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|
/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2018 Intel Corporation
*/
#include <linux/prime_numbers.h>
#include "../i915_reset.h"
#include "../i915_selftest.h"
#include "igt_flush_test.h"
#include "igt_spinner.h"
#include "i915_random.h"
#include "mock_context.h"
static int live_sanitycheck(void *arg)
{
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
struct i915_gem_context *ctx;
enum intel_engine_id id;
struct igt_spinner spin;
intel_wakeref_t wakeref;
int err = -ENOMEM;
if (!HAS_LOGICAL_RING_CONTEXTS(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (igt_spinner_init(&spin, i915))
goto err_unlock;
ctx = kernel_context(i915);
if (!ctx)
goto err_spin;
for_each_engine(engine, i915, id) {
struct i915_request *rq;
rq = igt_spinner_create_request(&spin, ctx, engine, MI_NOOP);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto err_ctx;
}
i915_request_add(rq);
if (!igt_wait_for_spinner(&spin, rq)) {
GEM_TRACE("spinner failed to start\n");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx;
}
igt_spinner_end(&spin);
if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
err = -EIO;
goto err_ctx;
}
}
err = 0;
err_ctx:
kernel_context_close(ctx);
err_spin:
igt_spinner_fini(&spin);
err_unlock:
igt_flush_test(i915, I915_WAIT_LOCKED);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
}
static int live_preempt(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_gem_context *ctx_hi, *ctx_lo;
struct igt_spinner spin_hi, spin_lo;
struct intel_engine_cs *engine;
enum intel_engine_id id;
intel_wakeref_t wakeref;
int err = -ENOMEM;
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (igt_spinner_init(&spin_hi, i915))
goto err_unlock;
if (igt_spinner_init(&spin_lo, i915))
goto err_spin_hi;
ctx_hi = kernel_context(i915);
if (!ctx_hi)
goto err_spin_lo;
ctx_hi->sched.priority =
I915_USER_PRIORITY(I915_CONTEXT_MAX_USER_PRIORITY);
ctx_lo = kernel_context(i915);
if (!ctx_lo)
goto err_ctx_hi;
ctx_lo->sched.priority =
I915_USER_PRIORITY(I915_CONTEXT_MIN_USER_PRIORITY);
for_each_engine(engine, i915, id) {
struct i915_request *rq;
rq = igt_spinner_create_request(&spin_lo, ctx_lo, engine,
MI_ARB_CHECK);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto err_ctx_lo;
}
i915_request_add(rq);
if (!igt_wait_for_spinner(&spin_lo, rq)) {
GEM_TRACE("lo spinner failed to start\n");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
rq = igt_spinner_create_request(&spin_hi, ctx_hi, engine,
MI_ARB_CHECK);
if (IS_ERR(rq)) {
igt_spinner_end(&spin_lo);
err = PTR_ERR(rq);
goto err_ctx_lo;
}
i915_request_add(rq);
if (!igt_wait_for_spinner(&spin_hi, rq)) {
GEM_TRACE("hi spinner failed to start\n");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
igt_spinner_end(&spin_hi);
igt_spinner_end(&spin_lo);
if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
err = -EIO;
goto err_ctx_lo;
}
}
err = 0;
err_ctx_lo:
kernel_context_close(ctx_lo);
err_ctx_hi:
kernel_context_close(ctx_hi);
err_spin_lo:
igt_spinner_fini(&spin_lo);
err_spin_hi:
igt_spinner_fini(&spin_hi);
err_unlock:
igt_flush_test(i915, I915_WAIT_LOCKED);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
}
static int live_late_preempt(void *arg)
{
struct drm_i915_private *i915 = 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;
intel_wakeref_t wakeref;
int err = -ENOMEM;
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (igt_spinner_init(&spin_hi, i915))
goto err_unlock;
if (igt_spinner_init(&spin_lo, i915))
goto err_spin_hi;
ctx_hi = kernel_context(i915);
if (!ctx_hi)
goto err_spin_lo;
ctx_lo = kernel_context(i915);
if (!ctx_lo)
goto err_ctx_hi;
for_each_engine(engine, i915, id) {
struct i915_request *rq;
rq = igt_spinner_create_request(&spin_lo, ctx_lo, engine,
MI_ARB_CHECK);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto err_ctx_lo;
}
i915_request_add(rq);
