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gpu: nvgpu: Add translation for NVGPU MM flags

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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>
This commit is contained in:
Alex Waterman
2017-11-16 12:56:53 -08:00
committed by mobile promotions
parent b42fb7ba26
commit 35ae4194a0
16 changed files with 103 additions and 55 deletions
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8
drivers/gpu/nvgpu/common/linux/cde.c
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@@ -1052,9 +1052,9 @@ __releases(&l->cde_app->mutex)
/* map the destination buffer */
get_dma_buf(compbits_scatter_buf); /* a ref for nvgpu_vm_map_linux */
err = nvgpu_vm_map_linux(cde_ctx->vm, compbits_scatter_buf, 0,
NVGPU_AS_MAP_BUFFER_FLAGS_CACHEABLE |
NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL,
NV_KIND_INVALID,
NVGPU_VM_MAP_CACHEABLE |
NVGPU_VM_MAP_DIRECT_KIND_CTRL,
NVGPU_KIND_INVALID,
compbits_kind, /* incompressible kind */
gk20a_mem_flag_none,
map_offset, map_size,
@@ -1284,7 +1284,7 @@ static int gk20a_cde_load(struct gk20a_cde_ctx *cde_ctx)
/* map backing store to gpu virtual space */
vaddr = nvgpu_gmmu_map(ch->vm, &gr->compbit_store.mem,
g->gr.compbit_store.mem.size,
NVGPU_AS_MAP_BUFFER_FLAGS_CACHEABLE,
NVGPU_VM_MAP_CACHEABLE,
gk20a_mem_flag_read_only,
false,
gr->compbit_store.mem.aperture);