On ma, 2016-08-01 at 19:22 +0100, Chris Wilson wrote: > Since we are not concerned with userspace racing itself with set-tiling > (the order is indeterminant even if we take a lock), then we can safely > read back the single obj->tiling_mode and do the static lookup of > swizzle mode without having to take a lock. > > get-tiling is reasonably frequent due to the back-channel passing around > of tiling parameters in DRI2/DRI3. > > v2: Make tiling_mode a full unsigned int so that we can trivially use it > with READ_ONCE(). Separating it out into manual control over the flags > field was too noisy for a simple patch. Note, that we can use the lower s/, / /,s/can/could/ With that, Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Regards, Joonas -- Joonas Lahtinen Open Source Technology Center Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
