gpu: nvgpu: vgpu: remove smmu checkings

Currently vgpu always disable smmu.

Jira EVLR-2364

Change-Id: I54dfa5ff6bfda56975617ec526d80359bf3cf672
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1649938
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nirav Patel <nipatel@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/mm_vgpu.c b/drivers/gpu/nvgpu/common/linux/vgpu/mm_vgpu.c
index d2cb4442..fe6c2e82 100644
--- a/drivers/gpu/nvgpu/common/linux/vgpu/mm_vgpu.c
+++ b/drivers/gpu/nvgpu/common/linux/vgpu/mm_vgpu.c
@@ -16,7 +16,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <linux/dma-mapping.h>
 #include <uapi/linux/nvgpu.h>
 
 #include <nvgpu/kmem.h>
@@ -162,8 +161,6 @@ void vgpu_vm_remove(struct vm_gk20a *vm)
 
 u64 vgpu_bar1_map(struct gk20a *g, struct sg_table **sgt, u64 size)
 {
-        struct dma_iommu_mapping *mapping =
-                        to_dma_iommu_mapping(dev_from_gk20a(g));
         u64 addr = nvgpu_mem_get_addr_sgl(g, (*sgt)->sgl);
         struct tegra_vgpu_cmd_msg msg;
         struct tegra_vgpu_as_map_params *p = &msg.params.as_map;
@@ -173,7 +170,7 @@ u64 vgpu_bar1_map(struct gk20a *g, struct sg_table **sgt, u64 size)
         msg.handle = vgpu_get_handle(g);
         p->addr = addr;
         p->size = size;
-        p->iova = mapping ? 1 : 0;
+        p->iova = 0;
         err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
         if (err || msg.ret)
                 addr = 0;