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drm/amdgpu: search only the BO list for VM mappings 

Make UVD/VCE VM emulation more efficient.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-12-22 16:06:12 +01:00 committed by Alex Deucher
parent 1ea863fd73
commit 15486fd20c
1 changed files with 13 additions and 7 deletions
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20
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -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;
}
}