Luke Kenneth Casson Leighton [Tue, 30 Mar 2021 12:35:14 +0000 (13:35 +0100)]
submodule update
Cesar Strauss [Tue, 30 Mar 2021 12:27:11 +0000 (09:27 -0300)]
Add new twin predication case
Equivalent to VCOMPRESS followed by VEXPAND.
Cesar Strauss [Tue, 30 Mar 2021 12:22:25 +0000 (09:22 -0300)]
Adjust twin predication cases for the new syntax
Cesar Strauss [Tue, 30 Mar 2021 11:57:48 +0000 (08:57 -0300)]
Skip leading zero bits on predicate masks
The PRED_SKIP state moves src/dst step to the next non-zero bit on the
mask.
The leading zeros on the mask (plus the set bit) are shifted out, while
the shifted amount is added to the step.
If the new step value would increase past VL, the loop is ended.
Luke Kenneth Casson Leighton [Tue, 30 Mar 2021 11:34:40 +0000 (12:34 +0100)]
use port name for INT regfile to match up with test_runner gtkw
Luke Kenneth Casson Leighton [Tue, 30 Mar 2021 11:29:56 +0000 (12:29 +0100)]
corrections to Makefile for building / not-building 4k sram ls180
Cesar Strauss [Tue, 30 Mar 2021 11:21:09 +0000 (08:21 -0300)]
Memory port seems to have been renamed
Luke Kenneth Casson Leighton [Tue, 30 Mar 2021 10:38:44 +0000 (11:38 +0100)]
bit of munging of Makefile, new targets
Luke Kenneth Casson Leighton [Tue, 30 Mar 2021 10:22:17 +0000 (11:22 +0100)]
whoops Makefile error
Luke Kenneth Casson Leighton [Mon, 29 Mar 2021 19:05:11 +0000 (20:05 +0100)]
correct segment check (off by one in LE/BE convert
Luke Kenneth Casson Leighton [Mon, 29 Mar 2021 18:18:44 +0000 (19:18 +0100)]
update submodule
Luke Kenneth Casson Leighton [Mon, 29 Mar 2021 18:18:33 +0000 (19:18 +0100)]
sort out pywriter.py when run with no args
Luke Kenneth Casson Leighton [Mon, 29 Mar 2021 17:31:11 +0000 (18:31 +0100)]
remove "install" from run_sim dependency in Makefile
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 22:57:45 +0000 (23:57 +0100)]
svp64-enable passed through to PowerDecoderSubsets in core.py
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 22:56:36 +0000 (23:56 +0100)]
whoops spelling mistake in SPRreduced Enums
Cesar Strauss [Sun, 28 Mar 2021 18:18:28 +0000 (15:18 -0300)]
Move DECODE_SV to its place between MASK_WAIT and INSN_EXECUTE
Cesar Strauss [Sun, 28 Mar 2021 18:03:24 +0000 (15:03 -0300)]
Move instruction decoding to after predication
Since predication can update SRCSTEP and DESTSTEP, leave decoding for
after their final values are known.
So, "DECODE_SV" is now responsible for decoding, and sits in line between
"MASK_WAIT" and "INSN_EXECUTE".
Cesar Strauss [Sun, 28 Mar 2021 16:57:36 +0000 (13:57 -0300)]
Prepare to advance src/dst step after getting the predicate mask
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 15:48:53 +0000 (16:48 +0100)]
rather invasive reduction of SPR regfile size
done by dynamically creating an alternative SPR Enum
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 13:53:20 +0000 (14:53 +0100)]
add option to reduce number of regfile ports (get DFFs down in ls180)
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 13:37:16 +0000 (14:37 +0100)]
reduce number of regfile ports
Luke Kenneth Casson Leighton [Sun, 28 Mar 2021 13:29:37 +0000 (14:29 +0100)]
reduce regfile port usage on non-svp64
Tobias Platen [Thu, 25 Mar 2021 19:33:22 +0000 (20:33 +0100)]
radixmmu.py: cleanup, documentation
Tobias Platen [Thu, 25 Mar 2021 19:24:49 +0000 (20:24 +0100)]
fix _get_prtable_addr, cleanup
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 18:59:42 +0000 (18:59 +0000)]
comment about using PriorityEncoder
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 17:11:00 +0000 (17:11 +0000)]
debug output
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 17:06:29 +0000 (17:06 +0000)]
add comment skipping in pagereader.py
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 16:10:00 +0000 (16:10 +0000)]
make svp64 isa caller unit tests more obvious
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 15:44:39 +0000 (15:44 +0000)]
add option to stop writing isa all.py in pseudocode directory
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 09:27:29 +0000 (09:27 +0000)]
fix nonzero test in ISACaller RADIXMMU
Luke Kenneth Casson Leighton [Wed, 24 Mar 2021 09:26:36 +0000 (09:26 +0000)]
add --disable-svp64 to litex sim build
Tobias Platen [Tue, 23 Mar 2021 20:51:03 +0000 (21:51 +0100)]
make addrshift human readable
Tobias Platen [Tue, 23 Mar 2021 20:09:58 +0000 (21:09 +0100)]
add addrshift function (based on microwatt)
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 23:51:06 +0000 (23:51 +0000)]
do not set sv_changed
Tobias Platen [Mon, 22 Mar 2021 20:21:28 +0000 (21:21 +0100)]
testcase for _get_pgtable_addr
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 17:33:14 +0000 (17:33 +0000)]
read predicate mask from correct point in SVP64Asm
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 17:30:58 +0000 (17:30 +0000)]
add SVP64Asm option for "m=" to set both src and dest mask
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 17:14:25 +0000 (17:14 +0000)]
add very small dff sram variant (no 4k SRAMs)
Cesar Strauss [Mon, 22 Mar 2021 11:46:22 +0000 (08:46 -0300)]
Add test cases for integer VCOMPRESS and VEXPAND
In these cases, either srcmask or destmask is "always", so the
corresponding mask should be all ones, instead of being fetched from the
register file.
