gpu: nvgpu: vgpu: add io coherency support

Modify command message parameter to support io
coherency.

Jira EVLR-2025

Change-Id: I38b21c72d85f559555c4d97dab73d0f715ecc655
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1614388
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/tegra_vgpu.h b/include/linux/tegra_vgpu.h
index 5c81e8c9..7b5c9e11 100644
--- a/include/linux/tegra_vgpu.h
+++ b/include/linux/tegra_vgpu.h
@@ -160,6 +160,9 @@ struct tegra_vgpu_as_map_params {
         u32 ctag_offset;
 };
 
+#define TEGRA_VGPU_MAP_CACHEABLE        (1 << 0)
+#define TEGRA_VGPU_MAP_IO_COHERENT      (1 << 1)
+
 struct tegra_vgpu_as_map_ex_params {
         u64 handle;
         u64 gpu_va;
@@ -168,7 +171,7 @@ struct tegra_vgpu_as_map_ex_params {
         u8 pgsz_idx;
         u8 iova;
         u8 kind;
-        u8 cacheable;
+        u32 flags;
         u8 clear_ctags;
         u8 prot;
         u32 ctag_offset;