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eb7bf11e8ef1fd12ec3d8b0f48b749fc45a0347a
android_kernel_xiaomi_sm8450/drivers/gpu/drm/i915
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Jani Nikula eb7bf11e8e drm/i915/opregion: check port number bounds for SWSCI display power state 
commit ea958422291de248b9e2eaaeea36004e84b64043 upstream.

The mapping from enum port to whatever port numbering scheme is used by
the SWSCI Display Power State Notification is odd, and the memory of it
has faded. In any case, the parameter only has space for ports numbered
[0..4], and UBSAN reports bit shift beyond it when the platform has port
F or more.

Since the SWSCI functionality is supposed to be obsolete for new
platforms (i.e. ones that might have port F or more), just bail out
early if the mapped and mangled port number is beyond what the Display
Power State Notification can support.

Fixes: 9c4b0a6831 ("drm/i915: add opregion function to notify bios of encoder enable/disable")
Cc: <stable@vger.kernel.org> # v3.13+
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4800
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/cc363f42d6b5a5932b6d218fefcc8bdfb15dbbe5.1644489329.git.jani.nikula@intel.com
(cherry picked from commit 24a644ebbfd3b13cda702f98907f9dd123e34bf9)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 12:01:01 +01:00
..
display
drm/i915/opregion: check port number bounds for SWSCI display power state
2022-02-23 12:01:01 +01:00
gem
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
gt
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
gvt
treewide: Change list_sort to use const pointers
2021-09-30 10:11:04 +02:00
selftests
treewide: Change list_sort to use const pointers
2021-09-30 10:11:04 +02:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
i915_active_types.h
…
i915_active.c
drm/i915: Fix crash in auto_retire
2021-05-19 10:13:19 +02:00
i915_active.h
drm/i915: Provide a fastpath for waiting on vma bindings
2020-09-07 13:29:19 +03:00
i915_buddy.c
…
i915_buddy.h
…
i915_cmd_parser.c
drm/i915: Revert "drm/i915/gem: Asynchronous cmdparser"
2021-08-08 09:05:21 +02:00
i915_config.c
drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT
2020-05-09 12:57:57 +01:00
i915_debugfs_params.c
drm/i915/params: switch to device specific parameters
2020-06-22 23:26:40 +03:00
i915_debugfs_params.h
…
i915_debugfs.c
drm/i915/gem: Serialise debugfs i915_gem_objects with ctx->mutex
2020-09-30 14:24:37 -04:00
i915_debugfs.h
drm/i915: have *_debugfs_init() functions return void.
2020-03-18 16:27:22 +01:00
i915_drv.c
drm/i915/dp: Track pm_qos per connector
2021-01-17 14:17:04 +01:00
i915_drv.h
drm/i915: Wedge the GPU if command parser setup fails
2021-03-17 17:06:19 +01:00
i915_fixed.h
…
i915_gem_evict.c
drm/i915: Handle idling during i915_gem_evict_something busy loops
2020-05-13 14:39:41 -07:00
i915_gem_gtt.c
drm/i915: Update dma-attributes for our sg DMA
2020-07-07 11:00:47 +01:00
i915_gem_gtt.h
drm/i915: Remove PIN_UPDATE for i915_vma_pin
2020-05-21 17:33:51 +01:00
i915_gem.c
drm/i915/gem: Pull phys pread/pwrite implementations to the backend
2020-11-12 19:47:30 -05:00
i915_gem.h
drm/i915: Use per object locking in execbuf, v12.
2020-09-07 14:30:07 +03:00
i915_getparam.c
drm/i915: add syncobj timeline support
2020-08-17 16:16:51 -04:00
i915_globals.c
…
i915_globals.h
…
i915_gpu_error.c
drm/i915: Only access SFC_DONE when media domain is not fused off
2021-08-18 08:59:13 +02:00
i915_gpu_error.h
drm/i915: Move the engine mask to intel_gt_info
2020-07-08 21:07:11 +01:00
i915_ioc32.c
i915 compat ioctl(): just use drm_ioctl_kernel()
2020-05-01 20:35:26 -04:00
i915_ioc32.h
…
i915_irq.c
drm/i915: Introduce intel_hpd_hotplug_irqs()
2020-09-15 18:01:35 +03:00
i915_irq.h
…
i915_memcpy.c
drm/i915: remove always-defined CONFIG_AS_MOVNTDQA
2020-04-09 00:01:59 +09:00
i915_memcpy.h
…
i915_mitigations.c
drm/i915: Allow the sysadmin to override security mitigations
2021-01-19 18:27:18 +01:00
i915_mitigations.h
drm/i915: Allow the sysadmin to override security mitigations
2021-01-19 18:27:18 +01:00
i915_mm.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
i915_params.c
drm/i915: Initial implementation of PSR2 selective fetch
2020-08-17 16:17:15 -04:00
i915_params.h
drm/i915: Initial implementation of PSR2 selective fetch
2020-08-17 16:17:15 -04:00
i915_pci.c
drm/i915: Restore ILK-M RPS support
2020-10-29 14:20:20 -04:00
i915_perf_types.h
drm/i915/perf: Schedule oa_config after modifying the contexts
