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gpu: nvgpu: VM map path refactoring

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Final VM mapping refactoring. Move most of the logic in the VM
map path to the common/mm/vm.c code and use the generic APIs
previously implemented to deal with comptags and map caching.

This also updates the mapped_buffer struct to finally be free
of the Linux dma_buf and scatter gather table pointers. This
is replaced with the nvgpu_os_buffer struct.

JIRA NVGPU-30
JIRA NVGPU-71
JIRA NVGPU-224

Change-Id: If5b32886221c3e5af2f3d7ddd4fa51dd487bb981
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1583987
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2017-10-20 10:26:22 -07:00
committed by mobile promotions
parent 8428c82c81
commit 01c98eb680
5 changed files with 360 additions and 251 deletions
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2
drivers/gpu/nvgpu/common/linux/cde.c
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@@ -64,7 +64,7 @@ static dma_addr_t gpuva_to_iova_base(struct vm_gk20a *vm, u64 gpu_vaddr)
nvgpu_mutex_acquire(&vm->update_gmmu_lock);
buffer = __nvgpu_vm_find_mapped_buf(vm, gpu_vaddr);
if (buffer)
addr = nvgpu_mem_get_addr_sgl(g, buffer->sgt->sgl);
addr = nvgpu_mem_get_addr_sgl(g, buffer->os_priv.sgt->sgl);
nvgpu_mutex_release(&vm->update_gmmu_lock);
return addr;