866 lines
20 KiB
C
866 lines
20 KiB
C
/*
|
|
* Copyright © 2016 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <linux/prime_numbers.h>
|
|
|
|
#include "../i915_selftest.h"
|
|
|
|
#include "mock_context.h"
|
|
#include "mock_gem_device.h"
|
|
|
|
static int igt_add_request(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct i915_request *request;
|
|
int err = -ENOMEM;
|
|
|
|
/* Basic preliminary test to create a request and let it loose! */
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
request = mock_request(i915->engine[RCS],
|
|
i915->kernel_context,
|
|
HZ / 10);
|
|
if (!request)
|
|
goto out_unlock;
|
|
|
|
i915_request_add(request);
|
|
|
|
err = 0;
|
|
out_unlock:
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static int igt_wait_request(void *arg)
|
|
{
|
|
const long T = HZ / 4;
|
|
struct drm_i915_private *i915 = arg;
|
|
struct i915_request *request;
|
|
int err = -EINVAL;
|
|
|
|
/* Submit a request, then wait upon it */
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
request = mock_request(i915->engine[RCS], i915->kernel_context, T);
|
|
if (!request) {
|
|
err = -ENOMEM;
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, 0) != -ETIME) {
|
|
pr_err("request wait (busy query) succeeded (expected timeout before submit!)\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, T) != -ETIME) {
|
|
pr_err("request wait succeeded (expected timeout before submit!)\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_completed(request)) {
|
|
pr_err("request completed before submit!!\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
i915_request_add(request);
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, 0) != -ETIME) {
|
|
pr_err("request wait (busy query) succeeded (expected timeout after submit!)\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_completed(request)) {
|
|
pr_err("request completed immediately!\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, T / 2) != -ETIME) {
|
|
pr_err("request wait succeeded (expected timeout!)\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, T) == -ETIME) {
|
|
pr_err("request wait timed out!\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (!i915_request_completed(request)) {
|
|
pr_err("request not complete after waiting!\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
if (i915_request_wait(request, I915_WAIT_LOCKED, T) == -ETIME) {
|
|
pr_err("request wait timed out when already complete!\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
err = 0;
|
|
out_unlock:
|
|
mock_device_flush(i915);
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static int igt_fence_wait(void *arg)
|
|
{
|
|
const long T = HZ / 4;
|
|
struct drm_i915_private *i915 = arg;
|
|
struct i915_request *request;
|
|
int err = -EINVAL;
|
|
|
|
/* Submit a request, treat it as a fence and wait upon it */
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
request = mock_request(i915->engine[RCS], i915->kernel_context, T);
|
|
if (!request) {
|
|
err = -ENOMEM;
|
|
goto out_locked;
|
|
}
|
|
mutex_unlock(&i915->drm.struct_mutex); /* safe as we are single user */
|
|
|
|
if (dma_fence_wait_timeout(&request->fence, false, T) != -ETIME) {
|
|
pr_err("fence wait success before submit (expected timeout)!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
i915_request_add(request);
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
|
|
if (dma_fence_is_signaled(&request->fence)) {
|
|
pr_err("fence signaled immediately!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
if (dma_fence_wait_timeout(&request->fence, false, T / 2) != -ETIME) {
|
|
pr_err("fence wait success after submit (expected timeout)!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
if (dma_fence_wait_timeout(&request->fence, false, T) <= 0) {
|
|
pr_err("fence wait timed out (expected success)!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
if (!dma_fence_is_signaled(&request->fence)) {
|
|
pr_err("fence unsignaled after waiting!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
if (dma_fence_wait_timeout(&request->fence, false, T) <= 0) {
|
|
pr_err("fence wait timed out when complete (expected success)!\n");
