Junxiao Chang 8cadce97bf drm/i915/gsc: mei interrupt top half should be in irq disabled context ... MEI GSC interrupt comes from i915. It has top half and bottom half. Top half is called from i915 interrupt handler. It should be in irq disabled context. With RT kernel, by default i915 IRQ handler is in threaded IRQ. MEI GSC top half might be in threaded IRQ context. generic_handle_irq_safe API could be called from either IRQ or process context, it disables local IRQ then calls MEI GSC interrupt top half. This change fixes A380/A770 GPU boot hang issue with RT kernel. Fixes: 1e3dc1d862 ("drm/i915/gsc: add gsc as a mei auxiliary device") Tested-by: Furong Zhou <furong.zhou@intel.com> Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Junxiao Chang <junxiao.chang@intel.com> Link: https://lore.kernel.org/r/20250425151108.643649-1-junxiao.chang@intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (cherry picked from commit dccf655f69) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>		2025-07-01 08:10:46 +03:00
..
selftests
shaders	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
uc	drm/i915/guc: Handle race condition where wakeref count drops below 0	2025-06-02 12:19:14 +03:00
gen2_engine_cs.c	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
gen2_engine_cs.h	drm/i915/gt: s/gen3/gen2/	2024-10-15 17:49:24 +03:00
gen6_engine_cs.c	drm/i915/gt: Move engine registers to their own header	2022-01-11 14:03:25 -08:00
gen6_engine_cs.h
gen6_ppgtt.c	drm/i915: use pat_index instead of cache_level	2023-05-11 17:38:55 +02:00
gen6_ppgtt.h	drm/i915: Create a dummy object for gen6 ppgtt	2021-11-19 17:38:03 +00:00
gen6_renderstate.c
gen7_renderclear.c	drm/i915: remove all IS_<PLATFORM>_GT<N>() macros	2024-10-24 13:14:37 +03:00
gen7_renderclear.h
gen7_renderstate.c
gen8_engine_cs.c	Merge tag 'drm-intel-gt-next-2024-04-26' of https://anongit.freedesktop.org/git/drm/drm-intel into drm-next	2024-04-30 14:40:43 +10:00
gen8_engine_cs.h	drm/i915/gt: Support aux invalidation on all engines	2023-07-26 14:35:32 +02:00
gen8_ppgtt.c	Linux 6.9-rc5	2024-04-22 14:35:52 +10:00
gen8_ppgtt.h	drm/i915: use pat_index instead of cache_level	2023-05-11 17:38:55 +02:00
gen8_renderstate.c
gen9_renderstate.c
hsw_clear_kernel.c
intel_breadcrumbs_types.h	drm/i915: Track gt pm wakerefs	2023-11-20 12:36:56 +01:00
intel_breadcrumbs.c	drm/i915: use NULL for zero wakeref_t instead of plain integer 0	2024-10-04 10:29:24 +03:00
intel_breadcrumbs.h	drm/i915/guc: Direct all breadcrumbs for a class to single breadcrumbs	2021-07-27 17:31:35 -07:00
intel_context_param.h	drm/i915/gem: Set the watchdog timeout directly in intel_context_set_gem (v2)	2021-07-08 19:43:49 +02:00
intel_context_sseu.c	drm/i915/lrc: move lrc_get_runtime() to intel_lrc.c	2022-02-17 15:42:09 +02:00
intel_context_types.h	drm/i915: Support replaying GPU hangs with captured context image	2024-05-16 07:37:05 +00:00
intel_context.c	drm/i915: Support replaying GPU hangs with captured context image	2024-05-16 07:37:05 +00:00
intel_context.h	drm/i915: Support replaying GPU hangs with captured context image	2024-05-16 07:37:05 +00:00
intel_engine_cs.c	Merge tag 'drm-intel-gt-next-2025-03-12' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-25 08:21:07 +10:00
intel_engine_heartbeat.c	Merge drm/drm-next into drm-misc-next-fixes	2024-02-26 15:12:53 +01:00
intel_engine_heartbeat.h	drm/i915: Reset GPU immediately if submission is disabled	2021-07-27 17:31:45 -07:00
intel_engine_pm.c	drm/i915/gt: Reset queue_priority_hint on parking	2024-03-28 12:16:16 -04:00
intel_engine_pm.h	drm/i915: Move for_each_engine* out of i915_drv.h	2023-11-06 09:04:52 +00:00
intel_engine_regs.h	drm/i915/pmu: Add support for gen2	2024-10-15 17:51:00 +03:00