if (!igt_wait_for_spinner(&spin_lo, rq)) {
pr_err("First context failed to start\n");
goto err_wedged;
}
rq = igt_spinner_create_request(&spin_hi, ctx_hi, engine,
MI_NOOP);
if (IS_ERR(rq)) {
igt_spinner_end(&spin_lo);
err = PTR_ERR(rq);
goto err_ctx_lo;
}
i915_request_add(rq);
if (igt_wait_for_spinner(&spin_hi, rq)) {
pr_err("Second context overtook first?\n");
goto err_wedged;
}
attr.priority = I915_USER_PRIORITY(I915_PRIORITY_MAX);
engine->schedule(rq, &attr);
if (!igt_wait_for_spinner(&spin_hi, rq)) {
pr_err("High priority context failed to preempt the low priority context\n");
GEM_TRACE_DUMP();
goto err_wedged;
}
igt_spinner_end(&spin_hi);
igt_spinner_end(&spin_lo);
if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
err = -EIO;
goto err_ctx_lo;
}
}
err = 0;
err_ctx_lo:
kernel_context_close(ctx_lo);
err_ctx_hi:
kernel_context_close(ctx_hi);
err_spin_lo:
igt_spinner_fini(&spin_lo);
err_spin_hi:
igt_spinner_fini(&spin_hi);
err_unlock:
igt_flush_test(i915, I915_WAIT_LOCKED);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
err_wedged:
igt_spinner_end(&spin_hi);
igt_spinner_end(&spin_lo);
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
struct preempt_client {
struct igt_spinner spin;
struct i915_gem_context *ctx;
};
static int preempt_client_init(struct drm_i915_private *i915,
struct preempt_client *c)
{
c->ctx = kernel_context(i915);
if (!c->ctx)
return -ENOMEM;
if (igt_spinner_init(&c->spin, i915))
goto err_ctx;
return 0;
err_ctx:
kernel_context_close(c->ctx);
return -ENOMEM;
}
static void preempt_client_fini(struct preempt_client *c)
{
igt_spinner_fini(&c->spin);
kernel_context_close(c->ctx);
}
static int live_suppress_self_preempt(void *arg)
{
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
struct i915_sched_attr attr = {
.priority = I915_USER_PRIORITY(I915_PRIORITY_MAX)
};
struct preempt_client a, b;
enum intel_engine_id id;
intel_wakeref_t wakeref;
int err = -ENOMEM;
/*
* Verify that if a preemption request does not cause a change in
* the current execution order, the preempt-to-idle injection is
* skipped and that we do not accidentally apply it after the CS
* completion event.
*/
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
if (USES_GUC_SUBMISSION(i915))
return 0; /* presume black blox */
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (preempt_client_init(i915, &a))
goto err_unlock;
if (preempt_client_init(i915, &b))
goto err_client_a;
for_each_engine(engine, i915, id) {
struct i915_request *rq_a, *rq_b;
int depth;
engine->execlists.preempt_hang.count = 0;
rq_a = igt_spinner_create_request(&a.spin,
a.ctx, engine,
MI_NOOP);
if (IS_ERR(rq_a)) {
err = PTR_ERR(rq_a);
goto err_client_b;
}
i915_request_add(rq_a);
if (!igt_wait_for_spinner(&a.spin, rq_a)) {
pr_err("First client failed to start\n");
goto err_wedged;
}
for (depth = 0; depth < 8; depth++) {
rq_b = igt_spinner_create_request(&b.spin,
b.ctx, engine,
MI_NOOP);
if (IS_ERR(rq_b)) {
err = PTR_ERR(rq_b);
goto err_client_b;
}
i915_request_add(rq_b);
GEM_BUG_ON(i915_request_completed(rq_a));
engine->schedule(rq_a, &attr);
igt_spinner_end(&a.spin);
if (!igt_wait_for_spinner(&b.spin, rq_b)) {
pr_err("Second client failed to start\n");
goto err_wedged;
}
swap(a, b);
rq_a = rq_b;
}
igt_spinner_end(&a.spin);
if (engine->execlists.preempt_hang.count) {
pr_err("Preemption recorded x%d, depth %d; should have been suppressed!\n",
engine->execlists.preempt_hang.count,
depth);
err = -EINVAL;
goto err_client_b;
}
if (igt_flush_test(i915, I915_WAIT_LOCKED))
goto err_wedged;
}
err = 0;
err_client_b:
preempt_client_fini(&b);
err_client_a:
preempt_client_fini(&a);
err_unlock:
if (igt_flush_test(i915, I915_WAIT_LOCKED))
err = -EIO;
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
err_wedged:
igt_spinner_end(&b.spin);
igt_spinner_end(&a.spin);
i915_gem_set_wedged(i915);
err = -EIO;
goto err_client_b;
}
static int __i915_sw_fence_call
