gpu:nvgpu: add bar2 aperture support

Bug 1587825

Change-Id: I884c6b268aabb04b4990713395ebedf92410e02a
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/659239
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 79bc50af..8470a7ac 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -347,6 +347,12 @@ struct mm_gk20a {
                 u32 aperture_size;
                 struct vm_gk20a vm;
                 struct inst_desc inst_block;
+        } bar2;
+
+        struct {
+                u32 aperture_size;
+                struct vm_gk20a vm;
+                struct inst_desc inst_block;
         } pmu;
 
         struct mutex l2_op_lock;
@@ -534,6 +540,15 @@ int gk20a_vm_map_buffer(struct gk20a_as_share *as_share,
                         int kind,
                         u64 buffer_offset,
                         u64 mapping_size);
+
+int gk20a_init_vm(struct mm_gk20a *mm,
+                struct vm_gk20a *vm,
+                u32 big_page_size,
+                u64 low_hole,
+                u64 aperture_size,
+                bool big_pages,
+                char *name);
+void gk20a_deinit_vm(struct vm_gk20a *vm);
 int gk20a_vm_unmap_buffer(struct gk20a_as_share *, u64 offset);
 void gk20a_get_comptags(struct device *dev, struct dma_buf *dmabuf,
                         struct gk20a_comptags *comptags);