intel_engine_stats.h	drm/i915/pmu: Add a name to the execlists stats	2021-10-28 11:02:18 -07:00
intel_engine_types.h	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
intel_engine_user.c	drm/i915/gsc: Mark internal GSC engine with reserved uabi class	2023-11-29 10:23:11 +02:00
intel_engine_user.h
intel_engine.h	drm/i915/gt: Remove unused execlists_unwind_incomplete_requests	2024-11-04 16:31:44 -05:00
intel_execlists_submission.c	treewide: Switch/rename to timer_delete[_sync]()	2025-04-05 10:30:12 +02:00
intel_execlists_submission.h	drm/i915: Fix up locking around dumping requests lists	2023-01-30 15:48:21 -05:00
intel_ggtt_fencing.c	Merge tag 'drm-intel-gt-next-2025-02-26' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-13 07:54:41 +10:00
intel_ggtt_fencing.h
intel_ggtt_gmch.c	drm/i915/ggtt: Add intel_ggtt_read_entry()	2025-04-02 02:17:30 +03:00
intel_ggtt_gmch.h	drm/i915/gt: Re-do the intel-gtt split	2022-06-22 15:52:56 -07:00
intel_ggtt.c	drm/i915/ggtt: Add intel_ggtt_read_entry()	2025-04-02 02:17:30 +03:00
intel_gpu_commands.h	drm/i915/gt: Add Wa_14019789679	2024-08-05 22:33:39 +01:00
intel_gsc.c	drm/i915/gsc: mei interrupt top half should be in irq disabled context	2025-07-01 08:10:46 +03:00
intel_gsc.h	drm/i915/gt: reconcile Excess struct member kernel-doc warnings	2024-01-10 11:56:19 +02:00
intel_gt_buffer_pool_types.h
intel_gt_buffer_pool.c	drm/i915: add a dedicated workqueue inside drm_i915_private	2023-06-10 06:33:11 +03:00
intel_gt_buffer_pool.h
intel_gt_ccs_mode.c	drm/i915/gt: Fix CCS id's calculation for CCS mode setting	2024-05-29 11:35:38 +03:00
intel_gt_ccs_mode.h	drm/i915/gt: Automate CCS Mode setting during engine resets	2024-05-06 14:15:24 -04:00
intel_gt_clock_utils.c	drm/i915: Use REG_BIT() & co. for gen9+ timestamp freq registers	2025-03-04 15:39:37 +01:00
intel_gt_clock_utils.h
intel_gt_debugfs.c	drm/i915/gt: Create per-gt debugfs files	2023-03-21 10:09:31 +01:00
intel_gt_debugfs.h	drm/i915/debugfs: Do not return '0' if there is nothing to return	2022-03-22 10:08:20 +00:00
intel_gt_defines.h	i915/drm/gt: Move the gt defines in the gt directory	2023-08-02 15:41:31 +02:00
intel_gt_engines_debugfs.c	drm/i915: Move for_each_engine* out of i915_drv.h	2023-11-06 09:04:52 +00:00
intel_gt_engines_debugfs.h	drm/i915: rename debugfs_engines files	2021-09-18 23:33:22 -07:00
intel_gt_irq.c	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
intel_gt_irq.h
intel_gt_mcr.c	Merge tag 'drm-intel-gt-next-2025-03-12' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-25 08:21:07 +10:00
intel_gt_mcr.h	drm/i915: Update IP_VER(12, 50)	2024-03-22 14:14:52 -07:00
intel_gt_pm_debugfs.c	Merge tag 'drm-intel-gt-next-2024-10-23' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2024-10-25 05:57:38 +10:00
intel_gt_pm_debugfs.h	drm/i915/debugfs: Do not return '0' if there is nothing to return	2022-03-22 10:08:20 +00:00
intel_gt_pm_irq.c	drm/i915/mtl: Use primary GT's irq lock for media GT	2022-09-12 15:23:12 +03:00
intel_gt_pm_irq.h
intel_gt_pm.c	drm/i915/reset: add intel_gt_gpu_reset_clobbers_display() helper	2025-03-05 12:48:22 +02:00
intel_gt_pm.h	drm/i915: use NULL for zero wakeref_t instead of plain integer 0	2024-10-04 10:29:24 +03:00
intel_gt_print.h	drm/i915/gt: More use of GT specific print helpers	2023-10-10 15:40:24 -07:00
intel_gt_regs.h	drm/i915: Reoder gen9+ timestamp freq register bits	2025-03-04 15:39:38 +01:00
intel_gt_requests.c	drm/i915: add a dedicated workqueue inside drm_i915_private	2023-06-10 06:33:11 +03:00
intel_gt_requests.h	drm/i915: use linux/stddef.h due to "isystem: trim/fixup stdarg.h and other headers"	2021-09-06 09:31:23 +02:00
