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>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/vm_area.h b/drivers/gpu/nvgpu/include/nvgpu/vm_area.h
index 7fc77b29..92852633 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/vm_area.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/vm_area.h
@@ -57,6 +57,12 @@ nvgpu_vm_area_from_vm_area_list(struct nvgpu_list_node *node)
                                             vm_area_list));
 };
 
+/*
+ * Alloc space flags.
+ */
+#define NVGPU_VM_AREA_ALLOC_FIXED_OFFSET                (1 << 0)
+#define NVGPU_VM_AREA_ALLOC_SPARSE                      (1 << 1)
+
 int nvgpu_vm_area_alloc(struct vm_gk20a *vm, u32 pages, u32 page_size,
                         u64 *addr, u32 flags);
 int nvgpu_vm_area_free(struct vm_gk20a *vm, u64 addr);