git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-27 12:06:50 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: move VM page tables to the LRU end on CS v2

Browse Source 
This makes it less likely to run into an ENOMEM because
VM page tables are evicted last.

v2: move the BOs in the LRU tail after validation

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2016-01-11 15:35:21 +01:00
committed by Alex Deucher
parent ab74961810
commit eceb8a1562
3 changed files with 35 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@@ -119,6 +119,33 @@ void amdgpu_vm_get_pt_bos(struct amdgpu_vm *vm, struct list_head *duplicates)
list_add(&entry->tv.head, duplicates);
}
}
/**
* amdgpu_vm_move_pt_bos_in_lru - move the PT BOs to the LRU tail
*
* @adev: amdgpu device instance
* @vm: vm providing the BOs
*
* Move the PT BOs to the tail of the LRU.
*/
void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev,
struct amdgpu_vm *vm)
{
struct ttm_bo_global *glob = adev->mman.bdev.glob;
unsigned i;
spin_lock(&glob->lru_lock);
for (i = 0; i <= vm->max_pde_used; ++i) {
struct amdgpu_bo_list_entry *entry = &vm->page_tables[i].entry;
if (!entry->robj)
continue;
ttm_bo_move_to_lru_tail(&entry->robj->tbo);
}
spin_unlock(&glob->lru_lock);
}
/**