}
static inline bool __dma_fence_is_chain(const struct dma_fence *fence)
@@ -114,8 +104,7 @@ static inline bool __dma_fence_is_chain(const struct dma_fence *fence)
return fence->ops == &dma_fence_chain_ops;
}
-void i915_gem_fence_wait_priority(struct dma_fence *fence,
- const struct i915_sched_attr *attr)
+void i915_gem_fence_wait_priority(struct dma_fence *fence, int prio)
{
if (dma_fence_is_signaled(fence))
return;
@@ -128,19 +117,19 @@ void i915_gem_fence_wait_priority(struct dma_fence *fence,
int i;
for (i = 0; i < array->num_fences; i++)
- fence_set_priority(array->fences[i], attr);
+ fence_set_priority(array->fences[i], prio);
} else if (__dma_fence_is_chain(fence)) {
struct dma_fence *iter;
/* The chain is ordered; if we boost the last, we boost all */
dma_fence_chain_for_each(iter, fence) {
fence_set_priority(to_dma_fence_chain(iter)->fence,
- attr);
+ prio);
break;
}
dma_fence_put(iter);
} else {
- fence_set_priority(fence, attr);
+ fence_set_priority(fence, prio);
}
local_bh_enable(); /* kick the tasklets if queues were reprioritised */
@@ -149,7 +138,7 @@ void i915_gem_fence_wait_priority(struct dma_fence *fence,
int
i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
unsigned int flags,
- const struct i915_sched_attr *attr)
+ int prio)
{
struct dma_fence *excl;
@@ -164,7 +153,7 @@ i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
return ret;
for (i = 0; i < count; i++) {
- i915_gem_fence_wait_priority(shared[i], attr);
+ i915_gem_fence_wait_priority(shared[i], prio);
dma_fence_put(shared[i]);
}
@@ -174,7 +163,7 @@ i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
}
if (excl) {
- i915_gem_fence_wait_priority(excl, attr);
+ i915_gem_fence_wait_priority(excl, prio);
dma_fence_put(excl);
}
return 0;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index ac9e020dbc9e..7e580d3ac58f 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -319,9 +319,6 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id)
if (engine->context_size)
DRIVER_CAPS(i915)->has_logical_contexts = true;
- /* Nothing to do here, execute in order of dependencies */
- engine->schedule = NULL;
-
ewma__engine_latency_init(&engine->latency);
seqcount_init(&engine->stats.lock);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
index 778bcae5ef2c..0b026cde9f09 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
@@ -114,7 +114,7 @@ static void heartbeat(struct work_struct *wrk)
* but all other contexts, including the kernel
* context are stuck waiting for the signal.
*/
- } else if (engine->schedule &&
+ } else if (intel_engine_has_scheduler(engine) &&
rq->sched.attr.priority < I915_PRIORITY_BARRIER) {
/*
* Gradually raise the priority of the heartbeat to
@@ -129,7 +129,7 @@ static void heartbeat(struct work_struct *wrk)
attr.priority = I915_PRIORITY_BARRIER;
local_bh_disable();
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, attr.priority);
local_bh_enable();
} else {
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM))
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 883bafc44902..27cb3dc0233b 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -453,14 +453,6 @@ struct intel_engine_cs {
void (*bond_execute)(struct i915_request *rq,
struct dma_fence *signal);
- /*
- * Call when the priority on a request has changed and it and its
- * dependencies may need rescheduling. Note the request itself may
- * not be ready to run!
