Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 17:55:18 +0000 (18:55 +0100)]
wrong width for data / addr
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 16:54:50 +0000 (17:54 +0100)]
connect up WB SRAM to dcache test
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 15:46:35 +0000 (16:46 +0100)]
start on dcache test
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 15:25:11 +0000 (16:25 +0100)]
missing comb +=
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 15:22:07 +0000 (16:22 +0100)]
missing maybe_tlb_plrus
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 14:23:57 +0000 (15:23 +0100)]
WAY_BITS not TLB_WAY_BITS
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 14:21:05 +0000 (15:21 +0100)]
whoops new node not to be calculated at end
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 14:14:21 +0000 (15:14 +0100)]
try to get better DTLBUpdate
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 13:36:13 +0000 (14:36 +0100)]
simplify dcache pending
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 13:28:47 +0000 (14:28 +0100)]
move dcache pending test to separate module
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 12:55:51 +0000 (13:55 +0100)]
more error correction in dcache
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 11:36:47 +0000 (12:36 +0100)]
use module for TLBUpdate
Luke Kenneth Casson Leighton [Fri, 11 Sep 2020 10:26:23 +0000 (11:26 +0100)]
add brackets round if & in dcache
Cole Poirier [Fri, 11 Sep 2020 00:46:49 +0000 (17:46 -0700)]
icache.py add test_icache and icache_sim derived from icache_tb.vhdl
Cole Poirier [Fri, 11 Sep 2020 00:15:50 +0000 (17:15 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Fri, 11 Sep 2020 00:15:20 +0000 (17:15 -0700)]
icache.py fix spelling, syntax
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 23:48:51 +0000 (00:48 +0100)]
simplify read/write pte
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 23:38:22 +0000 (00:38 +0100)]
eek, big sort-out of syntax errors in dcache.py, now generates .il
Cole Poirier [Thu, 10 Sep 2020 23:30:23 +0000 (16:30 -0700)]
icache.py rearrange the code within the base class ICache
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 22:49:19 +0000 (23:49 +0100)]
starting on dcache syntax errors
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 22:21:47 +0000 (23:21 +0100)]
add PLRU microwatt conversion
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 16:34:38 +0000 (17:34 +0100)]
add function calls to construct dcache
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 16:13:13 +0000 (17:13 +0100)]
correct some errors introduced in dcache.py
Luke Kenneth Casson Leighton [Thu, 10 Sep 2020 15:50:43 +0000 (16:50 +0100)]
add docstring for PowerOp class
Luke Kenneth Casson Leighton [Wed, 9 Sep 2020 19:40:27 +0000 (20:40 +0100)]
more laborious line-by-line checking of dcache.py conversion
a subtype integer range 0 to NNN needs a Signal to be declared of
*log2_int(NNN)* not Signal(NNN)
Cole Poirier [Wed, 9 Sep 2020 15:05:59 +0000 (08:05 -0700)]
icache.py complete first translation pass of icache.vhdl
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 20:10:27 +0000 (21:10 +0100)]
add PowerDecoder explanation
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 18:12:26 +0000 (19:12 +0100)]
bit of a mess, trying to get PowerDecode to not create empty subdecoders
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 15:02:03 +0000 (16:02 +0100)]
subset columns for PowerDecoder - bit of a mess (done by hand)
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 13:46:14 +0000 (14:46 +0100)]
create a special subset of Decoder Record for storing "main" decoder info
this has to store Trap info however everything else is optional
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 13:09:35 +0000 (14:09 +0100)]
pass in state into PowerDecode2, save on eqs and wires
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 13:09:06 +0000 (14:09 +0100)]
give Decode2Execute1Type in core a name
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 13:05:13 +0000 (14:05 +0100)]
argh, somehow EINT check got moved out of if/elif block
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 12:37:27 +0000 (13:37 +0100)]
capture trap / irq conditions in flags for debug purposes
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 12:16:21 +0000 (13:16 +0100)]
pass in CoreState to PowerDecoder rather than eq a copy of it
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 09:52:37 +0000 (10:52 +0100)]
whoops trap address being set in wrong Decode2ExecuteType object
Luke Kenneth Casson Leighton [Tue, 8 Sep 2020 08:06:11 +0000 (09:06 +0100)]
add cxxsim option
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 21:31:34 +0000 (22:31 +0100)]
use PowerDecoderSubsets for FUs, except for TRAP which uses the main one
this because the TRAP gets rewritten
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 21:14:36 +0000 (22:14 +0100)]
add per-FU PowerDecoders. should now be subsettable
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 21:01:01 +0000 (22:01 +0100)]
create eq_from function based on eq_from_execute1
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 18:24:53 +0000 (19:24 +0100)]
debug print statement in eq_from_execute
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 18:24:34 +0000 (19:24 +0100)]
oe_ok renamed to oe, needed in regspec_decode_read
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 18:24:08 +0000 (19:24 +0100)]
add insn and fn_unit to CompLDSTOpSubset
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 18:23:50 +0000 (19:23 +0100)]
add pspec and opsubsetkls to CompUnits
Cole Poirier [Mon, 7 Sep 2020 19:38:56 +0000 (12:38 -0700)]
icache.py commit translation progress, about one third left
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 17:14:25 +0000 (18:14 +0100)]
make immediate decoding optional on-demand
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 17:13:33 +0000 (18:13 +0100)]
whoops spelling mistake outOut_carry not outPut_carry
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 16:22:52 +0000 (17:22 +0100)]
convert mul test to use Power Decode subset
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 16:18:25 +0000 (17:18 +0100)]
convert shift_rot to subset decoder
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 16:16:27 +0000 (17:16 +0100)]
convert branch test to PowerDecodeSubset form
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 16:13:09 +0000 (17:13 +0100)]
convert CR to PowerDecodeSubset format
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 15:59:40 +0000 (16:59 +0100)]
bit of a big reorg of data structures
ALU test_pipe_caller.py is now testing with a subset PowerDecoder2
and the field names need to change to match up.
