drm/nouveau/kms/nv04-nv40: fix pageflip events via special case.

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commit af4870e406 upstream.

Cards with nv04 display engine can't reliably use vblank
counts and timestamps computed via drm_handle_vblank(), as
the function gets invoked after sending the pageflip events.

Fix this by defaulting to the old crtcid = -1 fallback path
on <= NV-50 cards, and only using the precise path on NV-50
and later.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mario Kleiner 2014-05-13 00:42:08 +02:00 • committed by Greg Kroah-Hartman

parent 7e1c10796c

commit 45780fdb97

1 changed files with 8 additions and 2 deletions

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drivers/gpu/drm/nouveau/nouveau_display.c

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