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linux-stable/drivers/gpu/drm/i915
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Jani Nikula e031d608bf drm/i915/dsi: fix VBT send packet port selection for ICL+ 
commit 0ea917819d upstream.

The VBT send packet port selection was never updated for ICL+ where the
2nd link is on port B instead of port C as in VLV+ DSI.

First, single link DSI needs to use the configured port instead of
relying on the VBT sequence block port. Remove the hard-coded port C
check here and make it generic. For reference, see commit f915084edc
("drm/i915: Changes related to the sequence port no for") for the
original VLV specific fix.

Second, the sequence block port number is either 0 or 1, where 1
indicates the 2nd link. Remove the hard-coded port C here for 2nd
link. (This could be a "find second set bit" on DSI ports, but just
check the two possible options.)

Third, sanity check the result with a warning to avoid a NULL pointer
dereference.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5984
Cc: stable@vger.kernel.org # v4.19+
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
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/20220520094600.2066945-1-jani.nikula@intel.com
(cherry picked from commit 08c59dde71)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09 10:26:24 +02:00
..
display drm/i915/dsi: fix VBT send packet port selection for ICL+ 2022-06-09 10:26:24 +02:00
gem drm/i915: Sunset igpu legacy mmap support based on GRAPHICS_VER_FULL 2022-04-20 09:36:28 +02:00
gt i915/guc/reset: Make __guc_reset_context aware of guilty engines 2022-05-25 09:59:06 +02:00
gvt Merge tag 'gvt-fixes-2022-01-13' of https://github.com/intel/gvt-linux into drm-intel-fixes 2022-02-14 09:50:24 +00:00
pxp drm/i915/pxp: Hold RPM wakelock during PXP unbind 2022-01-10 13:54:53 +00:00
selftests drm/i915: Ensure i915_vma tests do not get -ENOSPC with the locking changes. 2021-12-20 16:34:20 +01:00
.gitignore
i915_active.c drm/i915: Remove unused bits of i915_vma/active api 2021-12-20 16:26:09 +01:00
i915_active.h drm/i915: Remove unused bits of i915_vma/active api 2021-12-20 16:26:09 +01:00
i915_active_types.h drm/i915/active: remove useless i915_utils.h include 2021-12-13 12:04:44 +02:00
i915_buddy.c drm/i915/buddy: add some pretty printing 2021-08-20 09:40:22 +01:00
i915_buddy.h drm/i915/buddy: add some pretty printing 2021-08-20 09:40:22 +01:00
i915_cmd_parser.c drm/i915: Correct the docs for intel_engine_cmd_parser 2021-07-21 11:49:36 -04:00
i915_config.c drm/i915: remove IS_ACTIVE 2021-10-07 11:04:05 -07:00
i915_debugfs.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_debugfs.h
i915_debugfs_params.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_debugfs_params.h
i915_deps.c drm/i915: Break out the i915_deps utility 2021-12-22 08:52:57 +01:00
i915_deps.h drm/i915: Break out the i915_deps utility 2021-12-22 08:52:57 +01:00
i915_driver.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_driver.h drm/i915/driver: add i915_driver_ prefix to functions 2021-11-17 11:47:55 +02:00
i915_drv.h drm/i915: Fix renamed struct field 2022-04-08 13:58:21 +02:00
i915_fixed.h
i915_gem.c drm/i915: Force ww lock for i915_gem_object_ggtt_pin_ww, v2. 2021-12-20 16:33:03 +01:00
i915_gem.h drm/i915: Break out dma_resv ww locking utilities to separate files 2021-06-17 14:22:59 +01:00
i915_gem_evict.c drm/i915/guc: Update intel_gt_wait_for_idle to work with GuC 2021-07-22 10:07:23 -07:00
