Konsta Holtta f438c66598 gpu: nvgpu: force clean patch ctx begin/end ...

This patch_context map/unmap pair has become a mere wrapper for the more
general gk20a_mem_{begin,end}(). To be consistent about mappings,
require that each patch_write is surrounded by an explicit begin/end
pair, instead of relying on possible inefficient per-write map/unmap.

Remove also the cpu_va check from .._write_end() since the buffers may
be exist in vidmem without a cpu mapping.

JIRA DNVGPU-24

Change-Id: Ia05d52d3d712f2d63730eedc078845fde3e217c1
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1157298
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2016-06-22 08:30:05 -07:00

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