Luke Kenneth Casson Leighton [Mon, 8 Jan 2024 22:37:02 +0000 (22:37 +0000)]
bug 676: sorting out maxloc assembler, found bug in sv.creqv vector
raised https://bugs.libre-soc.org/show_bug.cgi?id=1248
Luke Kenneth Casson Leighton [Fri, 22 Dec 2023 08:59:53 +0000 (08:59 +0000)]
bug 676: maxloc experimentation
Luke Kenneth Casson Leighton [Thu, 21 Dec 2023 16:35:38 +0000 (16:35 +0000)]
bug 676: with messing about got at least an inner maxloc loop working
Luke Kenneth Casson Leighton [Thu, 21 Dec 2023 16:33:34 +0000 (16:33 +0000)]
bug 676: although spotted under maxloc, sv.mcrf was incomplete
https://bugs.libre-soc.org/show_bug.cgi?id=1239
BF was "vectorised" (through a rewrite of the immediate field)
but BFA was not. a *lot* more unit tests are needed for ISACaller
to be "up to spec"
Luke Kenneth Casson Leighton [Sun, 17 Dec 2023 22:24:13 +0000 (22:24 +0000)]
add first cut at parallel maxloc, adding random tests
Luke Kenneth Casson Leighton [Mon, 18 Dec 2023 10:59:49 +0000 (10:59 +0000)]
bug 676: add start of svp64 maxloc, based on pospopcount
Luke Kenneth Casson Leighton [Sat, 16 Dec 2023 08:37:31 +0000 (08:37 +0000)]
bug 1236: add extra argument to svstep: RA.
Luke Kenneth Casson Leighton [Fri, 15 Dec 2023 23:28:53 +0000 (23:28 +0000)]
bug 676: put maxloc.py test data into array
Luke Kenneth Casson Leighton [Fri, 15 Dec 2023 23:26:23 +0000 (23:26 +0000)]
remove unneeded tests
Luke Kenneth Casson Leighton [Fri, 15 Dec 2023 23:25:16 +0000 (23:25 +0000)]
bug 672: add python-based maxloc.py for unit testing
Luke Kenneth Casson Leighton [Fri, 15 Dec 2023 23:23:37 +0000 (23:23 +0000)]
bug 676: add first cut at maxloc copy/paste from ddffirst test
Jacob Lifshay [Tue, 16 Jan 2024 09:18:58 +0000 (01:18 -0800)]
fixedsync.mdwn: change sync from v3.1B version to v3.0B version
to use the v3.1B version requires fixing fields.text to use the new
L and SC fields, which requires deciphering all the places where the
current L (named L2) field is used and making sure they'll be correct still.
using the old interpretation of sync should be correct, but less optimal,
assuming OpenPower got their backwards compatibility correct.
Luke Kenneth Casson Leighton [Sun, 14 Jan 2024 19:36:18 +0000 (19:36 +0000)]
bug 1251: WIP stbcx removed
Luke Kenneth Casson Leighton [Mon, 8 Jan 2024 13:53:39 +0000 (13:53 +0000)]
fix memory locations in linked-list test_caller_svp64_ldst.py
Jacob Lifshay [Tue, 9 Jan 2024 08:01:44 +0000 (00:01 -0800)]
fptrans.mdwn: don't parenthesize register being assigned to
Fixes: https://bugs.libre-soc.org/show_bug.cgi?id=1247
Luke Kenneth Casson Leighton [Thu, 21 Dec 2023 17:22:52 +0000 (17:22 +0000)]
whitespace
Jacob Lifshay [Tue, 19 Dec 2023 01:46:13 +0000 (17:46 -0800)]
.gitlab-ci.yml: re-add maxschedchunk, it provides massive speedups -- ~2x on CI
this essentially reverts
bfb9d7f312ebb5f394414b5e1ea8f03728af4489
on CI,
bfb9d7f312ebb5f394414b5e1ea8f03728af4489 took 5h45m:
https://salsa.debian.org/Kazan-team/mirrors/openpower-isa/-/jobs/
5038101
the parent commit took 2h37m:
https://salsa.debian.org/Kazan-team/mirrors/openpower-isa/-/jobs/
5034703
Luke Kenneth Casson Leighton [Fri, 15 Dec 2023 23:22:16 +0000 (23:22 +0000)]
bug 1183: correct comments from cut/paste
lkcl [Wed, 13 Dec 2023 22:36:45 +0000 (22:36 +0000)]
remove pytest option which hard-codes assumptions about installed version
Jacob Lifshay [Tue, 12 Dec 2023 18:20:03 +0000 (10:20 -0800)]
elf/simple_cases: disable case_static_glibc for now, re-enable when we work on it again.
