Re: 3.18-rc regression: drm/nouveau: use shared fences for readable objects

From: Tobias Klausmann
Date: Wed Nov 19 2014 - 18:09:09 EST

On 19.11.2014 09:10, Maarten Lankhorst wrote:
On the EDITED patch from fixed-fences-for-bisect, can you do the following:

In nouveau/nv84_fence.c function nv84_fence_context_new, remove

fctx->base.sequence = nv84_fence_read(chan);

and add back

nouveau_bo_wr32(priv->bo, chan->chid * 16/4, 0x00000000);


Added the above on top of your "fixed-fences-for-bisect" branch and guessed it would work, but did not :/
Anyway, as this "initializes" the fence to a known state, maybe you should consider pushing that.

Going to compile the kernel with trace events (lets see how) ...

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