gpu: nvgpu: Move DMA API to dma.h

Make an nvgpu DMA API include file so that the intricacies of the
Linux DMA API can be hidden from the calling code.

Also document the nvgpu DMA API.

JIRA NVGPU-12

Change-Id: I7578e4c726ad46344b7921179d95861858e9a27e
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1323326
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/Makefile.nvgpu b/drivers/gpu/nvgpu/Makefile.nvgpu
index 34d8d19f..d994ac1d 100644
--- a/drivers/gpu/nvgpu/Makefile.nvgpu
+++ b/drivers/gpu/nvgpu/Makefile.nvgpu
@@ -32,6 +32,7 @@ nvgpu-y := \
         common/linux/ioctl_tsg.o \
         common/linux/log.o \
         common/linux/nvgpu_mem.o \
+        common/linux/dma.o \
         common/mm/nvgpu_allocator.o \
         common/mm/bitmap_allocator.o \
         common/mm/buddy_allocator.o \