Jacob Lifshay [Tue, 12 Dec 2023 18:11:04 +0000 (10:11 -0800)]
add make_gdb_vm_image.sh script, it doesn't work yet but could be useful
see https://bugs.libre-soc.org/show_bug.cgi?id=1228#c15
Jacob Lifshay [Thu, 7 Dec 2023 08:55:22 +0000 (00:55 -0800)]
load_elf: dump a sequence of gdb commands for easy debugging
dumps a sequence of gdb commands that can easily be copied from
the output and pasted into gdb to reset the stack to what load_elf
uses, instead of what gdb's execve does.
Jacob Lifshay [Thu, 7 Dec 2023 08:53:20 +0000 (00:53 -0800)]
MemMMap: fix brk_syscall -- use unrounded input address as heap end
it should use the input address as given when tracking the end of
the heap and returning addresses. it still needs to align addresses
when mapping/unmapping pages.
Jacob Lifshay [Thu, 7 Dec 2023 08:52:48 +0000 (00:52 -0800)]
load_elf: add forgotten auxv entries
Jacob Lifshay [Thu, 7 Dec 2023 07:36:14 +0000 (23:36 -0800)]
load_elf: copy linux's auxv, argv, and env layout
Jacob Lifshay [Wed, 6 Dec 2023 09:11:56 +0000 (01:11 -0800)]
load_elf: match linux better for statically-linked binaries
we still need more auxv entries, but the rest should match close
enough now.
Jacob Lifshay [Wed, 6 Dec 2023 09:09:42 +0000 (01:09 -0800)]
elf/simple_cases: enable debug info for statically-linked glibc demo
Jacob Lifshay [Wed, 6 Dec 2023 09:08:25 +0000 (01:08 -0800)]
MemMMap: raise error for bad load/fetch addresses when emulating mmap
Jacob Lifshay [Wed, 6 Dec 2023 09:07:42 +0000 (01:07 -0800)]
caller.py: don't try to make zero-sized memory accesses, they error
Jacob Lifshay [Wed, 6 Dec 2023 09:06:26 +0000 (01:06 -0800)]
test/elf/__init__: make objdump go to default log kind -- it's quieter
Jacob Lifshay [Mon, 4 Dec 2023 10:15:47 +0000 (02:15 -0800)]
caller.py: implement writev syscall
Jacob Lifshay [Mon, 4 Dec 2023 10:15:30 +0000 (02:15 -0800)]
fixedsync.mdwn: add sync instruction
Jacob Lifshay [Mon, 4 Dec 2023 10:13:52 +0000 (02:13 -0800)]
MemMMap: use modified_pages.discard instead of remove since pages may not be modified
Jacob Lifshay [Mon, 4 Dec 2023 09:45:23 +0000 (01:45 -0800)]
test/ldst: add fixedsync tests for b/h/w/d ll/sc, but not quadword
quadword probably doesn't work correctly and probably requires a bit of work
Jacob Lifshay [Mon, 4 Dec 2023 09:43:26 +0000 (01:43 -0800)]
major/minor_62: add FIXMEs to lq/stq to match the FIXMEs on lqarx/stqcx.
