*/
#include <linux/circ_buf.h>
-#include <trace/events/dma_fence.h>
+
+#include "gt/intel_engine_pm.h"
+#include "gt/intel_lrc_reg.h"
#include "intel_guc_submission.h"
-#include "intel_lrc_reg.h"
#include "i915_drv.h"
#define GUC_PREEMPT_FINISHED 0x1
static void guc_stage_desc_init(struct intel_guc_client *client)
{
struct intel_guc *guc = client->guc;
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- struct intel_engine_cs *engine;
struct i915_gem_context *ctx = client->owner;
+ struct i915_gem_engines_iter it;
struct guc_stage_desc *desc;
- unsigned int tmp;
+ struct intel_context *ce;
u32 gfx_addr;
desc = __get_stage_desc(client);
desc->priority = client->priority;
desc->db_id = client->doorbell_id;
- for_each_engine_masked(engine, dev_priv, client->engines, tmp) {
- struct intel_context *ce = intel_context_lookup(ctx, engine);
- u32 guc_engine_id = engine->guc_id;
- struct guc_execlist_context *lrc = &desc->lrc[guc_engine_id];
+ for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
+ struct guc_execlist_context *lrc;
+
+ if (!(ce->engine->mask & client->engines))
+ continue;
/* TODO: We have a design issue to be solved here. Only when we
* receive the first batch, we know which engine is used by the
* for now who owns a GuC client. But for future owner of GuC
* client, need to make sure lrc is pinned prior to enter here.
*/
- if (!ce || !ce->state)
+ if (!ce->state)
break; /* XXX: continue? */
/*
* Instead, the GuC uses the LRCA of the user mode context (see
* guc_add_request below).
*/
+ lrc = &desc->lrc[ce->engine->guc_id];
lrc->context_desc = lower_32_bits(ce->lrc_desc);
/* The state page is after PPHWSP */
* here. In proxy submission, it wants the stage id
*/
lrc->context_id = (client->stage_id << GUC_ELC_CTXID_OFFSET) |
- (guc_engine_id << GUC_ELC_ENGINE_OFFSET);
+ (ce->engine->guc_id << GUC_ELC_ENGINE_OFFSET);
lrc->ring_begin = intel_guc_ggtt_offset(guc, ce->ring->vma);
lrc->ring_end = lrc->ring_begin + ce->ring->size - 1;
lrc->ring_next_free_location = lrc->ring_begin;
lrc->ring_current_tail_pointer_value = 0;
- desc->engines_used |= (1 << guc_engine_id);
+ desc->engines_used |= BIT(ce->engine->guc_id);
}
+ i915_gem_context_unlock_engines(ctx);
DRM_DEBUG_DRIVER("Host engines 0x%x => GuC engines used 0x%x\n",
client->engines, desc->engines_used);
preempt_work[engine->id]);
struct intel_guc_client *client = guc->preempt_client;
struct guc_stage_desc *stage_desc = __get_stage_desc(client);
- struct intel_context *ce = intel_context_lookup(client->owner, engine);
+ struct intel_context *ce = engine->preempt_context;
u32 data[7];
if (!ce->ring->emit) { /* recreate upon load/resume */
struct guc_ctx_report *report =
&data->preempt_ctx_report[engine->guc_id];
- WARN_ON(wait_for_atomic(report->report_return_status ==
- INTEL_GUC_REPORT_STATUS_COMPLETE,
- GUC_PREEMPT_POSTPROCESS_DELAY_MS));
+ if (wait_for_atomic(report->report_return_status ==
+ INTEL_GUC_REPORT_STATUS_COMPLETE,
+ GUC_PREEMPT_POSTPROCESS_DELAY_MS))
+ DRM_ERROR("Timed out waiting for GuC preemption report\n");
/*
* GuC is expecting that we're also going to clear the affected context
* counter, let's also reset the return status to not depend on GuC
&engine->i915->guc.preempt_work[engine->id];
int prio = execlists->queue_priority_hint;
- if (__execlists_need_preempt(prio, port_prio(port))) {
+ if (i915_scheduler_need_preempt(prio,
+ port_prio(port))) {
execlists_set_active(execlists,
EXECLISTS_ACTIVE_PREEMPT);
queue_work(engine->i915->guc.preempt_wq,
flush_workqueue(engine->i915->guc.preempt_wq);
}
+static void guc_reset(struct intel_engine_cs *engine, bool stalled)
+{
+ struct intel_engine_execlists * const execlists = &engine->execlists;
+ struct i915_request *rq;
+ unsigned long flags;
+
+ spin_lock_irqsave(&engine->timeline.lock, flags);
+
