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2025-10-03drm/xe/i2c: Don't rely on d3cold.allowed flag in system PM pathRaag Jadav
In S3 and above sleep states, the device can loose power regardless of d3cold.allowed flag. Bring up I2C controller explicitly in system PM path to ensure its normal operation after losing power. v2: Cover S3 and above states (Rodrigo) Fixes: 0ea07b69517a ("drm/xe/pm: Wire up suspend/resume for I2C controller") Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20250918103200.2952576-1-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (cherry picked from commit e4863f1159befcd70df24fcb5458afaf2feab043) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-03drm/xe/hw_engine_group: Fix double write lock release in error pathShuicheng Lin
In xe_hw_engine_group_get_mode(), a write lock is acquired before calling switch_mode(), which in turn invokes xe_hw_engine_group_suspend_faulting_lr_jobs(). On failure inside xe_hw_engine_group_suspend_faulting_lr_jobs(), the write lock is released there, and then again in xe_hw_engine_group_get_mode(), leading to a double release. Fix this by keeping both acquire and release operation in xe_hw_engine_group_get_mode(). Fixes: 770bd1d34113 ("drm/xe/hw_engine_group: Ensure safe transition between execution modes") Cc: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://lore.kernel.org/r/20250925023145.1203004-2-shuicheng.lin@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> (cherry picked from commit 662d98b8b373007fa1b08ba93fee11f6fd3e387c) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-03drm/xe/uapi: loosen used tracking restrictionMatthew Auld
Currently this is hidden behind perfmon_capable() since this is technically an info leak, given that this is a system wide metric. However the granularity reported here is always PAGE_SIZE aligned, which matches what the core kernel is already willing to expose to userspace if querying how many free RAM pages there are on the system, and that doesn't need any special privileges. In addition other drm drivers seem happy to expose this. The motivation here if with oneAPI where they want to use the system wide 'used' reporting here, so not the per-client fdinfo stats. This has also come up with some perf overlay applications wanting this information. Fixes: 1105ac15d2a1 ("drm/xe/uapi: restrict system wide accounting") Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Joshua Santosh <joshua.santosh.ranjan@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: <stable@vger.kernel.org> # v6.8+ Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250919122052.420979-2-matthew.auld@intel.com (cherry picked from commit 4d0b035fd6dae8ee48e9c928b10f14877e595356) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-03Merge tag 'pull-fs_context' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fs_context updates from Al Viro: "Change vfs_parse_fs_string() calling conventions Get rid of the length argument (almost all callers pass strlen() of the string argument there), add vfs_parse_fs_qstr() for the cases that do want separate length" * tag 'pull-fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: do_nfs4_mount(): switch to vfs_parse_fs_string() change the calling conventions for vfs_parse_fs_string()
2025-10-03drm/sitronix/st7571-i2c: reset position before clearing displayMarcus Folkesson
We cannot know where the write pointer is, always reset position to (0,0) before clearing display. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250913-st7571-reset-v1-1-ae5f58acdf8d@gmail.com Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2025-10-03drm/bridge: refcount last_bridge in drm_atomic_bridge_chain_select_bus_fmts()Luca Ceresoli
Get a reference for the last_bridge when it is obtained and release it using a cleanup action. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250924-b4-drm-bridge-alloc-getput-drm_atomic_bridge_chain_select_bus_fmts-v1-1-f8c2efdb783f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-10-03drm/display: bridge_connector: get/put the stored bridgesLuca Ceresoli
drm_bridge_connector_init() takes eight pointers to various bridges, some of which can be identical, and stores them in pointers inside struct drm_bridge_connector. Get a reference to each of the taken bridges and put it on cleanup. This is tricky because the pointers are currently stored directly in the drm_bridge_connector in the loop, but there is no nice and clean way to put those pointers on error return paths. To overcome this, store all pointers in temporary local variables with a cleanup action, and only on success copy them into struct drm_bridge_connector (getting another ref while copying). Additionally four of these pointers (edid, hpd, detect and modes) can be written in multiple loop iterations, in order to eventually store the last matching bridge. However, when one of those pointers is overwritten, we need to put the reference that we got during the previous assignment. Add a drm_bridge_put() before writing them to handle this. Finally, there is also a function-local panel_bridge pointer taken inside the loop and used after the loop. Use a cleanup action as well to ensure it is put on return. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250926-drm-bridge-alloc-getput-bridge-connector-v2-1-138b4bb70576@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-10-02drm/xe/xe_late_bind_fw: Initialize uval variable in xe_late_bind_fw_num_fans()Mallesh Koujalagi
Initialize the uval variable to 0 in xe_late_bind_fw_num_fans() to fix a potential use of uninitialized variable warning and ensure predictable behavior. The variable is passed by reference to xe_pcode_read() which should populate it on success, but initializing it to 0 provides a safe default value and follows kernel coding best practices. v2: - uval = 0 which serves as both a safe default and the fallback value when the pcode read operation fails. v3: - Handle MMIO failure (Rodrigo) - The function should probably return the error and make the uval as pointer-argument, like the pcode_read. - Change the caller of this function to propagate the error upwards if mmio failed. Fixes: 45832bf9c10f3 ("drm/xe/xe_late_bind_fw: Initialize late binding firmware") Signed-off-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com> Link: https://lore.kernel.org/r/20251002005648.3185636-1-mallesh.koujalagi@intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (cherry picked from commit 07abc16c14693df703763c45e9fc0abfefc927d5) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/gpusvm, drm/xe: Fix userptr to not allow device private pagesThomas Hellström
When userptr is used on SVM-enabled VMs, a non-NULL hmm_range::dev_private_owner value might mean that hmm_range_fault() attempts to return device private pages. Either that will fail, or the userptr code will not know how to handle those. Use NULL for hmm_range::dev_private_owner to migrate such pages to system. In order to do that, move the struct drm_gpusvm::device_private_page_owner field to struct drm_gpusvm_ctx::device_private_page_owner so that it doesn't remain immutable over the drm_gpusvm lifetime. v2: - Don't conditionally compile xe_svm_devm_owner(). - Kerneldoc xe_svm_devm_owner(). Fixes: 9e9787414882 ("drm/xe/userptr: replace xe_hmm with gpusvm") Cc: Matthew Auld <matthew.auld@intel.com> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/20250930122752.96034-1-thomas.hellstrom@linux.intel.com (cherry picked from commit ad298d9ec957414dbf3d51f3c8bca4b6d2416c0c) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/xe_late_bind_fw: Fix missing initialization of variable offsetColin Ian King
The variable offset is not being initialized, and it is only set inside a for-loop if entry->name is the same as manifest_entry. In the case where it is not initialized a non-zero check on offset is potentialy checking a bogus uninitalized value. Fix this by initializing offset to zero. Fixes: efa29317a553 ("drm/xe/xe_late_bind_fw: Extract and print version info") Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://lore.kernel.org/r/20250924102208.9216-1-colin.i.king@gmail.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (cherry picked from commit 20f3b28e2e07747fd27301f0f5deb3cb569ee15c) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/bo: Fix an idle assertion for local bosThomas Hellström
