Krzysztof Karas e49477f7f7 drm/i915/gt: Use spin_lock_irqsave() in interruptible context ... spin_lock/unlock() functions used in interrupt contexts could result in a deadlock, as seen in GitLab issue #13399, which occurs when interrupt comes in while holding a lock. Try to remedy the problem by saving irq state before spin lock acquisition. v2: add irqs' state save/restore calls to all locks/unlocks in signal_irq_work() execution (Maciej) v3: use with spin_lock_irqsave() in guc_lrc_desc_unpin() instead of other lock/unlock calls and add Fixes and Cc tags (Tvrtko); change title and commit message Fixes: 2f2cc53b5f ("drm/i915/guc: Close deregister-context race against CT-loss") Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13399 Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com> Cc: <stable@vger.kernel.org> # v6.9+ Reviewed-by: Maciej Patelczyk <maciej.patelczyk@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/pusppq5ybyszau2oocboj3mtj5x574gwij323jlclm5zxvimmu@mnfg6odxbpsv (cherry picked from commit c088387ddd) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>		2025-02-17 09:22:29 -05:00
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abi	drm/i915/guc: Extend w/a 14019159160	2024-07-18 12:51:56 -07:00
guc_capture_fwif.h
intel_gsc_binary_headers.h
intel_gsc_fw.c	drm/i915/gsc: ARL-H and ARL-U need a newer GSC FW.	2024-11-12 09:44:55 +02:00
intel_gsc_fw.h
intel_gsc_proxy.c	drm: move i915_component.h under include/drm/intel	2024-05-31 16:11:00 +03:00
intel_gsc_proxy.h
intel_gsc_uc_debugfs.c
intel_gsc_uc_debugfs.h
intel_gsc_uc_heci_cmd_submit.c	drm/i915/pxp/mtl: Update pxp-firmware response timeout	2023-09-19 12:11:18 -07:00
intel_gsc_uc_heci_cmd_submit.h	drm/i915/pxp/mtl: Update pxp-firmware response timeout	2023-09-19 12:11:18 -07:00
intel_gsc_uc.c	drm/i915: Do not attempt to load the GSC multiple times	2024-09-02 13:25:13 +03:00
intel_gsc_uc.h
intel_guc_ads.c	drm/i915/guc: Extend w/a 14019159160	2024-07-18 12:51:56 -07:00
intel_guc_ads.h
intel_guc_capture.c	drm/i915/guc: Correct capture of EIR register on hang	2024-03-04 15:35:22 -08:00
intel_guc_capture.h
intel_guc_ct.c	drm/i915/guc: Create the guc_to_i915() wrapper	2023-12-08 12:31:01 +01:00
intel_guc_ct.h	drm/i915/guc: Add CT size delay helper	2023-10-18 06:01:09 +02:00
intel_guc_debugfs.c
intel_guc_debugfs.h
intel_guc_fw.c	drm/i915: use IS_ENABLED() instead of defined() on config options	2024-09-05 21:12:08 +03:00
intel_guc_fw.h
intel_guc_fwif.h	drm/i915/guc: Enable PXP GuC autoteardown flow	2024-10-14 13:06:45 -07:00
intel_guc_hwconfig.c	drm/i915/guc: Use the new gt_to_guc() wrapper	2024-03-01 13:19:43 +01:00
intel_guc_log_debugfs.c
intel_guc_log_debugfs.h
intel_guc_log.c	Merge tag 'drm-intel-gt-next-2025-01-10' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-01-13 08:05:00 +10:00
intel_guc_log.h
intel_guc_print.h
intel_guc_rc.c	drm/i915/guc: Create the guc_to_i915() wrapper	2023-12-08 12:31:01 +01:00
intel_guc_rc.h
intel_guc_reg.h
intel_guc_slpc_types.h
intel_guc_slpc.c	drm/i915/guc: Use context hints for GT frequency	2024-03-07 10:25:06 -08:00
intel_guc_slpc.h	drm/i915/guc: Use context hints for GT frequency	2024-03-07 10:25:06 -08:00
intel_guc_submission.c	drm/i915/gt: Use spin_lock_irqsave() in interruptible context	2025-02-17 09:22:29 -05:00
intel_guc_submission.h	drm/i915/guc: Flush context destruction worker at suspend	2024-01-09 09:33:07 -08:00
intel_guc.c	drm/i915/guc: Enable PXP GuC autoteardown flow	2024-10-14 13:06:45 -07:00
intel_guc.h	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
intel_huc_debugfs.c
intel_huc_debugfs.h
intel_huc_fw.c
intel_huc_fw.h
intel_huc_print.h
intel_huc.c	Merge tag 'drm-intel-gt-next-2025-01-10' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-01-13 08:05:00 +10:00
intel_huc.h	drm/i915: Remove unused intel_huc_suspend	2024-12-30 01:31:45 +01:00
intel_uc_debugfs.c
intel_uc_debugfs.h
intel_uc_fw_abi.h
intel_uc_fw.c	drm/i915: ARL requires a newer GSC firmware	2024-08-27 13:23:58 +03:00
intel_uc_fw.h	drm/i915: Do not attempt to load the GSC multiple times	2024-09-02 13:25:13 +03:00
intel_uc.c	drm/i915: Replace double blank with single blank after comma in gem/ and gt/	2024-08-08 11:40:41 +01:00
intel_uc.h
selftest_guc_hangcheck.c	drm/i915/guc: Fix for potential false positives in GuC hang selftest	2023-11-30 13:50:49 -08:00
selftest_guc_multi_lrc.c
selftest_guc.c	drm/i915/guc: Use the new gt_to_guc() wrapper	2024-03-01 13:19:43 +01:00