dummy_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
{
return NOTIFY_DONE;
}
static struct i915_request *dummy_request(struct intel_engine_cs *engine)
{
struct i915_request *rq;
rq = kzalloc(sizeof(*rq), GFP_KERNEL);
if (!rq)
return NULL;
INIT_LIST_HEAD(&rq->active_list);
rq->engine = engine;
i915_sched_node_init(&rq->sched);
/* mark this request as permanently incomplete */
rq->fence.seqno = 1;
BUILD_BUG_ON(sizeof(rq->fence.seqno) != 8); /* upper 32b == 0 */
rq->hwsp_seqno = (u32 *)&rq->fence.seqno + 1;
GEM_BUG_ON(i915_request_completed(rq));
i915_sw_fence_init(&rq->submit, dummy_notify);
i915_sw_fence_commit(&rq->submit);
return rq;
}
static void dummy_request_free(struct i915_request *dummy)
{
i915_request_mark_complete(dummy);
i915_sched_node_fini(&dummy->sched);
i915_sw_fence_fini(&dummy->submit);
dma_fence_free(&dummy->fence);
}
static int live_suppress_wait_preempt(void *arg)
{
struct drm_i915_private *i915 = arg;
struct preempt_client client[4];
struct intel_engine_cs *engine;
enum intel_engine_id id;
intel_wakeref_t wakeref;
int err = -ENOMEM;
int i;
/*
* Waiters are given a little priority nudge, but not enough
* to actually cause any preemption. Double check that we do
* not needlessly generate preempt-to-idle cycles.
*/
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (preempt_client_init(i915, &client[0])) /* ELSP[0] */
goto err_unlock;
if (preempt_client_init(i915, &client[1])) /* ELSP[1] */
goto err_client_0;
if (preempt_client_init(i915, &client[2])) /* head of queue */
goto err_client_1;
if (preempt_client_init(i915, &client[3])) /* bystander */
goto err_client_2;
for_each_engine(engine, i915, id) {
int depth;
if (!engine->emit_init_breadcrumb)
continue;
for (depth = 0; depth < ARRAY_SIZE(client); depth++) {
struct i915_request *rq[ARRAY_SIZE(client)];
struct i915_request *dummy;
engine->execlists.preempt_hang.count = 0;
dummy = dummy_request(engine);
if (!dummy)
goto err_client_3;
for (i = 0; i < ARRAY_SIZE(client); i++) {
rq[i] = igt_spinner_create_request(&client[i].spin,
client[i].ctx, engine,
MI_NOOP);
if (IS_ERR(rq[i])) {
err = PTR_ERR(rq[i]);
goto err_wedged;
}
/* Disable NEWCLIENT promotion */
__i915_active_request_set(&rq[i]->timeline->last_request,
dummy);
i915_request_add(rq[i]);
}
dummy_request_free(dummy);
GEM_BUG_ON(i915_request_completed(rq[0]));
if (!igt_wait_for_spinner(&client[0].spin, rq[0])) {
pr_err("%s: First client failed to start\n",
engine->name);
goto err_wedged;
}
GEM_BUG_ON(!i915_request_started(rq[0]));
if (i915_request_wait(rq[depth],
I915_WAIT_LOCKED |
I915_WAIT_PRIORITY,
1) != -ETIME) {
pr_err("%s: Waiter depth:%d completed!\n",
engine->name, depth);
goto err_wedged;
}
for (i = 0; i < ARRAY_SIZE(client); i++)
igt_spinner_end(&client[i].spin);
if (igt_flush_test(i915, I915_WAIT_LOCKED))
goto err_wedged;
if (engine->execlists.preempt_hang.count) {
pr_err("%s: Preemption recorded x%d, depth %d; should have been suppressed!\n",
engine->name,
engine->execlists.preempt_hang.count,
depth);
err = -EINVAL;
goto err_client_3;
}
}
}
err = 0;
err_client_3:
preempt_client_fini(&client[3]);
err_client_2:
preempt_client_fini(&client[2]);
err_client_1:
preempt_client_fini(&client[1]);
err_client_0:
preempt_client_fini(&client[0]);
err_unlock:
if (igt_flush_test(i915, I915_WAIT_LOCKED))
err = -EIO;
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
err_wedged:
for (i = 0; i < ARRAY_SIZE(client); i++)
igt_spinner_end(&client[i].spin);
i915_gem_set_wedged(i915);
err = -EIO;
goto err_client_3;
}
static int live_chain_preempt(void *arg)
{
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
struct preempt_client hi, lo;
enum intel_engine_id id;
intel_wakeref_t wakeref;
int err = -ENOMEM;
/*
* Build a chain AB...BA between two contexts (A, B) and request
* preemption of the last request. It should then complete before
* the previously submitted spinner in B.
