iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: Fix always_valid bos multiple LRU insertions.

Browse Source 
commit a20ee0b1f8b42e2568f3a4408003d22b2dfcc706 upstream.

If these bos are evicted and are in the validated list
things blow up, so do not put them in there. Notably,
that tries to add the bo to the LRU twice, which results
in a BUG_ON in ttm_bo.c.

While for the bo_list an alternative would be to not allow
always valid bos in there, that does not work for the user
fence.

v2: Fixed whitespace issue pointed out by checkpatch.pl

Signed-off-by: Bas Nieuwenhuizen <basni@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bas Nieuwenhuizen 2018-01-31 13:58:55 +01:00 committed by Greg Kroah-Hartman
parent 54279928a8
commit 267e6921ca
2 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
View File

@ -201,8 +201,10 @@ void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
for (i = 0; i < list->num_entries; i++) {
unsigned priority = list->array[i].priority;
list_add_tail(&list->array[i].tv.head,
&bucket[priority]);
if (!list->array[i].robj->parent)
list_add_tail(&list->array[i].tv.head,
&bucket[priority]);
list->array[i].user_pages = NULL;
}

2
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
View File

@ -519,7 +519,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
INIT_LIST_HEAD(&duplicates);
amdgpu_vm_get_pd_bo(&fpriv->vm, &p->validated, &p->vm_pd);
if (p->uf_entry.robj)
if (p->uf_entry.robj && !p->uf_entry.robj->parent)
list_add(&p->uf_entry.tv.head, &p->validated);
if (need_mmap_lock)