[GIT PULL] x86/fpu for 6.4

[Dave Hansen]

Hi Linus,

Please pull some x86/fpu changes for 6.4. There's no _actual_ kernel
functionality here.  This expands the documentation around AMX support
including some code examples. The example code also exposed the fact
that hardware architecture constants as part of the ABI, but there's
no easy place that they get defined for apps.  Adding them to a uabi
header will eventually make life easier for consumers of the ABI.

--

The following changes since commit e8d018dd0257f744ca50a729e3d042cf2ec9da65:

  Linux 6.3-rc3 (2023-03-19 13:27:55 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_fpu_for_6.4

for you to fetch changes up to 5fbff260755750559aa12a30f6fa7f8a863666f1:

  Documentation/x86: Explain the state component permission for guests (2023-03-22 13:08:02 -0700)

----------------------------------------------------------------
 * Improve AMX documentation along with example code
 * Explicitly make some hardware constants part of the uabi

----------------------------------------------------------------
Chang S. Bae (4):
      Documentation/x86: Explain the purpose for dynamic features
      x86/arch_prctl: Add AMX feature numbers as ABI constants
      Documentation/x86: Add the AMX enabling example
      Documentation/x86: Explain the state component permission for guests

 Documentation/x86/xstate.rst      | 100 ++++++++++++++++++++++++++++++++++++++
 arch/x86/include/uapi/asm/prctl.h |   3 ++
 2 files changed, 103 insertions(+)