In the resume stage of GPU recovery, start_cpsch will call pm_init
which set pm->allocated as false, cause the next pm_release_ib has
no chance to release ib memory.

Add pm_release_ib in stop_cpsch which will be called in the suspend
stage of GPU recovery.

Signed-off-by: Dennis Li <[email protected]>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 069ba4be1e8f..20ef048d6a03 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1192,6 +1192,8 @@ static int stop_cpsch(struct device_queue_manager *dqm)
        dqm->sched_running = false;
        dqm_unlock(dqm);
 
+       pm_release_ib(&dqm->packets);
+
        kfd_gtt_sa_free(dqm->dev, dqm->fence_mem);
        pm_uninit(&dqm->packets, hanging);
 
-- 
2.17.1

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