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2025-09-17drm/i915: cache the results in vlv_clock_get_hpll_vco() and use it moreJani Nikula
Use vlv_clock_get_hpll_vco() helper more to avoid looking at i915->hpll_freq directly. Cache and return the cached results to avoid repeated lookups. v2: Rebase Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> # v1 Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/14695618682d8d8fad1adc485de7a122c8e1494a.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: rename vlv_get_hpll_vco() to vlv_clock_get_hpll_vco()Jani Nikula
Follow the new vlv_clock_*() naming pattern for all the related VLV clock functions. v2: Rebase Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/75ac6b1cda2cb0afe3171250c4d5ba1ff81df877.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: make vlv_get_cck_clock() staticJani Nikula
vlv_get_cck_clock() is no longer used outside of intel_display.c, make it static. Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/bac1fe98d9d458ef30e973f680342b69a6cde4d6.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: add vlv_clock_get_cdclk()Jani Nikula
Add vlv_clock_get_cdclk() helper to hide the details from the callers. For now, this means running vlv_get_hpll_vco() twice in vlv_get_cdclk(), but this will be improved later. v2: Rebase Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/fc93ccf998300048432d18ce7e8690bd54e1e18d.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: make vlv_get_cck_clock_hpll() staticJani Nikula
vlv_get_cck_clock_hpll() is no longer used outside of intel_display.c, make it static. Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/0a778d82e2be112b0cd37cd3329103a764967a1d.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: add vlv_clock_get_hrawclk()Jani Nikula
Add vlv_clock_get_hrawclk() helper to hide the details from the callers. Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/ad3c3d0baf16eb0ef3a0ac3edfbab327c564e743.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: add vlv_clock_get_czclk()Jani Nikula
Add vlv_clock_get_czclk() helper to avoid looking at i915->czclk_freq directly. Reviewed-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/4885f6e486a31c773a3bfebd6936670234e57bd0.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: add vlv_clock_get_gpll()Jani Nikula
Add a vlv_clock_get_gpll() helper to hide the details from the callers. Reviewed-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/2589396fa14388d7709d2b01f1d32f9f38dab11a.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: do cck get/put inside vlv_get_cck_clock()Jani Nikula
Move towards VLV/CHV clock interfaces that handle sideband get/put inside them instead of at the caller. With this, we can switch to the simpler vlv_punit_get()/vlv_punit_put() in vlv_get_cdclk(). We'll need to move vlv_init_gpll_ref_freq() outside of the existing get/put in vlv_rps_init() and chv_rps_init(). Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/480b654b6c736a03343dfd17eb130c39fd82c637.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17drm/i915: do cck get/put inside vlv_get_hpll_vco()Jani Nikula
Move towards VLV/CHV clock interfaces that handle sideband get/put inside them instead of at the caller. We'll need to move the calls outside of existing get/put. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/1a6553f54619275aa05512421e19115a71cd3eb0.1757688216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-09-17Merge tag 'drm-rust-next-2025-09-16' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/rust/kernel into drm-next DRM Rust changes for v6.18 Alloc - Add BorrowedPage type and AsPageIter trait - Implement Vmalloc::to_page() and VmallocPageIter - Implement AsPageIter for VBox and VVec DMA & Scatterlist - Add dma::DataDirection and type alias for dma_addr_t - Abstraction for struct scatterlist and struct sg_table DRM - In the DRM GEM module, simplify overall use of generics, add DriverFile type alias and drop Object::SIZE. Nova (Core) - Various register!() macro improvements (paving the way for lifting it to common driver infrastructure) - Minor VBios fixes and refactoring - Minor firmware request refactoring - Advance firmware boot stages; process Booter and patch its signature, process GSP and GSP bootloader - Switch development fimrware version to r570.144 - Add basic firmware bindings for r570.144 - Move GSP boot code to its own module - Clean up and take advantage of pin-init features to store most of the driver's private data within a single allocation - Update ARef import from sync::aref - Add website to MAINTAINERS entry Nova (DRM) - Update ARef import from sync::aref - Add website to MAINTAINERS entry Pin-Init - Merge pin-init PR from Benno - `#[pin_data]` now generates a `*Projection` struct similar to the `pin-project` crate. - Add initializer code blocks to `[try_][pin_]init!