Jacob Lifshay [Mon, 4 Dec 2023 09:42:31 +0000 (01:42 -0800)]
fixedsync/minor_31: add stqcx. because I'm adding the others anyway
Jacob Lifshay [Mon, 4 Dec 2023 09:41:04 +0000 (01:41 -0800)]
fixedsync/minor_31: add lqarx because I'm adding the others anyway
Jacob Lifshay [Mon, 4 Dec 2023 09:37:29 +0000 (01:37 -0800)]
minor_62.csv: add unofficial and comment2 fields
Jacob Lifshay [Mon, 4 Dec 2023 09:36:57 +0000 (01:36 -0800)]
major.csv: add unofficial and comment2 fields
Jacob Lifshay [Mon, 4 Dec 2023 08:23:09 +0000 (00:23 -0800)]
fixedsync.mdwn: implement other sizes: lbarx lharx ldarx stbcx. sthcx. stdcx.
still unimplemented: lqarx and stqcx.
Jacob Lifshay [Mon, 4 Dec 2023 08:21:15 +0000 (00:21 -0800)]
fixedsync.mdwn: fix stwcx. pseudocode
Jacob Lifshay [Mon, 4 Dec 2023 08:19:31 +0000 (00:19 -0800)]
ISACaller: add PowerISA spec. reference for real_page_size
Jacob Lifshay [Mon, 4 Dec 2023 08:18:10 +0000 (00:18 -0800)]
ISACaller: implement real_addr pseudo-code helper
Jacob Lifshay [Mon, 4 Dec 2023 08:17:02 +0000 (00:17 -0800)]
test/state: support memory in ExpectedState
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 20:30:27 +0000 (20:30 +0000)]
add initial lwarx unit test and pseudocode
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 18:42:57 +0000 (18:42 +0000)]
add WIP lrsc mdwn for stbcx
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 10:11:28 +0000 (10:11 +0000)]
take every opportunity *not* to go onto a separate line with commas
bad:
- log("is priv", instr_is_privileged, hex(self.msr.value),
- self.msr[MSRb.PR])
good:
- if instr_is_privileged and self.msr[MSRb.PR] == 1:
+ PR = self.msr[MSRb.PR]
+ log("is priv", instr_is_privileged, hex(self.msr.value), PR)
+ if instr_is_privileged and PR == 1:
Jacob Lifshay [Sun, 3 Dec 2023 08:51:13 +0000 (00:51 -0800)]
elf/simple_cases: add hello world statically-linked to glibc
it errors when reaching stwcx.
Jacob Lifshay [Sun, 3 Dec 2023 09:23:04 +0000 (01:23 -0800)]
caller.py: implement readlink/readlinkat syscalls
Jacob Lifshay [Sun, 3 Dec 2023 08:49:08 +0000 (00:49 -0800)]
caller.py: implement a pile of syscalls
this implements read, mmap, mmap2, brk, openat, uname, and newuname.
it also stubs out munmap, mprotect, and pkey_mprotect so programs
don't crash cpython.
Jacob Lifshay [Sun, 3 Dec 2023 08:47:05 +0000 (00:47 -0800)]
load_elf: set mem.heap_range so brk works
Jacob Lifshay [Sun, 3 Dec 2023 08:46:01 +0000 (00:46 -0800)]
Mem: speed up log_fancy by using make_sim_state_dict()
Jacob Lifshay [Sun, 3 Dec 2023 08:44:48 +0000 (00:44 -0800)]
ppc_flags: include more headers for uname, openat, etc.
Jacob Lifshay [Sun, 3 Dec 2023 08:42:51 +0000 (00:42 -0800)]
syscalls/__init__: log which syscall is made
this is very handy when looking at logs, since you no longer have to
manually translate syscall numbers to syscall names.
Jacob Lifshay [Sun, 3 Dec 2023 07:57:21 +0000 (23:57 -0800)]
MemMMap/SimState: speed up SimState.get_mem() for large memories
make MemMMap use struct.Struct.unpack_from to read a whole page at
once, rather than doing a sequence of loads. This makes an ELF
binary statically-linked to glibc able to run many instructions per
second rather than one every tens of seconds or so.
Jacob Lifshay [Sun, 3 Dec 2023 07:50:57 +0000 (23:50 -0800)]
MemMMap: log mmap calls
Jacob Lifshay [Sun, 3 Dec 2023 07:50:08 +0000 (23:50 -0800)]
mem.py: make MMapEmuBlock use hex for repr
Jacob Lifshay [Sun, 3 Dec 2023 07:45:41 +0000 (23:45 -0800)]
Mem: don't log loads when dumping, you'll see the memory dump anyway
this avoids a giant list of memory-load log messages immediately
followed by a much nicer memory dump, just show the memory dump
without logging every single load needed to create the memory dump.
