kernel.git/drivers/gpu/drm/i915/gem, branch linux-6.14.y

drm/i915: Increase I915_PARAM_MMAP_GTT_VERSION version to indicate support for partial mmaps

2025-03-11T18:51:36Z

Commit 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping") was the last patch of several patches fixing multiple partial mmaps. But without a bump in I915_PARAM_MMAP_GTT_VERSION there is no clean way for UMD to know if it can do multiple partial mmaps. Fixes: 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping") Cc: Andi Shyti Cc: Nirmoy Das Cc: Lionel Landwerlin Signed-off-by: José Roberto de Souza Reviewed-by: Nirmoy Das Link: https://patchwork.freedesktop.org/patch/msgid/20250306210827.171147-1-jose.souza@intel.com (cherry picked from commit bfef148f3680e6b9d28e7fca46d9520f80c5e50e) Signed-off-by: Rodrigo Vivi

drm/i915: Fix page cleanup on DMA remap failure

2025-02-03T14:26:49Z

When converting to folios the cleanup path of shmem_get_pages() was missed. When a DMA remap fails and the max segment size is greater than PAGE_SIZE it will attempt to retry the remap with a PAGE_SIZEd segment size. The cleanup code isn't properly using the folio apis and as a result isn't handling compound pages correctly. v2 -> v3: (Ville) Just use shmem_sg_free_table() as-is in the failure path of shmem_get_pages(). shmem_sg_free_table() will clear mapping unevictable but it will be reset when it retries in shmem_sg_alloc_table(). v1 -> v2: (Ville) Fixed locations where we were not clearing mapping unevictable. Cc: stable@vger.kernel.org Cc: Ville Syrjala Cc: Vidya Srinivas Link: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13487 Link: https://lore.kernel.org/lkml/20250116135636.410164-1-bgeffon@google.com/ Fixes: 0b62af28f249 ("i915: convert shmem_sg_free_table() to use a folio_batch") Signed-off-by: Brian Geffon Suggested-by: Tomasz Figa Link: https://patchwork.freedesktop.org/patch/msgid/20250127204332.336665-1-bgeffon@google.com Reviewed-by: Jonathan Cavitt Tested-by: Vidya Srinivas Signed-off-by: Ville Syrjälä (cherry picked from commit 9e304a18630875352636ad52a3d2af47c3bde824) Signed-off-by: Rodrigo Vivi

