Merge tag 'drm-misc-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixesgrafted

A number of fixes:
  - bridge:
    - samsung-dsim: fix GPIO lifetime
  - client: Null pointer dereference fix
  - imagination: error handling fix, page handling fix
  - nouveau: fix reference leaks, double-frees, out-of-bounds accesses,
    use-after-frees, don't reject config without SCDC,  a number of
    workarounds
  - virtio: fix memory leak, reference leaks, null pointer dereference,
    add pixel blend mode, cache coherency fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <self@mripard.dev>
Link: https://patch.msgid.link/arU22zzqUGDEco1y@houat

1 files changed, 97 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-mce b/Documentation/ABI/testing/sysfs-mce
new file mode 100644
index 000000000..83172f50e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-mce
@@ -0,0 +1,97 @@
+What:		/sys/devices/system/machinecheck/machinecheckX/
+Contact:	Andi Kleen <ak@linux.intel.com>
+Date:		Feb, 2007
+Description:
+		(X = CPU number)
+
+		Machine checks report internal hardware error conditions
+		detected by the CPU. Uncorrected errors typically cause a
+		machine check (often with panic), corrected ones cause a
+		machine check log entry.
+
+		For more details about the x86 machine check architecture
+		see the Intel and AMD architecture manuals from their
+		developer websites.
+
+		For more details about the architecture
+		see http://one.firstfloor.org/~andi/mce.pdf
+
+		Each CPU has its own directory.
+
+What:		/sys/devices/system/machinecheck/machinecheckX/bank<Y>
+Contact:	Andi Kleen <ak@linux.intel.com>
+Date:		Feb, 2007
+Description:
+		(Y bank number)
+
+		64bit Hex bitmask enabling/disabling specific subevents for
+		bank Y.
+
+		When a bit in the bitmask is zero then the respective
+		subevent will not be reported.
+
+		By default all events are enabled.
+
+		Note that BIOS maintain another mask to disable specific events
+		per bank.  This is not visible here
+
+What:		/sys/devices/system/machinecheck/machinecheckX/check_interval
+Contact:	Andi Kleen <ak@linux.intel.com>
+Date:		Feb, 2007
+Description:
+		The entries appear for each CPU, but they are truly shared
+		between all CPUs.
+
+		How often to poll for corrected machine check errors, in
+		seconds (Note output is hexadecimal). Default 5 minutes.
+		When the poller finds MCEs it triggers an exponential speedup
+		(poll more often) on the polling interval.  When the poller
+		stops finding MCEs, it triggers an exponential backoff
+		(poll less often) on the polling interval. The check_interval
+		variable is both the initial and maximum polling interval.
+		0 means no polling for corrected machine check errors
+		(but some corrected errors might be still reported
+		in other ways)
+
+What:		/sys/devices/system/machinecheck/machinecheckX/trigger
+Contact:	Andi Kleen <ak@linux.intel.com>
+Date:		Feb, 2007
+Description:
+		The entries appear for each CPU, but they are truly shared
+		between all CPUs.
+
+		Program to run when a machine check event is detected.
+		This is an alternative to running mcelog regularly from cron
+		and allows to detect events faster.
+
+What:		/sys/devices/system/machinecheck/machinecheckX/monarch_timeout
+Contact:	Andi Kleen <ak@linux.intel.com>
+Date:		Feb, 2007
+Description:
+		How long to wait for the other CPUs to machine check too on a
+		exception. 0 to disable waiting for other CPUs.
+
+		Unit: us
+
+What:		/sys/devices/system/machinecheck/machinecheckX/ignore_ce
+Contact:	Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
+Date:		Jun 2009
+Description:
+		Disables polling and CMCI for corrected errors.
+		All corrected events are not cleared and kept in bank MSRs.
+
+What:		/sys/devices/system/machinecheck/machinecheckX/dont_log_ce
+Contact:	Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
+Date:		Jun 2009
+Description:
+		Disables logging for corrected errors.
+		All reported corrected errors will be cleared silently.
+
+		This option will be useful if you never care about corrected
+		errors.
+
+What:		/sys/devices/system/machinecheck/machinecheckX/cmci_disabled
+Contact:	Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
+Date:		Jun 2009
+Description:
+		Disables the CMCI feature.