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 12:40:35 +0000 (12:40 +0000)]
make sure non-svp64-mode works
Luke Kenneth Casson Leighton [Mon, 22 Mar 2021 12:12:06 +0000 (12:12 +0000)]
have get_predint return indicator that mask is all 1s
Cesar Strauss [Mon, 22 Mar 2021 10:34:09 +0000 (07:34 -0300)]
Skip fetching integer predicate mask when register number is zero
Cesar Strauss [Mon, 22 Mar 2021 00:52:47 +0000 (21:52 -0300)]
Add traces for the new FSM and integer predicate decoding
Cesar Strauss [Mon, 22 Mar 2021 00:26:11 +0000 (21:26 -0300)]
Decode and fetch integer predicate registers
Cesar Strauss [Sun, 21 Mar 2021 21:41:06 +0000 (18:41 -0300)]
Fix typo
Cesar Strauss [Sun, 21 Mar 2021 21:14:54 +0000 (18:14 -0300)]
Add unique name to decoded predication signals
Cesar Strauss [Sun, 21 Mar 2021 20:53:21 +0000 (17:53 -0300)]
Revert removal of *.value from Enums
Cesar Strauss [Sun, 21 Mar 2021 18:03:28 +0000 (15:03 -0300)]
Fix syntax
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 18:03:29 +0000 (18:03 +0000)]
more TODO comments
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 14:48:01 +0000 (14:48 +0000)]
add for-loop pseudocode for CR predicate mask reading
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 13:25:26 +0000 (13:25 +0000)]
code comments in TestIssuer
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 13:18:30 +0000 (13:18 +0000)]
adjust syntax of SVP64 predicate test cas
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 13:17:26 +0000 (13:17 +0000)]
naah. back to "sv." syntax for SVP64 assembly
Cesar Strauss [Sun, 21 Mar 2021 13:02:19 +0000 (10:02 -0300)]
Start work on the predicate fetch FSM
After an instruction arrives, it will decode the SVP64 mask part
and will fetch the masks from the register files.
At the moment, it just returns the all ones mask.
The Issue FSM calls it, after receiving an instruction from Fetch, and
before entering execution vector loop.
Cesar Strauss [Sun, 21 Mar 2021 11:44:09 +0000 (08:44 -0300)]
Add predication test case, initially disabled
Directly derived from a test in test_caller_svp64_predication.py
The goal is to incrementally develop the TestIssuer FSMs, until it passes.