|
|
goto out_device;
|
|
}
|
|
|
|
err = 0;
|
|
out_device:
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
out_locked:
|
|
mock_device_flush(i915);
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static int igt_request_rewind(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct i915_request *request, *vip;
|
|
struct i915_gem_context *ctx[2];
|
|
int err = -EINVAL;
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
ctx[0] = mock_context(i915, "A");
|
|
request = mock_request(i915->engine[RCS], ctx[0], 2 * HZ);
|
|
if (!request) {
|
|
err = -ENOMEM;
|
|
goto err_context_0;
|
|
}
|
|
|
|
i915_request_get(request);
|
|
i915_request_add(request);
|
|
|
|
ctx[1] = mock_context(i915, "B");
|
|
vip = mock_request(i915->engine[RCS], ctx[1], 0);
|
|
if (!vip) {
|
|
err = -ENOMEM;
|
|
goto err_context_1;
|
|
}
|
|
|
|
/* Simulate preemption by manual reordering */
|
|
if (!mock_cancel_request(request)) {
|
|
pr_err("failed to cancel request (already executed)!\n");
|
|
i915_request_add(vip);
|
|
goto err_context_1;
|
|
}
|
|
i915_request_get(vip);
|
|
i915_request_add(vip);
|
|
rcu_read_lock();
|
|
request->engine->submit_request(request);
|
|
rcu_read_unlock();
|
|
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
|
|
if (i915_request_wait(vip, 0, HZ) == -ETIME) {
|
|
pr_err("timed out waiting for high priority request, vip.seqno=%d, current seqno=%d\n",
|
|
vip->global_seqno, intel_engine_get_seqno(i915->engine[RCS]));
|
|
goto err;
|
|
}
|
|
|
|
if (i915_request_completed(request)) {
|
|
pr_err("low priority request already completed\n");
|
|
goto err;
|
|
}
|
|
|
|
err = 0;
|
|
err:
|
|
i915_request_put(vip);
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
err_context_1:
|
|
mock_context_close(ctx[1]);
|
|
i915_request_put(request);
|
|
err_context_0:
|
|
mock_context_close(ctx[0]);
|
|
mock_device_flush(i915);
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
int i915_request_mock_selftests(void)
|
|
{
|
|
static const struct i915_subtest tests[] = {
|
|
SUBTEST(igt_add_request),
|
|
SUBTEST(igt_wait_request),
|
|
SUBTEST(igt_fence_wait),
|
|
SUBTEST(igt_request_rewind),
|
|
};
|
|
struct drm_i915_private *i915;
|
|
int err;
|
|
|
|
i915 = mock_gem_device();
|
|
if (!i915)
|
|
return -ENOMEM;
|
|
|
|
err = i915_subtests(tests, i915);
|
|
drm_dev_unref(&i915->drm);
|
|
|
|
return err;
|
|
}
|
|
|
|
struct live_test {
|
|
struct drm_i915_private *i915;
|
|
const char *func;
|
|
const char *name;
|
|
|
|
unsigned int reset_count;
|
|
};
|
|
|
|
static int begin_live_test(struct live_test *t,
|
|
struct drm_i915_private *i915,
|
|
const char *func,
|
|
const char *name)
|
|
{
|
|
int err;
|
|
|
|
t->i915 = i915;
|
|
t->func = func;
|
|
t->name = name;
|
|
|
|
err = i915_gem_wait_for_idle(i915, I915_WAIT_LOCKED);
|
|
if (err) {
|
|
pr_err("%s(%s): failed to idle before, with err=%d!",
|
|
func, name, err);
|
|
return err;
|
|
}
|
|
|
|
i915->gpu_error.missed_irq_rings = 0;
|
|
t->reset_count = i915_reset_count(&i915->gpu_error);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int end_live_test(struct live_test *t)
|
|
{
|
|
struct drm_i915_private *i915 = t->i915;
|
|
|
|
i915_retire_requests(i915);
|
|
|
|
if (wait_for(intel_engines_are_idle(i915), 10)) {
|
|
pr_err("%s(%s): GPU not idle\n", t->func, t->name);
|
|
return -EIO;
|
|
}
|
|
|
|
if (t->reset_count != i915_reset_count(&i915->gpu_error)) {
|
|
pr_err("%s(%s): GPU was reset %d times!\n",
|
|
t->func, t->name,
|
|
i915_reset_count(&i915->gpu_error) - t->reset_count);
|
|
return -EIO;
|
|
}
|
|
|
|
if (i915->gpu_error.missed_irq_rings) {
|
|
pr_err("%s(%s): Missed interrupts on engines %lx\n",
|
|
t->func, t->name, i915->gpu_error.missed_irq_rings);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int live_nop_request(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct intel_engine_cs *engine;
|
|
struct live_test t;
|
|
unsigned int id;
|
|
int err = -ENODEV;
|
|
|
|
/* Submit various sized batches of empty requests, to each engine
|
|
* (individually), and wait for the batch to complete. We can check
|
|
* the overhead of submitting requests to the hardware.