` macros: make initializer macros accept any number of `_: {/* arbitrary code */},` & make them run the code at that point. - Make the `[try_][pin_]init!` macros expose initialized fields via a `let` binding as `&mut T` or `Pin<&mut T>` for later fields. Rust - Various methods for AsBytes and FromBytes traits Tyr - Initial Rust driver skeleton for ARM Mali GPUs. - It can power up the GPU, query for GPU metatdata through MMIO and provide the metadata to userspace via DRM device IOCTL (struct drm_panthor_dev_query). Signed-off-by: Dave Airlie <airlied@redhat.com> From: "Danilo Krummrich" <dakr@kernel.org> Link: https://lore.kernel.org/r/DCUC4SY6SRBD.1ZLHAIQZOC6KG@kernel.org
2025-09-16drm/xe: Allow error injection for xe_pxp_exec_queue_addDaniele Ceraolo Spurio
This will allow us to simulate this function returning an error like we do for other functions called in the exec_queue_create path. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://lore.kernel.org/r/20250909221240.3711023-4-daniele.ceraolospurio@intel.com
2025-09-16drm/xe: Fix error handling if PXP fails to startDaniele Ceraolo Spurio
Since the PXP start comes after __xe_exec_queue_init() has completed, we need to cleanup what was done in that function in case of a PXP start error. __xe_exec_queue_init calls the submission backend init() function, so we need to introduce an opposite for that. Unfortunately, while we already have a fini() function pointer, it performs other operations in addition to cleaning up what was done by the init(). Therefore, for clarity, the existing fini() has been renamed to destroy(), while a new fini() has been added to only clean up what was done by the init(), with the latter being called by the former (via xe_exec_queue_fini). Fixes: 72d479601d67 ("drm/xe/pxp/uapi: Add userspace and LRC support for PXP-using queues") Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: John Harrison <John.C.Harrison@Intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://lore.kernel.org/r/20250909221240.3711023-3-daniele.ceraolospurio@intel.com
2025-09-16drm/amd: Only restore cached manual clock settings in restore if OD enabledMario Limonciello
If OD is not enabled then restoring cached clock settings doesn't make sense and actually leads to errors in resume. Check if enabled before restoring settings. Fixes: 4e9526924d09 ("drm/amd: Restore cached manual clock settings during resume") Reported-by: Jérôme Lécuyer <jerome.4a4c@gmail.com> Closes: https://lore.kernel.org/amd-gfx/0ffe2692-7bfa-4821-856e-dd0f18e2c32b@amd.com/T/#me6db8ddb192626360c462b7570ed7eba0c6c9733 Suggested-by: Jérôme Lécuyer <jerome.4a4c@gmail.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 1a4dd33cc6e1baaa81efdbe68227a19f51c50f20) Cc: stable@vger.kernel.org
2025-09-16drm/amdgpu: re-order and document VM codeChristian König
Re-order fields in the VM structure and try to improve the documentation a bit. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amdgpu: remove check for BO reservation add assert insteadChristian König
We should leave such checks to lockdep and not implement something manually. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Update pmfw headers for smu_v13_0_12Asad Kamal
Update pmfw headers for smu_v13_0_12 to include node power limit Signed-off-by: Asad Kamal <asad.kamal@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Rename amdgpu_hwmon_get_sensor_genericAsad Kamal
Rename amdgpu_hwmon_get_sensor_generic to use for generic pm interfaces Signed-off-by: Asad Kamal <asad.kamal@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd: Only restore cached manual clock settings in restore if OD enabledMario Limonciello
If OD is not enabled then restoring cached clock settings doesn't make sense and actually leads to errors in resume. Check if enabled before restoring settings. Fixes: 4e9526924d09 ("drm/amd: Restore cached manual clock settings during resume") Reported-by: Jérôme Lécuyer <jerome.4a4c@gmail.com> Closes: https://lore.kernel.org/amd-gfx/0ffe2692-7bfa-4821-856e-dd0f18e2c32b@amd.com/T/#me6db8ddb192626360c462b7570ed7eba0c6c9733 Suggested-by: Jérôme Lécuyer <jerome.4a4c@gmail.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the V14_0_2 smuRodrigo Siqueira
The I2C init for V14_0_2 uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that V14_0_2 init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the V13_0_6 smuRodrigo Siqueira