Merge tag 'kthread-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks

2025-01-22T01:10:05Z

Pull kthread updates from Frederic Weisbecker: "Kthreads affinity follow either of 4 existing different patterns: 1) Per-CPU kthreads must stay affine to a single CPU and never execute relevant code on any other CPU. This is currently handled by smpboot code which takes care of CPU-hotplug operations. Affinity here is a correctness constraint. 2) Some kthreads _have_ to be affine to a specific set of CPUs and can't run anywhere else. The affinity is set through kthread_bind_mask() and the subsystem takes care by itself to handle CPU-hotplug operations. Affinity here is assumed to be a correctness constraint. 3) Per-node kthreads _prefer_ to be affine to a specific NUMA node. This is not a correctness constraint but merely a preference in terms of memory locality. kswapd and kcompactd both fall into this category. The affinity is set manually like for any other task and CPU-hotplug is supposed to be handled by the relevant subsystem so that the task is properly reaffined whenever a given CPU from the node comes up. Also care should be taken so that the node affinity doesn't cross isolated (nohz_full) cpumask boundaries. 4) Similar to the previous point except kthreads have a _preferred_ affinity different than a node. Both RCU boost kthreads and RCU exp kworkers fall into this category as they refer to "RCU nodes" from a distinctly distributed tree. Currently the preferred affinity patterns (3 and 4) have at least 4 identified users, with more or less success when it comes to handle CPU-hotplug operations and CPU isolation. Each of which do it in its own ad-hoc way. This is an infrastructure proposal to handle this with the following API changes: - kthread_create_on_node() automatically affines the created kthread to its target node unless it has been set as per-cpu or bound with kthread_bind[_mask]() before the first wake-up. - kthread_affine_preferred() is a new function that can be called right after kthread_create_on_node() to specify a preferred affinity different than the specified node. When the preferred affinity can't be applied because the possible targets are offline or isolated (nohz_full), the kthread is affine to the housekeeping CPUs (which means to all online CPUs most of the time or only the non-nohz_full CPUs when nohz_full= is set). kswapd, kcompactd, RCU boost kthreads and RCU exp kworkers have been converted, along with a few old drivers. Summary of the changes: - Consolidate a bunch of ad-hoc implementations of kthread_run_on_cpu() - Introduce task_cpu_fallback_mask() that defines the default last resort affinity of a task to become nohz_full aware - Add some correctness check to ensure kthread_bind() is always called before the first kthread wake up. - Default affine kthread to its preferred node. - Convert kswapd / kcompactd and remove their halfway working ad-hoc affinity implementation - Implement kthreads preferred affinity - Unify kthread worker and kthread API's style - Convert RCU kthreads to the new API and remove the ad-hoc affinity implementation" * tag 'kthread-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks: kthread: modify kernel-doc function name to match code rcu: Use kthread preferred affinity for RCU exp kworkers treewide: Introduce kthread_run_worker[_on_cpu]() kthread: Unify kthread_create_on_cpu() and kthread_create_worker_on_cpu() automatic format rcu: Use kthread preferred affinity for RCU boost kthread: Implement preferred affinity mm: Create/affine kswapd to its preferred node mm: Create/affine kcompactd to its preferred node kthread: Default affine kthread to its preferred NUMA node kthread: Make sure kthread hasn't started while binding it sched,arm64: Handle CPU isolation on last resort fallback rq selection arm64: Exclude nohz_full CPUs from 32bits el0 support lib: test_objpool: Use kthread_run_on_cpu() kallsyms: Use kthread_run_on_cpu() soc/qman: test: Use kthread_run_on_cpu() arm/bL_switcher: Use kthread_run_on_cpu()

Merge tag 'drm-intel-gt-next-2025-01-10' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

2025-01-12T22:05:00Z

Driver Changes: - More robust engine resets on Haswell and older (Nitin) - Dead code removal (David) - Selftest, logging and tracing improvements (Sk, Nitin, Sebastian, Apoorva) Signed-off-by: Dave Airlie From: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/Z4DidoEACFu7D6iG@jlahtine-mobl.ger.corp.intel.com

treewide: Introduce kthread_run_worker[_on_cpu]()

2025-01-08T17:15:03Z

kthread_create() creates a kthread without running it yet. kthread_run() creates a kthread and runs it. On the other hand, kthread_create_worker() creates a kthread worker and runs it. This difference in behaviours is confusing. Also there is no way to create a kthread worker and affine it using kthread_bind_mask() or kthread_affine_preferred() before starting it. Consolidate the behaviours and introduce kthread_run_worker[_on_cpu]() that behaves just like kthread_run(). kthread_create_worker[_on_cpu]() will now only create a kthread worker without starting it. Signed-off-by: Frederic Weisbecker Signed-off-by: Dan Carpenter

drm/i915: Remove deadcode

2024-12-30T00:31:31Z

i915_active_acquire_for_context() was added in 2020 by commit 5d9341370f57 ("drm/i915: Export a preallocate variant of i915_active_acquire()") but has never been used. The last use of __i915_gem_object_is_lmem() was removed in 2021 by commit ff20afc4cee7 ("drm/i915: Update error capture code to avoid using the current vma state") Remove them. Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Tvrtko Ursulin Reviewed-by: Andi Shyti Signed-off-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20241227113754.25871-1-tursulin@igalia.com

