[Intel-gfx] [PATCH 2/4] drm/i915: Defer cleanup of active KMS state

[Maarten Lankhorst]

Op 15-06-17 om 10:25 schreef Chris Wilson:
> During cleanup we release the VMA of the previous framebuffer. This
> requires taking a struct_mutex, and potential recursion when handling a
> reset. A simple device here is to move that locking into its own work
> and we can avoid blocking on it for the reset by waiting on the flip
> completion (and not cleanup completion) instead. Ideally this reduces
> the duration of a blocking KMS operation by offloading the cleanup. Once
> again we dream of the legendary vblank worker.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 53 +++++++++++++++++++++++++++++-------
>  1 file changed, 43 insertions(+), 10 deletions(-)
Will this still pass the kms_cursor_legacy tests?

~Maarten