:47:41 +00:00