gpu: nvgpu: vgpu: add platform atomic support

Set platform atomic attribute flag.

bug 200580236

Change-Id: I06fd0cf363886922ad5145837004d04e35383470
Signed-off-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2016078
(cherry picked from commit ef5aac37d9a4531fecd1f1dae0581a2bd28f164d)
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2274970
GVS: Gerrit_Virtual_Submit
Tested-by: Sreeniketh H <sh@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 7 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h b/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
index 5ee50b18..6abb5e33 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
@@ -1,7 +1,7 @@
 /*
  * Tegra GPU Virtualization Interfaces to Server
  *
- * Copyright (c) 2014-2018, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2020, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -175,6 +175,7 @@ struct tegra_vgpu_as_map_params {
 #define TEGRA_VGPU_MAP_CACHEABLE        (1 << 0)
 #define TEGRA_VGPU_MAP_IO_COHERENT      (1 << 1)
 #define TEGRA_VGPU_MAP_L3_ALLOC         (1 << 2)
+#define TEGRA_VGPU_MAP_PLATFORM_ATOMIC  (1 << 3)
 
 struct tegra_vgpu_as_map_ex_params {
         u64 handle;
diff --git a/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c b/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
index 4b06aea8..1f537d48 100644
--- a/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
+++ b/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU Memory Management
  *
- * Copyright (c) 2015-2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2020, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -179,6 +179,10 @@ u64 vgpu_gp10b_locked_gmmu_map(struct vm_gk20a *vm,
                 p->flags |= TEGRA_VGPU_MAP_IO_COHERENT;
         if (flags & NVGPU_VM_MAP_L3_ALLOC)
                 p->flags |= TEGRA_VGPU_MAP_L3_ALLOC;
+        if (flags & NVGPU_VM_MAP_PLATFORM_ATOMIC) {
+                p->flags |= TEGRA_VGPU_MAP_PLATFORM_ATOMIC;
+        }
+
         p->prot = prot;
         p->ctag_offset = ctag_offset;
         p->clear_ctags = clear_ctags;