Before calling ttm_bo_populate() in the CPU fault path of a bo, we assert that the bo is not being migrated. However, for local bos we share the reservation object with other local bos that might be in the process of being migrated. Also some VM operations may attach USAGE_KERNEL fences to the common reservation object and trigger false positives from the assert. So remove the assert and instead wait for bo idle. This may unnecessarily wait for idle in some cases but since we're doing this wait later in the fault path anyway we might as well do it here as well. This fixes warnings like: Sep 25 14:56:23 desky kernel: ------------[ cut here ]------------ Sep 25 14:56:23 desky kernel: xe 0000:03:00.0: [drm] Assertion `dma_resv_test_signaled(tbo->base.resv, DMA_RESV_USAGE_KERNEL) || (tbo->ttm && ttm_tt_is_populated(tbo->ttm))` failed! platform: BATTLEMAGE subplatform: 1 graphics: Xe2_HPG 20.01 step A0 media: Xe2_HPM 13.01 step A1 Sep 25 14:56:23 desky kernel: WARNING: CPU: 6 PID: 24767 at drivers/gpu/drm/xe/xe_bo.c:1748 xe_bo_fault_migrate+0x1bb/0x300 [xe] Sep 25 14:56:23 desky kernel: Modules linked in: cpuid dm_crypt xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bridge stp llc xfrm_user xfr> Sep 25 14:56:23 desky kernel: snd_soc_sdca snd_seq_midi prime_numbers coretemp snd_seq_midi_event drm_ttm_helper snd_hda_codec drm_buddy drm_exec snd_rawmidi snd_soc_core snd_hda_cor> Sep 25 14:56:23 desky kernel: CPU: 6 UID: 1000 PID: 24767 Comm: steamwebhelper Tainted: G U W 6.17.0-rc7+ #32 PREEMPT(voluntary) Sep 25 14:56:23 desky kernel: Tainted: [U]=USER, [W]=WARN Sep 25 14:56:23 desky kernel: Hardware name: Micro-Star International Co., Ltd. MS-7D36/PRO Z690-P DDR4 (MS-7D36), BIOS A.A1 10/18/2022 Sep 25 14:56:23 desky kernel: RIP: 0010:xe_bo_fault_migrate+0x1bb/0x300 [xe] Sep 25 14:56:23 desky kernel: Code: fa 64 29 f9 48 c7 c7 40 e0 d3 c1 51 48 c7 c1 c0 e3 d3 c1 52 4c 8b 45 c0 41 50 44 8b 4d c8 4d 89 e0 48 8b 55 a8 e8 25 27 95 ef <0f> 0b 48 83 c4 40 4> Sep 25 14:56:23 desky kernel: RSP: 0000:ffffae1ca88c7b10 EFLAGS: 00010286 Sep 25 14:56:23 desky kernel: RAX: 0000000000000000 RBX: ffff8d7cfd7e6800 RCX: 0000000000000027 Sep 25 14:56:23 desky kernel: RDX: ffff8d845019cec8 RSI: 0000000000000001 RDI: ffff8d845019cec0 Sep 25 14:56:23 desky kernel: RBP: ffffae1ca88c7bc8 R08: 0000000000000000 R09: 0000000000000000 Sep 25 14:56:23 desky kernel: R10: 0000000000000000 R11: 0000000000000004 R12: ffffffffc1db1faa Sep 25 14:56:23 desky kernel: R13: ffffffffc1db2ab4 R14: 0000000000000001 R15: ffffae1ca88c7bd8 Sep 25 14:56:23 desky kernel: FS: 00007fb1baf31940(0000) GS:ffff8d849c870000(0000) knlGS:0000000000000000 Sep 25 14:56:23 desky kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 25 14:56:23 desky kernel: CR2: 00007fb1b2860020 CR3: 00000001705a9004 CR4: 0000000000772ef0 Sep 25 14:56:23 desky kernel: PKRU: 55555558 Sep 25 14:56:23 desky kernel: Call Trace: Sep 25 14:56:23 desky kernel: <TASK> Sep 25 14:56:23 desky kernel: xe_bo_cpu_fault_fastpath+0x11e/0x220 [xe] Sep 25 14:56:23 desky kernel: xe_bo_cpu_fault+0x84/0x410 [xe] Sep 25 14:56:23 desky kernel: ? __x64_sys_mmap+0x33/0x50 Sep 25 14:56:23 desky kernel: ? x64_sys_call+0x1b2e/0x20d0 Sep 25 14:56:23 desky kernel: ? do_syscall_64+0x9d/0x1f0 Sep 25 14:56:23 desky kernel: ? __check_object_size+0x4a/0x2e0 Sep 25 14:56:23 desky kernel: __do_fault+0x36/0x190 Sep 25 14:56:23 desky kernel: do_fault+0xcf/0x570 Sep 25 14:56:23 desky kernel: __handle_mm_fault+0x92b/0xfe0 Sep 25 14:56:23 desky kernel: ? ktime_get_mono_fast_ns+0x39/0xd0 Sep 25 14:56:23 desky kernel: handle_mm_fault+0x164/0x2c0 Sep 25 14:56:23 desky kernel: do_user_addr_fault+0x2cb/0x840 Sep 25 14:56:23 desky kernel: exc_page_fault+0x75/0x180 Sep 25 14:56:23 desky kernel: asm_exc_page_fault+0x27/0x30 Sep 25 14:56:23 desky kernel: RIP: 0033:0x7fb1bc388bb7 Sep 25 14:56:23 desky kernel: Code: 48 ff c7 48 01 fe 48 8d 54 11 80 0f 1f 84 00 00 00 00 00 c5 fe 6f 0e c5 fe 6f 56 20 c5 fe 6f 5e 40 c5 fe 6f 66 60 48 83 ee 80 <c5> fd 7f 0f c5 fd 7> Sep 25 14:56:23 desky kernel: RSP: 002b:00007ffd7814fad8 EFLAGS: 00010207 Sep 25 14:56:23 desky kernel: RAX: 00007fb1b2860000 RBX: 0000000000000690 RCX: 00007fb1b2860000 Sep 25 14:56:23 desky kernel: RDX: 00007fb1b2860610 RSI: 0000556eda79f4c0 RDI: 00007fb1b2860020 Sep 25 14:56:23 desky kernel: RBP: 00007ffd7814fb60 R08: 0000000000000000 R09: 000000012be0e000 Sep 25 14:56:23 desky kernel: R10: 00007fb1b2860000 R11: 0000000000000246 R12: 0000556edd39a240 Sep 25 14:56:23 desky kernel: R13: 00007fb1b2dcb010 R14: 0000556eda79f420 R15: 0000000000000000 Sep 25 14:56:23 desky kernel: </TASK> Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5250 Fixes: c2ae94cf8cd8 ("drm/xe: Convert the CPU fault handler for exhaustive eviction") Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250929112649.6131-1-thomas.hellstrom@linux.intel.com (cherry picked from commit 8f1756a7ea33b352a54e6f53d76c552b3a424187) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/vf: Don't claim support for firmware late-bind if VFMichal Wajdeczko
In general, the VFs can't load firmwares so attempt to initialize the firmware late-bind component leads to errors like: [] xe 0000:03:00.1: [drm] *ERROR* Late bind component not bound Fixes: 918bd789d62e ("drm/xe/xe_late_bind_fw: Introduce xe_late_bind_fw") Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6190 Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Reviewed-by: Badal Nilawar <badal.nilawar@intel.com> Link: https://lore.kernel.org/r/20250928174811.198933-3-michal.wajdeczko@intel.com (cherry picked from commit e35e288090f362be88d77b60d9846cea15df173e) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/vf: Rename sriov_update_device_infoMichal Wajdeczko
This is a VF only function and its name should reflect that to avoid any confusion. Move the VF check to the caller side. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Link: https://lore.kernel.org/r/20250928174811.198933-2-michal.wajdeczko@intel.com (cherry picked from commit b88bb1eefa88f0cefc00fe5e78b1186cd8f9db78) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/configfs: Improve doc for ctx_restore* attributesLucas De Marchi
Spell out the syntax instead of only using examples. Particularly important the <engine-class> part since that's different than engines_allowed and may confuse users. The same batch buffer is used for all engines of a certain class. Cc: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Fixes: e2a9854d806e ("drm/xe/configfs: Allow to select by class only") Link: https://lore.kernel.org/r/20250924152709.659483-4-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> (cherry picked from commit 47ca7acff4011fa322853a3612f464b959e88210) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/configfs: Fix engine class parsingLucas De Marchi
If mask is NULL, only the engine class should be accepted, so the pattern string should be completely parsed. This should fix passing e.g. rcs0 to ctx_restore_post_bb when it's only expecting the engine class. Reported-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Closes: https://lore.kernel.org/r/20250922155544.67712-1-jonathan.cavitt@intel.com Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/aNJKnrCQmL9xS9Gv@stanley.mountain Fixes: e2a9854d806e ("drm/xe/configfs: Allow to select by class only") Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Reviewed-by: Raag Jadav <raag.jadav@intel.com> Link: https://lore.kernel.org/r/20250924152709.659483-3-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> (cherry picked from commit dd797967160b79cc0ca2d2eb05fc55436b66dce0) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/tests: Fix build break on clang 16.0.6Michal Wajdeczko
