Deepak Nibade f43231f7a5 gpu: nvgpu: enable big page support for pci ...

While mapping the buffer, first check if buffer is in
vidmem, and if yes convert allocation into base address
And then walk through each chunk to decide the alignment

Add new API gk20a_mm_get_align() which returns the
alignment based on scatterlist and aperture, and use
this API to get alignment during mapping

Enable big page support for pci by unsetting disable_bigpage

Jira DNVGPU-97

Change-Id: I358dc98fac8103fdf9d2bde758e61b363fea9ae9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1207673
(cherry picked from commit d14d42290eed4aa7a2dd2be25e8e996917a58e82)
Reviewed-on: http://git-master/r/1210959
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2016-09-01 09:12:15 -07:00

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