The I2C init for V13_0_6 uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that V13_0_6 init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the V13 smuRodrigo Siqueira
The I2C init for SMU_V13 uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that SMU_V13 init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the Sienna smuRodrigo Siqueira
The I2C init for Sienna Cichlid uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that Sienna Cichlid init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the Navi10 smuRodrigo Siqueira
The I2C init for Navi10 uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that Navi10 init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the Arcturus smuRodrigo Siqueira
The I2C init for Arcturus uses i2c_add_adapter() and i2c_del_adapter(), this commit replaces the use of these two functions with devm_i2c_add_adapter(). Notice that Arcturus init initializes multiple I2C buses in a loop; if something goes wrong, the previous adapters are removed, and the amdgpu load is interrupted. Since I2C init is required for the correct load of amdgpu, it is safe to rely on devm_i2c_add_adapter() to handle any previously initialized I2C adapter. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/pm: Use devm_i2c_add_adapter() in the i2c initRodrigo Siqueira
Instead of using i2c_add_adapter() and i2c_del_adapter(), replace them with devm_i2c_add_adapter() to simplify the i2c logic. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amdgpu: Use devm_i2c_add_adapter() in SMU V11Rodrigo Siqueira
Instead of using i2c_add_adapter() and i2c_del_adapter() in the SMU V11, use devm_i2c_add_adapter() to simplify the code path. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amdgpu/amdgpu_i2c: Use devm_i2c_add_adapter instead of i2c_add_adapterRodrigo Siqueira
This commit replaces i2c_add_adapter() with devm_i2c_add_adapter() and removes part of the cleanup logic since the new function handles the i2c removal. Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/display: Use devm_i2c_add_adapter to simplify i2c cleanup logicRodrigo Siqueira
This commit replaces the utilization of i2c_add/del_adapter() with devm_i2c_add_adapter() to reduce the amount of boilerplate. Using devm_i2c_add_adapter() has the advantage of removing the manual manipulation of the I2C adapter. Suggested-by: Robert Beckett <bob.beckett@collabora.com> Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amd/display: Use kmalloc_array() instead of kmalloc()James Flowers
Documentation/process/deprecated.rst recommends against the use of kmalloc with dynamic size calculations due to the risk of overflow and smaller allocation being made than the caller was expecting. This could lead to buffer overflow in code similar to the memcpy in amdgpu_dm_plane_add_modifier(). Signed-off-by: James Flowers <bold.zone2373@fastmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amdgpu: fix userq VM validation v4Christian König
That was actually complete nonsense and not validating the BOs at all. The code just cleared all VM areas were it couldn't grab the lock for a BO. Try to fix this. Only compile tested at the moment. v2: fix fence slot reservation as well as pointed out by Sunil. also validate PDs, PTs, per VM BOs and update PDEs v3: grab the status_lock while working with the done list. v4: rename functions, add some comments, fix waiting for updates to complete. v4: rename amdgpu_vm_lock_done_list(), add some more comments Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/amdgpu: reject gang submissions under SRIOVChristian König
Gang submission means that the kernel driver guarantees that multiple submissions are executed on the HW at the same time on different engines. Background is that those submissions then depend on each other and each can't finish stand alone. SRIOV now uses world switch to preempt submissions on the engines to allow sharing the HW resources between multiple VFs. The problem is now that the SRIOV world switch can't know about such inter dependencies and will cause a timeout if it waits for a partially running gang submission. To conclude SRIOV and gang submissions are fundamentally incompatible at the moment. For now just disable them. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-09-16drm/xe: Remove duplicate header filesYang Li
