lwn.git/drivers/gpu/drm/nouveau/nouveau_display.c, branch v6.8-rc5

nouveau: don't fail driver load if no display hw present.

2023-11-15T17:23:31+00:00

If we get back ENODEV don't fail load. There are nvidia devices that don't have display blocks and the driver should work on those. Fixes: 15740541e8f0 ("drm/nouveau/devinit/tu102-: prepare for GSP-RM") Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/270 Signed-off-by: Dave Airlie Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20231115143933.261287-1-airlied@gmail.com

drm/nouveau/kms/nv50-: disable dcb parsing

2023-09-19T22:22:30+00:00

- nvkm should provide all this info now - preparation for GSP-RM Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul Acked-by: Danilo Krummrich Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20230919220442.202488-45-lyude@redhat.com

drm/nouveau/disp: use drm_kms_helper_connector_hotplug_event()

2023-07-10T07:45:56+00:00

This adds more information to the hotplug uevent and lets user-space know that it's about a particular connector only. Signed-off-by: Simon Ser Cc: Ben Skeggs Cc: Lyude Paul Cc: David Airlie Cc: Karol Herbst Reviewed-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20230620181547.272476-1-contact@emersion.fr

drm/nouveau/kms: switch to drm fbdev helpers

2022-11-09T00:44:27+00:00

This removes support for accelerated fbcon rendering, and fixes a number of races/crashes/issues around suspend/resume/module unload etc. Losing HW accelerated rendering isn't ideal, but it's been significantly reduced in performance since the removal of accelerated scrolling in the kernel anyway - not to mention, can be racey (skips cpu<->gpu sync) from certain contexts. Signed-off-by: Ben Skeggs

drm/nouveau/disp: expose conn event class

2022-11-09T00:44:27+00:00

This removes some now-unnecessary nesting of workqueues. v2: - use ?: (lyude) Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul

drm/nouveau/disp: expose head event class

2022-11-09T00:44:27+00:00

Also fixes vblank interrupts being left enabled when they're not meant to be as a result of races/bugs in previous event handling code. v2: - use ?: (lyude) Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul

drm/nouveau/disp: move head scanoutpos method

2022-11-09T00:43:10+00:00

Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul

drm/nouveau/disp: add method to trigger DP link retrain

2022-11-09T00:43:10+00:00

This moves control of link retraining in response to HPD IRQ to the KMS driver's HPD IRQ handler. NVKM still handles checking link status for the moment, this can be moved to the KMS driver when it takes explicit control of link rate selection. v2: - skip source config on retrain (fixes some retrain failures) Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul

drm/nouveau/kms: pass event mask to hpd handler

2022-11-09T00:43:10+00:00

Will be moving the DP link status check / re-train here so it's safe from racing with modeset routing changes. MST message handling etc. will remain where it is. Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul

drm/nouveau/kms: switch hpd_lock from mutex to spinlock

2022-11-09T00:43:09+00:00

There's no good reason for this to be a mutex, and once the layers of workqueues have been untangled, nouveau_connector_hpd() can be called from IRQ context and won't be able to take a mutex. Signed-off-by: Ben Skeggs Reviewed-by: Lyude Paul