gpu: nvgpu: Add translation for NVGPU MM flags

Add a translation layer to convert from the NVGPU_AS_* flags to
to new set of NVGPU_VM_MAP_* and NVGPU_VM_AREA_ALLOC_* flags.
This allows the common MM code to not depend on the UAPI header
defined for Linux.

In addition to this change a couple of other small changes were
made:

1. Deprecate, print a warning, and ignore usage of the
   NVGPU_AS_MAP_BUFFER_FLAGS_MAPPABLE_COMPBITS flag.
2. Move the t19x IO coherence flag from the t19x UAPI header
   to the regular UAPI header.

JIRA NVGPU-293

Change-Id: I146402b0e8617294374e63e78f8826c57cd3b291
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1599802
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 1 insertions, 6 deletions

diff --git a/include/uapi/linux/nvgpu-t19x.h b/include/uapi/linux/nvgpu-t19x.h
index 27db97c0..7fb7fc48 100644
--- a/include/uapi/linux/nvgpu-t19x.h
+++ b/include/uapi/linux/nvgpu-t19x.h
@@ -29,12 +29,6 @@
 #define NVGPU_GPU_IMPL_GV11B 0x0000000B
 #define NVGPU_GPU_IMPL_GV100 0x00000000
 
-/*
- * this flag is used in struct nvgpu_as_map_buffer_ex_args
- * to provide L3 cache allocation hint
- */
-#define NVGPU_AS_MAP_BUFFER_FLAGS_L3_ALLOC      (1 << 7)
-
 /*  subcontexts are available */
 #define NVGPU_GPU_FLAGS_SUPPORT_TSG_SUBCONTEXTS         (1ULL << 22)
 
diff --git a/include/uapi/linux/nvgpu.h b/include/uapi/linux/nvgpu.h
index 20a6de29..bf711ef8 100644
--- a/include/uapi/linux/nvgpu.h
+++ b/include/uapi/linux/nvgpu.h
@@ -1762,6 +1762,7 @@ struct nvgpu_as_bind_channel_args {
 #define NVGPU_AS_MAP_BUFFER_FLAGS_IO_COHERENT       (1 << 4)
 #define NVGPU_AS_MAP_BUFFER_FLAGS_UNMAPPED_PTE      (1 << 5)
 #define NVGPU_AS_MAP_BUFFER_FLAGS_MAPPABLE_COMPBITS (1 << 6)
+#define NVGPU_AS_MAP_BUFFER_FLAGS_L3_ALLOC          (1 << 7)
 #define NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL  (1 << 8)
 
 /*