|
|
*/
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
IGT_TIMEOUT(end_time);
|
|
struct i915_request *request;
|
|
unsigned long n, prime;
|
|
ktime_t times[2] = {};
|
|
|
|
err = begin_live_test(&t, i915, __func__, engine->name);
|
|
if (err)
|
|
goto out_unlock;
|
|
|
|
for_each_prime_number_from(prime, 1, 8192) {
|
|
times[1] = ktime_get_raw();
|
|
|
|
for (n = 0; n < prime; n++) {
|
|
request = i915_request_alloc(engine,
|
|
i915->kernel_context);
|
|
if (IS_ERR(request)) {
|
|
err = PTR_ERR(request);
|
|
goto out_unlock;
|
|
}
|
|
|
|
/* This space is left intentionally blank.
|
|
*
|
|
* We do not actually want to perform any
|
|
* action with this request, we just want
|
|
* to measure the latency in allocation
|
|
* and submission of our breadcrumbs -
|
|
* ensuring that the bare request is sufficient
|
|
* for the system to work (i.e. proper HEAD
|
|
* tracking of the rings, interrupt handling,
|
|
* etc). It also gives us the lowest bounds
|
|
* for latency.
|
|
*/
|
|
|
|
i915_request_add(request);
|
|
}
|
|
i915_request_wait(request,
|
|
I915_WAIT_LOCKED,
|
|
MAX_SCHEDULE_TIMEOUT);
|
|
|
|
times[1] = ktime_sub(ktime_get_raw(), times[1]);
|
|
if (prime == 1)
|
|
times[0] = times[1];
|
|
|
|
if (__igt_timeout(end_time, NULL))
|
|
break;
|
|
}
|
|
|
|
err = end_live_test(&t);
|
|
if (err)
|
|
goto out_unlock;
|
|
|
|
pr_info("Request latencies on %s: 1 = %lluns, %lu = %lluns\n",
|
|
engine->name,
|
|
ktime_to_ns(times[0]),
|
|
prime, div64_u64(ktime_to_ns(times[1]), prime));
|
|
}
|
|
|
|
out_unlock:
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static struct i915_vma *empty_batch(struct drm_i915_private *i915)
|
|
{
|
|
struct drm_i915_gem_object *obj;
|
|
struct i915_vma *vma;
|
|
u32 *cmd;
|
|
int err;
|
|
|
|
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
|
|
if (IS_ERR(obj))
|
|
return ERR_CAST(obj);
|
|
|
|
cmd = i915_gem_object_pin_map(obj, I915_MAP_WB);
|
|
if (IS_ERR(cmd)) {
|
|
err = PTR_ERR(cmd);
|
|
goto err;
|
|
}
|
|
|
|
*cmd = MI_BATCH_BUFFER_END;
|
|
i915_gem_chipset_flush(i915);
|
|
|
|
i915_gem_object_unpin_map(obj);
|
|
|
|
err = i915_gem_object_set_to_gtt_domain(obj, false);
|
|
if (err)
|
|
goto err;
|
|
|
|
vma = i915_vma_instance(obj, &i915->ggtt.base, NULL);
|
|
if (IS_ERR(vma)) {
|
|
err = PTR_ERR(vma);
|
|
goto err;
|
|
}
|
|
|
|
err = i915_vma_pin(vma, 0, 0, PIN_USER | PIN_GLOBAL);
|
|
if (err)
|
|
goto err;
|
|
|
|
return vma;
|
|
|
|
err:
|
|
i915_gem_object_put(obj);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static struct i915_request *
|
|
empty_request(struct intel_engine_cs *engine,
|
|
struct i915_vma *batch)
|
|
{
|
|
struct i915_request *request;
|
|
int err;
|
|
|
|
request = i915_request_alloc(engine, engine->i915->kernel_context);
|
|
if (IS_ERR(request))
|
|
return request;
|
|
|
|
err = engine->emit_bb_start(request,
|
|
batch->node.start,
|
|
batch->node.size,
|
|
I915_DISPATCH_SECURE);
|
|
if (err)
|
|
goto out_request;
|
|
|
|
out_request:
|
|
__i915_request_add(request, err == 0);
|
|
return err ? ERR_PTR(err) : request;
|
|
}
|
|
|
|
static int live_empty_request(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct intel_engine_cs *engine;
|
|
struct live_test t;
|
|
struct i915_vma *batch;
|
|
unsigned int id;
|
|
int err = 0;
|
|
|
|
/* Submit various sized batches of empty requests, to each engine
|
|
* (individually), and wait for the batch to complete. We can check
|
|
* the overhead of submitting requests to the hardware.