The following error was reported when building with clang 16.0.6: In file included from drivers/gpu/drm/xe/xe_pci.c:1104: >> drivers/gpu/drm/xe/tests/xe_pci.c:214:2: error: initializer \ element is not a compile-time constant graphics_ip_xelp, ^~~~~~~~~~~~~~~~ drivers/gpu/drm/xe/tests/xe_pci.c:221:2: error: initializer \ element is not a compile-time constant media_ip_xem, ^~~~~~~~~~~~ 2 errors generated. Fix that by explicit re-definition of pre-GMDID IPs, as there are not so many of them. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202509192041.tQwdE4DS-lkp@intel.com/ Fixes: 5bb5258e357e ("drm/xe/tests: Add pre-GMDID IP descriptors to param generators") Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250922101207.192028-1-michal.wajdeczko@intel.com (cherry picked from commit 2de80e2da74b402a9d838b8e729cd01cf94cdcbc) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02Merge tag 'mm-stable-2025-10-01-19-00' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "mm, swap: improve cluster scan strategy" from Kairui Song improves performance and reduces the failure rate of swap cluster allocation - "support large align and nid in Rust allocators" from Vitaly Wool permits Rust allocators to set NUMA node and large alignment when perforning slub and vmalloc reallocs - "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend DAMOS_STAT's handling of the DAMON operations sets for virtual address spaces for ops-level DAMOS filters - "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren Baghdasaryan reduces mmap_lock contention during reads of /proc/pid/maps - "mm/mincore: minor clean up for swap cache checking" from Kairui Song performs some cleanup in the swap code - "mm: vm_normal_page*() improvements" from David Hildenbrand provides code cleanup in the pagemap code - "add persistent huge zero folio support" from Pankaj Raghav provides a block layer speedup by optionalls making the huge_zero_pagepersistent, instead of releasing it when its refcount falls to zero - "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to the recently added Kexec Handover feature - "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo Stoakes turns mm_struct.flags into a bitmap. To end the constant struggle with space shortage on 32-bit conflicting with 64-bit's needs - "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap code - "selftests/mm: Fix false positives and skip unsupported tests" from Donet Tom fixes a few things in our selftests code - "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised" from David Hildenbrand "allows individual processes to opt-out of THP=always into THP=madvise, without affecting other workloads on the system". It's a long story - the [1/N] changelog spells out the considerations - "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on the memdesc project. Please see https://kernelnewbies.org/MatthewWilcox/Memdescs and https://blogs.oracle.com/linux/post/introducing-memdesc - "Tiny optimization for large read operations" from Chi Zhiling improves the efficiency of the pagecache read path - "Better split_huge_page_test result check" from Zi Yan improves our folio splitting selftest code - "test that rmap behaves as expected" from Wei Yang adds some rmap selftests - "remove write_cache_pages()" from Christoph Hellwig removes that function and converts its two remaining callers - "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD selftests issues - "introduce kernel file mapped folios" from Boris Burkov introduces the concept of "kernel file pages". Using these permits btrfs to account its metadata pages to the root cgroup, rather than to the cgroups of random inappropriate tasks - "mm/pageblock: improve readability of some pageblock handling" from Wei Yang provides some readability improvements to the page allocator code - "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON to understand arm32 highmem - "tools: testing: Use existing atomic.h for vma/maple tests" from Brendan Jackman performs some code cleanups and deduplication under tools/testing/ - "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes a couple of 32-bit issues in tools/testing/radix-tree.c - "kasan: unify kasan_enabled() and remove arch-specific implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific initialization code into a common arch-neutral implementation - "mm: remove zpool" from Johannes Weiner removes zspool - an indirection layer which now only redirects to a single thing (zsmalloc) - "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a couple of cleanups in the fork code - "mm: remove nth_page()" from David Hildenbrand makes rather a lot of adjustments at various nth_page() callsites, eventually permitting the removal of that undesirable helper function - "introduce kasan.write_only option in hw-tags" from Yeoreum Yun creates a KASAN read-only mode for ARM, using that architecture's memory tagging feature. It is felt that a read-only mode KASAN is suitable for use in production systems rather than debug-only - "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does some tidying in the hugetlb folio allocation code - "mm: establish const-correctness for pointer parameters" from Max Kellermann makes quite a number of the MM API functions more accurate about the constness of their arguments. This was getting in the way of subsystems (in this case CEPH) when they attempt to improving their own const/non-const accuracy - "Cleanup free_pages() misuse" from Vishal Moola fixes a number of code sites which were confused over when to use free_pages() vs __free_pages() - "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the mapletree code accessible to Rust. Required by nouveau and by its forthcoming successor: the new Rust Nova driver - "selftests/mm: split_huge_page_test: split_pte_mapped_thp improvements" from David Hildenbrand adds a fix and some cleanups to the thp selftesting code - "mm, swap: introduce swap table as swap cache (phase I)" from Chris Li and Kairui Song is the first step along the path to implementing "swap tables" - a new approach to swap allocation and state tracking which is expected to yield speed and space improvements. This patchset itself yields a 5-20% performance benefit in some situations - "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc layer to clean up the ptdesc code a little - "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some issues in our 5-level pagetable selftesting code - "Minor fixes for memory allocation profiling" from Suren Baghdasaryan addresses a couple of minor issues in relatively new memory allocation profiling feature - "Small cleanups" from Matthew Wilcox has a few cleanups in preparation for more memdesc work - "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from Quanmin Yan makes some changes to DAMON in furtherance of supporting arm highmem - "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad Anjum adds that compiler check to selftests code and fixes the fallout, by removing dead code - "Improvements to Victim Process Thawing and OOM Reaper Traversal Order" from zhongjinji makes a number of improvements in the OOM killer: mainly thawing a more appropriate group of victim threads so they can release resources - "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park is a bunch of small and unrelated fixups for DAMON - "mm/damon: define and use DAMON initialization check function" from SeongJae Park implement reliability and maintainability improvements to a recently-added bug fix - "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from SeongJae Park provides additional transparency to userspace clients of the DAMON_STAT information - "Expand scope of khugepaged anonymous collapse" from Dev Jain removes some constraints on khubepaged's collapsing of anon VMAs. It also increases the success rate of MADV_COLLAPSE against an anon vma - "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()" from Lorenzo Stoakes moves us further towards removal of file_operations.mmap(). This patchset concentrates upon clearing up the treatment of stacked filesystems - "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau provides some fixes and improvements to mlock's tracking of large folios. /proc/meminfo's "Mlocked" field became more accurate - "mm/ksm: Fix incorrect accounting of KSM counters during fork" from Donet Tom fixes several user-visible KSM stats inaccuracies across forks and adds selftest code to verify these counters - "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses some potential but presently benign issues in KSM's mm_slot handling * tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits) mm: swap: check for stable address space before operating on the VMA mm: convert folio_page() back to a macro mm/khugepaged: use start_addr/addr for improved readability hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list alloc_tag: fix boot failure due to NULL pointer dereference mm: silence data-race in update_hiwater_rss mm/memory-failure: don't select MEMORY_ISOLATION mm/khugepaged: remove definition of struct khugepaged_mm_slot mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL hugetlb: increase number of reserving hugepages via cmdline selftests/mm: add fork inheritance test for ksm_merging_pages counter mm/ksm: fix incorrect KSM counter handling in mm_struct during fork drivers/base/node: fix double free in register_one_node() mm: remove PMD alignment constraint in execmem_vmalloc() mm/memory_hotplug: fix typo 'esecially' -> 'especially' mm/rmap: improve mlock tracking for large folios mm/filemap: map entire large folio faultaround mm/fault: try to map the entire file folio in finish_fault() mm/rmap: mlock large folios in try_to_unmap_one() mm/rmap: fix a mlock race condition in folio_referenced_one() ...
