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linux/drivers/gpu/drm/i915
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Jani Nikula 0ea917819d drm/i915/dsi: fix VBT send packet port selection for ICL+ 
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)
2022-05-23 12:08:58 +03:00
..
display drm/i915/dsi: fix VBT send packet port selection for ICL+ 2022-05-23 12:08:58 +03:00
gem Merge tag 'drm-intel-gt-next-2022-04-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-04-28 15:32:29 +10:00
gt drm/i915/uc: Fix undefined behavior due to shift overflowing the constant 2022-05-19 12:50:29 +03:00
gvt Merge tag 'gvt-next-2022-04-29' of https://github.com/intel/gvt-linux into drm-intel-next 2022-04-29 12:58:41 +03:00
pxp drm/i915: include uapi/drm/i915_drm.h directly where needed 2022-03-17 20:06:04 +02:00
selftests Merge tag 'drm-intel-gt-next-2022-04-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-04-28 15:32:29 +10:00
.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_cmd_parser.c drm/i915: include linux/highmem.h and linux/swap.h where needed 2022-03-04 11:15:25 +02:00
i915_cmd_parser.h drm/i915: split out i915_cmd_parser.h from i915_drv.h 2022-01-10 15:43:09 +02:00
i915_config.c drm/i915: remove IS_ACTIVE 2021-10-07 11:04:05 -07:00
i915_debugfs.c Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
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: fix broken build 2022-04-08 10:36:11 +02:00
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-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
i915_driver.h drm/i915: Move intel_vtd_active and run_as_guest to i915_utils 2022-03-30 12:04:01 +01:00
i915_drm_client.c drm/i915/xehp: Add compute engine ABI 2022-04-29 14:30:27 -07:00
i915_drm_client.h drm/i915/xehp: Add compute engine ABI 2022-04-29 14:30:27 -07:00
i915_drv.h Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
i915_file_private.h drm/i915: Explicitly track DRM clients 2022-04-05 08:38:49 +01:00
i915_fixed.h
i915_gem.c drm/i915: Explicitly track DRM clients 2022-04-05 08:38:49 +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 Merge tag 'drm-intel-gt-next-2022-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next 2022-02-23 15:03:51 -05:00
i915_gem_evict.h Merge tag 'drm-intel-gt-next-2022-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next 2022-02-23 15:03:51 -05:00
i915_gem_gtt.c Merge tag 'drm-intel-gt-next-2022-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next 2022-02-23 15:03:51 -05:00
i915_gem_gtt.h drm/i915: Remove short-term pins from execbuf, v6. 2022-01-18 12:19:30 +01:00
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 Merge tag 'drm-intel-gt-next-2022-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next 2022-02-23 15:03:51 -05:00
i915_getparam.h drm/i915: split out i915_getparam.h from i915_drv.h 2022-01-10 15:43:05 +02:00
i915_gpu_error.c Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
i915_gpu_error.h Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
i915_ioc32.c drm/i915: split out i915_getparam.h from i915_drv.h 2022-01-10 15:43:05 +02:00
i915_ioc32.h
i915_ioctl.c drm/i915: split out i915_reg_read_ioctl() to i915_ioctl.[ch] 2022-01-21 09:59:22 +02:00
i915_ioctl.h drm/i915: split out i915_reg_read_ioctl() to i915_ioctl.[ch] 2022-01-21 09:59:22 +02:00
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 drm/i915/reg: split out icl_dsi_regs.h 2022-02-21 12:06:15 +02:00
i915_irq.h drm/i915/hpd: hide struct intel_hotplug_funcs 2022-02-09 13:39:35 +02:00
i915_memcpy.c
i915_memcpy.h
i915_mitigations.c drm/i915: move the DRIVER_* macros to i915_driver.[ch] 2022-02-10 11:44:25 +02:00
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 Merge tag 'drm-intel-gt-next-2022-02-17' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next 2022-02-23 15:03:51 -05:00
i915_params.c Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
i915_params.h drm/i915: add lmem_size modparam 2022-03-28 09:06:29 +01:00
i915_pci.c Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +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() 2022-05-19 12:10:57 +03:00
i915_perf.h drm/i915: Use a table for i915_init/exit (v2) 2021-07-22 12:05:17 +02:00
i915_perf_oa_regs.h drm/i915/perf: Express OA register ranges with i915_range 2022-02-02 07:52:23 -08:00
i915_perf_types.h drm/i915: Fix CFI violation with show_dynamic_id() 2022-05-19 12:10:57 +03:00
i915_pmu.c drm/i915/pmu: Drop redundant IS_VALLEYVIEW check in __get_rc6() 2022-04-06 15:47:38 +05:30
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/uapi: Add DRM_I915_QUERY_GEOMETRY_SUBSLICES 2022-04-15 08:00:55 -07:00
i915_query.h
i915_reg.h drm/i915/reg: fix undefined behavior due to shift overflowing the constant 2022-05-19 12:50:29 +03:00
i915_reg_defs.h drm/i915/gt: Remove GEN12_SFC_DONE_MAX from register defs header 2022-03-11 08:18:27 -08:00
i915_request.c dma-buf: add enum dma_resv_usage v4 2022-04-07 12:53:53 +02:00
i915_request.h drm/i915: Use struct vma_resource instead of struct vma_snapshot 2022-01-11 10:54:11 +01:00