*/
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (preempt_client_init(i915, &hi))
goto err_unlock;
if (preempt_client_init(i915, &lo))
goto err_client_hi;
for_each_engine(engine, i915, id) {
struct i915_sched_attr attr = {
.priority = I915_USER_PRIORITY(I915_PRIORITY_MAX),
};
int count, i;
for_each_prime_number_from(count, 1, 32) { /* must fit ring! */
struct i915_request *rq;
rq = igt_spinner_create_request(&hi.spin,
hi.ctx, engine,
MI_ARB_CHECK);
if (IS_ERR(rq))
goto err_wedged;
i915_request_add(rq);
if (!igt_wait_for_spinner(&hi.spin, rq))
goto err_wedged;
rq = igt_spinner_create_request(&lo.spin,
lo.ctx, engine,
MI_ARB_CHECK);
if (IS_ERR(rq))
goto err_wedged;
i915_request_add(rq);
for (i = 0; i < count; i++) {
rq = i915_request_alloc(engine, lo.ctx);
if (IS_ERR(rq))
goto err_wedged;
i915_request_add(rq);
}
rq = i915_request_alloc(engine, hi.ctx);
if (IS_ERR(rq))
goto err_wedged;
i915_request_add(rq);
engine->schedule(rq, &attr);
igt_spinner_end(&hi.spin);
if (i915_request_wait(rq, I915_WAIT_LOCKED, HZ / 5) < 0) {
struct drm_printer p =
drm_info_printer(i915->drm.dev);
pr_err("Failed to preempt over chain of %d\n",
count);
intel_engine_dump(engine, &p,
"%s\n", engine->name);
goto err_wedged;
}
igt_spinner_end(&lo.spin);
}
}
err = 0;
err_client_lo:
preempt_client_fini(&lo);
err_client_hi:
preempt_client_fini(&hi);
err_unlock:
if (igt_flush_test(i915, I915_WAIT_LOCKED))
err = -EIO;
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
err_wedged:
igt_spinner_end(&hi.spin);
igt_spinner_end(&lo.spin);
i915_gem_set_wedged(i915);
err = -EIO;
goto err_client_lo;
}
static int live_preempt_hang(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_gem_context *ctx_hi, *ctx_lo;
struct igt_spinner spin_hi, spin_lo;
struct intel_engine_cs *engine;
enum intel_engine_id id;
intel_wakeref_t wakeref;
int err = -ENOMEM;
if (!HAS_LOGICAL_RING_PREEMPTION(i915))
return 0;
if (!intel_has_reset_engine(i915))
return 0;
mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(i915);
if (igt_spinner_init(&spin_hi, i915))
goto err_unlock;
if (igt_spinner_init(&spin_lo, i915))
goto err_spin_hi;
ctx_hi = kernel_context(i915);
if (!ctx_hi)
goto err_spin_lo;
ctx_hi->sched.priority = I915_CONTEXT_MAX_USER_PRIORITY;
ctx_lo = kernel_context(i915);
if (!ctx_lo)
goto err_ctx_hi;
ctx_lo->sched.priority = I915_CONTEXT_MIN_USER_PRIORITY;
for_each_engine(engine, i915, id) {
struct i915_request *rq;
if (!intel_engine_has_preemption(engine))
continue;
rq = igt_spinner_create_request(&spin_lo, ctx_lo, engine,
MI_ARB_CHECK);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto err_ctx_lo;
}
i915_request_add(rq);
if (!igt_wait_for_spinner(&spin_lo, rq)) {
GEM_TRACE("lo spinner failed to start\n");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
rq = igt_spinner_create_request(&spin_hi, ctx_hi, engine,
MI_ARB_CHECK);
if (IS_ERR(rq)) {
igt_spinner_end(&spin_lo);
err = PTR_ERR(rq);
goto err_ctx_lo;
}
init_completion(&engine->execlists.preempt_hang.completion);
engine->execlists.preempt_hang.inject_hang = true;
i915_request_add(rq);
if (!wait_for_completion_timeout(&engine->execlists.preempt_hang.completion,
HZ / 10)) {
pr_err("Preemption did not occur within timeout!");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