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 11:07:59 +0000 (11:07 +0000)]
add override for build commands powerpc64-linux-gnu-{ENVVAR}
Luke Kenneth Casson Leighton [Sun, 21 Mar 2021 10:55:01 +0000 (10:55 +0000)]
enable -mregnames in assembly syntax for unit tests
Luke Kenneth Casson Leighton [Sat, 20 Mar 2021 18:58:54 +0000 (18:58 +0000)]
more pseudocode in TestIssuer
Luke Kenneth Casson Leighton [Sat, 20 Mar 2021 18:51:41 +0000 (18:51 +0000)]
move radixmmu to unit test format
Luke Kenneth Casson Leighton [Sat, 20 Mar 2021 18:29:01 +0000 (18:29 +0000)]
add harmless code and commented-out pseudocode for predication in TestIssuer
Luke Kenneth Casson Leighton [Sat, 20 Mar 2021 11:22:23 +0000 (11:22 +0000)]
sort out predicate zeroing in ISACaller
Luke Kenneth Casson Leighton [Sat, 20 Mar 2021 00:12:06 +0000 (00:12 +0000)]
attempting to add src/dest-zeroing to ISACaller
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 23:40:38 +0000 (23:40 +0000)]
more comments for TestIssuer when adding predication
Tobias Platen [Fri, 19 Mar 2021 19:33:22 +0000 (20:33 +0100)]
testcase for _get_pgtable_addr
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 19:12:11 +0000 (19:12 +0000)]
decode predicate src/dest zeroing in SVP64RMModeDecode
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:45:01 +0000 (14:45 +0000)]
comments for TestIssuer get_predint and get_predcr
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:37:17 +0000 (14:37 +0000)]
add more pieces of predication reading puzzle to TestIssuer
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:17:00 +0000 (14:17 +0000)]
cleanup TestIssuer (comments)
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:14:10 +0000 (14:14 +0000)]
spelling
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:12:44 +0000 (14:12 +0000)]
code-shuffle in TestIssuer, split out setting up peripherals
Luke Kenneth Casson Leighton [Fri, 19 Mar 2021 14:04:23 +0000 (14:04 +0000)]
move duplicated code to a function in TestIssuer
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 21:26:04 +0000 (21:26 +0000)]
more hint/comments
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 21:23:53 +0000 (21:23 +0000)]
comments / code-shuffle
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 21:16:21 +0000 (21:16 +0000)]
update TestIssuer comments
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 20:02:32 +0000 (20:02 +0000)]
add comments on most likely place to put predicate mask read-firing
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 19:15:38 +0000 (19:15 +0000)]
comments TestIssuer, add a stub FSM
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 18:45:38 +0000 (18:45 +0000)]
add MSR PR read in RADIXMMU ISACaller
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 18:34:07 +0000 (18:34 +0000)]
re-add auto-generated file simplev.py to gitignore
https://git.libre-soc.org/?p=soc.git;a=commitdiff;h=
d3767842a2f8f66f9e3de882a36592bfa3d344b8;hp=
3f8a17ca49a1cc9636b85b41b84a0a88476cbdf8
Jacob Lifshay [Thu, 18 Mar 2021 16:42:45 +0000 (09:42 -0700)]
re-add nmigen-type-annotations with libre-soc url
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 14:42:40 +0000 (14:42 +0000)]
experiment in radixmmu with returning addr_next (and some error messages)
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 12:24:54 +0000 (12:24 +0000)]
add sv_out2 to PowerDecode and PowerDecoder2
used for 2nd write (currently LD/ST update only)
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 12:15:00 +0000 (12:15 +0000)]
cross-reference to bug #619
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 12:13:20 +0000 (12:13 +0000)]
add auto-generation of out2 column in SVP64RM
needed for PowerDecoder2 as well as microwatt svp64 vhdl generation
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 11:48:14 +0000 (11:48 +0000)]
remove nmigen-type-annotations temporarily
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 11:47:07 +0000 (11:47 +0000)]
remove nmigen-type-annotations temporarily
Luke Kenneth Casson Leighton [Thu, 18 Mar 2021 11:22:05 +0000 (11:22 +0000)]
add option to move RS in CSV file reading, for compatibility with microwatt
decode1.vhdl;
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 22:33:15 +0000 (22:33 +0000)]
correct comments
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 22:29:07 +0000 (22:29 +0000)]
re-enable SVP64 ISACaller predicate tests
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 22:25:21 +0000 (22:25 +0000)]
add ascii graphic for extsw svp64 operation
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 22:21:12 +0000 (22:21 +0000)]
add more explanatory comments
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 22:15:58 +0000 (22:15 +0000)]
add twin-predicated extsw SVP64 ISACaller unit test
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 21:29:49 +0000 (21:29 +0000)]
add SVP64 dststep incrementing in PowerDecoder2, Testissuer and ISACaller
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 20:40:49 +0000 (20:40 +0000)]
add CR-based predication to ISACaller
Tobias Platen [Wed, 17 Mar 2021 19:13:40 +0000 (20:13 +0100)]
cleanup raduxmmu._walk_tree
Tobias Platen [Wed, 17 Mar 2021 18:59:12 +0000 (19:59 +0100)]
create iterative mmu lookup loop
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 15:20:02 +0000 (15:20 +0000)]
add SVP64 INT-style predication to ISACaller
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 14:13:02 +0000 (14:13 +0000)]
add predication SVP64 unit test
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 13:21:25 +0000 (13:21 +0000)]
add predication read ports (CR and INT)
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 13:16:24 +0000 (13:16 +0000)]
whoops shift has to be done at same bitwidth
Luke Kenneth Casson Leighton [Wed, 17 Mar 2021 13:14:07 +0000 (13:14 +0000)]
split out new_lookup function