linux-next.git/drivers/gpu/drm/drm_modes.c, branch master

drm/modes: Add DRM_MODE_MATCH_TIMINGS_VRR

2026-06-24T15:54:10+00:00

Add a new mode matching flag DRM_MODE_MATCH_TIMINGS_VRR. This is identical to DRM_MODE_MATCH_TIMINGS, except it requires the vsync pulse to remain anchored to the end of vtotal, as opposed to the start of the frame. VRR capable hardware can therefore treat matching modes as just variants of the same mode with a different vblank lengths. Reviewed-by: Suraj Kandpal Acked-by: Maarten Lankhorst Signed-off-by: Ville Syrjälä Link: https://patch.msgid.link/20260622213602.7244-3-ville.syrjala@linux.intel.com Tested-by: Vidya Srinivas Acked-by: Jani Nikula

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 'v6.13-rc6' into drm-next

2025-01-10T04:24:17+00:00

This backmerges Linux 6.13-rc6 this is need for the newer pulls. Signed-off-by: Dave Airlie

drm/modes: Fix drm_mode_vrefres() docs

2024-12-13T22:23:45+00:00

We no longer store a cache vrefresh value in the mode. Remove the stale information from drm_vrefresh() docs. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20241129042629.18280-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula

drm/modes: Avoid divide by zero harder in drm_mode_vrefresh()

2024-12-13T22:05:32+00:00

drm_mode_vrefresh() is trying to avoid divide by zero by checking whether htotal or vtotal are zero. But we may still end up with a div-by-zero of vtotal*htotal*... Cc: stable@vger.kernel.org Reported-by: syzbot+622bba18029bcde672e1@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=622bba18029bcde672e1 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20241129042629.18280-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula

drm: Fix kerneldoc for "Returns" section

2024-08-26T14:40:09+00:00

The blank line between title "Returns:" and detail description is not allowed, otherwise the title will goes under the description block in generated .html file after running `make htmldocs`. There are a few examples for current kerneldoc at [1][2][3]. v2: - use Link tag with stable URLs Signed-off-by: renjun wang Link: https://www.kernel.org/doc/html/v6.10/gpu/drm-kms.html#c.drm_crtc_commit_wait # 1 Link: https://www.kernel.org/doc/html/v6.10/gpu/drm-kms.html#c.drm_atomic_get_crtc_state # 2 Link: https://www.kernel.org/doc/html/v6.10/gpu/i915.html#c.i915_vma_pin_fence # 3 Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/tencent_37A873672B5CD20DECAF99DEDAC5E45C3106@qq.com

drm: Add DRM_MODE_TV_MODE_MONOCHROME

2024-06-18T09:13:30+00:00

Add this as a value for enum_drm_connector_tv_mode, represented by the string "Mono", to generate video with no colour encoding or bursts. Define it to have no pedestal (since only NTSC-M calls for a pedestal). Change default mode creation to acommodate the new tv_mode value which comprises both 525-line and 625-line formats. Acked-by: Daniel Vetter Signed-off-by: Nick Hollinghurst Signed-off-by: Dave Stevenson Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20240216184857.245372-2-dave.stevenson@raspberrypi.com

drm: prefer DRM_MODE_FMT/ARG over drm_mode_debug_printmodeline()

2024-04-15T13:22:50+00:00

We have DRM_MODE_FMT and DRM_MODE_ARG() macros to allow unified debug printing of modes in any printk-formatted logging. Prefer them over drm_mode_debug_printmodeline(). This allows drm device specific logging of modes, in the right drm debug category, and inline with the rest of the logging instead of split to multiple lines. Suggested-by: Ville Syrjälä Reviewed-by: Ville Syrjälä Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/6df18588dfa17c5d0a1501f5af9ff21f25a1981b.1712568037.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/modes: switch to drm device based error logging

2024-04-15T13:22:03+00:00

Prefer drm_err() and drm_dbg_kms() over DRM_ERROR() and DRM_DEBUG_KMS(). Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/3342dd2e98fedd618e5aeef26c44044cd32ead20.1712568037.git.jani.nikula@intel.com Signed-off-by: Jani Nikula