- */
- void (*schedule)(struct i915_request *request,
- const struct i915_sched_attr *attr);
-
void (*release)(struct intel_engine_cs *engine);
struct intel_engine_execlists execlists;
@@ -478,13 +470,14 @@ struct intel_engine_cs {
#define I915_ENGINE_USING_CMD_PARSER BIT(0)
#define I915_ENGINE_SUPPORTS_STATS BIT(1)
-#define I915_ENGINE_HAS_PREEMPTION BIT(2)
-#define I915_ENGINE_HAS_SEMAPHORES BIT(3)
-#define I915_ENGINE_HAS_TIMESLICES BIT(4)
-#define I915_ENGINE_NEEDS_BREADCRUMB_TASKLET BIT(5)
-#define I915_ENGINE_IS_VIRTUAL BIT(6)
-#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(7)
-#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(8)
+#define I915_ENGINE_HAS_SCHEDULER BIT(2)
+#define I915_ENGINE_HAS_PREEMPTION BIT(3)
+#define I915_ENGINE_HAS_SEMAPHORES BIT(4)
+#define I915_ENGINE_HAS_TIMESLICES BIT(5)
+#define I915_ENGINE_NEEDS_BREADCRUMB_TASKLET BIT(6)
+#define I915_ENGINE_IS_VIRTUAL BIT(7)
+#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(8)
+#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(9)
unsigned int flags;
/*
@@ -572,6 +565,12 @@ intel_engine_supports_stats(const struct intel_engine_cs *engine)
return engine->flags & I915_ENGINE_SUPPORTS_STATS;
}
+static inline bool
+intel_engine_has_scheduler(const struct intel_engine_cs *engine)
+{
+ return engine->flags & I915_ENGINE_HAS_SCHEDULER;
+}
+
static inline bool
intel_engine_has_preemption(const struct intel_engine_cs *engine)
{
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c
index 1cbd84eb24e4..64eccdf32a22 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_user.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c
@@ -107,7 +107,7 @@ static void set_scheduler_caps(struct drm_i915_private *i915)
for_each_uabi_engine(engine, i915) { /* all engines must agree! */
int i;
- if (engine->schedule)
+ if (intel_engine_has_scheduler(engine))
enabled |= (I915_SCHEDULER_CAP_ENABLED |
I915_SCHEDULER_CAP_PRIORITY);
else
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index 56e36d938851..309fb421ff5c 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -3073,7 +3073,6 @@ static bool can_preempt(struct intel_engine_cs *engine)
static void execlists_set_default_submission(struct intel_engine_cs *engine)
{
engine->submit_request = execlists_submit_request;
- engine->schedule = i915_schedule;
engine->execlists.tasklet.func = execlists_submission_tasklet;
engine->reset.prepare = execlists_reset_prepare;
@@ -3084,6 +3083,7 @@ static void execlists_set_default_submission(struct intel_engine_cs *engine)
engine->park = execlists_park;
engine->unpark = NULL;
+ engine->flags |= I915_ENGINE_HAS_SCHEDULER;
engine->flags |= I915_ENGINE_SUPPORTS_STATS;
if (!intel_vgpu_active(engine->i915)) {
engine->flags |= I915_ENGINE_HAS_SEMAPHORES;
@@ -3646,7 +3646,6 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings,
ve->base.cops = &virtual_context_ops;
ve->base.request_alloc = execlists_request_alloc;
- ve->base.schedule = i915_schedule;
ve->base.submit_request = virtual_submit_request;
ve->base.bond_execute = virtual_bond_execute;
diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c
index 6cfa9a89d891..acb7c089d05b 100644
--- a/drivers/gpu/drm/i915/gt/selftest_execlists.c
+++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c
@@ -268,12 +268,8 @@ static int live_unlite_restore(struct intel_gt *gt, int prio)
i915_request_put(rq[0]);
if (prio) {
- struct i915_sched_attr attr = {
- .priority = prio,
- };
-
/* Alternatively preempt the spinner with ce[1] */
- engine->schedule(rq[1], &attr);
+ i915_request_set_priority(rq[1], prio);
}
/* And switch back to ce[0] for good measure */
@@ -873,9 +869,6 @@ release_queue(struct intel_engine_cs *engine,
struct i915_vma *vma,
int idx, int prio)
{
- struct i915_sched_attr attr = {
- .priority = prio,
- };
struct i915_request *rq;
u32 *cs;
@@ -900,7 +893,7 @@ release_queue(struct intel_engine_cs *engine,
i915_request_add(rq);