set_bit(I915_RESET_ENGINE + id, &i915->gpu_error.flags);
i915_reset_engine(engine, NULL);
clear_bit(I915_RESET_ENGINE + id, &i915->gpu_error.flags);
engine->execlists.preempt_hang.inject_hang = false;
if (!igt_wait_for_spinner(&spin_hi, rq)) {
GEM_TRACE("hi spinner failed to start\n");
GEM_TRACE_DUMP();
i915_gem_set_wedged(i915);
err = -EIO;
goto err_ctx_lo;
}
igt_spinner_end(&spin_hi);
igt_spinner_end(&spin_lo);
if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
err = -EIO;
goto err_ctx_lo;
}
}
err = 0;
err_ctx_lo:
kernel_context_close(ctx_lo);
err_ctx_hi:
kernel_context_close(ctx_hi);
err_spin_lo:
igt_spinner_fini(&spin_lo);
err_spin_hi:
igt_spinner_fini(&spin_hi);
err_unlock:
igt_flush_test(i915, I915_WAIT_LOCKED);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
return err;
}
static int random_range(struct rnd_state *rnd, int min, int max)
{
return i915_prandom_u32_max_state(max - min, rnd) + min;
}
static int random_priority(struct rnd_state *rnd)
{
return random_range(rnd, I915_PRIORITY_MIN, I915_PRIORITY_MAX);
}
struct preempt_smoke {
struct drm_i915_private *i915;
struct i915_gem_context **contexts;
struct intel_engine_cs *engine;
struct drm_i915_gem_object *batch;
unsigned int ncontext;
struct rnd_state prng;
unsigned long count;
};
static struct i915_gem_context *smoke_context(struct preempt_smoke *smoke)
{
return smoke->contexts[i915_prandom_u32_max_state(smoke->ncontext,
&smoke->prng)];
}
static int smoke_submit(struct preempt_smoke *smoke,
struct i915_gem_context *ctx, int prio,
struct drm_i915_gem_object *batch)
{
struct i915_request *rq;
struct i915_vma *vma = NULL;
int err = 0;
if (batch) {
vma = i915_vma_instance(batch, &ctx->ppgtt->vm, NULL);
if (IS_ERR(vma))
return PTR_ERR(vma);
err = i915_vma_pin(vma, 0, 0, PIN_USER);
if (err)
return err;
}
ctx->sched.priority = prio;
rq = i915_request_alloc(smoke->engine, ctx);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto unpin;
}
if (vma) {
err = rq->engine->emit_bb_start(rq,
vma->node.start,
PAGE_SIZE, 0);
if (!err)
err = i915_vma_move_to_active(vma, rq, 0);
}
i915_request_add(rq);
unpin:
if (vma)
i915_vma_unpin(vma);
return err;
}
static int smoke_crescendo_thread(void *arg)
{
struct preempt_smoke *smoke = arg;
IGT_TIMEOUT(end_time);
unsigned long count;
count = 0;
do {
struct i915_gem_context *ctx = smoke_context(smoke);
int err;
mutex_lock(&smoke->i915->drm.struct_mutex);
err = smoke_submit(smoke,
ctx, count % I915_PRIORITY_MAX,
smoke->batch);
mutex_unlock(&smoke->i915->drm.struct_mutex);
if (err)
return err;
count++;
} while (!__igt_timeout(end_time, NULL));
smoke->count = count;
return 0;
}
static int smoke_crescendo(struct preempt_smoke *smoke, unsigned int flags)
#define BATCH BIT(0)
{
struct task_struct *tsk[I915_NUM_ENGINES] = {};
struct preempt_smoke arg[I915_NUM_ENGINES];
struct intel_engine_cs *engine;
enum intel_engine_id id;
unsigned long count;
int err = 0;
mutex_unlock(&smoke->i915->drm.struct_mutex);
for_each_engine(engine, smoke->i915, id) {
arg[id] = *smoke;
arg[id].engine = engine;
if (!(flags & BATCH))
arg[id].batch = NULL;
arg[id].count = 0;
tsk[id] = kthread_run(smoke_crescendo_thread, &arg,
"igt/smoke:%d", id);
if (IS_ERR(tsk[id])) {
err = PTR_ERR(tsk[id]);
break;
}
get_task_struct(tsk[id]);
