Chris Wilson abb0deacb5 drm/i915: Fallback to single PAGE_SIZE segments for DMA remapping ... If we at first do not succeed with attempting to remap our physical pages using a coalesced scattergather list, try again with one scattergather entry per page. This should help with swiotlb as it uses a limited buffer size and only searches for contiguous chunks within its buffer aligned up to the next boundary - i.e. we may prematurely cause a failure as we are unable to utilize the unused space between large chunks and trigger an error such as: i915 0000:00:02.0: swiotlb buffer is full (sz: 1630208 bytes) Reported-by: Juergen Gross <jgross@suse.com> Tested-by: Juergen Gross <jgross@suse.com> Fixes: 871dfbd67d ("drm/i915: Allow compaction upto SWIOTLB max segment size") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: <drm-intel-fixes@lists.freedesktop.org> Link: http://patchwork.freedesktop.org/patch/msgid/20161219124346.550-1-chris@chris-wilson.co.uk Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (cherry picked from commit d766ef5300) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2016-12-20 16:30:47 +02:00
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drm	drm/i915: Fallback to single PAGE_SIZE segments for DMA remapping	2016-12-20 16:30:47 +02:00
host1x	drm/tegra: dsi: Enhance runtime power management	2016-08-24 15:58:57 +02:00
ipu-v3	imx-drm plane update cleanup, YUV formats	2016-11-11 09:31:27 +10:00
vga	drivers/gpu/vga: allocate vga_arb_write() buffer on stack	2016-10-17 08:21:14 +02:00
Makefile