gpu: nvgpu: remove nvgpu_mem_{begin,end}()

The NVGPU_DMA_NO_KERNEL_MAPPING flag is going away, and these functions
are no longer used. Delete them.

Change-Id: I0084d64c92783dd65306871e5cf6bd6366087caf
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1761581
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/nvgpu_mem.h b/drivers/gpu/nvgpu/include/nvgpu/nvgpu_mem.h
index 93fce81e..dba7c320 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/nvgpu_mem.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/nvgpu_mem.h
@@ -319,14 +319,10 @@ int nvgpu_mem_create_from_mem(struct gk20a *g,
 void __nvgpu_mem_free_vidmem_alloc(struct gk20a *g, struct nvgpu_mem *vidmem);
 
 /*
- * Buffer accessors - wrap between begin() and end() if there is no permanent
- * kernel mapping for this buffer.
+ * Buffer accessors. Sysmem buffers always have a CPU mapping and vidmem
+ * buffers are accessed via PRAMIN.
  */
 
-int nvgpu_mem_begin(struct gk20a *g, struct nvgpu_mem *mem);
-/* nop for null mem, like with free() or vunmap() */
-void nvgpu_mem_end(struct gk20a *g, struct nvgpu_mem *mem);
-
 /* word-indexed offset */
 u32 nvgpu_mem_rd32(struct gk20a *g, struct nvgpu_mem *mem, u32 w);
 /* byte offset (32b-aligned) */