i915_scatterlist.c drm: move the buddy allocator from i915 into common drm 2022-01-19 08:17:07 +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 drm/i915/fbc: Remove intel_fbc_global_disable() 2022-04-13 17:19:04 +03:00
i915_suspend.h
i915_sw_fence.c dma-buf: add enum dma_resv_usage v4 2022-04-07 12:53:53 +02:00
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/gt: Create per-tile RPS sysfs interfaces 2022-03-21 08:37:44 +00:00
i915_sysfs.h drm/i915/gt: create per-tile sysfs interface 2022-03-21 08:37:39 +00:00
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: sanity check the size 2022-04-21 10:10:35 +01:00
i915_ttm_buddy_manager.h drm/i915/selftests: exercise mmap migration 2022-03-01 08:50:48 +00:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c drm/i915: Move intel_vtd_active and run_as_guest to i915_utils 2022-03-30 12:04:01 +01:00
i915_utils.h drm/i915: Split i915_run_as_guest into x86 and non-x86 2022-04-06 09:02:37 -07:00
i915_vgpu.c drm/i915: Add object locking to i915_gem_evict_for_node and i915_gem_evict_something, v2. 2022-01-18 12:18:03 +01:00
i915_vgpu.h
i915_vma.c Merge tag 'drm-intel-gt-next-2022-05-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-06 16:16:14 +10:00
i915_vma.h drm/i915: use IOMEM_ERR_PTR() directly 2022-05-04 13:10:49 +01:00
i915_vma_resource.c drm/i915: Remove the vm open count 2022-03-07 08:50:03 +01:00
i915_vma_resource.h drm/i915: Remove the vm open count 2022-03-07 08:50:03 +01:00
i915_vma_types.h drm/i915: Remove the vma refcount 2022-03-07 08:50:52 +01:00
intel_device_info.c Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
intel_device_info.h Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
intel_dram.c drm/i915: Use str_yes_no() 2022-03-02 08:48:13 -08:00
intel_dram.h
intel_gvt.c drm/i915/gvt: Fix the compiling error when CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n 2022-04-28 17:01:17 -04:00
intel_gvt.h drm/i915/gvt: move the gvt code into kvmgt.ko 2022-04-21 07:36:56 -04:00
intel_gvt_mmio_table.c Merge tag 'gvt-next-2022-04-21-for-christoph' of https://github.com/intel/gvt-linux into drm-intel-next 2022-04-25 11:20:57 +03:00
intel_mchbar_regs.h drm/i915: Clean up SSKPD/MLTR defines 2022-02-18 08:42:17 +02:00
intel_memory_region.c Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
intel_memory_region.h Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
intel_pch.c drm/i915: Move intel_vtd_active and run_as_guest to i915_utils 2022-03-30 12:04:01 +01:00
intel_pch.h drm for 5.18-rc1 2022-03-24 16:19:43 -07:00
intel_pci_config.h drm/i915: split out PCI config space registers from i915_reg.h 2022-01-10 16:17:46 +02:00
intel_pcode.c drm/i915: Swap ret and status returned from skl_pcode_request 2022-04-11 16:47:08 +03:00
intel_pcode.h drm/i915/pcode: rename sandybridge_pcode_* to snb_pcode_* 2022-01-13 15:20:57 +02:00
intel_pm.c drm/i915: program wm blocks to at least blocks required per line 2022-04-20 16:49:07 +03:00
intel_pm.h drm/i915/display/adlp: Fix programing of PIPE_MBUS_DBOX_CTL 2022-03-30 13:34:46 -07:00
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: wire up the object offset 2022-03-16 17:50:38 +00:00
intel_region_ttm.h drm/i915/ttm: wire up the object offset 2022-03-16 17:50:38 +00:00
intel_runtime_pm.c drm/i915/selftests: Disable runtime pm wakeref tracking for the mock device 2022-02-11 13:22:10 +02:00
intel_runtime_pm.h drm/i915/selftests: Disable runtime pm wakeref tracking for the mock device 2022-02-11 13:22:10 +02:00
intel_sbi.c drm/i915: Only include i915_reg.h from .c files 2022-02-02 07:59:54 -08:00
intel_sbi.h drm/i915: rename intel_sideband.[ch] to intel_sbi.[ch] 2021-10-14 18:05:04 +03:00
intel_step.c Merge drm/drm-next into drm-intel-next 2022-04-11 16:01:56 +03:00
intel_step.h drm/i915: Rename GT_STEP to GRAPHICS_STEP 2021-11-02 13:05:40 -07:00
intel_uncore.c Merge drm/drm-next into drm-intel-gt-next 2022-04-21 13:48:26 -04:00
intel_uncore.h drm/i915: Prepare for multiple GTs 2022-03-21 08:37:36 +00:00
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/wopcm: Handle pre-programmed WOPCM registers 2022-01-26 11:47:24 -08:00
intel_wopcm.h
Kconfig Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
Kconfig.debug drm/i915: Improve debug Kconfig texts a bit 2021-07-06 10:10:07 +02:00
Kconfig.profile drm/i915: Fail too long user submissions by default 2021-03-26 01:01:27 +01:00
Kconfig.unstable drm/i915: Kill the fake lmem support 2022-02-18 22:31:46 -08:00
Makefile Merge tag 'drm-intel-next-2022-05-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2022-05-11 11:00:15 +10:00
TODO.txt drm/i915: add gem/gt TODO 2021-03-26 09:24:31 +01:00
vlv_sideband.c drm/i915: Only include i915_reg.h from .c files 2022-02-02 07:59:54 -08:00
vlv_sideband.h drm/i915: split out vlv sideband registers from i915_reg.h 2022-01-10 16:17:50 +02:00
vlv_sideband_reg.h drm/i915: split out vlv sideband registers from i915_reg.h 2022-01-10 16:17:50 +02:00
vlv_suspend.c drm/i915: Use str_on_off() 2022-03-02 08:48:23 -08:00
vlv_suspend.h