2025-10-02drm/xe/pf: Synchronize VF FLR between all GTsMichal Wajdeczko
The PF part of the VF FLR processing shall be done after all GuCs confirm that they finished their part VF FLR processing, otherwise PF may start clearing VF's GGTT that other GuC may still accessing. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-7-michal.wajdeczko@intel.com
2025-10-02drm/xe/pf: Split VF FLR processing functionMichal Wajdeczko
On multi-GT platforms (like PTL) we may want to run VF FLR on each GuC (render and media) in parallel. Split our FLR function to allow to wait for GT VF FLR completion separately. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-6-michal.wajdeczko@intel.com
2025-10-02drm/xe/pf: Unify VF state tracking logMichal Wajdeczko
By using single function that dumps VF state transition, final logs are easier to analyze as there is always the same call site in every debug message. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-5-michal.wajdeczko@intel.com
2025-10-02drm/xe/pf: Expose VF control operations over debugfsMichal Wajdeczko
To allow the user to control the activity of individual VFs, expose basic VF control operations (pause, resume, stop, reset) over the debugfs as write-only files: /sys/kernel/debug/dri/BDF/sriov/ ├── vf1 │ ├── pause │ ├── reset │ ├── resume │ ├── stop │ : ├── vf2 : : Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-4-michal.wajdeczko@intel.com
2025-10-02drm/xe/pf: Log only top level VF state changesMichal Wajdeczko
The user likely only care about top level VF state changes, any VF state logs on the per-GT basis can be demoted to the debug level. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-3-michal.wajdeczko@intel.com
2025-10-02drm/xe/pf: Add top level functions to control VFsMichal Wajdeczko
We already have control functions that we use to control the VF state on the per-GT basis, but that is low level detail from the user point of view, who rather expects VF-level functions. For now add simple functions that just iterate over all GTs and call per-GT control function. We will soon allow to use some of them from the user facing interfaces like debugfs. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://lore.kernel.org/r/20250930233525.201263-2-michal.wajdeczko@intel.com
2025-10-02drm/i915/display: Enable PICA power before AUXGustavo Sousa
According to Bspec, before enabling AUX power, we need to have the "power well containing Aux logic powered up". Starting with Xe2_LPD, such power well is the "PICA" power well, which is managed by the driver on demand. While we did add the mapping of AUX power domains to the PICA power well, we ended up placing its power well descriptor after the descriptor for AUX power. As a result, when enabling power wells for one of the aux power domains, the driver will enable AUX power before PICA power, going against the order specified in Bspec. It appears that issue did not become apparent to us mainly because, luckily, AUX power is brought up after we assert PICA power, even if done in the wrong order; and in enough time for the first AUX transaction to succeed. Furthermore, I have also realized that, in some cases, like driver initialization, PICA power is already up when we need to acquire AUX power. One case where we can observe the incorrect ordering is when the driver is resuming from runtime PM suspend. Here is an excerpt of a dmesg with some extra debug logs extracted from a LNL machine to illustrate the issue: [ +0.000156] xe 0000:00:02.0: [drm:intel_power_well_enable [xe]] enabling AUX_TC1 [ +0.001312] xe 0000:00:02.0: [drm:xelpdp_aux_power_well_enable [xe]] DBG: AUX_CH_USBC1 power status: 0 [ +0.000127] xe 0000:00:02.0: [drm:intel_power_well_enable [xe]] enabling PICA_TC [ +0.001072] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC1 power status: 1 [ +0.000102] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC2 power status: 0 [ +0.000090] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC3 power status: 0 [ +0.000092] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC4 power status: 0 The first "DBG: ..." line shows that AUX power for TC1 is off after we assert and wait. The remaining lines show that AUX power for TC1 was on after we enabled PICA power and waited for AUX power. It is important that we stay compliant with the spec, so let's fix this by listing the power wells in an order that matches the requirements from Bspec. (As a side note, it would be nice if we could define those dependencies explicitly.) After this change, we have: [ +0.000146] xe 0000:00:02.0: [drm:intel_power_well_enable [xe]] enabling PICA_TC [ +0.001417] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC1 power status: 0 [ +0.000116] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC2 power status: 0 [ +0.000096] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC3 power status: 0 [ +0.000094] xe 0000:00:02.0: [drm:xe2lpd_pica_power_well_enable [xe]] DBG: AUX_CH_USBC4 power status: 0 [ +0.000095] xe 0000:00:02.0: [drm:intel_power_well_enable [xe]] enabling AUX_TC1 [ +0.000915] xe 0000:00:02.0: [drm:xelpdp_aux_power_well_enable [xe]] DBG: AUX_CH_USBC1 power status: 1 Bspec: 68967, 68886, 72519 Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20251001-pica-power-before-aux-v2-2-6308df4de5a8@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
2025-10-02drm/i915/display: Extract separate AUX PW descriptorsGustavo Sousa
In an upcoming change, we will fix an ordering issue between PICA and AUX power wells for Xe2_LPD and later, making sure that the driver acquires PICA power before AUX. As a preparation for that, let's extract separate descriptors for AUX power wells. Suggested-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20251001-pica-power-before-aux-v2-1-6308df4de5a8@intel.com Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
2025-10-02gpu/drm: panel-edp: add AUO B116XAN02.0 panel entrySvyatoslav Ryhel
Add an eDP panel entry for AUO B116XAN02.0 used in Lenovo IdeaPad Yoga 11 with Tegra 3 SoC. The raw edid of the panel is: 00 ff ff ff ff ff ff 00 06 af 5c 20 00 00 00 00 00 16 01 04 90 1a 0e 78 02 99 85 95 55 56 92 28 22 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 12 1b 56 5a 50 00 19 30 30 20 46 00 00 90 10 00 00 18 00 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 fe 00 41 55 4f 0a 20 20 20 20 20 20 20 20 20 00 00 00 fe 00 42 31 31 36 58 41 4e 30 32 2e 30 20 0a 00 f1 Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250929142455.24883-9-clamor95@gmail.com
2025-10-02Merge tag 'media/v6.18-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Added a new V4L2 clock helper - New camera sensor drivers - iris: Enable H.264/H.265 encoder support and fixes in iris driver common code - camss: add support for new SoC flavors - venus: add new SoC support - tc358743: support more infoframe types - Various fixes, driver improvements and cleanups * tag 'media/v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (439 commits) media: venus: pm_helpers: add fallback for the opp-table media: qcom: camss: vfe: Fix BPL alignment for QCM2290 media: tuner: xc5000: Fix use-after-free in xc5000_release media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe media: b2c2: Fix use-after-free causing by irq_check_work in flexcop_pci_remove media: vsp1: Export missing vsp1_isp_free_buffer symbol media: renesas: vsp1: Convert to SYSTEM_SLEEP/RUNTIME_PM_OPS() media: renesas: ceu: Convert to RUNTIME_PM_OPS() media: renesas: fdp1: Convert to RUNTIME_PM_OPS() media: renesas: rcar-vin: Convert to DEFINE_SIMPLE_DEV_PM_OPS() media: renesas: rcar_drif: Convert to DEFINE_SIMPLE_DEV_PM_OPS() media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID media: uvcvideo: Support UVC_CROSXU_CONTROL_IQ_PROFILE media: uvcvideo: Run uvc_ctrl_init_ctrl for all controls media: uvcvideo: Shorten the transfer size non compliance message media: uvcvideo: Do not re-reference dev->udev media: uvcvideo: Use intf instead of udev for printks media: uvcvideo: Move video_device under video_queue media: uvcvideo: Drop stream->mutex media: uvcvideo: Move MSXU_CONTROL_METADATA definition to header ...
