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/drivers/gpu/nvgpu/common/linux/vgpu/gp10b/vgpu_mm_gp10b.c b/drivers/gpu/nvgpu/common/linux/vgpu/gp10b/vgpu_mm_gp10b.c
index 8c5a6d27..b857ea95 100644
--- a/drivers/gpu/nvgpu/common/linux/vgpu/gp10b/vgpu_mm_gp10b.c
+++ b/drivers/gpu/nvgpu/common/linux/vgpu/gp10b/vgpu_mm_gp10b.c
@@ -165,7 +165,10 @@ u64 vgpu_gp10b_locked_gmmu_map(struct vm_gk20a *vm,
         p->pgsz_idx = pgsz_idx;
         p->iova = 0;
         p->kind = kind_v;
-        p->cacheable = (flags & NVGPU_VM_MAP_CACHEABLE) ? 1 : 0;
+        if (flags & NVGPU_VM_MAP_CACHEABLE)
+                p->flags = TEGRA_VGPU_MAP_CACHEABLE;
+        if (flags & NVGPU_VM_MAP_IO_COHERENT)
+                p->flags |= TEGRA_VGPU_MAP_IO_COHERENT;
         p->prot = prot;
         p->ctag_offset = ctag_offset;
         p->clear_ctags = clear_ctags;