|
|
*/
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
|
|
batch = empty_batch(i915);
|
|
if (IS_ERR(batch)) {
|
|
err = PTR_ERR(batch);
|
|
goto out_unlock;
|
|
}
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
IGT_TIMEOUT(end_time);
|
|
struct i915_request *request;
|
|
unsigned long n, prime;
|
|
ktime_t times[2] = {};
|
|
|
|
err = begin_live_test(&t, i915, __func__, engine->name);
|
|
if (err)
|
|
goto out_batch;
|
|
|
|
/* Warmup / preload */
|
|
request = empty_request(engine, batch);
|
|
if (IS_ERR(request)) {
|
|
err = PTR_ERR(request);
|
|
goto out_batch;
|
|
}
|
|
i915_request_wait(request,
|
|
I915_WAIT_LOCKED,
|
|
MAX_SCHEDULE_TIMEOUT);
|
|
|
|
for_each_prime_number_from(prime, 1, 8192) {
|
|
times[1] = ktime_get_raw();
|
|
|
|
for (n = 0; n < prime; n++) {
|
|
request = empty_request(engine, batch);
|
|
if (IS_ERR(request)) {
|
|
err = PTR_ERR(request);
|
|
goto out_batch;
|
|
}
|
|
}
|
|
i915_request_wait(request,
|
|
I915_WAIT_LOCKED,
|
|
MAX_SCHEDULE_TIMEOUT);
|
|
|
|
times[1] = ktime_sub(ktime_get_raw(), times[1]);
|
|
if (prime == 1)
|
|
times[0] = times[1];
|
|
|
|
if (__igt_timeout(end_time, NULL))
|
|
break;
|
|
}
|
|
|
|
err = end_live_test(&t);
|
|
if (err)
|
|
goto out_batch;
|
|
|
|
pr_info("Batch latencies on %s: 1 = %lluns, %lu = %lluns\n",
|
|
engine->name,
|
|
ktime_to_ns(times[0]),
|
|
prime, div64_u64(ktime_to_ns(times[1]), prime));
|
|
}
|
|
|
|
out_batch:
|
|
i915_vma_unpin(batch);
|
|
i915_vma_put(batch);
|
|
out_unlock:
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static struct i915_vma *recursive_batch(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_gem_context *ctx = i915->kernel_context;
|
|
struct i915_address_space *vm = ctx->ppgtt ? &ctx->ppgtt->base : &i915->ggtt.base;
|
|
struct drm_i915_gem_object *obj;
|
|
const int gen = INTEL_GEN(i915);
|
|
struct i915_vma *vma;
|
|
u32 *cmd;
|
|
int err;
|
|
|
|
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
|
|
if (IS_ERR(obj))
|
|
return ERR_CAST(obj);
|
|
|
|
vma = i915_vma_instance(obj, vm, NULL);
|
|
if (IS_ERR(vma)) {
|
|
err = PTR_ERR(vma);
|
|
goto err;
|
|
}
|
|
|
|
err = i915_vma_pin(vma, 0, 0, PIN_USER);
|
|
if (err)
|
|
goto err;
|
|
|
|
err = i915_gem_object_set_to_wc_domain(obj, true);
|
|
if (err)
|
|
goto err;
|
|
|
|
cmd = i915_gem_object_pin_map(obj, I915_MAP_WC);
|
|
if (IS_ERR(cmd)) {
|
|
err = PTR_ERR(cmd);
|
|
goto err;
|
|
}
|
|
|
|
if (gen >= 8) {
|
|
*cmd++ = MI_BATCH_BUFFER_START | 1 << 8 | 1;
|
|
*cmd++ = lower_32_bits(vma->node.start);
|
|
*cmd++ = upper_32_bits(vma->node.start);
|
|
} else if (gen >= 6) {
|
|
*cmd++ = MI_BATCH_BUFFER_START | 1 << 8;
|
|
*cmd++ = lower_32_bits(vma->node.start);
|
|
} else if (gen >= 4) {
|
|
*cmd++ = MI_BATCH_BUFFER_START | MI_BATCH_GTT;
|
|
*cmd++ = lower_32_bits(vma->node.start);
|
|
} else {
|
|
*cmd++ = MI_BATCH_BUFFER_START | MI_BATCH_GTT | 1;
|
|
*cmd++ = lower_32_bits(vma->node.start);
|
|
}
|
|
*cmd++ = MI_BATCH_BUFFER_END; /* terminate early in case of error */
|
|
i915_gem_chipset_flush(i915);
|
|
|
|
i915_gem_object_unpin_map(obj);
|
|
|
|
return vma;
|
|
|
|
err:
|
|
i915_gem_object_put(obj);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int recursive_batch_resolve(struct i915_vma *batch)
|
|
{
|
|
u32 *cmd;
|
|
|
|
cmd = i915_gem_object_pin_map(batch->obj, I915_MAP_WC);
|
|
if (IS_ERR(cmd))
|
|
return PTR_ERR(cmd);
|
|
|
|
*cmd = MI_BATCH_BUFFER_END;
|
|
i915_gem_chipset_flush(batch->vm->i915);
|
|
|
|
i915_gem_object_unpin_map(batch->obj);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int live_all_engines(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct intel_engine_cs *engine;
|
|
struct i915_request *request[I915_NUM_ENGINES];
|
|
struct i915_vma *batch;
|
|
struct live_test t;
|
|
unsigned int id;
|
|
int err;
|
|
|
|
/* Check we can submit requests to all engines simultaneously. We
|
|
* send a recursive batch to each engine - checking that we don't
|
|
* block doing so, and that they don't complete too soon.
