Re: [PATCH v2 23/24] drm/i915: Add ww locking to pin_to_display_plane, v2.

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On 8/19/20 4:09 PM, Maarten Lankhorst wrote:
Use ww locking for pin_to_display_plane for all the pinning and locking.
With the locking removed from set_cache_level, we need to fix
i915_gem_set_caching_ioctl to take the object reservation lock.

As this is a single lock, we don't need to use the ww dance.

Changes since v1:
- Do not use ww locking in i915_gem_set_caching_ioctl (Thomas).

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>

Reviewed-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxx>


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