2020-03-30 18:20:34 +01:00
i915_perf.c
i915/perf: Start hrtimer only if sampling the OA buffer
2021-03-25 09:04:08 +01:00
i915_perf.h
…
i915_pmu.c
drm/i915/pmu: Don't grab wakeref when enabling events
2021-02-03 23:28:42 +01:00
i915_pmu.h
…
i915_priolist_types.h
drm/i915/gt: Prevent timeslicing into unpreemptable requests
2020-06-16 11:34:23 +03:00
i915_pvinfo.h
…
i915_query.c
drm/i915/sseu: Move sseu_info under gt_info
2020-07-08 21:13:09 +01:00
i915_query.h
…
i915_reg.h
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
i915_request.c
drm/i915/request: fix early tracepoints
2021-10-06 15:55:54 +02:00
i915_request.h
drm/i915: Check for rq->hwsp validity after acquiring RCU lock
2021-01-27 11:54:56 +01:00
i915_scatterlist.c
…
i915_scatterlist.h
…
i915_scheduler_types.h
drm/i915: Drop no-semaphore boosting
2020-05-14 06:14:33 +01:00
i915_scheduler.c
drm/i915: Don't set queue-priority hint when supressing the reschedule
2020-05-25 15:40:26 +03:00
i915_scheduler.h
drm/i915: Mark concurrent submissions with a weak-dependency
2020-05-11 10:54:04 -07:00
i915_selftest.h
drm/i915/gem: Implement legacy MI_STORE_DATA_IMM
2020-05-04 15:15:04 +01:00
i915_suspend.c
drm/i915: Nuke CACHE_MODE_0 save/restore
2020-09-14 16:20:57 +03:00
i915_suspend.h
…
i915_sw_fence_work.c
drm/i915: Immediately execute the fenced work
2020-03-25 13:05:04 +00:00
i915_sw_fence_work.h
drm/i915: Immediately execute the fenced work
2020-03-25 13:05:04 +00:00
i915_sw_fence.c
treewide: Make all debug_obj_descriptors const
2020-09-24 21:56:25 +02:00
i915_sw_fence.h
…
i915_switcheroo.c
drm/i915/switcheroo: use struct drm_device based logging
2020-04-08 13:49:35 +03:00
i915_switcheroo.h
…
i915_syncmap.c
…
i915_syncmap.h
…
i915_sysfs.c
…
i915_sysfs.h
…
i915_trace_points.c
…
i915_trace.h
drm/i915: Drop i915_request.i915 backpointer
2020-06-03 13:53:39 +01:00
i915_user_extensions.c
…
i915_user_extensions.h
…
i915_utils.c
drm/i915: Don't taint when using fault injection
2020-07-06 19:21:07 +01:00
i915_utils.h
drm/i915: Remove unused inline function drain_delayed_work()
2020-07-15 10:16:44 +01:00
i915_vgpu.c
…
i915_vgpu.h
…
i915_vma_types.h
drm/i915: Export ppgtt_bind_vma
2020-07-03 15:14:35 +01:00
i915_vma.c
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
i915_vma.h
drm/i915: Make sure execbuffer always passes ww state to i915_vma_pin.
2020-09-07 14:31:13 +03:00
intel_device_info.c
drm/i915: disable all display features when no display
2020-09-11 13:16:48 +03:00
intel_device_info.h
drm/i915/rkl: Handle HTI
2020-08-17 16:16:07 -04:00
intel_dram.c
drm/i915/dram: prefer struct drm_device based logging
2020-04-08 13:49:35 +03:00
intel_dram.h
…
intel_gvt.c
drm/i915/params: switch to device specific parameters
2020-06-22 23:26:40 +03:00
intel_gvt.h
…
intel_memory_region.c
drm/i915/region: fix max size calculation
2020-10-29 14:20:17 -04:00
intel_memory_region.h
…
intel_pch.c
drm/i915/dg1: Add fake PCH
2020-07-14 02:47:21 -07:00
intel_pch.h
drm/i915/dg1: Add fake PCH
2020-07-14 02:47:21 -07:00
intel_pm.c
drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk()
2022-01-16 09:14:24 +01:00
intel_pm.h
drm/i915: Fix includes and local vars order
2020-05-22 14:40:35 +01:00
intel_region_lmem.c
drm/i915/params: switch to device specific parameters
2020-06-22 23:26:40 +03:00
intel_region_lmem.h
…
intel_runtime_pm.c
drm/i915: Fix the GT fence revocation runtime PM logic
2021-03-30 14:31:55 +02:00
intel_runtime_pm.h
drm/i915: Fix the GT fence revocation runtime PM logic
2021-03-30 14:31:55 +02:00
intel_sideband.c
drm/i915: Nuke dpio_phy_iosf_port[]
2020-09-11 16:59:49 +03:00
intel_sideband.h
…
intel_uncore.c
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
intel_uncore.h
drm/i915: Flush TLBs before releasing backing store
2022-01-29 10:26:10 +01:00
intel_wakeref.c
drm/i915: Extend intel_wakeref to support delayed puts
2020-03-23 12:51:05 +00:00
intel_wakeref.h
drm/i915: Extend intel_wakeref to support delayed puts
2020-03-23 12:51:05 +00:00
intel_wopcm.c
drm/i915: Remove cnl pre-prod workarounds
2020-05-04 18:44:52 +03:00
intel_wopcm.h
…
Kconfig
drm/i915: use vmap in i915_gem_object_map
2020-10-18 09:27:10 -07:00
Kconfig.debug
drm/i915: Exclude low pages (128KiB) of stolen from use
2020-10-21 08:32:28 -04:00
Kconfig.profile
drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT
2020-05-09 12:57:57 +01:00
Kconfig.unstable
…
Makefile
drm/i915: Allow the sysadmin to override security mitigations
2021-01-19 18:27:18 +01:00
vlv_suspend.c
…
vlv_suspend.h
…