Pull drm fixes from Dave Airlie:
 "Lots going on for rc2, ivpu has a bunch of stabilisation and debugging
  work, then amdgpu and xe are the main fixes. i915, exynos have a few,
  then some misc panel and bridge fixes.

  Worth mentioning are three regressions. One of the nouveau fixes in
  6.7 for a serious deadlock had side effects, so I guess we will bring
  back the deadlock until I can figure out what should be done properly.
  There was a scheduler regression vs amdgpu which was reported in a few
  places and is now fixed. There was an i915 vs simpledrm problem
  resulting in black screens, that is reverted also.

  I'll be working on a proper nouveau fix, it kinda looks like one of
  those cases where someone tried to use an atomic where they should
  have probably used a lock, but I'll see.

  fb:
   - fix simpledrm/i915 regression by reverting change

  scheduler:
   - fix regression affecting amdgpu users due to sched draining

  nouveau:
   - revert 6.7 deadlock fix as it has side effects

  dp:
   - fix documentation warning

  ttm:
   - fix dummy page read on some platforms

  bridge:
   - anx7625 suspend fix
   - sii902x: fix probing and audio registration
   - parade-ps8640: fix suspend of bridge, aux fixes
   - samsung-dsim: avoid using FORCE_STOP_STATE

  panel:
   - simple add missing bus flags
   - fix samsung-s6d7aa0 flags

  amdgpu:
   - AC/DC power supply tracking fix
   - Don't show invalid vram vendor data
   - SMU 13.0.x fixes
   - GART fix for umr on systems without VRAM
   - GFX 10/11 UNORD_DISPATCH fixes
   - IPS display fixes (required for S0ix on some platforms)
   - Misc fixes

  i915:
   - DSI sequence revert to fix GitLab #10071 and DP test-pattern fix
   - Drop -Wstringop-overflow (broken on GCC11)

  ivpu:
   - fix recovery/reset support
   - improve submit ioctl stability
   - fix dev open/close races on unbind
   - PLL disable reset fix
   - deprecate context priority param
   - improve debug buffer logging
   - disable buffer sharing across VPU contexts
   - free buffer sgt on unbind
   - fix missing lock around shmem vmap
   - add better boot diagnostics
   - add more debug prints around mapping
   - dump MMU events in case of timeout

  v3d:
   - NULL ptr dereference fix

  exynos:
   - fix stack usage
   - fix incorrect type
   - fix dt typo
   - fix gsc runtime resume

  xe:
   - Make an ops struct static
   - Fix an implicit 0 to NULL conversion
   - A couple of 32-bit fixes
   - A migration coherency fix for Lunar Lake.
   - An error path vm id leak fix
   - Remove PVC references in kunit tests"

* tag 'drm-fixes-2024-01-27' of git://anongit.freedesktop.org/drm/drm: (66 commits)
  Revert "nouveau: push event block/allowing out of the fence context"
  drm: bridge: samsung-dsim: Don't use FORCE_STOP_STATE
  drm/sched: Drain all entities in DRM sched run job worker
  drm/amd/display: "Enable IPS by default"
  drm/amd: Add a DC debug mask for IPS
  drm/amd/display: Disable ips before dc interrupt setting
  drm/amd/display: Replay + IPS + ABM in Full Screen VPB
  drm/amd/display: Add IPS checks before dcn register access
  drm/amd/display: Add Replay IPS register for DMUB command table
  drm/amd/display: Allow IPS2 during Replay
  drm/amdgpu/gfx11: set UNORD_DISPATCH in compute MQDs
  drm/amdgpu/gfx10: set UNORD_DISPATCH in compute MQDs
  drm/amd/amdgpu: Assign GART pages to AMD device mapping
  drm/amd/pm: Fetch current power limit from FW
  drm/amdgpu: Fix null pointer dereference
  drm/amdgpu: Show vram vendor only if available
  drm/amd/pm: update the power cap setting
  drm/amdgpu: Avoid fetching vram vendor information
  drm/amdgpu/pm: Fix the power source flag error
  drm/amd/display: Fix uninitialized variable usage in core_link_ 'read_dpcd() & write_dpcd()' functions
  ...

