drm/amdgpu: move VM page tables to the LRU end on CS v2
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>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index ce0254d..1fffc33 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -428,8 +428,10 @@
r = amdgpu_cs_list_validate(p->adev, &fpriv->vm, &duplicates);
error_validate:
- if (r)
+ if (r) {
+ amdgpu_vm_move_pt_bos_in_lru(p->adev, &fpriv->vm);
ttm_eu_backoff_reservation(&p->ticket, &p->validated);
+ }
error_reserve:
if (need_mmap_lock)
@@ -473,8 +475,11 @@
**/
static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error, bool backoff)
{
+ struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
unsigned i;
+ amdgpu_vm_move_pt_bos_in_lru(parser->adev, &fpriv->vm);
+
if (!error) {
/* Sort the buffer list from the smallest to largest buffer,
* which affects the order of buffers in the LRU list.