i915_gem_gtt.c drm/i915: Use direction definition DMA_BIDIRECTIONAL instead of PCI_DMA_BIDIRECTIONAL 2021-09-30 16:19:45 +02:00
i915_gem_gtt.h
i915_gem_ww.c drm/i915: Break out dma_resv ww locking utilities to separate files 2021-06-17 14:22:59 +01:00
i915_gem_ww.h drm/i915: Ditch the i915_gem_ww_ctx loop member 2021-08-20 09:39:41 +01:00
i915_getparam.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_gpu_error.c drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL 2022-01-31 09:34:50 +00:00
i915_gpu_error.h drm/i915: Avoid allocating a page array for the gpu coredump 2021-11-26 08:26:08 +01:00
i915_ioc32.c
i915_ioc32.h
i915_iosf_mbi.h drm/i915: abstraction for iosf to compile on all archs 2021-10-27 00:32:01 -07:00
i915_irq.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_irq.h drm/i915/irq: reduce inlines to reduce header dependencies 2021-08-20 10:28:31 +03:00
i915_memcpy.c
i915_memcpy.h
i915_mitigations.c
i915_mitigations.h
i915_mm.c drm/i915: Skip remap_io_mapping() for non-x86 platforms 2021-12-08 13:26:14 -08:00
i915_mm.h drm/i915: Fix header test for !CONFIG_X86 2022-02-07 12:56:49 +00:00
i915_module.c drm-misc-next for 5.17: 2021-12-09 09:31:45 +01:00
i915_params.c drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
i915_params.h drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
i915_pci.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_pci.h drm/i915/pci: rename functions to have i915_pci prefix 2021-08-26 10:50:19 +03:00
i915_perf.c drm/i915: Fix CFI violation with show_dynamic_id() 2022-06-09 10:25:55 +02:00
i915_perf.h drm/i915: Use a table for i915_init/exit (v2) 2021-07-22 12:05:17 +02:00
i915_perf_types.h drm/i915: Fix CFI violation with show_dynamic_id() 2022-06-09 10:25:55 +02:00
i915_pmu.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_pmu.h drm/i915: Use a table for i915_init/exit (v2) 2021-07-22 12:05:17 +02:00
i915_priolist_types.h
i915_pvinfo.h
i915_query.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_query.h
i915_reg.h drm/i915/dmc: Add MMIO range restrictions 2022-05-25 09:59:04 +02:00
i915_request.c Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
i915_request.h drm/i915: Avoid using the i915_fence_array when collecting dependencies 2021-12-22 08:14:30 +01:00
i915_scatterlist.c drm/i915: Introduce refcounted sg-tables 2021-11-01 18:10:49 +01:00
i915_scatterlist.h drm/i915: Introduce refcounted sg-tables 2021-11-01 18:10:49 +01:00
i915_scheduler.c drm/i915: move scheduler slabs to direct module init/exit 2021-07-28 17:18:56 +02:00
i915_scheduler.h drm/i915: move scheduler slabs to direct module init/exit 2021-07-28 17:18:56 +02:00
i915_scheduler_types.h drm/i915/guc: Implement GuC priority management 2021-07-27 17:32:27 -07:00
i915_selftest.h
i915_suspend.c
i915_suspend.h
i915_sw_fence.c drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_sw_fence.h drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_sw_fence_work.c drm/i915: Drop stealing of bits from i915_sw_fence function pointer 2021-11-30 17:52:15 -08:00
i915_sw_fence_work.h drm/i915: Drop error handling from dma_fence_work 2021-07-16 21:47:39 +02:00
i915_switcheroo.c drm/i915/driver: add i915_driver_ prefix to functions 2021-11-17 11:47:55 +02:00
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
i915_sysfs.h
i915_trace.h drm/i915/trace: split out display trace to a separate file 2021-12-09 11:21:46 +02:00
i915_trace_points.c
i915_ttm_buddy_manager.c drm/i915/buddy: add some pretty printing 2021-08-20 09:40:22 +01:00
