Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v7.2-rc1 2026-06-02T23:09:16+00:00 2026-06-02T23:09:16+00:00 Dave Airlie airlied@redhat.com 2026-06-02T23:09:11+00:00 urn:sha1:edbea3eff5b45e32d5c398583637b8dfef136832 Xe related: - Fix Xe oops in suspend/shutdown when display was disabled (Jani) Display in general: - More general refactor towards display separation (Jani) - Preparation for fix Adaptive-Sync SDP for PR with Link ON + Auxless-ALPM (Ankit) - PSR related fixes and improvements (Jouni) - Use polling when irqs are unavailable (Michal) - Split bandwidth params into platform- and display-IP-specific structs (Gustavo) - Revert "drm/i915/backlight: Remove try_vesa_interface" (Suraj) - Casf & scaler refactoring (Michal) - Add support for pipe background color (Maarten) - General clean-ups (Maarten) - Sanitize DP link capability change handling (Imre) - Multiple BW QGV fixes (Ville) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/ahhFE5Co5PdZQKG8@intel.com 2026-05-27T08:31:07+00:00 Jani Nikula jani.nikula@intel.com 2026-05-26T12:55:58+00:00 urn:sha1:ad5190d6f35db62fba97a63872e3b2b4cf546782 It's confusing that intel_display_power.[ch] exposes two groups of interfaces, one named intel_power_domains_*() and one intel_display_power_*(). Unify on the latter, based on the file name, but also because it's more generic. This makes the caller side easier to follow. Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://patch.msgid.link/8fae4b0e3476aeffb0164215b7e0f0ae1d825f72.1779800132.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-26T22:07:19+00:00 Jani Nikula jani.nikula@intel.com 2026-05-25T11:05:53+00:00 urn:sha1:6df932f162d74599b33705a77908674ea4c447ec xe_display_flush_cleanup_work() is a bit of an oddball function in xe display code. There shouldn't be anything this specific or xe specific. While I'm not sure what the correct refactor for the function should be, move it to shared display code for starters, next to the eerily similar but slightly different intel_has_pending_fb_unpin() that is only called from i915 core. The main goal here is to unblock some refactors on for_each_intel_crtc(). v2: Add FIXME comment (Ville) Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260525110553.651208-1-jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-25T23:11:14+00:00 Dave Airlie airlied@redhat.com 2026-05-25T23:10:51+00:00 urn:sha1:57b5fd7cb273c98f685a15710393a662c21ef94d Driver Changes: - drm/xe/oa: Fix exec_queue leak on width check in stream open (Shuicheng Lin) - drm/xe/memirq: Drop cached iosys_map for MEMIRQ status (Michal Wajdeczko) - drm/xe/memirq: Drop cached iosys_map for MEMIRQ mask (Michal Wajdeczko) - drm/xe/memirq: Dump all source pages if MSI-X (Michal Wajdeczko) - drm/xe/memirq: Update diagnostic message (Michal Wajdeczko) - drm/xe/memirq: Reduce buffer size (Michal Wajdeczko) - drm/xe/memirq: Use IRQ page from HW engine definition (Michal Wajdeczko) - drm/xe/memirq: Update GuC initialization and IRQ handler (Michal Wajdeczko) - drm/xe/memirq: Make page layout macros private (Michal Wajdeczko) - drm/xe: Add IRQ page to HW engine definition (Michal Wajdeczko) - drm/xe/guc: Use xe_device_is_l2_flush_optimized() (Gustavo Sousa) - drm/xe/multi_queue: Fix secondary queue error case (Niranjana Vishwanathapura) - drm/xe/reg_sr: Do sanity check for MCR vs non-MCR (Gustavo Sousa) - drm/xe/mcr: Extract reg_in_steering_type_ranges() (Gustavo Sousa) - drm/xe/kunit: Use KUNIT_EXPECT_EQ() in xe_wa_gt() (Gustavo Sousa) - drm/xe: Extract xe_hw_engine_setup_reg_lrc() (Gustavo Sousa) - drm/xe: Define and use MCR version of COMMON_SLICE_CHICKEN4 (Gustavo Sousa) - drm/xe: Define and use MCR version of COMMON_SLICE_CHICKEN1 (Gustavo Sousa) - drm/xe: Define CACHE_MODE_1 as MCR register (Gustavo Sousa) - drm/xe/pf: Fix CFI failure in debugfs access (Mohanram Meenakshisundaram) - drm/xe/vf: Fix signature of print functions (Michal Wajdeczko) - drm/xe: Make drm_driver const (Michal Wajdeczko) - drm/xe/display: Drop xe_display_driver_set_hooks() (Michal Wajdeczko) - drm/xe/display: Add macro with display driver features (Michal Wajdeczko) - drm/xe/display: Add macro with display driver ops (Michal Wajdeczko) - drm/xe/display: Prefer forward declarations (Michal Wajdeczko) - drm/xe/display: Drop xe_display_driver_remove() stub (Michal Wajdeczko) - drm/xe: Drop unused drm/drm_atomic_helper.h include (Michal Wajdeczko) - drm/xe/sriov: Mark NVL as SR-IOV capable (Jakub Kolakowski) - drm/xe/gt_idle: Use NSEC_PER_MSEC instead of float literal (Shuicheng Lin) - drm/xe/gsc: Fix double-free of managed BO in error path (Shuicheng Lin) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com> Link: https://patch.msgid.link/ag9RLujZiYYnSc_F@fedora 2026-05-16T09:19:23+00:00 Jani Nikula jani.nikula@intel.com 2026-05-13T16:13:31+00:00 urn:sha1:bbba23373bcca2133d945fbb8893c8cb1d377365 Call the platform specific display irq handler hooks via intel_display_irq_handler(). v3: Pure vfunc change (Ville) v2: Rebase, handle LPE audio in ack (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/d728f04a47532898c278ef208692ea173b446106.1778688699.