2025-10-02Merge tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "cross-subsystem: - i2c-hid: Make elan touch controllers power on after panel is enabled - dt bindings for STM32MP25 SoC - pci vgaarb: use screen_info helpers - rust pin-init updates - add MEI driver for late binding firmware update/load uapi: - add ioctl for reassigning GEM handles - provide boot_display attribute on boot-up devices core: - document DRM_MODE_PAGE_FLIP_EVENT - add vendor specific recovery method to drm device wedged uevent gem: - Simplify gpuvm locking ttm: - add interface to populate buffers sched: - Fix race condition in trace code atomic: - Reallow no-op async page flips display: - dp: Fix command length video: - Improve pixel-format handling for struct screen_info rust: - drop Opaque<> from ioctl args - Alloc: - BorrowedPage type and AsPageIter traits - Implement Vmalloc::to_page() and VmallocPageIter - DMA/Scatterlist: - Add dma::DataDirection and type alias for dma_addr_t - Abstraction for struct scatterlist and sg_table - DRM: - simplify use of generics - add DriverFile type alias - drop Object::SIZE - Rust: - pin-init tree merge - Various methods for AsBytes and FromBytes traits gpuvm: - Support madvice in Xe driver gpusvm: - fix hmm_pfn_to_map_order usage in gpusvm bridge: - Improve and fix ref counting on bridge management - cdns-dsi: Various improvements to mode setting - Support Solomon SSD2825 plus DT bindings - Support Waveshare DSI2DPI plus DT bindings - Support Content Protection property - display-connector: Improve DP display detection - Add support for Radxa Ra620 plus DT bindings - adv7511: Provide SPD and HDMI infoframes - it6505: Replace crypto_shash with sha() - synopsys: Add support for DW DPTX Controller plus DT bindings - adv7511: Write full Audio infoframe - ite6263: Support vendor-specific infoframes - simple: Add support for Realtek RTD2171 DP-to-HDMI plus DT bindings panel: - panel-edp: Support mt8189 Chromebooks; Support BOE NV140WUM-N64; Support SHP LQ134Z1; Fixes - panel-simple: Support Olimex LCD-OLinuXino-5CTS plus DT bindings - Support Samsung AMS561RA01 - Support Hydis HV101HD1 plus DT bindings - ilitek-ili9881c: Refactor mode setting; Add support for Bestar BSD1218-A101KL68 LCD plus DT bindings - lvds: Add support for Ampire AMP19201200B5TZQW-T03 to DT bindings - edp: Add support for additonal mt8189 Chromebook panels - lvds: Add DT bindings for EDT ETML0700Z8DHA amdgpu: - add CRIU support for gem objects - RAS updates - VCN SRAM load fixes - EDID read fixes - eDP ALPM support - Documentation updates - Rework PTE flag generation - DCE6 fixes - VCN devcoredump cleanup - MMHUB client id fixes - VCN 5.0.1 RAS support - SMU 13.0.x updates - Expanded PCIe DPC support - Expanded VCN reset support - VPE per queue reset support - give kernel jobs unique id for tracing - pre-populate exported buffers - cyan skillfish updates - make vbios build number available in sysfs - userq updates - HDCP updates - support MMIO remap page as ttm pool - JPEG parser updates - DCE6 DC updates - use devm for i2c buses - GPUVM locking updates - Drop non-DC DCE11 code - improve fallback handling for pixel encoding amdkfd: - SVM/page migration fixes - debugfs fixes - add CRIO support for gem objects - SVM updates radeon: - use dev_warn_once in CS parsers xe: - add madvise interface - add DRM_IOCTL_XE_VM_QUERY_MEMORY_RANGE_ATTRS to query VMA count and memory attributes - drop L# bank mask reporting from media GT3 on Xe3+. - add SLPC power_profile sysfs interface - add configs attribs to add post/mid context-switch commands - handle firmware reported hardware errors notifying userspace with device wedged uevent - use same dir structure across sysfs/debugfs - cleanup and future proof vram region init - add G-states and PCI link states to debugfs - Add SRIOV support for CCS surfaces on Xe2+ - Enable SRIOV PF mode by default on supported platforms - move flush to common code - extended core workarounds for Xe2/3 - use DRM scheduler for delayed GT TLB invalidations - configs improvements and allow VF device enablement - prep work to expose mmio regions to userspace - VF migration support added - prepare GPU SVM for THP migration - start fixing XE_PAGE_SIZE vs PAGE_SIZE - add PSMI support for hw validation - resize VF bars to max possible size according to number of VFs - Ensure GT is in C0 during resume - pre-populate exported buffers - replace xe_hmm with gpusvm - add more SVM GT stats to debugfs - improve fake pci and WA kunnit handle for new platform testing - Test GuC to GuC comms to add debugging - use attribute groups to simplify sysfs registration - add Late Binding firmware code to interact with MEI i915: - apply multiple JSL/EHL/Gen7/Gen6 workarounds properly - protect against overflow in active_engine() - Use try_cmpxchg64() in __active_lookup() - include GuC registers in error state - get rid of dev->struct_mutex - iopoll: generalize read_poll_timout - lots more display refactoring - Reject HBR3 in any eDP Panel - Prune modes for YUV420 - Display Wa fix, additions, and updates - DP: Fix 2.7 Gbps link training on g4x - DP: Adjust the idle pattern handling - DP: Shuffle the link training code a bit - Don't set/read the DSI C clock divider on GLK - Enable_psr kernel parameter changes - Type-C enabled/disconnected dp-alt sink - Wildcat Lake enabling - DP HDR updates - DRAM detection - wait PSR idle on dsb commit - Remove FBC modulo 4 restriction for ADL-P+ - panic: refactor framebuffer allocation habanalabs: - debug/visibility improvements - vmalloc-backed coherent mmap support - HLDIO infrastructure nova-core: - various register!() macro improvements - minor vbios/firmware fixes/refactoring - advance firmware boot stages; process Booter and patch signatures - process GSP and GSP bootloader - Add r570.144 firmware bindings and update to it - Move GSP boot code to own module - Use new pin-init features to store driver's private data in a single allocation - Update ARef import from sync::aref nova-drm: - Update ARef import from sync::aref tyr: - initial driver skeleton for a rust driver for ARM Mali GPUs - capable of powering up, query metadata and provide it to userspace. msm: - GPU and Core: - in DT bindings describe clocks per GPU type - GMU bandwidth voting for x1-85 - a623/a663 speedbins - cleanup some remaining no-iommu leftovers after VM_BIND conversion - fix GEM obj 32b size truncation - add missing VM_BIND param validation - IFPC for x1-85 and a750 - register xml and gen_header.py sync from mesa - Display: - add missing bindings for display on SC8180X - added DisplayPort MST bindings - conversion from round_rate() to determine_rate() amdxdna: - add IOCTL_AMDXDNA_GET_ARRAY - support user space allocated buffers - streamline PM interfaces - Refactoring wrt. hardware contexts - improve error reporting nouveau: - use GSP firmware by default - improve error reporting - Pre-populate exported buffers ast: - Clean up detection of DRAM config exynos: - add DSIM bridge driver support for Exynos7870 - Document Exynos7870 DSIM compatible in dt-binding panthor: - Print task/pid on errors - Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25 - Improve cache flushing - Fail VM bind if BO has offset renesas: - convert to RUNTIME_PM_OPS rcar-du: - Make number of lanes configurable - Use RUNTIME_PM_OPS - Add support for DSI commands rocket: - Add driver for Rockchip NPU plus DT bindings - Use kfree() and sizeof() correctly - Test DMA status rockchip: - dsi2: Add support for RK3576 plus DT bindings - Add support for RK3588 DPTX output tidss: - Use crtc_ fields for programming display mode - Remove other drivers from aperture pixpaper: - Add support for Mayqueen Pixpaper plus DT bindings v3d: - Support querying nubmer of GPU resets for KHR_robustness stm: - Clean up logging - ltdc: Add support support for STM32MP257F-EV1 plus DT bindings sitronix: - st7571-i2c: Add support for inverted displays and 2-bit grayscale tidss: - Convert to kernel's FIELD_ macros vesadrm: - Support 8-bit palette mode imagination: - Improve power management - Add support for TH1520 GPU - Support Risc-V architectures v3d: - Improve job management and locking vkms: - Support variants of ARGB8888, ARGB16161616, RGB565, RGB888 and P01x - Spport YUV with 16-bit components" * tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel: (1455 commits) drm/amd: Add name to modes from amdgpu_connector_add_common_modes() drm/amd: Drop some common modes from amdgpu_connector_add_common_modes() drm/amdgpu: update MODULE_PARM_DESC for freesync_video drm/amd: Use dynamic array size declaration for amdgpu_connector_add_common_modes() drm/amd/display: Share dce100_validate_global with DCE6-8 drm/amd/display: Share dce100_validate_bandwidth with DCE6-8 drm/amdgpu: Fix fence signaling race condition in userqueue amd/amdkfd: enhance kfd process check in switch partition amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw drm/amd/display: Reject modes with too high pixel clock on DCE6-10 drm/amd: Drop unnecessary check in amdgpu_connector_add_common_modes() drm/amd/display: Only enable common modes for eDP and LVDS drm/amdgpu: remove the redeclaration of variable i drm/amdgpu/userq: assign an error code for invalid userq va drm/amdgpu: revert "rework reserved VMID handling" v2 drm/amdgpu: remove leftover from enforcing isolation by VMID drm/amdgpu: Add fallback to pipe reset if KCQ ring reset fails accel/habanalabs: add Infineon version check accel/habanalabs/gaudi2: read preboot status after recovering from dirty state accel/habanalabs: add HL_GET_P_STATE passthrough type ...