Merge drm/drm-next into drm-intel-next

2024-12-11T20:06:05Z

Catching up with 6.13-rc2. Signed-off-by: Rodrigo Vivi

module: Convert symbol namespace to string literal

2024-12-02T19:34:44Z

Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS$([^)]*)$/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)$([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)$/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)$([^,]+), ([^)]+)$/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada Signed-off-by: Peter Zijlstra (Intel) Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH Signed-off-by: Linus Torvalds

Revert "drm/i915/dpt: Make DPT object unshrinkable"

2024-11-28T15:33:48Z

This reverts commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c. Now that we forcefully evict all DPT VMAs during suspend there should be no problem allowing the shrinker to eat the DPT objects. Cc: Brian Geffon Cc: Vidya Srinivas Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12965 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20241127061117.25622-5-ville.syrjala@linux.intel.com Acked-by: Brian Geffon Reviewed-by: Vidya Srinivas Tested-by: Vidya Srinivas

Merge tag 'drm-intel-next-2024-10-11' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

2024-10-17T23:13:31Z

drm/i915 features for v6.13: [airlied: fixed build problem xe->display] Features and functionality: - Enable BMG and LNL+ ultra joiner support to join 2+2 pipes (Ankit, Stan) - Enable 10bpc+CCS scanout for ICL+ and fp16+CCS scanout for TGL+ (Ville) - Use DSB for plane/color management commits (Ville) - Expose package temperature in hwmon (Raag) - Add more Arrow Lake (ARL) PCI IDs (Dnyaneshwar) - Add intel_display_caps debugfs for display capabilities and params (Jani) - Debug log detected LTTPR PHY descriptors (Imre) Refactoring and cleanups: - Add intel_bo abstraction to remove drm/xe -Ddrm_i915_gem_object=xe_bo hack (Jani) - IRQ enable/disable/suspend/resume cleanups (Rodrigo) - Pre-SKL watermark/CxSR cleanups (Ville) - Joiner refactoring and cleanups (Ankit, Stan) - Unify PCI ROM vs. SPI flash VBT read code paths (Ville) - Use the common gen3+ irq code for gen2 (Ville) - Display include cleanups (Jani) - Conversions from drm_i915_private to struct intel_display (Jani, Ville, Suraj) - Convert wakeref_t underlying type to struct ref_tracker * (Jani) - Hide VLV/CHV/BXT/GLK specific PPS handling better (Jani) - Split out DP test request handling to a separate file (Jani) - Add display snapshot abstraction for error state (Jani) - Register macro cleanups (Jani) - Add irq IMR/IER/IIR register triplet abstraction (Jani) - Remove IS_LP() (Jani) - Remove xe compat raw reg read/write support (Jani) - Remove unused macro parameter (He Lugang) - Fix typos and spelling (Yan Zhen, Shen Lichuan, Colin Ian King) - Minor code fixes (Yuesong Li, Chen Ni) - Minor modeset refactoring (Ville) Fixes: - Fix a number of DP 2.1 Panel Replay issues (Jouni) - Fix drm/xe display lockdep issues on runtime suspend/resume (Suraj) - Fix MTL C20 PHY PLL values for UHBR20 (Dnyaneshwar) - Fix DP FEC enabling for UHBR rates (Chaitanya) - Fix BMG supported UHBR rates (10 and 13.5) (Arun) - Fix BMG CCS modifiers (Juha-Pekka) - Fix AUX IO power enabling for eDP PSR (Imre) - Add PSR workarounds (Jouni) - Check for too low DSC BPC (Suraj) - Improve HDCP wakeup robustness after suspend/resume (Suraj) - Reduce ICP+ hotplug filter to 250 us to match DP spec (Suraj) - Fix PSR sink enable sequence (Ville) - Fix DP colorimetry detection (Ville) - Apply i915gm/i945gm irq C-state workaround to CRC interrupts (Ville) Merges: - Backmerge to fix cross-tree conflicts (Jani) - Backmerge to get v6.12-rc1 (Jani) Signed-off-by: Dave Airlie From: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/878quu6go9.fsf@intel.com