Merge branch 'next' into for-linus

Prepare input updates for 5.15 merge window.

Merge tag 'v5.13' into next

Sync up with the mainline to get the latest parport API.

Merge tag 'v5.13-rc3' into asoc-5.13

Linux 5.13-rc3

Merge drm/drm-next into drm-intel-gt-next

Pulling in -rc2 fixes and TTM changes that next upcoming patches depend
on.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge tag 'v5.13-rc2' into spi-5.13

Linux 5.13-rc2

Merge branch 'fixes-rc1' into fixes

Merge drm/drm-next into drm-intel-next

Time to get back in sync...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging to get v5.12 fixes. Requested for vmwgfx.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Start this new release drm-misc-fixes branch

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'x86_misc_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 tool update from Borislav Petkov:
"A new kcpuid tool to dump the raw CPUID leafs of a CPU.

It has

Merge tag 'x86_misc_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 tool update from Borislav Petkov:
"A new kcpuid tool to dump the raw CPUID leafs of a CPU.

It has the CPUID bit definitions in a separate csv file which allows
for adding support for new CPUID leafs and bits without having to
update the tool.

The main use case for the tool is hw enablement on preproduction x86
hardware"

* tag 'x86_misc_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/x86/kcpuid: Add AMD leaf 0x8000001E
tools/x86/kcpuid: Check last token too
selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S
tools/x86/kcpuid: Add AMD Secure Encryption leaf
tools/x86: Add a kcpuid tool to show raw CPU features

show more ...

tools/x86: Add a kcpuid tool to show raw CPU features

End users frequently want to know what features their processor
supports, independent of what the kernel supports.

/proc/cpuinfo is great. It i

tools/x86: Add a kcpuid tool to show raw CPU features

End users frequently want to know what features their processor
supports, independent of what the kernel supports.

/proc/cpuinfo is great. It is omnipresent and since it is provided by
the kernel it is always as up to date as the kernel. But, it could be
ambiguous about processor features which can be disabled by the kernel
at boot-time or compile-time.

There are some user space tools showing more raw features, but they are
not bound with kernel, and go with distros. Many end users are still
using old distros with new kernels (upgraded by themselves), and may
not upgrade the distros only to get a newer tool.

So here arise the need for a new tool, which
* shows raw CPU features read from the CPUID instruction
* will be easier to update compared to existing userspace
tooling (perhaps distributed like perf)
* inherits "modern" kernel development process, in contrast to some
of the existing userspace CPUID tools which are still being developed
without git and distributed in tarballs from non-https sites.
* Can produce output consistent with /proc/cpuinfo to make comparison
easier.

The CPUID leaf definitions are kept in an .csv file which allows for
updating only that file to add support for new feature leafs.

This is based on prototype code from Borislav Petkov
(http://sr71.net/~dave/intel/stupid-cpuid.c).

[ bp:
- Massage, add #define _GNU_SOURCE to fix implicit declaration of
function ‘strcasestr' warning
- remove superfluous newlines
- fallback to cpuid.csv in the current dir if none found
- fix typos
- move comments over the lines instead of sideways. ]

Originally-from: Borislav Petkov <bp@alien8.de>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/1614928878-86075-1-git-send-email-feng.tang@intel.com

show more ...