Fix some duplicate includes in xe: ./drivers/gpu/drm/xe/xe_tlb_inval.c: xe_tlb_inval.h is included more than once. ./drivers/gpu/drm/xe/xe_pt.c: xe_tlb_inval_job.h is included more than once. While at it, also sort the include lines alphabetically. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=24705 Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=24706 Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> [Reword commit message] Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250916021039.1632766-1-yang.lee@linux.alibaba.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-09-16drm/xe/guc: Return an error code if the GuC load failsJohn Harrison
Due to multiple explosion issues in the early days of the Xe driver, the GuC load was hacked to never return a failure. That prevented kernel panics and such initially, but now all it achieves is creating more confusing errors when the driver tries to submit commands to a GuC it already knows is not there. So fix that up. As a stop-gap and to help with debug of load failures due to invalid GuC init params, a wedge call had been added to the inner GuC load function. The reason being that it leaves the GuC log accessible via debugfs. However, for an end user, simply aborting the module load is much cleaner than wedging and trying to continue. The wedge blocks user submissions but it seems that various bits of the driver itself still try to submit to a dead GuC and lots of subsequent errors occur. And with regards to developers debugging why their particular code change is being rejected by the GuC, it is trivial to either add the wedge back in and hack the return code to zero again or to just do a GuC log dump to dmesg. v2: Add support for error injection testing and drop the now redundant wedge call. CC: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com> Link: https://lore.kernel.org/r/20250909224132.536320-1-John.C.Harrison@Intel.com
2025-09-16drm/tests: make sure drm_client_modeset tests are enabledDmitry Baryshkov
Default config for UML (x86_64) doesn't include any driver which supports DRM_CLIENT_SELECTION, which makes drm_client_modeset disabled (and correspondingly tests for that module are not executed too). Enable DRM_VKMS and DRM_FBDEV_EMULATION in order to be able to run DRM client modesetting tests. Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Link: https://lore.kernel.org/r/20250821-drm-client-tests-v1-1-49e7212c744a@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-09-16drm/i915/display: Use DISPLAY_VER over GRAPHICS_VERMatt Atwood
The checks in plane_has_modifier() should check against display version instead of graphics version. Bspec: 67165, 70815 Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com> Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Link: https://lore.kernel.org/r/20250903170821.310143-1-matthew.s.atwood@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2025-09-16drm/xe: Fix a NULL vs IS_ERR() in xe_vm_add_compute_exec_queue()Dan Carpenter
The xe_preempt_fence_create() function returns error pointers. It never returns NULL. Update the error checking to match. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/aJTMBdX97cof_009@stanley.mountain Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (cherry picked from commit 75cc23ffe5b422bc3cbd5cf0956b8b86e4b0e162) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-09-16drm/xe/sysfs: Add cleanup action in xe_device_sysfs_initZongyao Bai
On partial failure, some sysfs files created before the failure might not be removed. Add common cleanup step to remove them all immediately, as is should be harmless to attempt to remove non-existing files. Fixes: 0e414bf7ad01 ("drm/xe: Expose PCIe link downgrade attributes") Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Stuart Summers <stuart.summers@intel.com> Cc: Shuicheng Lin <shuicheng.lin@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Zongyao Bai <zongyao.bai@intel.com> Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250915214716.1327379-2-zongyao.bai@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-09-16drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error pathQi Xi
Add missing mutex unlock before returning from the error path in cdns_mhdp_atomic_enable(). Fixes: 935a92a1c400 ("drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Qi Xi <xiqi2@huawei.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250904034447.665427-1-xiqi2@huawei.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/imx: parallel-display: put the bridge returned by ↵Luca Ceresoli
drm_bridge_get_next_bridge() The bridge returned by drm_bridge_get_next_bridge() is refcounted. Put it when done. We need to ensure it is not put before either next_bridge or next_bridge_state is in use, thus for simplicity use a cleanup action. Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-9-888912b0be13@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/bridge: put the bridge returned by drm_bridge_get_next_bridge()Luca Ceresoli
