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1// SPDX-License-Identifier: MIT2/*3 * Copyright © 2023 Igalia S.L.4 */5 6#include <linux/sched/clock.h>7#include <linux/sysfs.h>8 9#include "v3d_drv.h"10 11static ssize_t12gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf)13{14 struct drm_device *drm = dev_get_drvdata(dev);15 struct v3d_dev *v3d = to_v3d_dev(drm);16 enum v3d_queue queue;17 u64 timestamp = local_clock();18 ssize_t len = 0;19 20 len += sysfs_emit(buf, "queue\ttimestamp\tjobs\truntime\n");21 22 for (queue = 0; queue < V3D_MAX_QUEUES; queue++) {23 struct v3d_stats *stats = &v3d->queue[queue].stats;24 u64 active_runtime, jobs_completed;25 26 v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed);27 28 /* Each line will display the queue name, timestamp, the number29 * of jobs sent to that queue and the runtime, as can be seem here:30 *31 * queue timestamp jobs runtime32 * bin 239043069420 22620 1743816405633 * render 239043069420 22619 2728481416134 * tfu 239043069420 8763 39459256635 * csd 239043069420 3168 1078790553036 * cache_clean 239043069420 6127 23737594037 */38 len += sysfs_emit_at(buf, len, "%s\t%llu\t%llu\t%llu\n",39 v3d_queue_to_string(queue),40 timestamp, jobs_completed, active_runtime);41 }42 43 return len;44}45static DEVICE_ATTR_RO(gpu_stats);46 47static struct attribute *v3d_sysfs_entries[] = {48 &dev_attr_gpu_stats.attr,49 NULL,50};51 52static struct attribute_group v3d_sysfs_attr_group = {53 .attrs = v3d_sysfs_entries,54};55 56int57v3d_sysfs_init(struct device *dev)58{59 return sysfs_create_group(&dev->kobj, &v3d_sysfs_attr_group);60}61 62void63v3d_sysfs_destroy(struct device *dev)64{65 return sysfs_remove_group(&dev->kobj, &v3d_sysfs_attr_group);66}67