|
|
*/
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
|
|
err = begin_live_test(&t, i915, __func__, "");
|
|
if (err)
|
|
goto out_unlock;
|
|
|
|
batch = recursive_batch(i915);
|
|
if (IS_ERR(batch)) {
|
|
err = PTR_ERR(batch);
|
|
pr_err("%s: Unable to create batch, err=%d\n", __func__, err);
|
|
goto out_unlock;
|
|
}
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
request[id] = i915_request_alloc(engine, i915->kernel_context);
|
|
if (IS_ERR(request[id])) {
|
|
err = PTR_ERR(request[id]);
|
|
pr_err("%s: Request allocation failed with err=%d\n",
|
|
__func__, err);
|
|
goto out_request;
|
|
}
|
|
|
|
err = engine->emit_bb_start(request[id],
|
|
batch->node.start,
|
|
batch->node.size,
|
|
0);
|
|
GEM_BUG_ON(err);
|
|
request[id]->batch = batch;
|
|
|
|
if (!i915_gem_object_has_active_reference(batch->obj)) {
|
|
i915_gem_object_get(batch->obj);
|
|
i915_gem_object_set_active_reference(batch->obj);
|
|
}
|
|
|
|
i915_vma_move_to_active(batch, request[id], 0);
|
|
i915_request_get(request[id]);
|
|
i915_request_add(request[id]);
|
|
}
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
if (i915_request_completed(request[id])) {
|
|
pr_err("%s(%s): request completed too early!\n",
|
|
__func__, engine->name);
|
|
err = -EINVAL;
|
|
goto out_request;
|
|
}
|
|
}
|
|
|
|
err = recursive_batch_resolve(batch);
|
|
if (err) {
|
|
pr_err("%s: failed to resolve batch, err=%d\n", __func__, err);
|
|
goto out_request;
|
|
}
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
long timeout;
|
|
|
|
timeout = i915_request_wait(request[id],
|
|
I915_WAIT_LOCKED,
|
|
MAX_SCHEDULE_TIMEOUT);
|
|
if (timeout < 0) {
|
|
err = timeout;
|
|
pr_err("%s: error waiting for request on %s, err=%d\n",
|
|
__func__, engine->name, err);
|
|
goto out_request;
|
|
}
|
|
|
|
GEM_BUG_ON(!i915_request_completed(request[id]));
|
|
i915_request_put(request[id]);
|
|
request[id] = NULL;
|
|
}
|
|
|
|
err = end_live_test(&t);
|
|
|
|
out_request:
|
|
for_each_engine(engine, i915, id)
|
|
if (request[id])
|
|
i915_request_put(request[id]);
|
|
i915_vma_unpin(batch);
|
|
i915_vma_put(batch);
|
|
out_unlock:
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
static int live_sequential_engines(void *arg)
|
|
{
|
|
struct drm_i915_private *i915 = arg;
|
|
struct i915_request *request[I915_NUM_ENGINES] = {};
|
|
struct i915_request *prev = NULL;
|
|
struct intel_engine_cs *engine;
|
|
struct live_test t;
|
|
unsigned int id;
|
|
int err;
|
|
|
|
/* Check we can submit requests to all engines sequentially, such
|
|
* that each successive request waits for the earlier ones. This
|
|
* tests that we don't execute requests out of order, even though
|
|
* they are running on independent engines.