The bridge returned by drm_bridge_get_next_bridge() is refcounted. Put it when done. We need to ensure it is not put before either next_bridge or next_bridge_state is in use, thus for simplicity use a cleanup action. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-8-888912b0be13@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/omap: use drm_for_each_bridge_in_chain_from()Luca Ceresoli
Use drm_for_each_bridge_in_chain_from _scoped() instead of an open-coded loop based on drm_bridge_get_next_bridge() to ensure the bridge being looped on is refcounted and simplify the driver code. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-9-edb6ee81edf1@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/bridge: use drm_for_each_bridge_in_chain_scoped()Luca Ceresoli
Use drm_for_each_bridge_in_chain_scoped() instead of drm_for_each_bridge_in_chain() to ensure the bridge being looped on is refcounted. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-6-edb6ee81edf1@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/atomic: use drm_for_each_bridge_in_chain_scoped()Luca Ceresoli
Use drm_for_each_bridge_in_chain_scoped() instead of drm_for_each_bridge_in_chain() to ensure the bridge being looped on is refcounted. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-5-edb6ee81edf1@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/display: bridge-connector: use drm_for_each_bridge_in_chain_scoped()Luca Ceresoli
Use drm_for_each_bridge_in_chain_scoped() instead of drm_for_each_bridge_in_chain() to ensure the bridge being looped on is refcounted. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-4-edb6ee81edf1@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16drm/display: bridge-connector: use scope-specific variable for the bridge ↵Luca Ceresoli
pointer Currently drm_bridge_connector_init() reuses the 'bridge' variable, first as a loop variable in the long drm_for_each_bridge_in_chain() and then in the HDMI-specific code as a shortcut to bridge_connector->bridge_cec. We are about to remove the 'bridge' loop variable for drm_for_each_bridge_in_chain() by moving to a scoped version of the same macro, which implies removing the 'bridge' variable from the main function scope. Additionally reusing the variable can make such long function less readable. Similarly to what commit 6f727c838ea8 ("drm/bridge-connector: Fix bridge in drm_connector_hdmi_audio_init()") already did for the audio HDMI bridge, use n local variable inside the scopes where it is needed as a bridge_connector->bridge_hdmi_cec shortcut to make its scope clearer as well as to allow removing the 'bridge' variable in an upcoming commit. Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-1-edb6ee81edf1@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16Merge drm/drm-next into drm-intel-gt-nextJoonas Lahtinen
Backmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter") To drm-intel-gt-next as there are followup fixes to be applied. Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2025-09-16drm/fb-helper: Synchronize dirty worker with vblankThomas Zimmermann
Before updating the display from the console's shadow buffer, the dirty worker now waits for a vblank. This allows several screen updates to pile up and acts as a rate limiter. If a DRM master is present, it could interfere with the vblank. Don't wait in this case. v4: * share code with WAITFORVSYNC ioctl (Emil) * use lock guard v3: * add back helper->lock * acquire DRM master status while waiting for vblank v2: * don't hold helper->lock while waiting for vblank Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://lore.kernel.org/r/20250829091447.46719-1-tzimmermann@suse.de
2025-09-16drm/i915/backlight: Honor VESA eDP backlight luminance control capabilityAaron Ma
The VESA AUX backlight fails to be enable luminance based backlight mainpulation becaused luminance_set is false by default. Fix it by using luminance support control capabitliy. Fixes: e13af5166a359 ("drm/i915/backlight: Use drm helper to initialize edp backlight") Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://lore.kernel.org/r/20250823121647.275834-1-aaron.ma@canonical.com (cherry picked from commit 72136efb875d8438c20b9c8ab72945d474933471) Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
2025-09-16drm/panic: use `core::ffi::CStr` method namesTamir Duberstein
Prepare for `core::ffi::CStr` taking the place of `kernel::str::CStr` by avoid methods that only exist on the latter. Link: https://github.com/Rust-for-Linux/linux/issues/1075 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>