diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 61 |
1 files changed, 26 insertions, 35 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index be2cba6b36d1..94a89eff4dbd 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1308,9 +1308,6 @@ static u8 gtiir[] = { static int gen8_init_common_ring(struct intel_engine_cs *engine) { struct drm_i915_private *dev_priv = engine->i915; - struct execlist_port *port = engine->execlist_port; - unsigned int n; - bool submit; int ret; ret = intel_mocs_init_engine(engine); @@ -1346,26 +1343,8 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine) engine->csb_head = -1; /* After a GPU reset, we may have requests to replay */ - submit = false; - for (n = 0; n < ARRAY_SIZE(engine->execlist_port); n++) { - if (!port_isset(&port[n])) - break; - - DRM_DEBUG_DRIVER("Restarting %s:%d from 0x%x\n", - engine->name, n, - port_request(&port[n])->global_seqno); - - /* Discard the current inflight count */ - port_set(&port[n], port_request(&port[n])); - submit = true; - } - - if (!i915.enable_guc_submission) { - if (submit) - execlists_submit_ports(engine); - else if (engine->execlist_first) - tasklet_schedule(&engine->irq_tasklet); - } + if (!i915.enable_guc_submission && engine->execlist_first) + tasklet_schedule(&engine->irq_tasklet); return 0; } @@ -1407,9 +1386,13 @@ static void reset_common_ring(struct intel_engine_cs *engine, struct drm_i915_gem_request *request) { struct execlist_port *port = engine->execlist_port; + struct drm_i915_gem_request *rq, *rn; struct intel_context *ce; + unsigned long flags; unsigned int n; + spin_lock_irqsave(&engine->timeline->lock, flags); + /* * Catch up with any missed context-switch interrupts. * @@ -1419,20 +1402,28 @@ static void reset_common_ring(struct intel_engine_cs *engine, * guessing the missed context-switch events by looking at what * requests were completed. */ - if (!request) { - for (n = 0; n < ARRAY_SIZE(engine->execlist_port); n++) - i915_gem_request_put(port_request(&port[n])); - memset(engine->execlist_port, 0, sizeof(engine->execlist_port)); - return; - } + for (n = 0; n < ARRAY_SIZE(engine->execlist_port); n++) + i915_gem_request_put(port_request(&port[n])); + memset(engine->execlist_port, 0, sizeof(engine->execlist_port)); - if (request->ctx != port_request(port)->ctx) { - i915_gem_request_put(port_request(port)); - port[0] = port[1]; - memset(&port[1], 0, sizeof(port[1])); + /* Push back any incomplete requests for replay after the reset. */ + list_for_each_entry_safe_reverse(rq, rn, + &engine->timeline->requests, link) { + struct i915_priolist *p; + + if (i915_gem_request_completed(rq)) + break; + + __i915_gem_request_unsubmit(rq); + + p = lookup_priolist(engine, + &rq->priotree, + rq->priotree.priority); + list_add(&rq->priotree.link, + &ptr_mask_bits(p, 1)->requests); } - GEM_BUG_ON(request->ctx != port_request(port)->ctx); + spin_unlock_irqrestore(&engine->timeline->lock, flags); /* If the request was innocent, we leave the request in the ELSP * and will try to replay it on restarting. The context image may @@ -1444,7 +1435,7 @@ static void reset_common_ring(struct intel_engine_cs *engine, * and have to at least restore the RING register in the context * image back to the expected values to skip over the guilty request. */ - if (request->fence.error != -EIO) + if (!request || request->fence.error != -EIO) return; /* We want a simple context + ring to execute the breadcrumb update. |