Luke Kenneth Casson Leighton [Tue, 16 Feb 2021 16:33:22 +0000 (16:33 +0000)]
adapt botchify so it can be used for 31- or 15- etc. etc.
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 14:06:39 +0000 (14:06 +0000)]
add indicator to PowerDecoder2 when no outputs are Vectorised
Cole Poirier [Mon, 15 Feb 2021 20:31:05 +0000 (12:31 -0800)]
remove file experiment/formal/proof_icache.py as it was reviewed and
determined to be not necessary at this point, if ever due to the
complexity of the icache, dcache, and mmu modules
Cesar Strauss [Mon, 15 Feb 2021 17:06:12 +0000 (14:06 -0300)]
Simplify obtaining the PC from the register file
Tobias Platen [Mon, 15 Feb 2021 16:19:15 +0000 (17:19 +0100)]
Merge branch 'master' of ssh://git.libre-riscv.org:922/soc
Cesar Strauss [Sun, 14 Feb 2021 22:49:02 +0000 (19:49 -0300)]
Show traces for the register numbers of the current instruction
Will make it easier to follow the vector loop, when it begins to increment
them.
Cesar Strauss [Sun, 14 Feb 2021 22:21:34 +0000 (19:21 -0300)]
Fix width of the "extra" input on the Extra decoder
The Extra field is nine bits long.
Cesar Strauss [Sun, 14 Feb 2021 21:47:02 +0000 (18:47 -0300)]
Fix conversion to MSB0
Correct formula is 31 - x.
Cesar Strauss [Sun, 14 Feb 2021 19:16:24 +0000 (16:16 -0300)]
Remove obsolete comment
Forgot to remove the TODO item when I implemented it.
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 13:25:56 +0000 (13:25 +0000)]
add comments to TestIssuer
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 13:12:38 +0000 (13:12 +0000)]
add srcstep onto Vectorised GPRs in PowerDecoder2
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 13:04:39 +0000 (13:04 +0000)]
add TestRunner comments
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 13:03:13 +0000 (13:03 +0000)]
add Regfiles comments
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 12:44:59 +0000 (12:44 +0000)]
add SVSTATE reading to TestIssuer
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 12:37:45 +0000 (12:37 +0000)]
add SVSTATE to CoreState
Luke Kenneth Casson Leighton [Sun, 14 Feb 2021 12:34:38 +0000 (12:34 +0000)]
add extra FSM explanatory comments to TestIssuer
Luke Kenneth Casson Leighton [Sat, 13 Feb 2021 22:53:22 +0000 (22:53 +0000)]
use function for getting instruction from 32/64 bit fetch
Cesar Strauss [Sat, 13 Feb 2021 21:40:27 +0000 (18:40 -0300)]
Fetch and decode the SVP64 prefix
After fetching the word at the PC, send it combinatorially to the SVP64
decoder. Pass the decoded prefix (if any) to PowerDecoder2. If it's not a
prefix, hand over the instruction to the decoder. Otherwise, initiate a
read from the next memory location. Adjust the next instruction address
accordingly.
Tobias Platen [Sat, 13 Feb 2021 20:23:28 +0000 (21:23 +0100)]
OP_TLBIE must in be instr_is_priv
Tobias Platen [Sat, 13 Feb 2021 20:13:50 +0000 (21:13 +0100)]
keep commits to under 80 chars
Cesar Strauss [Sat, 13 Feb 2021 19:55:39 +0000 (16:55 -0300)]
Check the PC value at the end of each instruction
Useful for checking that the PC really points to the next instruction,
after fetching a prefixed instruction.
Cesar Strauss [Sat, 13 Feb 2021 19:22:47 +0000 (16:22 -0300)]
Skip vector test case, and add a scalar case
Even if the prefix is a no-op, it will at least test the fetch unit.
