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gpu: nvgpu: Remove PTE kind logic

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Since NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL was made mandatory,
kernel does not need to know the details about the PTE kinds
anymore. Thus, we can remove the kind_gk20a.h header and the code
related to kind table setup, as well as simplify buffer mapping code
a bit.

Bug 1902982

Change-Id: Iaf798023c219a64fb0a84da09431c5ce4bc046eb
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1560933
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sami Kiminki
2017-11-02 22:03:15 +02:00
committed by mobile promotions
parent b584bf8aa8
commit cefabe7eb1
20 changed files with 49 additions and 1529 deletions
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21
drivers/gpu/nvgpu/include/nvgpu/linux/vm.h
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@@ -38,25 +38,13 @@ struct vm_gk20a;
struct vm_gk20a_mapping_batch;
struct nvgpu_vm_area;
/* NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL must be set */
int nvgpu_vm_map_linux(struct vm_gk20a *vm,
struct dma_buf *dmabuf,
u64 offset_align,
u32 flags,
/*
* compressible kind if
* NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL is
* specified, otherwise just the kind
*/
s16 compr_kind,
/*
* incompressible kind if
* NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL is
* specified, otherwise ignored
*/
s16 incompr_kind,
int rw_flag,
u64 buffer_offset,
u64 mapping_size,
@@ -66,12 +54,7 @@ int nvgpu_vm_map_linux(struct vm_gk20a *vm,
/*
* Notes:
* - Batch may be NULL if map op is not part of a batch.
* - If NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL is set,
* compr_kind and incompr_kind work as explained in nvgpu.h.
* - If NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL is NOT set,
* compr_kind holds the kind and kernel will figure out whether
* it is a compressible or incompressible kind. If compressible, kernel will
* also figure out the incompressible counterpart or return an error.
* - NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL must be set
*/
int nvgpu_vm_map_buffer(struct vm_gk20a *vm,
int dmabuf_fd,