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Luis Machado ca65640ff7 sme: Enable SME registers and pseudo-registers
The SME (Scalable Matrix Extension) [1] exposes a new matrix register ZA with
variable sizes.  It also exposes a new mode called streaming mode.

Similarly to SVE, the ZA register size is dictated by a vector length, but the
SME vector length is called streaming vetor length. The total size for
ZA in a given moment is svl x svl.

In streaming mode, the SVE registers have their sizes based on svl rather than
the regular vector length (vl).

The feature detection is controlled by the HWCAP2_SME bit, but actual support
should be validated by attempting a ptrace call for one of the new register
sets: NT_ARM_ZA and NT_ARM_SSVE.

Due to its large size, the ZA register is exposed as a vector of bytes, but we
introduce a number of pseudo-registers that gives various different views
into the ZA contents. These can be arranged in a couple categories: tiles and
tile slices.

Tiles are matrices the same size or smaller than ZA.  Tile slices are vectors
which map to ZA's rows/columns in different ways.

A new dynamic target description is provided containing the ZA register, the SVG
register and the SVCR register.  The size of ZA, like the SVE vector registers,
is based on the vector length register SVG (VG for SVE).

This patch enables SME register support for gdb.

[1] https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/scalable-matrix-extension-armv9-a-architecture

Co-Authored-By: Ezra Sitorus <ezra.sitorus@arm.com>
Reviewed-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
2023-10-04 16:23:39 +01:00
bfd Automatic date update in version.in 2023-10-04 00:00:32 +00:00
binutils MIPS: Fix `readelf -S bintest' test for n64 targets 2023-10-03 12:41:02 +01:00
config config/debuginfod.m4: Add check for libdebuginfod 0.188 2023-09-27 15:11:13 -04:00
contrib
cpu sim --enable-cgen-maint 2023-08-19 12:41:32 +09:30
elfcpp
etc
gas Fix memory leak in RiscV assembler. 2023-10-02 16:23:14 +01:00
gdb sme: Enable SME registers and pseudo-registers 2023-10-04 16:23:39 +01:00
gdbserver sme: Enable SME registers and pseudo-registers 2023-10-04 16:23:39 +01:00
gdbsupport Remove explanatory comments from includes 2023-09-20 11:45:16 -06:00
gnulib
gold gold: Use char16_t, char32_t instead of uint16_t, uint32_t as character types 2023-09-06 17:20:20 -07:00
gprof regen config 2023-08-12 10:27:57 +09:30
gprofng gprofng: 30834 improve disassembly output for call and branch instructions 2023-09-21 18:56:30 -07:00
include aarch64: system register aliasing detection 2023-10-04 12:21:53 +01:00
intl regen config 2023-08-12 10:27:57 +09:30
ld Use bfd_get_current_time in places where it is suitable 2023-10-02 13:24:05 +01:00
libbacktrace regen config 2023-08-12 10:27:57 +09:30
libctf regen config 2023-08-12 10:27:57 +09:30
libdecnumber regen config 2023-08-12 10:27:57 +09:30
libiberty
libsframe regen config 2023-08-12 10:27:57 +09:30
opcodes aarch64: Refactor system register data 2023-10-04 12:21:53 +01:00
readline
sim Simplify definition of GUILE 2023-08-26 13:09:38 -06:00
texinfo
zlib regen config 2023-08-12 10:27:57 +09:30
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ChangeLog Revert "2.41 Release sources" 2023-08-02 12:06:23 +01:00
compile
config-ml.in MSP430: Add -fno-exceptions multilib 2023-08-12 10:24:26 +09:30
config.guess kvx: New port. 2023-08-16 14:22:54 +01:00
config.rpath
config.sub kvx: New port. 2023-08-16 14:22:54 +01:00
configure generated bfd files, and kvx regen 2023-08-17 21:44:04 +09:30
configure.ac kvx: New port. 2023-08-16 14:22:54 +01:00
COPYING
COPYING3
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djunpack.bat
install-sh
libtool.m4 FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts 2023-08-12 10:25:06 +09:30
lt~obsolete.m4
ltgcc.m4
ltmain.sh Do not use HAVE_DOS_BASED_FILE_SYSTEM for Cygwin. 2023-08-12 10:25:06 +09:30
ltoptions.m4
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MAINTAINERS
Makefile.def gccrs: Add gcc-check-target check-rust 2023-08-12 10:25:06 +09:30
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Makefile.tpl toplevel: Substitute GDCFLAGS instead of using CFLAGS 2023-08-12 10:27:44 +09:30
makefile.vms
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src-release.sh src-release.sh (SIM_SUPPORT_DIRS): Add libsframe, libctf/swap.h and gnulib 2023-09-06 04:15:23 +02:00
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