[PATCH v4 04/12] drm/panthor: Don't allocate protm_suspend_buf

[Ketil Johnsen <ketil.johnsen@arm.com>]

The PROTM suspend buffer is only needed if the group is going to
use PROTM in the first place, so let's not assume we need one until
we're being asked to.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Ketil Johnsen <ketil.johnsen@arm.com>
---
 drivers/gpu/drm/panthor/panthor_sched.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/panthor/panthor_sched.c
index 3bd6be9407097..db801705f0d27 100644
--- a/drivers/gpu/drm/panthor/panthor_sched.c
+++ b/drivers/gpu/drm/panthor/panthor_sched.c
@@ -3641,9 +3641,11 @@ static void add_group_kbo_sizes(struct panthor_device *ptdev,
 	if (drm_WARN_ON(&ptdev->base, ptdev != group->ptdev))
 		return;
 
-	group->fdinfo.kbo_sizes += group->suspend_buf->obj->size;
-	group->fdinfo.kbo_sizes += group->protm_suspend_buf->obj->size;
 	group->fdinfo.kbo_sizes += group->syncobjs->obj->size;
+	group->fdinfo.kbo_sizes += group->suspend_buf->obj->size;
+
+	if (group->protm_suspend_buf)
+		group->fdinfo.kbo_sizes += group->protm_suspend_buf->obj->size;
 
 	for (i = 0; i < group->queue_count; i++) {
 		queue =	group->queues[i];
@@ -3724,14 +3726,6 @@ int panthor_group_create(struct drm_file *file,
 		goto err_put_group;
 	}
 
-	suspend_size = csg_iface->control->protm_suspend_size;
-	group->protm_suspend_buf = panthor_fw_alloc_suspend_buf_mem(ptdev, suspend_size);
-	if (IS_ERR(group->protm_suspend_buf)) {
-		ret = PTR_ERR(group->protm_suspend_buf);
-		group->protm_suspend_buf = NULL;
-		goto err_put_group;
-	}
-
 	group->syncobjs = panthor_kernel_bo_create(ptdev, group->vm,
 						   group_args->queues.count *
 						   sizeof(struct panthor_syncobj_64b),
-- 
2.43.0