kernel/linux.git/drivers/gpu/drm/drm_vblank.c, branch linux-7.0.y

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'drm-misc-next-2025-12-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2025-12-26T08:15:33+00:00

drm-misc-next for 6.19: UAPI Changes: - panfrost: Add PANFROST_BO_SYNC ioctl - panthor: Add PANTHOR_BO_SYNC ioctl Core Changes: - atomic: Add drm_device pointer to drm_private_obj - bridge: Introduce drm_bridge_unplug, drm_bridge_enter, and drm_bridge_exit - dma-buf: Improve sg_table debugging - dma-fence: Add new helpers, and use them when needed - dp_mst: Avoid out-of-bounds access with VCPI==0 - gem: Reduce page table overhead with transparent huge pages - panic: Report invalid panic modes - sched: Add TODO entries - ttm: Various cleanups - vblank: Various refactoring and cleanups - Kconfig cleanups - Removed support for kdb Driver Changes: - amdxdna: Fix race conditions at suspend, Improve handling of zero tail pointers, Fix cu_idx being overwritten during command setup - ast: Support imported cursor buffers - - panthor: Enable timestamp propagation, Multiple improvements and fixes to improve the overall robustness, notably of the scheduler. - panels: - panel-edp: Support for CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H Signed-off-by: Dave Airlie [airlied: fix mm conflict] From: Maxime Ripard Link: https://patch.msgid.link/20251212-spectacular-agama-of-abracadabra-aaef32@penduick

drm/vblank: prefer drm_crtc_vblank_crtc() over drm_vblank_crtc()

2025-12-11T14:55:36+00:00

Use the higher level function where crtc is available. v2: Rebase Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/29a29e746bc90c824d4f2bd15e42817dd7d0b199.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: use the drm_vblank_crtc() and drm_crtc_vblank_crtc() helpers more

2025-12-11T14:55:36+00:00

We have the helpers to avoid open coding dev->vblank[pipe] access. v2: Rebase Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/ad41f25c625d6a263b7e2e1d227cb14c5d0ce204.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: limit vblank variable scope to atomic

2025-12-11T14:55:36+00:00

In drm_crtc_vblank_helper_get_vblank_timestamp_internal(), we only need the vblank variable for atomic modesetting. Limit the scope to make upcoming changes easier. Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/b50f0bff654a6902ffd7ae52c31d46fad9ed7540.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: add return value to drm_crtc_wait_one_vblank()

2025-12-11T14:55:36+00:00

Let drivers deal with the vblank wait failures if they so desire. If the current warning backtrace gets toned down to a simple warning message, the drivers may wish to add the backtrace themselves. Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/7f2de4dd170771991756073f037c7ca043c3e746.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: remove superfluous pipe check

2025-12-11T14:55:36+00:00

Now that the pipe is crtc->pipe, there's no need to check it's within range. Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/ced963542bfb00c2f1a653e9e5f717fccbd25132.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: remove drm_wait_one_vblank() completely

2025-12-11T14:55:36+00:00

There's really no need for the extra static function at all. Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/fe969aad198d3f151fafd01faca5b0e73bfd9a03.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/vblank: Unexport drm_wait_one_vblank()

2025-12-11T14:55:36+00:00

Make drm_wait_on_vblank() static. The function is an internal interface and not invoked directly by drivers. Signed-off-by: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/b0ab9833a85f5fb6de95ad6cb0216864bf860c9e.1765290097.git.jani.nikula@intel.com Signed-off-by: Jani Nikula