|
|
*/
|
|
|
|
mutex_lock(&i915->drm.struct_mutex);
|
|
|
|
err = begin_live_test(&t, i915, __func__, "");
|
|
if (err)
|
|
goto out_unlock;
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
struct i915_vma *batch;
|
|
|
|
batch = recursive_batch(i915);
|
|
if (IS_ERR(batch)) {
|
|
err = PTR_ERR(batch);
|
|
pr_err("%s: Unable to create batch for %s, err=%d\n",
|
|
__func__, engine->name, err);
|
|
goto out_unlock;
|
|
}
|
|
|
|
request[id] = i915_request_alloc(engine, i915->kernel_context);
|
|
if (IS_ERR(request[id])) {
|
|
err = PTR_ERR(request[id]);
|
|
pr_err("%s: Request allocation failed for %s with err=%d\n",
|
|
__func__, engine->name, err);
|
|
goto out_request;
|
|
}
|
|
|
|
if (prev) {
|
|
err = i915_request_await_dma_fence(request[id],
|
|
&prev->fence);
|
|
if (err) {
|
|
i915_request_add(request[id]);
|
|
pr_err("%s: Request await failed for %s with err=%d\n",
|
|
__func__, engine->name, err);
|
|
goto out_request;
|
|
}
|
|
}
|
|
|
|
err = engine->emit_bb_start(request[id],
|
|
batch->node.start,
|
|
batch->node.size,
|
|
0);
|
|
GEM_BUG_ON(err);
|
|
request[id]->batch = batch;
|
|
|
|
i915_vma_move_to_active(batch, request[id], 0);
|
|
i915_gem_object_set_active_reference(batch->obj);
|
|
i915_vma_get(batch);
|
|
|
|
i915_request_get(request[id]);
|
|
i915_request_add(request[id]);
|
|
|
|
prev = request[id];
|
|
}
|
|
|
|
for_each_engine(engine, i915, id) {
|
|
long timeout;
|
|
|
|
if (i915_request_completed(request[id])) {
|
|
pr_err("%s(%s): request completed too early!\n",
|
|
__func__, engine->name);
|
|
err = -EINVAL;
|
|
goto out_request;
|
|
}
|
|
|
|
err = recursive_batch_resolve(request[id]->batch);
|
|
if (err) {
|
|
pr_err("%s: failed to resolve batch, err=%d\n",
|
|
__func__, err);
|
|
goto out_request;
|
|
}
|
|
|
|
timeout = i915_request_wait(request[id],
|
|
I915_WAIT_LOCKED,
|
|
MAX_SCHEDULE_TIMEOUT);
|
|
if (timeout < 0) {
|
|
err = timeout;
|
|
pr_err("%s: error waiting for request on %s, err=%d\n",
|
|
__func__, engine->name, err);
|
|
goto out_request;
|
|
}
|
|
|
|
GEM_BUG_ON(!i915_request_completed(request[id]));
|
|
}
|
|
|
|
err = end_live_test(&t);
|
|
|
|
out_request:
|
|
for_each_engine(engine, i915, id) {
|
|
u32 *cmd;
|
|
|
|
if (!request[id])
|
|
break;
|
|
|
|
cmd = i915_gem_object_pin_map(request[id]->batch->obj,
|
|
I915_MAP_WC);
|
|
if (!IS_ERR(cmd)) {
|
|
*cmd = MI_BATCH_BUFFER_END;
|
|
i915_gem_chipset_flush(i915);
|
|
|
|
i915_gem_object_unpin_map(request[id]->batch->obj);
|
|
}
|
|
|
|
i915_vma_put(request[id]->batch);
|
|
i915_request_put(request[id]);
|
|
}
|
|
out_unlock:
|
|
mutex_unlock(&i915->drm.struct_mutex);
|
|
return err;
|
|
}
|
|
|
|
int i915_request_live_selftests(struct drm_i915_private *i915)
|
|
{
|
|
static const struct i915_subtest tests[] = {
|
|
SUBTEST(live_nop_request),
|
|
SUBTEST(live_all_engines),
|
|
SUBTEST(live_sequential_engines),
|
|
SUBTEST(live_empty_request),
|
|
};
|
|
return i915_subtests(tests, i915);
|
|
}
|