Cesar Strauss [Sat, 13 Feb 2021 18:59:17 +0000 (15:59 -0300)]
Fix imports and whitespace
Luke Kenneth Casson Leighton [Sat, 13 Feb 2021 18:29:06 +0000 (18:29 +0000)]
update svp64 unit test comments
Tobias Platen [Sat, 13 Feb 2021 17:07:43 +0000 (18:07 +0100)]
forward microwatt mmu specific SPR: PID and PRTBL
Luke Kenneth Casson Leighton [Sat, 13 Feb 2021 12:27:08 +0000 (12:27 +0000)]
add SVP64 TestIssuer separate unit test
Luke Kenneth Casson Leighton [Sat, 13 Feb 2021 12:23:50 +0000 (12:23 +0000)]
split out TestRunner into separate module
Cesar Strauss [Sat, 13 Feb 2021 09:12:09 +0000 (06:12 -0300)]
Fix SVP64 translator to yield the unaltered instruction
Being a generator, it yields one item at a time, instead of appending to
a list.
Clean up the now unused return list, and simplify the iterator.
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 15:23:44 +0000 (15:23 +0000)]
add one SVP64 ALU test case to get started
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 15:23:05 +0000 (15:23 +0000)]
add SVSTATE to TestCase infrastructure for use in TestIssuer
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 15:07:09 +0000 (15:07 +0000)]
add skip of instruction if SVSTATE.VL=0 in ISACaller
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 15:02:43 +0000 (15:02 +0000)]
validate all registers to make sure no damage occurs in SVP64 ISACaller
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 14:41:48 +0000 (14:41 +0000)]
add srcstep and correct PC-advancing during Sub-PC looping in ISACaller
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 13:20:02 +0000 (13:20 +0000)]
comments
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 13:18:16 +0000 (13:18 +0000)]
add in SVSTATE.srcstep update, loop from 0 to VL-1
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 13:06:49 +0000 (13:06 +0000)]
allow PC to update by 8 in SVP64 mode
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 12:55:01 +0000 (12:55 +0000)]
fix setting of SVSTATE.VL and MVL
Luke Kenneth Casson Leighton [Fri, 12 Feb 2021 12:51:21 +0000 (12:51 +0000)]
add in SVSTATE to ISACaller, not used, just passed in
Luke Kenneth Casson Leighton [Thu, 11 Feb 2021 15:57:25 +0000 (15:57 +0000)]
comments in TestIssuer for SVP64PrefixDecoder
Luke Kenneth Casson Leighton [Wed, 10 Feb 2021 15:25:06 +0000 (15:25 +0000)]
add svp64 reg decode detection to ISACaller output
Luke Kenneth Casson Leighton [Tue, 9 Feb 2021 19:46:02 +0000 (19:46 +0000)]
starting to add SVP64 register EXTRA-read and isvec to ISACaller
Luke Kenneth Casson Leighton [Thu, 4 Feb 2021 16:53:53 +0000 (16:53 +0000)]
comment update
colepoirier [Tue, 9 Feb 2021 22:38:47 +0000 (14:38 -0800)]
add missing newline at end of experiment/formal/.gitignore
colepoirier [Tue, 9 Feb 2021 22:36:31 +0000 (14:36 -0800)]
fix erroneous removal of proof* from experiment/formal/.gitignore, now
proof*/**
colepoirier [Sun, 7 Feb 2021 22:33:43 +0000 (14:33 -0800)]
add skeleton implementation of experiment/formal/proof_icache.py to
so I can solicit help
colepoirier [Sun, 7 Feb 2021 22:33:14 +0000 (14:33 -0800)]
icache.py fix formatting
colepoirier [Sun, 7 Feb 2021 22:30:16 +0000 (14:30 -0800)]
Modify experiment/formal/.gitignore because was preventing commiting
proof_icache.py
Cesar Strauss [Sat, 6 Feb 2021 21:33:26 +0000 (18:33 -0300)]
Fix whitespace
Cesar Strauss [Sat, 6 Feb 2021 20:53:22 +0000 (17:53 -0300)]
Extract the fetch FSM out from the main FSM
Allows future extension to prefixed instructions, as well as being an
opportunity for pipeline optimization.
