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3eef8918ff
By correctly describing the rinbuffers as being in the GTT domain, it appears that we are more careful with the management of the CPU cache upon resume and so prevent some coherency issue when submitting commands to the GPU later. A secondary effect is that the debug logs are then consistent with the actual usage (i.e. they no longer describe the ringbuffers as being in the CPU write domain when we are accessing them through an wc iomapping.) Reported-and-tested-by: Daniel Gnoutcheff <daniel@gnoutcheff.name> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41092 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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