Hi Am 20.01.21 um 12:12 schrieb Gerd Hoffmann:
Balances the qxl_create_bo(..., pinned=true, ...); call in qxl_release_bo_alloc(). Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> --- drivers/gpu/drm/qxl/qxl_release.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c index 0fcfc952d5e9..add979cba11b 100644 --- a/drivers/gpu/drm/qxl/qxl_release.c +++ b/drivers/gpu/drm/qxl/qxl_release.c @@ -166,6 +166,7 @@ qxl_release_free_list(struct qxl_release *release) entry = container_of(release->bos.next, struct qxl_bo_list, tv.head); bo = to_qxl_bo(entry->tv.bo); + bo->tbo.pin_count = 0; /* ttm_bo_unpin(&bo->tbo); */
This code looks like a workaround or a bug.AFAICT the only place with pre-pinned BO is qdev->dumb_shadow_bo. Can you remove the pinned flag entirely and handle pinning as part of dumb_shadow_bo's code.
Otherwise maybe use
if (pin_count)
ttm_bo_unpin();
WARN_ON(pin_count); /* should always be 0 now */
with a comment similar to the commit's description.
Best regards
Thomas
qxl_bo_unref(&bo); list_del(&entry->tv.head); kfree(entry);
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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