At start, the fetch FSM waits for the PC to be stable. This
happens when there is no longer an instruction being executed.
When done, it hands over the instruction to the decoder.
Tobias Platen [Fri, 5 Feb 2021 20:01:08 +0000 (21:01 +0100)]
fix hanging simulation
Tobias Platen [Thu, 4 Feb 2021 20:01:38 +0000 (21:01 +0100)]
src/soc/fu/mmu/fsm.py: add debug outputs for gtkwave
Tobias Platen [Thu, 4 Feb 2021 19:26:51 +0000 (20:26 +0100)]
update test_issuer_mmu_data_path.py to handle SPRs
Tobias Platen [Thu, 4 Feb 2021 19:19:39 +0000 (20:19 +0100)]
pass SPR MicroOp to MMU function unit
Luke Kenneth Casson Leighton [Wed, 3 Feb 2021 21:26:15 +0000 (21:26 +0000)]
nope - need it to be zero if not identified as svp64
Luke Kenneth Casson Leighton [Wed, 3 Feb 2021 21:24:05 +0000 (21:24 +0000)]
actually no need to mux in the svp64_rm, just the id "is this svp64" is enough
Luke Kenneth Casson Leighton [Wed, 3 Feb 2021 21:23:22 +0000 (21:23 +0000)]
add SVP64PowerDecoder, extracts svp64 remap if correctly identified
Luke Kenneth Casson Leighton [Mon, 1 Feb 2021 21:23:22 +0000 (21:23 +0000)]
ISACaller, in svp64 mode, read the next 32 bits when SVP64 identified
Tobias Platen [Mon, 1 Feb 2021 20:07:53 +0000 (21:07 +0100)]
extending the GTKWave document in test_issuer when microwatt_mmu = True
Luke Kenneth Casson Leighton [Mon, 1 Feb 2021 14:49:01 +0000 (14:49 +0000)]
sort out SelectableInt bit-ordering for identifying SVP64 fields
Luke Kenneth Casson Leighton [Mon, 1 Feb 2021 14:21:49 +0000 (14:21 +0000)]
construct the assembly-code prefix and base v3.0B in SVP64Asm class
Cesar Strauss [Mon, 1 Feb 2021 09:43:36 +0000 (06:43 -0300)]
Add GTKWave document to test_issuer
Cesar Strauss [Sun, 31 Jan 2021 20:18:18 +0000 (17:18 -0300)]
Fix loop test and enable it
Make the code correspond to the comments and vice-versa.
Due to the branching, this test is useful for ensuring correctness of the
interaction between instruction fetch and issue.
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 20:42:29 +0000 (20:42 +0000)]
start an ISACaller SVP64 unit test
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 20:28:27 +0000 (20:28 +0000)]
test SVP64 major opcode, start checking if it is EXT001 soon
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 20:04:10 +0000 (20:04 +0000)]
adjusting ISACaller unit test to use ISACaller.setup_one()
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 19:51:27 +0000 (19:51 +0000)]
fix ISACaller unit test
Tobias Platen [Sun, 31 Jan 2021 18:48:18 +0000 (19:48 +0100)]
fix two syntax errors in src/soc/decoder/isa/caller.py
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 18:03:01 +0000 (18:03 +0000)]
SVP64 Remap Fields structures for ISACaller
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 16:01:16 +0000 (16:01 +0000)]
remove sv_rm from PowerDecoder register decoders
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 15:53:19 +0000 (15:53 +0000)]
add SVSTATE SPR sub-field accessor class to ISACaller
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 15:28:02 +0000 (15:28 +0000)]
move SVP64 Extra reg decoding into main PowerDecoder module
Luke Kenneth Casson Leighton [Sun, 31 Jan 2021 15:08:29 +0000 (15:08 +0000)]
update submodule
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 17:53:21 +0000 (17:53 +0000)]
move CR in/out SVP64 EXTRA decoders into PowerDecoder
this due to satellite SubsetPowerDecoders containing unnecessary SVP64decoders
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 14:04:02 +0000 (14:04 +0000)]
add SVP64 CR out extending to 7-bit in PowerDecoder2
