gpu: nvgpu: implement mapping for sparse allocation

Implement support for partial buffer mappings.

Whitelist gr_pri_bes_crop_hww_esr accessed by
fec during sparse texture initialization.

bug 1456562
bug 1369014
bug 1361532

Change-Id: Ib0d1ec6438257ac14b40c8466b37856b67e7e34d
Signed-off-by: Kirill Artamonov <kartamonov@nvidia.com>
Reviewed-on: http://git-master/r/375012
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index c759718e..7f86710b 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -414,7 +414,9 @@ u64 gk20a_vm_map(struct vm_gk20a *vm,
                 int kind,
                 struct sg_table **sgt,
                 bool user_mapped,
-                int rw_flag);
+                int rw_flag,
+                 u64 buffer_offset,
+                 u64 mapping_size);
 
 /* unmap handle from kernel */
 void gk20a_vm_unmap(struct vm_gk20a *vm, u64 offset);
@@ -455,7 +457,9 @@ int gk20a_vm_map_buffer(struct gk20a_as_share *as_share,
                         int dmabuf_fd,
                         u64 *offset_align,
                         u32 flags, /*NVHOST_AS_MAP_BUFFER_FLAGS_*/
-                        int kind);
+                        int kind,
+                        u64 buffer_offset,
+                        u64 mapping_size);
 int gk20a_vm_unmap_buffer(struct gk20a_as_share *, u64 offset);
 
 int gk20a_dmabuf_alloc_drvdata(struct dma_buf *dmabuf, struct device *dev);