From: Jakub Pawlak <[email protected]> Use separate flag to mark a job timeout as a reason of starting context_abort_work. This allows to distinguish engine reset reason and clearly adjust reset procedure flow.
The flag is cleared in ivpu_prepare_for_reset(), which every recovery and suspend path already funnels through, so that the state is clean after recovery. Cc: <[email protected]> # v7.1+ Fixes: ade00a6c903f ("accel/ivpu: Perform engine reset instead of device recovery on TDR") Signed-off-by: Jakub Pawlak <[email protected]> Signed-off-by: Karol Wachowski <[email protected]> --- Changes in v2: - add Cc: tag - link to v1: https://lore.kernel.org/dri-devel/[email protected]/T/#u --- drivers/accel/ivpu/ivpu_drv.c | 3 ++- drivers/accel/ivpu/ivpu_drv.h | 2 +- drivers/accel/ivpu/ivpu_job.c | 7 +++---- drivers/accel/ivpu/ivpu_mmu.c | 1 - drivers/accel/ivpu/ivpu_pm.c | 1 + 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 4c73dc8b3aaf..d7faabe0f676 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -539,6 +539,7 @@ void ivpu_prepare_for_reset(struct ivpu_device *vdev) { ivpu_hw_irq_disable(vdev); disable_irq(vdev->irq); + atomic_set(&vdev->job_timeout_detected, 0); flush_work(&vdev->irq_dct_work); flush_work(&vdev->context_abort_work); flush_work(&vdev->job_destroy_work); @@ -734,7 +735,7 @@ static int ivpu_dev_init(struct ivpu_device *vdev) vdev->context_xa_limit.max = IVPU_USER_CONTEXT_MAX_SSID; atomic64_set(&vdev->unique_id_counter, 0); atomic_set(&vdev->job_timeout_counter, 0); - atomic_set(&vdev->faults_detected, 0); + atomic_set(&vdev->job_timeout_detected, 0); xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC | XA_FLAGS_LOCK_IRQ); xa_init_flags(&vdev->submitted_jobs_xa, XA_FLAGS_ALLOC1); xa_init_flags(&vdev->db_xa, XA_FLAGS_ALLOC1); diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h index 3b26a64ed04f..8762b8969d96 100644 --- a/drivers/accel/ivpu/ivpu_drv.h +++ b/drivers/accel/ivpu/ivpu_drv.h @@ -171,7 +171,7 @@ struct ivpu_device { struct xarray submitted_jobs_xa; struct ivpu_ipc_consumer job_done_consumer; atomic_t job_timeout_counter; - atomic_t faults_detected; + atomic_t job_timeout_detected; atomic64_t unique_id_counter; diff --git a/drivers/accel/ivpu/ivpu_job.c b/drivers/accel/ivpu/ivpu_job.c index 51d573ac4da8..245512bab523 100644 --- a/drivers/accel/ivpu/ivpu_job.c +++ b/drivers/accel/ivpu/ivpu_job.c @@ -626,7 +626,6 @@ bool ivpu_job_handle_engine_error(struct ivpu_device *vdev, u32 job_id, u32 job_ * status and ensure both are handled in the same way */ job->file_priv->has_mmu_faults = true; - atomic_set(&vdev->faults_detected, 1); queue_work(system_percpu_wq, &vdev->context_abort_work); return true; } @@ -1271,10 +1270,10 @@ static int reset_engine_and_mark_faulty_contexts(struct ivpu_device *vdev) return ret; /* - * If faults are detected, ignore guilty contexts from engine reset as NPU may not be stuck - * and could return currently running good context and faulty contexts are already marked + * If job timeout is detected, read guilty context from engine reset, for other reasons + * faulty context is already known */ - if (atomic_cmpxchg(&vdev->faults_detected, 1, 0) == 1) + if (atomic_cmpxchg(&vdev->job_timeout_detected, 1, 0) == 0) return 0; num_impacted_contexts = resp.payload.engine_reset_done.num_impacted_contexts; diff --git a/drivers/accel/ivpu/ivpu_mmu.c b/drivers/accel/ivpu/ivpu_mmu.c index 1908375ff128..c846499d96ce 100644 --- a/drivers/accel/ivpu/ivpu_mmu.c +++ b/drivers/accel/ivpu/ivpu_mmu.c @@ -960,7 +960,6 @@ void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev) file_priv = xa_load(&vdev->context_xa, ssid); if (file_priv) { if (!READ_ONCE(file_priv->has_mmu_faults)) { - atomic_set(&vdev->faults_detected, 1); ivpu_mmu_dump_event(vdev, event); WRITE_ONCE(file_priv->has_mmu_faults, true); } diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c index c1ce8329790e..de0becbfdffb 100644 --- a/drivers/accel/ivpu/ivpu_pm.c +++ b/drivers/accel/ivpu/ivpu_pm.c @@ -229,6 +229,7 @@ static void ivpu_job_timeout_work(struct work_struct *work) ivpu_jsm_state_dump(vdev); ivpu_dev_coredump(vdev); + atomic_set(&vdev->job_timeout_detected, 1); queue_work(system_percpu_wq, &vdev->context_abort_work); } -- 2.43.0
