kernel/linux.git/include/drm/drm_client_event.h, branch v6.19.11

drm/client: Pass force parameter to client restore

2025-11-25T07:43:46+00:00

Add force parameter to client restore and pass value through the layers. The only currently used value is false. If force is true, the client should restore its display even if it does not hold the DRM master lock. This is be required for emergency output, such as sysrq. While at it, inline drm_fb_helper_lastclose(), which is a trivial wrapper around drm_fb_helper_restore_fbdev_mode_unlocked(). Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://patch.msgid.link/20251110154616.539328-2-tzimmermann@suse.de

drm/client: Remove holds_console_lock parameter from suspend/resume

2025-10-18T15:35:09+00:00

No caller of the client resume/suspend helpers holds the console lock. The last such cases were removed from radeon in the patch series at [1]. Now remove the related parameter and the TODO items. v2: - update placeholders for CONFIG_DRM_CLIENT=n Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/series/151624/ # [1] Reviewed-by: Rodrigo Vivi Acked-by: Rodrigo Vivi Reviewed-by: Petr Vorel Reviewed-by: Andi Shyti Acked-by: Danilo Krummrich Reviewed-by: Lyude Paul Reviewed-by: Jocelyn Falempe Link: https://lore.kernel.org/r/20251001143709.419736-1-tzimmermann@suse.de

drm/client: include types.h to make drm_client_event.h self-contained

2025-02-12T08:44:43+00:00

drm_client_event.h uses bool without types.h, include it. Fixes: bf17766f1083 ("drm/client: Move suspend/resume into DRM client callbacks") Cc: Thomas Zimmermann Acked-by: Simona Vetter Link: https://patchwork.freedesktop.org/patch/msgid/6c69cb005cc3a2b968b6c9675d0ba03173f6c574.1737556766.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/client: Make client support optional

2024-10-18T07:23:03+00:00

Only build client code if DRM_CLIENT has been selected. Automatially do so if one of the default clients has been enabled. If client support has been disabled, the helpers for client-related events are empty and the regular client functions are not present. Amdgpu has an internal DRM client, so it has to select DRM_CLIENT by itself unconditionally. v3: - provide empty drm_client_debugfs_init() if DRM_CLIENT=n (kernel test robot) Signed-off-by: Thomas Zimmermann Cc: Alex Deucher Cc: "Christian König" Cc: Xinhui Pan Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-12-tzimmermann@suse.de

drm/client: Move suspend/resume into DRM client callbacks

2024-10-18T07:23:03+00:00

Suspend and resume is still tied to fbdev emulation. Modeset helpers and several drivers call drm_fb_helper_set_suspend_unlocked() to inform the fbdev client about suspend/resume events. To make it work with arbitrary clients, add per-client callback functions for suspend and resume. Implement them for fbdev emulation with the existing drm_fb_helper_set_suspend_unlocked(). Then update DRM's modeset helpers to call the new interface. Clients that are not fbdev can now implement suspend/resume to their requirements. The callback parameter holds_console_lock is a workaround for i915, radeon and xe, which possibly call the interface while having the console lock acquired. Even though the commit doesn't modify these drivers, it already adds the flag to avoid churn later on. New code should not hold the console lock. v4: - clarify holds_console_lock in commit description (Jonathan) Signed-off-by: Thomas Zimmermann Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-8-tzimmermann@suse.de

drm/client: Move client event handlers to drm_client_event.c

2024-10-18T07:23:03+00:00

A number of DRM-client functions serve as entry points from device operations to client code. Moving them info a separate file will later allow for a more fine-grained kernel configuration. For most of the users it is sufficient to include instead of the full driver-side interface in v2: - rename new files to drm_client_event.{c,h} Signed-off-by: Thomas Zimmermann Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Joonas Lahtinen Cc: Tvrtko Ursulin Cc: Karol Herbst Cc: Lyude Paul Cc: Danilo Krummrich Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de