This also makes memory-dumping faster for large memories.
Jacob Lifshay [Sun, 3 Dec 2023 03:23:22 +0000 (19:23 -0800)]
MemMMap: finish implementing brk_syscall
Jacob Lifshay [Wed, 13 Dec 2023 00:51:33 +0000 (16:51 -0800)]
caller.py: use yield from on is_ffirst_mode since it's a generator
Jacob Lifshay [Wed, 13 Dec 2023 00:50:27 +0000 (16:50 -0800)]
caller.py: fix undefined ffirst, hope I guessed the correct value
Jacob Lifshay [Wed, 13 Dec 2023 00:49:24 +0000 (16:49 -0800)]
caller.py: XLEN must be accessed as self.XLEN
Luke Kenneth Casson Leighton [Sat, 9 Dec 2023 06:47:26 +0000 (06:47 +0000)]
reenable tests
Luke Kenneth Casson Leighton [Sat, 9 Dec 2023 06:40:35 +0000 (06:40 +0000)]
bug #672: fix sv.minmax dd-ffirst-single unit test
Luke Kenneth Casson Leighton [Fri, 8 Dec 2023 15:38:26 +0000 (15:38 +0000)]
bug #672: invert testing in sv.minmax and add Rc=1
Luke Kenneth Casson Leighton [Fri, 8 Dec 2023 15:21:34 +0000 (15:21 +0000)]
bug #676: add sv.minmax dd-ffirst-single test
Shriya Sharma [Thu, 7 Dec 2023 20:15:13 +0000 (20:15 +0000)]
added a log func on the expected results for scalar ddffirst
Shriya Sharma [Thu, 7 Dec 2023 20:04:04 +0000 (20:04 +0000)]
added a log func on the expected results for scalar ddffirst
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 20:00:12 +0000 (20:00 +0000)]
add repr function to CR field
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 19:52:29 +0000 (19:52 +0000)]
correction to idx
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 19:52:02 +0000 (19:52 +0000)]
correction to ra
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 19:51:38 +0000 (19:51 +0000)]
correction to VL
Shriya Sharma [Thu, 7 Dec 2023 19:54:19 +0000 (19:54 +0000)]
added the expected results for scalar ddffirst
Shriya Sharma [Thu, 7 Dec 2023 19:43:50 +0000 (19:43 +0000)]
starting on the unit test for scalar ddffirst
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 19:28:29 +0000 (19:28 +0000)]
bug #1183: add test function sv_cmpi
based on https://bugs.libre-soc.org/show_bug.cgi?id=1183#c3
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 17:26:15 +0000 (17:26 +0000)]
bug #1183: attempt first ddffirst mapreduce mode
Luke Kenneth Casson Leighton [Thu, 7 Dec 2023 17:52:33 +0000 (17:52 +0000)]
correction syntax error
Luke Kenneth Casson Leighton [Tue, 5 Dec 2023 14:45:37 +0000 (14:45 +0000)]
bug 672: remove redundant/incorrect comment in pospopcount
Luke Kenneth Casson Leighton [Fri, 1 Dec 2023 09:05:12 +0000 (09:05 +0000)]
bug 672: pospopcount, cleanup, no functional change
Luke Kenneth Casson Leighton [Thu, 30 Nov 2023 15:26:00 +0000 (15:26 +0000)]
bug 672: pospopcount, correct NGI Grant
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 19:43:26 +0000 (19:43 +0000)]
bug #672: more code-comments
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 19:41:22 +0000 (19:41 +0000)]
comments
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 19:36:17 +0000 (19:36 +0000)]
bug #672: shorten pospopcount further
by setting VL=MVL=8 the sv.popcntd/sw=8 will wipe out the unused destinations
to zeros, so no need to clear them manually. loses one additional instruction
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 19:29:12 +0000 (19:29 +0000)]
bug #672: pospopcount working with large arrays
pospopcount is supposed to be able to handle long arrays of data,
but it turns out that sv.lbzu/pi/dw=8 was calculating an EA in 8-bit,
meaning that it wrapped around to a zero memory address.
now this is resolved the code which has been made shorter actually works
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 19:27:23 +0000 (19:27 +0000)]
bug #672: pospopcount using sv.lbzu/pi/dw=8 error
COMPLEX! this turns out to be a spec violation where RA (EA)
*must* be treated as 64-bit *NOT* have its width overridden
just because destination elwidth is set to 8-bit.