intel_gt_sysfs_pm.c	drm/i915/slpc: Add sysfs for SLPC power profiles	2025-02-04 18:10:56 -05:00
intel_gt_sysfs_pm.h	drm/i915/gt: Create per-tile RC6 sysfs interface	2022-03-21 08:37:42 +00:00
intel_gt_sysfs.c	drm/i915: Make kobj_type structures constant	2023-02-17 11:50:28 +02:00
intel_gt_sysfs.h	drm/i915: Fix CFI violations in gt_sysfs	2022-10-27 19:14:53 +02:00
intel_gt_types.h	drm/i915/gt: Mark the GT as dead when mmio is unreliable	2024-08-09 12:51:17 +01:00
intel_gt.c	drm/i915: Extract gen8_report_fault()	2025-03-04 15:39:33 +01:00
intel_gt.h	drm/i915/gt: remove stray declaration of intel_gt_release_all()	2024-08-17 11:24:46 +02:00
intel_gtt.c	drm/i915/gt: Remove trailing blank lines	2025-03-19 02:40:49 +01:00
intel_gtt.h	drm/i915/ggtt: Add intel_ggtt_read_entry()	2025-04-02 02:17:30 +03:00
intel_hwconfig.h	drm/i915/guc: Add fetch of hwconfig blob	2022-03-17 19:51:48 -07:00
intel_llc_types.h
intel_llc.c	drm/i915/slpc: Let's fix the PCODE min freq table setup for SLPC	2022-09-06 14:51:43 -04:00
intel_llc.h
intel_lrc_reg.h	drm/i915/gt: Move engine registers to their own header	2022-01-11 14:03:25 -08:00
intel_lrc.c	drm/i915/gt: Remove trailing blank lines	2025-03-19 02:40:49 +01:00
intel_lrc.h	drm/i915/perf: Fix OA filtering logic for GuC mode	2022-10-27 12:35:56 -07:00
intel_migrate_types.h	drm/i915/gt: Pipelined page migration	2021-06-17 14:23:05 +01:00
intel_migrate.c	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
intel_migrate.h	drm/i915: use pat_index instead of cache_level	2023-05-11 17:38:55 +02:00
intel_mocs.c	Merge tag 'drm-intel-gt-next-2025-05-08-1' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-05-09 11:39:27 +10:00
intel_mocs.h	drm/i915/gt: Add "intel_" as prefix in set_mocs_index()	2021-09-20 08:23:27 -07:00
intel_ppgtt.c	drm/i915: Invalidate the TLBs on each GT	2023-08-02 15:56:44 +02:00
intel_rc6_types.h	drm/i915/mtl: Synchronize i915/BIOS on C6 enabling	2023-03-24 08:43:32 -07:00
intel_rc6.c	drm/i915: Disable RPG during live selftest	2025-04-07 11:00:07 +03:00
intel_rc6.h	drm/i915/mtl: Synchronize i915/BIOS on C6 enabling	2023-03-24 08:43:32 -07:00
intel_region_lmem.c	drm/i915: Rename the DSM/GSM registers	2024-02-07 01:59:01 +02:00
intel_region_lmem.h	drm/i915: Kill the fake lmem support	2022-02-18 22:31:46 -08:00
intel_renderstate.c	drm/i915: Wrap all access to i915_vma.node.start|size	2022-12-06 10:52:42 +01:00
intel_renderstate.h	drm/i915: Break out dma_resv ww locking utilities to separate files	2021-06-17 14:22:59 +01:00
intel_reset_types.h	drm/i915/reset: remove I915_RESET_MODESET flag	2025-03-05 12:48:22 +02:00
intel_reset.c	Merge tag 'drm-intel-gt-next-2025-02-26' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-13 07:54:41 +10:00
intel_reset.h	drm/i915/reset: add intel_gt_gpu_reset_clobbers_display() helper	2025-03-05 12:48:22 +02:00
intel_ring_submission.c	drm/i915/gt: Fix timeline left held on VMA alloc error	2025-07-01 08:10:42 +03:00
intel_ring_types.h
intel_ring.c	drm/i915: Remove unused intel_ring_cacheline_align	2024-12-30 01:31:56 +01:00
intel_ring.h	drm/i915: Remove unused intel_ring_cacheline_align	2024-12-30 01:31:56 +01:00
intel_rps_types.h	drm/i915/rps: fix stale reference to i915->irq_lock	2025-05-07 15:44:19 +03:00
intel_rps.c	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
intel_rps.h	drm/i915: Add helpers for managing rps thresholds	2023-07-19 11:28:28 +01:00
intel_sa_media.c	drm/i915/gt: fix typos in i915/gt files.	2025-01-23 05:48:22 -05:00
intel_sa_media.h	drm/i915/xelpmp: Expose media as another GT	2022-09-12 15:23:12 +03:00
intel_sseu_debugfs.c	drm/i915/sseu: Disassociate internal subslice mask representation from uapi	2022-06-02 07:20:59 -07:00
intel_sseu_debugfs.h
