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Commit 15486fd2 authored by Christian König's avatar Christian König Committed by Alex Deucher
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drm/amdgpu: search only the BO list for VM mappings 



Make UVD/VCE VM emulation more efficient.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 1ea863fd

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+13 −7
Original line number Diff line number Diff line
@@ -928,30 +928,36 @@ struct amdgpu_bo_va_mapping * 
amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,

		       uint64_t addr, struct amdgpu_bo **bo)

{

	struct amdgpu_bo_list_entry *reloc;

	struct amdgpu_bo_va_mapping *mapping;

	unsigned i;



	if (!parser->bo_list)

		return NULL;



	addr /= AMDGPU_GPU_PAGE_SIZE;



	list_for_each_entry(reloc, &parser->validated, tv.head) {

		if (!reloc->bo_va)

	for (i = 0; i < parser->bo_list->num_entries; i++) {

		struct amdgpu_bo_list_entry *lobj;



		lobj = &parser->bo_list->array[i];

		if (!lobj->bo_va)

			continue;



		list_for_each_entry(mapping, &reloc->bo_va->valids, list) {

		list_for_each_entry(mapping, &lobj->bo_va->valids, list) {

			if (mapping->it.start > addr ||

			    addr > mapping->it.last)

				continue;



			*bo = reloc->bo_va->bo;

			*bo = lobj->bo_va->bo;

			return mapping;

		}



		list_for_each_entry(mapping, &reloc->bo_va->invalids, list) {

		list_for_each_entry(mapping, &lobj->bo_va->invalids, list) {

			if (mapping->it.start > addr ||

			    addr > mapping->it.last)

				continue;



			*bo = reloc->bo_va->bo;

			*bo = lobj->bo_va->bo;

			return mapping;

		}

	}