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 15:14:11 +0000 (16:14 +0100)]
split out PowerDecode2 into PowerDecodeSubset
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 13:40:25 +0000 (14:40 +0100)]
large stack of moving stuff around in dcache
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 13:11:32 +0000 (14:11 +0100)]
adjust indentation of dcache_slow
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 13:01:22 +0000 (14:01 +0100)]
more dcache translation
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 12:24:42 +0000 (13:24 +0100)]
add start on cache_ram.vhdl to nmigen conversion
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 12:22:45 +0000 (13:22 +0100)]
more dcache translation
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 11:00:36 +0000 (12:00 +0100)]
allow Decode2ToExecute1Type to take an opkls argument
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 10:58:30 +0000 (11:58 +0100)]
whoops truncated the mb and me fields
Luke Kenneth Casson Leighton [Mon, 7 Sep 2020 00:01:39 +0000 (01:01 +0100)]
minor reorg on PowerDecoder
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 21:31:17 +0000 (22:31 +0100)]
comment, nothing unusual when Trap Type is DEC
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 21:21:09 +0000 (22:21 +0100)]
decoder immediate b split out to DecodeBImm
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 21:16:00 +0000 (22:16 +0100)]
decoder immediate a split out to DecodeAImm
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 20:42:51 +0000 (21:42 +0100)]
add row subset selector for PowerDecode.
allows functions to be used to create subset decoders
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 20:22:09 +0000 (21:22 +0100)]
add row_subset (doesnt do anything yet)
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 20:15:32 +0000 (21:15 +0100)]
pass col_subset throughout PowerDecoder
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 19:59:48 +0000 (20:59 +0100)]
reorganise PowerOp to be dynamic
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 19:33:16 +0000 (20:33 +0100)]
reorg of PowerOp to be able to dynamically subset it
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 19:19:03 +0000 (20:19 +0100)]
grr, autopep8 messing up
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 18:46:41 +0000 (19:46 +0100)]
copy dec SPR into decoder cur_state
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 18:43:40 +0000 (19:43 +0100)]
add reset option to Register
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 17:00:31 +0000 (18:00 +0100)]
wark-wark, fast regs is binary-addressed
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 16:49:20 +0000 (17:49 +0100)]
add unit test for slow SPRs (SPRG0/1)
add test mapping for slow SPR numbers
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 16:35:02 +0000 (17:35 +0100)]
minor code-munge on SPR-to-FAST mapping
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 16:34:13 +0000 (17:34 +0100)]
use with subTest in spr unit test
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 16:33:48 +0000 (17:33 +0100)]
redo generation of microwatt.v from litex
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 12:08:57 +0000 (13:08 +0100)]
add comments for DEC / TB
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 11:56:48 +0000 (12:56 +0100)]
add a DEC/TB FSM to TestIssuer
this operates on alternative cycles, because it reads/writes from the
Fast Regfile directly
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 11:50:47 +0000 (12:50 +0100)]
move DEC and TB from StateRegs to FastRegs for several reasons
first: SPR pipeline already has fast1 read/write
second: a new DecodeStateIn/Out object would be needed
instead just add FastRegs.DEC/TB to DecodeA/Out
third: there is probably a third somewhere
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 11:13:16 +0000 (12:13 +0100)]
add DEC SPR to CoreState and PowerDecoder, activate 0x900 interrupt
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 11:11:45 +0000 (12:11 +0100)]
add DEC and TB to State regfile
Luke Kenneth Casson Leighton [Sun, 6 Sep 2020 11:11:25 +0000 (12:11 +0100)]
add DEC/TB SPRs to spr pipeline
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 20:43:04 +0000 (21:43 +0100)]
add comments on MSR read
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 20:25:56 +0000 (21:25 +0100)]
move GPIO IRQ to 15 to match microwatt modifications
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 19:52:35 +0000 (20:52 +0100)]
hmmm XICS data being asserted on wb bus for too long
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 19:44:49 +0000 (20:44 +0100)]
argh missed a VHDL "&" translating to Cat
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 18:06:37 +0000 (19:06 +0100)]
reduce XICS address lookup by 2 bits
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 17:15:36 +0000 (18:15 +0100)]
MSR read in INSN_READ only occurs for 1 cycle
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 16:58:00 +0000 (17:58 +0100)]
sync on ICP eint
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 16:35:17 +0000 (17:35 +0100)]
connect XICS core irq to Decode2 eint
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 16:20:15 +0000 (17:20 +0100)]
whoops, combinatorial loop on pending_priority
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 16:10:26 +0000 (17:10 +0100)]
use stbcix in test
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 16:07:04 +0000 (17:07 +0100)]
XICS addresses in words: divide by 4
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 15:38:56 +0000 (16:38 +0100)]
whoops, ICS in litex sim needs to be 0x1000 size region
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 15:38:40 +0000 (16:38 +0100)]
add lwzcix unit test
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 15:32:23 +0000 (16:32 +0100)]
increase wishbone address width to 29 for xics and gpio
this may not be exactly correct, have to see how it goes
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 14:17:24 +0000 (15:17 +0100)]
submodule update
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 14:03:21 +0000 (15:03 +0100)]
add simple GPIO wishbone bus to litex sim.py
Luke Kenneth Casson Leighton [Sat, 5 Sep 2020 14:02:53 +0000 (15:02 +0100)]
add stbcix and lwzcix to power_enum list