Remove superfluous mb() calls.

Fix DMAT used for vbr_hdr.

Fix DMAT used for vbr_ack

KASAN fixes.

Remove mops_supported.

Remove mops_supported.

Remove mops_supported.

Remove mops_supported.

In D54943#1256825, @andrew wrote:

Can you split out enabling MOPS & using it into separate changes? There is a risk one of the mem*_early changes is missing & it would be easier to revert a change to add them rather than everything that depends on MOPS.

Address review comments.

Address review comments.

Split into two changes.

Address review comments.

Address review comments.

Handle kernel MOE exceptions.

In D54560#1252311, @fuz wrote:

Please document these changes in share/man/man7/simd.7 as requested earlier. Add a new key (say M) for "MOPS" and perhaps explain what that is.

Add missing license information to resolver files.

Add license info to memmove_resolver.c

Indentation fixes.

Make ifunc_arg argument const.

Move ifunc_arg from private namespace and fix const-ness.

Make ifunc_arg argument const.

In D54560#1247986, @fuz wrote:

This doesn't build for me:

lib/libc/aarch64/string/memcpy_resolver.c:11:6: error: use of undeclared identifier 'ifunc_arg'
   11 |         if (ifunc_arg->_hwcap2 & HWCAP2_MOPS)
      |             ^
1 error generated.
*** Error code 1

Fix indentation issues.

Address review comments. Rework ifunc resolvers to remove ARCHLEVEL leftovers.

Address style issues.

Address style issues.

Address review comments.

Address review comments.

In D54559#1246503, @jrtc27 wrote:

Will you also be implementing this for csu for static binaries (often forgotten, including by me in the past)?

Address review comments.

In D54559#1246537, @andrew wrote:

In D54559#1246536, @sarah.walker2_arm.com wrote:

In D54559#1246501, @andrew wrote:

There should be a followup change to sys/arm64/include/ifunc.h to update DEFINE_UIFUNC. We can also use this to simplify the ifunc handlers in sys/crypto/sha2/sha512c.c and sys/crypto/sha2/sha256c.c

Can you give more detail on what you want here please?

ifunc.h has the DEFINE_UIFUNC macro where the first two arguments in the generated function signature will need an update. The other two files use DEFINE_UIFUNC and call elf_aux_info to read the HWCAPs, but could be updated after this change (and a similar change for static binaries)

Address review comments.

Address review comments.

Address review comments.

Address review comments. Update SHA IFUNC usage.

In D54559#1246501, @andrew wrote:

There should be a followup change to sys/arm64/include/ifunc.h to update DEFINE_UIFUNC. We can also use this to simplify the ifunc handlers in sys/crypto/sha2/sha512c.c and sys/crypto/sha2/sha256c.c

Fix spe_info indexing in threading mode

Address review comments

In D53738#1228675, @andrew wrote:

How does the buffering work in threading mode on SMP? It looks like there is still a per-CPU buffer for SPE to write to where I would expect it to be per-thread. e.g. If userspace maps the CPU0 buffer, then the thread migrates to CPU1 would userspace still get SPE data?

Remove dead code

Address style issues

Fix off-by-one error with CPU_FFS()

Rebase & address review comments

Address review comments