gpu: nvgpu: add vidmem manager

Use the nvgpu-internal buddy allocator for video memory allocations,
instead of nvmap. This allows better integration for copyengine, BAR1
mapping to userspace, etc.

Jira DNVGPU-38

Change-Id: I9fd67b76cd39721e4cd8e525ad0ed76f497e8b99
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1181151
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 184c1f71..d7503948 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -391,9 +391,11 @@ struct mm_gk20a {
         bool force_pramin; /* via debugfs */
 #endif
 
-        size_t vidmem_size;
-        struct device vidmem_dev;
-        u32 ce_vidmem_ctx_id;
+        struct {
+                size_t size;
+                struct gk20a_allocator allocator;
+                u32 ce_ctx_id;
+        } vidmem;
 };
 
 int gk20a_mm_init(struct mm_gk20a *mm);