intel_sseu.c	Merge tag 'drm-intel-gt-next-2025-03-12' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-25 08:21:07 +10:00
intel_sseu.h	drm/i915/sseu: fix max_subslices array-index-out-of-bounds access	2023-03-13 11:38:05 +02:00
intel_timeline_types.h
intel_timeline.c	drm/i915: don't include drm_cache.h in i915_drv.h	2022-02-14 13:19:37 +02:00
intel_timeline.h
intel_tlb.c	drm/i915/gt: add a macro for mock gt wakeref special value and use it	2024-09-30 17:54:11 +03:00
intel_tlb.h	drm/i915/gt: Move TLB invalidation to its own file	2023-08-02 15:40:11 +02:00
intel_wopcm.c	drm/i915/mtl: Handle wopcm per-GT and limit calculations.	2022-11-14 10:11:47 -08:00
intel_wopcm.h	drm/i915/gt: Fix SPDX license format	2025-03-19 02:40:19 +01:00
intel_workarounds_types.h	drm/i915: Partial abandonment of legacy DRM logging macros	2022-11-10 12:35:46 +00:00
intel_workarounds.c	Merge tag 'drm-intel-gt-next-2025-05-08-1' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-05-09 11:39:27 +10:00
intel_workarounds.h	drm/i915: Make wa list per-gt	2021-09-20 08:06:36 -07:00
ivb_clear_kernel.c
mock_engine.c	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
mock_engine.h
selftest_context.c	drm/i915: Don't use __func__ as prefix for drm_dbg_printer	2024-06-06 14:46:15 -04:00
selftest_engine_cs.c	drm/i915: Track gt pm wakerefs	2023-11-20 12:36:56 +01:00
selftest_engine_heartbeat.c	drm/i915/gt: Delete the live_hearbeat_fast selftest	2024-06-06 03:46:13 +02:00
selftest_engine_heartbeat.h	drm/i915/selftest: Fix hangcheck self test for GuC submission	2021-07-27 17:32:23 -07:00
selftest_engine_pm.c	drm/i915/gt: Use gt_err for GT info	2023-05-03 12:56:10 +02:00
selftest_engine.c	drm/i915/gt: Use to_gt() helper	2021-12-17 21:50:06 -08:00
selftest_engine.h
selftest_execlists.c	treewide: Switch/rename to timer_delete[_sync]()	2025-04-05 10:30:12 +02:00
selftest_gt_pm.c	drm/i915: Track gt pm wakerefs	2023-11-20 12:36:56 +01:00
selftest_hangcheck.c	Merge drm/drm-next into drm-intel-next	2025-02-05 19:12:37 +02:00
selftest_llc.c	drm/i915: remove unnecessary intel_pm.h includes	2023-03-06 18:26:30 +02:00
selftest_llc.h
selftest_lrc.c	Merge tag 'drm-intel-gt-next-2025-05-08-1' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-05-09 11:39:27 +10:00
selftest_migrate.c	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
selftest_mocs.c	drm/i915: use direct alias for i915 in requests	2023-07-24 17:24:35 +02:00
selftest_rc6.c	Merge tag 'drm-intel-gt-next-2025-05-08-1' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-05-09 11:39:27 +10:00
selftest_rc6.h
selftest_reset.c	drm/i915: Refactor confusing __intel_gt_reset()	2024-04-24 18:48:31 +02:00
selftest_ring_submission.c	drm/i915: Wrap all access to i915_vma.node.start|size	2022-12-06 10:52:42 +01:00
selftest_ring.c
selftest_rps.c	Merge tag 'drm-intel-gt-next-2025-02-26' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-03-13 07:54:41 +10:00
selftest_rps.h
selftest_slpc.c	Merge drm/drm-next into drm-intel-gt-next	2025-02-05 09:29:14 +00:00
selftest_timeline.c	drm/i915: use direct alias for i915 in requests	2023-07-24 17:24:35 +02:00
selftest_tlb.c	drm/i915/gt: Use proper sleeping functions for timeouts shorter than 20ms	2025-03-19 02:41:17 +01:00
selftest_workarounds.c	drm/i915/selftest: use igt_vma_move_to_active_unlocked if possible	2023-01-09 14:23:52 +01:00
shmem_utils.c	drm/i915/gt: Replace kmap with its safer kmap_local_page counterpart	2025-02-17 15:02:43 +01:00
shmem_utils.h	drm/i915/gt: Add helper for shmem copy to iosys_map	2022-02-25 15:23:18 -08:00
st_shmem_utils.c
sysfs_engines.c	drm/i915/gt: Continue creating engine sysfs files even after a failure	2024-08-24 00:28:55 +02:00
sysfs_engines.h