Arm FF-A fixes for v6.8

Quite a few fixes addressing issues around missing RW lock initialisation
in ffa_setup_partitions(), missing check for xa_load() return value,
use of xa_insert instead of xa_store to flag case of duplicate insertion.
It also simplifies ffa_partitions_cleanup() with xa_for_each() and xa_erase()
instead of xa_extract() and kfree(). Finally it includes fixes around
handling of partitions setup failures during initialisation.

* tag 'ffa-fixes-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_ffa: Handle partitions setup failures
  firmware: arm_ffa: Use xa_insert() and check for result
  firmware: arm_ffa: Simplify ffa_partitions_cleanup()
  firmware: arm_ffa: Check xa_load() return value
  firmware: arm_ffa: Add missing rwlock_init() for the driver partition
  firmware: arm_ffa: Add missing rwlock_init() in ffa_setup_partitions()

Link: https://lore.kernel.org/r/20240122161652.3551159-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This reverts commit 60aebc9559492cea6a9625f514a8041717e3a2e4.

Commit 60aebc9559492cea ("drivers/firmware: Move sysfb_init() from
device_initcall to subsys_initcall_sync") messes up initialization order
of the graphics drivers and leads to blank displays on some systems. So
revert the commit.

To make the display drivers fully independent from initialization
order requires to track framebuffer memory by device and independently
from the loaded drivers. The kernel currently lacks the infrastructure
to do so.

Reported-by: Jaak Ristioja <jaak@ristioja.ee>
Closes: https://lore.kernel.org/dri-devel/ZUnNi3q3yB3zZfTl@P70.localdomain/T/#t
Reported-by: Huacai Chen <chenhuacai@loongson.cn>
Closes: https://lore.kernel.org/dri-devel/20231108024613.2898921-1-chenhuacai@loongson.cn/
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10133
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: stable@vger.kernel.org # v6.5+
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240123120937.27736-1-tzimmermann@suse.de

Make ffa_setup_partitions() fail, cleanup and return an error when the Host
partition setup fails: in such a case ffa_init() itself will fail.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-6-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

While adding new partitions descriptors to the XArray the outcome of the
stores should be checked and, in particular, it has also to be ensured
that an existing entry with the same index was not already present, since
partitions IDs are expected to be unique.

Use xa_insert() instead of xa_store() since it returns -EBUSY when the
index is already in use and log an error when that happens.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-5-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

On cleanup iterate the XArrays with xa_for_each() and remove the existent
entries with xa_erase(), finally destroy the XArray itself.

Remove partition_count field from drv_info since no more used anywhwere.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-4-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Add a check to verify the result of xa_load() during the partition
lookups done while registering/unregistering the scheduler receiver
interrupt callbacks and while executing the main scheduler receiver
interrupt callback handler.

Fixes: 0184450b8b1e ("firmware: arm_ffa: Add schedule receiver callback mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-3-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Add the missing rwlock initialization for the FF-A partition associated
the driver in ffa_setup_partitions(). It will the primary scheduler
partition in the host or the VM partition in the virtualised environment.
IOW, it corresponds to the partition with VM ID == drv_info->vm_id.

Fixes: 1b6bf41b7a65 ("firmware: arm_ffa: Add notification handling mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-2-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Add the missing rwlock initialization for the individual FF-A partition
information in ffa_setup_partitions().

Fixes: 0184450b8b1e ("firmware: arm_ffa: Add schedule receiver callback mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-1-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Rollback currently supported SCMI clock protocol version to v2.0 since
some of the mandatory v3.0 features are indeed still not supported yet.

Fixes: b5efc28a754d ("firmware: arm_scmi: Add protocol versioning checks")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240109181716.2338636-1-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>