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drm/amdgpu: split VM PD and PT handling during CS

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This way we avoid the extra allocation for the page directory entry.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
This commit is contained in:
Christian König
2015-12-11 15:16:32 +01:00
committed by Alex Deucher
parent 3c0eea6c35
commit 56467ebfb2
4 changed files with 51 additions and 29 deletions
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45
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@@ -75,39 +75,50 @@ static unsigned amdgpu_vm_directory_size(struct amdgpu_device *adev)
}
/**
* amdgpu_vm_get_bos - add the vm BOs to a validation list
* amdgpu_vm_get_pd_bo - add the VM PD to a validation list
*
* @vm: vm providing the BOs
* @validated: head of validation list
* @entry: entry to add
*
* Add the page directory to the list of BOs to
* validate for command submission.
*/
void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
struct list_head *validated,
struct amdgpu_bo_list_entry *entry)
{
entry->robj = vm->page_directory;
entry->prefered_domains = AMDGPU_GEM_DOMAIN_VRAM;
entry->allowed_domains = AMDGPU_GEM_DOMAIN_VRAM;
entry->priority = 0;
entry->tv.bo = &vm->page_directory->tbo;
entry->tv.shared = true;
list_add(&entry->tv.head, validated);
}
/**
* amdgpu_vm_get_bos - add the vm BOs to a validation list
*
* @vm: vm providing the BOs
* @duplicates: head of duplicates list
*
* Add the page directory to the list of BOs to
* validate for command submission (cayman+).
*/
struct amdgpu_bo_list_entry *amdgpu_vm_get_bos(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
struct list_head *validated,
struct list_head *duplicates)
struct amdgpu_bo_list_entry *amdgpu_vm_get_pt_bos(struct amdgpu_vm *vm,
struct list_head *duplicates)
{
struct amdgpu_bo_list_entry *list;
unsigned i, idx;
list = drm_malloc_ab(vm->max_pde_used + 2,
list = drm_malloc_ab(vm->max_pde_used + 1,
sizeof(struct amdgpu_bo_list_entry));
if (!list) {
if (!list)
return NULL;
}
/* add the vm page table to the list */
list[0].robj = vm->page_directory;
list[0].prefered_domains = AMDGPU_GEM_DOMAIN_VRAM;
list[0].allowed_domains = AMDGPU_GEM_DOMAIN_VRAM;
list[0].priority = 0;
list[0].tv.bo = &vm->page_directory->tbo;
list[0].tv.shared = true;
list_add(&list[0].tv.head, validated);
for (i = 0, idx = 1; i <= vm->max_pde_used; i++) {
for (i = 0, idx = 0; i <= vm->max_pde_used; i++) {
if (!vm->page_tables[i].bo)
continue;