local_bh_disable();
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, prio);
local_bh_enable(); /* kick tasklet */
i915_request_put(rq);
@@ -1310,7 +1303,6 @@ static int live_timeslice_queue(void *arg)
goto err_pin;
for_each_engine(engine, gt, id) {
- struct i915_sched_attr attr = { .priority = I915_PRIORITY_MAX };
struct i915_request *rq, *nop;
if (!intel_engine_has_preemption(engine))
@@ -1325,7 +1317,7 @@ static int live_timeslice_queue(void *arg)
err = PTR_ERR(rq);
goto err_heartbeat;
}
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, I915_PRIORITY_MAX);
err = wait_for_submit(engine, rq, HZ / 2);
if (err) {
pr_err("%s: Timed out trying to submit semaphores\n",
@@ -1806,7 +1798,6 @@ static int live_late_preempt(void *arg)
struct i915_gem_context *ctx_hi, *ctx_lo;
struct igt_spinner spin_hi, spin_lo;
struct intel_engine_cs *engine;
- struct i915_sched_attr attr = {};
enum intel_engine_id id;
int err = -ENOMEM;
@@ -1866,8 +1857,7 @@ static int live_late_preempt(void *arg)
goto err_wedged;
}
- attr.priority = I915_PRIORITY_MAX;
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, I915_PRIORITY_MAX);
if (!igt_wait_for_spinner(&spin_hi, rq)) {
pr_err("High priority context failed to preempt the low priority context\n");
@@ -2412,7 +2402,6 @@ static int live_preempt_cancel(void *arg)
static int live_suppress_self_preempt(void *arg)
{
- struct i915_sched_attr attr = { .priority = I915_PRIORITY_MAX };
struct intel_gt *gt = arg;
struct intel_engine_cs *engine;
struct preempt_client a, b;
@@ -2480,7 +2469,7 @@ static int live_suppress_self_preempt(void *arg)
i915_request_add(rq_b);
GEM_BUG_ON(i915_request_completed(rq_a));
- engine->schedule(rq_a, &attr);
+ i915_request_set_priority(rq_a, I915_PRIORITY_MAX);
igt_spinner_end(&a.spin);
if (!igt_wait_for_spinner(&b.spin, rq_b)) {
@@ -2545,7 +2534,6 @@ static int live_chain_preempt(void *arg)
goto err_client_hi;
for_each_engine(engine, gt, id) {
- struct i915_sched_attr attr = { .priority = I915_PRIORITY_MAX };
struct igt_live_test t;
struct i915_request *rq;
int ring_size, count, i;
@@ -2612,7 +2600,7 @@ static int live_chain_preempt(void *arg)
i915_request_get(rq);
i915_request_add(rq);
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, I915_PRIORITY_MAX);
igt_spinner_end(&hi.spin);
if (i915_request_wait(rq, 0, HZ / 5) < 0) {
@@ -2964,14 +2952,12 @@ static int live_preempt_gang(void *arg)
return -EIO;
do {
- struct i915_sched_attr attr = { .priority = prio++ };
-
err = create_gang(engine, &rq);
if (err)
break;
/* Submit each spinner at increasing priority */
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, prio++);
} while (prio <= I915_PRIORITY_MAX &&
!__igt_timeout(end_time, NULL));
pr_debug("%s: Preempt chain of %d requests\n",
@@ -3192,9 +3178,6 @@ static int preempt_user(struct intel_engine_cs *engine,
struct i915_vma *global,
int id)
{
- struct i915_sched_attr attr = {
- .priority = I915_PRIORITY_MAX
- };
struct i915_request *rq;
int err = 0;
u32 *cs;
@@ -3219,7 +3202,7 @@ static int preempt_user(struct intel_engine_cs *engine,
i915_request_get(rq);
i915_request_add(rq);
- engine->schedule(rq, &attr);
+ i915_request_set_priority(rq, I915_PRIORITY_MAX);
if (i915_request_wait(rq, 0, HZ / 2) < 0)
err = -ETIME;
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index d6ce4075602c..8cad102922e7 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -858,12 +858,11 @@ static int active_engine(void *data)
rq[idx] = i915_request_get(new);
i915_request_add(new);
- if (engine->schedule && arg->flags & TEST_PRIORITY) {
- struct i915_sched_attr attr = {
- .priority =
- i915_prandom_u32_max_state(512, &prng),
- };
- engine->schedule(rq[idx], &attr);
+ if (intel_engine_has_scheduler(engine) &&
+ arg->flags & TEST_PRIORITY) {
+ int prio = i915_prandom_u32_max_state(512, &prng);
+
+ i915_request_set_priority(rq[idx], prio);
}