2025-10-02drm/xe: Detect GT workqueue allocation failureMichal Wajdeczko
The allocation of the per-GT workqueue may fail and we shouldn't ignore that. While around use drm managed allocation function to drop our custom fini action. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20251001144051.202040-1-michal.wajdeczko@intel.com
2025-10-02Merge tag 'bitmap-for-6.18' of https://github.com/norov/linuxLinus Torvalds
Pull bitmap updates from Yury Norov: - FIELD_PREP_WM16() consolidation (Nicolas) - bitmaps for Rust (Burak) - __fls() fix for arc (Kees) * tag 'bitmap-for-6.18' of https://github.com/norov/linux: (25 commits) rust: add dynamic ID pool abstraction for bitmap rust: add find_bit_benchmark_rust module. rust: add bitmap API. rust: add bindings for bitops.h rust: add bindings for bitmap.h phy: rockchip-pcie: switch to FIELD_PREP_WM16 macro clk: sp7021: switch to FIELD_PREP_WM16 macro PCI: dw-rockchip: Switch to FIELD_PREP_WM16 macro PCI: rockchip: Switch to FIELD_PREP_WM16* macros net: stmmac: dwmac-rk: switch to FIELD_PREP_WM16 macro ASoC: rockchip: i2s-tdm: switch to FIELD_PREP_WM16_CONST macro drm/rockchip: dw_hdmi: switch to FIELD_PREP_WM16* macros phy: rockchip-usb: switch to FIELD_PREP_WM16 macro drm/rockchip: inno-hdmi: switch to FIELD_PREP_WM16 macro drm/rockchip: dw_hdmi_qp: switch to FIELD_PREP_WM16 macro phy: rockchip-samsung-dcphy: switch to FIELD_PREP_WM16 macro drm/rockchip: vop2: switch to FIELD_PREP_WM16 macro drm/rockchip: dsi: switch to FIELD_PREP_WM16* macros phy: rockchip-emmc: switch to FIELD_PREP_WM16 macro drm/rockchip: lvds: switch to FIELD_PREP_WM16 macro ...
2025-10-02drm/i915/dp: Handle Synaptics DSC throughput link-bpp quirkImre Deak
Handle the DSC pixel throughput quirk, limiting the compressed link-bpp value for Synaptics Panamera branch devices, working around a blank/unstable output issue observed on docking stations containing these branch devices, when using a mode with a high pixel clock and a high compressed link-bpp value. For now use the same mode clock limit for RGB/YUV444 and YUV422/420 output modes. This may result in limiting the link-bpp value for a YUV422/420 output mode already at a lower than required mode clock. v2: Apply the quirk only when DSC is enabled. v3 (Ville): - Move adjustment of link-bpp within the already existing is_dsc if branch. - Add TODO comment to move the HW revision check as well to the DRM core quirk table. v4: - Fix incorrect fxp_q4_from_int(INT_MAX) vs. INT_MAX return value from dsc_throughput_quirk_max_bpp_x16(). Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-by: Vidya Srinivas <vidya.srinivas@intel.com> Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-7-imre.deak@intel.com
2025-10-02drm/i915/dp: Verify branch devices' overall pixel throughput/line widthImre Deak
Read out the branch devices' maximum overall DSC pixel throughput and line width and verify the mode's corresponding pixel clock and hactive period against these. v2: Use drm helpers to query the throughput/line-width caps. (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-6-imre.deak@intel.com
2025-10-02drm/i915/dp: Pass DPCD device descriptor to intel_dp_get_dsc_sink_cap()Imre Deak
Pass the DPCD sink/branch device descriptor along with the is_branch/sink flag to intel_dp_get_dsc_sink_cap(). These will be used by a follow up change to read out the branch device's DSC overall throughput/line width capabilities and to detect a throughput/link-bpp quirk. Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-5-imre.deak@intel.com
2025-10-02drm/i915/dp: Calculate DSC slice count based on per-slice peak throughputImre Deak
Use the DSC sink device's actual per-slice peak throughput to calculate the minimum number of required DSC slices, falling back to the hard-coded throughput values (as suggested by the DP Standard) if the device's reported throughput value is 0. For now use the minimum of the two throughput values, which is ok, potentially resulting in a higher than required minimum slice count. This doesn't change the current way of using the same minimum throughput value regardless of the RGB/YUV output format used. While at it add a TODO comment for MST tiled displays to calculate the slice count for these based on the total pixel rate of all the tiles. v2: Use drm helpers to query the throughput caps. (Ville) v3: Add TODO comment to account for MST tiled displays. (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-4-imre.deak@intel.com
2025-10-02drm/dp: Add helpers to query the branch DSC max throughput/line-widthImre Deak
Add helpers to query the DP DSC sink device's per-slice throughput as well as a DSC branch device's overall throughput and line-width capabilities. v2 (Ville): - Rename pixel_clock to peak_pixel_rate, document what the value means in case of MST tiled displays. - Fix name of drm_dp_dsc_branch_max_slice_throughput() to drm_dp_dsc_sink_max_slice_throughput(). v3: - Fix the DSC branch device minimum valid line width value from 2560 to 5120 pixels. - Fix drm_dp_dsc_sink_max_slice_throughput()'s pixel_clock parameter name to peak_pixel_rate in header file. - Add handling for throughput mode 0 granular delta, defined by DP Standard v2.1a. v4: - Remove the default switch case in drm_dp_dsc_sink_max_slice_throughput(), which is unreachable in the current code. (Ville) Cc: dri-devel@lists.freedesktop.org Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-3-imre.deak@intel.com
2025-10-02drm/dp: Add quirk for Synaptics DSC throughput link-bpp limitImre Deak
Some Synaptics MST branch devices have a problem decompressing a stream with a compressed link-bpp higher than 12, if the pixel clock is higher than ~50 % of the maximum throughput capability reported by the branch device. The screen remains blank, or for some - mostly black content - gets enabled, but may stil have jitter artifacts. At least the following docking stations are affected, based on testing both with any Intel devices or the UCD-500 reference device as a source: - DELL WD19DCS, DELL WD19TB3, DELL WD22TB4 - ThinkPad 40AN - HP G2 At least the following docking stations are free from this problem, based on tests with a source/sink/mode etc. configuration matching the test cases used above: - DELL Dual Charge HD22Q, DELL WD25TB5 - ThinkPad 40B0 - Anker 565 All the affected devices have an older version of the Synaptics MST branch device (Panamera), whereas all the non-affected docking stations have a newer branch device (at least Synaptics Panamera with a higher HW revision number and Synaptics Cayenne models). Add the required quirk entries accordingly. The quirk will be handled by the i915/xe drivers in a follow-up change. The latest firmware version of the Synaptics branch device for all the affected devices tested above is 5.7 (as reported at DPCD address 0x50a/0x50b). For the DELL devices this corresponds to the latest 01.00.14.01.A03 firmware package version of the docking station. v2: - Document the DP_DPCD_QUIRK_DSC_THROUGHPUT_BPP_LIMIT enum. - Describe the quirk in more detail in the dpcd_quirk_list. v3: - s/Panarema/Panamera in the commit log. Cc: dri-devel@lists.freedesktop.org Reported-by: Vidya Srinivas <vidya.srinivas@intel.com> Reported-and-tested-by: Swati Sharma <swati2.sharma@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250930182450.563016-2-imre.deak@intel.com
2025-10-02drm/xe/doc: Add documentation for Execution QueuesNiranjana Vishwanathapura
Add documentation for Xe Execution Queues and add xe_exec_queue.rst file. v2: Add info about how Execution queue interfaces with other components in the driver (Matt Brost) Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20251002044319.450181-2-niranjana.vishwanathapura@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-10-02drm/xe/i2c: Don't rely on d3cold.allowed flag in system PM pathRaag Jadav
In S3 and above sleep states, the device can loose power regardless of d3cold.allowed flag. Bring up I2C controller explicitly in system PM path to ensure its normal operation after losing power. v2: Cover S3 and above states (Rodrigo) Fixes: 0ea07b69517a ("drm/xe/pm: Wire up suspend/resume for I2C controller") Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20250918103200.2952576-1-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-10-02drm/xe/xe_late_bind_fw: Initialize uval variable in xe_late_bind_fw_num_fans()Mallesh Koujalagi
Initialize the uval variable to 0 in xe_late_bind_fw_num_fans() to fix a potential use of uninitialized variable warning and ensure predictable behavior. The variable is passed by reference to xe_pcode_read() which should populate it on success, but initializing it to 0 provides a safe default value and follows kernel coding best practices. v2: - uval = 0 which serves as both a safe default and the fallback value when the pcode read operation fails. v3: - Handle MMIO failure (Rodrigo) - The function should probably return the error and make the uval as pointer-argument, like the pcode_read. - Change the caller of this function to propagate the error upwards if mmio failed. Fixes: 45832bf9c10f3 ("drm/xe/xe_late_bind_fw: Initialize late binding firmware") Signed-off-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com> Link: https://lore.kernel.org/r/20251002005648.3185636-1-mallesh.koujalagi@intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-10-02drm/i915/gvt: Propagate vfio_set_irqs_validate_and_prepare() errorAndi Shyti
Return the actual error code from vfio_set_irqs_validate_and_prepare() instead of always collapsing to -EINVAL. While the helper currently returns -EINVAL in most cases, passing through the real error code is more future-proof. While at it, drop the stray 'intel:' prefix from the error message. Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Reviewed-by: Zhenyu Wang <zhenyuw.linux@gmail.com> Link: https://lore.kernel.org/r/20251001142336.82089-1-andi.shyti@linux.intel.com
