On Mon, Jun 16, 2025 at 06:30:38PM +0200, Jacopo Mondi wrote:
> To detect leaks of display lists, store in the display list manager the
> number of allocated display lists when the manager is created and verify
> that when the display manager is reset the same number of lists is
> allocated.
"is available in the free list".
>
> Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@xxxxxxxxxxxxxxxx>
I'll update the above when applying.
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/renesas/vsp1/vsp1_dl.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/media/platform/renesas/vsp1/vsp1_dl.c b/drivers/media/platform/renesas/vsp1/vsp1_dl.c
> index 18617cbb168703b851a9b437fa62f18425934c68..3713730c6ad8739935851e4da464fc8f23da6180 100644
> --- a/drivers/media/platform/renesas/vsp1/vsp1_dl.c
> +++ b/drivers/media/platform/renesas/vsp1/vsp1_dl.c
> @@ -215,6 +215,7 @@ struct vsp1_dl_list {
> * @pending: list waiting to be queued to the hardware
> * @pool: body pool for the display list bodies
> * @cmdpool: commands pool for extended display list
> + * @list_count: number of allocated display lists
> */
> struct vsp1_dl_manager {
> unsigned int index;
> @@ -229,6 +230,8 @@ struct vsp1_dl_manager {
>
> struct vsp1_dl_body_pool *pool;
> struct vsp1_dl_cmd_pool *cmdpool;
> +
> + size_t list_count;
> };
>
> /* -----------------------------------------------------------------------------
> @@ -1078,6 +1081,7 @@ void vsp1_dlm_setup(struct vsp1_device *vsp1)
> void vsp1_dlm_reset(struct vsp1_dl_manager *dlm)
> {
> unsigned long flags;
> + size_t list_count;
>
> spin_lock_irqsave(&dlm->lock, flags);
>
> @@ -1085,8 +1089,11 @@ void vsp1_dlm_reset(struct vsp1_dl_manager *dlm)
> __vsp1_dl_list_put(dlm->queued);
> __vsp1_dl_list_put(dlm->pending);
>
> + list_count = list_count_nodes(&dlm->free);
> spin_unlock_irqrestore(&dlm->lock, flags);
>
> + WARN_ON_ONCE(list_count != dlm->list_count);
> +
> dlm->active = NULL;
> dlm->queued = NULL;
> dlm->pending = NULL;
> @@ -1155,6 +1162,7 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
>
> list_add_tail(&dl->list, &dlm->free);
> }
> + dlm->list_count = prealloc;
>
> if (vsp1_feature(vsp1, VSP1_HAS_EXT_DL)) {
> dlm->cmdpool = vsp1_dl_cmd_pool_create(vsp1,
--
Regards,
Laurent Pinchart