err = active_request_put(old);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 3124d8794d87..53cf68e240c3 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -607,7 +607,6 @@ static int guc_resume(struct intel_engine_cs *engine)
static void guc_set_default_submission(struct intel_engine_cs *engine)
{
engine->submit_request = guc_submit_request;
- engine->schedule = i915_schedule;
engine->execlists.tasklet.func = guc_submission_tasklet;
engine->reset.prepare = guc_reset_prepare;
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 22e39d938f17..abda565dfe62 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1218,7 +1218,7 @@ __i915_request_await_execution(struct i915_request *to,
}
/* Couple the dependency tree for PI on this exposed to->fence */
- if (to->engine->schedule) {
+ if (intel_engine_has_scheduler(to->engine)) {
err = i915_sched_node_add_dependency(&to->sched,
&from->sched,
I915_DEPENDENCY_WEAK);
@@ -1359,7 +1359,7 @@ i915_request_await_request(struct i915_request *to, struct i915_request *from)
return 0;
}
- if (to->engine->schedule) {
+ if (intel_engine_has_scheduler(to->engine)) {
ret = i915_sched_node_add_dependency(&to->sched,
&from->sched,
I915_DEPENDENCY_EXTERNAL);
@@ -1546,7 +1546,7 @@ __i915_request_add_to_timeline(struct i915_request *rq)
__i915_sw_fence_await_dma_fence(&rq->submit,
&prev->fence,
&rq->dmaq);
- if (rq->engine->schedule)
+ if (intel_engine_has_scheduler(rq->engine))
__i915_sched_node_add_dependency(&rq->sched,
&prev->sched,
&rq->dep,
@@ -1618,8 +1618,8 @@ void __i915_request_queue(struct i915_request *rq,
* decide whether to preempt the entire chain so that it is ready to
* run at the earliest possible convenience.
*/
- if (attr && rq->engine->schedule)
- rq->engine->schedule(rq, attr);
+ if (attr)
+ i915_request_set_priority(rq, attr->priority);
local_bh_disable();
__i915_request_queue_bh(rq);
diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c
index efa638c3acc7..dbdd4128f13d 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.c
+++ b/drivers/gpu/drm/i915/i915_scheduler.c
@@ -216,10 +216,8 @@ static void kick_submission(struct intel_engine_cs *engine,
rcu_read_unlock();
}
-static void __i915_schedule(struct i915_sched_node *node,
- const struct i915_sched_attr *attr)
+static void __i915_schedule(struct i915_sched_node *node, int prio)
{
- const int prio = max(attr->priority, node->attr.priority);
struct intel_engine_cs *engine;
struct i915_dependency *dep, *p;
struct i915_dependency stack;
@@ -233,6 +231,8 @@ static void __i915_schedule(struct i915_sched_node *node,
if (node_signaled(node))
return;
+ prio = max(prio, node->attr.priority);
+
stack.signaler = node;
list_add(&stack.dfs_link, &dfs);
@@ -286,7 +286,7 @@ static void __i915_schedule(struct i915_sched_node *node,
*/
if (node->attr.priority == I915_PRIORITY_INVALID) {
GEM_BUG_ON(!list_empty(&node->link));
- node->attr = *attr;
+ node->attr.priority = prio;
if (stack.dfs_link.next == stack.dfs_link.prev)
return;
@@ -341,10 +341,13 @@ static void __i915_schedule(struct i915_sched_node *node,
spin_unlock(&engine->active.lock);
}
-void i915_schedule(struct i915_request *rq, const struct i915_sched_attr *attr)
+void i915_request_set_priority(struct i915_request *rq, int prio)
{
+ if (!intel_engine_has_scheduler(rq->engine))
+ return;
+
spin_lock_irq(&schedule_lock);
- __i915_schedule(&rq->sched, attr);
+ __i915_schedule(&rq->sched, prio);
spin_unlock_irq(&schedule_lock);
}
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index 858a0938f47a..ccee506c9a26 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -35,8 +35,7 @@ int i915_sched_node_add_dependency(struct i915_sched_node *node,
void i915_sched_node_fini(struct i915_sched_node *node);
-void i915_schedule(struct i915_request *request,
- const struct i915_sched_attr *attr);
+void i915_request_set_priority(struct i915_request *request, int prio);
struct list_head *
i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio);
