gpu: nvgpu: add platform specific get_iova_addr()

Add platform specific API pointer (*get_iova_addr)()
which can be used to get iova/physical address from
given scatterlist and flags

Use this API with g->ops.mm.get_iova_addr() instead
of calling API gk20a_mm_iova_addr() which makes it
platform specific

Bug 1605653

Change-Id: I798763db1501bd0b16e84daab68f6093a83caac2
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/713089
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 015c8274..19c9e786 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -349,6 +349,8 @@ struct gpu_ops {
                 const struct gk20a_mmu_level *
                         (*get_mmu_levels)(struct gk20a *g, u32 big_page_size);
                 void (*init_pdb)(struct gk20a *g, void *inst_ptr, u64 pdb_addr);
+                u64 (*get_iova_addr)(struct gk20a *g, struct scatterlist *sgl,
+                                         u32 flags);
         } mm;
         struct {
                 int (*prepare_ucode)(struct gk20a *g);