+ execlists_cancel_port_requests(execlists);
+
+ /* Push back any incomplete requests for replay after the reset. */
+ rq = execlists_unwind_incomplete_requests(execlists);
+ if (!rq)
+ goto out_unlock;
+
+ if (!i915_request_started(rq))
+ stalled = false;
+
+ i915_reset_request(rq, stalled);
+ intel_lr_context_reset(engine, rq->hw_context, rq->head, stalled);
+
+out_unlock:
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
+}
+
+static void guc_cancel_requests(struct intel_engine_cs *engine)
+{
+ struct intel_engine_execlists * const execlists = &engine->execlists;
+ struct i915_request *rq, *rn;
+ struct rb_node *rb;
+ unsigned long flags;
+
+ GEM_TRACE("%s\n", engine->name);
+
+ /*
+ * Before we call engine->cancel_requests(), we should have exclusive
+ * access to the submission state. This is arranged for us by the
+ * caller disabling the interrupt generation, the tasklet and other
+ * threads that may then access the same state, giving us a free hand
+ * to reset state. However, we still need to let lockdep be aware that
+ * we know this state may be accessed in hardirq context, so we
+ * disable the irq around this manipulation and we want to keep
+ * the spinlock focused on its duties and not accidentally conflate
+ * coverage to the submission's irq state. (Similarly, although we
+ * shouldn't need to disable irq around the manipulation of the
+ * submission's irq state, we also wish to remind ourselves that
+ * it is irq state.)
+ */
+ spin_lock_irqsave(&engine->timeline.lock, flags);
+
+ /* Cancel the requests on the HW and clear the ELSP tracker. */
+ execlists_cancel_port_requests(execlists);
+
+ /* Mark all executing requests as skipped. */
+ list_for_each_entry(rq, &engine->timeline.requests, link) {
+ if (!i915_request_signaled(rq))
+ dma_fence_set_error(&rq->fence, -EIO);
+
+ i915_request_mark_complete(rq);
+ }
+
+ /* Flush the queued requests to the timeline list (for retiring). */
+ while ((rb = rb_first_cached(&execlists->queue))) {
+ struct i915_priolist *p = to_priolist(rb);
+ int i;
+
+ priolist_for_each_request_consume(rq, rn, p, i) {
+ list_del_init(&rq->sched.link);
+ __i915_request_submit(rq);
+ dma_fence_set_error(&rq->fence, -EIO);
+ i915_request_mark_complete(rq);
+ }
+
+ rb_erase_cached(&p->node, &execlists->queue);
+ i915_priolist_free(p);
+ }
+
+ /* Remaining _unready_ requests will be nop'ed when submitted */
+
+ execlists->queue_priority_hint = INT_MIN;
+ execlists->queue = RB_ROOT_CACHED;
+ GEM_BUG_ON(port_isset(execlists->port));
+
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
+}
+
+static void guc_reset_finish(struct intel_engine_cs *engine)
+{
+ struct intel_engine_execlists * const execlists = &engine->execlists;
+
+ if (__tasklet_enable(&execlists->tasklet))
+ /* And kick in case we missed a new request submission. */
+ tasklet_hi_schedule(&execlists->tasklet);
+
+ GEM_TRACE("%s: depth->%d\n", engine->name,
+ atomic_read(&execlists->tasklet.count));
+}
+
/*
* Everything below here is concerned with setup & teardown, and is
* therefore not part of the somewhat time-critical batch-submission
static void guc_submission_park(struct intel_engine_cs *engine)
{
+ intel_engine_park(engine);
intel_engine_unpin_breadcrumbs_irq(engine);
+ engine->flags &= ~I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
}
static void guc_submission_unpark(struct intel_engine_cs *engine)
{
+ engine->flags |= I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
intel_engine_pin_breadcrumbs_irq(engine);
}
engine->unpark = guc_submission_unpark;
engine->reset.prepare = guc_reset_prepare;
+ engine->reset.reset = guc_reset;
+ engine->reset.finish = guc_reset_finish;
+
+ engine->cancel_requests = guc_cancel_requests;
engine->flags &= ~I915_ENGINE_SUPPORTS_STATS;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff