sna: Enable use of GPU tiling even when SET_TILING fails

Graphics / X.Org / xf86-video-intel - Chris Wilson [chris-wilson.co.uk] - 1 June 2015 02:25 UTC

On gen4+, we no longer need to setup a fence for tiled operations and so can program the GPU irrespective of the kernel tiled settings. However, this means that we then cannot access the object through a GTT mmapping (as we have no fence to do detiling) and nor can we use a WC mmap as the swizzle is unknown.

14b5ab3 sna: Enable use of GPU tiling even when SET_TILING fails
src/sna/kgem.c | 76 ++++++++++++++++++++++++++++++++++++++++++--------------
src/sna/kgem.h | 1 +
2 files changed, 59 insertions(+), 18 deletions(-)

Upstream: cgit.freedesktop.org

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