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 13:55:55 +0000 (13:55 +0000)]
add SVP64 CR EXTRA field-extension, from 3-bit to 7-bit (plus isvec)
in PowerDecoder2
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 13:17:45 +0000 (13:17 +0000)]
extend CR registers in Decode2ToExecute1Type to 7 bit
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 13:10:16 +0000 (13:10 +0000)]
add SVP64CRExtra class to PowerDecoder2, turns 3-bit CR into 7-bit plus isvec
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 12:55:21 +0000 (12:55 +0000)]
split out SVEXTRA field selection/decoding into separate class SVP64ExtraSpec
in PowerDecoder2
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 12:46:38 +0000 (12:46 +0000)]
whoops update PowerDecoder2 svp64 comments, reg sizes (7 bit)
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 00:36:22 +0000 (00:36 +0000)]
add SVP64 EXTRA decoding to RB, RC and RT (out) in PowerDecode2
DecodeOut2 will have to wait because it is more complex
Luke Kenneth Casson Leighton [Sat, 30 Jan 2021 00:17:20 +0000 (00:17 +0000)]
add first SVP64 7-bit register context decoder to PowerDecoder2
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 23:01:06 +0000 (23:01 +0000)]
add SVP64RM record to PowerDecoder2
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 23:00:46 +0000 (23:00 +0000)]
increase register number sizes from 5 to 7
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 22:51:37 +0000 (22:51 +0000)]
syntax corrections, also size of maxvl was wrong
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 22:46:43 +0000 (22:46 +0000)]
add SVP64 RM (Remap) Record
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 22:39:44 +0000 (22:39 +0000)]
adjust SVP64RM class to output more PowerDecoder-friendly csv augmentation
add SVEXTRA power_enum
extend PowerDecoder fields (sv in/out regs)
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 18:42:08 +0000 (18:42 +0000)]
adjust how register copy/setup is done in PowerDecoder2
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 14:59:49 +0000 (14:59 +0000)]
add SV etype/ptype to power decoder
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 12:12:12 +0000 (12:12 +0000)]
whoops syntax error. submodule update
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 11:56:35 +0000 (11:56 +0000)]
start adding svp64 enums
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 11:33:22 +0000 (11:33 +0000)]
use new svp64-augmented csv reader in PowerDecoder
Luke Kenneth Casson Leighton [Fri, 29 Jan 2021 11:19:14 +0000 (11:19 +0000)]
whoops missed out "+" on explicit license listing
Luke Kenneth Casson Leighton [Thu, 28 Jan 2021 16:07:29 +0000 (16:07 +0000)]
add SVSTATE to StateRegs
(also fix comments)
Luke Kenneth Casson Leighton [Thu, 28 Jan 2021 15:53:50 +0000 (15:53 +0000)]
add SVState SPR Record, SVSTATERec
Luke Kenneth Casson Leighton [Wed, 27 Jan 2021 18:38:34 +0000 (18:38 +0000)]
add svp64 CR field identification for EXTRA2/3 decoding
Luke Kenneth Casson Leighton [Wed, 27 Jan 2021 18:16:47 +0000 (18:16 +0000)]
move svp64 reg-decode function to more appropriate location
use it in SVP64RM get_svp64_csv to decode EXTRA bit-field positions
Luke Kenneth Casson Leighton [Wed, 27 Jan 2021 12:49:05 +0000 (12:49 +0000)]
provide "merger" of SVP64 RM info into v3.0B CSV files
Tobias Platen [Wed, 27 Jan 2021 19:45:37 +0000 (20:45 +0100)]
use SPR constants
Luke Kenneth Casson Leighton [Wed, 27 Jan 2021 12:38:35 +0000 (12:38 +0000)]
move SVP64RM CSV class to new module
Luke Kenneth Casson Leighton [Wed, 27 Jan 2021 12:35:30 +0000 (12:35 +0000)]
whitespace and shortening of SPR MMU redirection in Power Decoder