diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/intel_guc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/intel_guc.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/intel_guc.c b/drivers/gpu/drm/i915/selftests/intel_guc.c index 407c98fb9170..0c0ab82b6228 100644 --- a/drivers/gpu/drm/i915/selftests/intel_guc.c +++ b/drivers/gpu/drm/i915/selftests/intel_guc.c @@ -65,6 +65,40 @@ static int check_all_doorbells(struct intel_guc *guc) return 0; } +static int ring_doorbell_nop(struct intel_guc_client *client) +{ + struct guc_process_desc *desc = __get_process_desc(client); + int err; + + client->use_nop_wqi = true; + + spin_lock_irq(&client->wq_lock); + + guc_wq_item_append(client, 0, 0, 0, 0); + guc_ring_doorbell(client); + + spin_unlock_irq(&client->wq_lock); + + client->use_nop_wqi = false; + + /* if there are no issues GuC will update the WQ head and keep the + * WQ in active status + */ + err = wait_for(READ_ONCE(desc->head) == READ_ONCE(desc->tail), 10); + if (err) { + pr_err("doorbell %u ring failed!\n", client->doorbell_id); + return -EIO; + } + + if (desc->wq_status != WQ_STATUS_ACTIVE) { + pr_err("doorbell %u ring put WQ in bad state (%u)!\n", + client->doorbell_id, desc->wq_status); + return -EIO; + } + + return 0; +} + /* * Basic client sanity check, handy to validate create_clients. */ @@ -108,6 +142,7 @@ static int igt_guc_clients(void *args) GEM_BUG_ON(!HAS_GUC(dev_priv)); mutex_lock(&dev_priv->drm.struct_mutex); + intel_runtime_pm_get(dev_priv); guc = &dev_priv->guc; if (!guc) { @@ -235,6 +270,7 @@ out: guc_clients_create(guc); guc_clients_doorbell_init(guc); unlock: + intel_runtime_pm_put(dev_priv); mutex_unlock(&dev_priv->drm.struct_mutex); return err; } @@ -253,6 +289,7 @@ static int igt_guc_doorbells(void *arg) GEM_BUG_ON(!HAS_GUC(dev_priv)); mutex_lock(&dev_priv->drm.struct_mutex); + intel_runtime_pm_get(dev_priv); guc = &dev_priv->guc; if (!guc) { @@ -332,6 +369,10 @@ static int igt_guc_doorbells(void *arg) err = check_all_doorbells(guc); if (err) goto out; + + err = ring_doorbell_nop(clients[i]); + if (err) + goto out; } out: @@ -341,6 +382,7 @@ out: guc_client_free(clients[i]); } unlock: + intel_runtime_pm_put(dev_priv); mutex_unlock(&dev_priv->drm.struct_mutex); return err; } |