2025-10-02drm/gpusvm, drm/xe: Fix userptr to not allow device private pagesThomas Hellström
When userptr is used on SVM-enabled VMs, a non-NULL hmm_range::dev_private_owner value might mean that hmm_range_fault() attempts to return device private pages. Either that will fail, or the userptr code will not know how to handle those. Use NULL for hmm_range::dev_private_owner to migrate such pages to system. In order to do that, move the struct drm_gpusvm::device_private_page_owner field to struct drm_gpusvm_ctx::device_private_page_owner so that it doesn't remain immutable over the drm_gpusvm lifetime. v2: - Don't conditionally compile xe_svm_devm_owner(). - Kerneldoc xe_svm_devm_owner(). Fixes: 9e9787414882 ("drm/xe/userptr: replace xe_hmm with gpusvm") Cc: Matthew Auld <matthew.auld@intel.com> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/20250930122752.96034-1-thomas.hellstrom@linux.intel.com
2025-10-01Merge tag 'linux_kselftest-kunit-6.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - New parameterized test features KUnit parameterized tests supported two primary methods for getting parameters: - Defining custom logic within a generate_params() function. - Using the KUNIT_ARRAY_PARAM() and KUNIT_ARRAY_PARAM_DESC() macros with a pre-defined static array and passing the created *_gen_params() to KUNIT_CASE_PARAM(). These methods present limitations when dealing with dynamically generated parameter arrays, or in scenarios where populating parameters sequentially via generate_params() is inefficient or overly complex. These limitations are fixed with a parameterized test method - Fix issues in kunit build artifacts cleanup - Fix parsing skipped test problem in kselftest framework - Enable PCI on UML without triggering WARN() - a few other fixes and adds support for new configs such as MIPS * tag 'linux_kselftest-kunit-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: Extend kconfig help text for KUNIT_UML_PCI rust: kunit: allow `cfg` on `test`s kunit: qemu_configs: Add MIPS configurations kunit: Enable PCI on UML without triggering WARN() Documentation: kunit: Document new parameterized test features kunit: Add example parameterized test with direct dynamic parameter array setup kunit: Add example parameterized test with shared resource management using the Resource API kunit: Enable direct registration of parameter arrays to a KUnit test kunit: Pass parameterized test context to generate_params() kunit: Introduce param_init/exit for parameterized test context management kunit: Add parent kunit for parameterized test context kunit: tool: Accept --raw_output=full as an alias of 'all' kunit: tool: Parse skipped tests from kselftest.h kunit: Always descend into kunit directory during build
2025-10-01Merge tag 'pm-6.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "The majority of these are cpufreq changes, which has been a recurring pattern for a few recent cycles. Those changes include new hardware support (AN7583 SoC support in the airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support in the ti cpufreq driver), DT bindings and Rust code updates, cleanups of the core and governors, and multiple driver fixes and cleanups. Beyond that, there are hibernation fixes (some remaining 6.16 cycle fallout and an issue related to hybrid suspend in the amdgpu driver), cleanups of the PM core code, runtime PM documentation update, cpuidle and power capping cleanups, and tooling updates. Specifics: - Rearrange variable declarations involving __free() in the cpufreq core and intel_pstate driver to follow common coding style (Rafael Wysocki) - Fix object lifecycle issue in update_qos_request(), rearrange freq QoS updates using __free(), and adjust frequency percentage computations in the intel_pstate driver (Rafael Wysocki) - Update intel_pstate to allow it to enable HWP without EPP if the new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael Wysocki) - Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to simplify the code (Rafael Wysocki) - Use likely() optimization in intel_pstate_sample() (Yaxiong Tian) - Remove dead EPB-related code from intel_pstate (Srinivas Pandruvada) - Use scope-based cleanup for cpufreq policy references in multiple cpufreq drivers (Zihuan Zhang) - Avoid calling get_governor() for the first policy in the cpufreq core to simplify the initial policy path (Zihuan Zhang) - Clean up the cpufreq core in multiple places (Zihuan Zhang) - Use int type to store negative error codes in the cpufreq core and update the speedstep-lib to use int for error codes (Qianfeng Rong) - Update the efficient idle check for Intel extended Families in the ondemand cpufreq governor (Sohil Mehta) - Replace sscanf() with kstrtouint() in the conservative cpufreq governor (Kaushlendra Kumar) - Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste Lepers) - Update ARef and AlwaysRefCounted imports from sync::aref in the OPP Rust code (Shankari Anand) - Add support for AN7583 SoC to the airoha cpufreq driver (Christian Marangi) - Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md Sadre Alam) - Add support for MT8196 to the mediatek-hw cpufreq driver, refactor that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas Frattaroli) - Avoid redundant conditions in the mediatek cpufreq driver (Liao Yuanhong) - Add support for AM62D2 to the ti cpufreq driver and blocklist ti,am62d2 SoC in dt-platdev (Paresh Bhagat) - Support more speed grades on AM62Px SoC in the ti cpufreq driver, allow all silicon revisions to support OPPs in it, and fix supported hardware for 1GHz OPP (Judith Mendez) - Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya Das) - Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian Fainelli) - Remove outdated cpufreq-dt.txt (Frank Li) - Fix python gnuplot package names in the amd_pstate_tracer utility (Kuan-Wei Chiu) - Saravana Kannan will maintain the virtual-cpufreq driver (Saravana Kannan) - Prevent CPU capacity updates after registering a perf domain from failing on a first CPU that is not present (Christian Loehle) - Add support for the cases in which frequency alone is not sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru) - Use to_result() for OPP error handling in Rust (Onur Özkan) - Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi devfreq driver (Nicolas Frattaroli) - Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X) are reported as half by adding a cycle multiplier to the DFI driver in rockchip-dfi devfreq-event driver (Nicolas Frattaroli) - Fix missing error pointer dereference check of regulator instance in the mtk-cci devfreq driver probe and remove a redundant condition from an if () statement in that driver (Dan Carpenter, Liao Yuanhong) - Fail cpuidle device registration if there is one already to avoid sysfs-related issues (Rafael Wysocki) - Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf() in cpuidle (Vivek Yadav) - Fix device and OF node leaks at probe in the qcom-spm cpuidle driver and drop unnecessary initialisations from it (Johan Hovold) - Remove unnecessary address-of operators from the intel_idle cpuidle driver (Kaushlendra Kumar) - Rearrange main loop in menu_select() to make the code in that funtion easier to follow (Rafael Wysocki) - Convert values in microseconds to ktime using us_to_ktime() where applicable in the intel_idle power capping driver (Xichao Zhao) - Annotate loops walking device links in the power management core code as _srcu and add macros for walking device links to reduce the likelihood of coding mistakes related to them (Rafael Wysocki) - Document time units for *_time functions in the runtime PM API (Brian Norris) - Clear power.must_resume in noirq suspend error path to avoid resuming a dependant device under a suspended parent or supplier (Rafael Wysocki) - Fix GFP mask handling during hybrid suspend and make the amdgpu driver handle hybrid suspend correctly (Mario Limonciello, Rafael Wysocki) - Fix GFP mask handling after aborted hibernation in platform mode and combine exit paths in power_down() to avoid code duplication (Rafael Wysocki) - Use vmalloc_array() and vcalloc() in the hibernation core to avoid open-coded size computations (Qianfeng Rong) - Fix typo in hibernation core code comment (Li Jun) - Call pm_wakeup_clear() in the same place where other functions that do bookkeeping prior to suspend_prepare() are called (Samuel Wu) - Fix and clean up the x86_energy_perf_policy utility and update its documentation (Len Brown, Kaushlendra Kumar) - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra Kumar) - Fix incorrect size in cpuidle_state_disable() and the error return value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)" * tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits) PM: hibernate: Combine return paths in power_down() PM: hibernate: Restrict GFP mask in power_down() PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage PM: runtime: Documentation: ABI: Document time units for *_time tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces tools/power x86_energy_perf_policy: Add make snapshot target tools/power x86_energy_perf_policy: Prefer driver HWP limits tools/power x86_energy_perf_policy: EPB access is only via sysfs tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring tools/power x86_energy_perf_policy: Enhance HWP enable tools/power x86_energy_perf_policy: Enhance HWP enabled check tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage tools/power turbostat: Fix incorrect sorting of PMT telemetry drm/amd: Fix hybrid sleep PM: hibernate: Add pm_hibernation_mode_is_suspend() PM: hibernate: Fix hybrid-sleep tools/cpupower: Fix incorrect size in cpuidle_state_disable() tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names cpufreq: Replace pointer subtraction with iteration macro cpuidle: Fail cpuidle device registration if there is one already ...