i915_ttm_buddy_manager.h drm/i915: support forcing the page size with lmem 2021-06-30 13:24:29 +01:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c
i915_utils.h drm for 5.16-rc1 2021-11-02 16:47:49 -07:00
i915_vgpu.c
i915_vgpu.h
i915_vma.c drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
i915_vma.h drm/i915: Remove pages_mutex and intel_gtt->vma_ops.set/clear_pages members, v3. 2021-12-20 16:31:02 +01:00
i915_vma_snapshot.c drm/i915: Update error capture code to avoid using the current vma state 2021-12-01 16:53:22 +01:00
i915_vma_snapshot.h drm/i915: Update error capture code to avoid using the current vma state 2021-12-01 16:53:22 +01:00
i915_vma_types.h Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
intel_device_info.c Merge tag 'drm-intel-next-2021-12-14' of ssh://git.freedesktop.org/git/drm/drm-intel into drm-next 2021-12-17 15:23:49 +10:00
intel_device_info.h Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
intel_dram.c drm/i915: Remove memory frequency calculation 2021-10-19 10:45:52 +03:00
intel_dram.h
intel_gvt.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
intel_gvt.h
intel_memory_region.c drm/i915: Test all device memory on probing 2021-12-14 15:08:20 +05:30
intel_memory_region.h drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_pch.c drm/i915: s/JSP2/ICP2/ PCH 2022-02-28 11:59:01 +00:00
intel_pch.h drm/i915: s/JSP2/ICP2/ PCH 2022-02-28 11:59:01 +00:00
intel_pcode.c drm/i915: split out intel_pcode.[ch] to separate file 2021-10-14 18:04:17 +03:00
intel_pcode.h drm/i915: split out intel_pcode.[ch] to separate file 2021-10-14 18:04:17 +03:00
intel_pm.c drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency() 2022-06-06 08:47:51 +02:00
intel_pm.h drm/i915: Workaround broken BIOS DBUF configuration on TGL/RKL 2022-02-07 12:56:50 +00:00
intel_pm_types.h drm/i915: split out intel_pm_types.h 2021-12-03 11:28:12 +02:00
intel_region_ttm.c drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_region_ttm.h drm/i915/ttm: Drop region reference counting 2021-11-25 09:36:16 +01:00
intel_runtime_pm.c drm/i915: Fix oops due to missing stack depot 2022-02-07 12:56:49 +00:00
intel_runtime_pm.h drm/i915: intel_runtime_pm.h does not actually need intel_display.h 2021-08-20 10:28:49 +03:00
intel_sbi.c drm/i915: rename intel_sideband.[ch] to intel_sbi.[ch] 2021-10-14 18:05:04 +03:00
intel_sbi.h drm/i915: rename intel_sideband.[ch] to intel_sbi.[ch] 2021-10-14 18:05:04 +03:00
intel_step.c drm/i915: Rename GT_STEP to GRAPHICS_STEP 2021-11-02 13:05:40 -07:00
intel_step.h drm/i915: Rename GT_STEP to GRAPHICS_STEP 2021-11-02 13:05:40 -07:00
intel_uncore.c drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
intel_uncore.h drm/i915: Flush TLBs before releasing backing store 2022-01-25 20:06:06 +02:00
intel_wakeref.c
intel_wakeref.h drm/i915/guc: Take engine PM when a context is pinned with GuC submission 2021-10-15 10:37:26 -07:00
intel_wopcm.c drm/i915: Use to_gt() helper 2021-12-17 21:51:59 -08:00
intel_wopcm.h
Kconfig Merge tag 'gvt-fixes-2022-01-13' of https://github.com/intel/gvt-linux into drm-intel-fixes 2022-02-14 09:50:24 +00:00
Kconfig.debug drm/i915: Improve debug Kconfig texts a bit 2021-07-06 10:10:07 +02:00
Kconfig.profile
Kconfig.unstable
Makefile Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2021-12-24 06:14:51 +10:00
TODO.txt
vlv_sideband.c drm/i915: abstraction for iosf to compile on all archs 2021-10-27 00:32:01 -07:00
vlv_sideband.h drm/i915: split out vlv sideband to a separate file 2021-10-14 12:22:55 +03:00
vlv_suspend.c
vlv_suspend.h