* source elwidth is supposed to apply to STORE
* dest elwidth is supposed to apply to LOAD
but those are MEMORY DATA not memory ADDRESSes they are
supposed to apply to.
TODO, most likely LDST_IDX needs fixing (RB may also need
an elwidth cancellation/override, have to check the spec)
Luke Kenneth Casson Leighton [Wed, 29 Nov 2023 15:06:18 +0000 (15:06 +0000)]
bug #672: shorter pospopcount but not fully working
variant on pospopcount but when 241 array items instead of 240 are used
it produces the wrong answer. under investigation
Jacob Lifshay [Wed, 29 Nov 2023 06:13:25 +0000 (22:13 -0800)]
ISACaller/parser: kludge: support (RA|0) when elwidth != 64
https://bugs.libre-soc.org/show_bug.cgi?id=1221
Jacob Lifshay [Wed, 29 Nov 2023 06:12:17 +0000 (22:12 -0800)]
isatables: update generated csvs
Luke Kenneth Casson Leighton [Tue, 28 Nov 2023 22:45:42 +0000 (22:45 +0000)]
bug #672: pospopcount finally got the right answer
forgot to add popcntd initially, lots of futzing around, still work to do
but it gives a correct answer now
Luke Kenneth Casson Leighton [Tue, 28 Nov 2023 21:03:43 +0000 (21:03 +0000)]
bug #672: fixing pospopcount assembler
there is a lot going on here, this is pushing the boundaries of
what ISAcaller can do (or hasnt been asked to do... until now)
* gbbd (gather bits and bytes double) had to be added
* sw=8,dw=64 had to be fixed (XLEN is actually 64 there
but source elements have to be ZERO-EXTENDED...)
* a bug in sv.addi/sw=8 was found
https://bugs.libre-soc.org/show_bug.cgi?id=1221
* some changes to setvl have to be made/written (!)
* sv.bc in CTR-reduction mode needs to potentially be fixed
or at least properly examined
Luke Kenneth Casson Leighton [Tue, 28 Nov 2023 20:41:01 +0000 (20:41 +0000)]
fix elwidth overrides when sw=8
the way that XLEN works is it must be MAX(sw,dw) which is not what
was happening, it was fixed at sw (source width)
Luke Kenneth Casson Leighton [Mon, 27 Nov 2023 13:55:53 +0000 (13:55 +0000)]
add gbbd (bmatflip) test case - just the one for now
Luke Kenneth Casson Leighton [Mon, 27 Nov 2023 13:45:12 +0000 (13:45 +0000)]
whitespace
Luke Kenneth Casson Leighton [Mon, 27 Nov 2023 13:29:18 +0000 (13:29 +0000)]
add gbbd to minor_22.csv, add OP_BMAT to power_enums.py
Luke Kenneth Casson Leighton [Mon, 27 Nov 2023 13:14:43 +0000 (13:14 +0000)]
add first gather instruction pseudocode
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 18:08:36 +0000 (18:08 +0000)]
project standard is to use c standard string specifiers NOT format
NOT php-style "f"
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 18:07:33 +0000 (18:07 +0000)]
project standard is to use c standard string specifiers NOT format
NOT php-style "f"
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 18:05:30 +0000 (18:05 +0000)]
project standard is to use c standard string specifiers NOT format
NOT php-style "f"
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 18:02:43 +0000 (18:02 +0000)]
project standard is to use c standard string specifiers NOT format
NOT php-style "f"
Luke Kenneth Casson Leighton [Sun, 3 Dec 2023 17:45:53 +0000 (17:45 +0000)]
bug 1228: dcbt* to match against nop, not dc* in ISACaller