2025-10-01Merge tag 'driver-core-6.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core updates from Danilo Krummrich: "Auxiliary: - Drop call to dev_pm_domain_detach() in auxiliary_bus_probe() - Optimize logic of auxiliary_match_id() Rust: - Auxiliary: - Use primitive C types from prelude - DebugFs: - Add debugfs support for simple read/write files and custom callbacks through a File-type-based and directory-scope-based API - Sample driver code for the File-type-based API - Sample module code for the directory-scope-based API - I/O: - Add io::poll module and implement Rust specific read_poll_timeout() helper - IRQ: - Implement support for threaded and non-threaded device IRQs based on (&Device<Bound>, IRQ number) tuples (IrqRequest) - Provide &Device<Bound> cookie in IRQ handlers - PCI: - Support IRQ requests from IRQ vectors for a specific pci::Device<Bound> - Implement accessors for subsystem IDs, revision, devid and resource start - Provide dedicated pci::Vendor and pci::Class types for vendor and class ID numbers - Implement Display to print actual vendor and class names; Debug to print the raw ID numbers - Add pci::DeviceId::from_class_and_vendor() helper - Use primitive C types from prelude - Various minor inline and (safety) comment improvements - Platform: - Support IRQ requests from IRQ vectors for a specific platform::Device<Bound> - Nova: - Use pci::DeviceId::from_class_and_vendor() to avoid probing non-display/compute PCI functions - Misc: - Add helper for cpu_relax() - Update ARef import from sync::aref sysfs: - Remove bin_attrs_new field from struct attribute_group - Remove read_new() and write_new() from struct bin_attribute Misc: - Document potential race condition in get_dev_from_fwnode() - Constify node_group argument in software node registration functions - Fix order of kernel-doc parameters in various functions - Set power.no_pm flag for faux devices - Set power.no_callbacks flag along with the power.no_pm flag - Constify the pmu_bus bus type - Minor spelling fixes" * tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (43 commits) rust: pci: display symbolic PCI vendor names rust: pci: display symbolic PCI class names rust: pci: fix incorrect platform reference in PCI driver probe doc comment rust: pci: fix incorrect platform reference in PCI driver unbind doc comment perf: make pmu_bus const samples: rust: Add scoped debugfs sample driver rust: debugfs: Add support for scoped directories samples: rust: Add debugfs sample driver rust: debugfs: Add support for callback-based files rust: debugfs: Add support for writable files rust: debugfs: Add support for read-only files rust: debugfs: Add initial support for directories driver core: auxiliary bus: Optimize logic of auxiliary_match_id() driver core: auxiliary bus: Drop dev_pm_domain_detach() call driver core: Fix order of the kernel-doc parameters driver core: get_dev_from_fwnode(): document potential race drivers: base: fix "publically"->"publicly" driver core/PM: Set power.no_callbacks along with power.no_pm driver core: faux: Set power.no_pm for faux devices rust: pci: inline several tiny functions ...
2025-10-01gpu/drm: panel: Add Sharp LQ079L1SX01 panel supportSvyatoslav Ryhel
This panel requires dual-channel mode. The device accepts video-mode data on 8 lanes and will therefore need a dual-channel DSI controller. The two interfaces that make up this device need to be instantiated in the controllers that gang up to provide the dual-channel DSI host. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250919153839.236241-3-clamor95@gmail.com
2025-10-01drm/dp: clamp PWM bit count to advertised MIN and MAX capabilitiesChristopher Obbard
According to the eDP specification (VESA Embedded DisplayPort Standard v1.4b, Section 3.3.10.2), if the value of DP_EDP_PWMGEN_BIT_COUNT is less than DP_EDP_PWMGEN_BIT_COUNT_CAP_MIN, the sink is required to use the MIN value as the effective PWM bit count. This commit updates the logic to clamp the reported DP_EDP_PWMGEN_BIT_COUNT to the range defined by _CAP_MIN and _CAP_MAX. As part of this change, the behavior is modified such that reading both _CAP_MIN and _CAP_MAX registers is now required to succeed, otherwise bl->max value could end up being not set although drm_edp_backlight_probe_max() returned success. This ensures correct handling of eDP panels that report a zero PWM bit count but still provide valid non-zero MIN and MAX capability values. Without this clamping, brightness values may be interpreted incorrectly, leading to a dim or non-functional backlight. For example, the Samsung ATNA40YK20 OLED panel used in the Lenovo ThinkPad T14s Gen6 (Snapdragon) reports a PWM bit count of 0, but supports AUX backlight control and declares a valid 11-bit range. Clamping ensures brightness scaling works as intended on such panels. Co-developed-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Christopher Obbard <christopher.obbard@linaro.org> Tested-by: Christopher Obbard <christopher.obbard@linaro.org> Reviewed-by: Christopher Obbard <christopher.obbard@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250814-topic-x1e80100-t14s-oled-dp-brightness-v7-1-b3d7b4dfe8c5@linaro.org
2025-10-01drm/panel: visionox-rm69299: Add backlight supportGuido Günther
The shift6mq's variant supports controlling the backlight via DSI commands. Use that if a max_brightness is set in the device specific data. Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250910-shift6mq-panel-v3-3-a7729911afb9@sigxcpu.org
2025-10-01drm/panel: visionox-rm69299: Don't clear all mode flagsGuido Günther
Don't clear all mode flags. We only want to maek sure we use HS mode during unprepare. Fixes: c7f66d32dd431 ("drm/panel: add support for rm69299 visionox panel") Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250910-shift6mq-panel-v3-2-a7729911afb9@sigxcpu.org
2025-10-01drm/panel: visionox-rm69299: Fix clock frequency for SHIFT6mqGuido Günther
Make the clock frequency match what the sdm845 downstream kernel uses. Otherwise the panel stays black. Fixes: 783334f366b18 ("drm/panel: visionox-rm69299: support the variant found in the SHIFT6mq") Signed-off-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250910-shift6mq-panel-v3-1-a7729911afb9@sigxcpu.org
2025-10-01drm/panel: ilitek-ili9881c: Add configuration for 5" Raspberry Pi 720x1280Marek Vasut
Add configuration for the 5" Raspberry Pi 720x1280 DSI panel based on ili9881. This uses 10px longer horizontal sync pulse and 10px shorter HBP to avoid very short hsync pulse. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250904205743.186177-2-marek.vasut+renesas@mailbox.org
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