}
count = 0;
for_each_engine(engine, smoke->i915, id) {
int status;
if (IS_ERR_OR_NULL(tsk[id]))
continue;
status = kthread_stop(tsk[id]);
if (status && !err)
err = status;
count += arg[id].count;
put_task_struct(tsk[id]);
}
mutex_lock(&smoke->i915->drm.struct_mutex);
pr_info("Submitted %lu crescendo:%x requests across %d engines and %d contexts\n",
count, flags,
RUNTIME_INFO(smoke->i915)->num_rings, smoke->ncontext);
return 0;
}
static int smoke_random(struct preempt_smoke *smoke, unsigned int flags)
{
enum intel_engine_id id;
IGT_TIMEOUT(end_time);
unsigned long count;
count = 0;
do {
for_each_engine(smoke->engine, smoke->i915, id) {
struct i915_gem_context *ctx = smoke_context(smoke);
int err;
err = smoke_submit(smoke,
ctx, random_priority(&smoke->prng),
flags & BATCH ? smoke->batch : NULL);
if (err)
return err;
count++;
}
} while (!__igt_timeout(end_time, NULL));
pr_info("Submitted %lu random:%x requests across %d engines and %d contexts\n",
count, flags,
RUNTIME_INFO(smoke->i915)->num_rings, smoke->ncontext);
return 0;
}
static int live_preempt_smoke(void *arg)
{
struct preempt_smoke smoke = {
.i915 = arg,
.prng = I915_RND_STATE_INITIALIZER(i915_selftest.random_seed),
.ncontext = 1024,
};
const unsigned int phase[] = { 0, BATCH };
intel_wakeref_t wakeref;
int err = -ENOMEM;
u32 *cs;
int n;
if (!HAS_LOGICAL_RING_PREEMPTION(smoke.i915))
return 0;
smoke.contexts = kmalloc_array(smoke.ncontext,
sizeof(*smoke.contexts),
GFP_KERNEL);
if (!smoke.contexts)
return -ENOMEM;
mutex_lock(&smoke.i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(smoke.i915);
smoke.batch = i915_gem_object_create_internal(smoke.i915, PAGE_SIZE);
if (IS_ERR(smoke.batch)) {
err = PTR_ERR(smoke.batch);
goto err_unlock;
}
cs = i915_gem_object_pin_map(smoke.batch, I915_MAP_WB);
if (IS_ERR(cs)) {
err = PTR_ERR(cs);
goto err_batch;
}
for (n = 0; n < PAGE_SIZE / sizeof(*cs) - 1; n++)
cs[n] = MI_ARB_CHECK;
cs[n] = MI_BATCH_BUFFER_END;
i915_gem_object_unpin_map(smoke.batch);
err = i915_gem_object_set_to_gtt_domain(smoke.batch, false);
if (err)
goto err_batch;
for (n = 0; n < smoke.ncontext; n++) {
smoke.contexts[n] = kernel_context(smoke.i915);
if (!smoke.contexts[n])
goto err_ctx;
}
for (n = 0; n < ARRAY_SIZE(phase); n++) {
err = smoke_crescendo(&smoke, phase[n]);
if (err)
goto err_ctx;
err = smoke_random(&smoke, phase[n]);
if (err)
goto err_ctx;
}
err_ctx:
if (igt_flush_test(smoke.i915, I915_WAIT_LOCKED))
err = -EIO;
for (n = 0; n < smoke.ncontext; n++) {
if (!smoke.contexts[n])
break;
kernel_context_close(smoke.contexts[n]);
}
err_batch:
i915_gem_object_put(smoke.batch);
err_unlock:
intel_runtime_pm_put(smoke.i915, wakeref);
mutex_unlock(&smoke.i915->drm.struct_mutex);
kfree(smoke.contexts);
return err;
}
int intel_execlists_live_selftests(struct drm_i915_private *i915)
{
static const struct i915_subtest tests[] = {
SUBTEST(live_sanitycheck),
SUBTEST(live_preempt),
SUBTEST(live_late_preempt),
SUBTEST(live_suppress_self_preempt),
SUBTEST(live_suppress_wait_preempt),
SUBTEST(live_chain_preempt),
SUBTEST(live_preempt_hang),
SUBTEST(live_preempt_smoke),
};
if (!HAS_EXECLISTS(i915))
return 0;
if (i915_terminally_wedged(i915))
return 0;
return i915_subtests(tests, i915);
}
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