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-16T09:19:23+00:00 Jani Nikula jani.nikula@intel.com 2026-05-13T16:13:29+00:00 urn:sha1:c7ae1bdfcec9e48c2386cfaad1787d2812052b7a Add a number of *_display_irq_handler() functions to group together the various display irq handler parts for the platforms, to declutter the core i915 irq code from the details. Add master_ctl to struct intel_display_irq_state, and pass the state pointer to the handlers where necessary. The handler function signatures are intentionally the same to allow for more refactoring. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/5088a9a658ce9a57049c999ee2ebababd7536b6c.1778688699.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-16T09:19:23+00:00 Jani Nikula jani.nikula@intel.com 2026-05-13T16:13:27+00:00 urn:sha1:002a330f5b9815ad0698ca8e7ecd3c81478d4c98 Call the platform specific display irq postinstall hooks via intel_display_irq_postinstall(). Relocate the gen11 HAS_DISPLAY() check to intel_display_irq_postinstall(), as the funcs pointer won't be initialized for no display. v2: - relocate HAS_DISPLAY() (Sashiko) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/65f1ad73628fb6dbdf6e782493eaecb1d61abaf7.1778688699.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-16T09:19:23+00:00 Jani Nikula jani.nikula@intel.com 2026-05-13T16:13:26+00:00 urn:sha1:56f0919c4324a3d9c07e321b17d9e430094fb35d Introduce display irq hooks with struct intel_display_irq_funcs, and add the ->reset hook as the first thing. Call the reset hooks from i915 and xe core via intel_display_irq_reset(). Relocate the gen8 and gen11 HAS_DISPLAY() check to intel_display_irq_reset(), as the funcs pointer won't be initialized for no display. Note: We're increasingly moving to the territory of not touching display at all if there's no display or it has been fused off. Which is good, but care must be taken to not have hardware setup required also for no display cases in display code. Also note that the line is fuzzy for older platforms, but there we also don't have fusing. v2: - make the structs static const (Sashiko) - relocate HAS_DISPLAY() (Sashiko) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/f9d75e8af92b5550a9d07f29491be5313b7c866b.1778688699.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-16T07:54:38+00:00 Jani Nikula jani.nikula@intel.com 2026-05-15T16:09:20+00:00 urn:sha1:7c3eb9f47533220888a67266448185fd0775d4da The xe driver keeps track of whether to probe display, and whether display hardware is there, using xe->info.probe_display. It gets set to false if there's no display after intel_display_device_probe(). However, the display may also be disabled via fuses, detected at a later time in intel_display_device_info_runtime_init(). In this case, the xe driver does for_each_intel_crtc() on uninitialized mode config in xe_display_flush_cleanup_work(), leading to a NULL pointer dereference, and generally calls display code with display info cleared. Check for intel_display_device_present() after intel_display_device_info_runtime_init(), and reset xe->info.probe_display as necessary. Also do unset_display_features() for completeness, although display runtime init has already done that. This will need to be unified across all cases later. Move intel_display_device_info_runtime_init() call slightly earlier, similar to i915, to avoid a bunch of unnecessary setup for no display cases. Note #1: The xe driver has no business doing low level display plumbing like for_each_intel_crtc() to begin with. It all needs to happen in display code. Note #2: The actual bug is present already in commit 44e694958b95 ("drm/xe/display: Implement display support"), but the oops was likely introduced later at commit ddf6492e0e50 ("drm/xe/display: Make display suspend/resume work on discrete"). Fixes: 44e694958b95 ("drm/xe/display: Implement display support") Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/7904 Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/6150 Cc: stable@vger.kernel.org # v6.8+ Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260515160920.1082842-1-jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2026-05-15T05:37:16+00:00 Dave Airlie airlied@redhat.com 2026-05-15T05:36:59+00:00 urn:sha1:1f863fe67343e2f45fc0af75ac94c3705bdf6537 - A Revert of a Kconfig patch that broke some builds (Jani) - New fb_pin abstraction for xe and i915 fb transparent handling (Ville, Tvrtko) - Skip inactive MST connectors on HDCP cases (Suraj) - Reduce redundant intel_panel_fixed_mode (Ankit) - Some general fixes (Imre, Chaitanya) - Reorganize display documentation (Jani) - Start switching to display specific reg types (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/agXbLMtMECnKy-YV@intel.com