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12d1624ce3
Create a function to decouple the stats calculation from the printing. This will be useful in the next step when we add a seqcount to protect the stats. Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240420213632.339941-6-mcanal@igalia.com
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023 Igalia S.L.
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*/
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#include <linux/sched/clock.h>
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#include <linux/sysfs.h>
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#include "v3d_drv.h"
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static ssize_t
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gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct drm_device *drm = dev_get_drvdata(dev);
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struct v3d_dev *v3d = to_v3d_dev(drm);
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enum v3d_queue queue;
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u64 timestamp = local_clock();
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ssize_t len = 0;
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len += sysfs_emit(buf, "queue\ttimestamp\tjobs\truntime\n");
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for (queue = 0; queue < V3D_MAX_QUEUES; queue++) {
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struct v3d_stats *stats = &v3d->queue[queue].stats;
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u64 active_runtime, jobs_completed;
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v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed);
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/* Each line will display the queue name, timestamp, the number
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* of jobs sent to that queue and the runtime, as can be seem here:
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*
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* queue timestamp jobs runtime
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* bin 239043069420 22620 17438164056
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* render 239043069420 22619 27284814161
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* tfu 239043069420 8763 394592566
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* csd 239043069420 3168 10787905530
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* cache_clean 239043069420 6127 237375940
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*/
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len += sysfs_emit_at(buf, len, "%s\t%llu\t%llu\t%llu\n",
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v3d_queue_to_string(queue),
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timestamp, jobs_completed, active_runtime);
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}
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return len;
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}
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static DEVICE_ATTR_RO(gpu_stats);
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static struct attribute *v3d_sysfs_entries[] = {
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&dev_attr_gpu_stats.attr,
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NULL,
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};
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static struct attribute_group v3d_sysfs_attr_group = {
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.attrs = v3d_sysfs_entries,
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};
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int
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v3d_sysfs_init(struct device *dev)
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{
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return sysfs_create_group(&dev->kobj, &v3d_sysfs_attr_group);
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}
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void
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v3d_sysfs_destroy(struct device *dev)
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{
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return sysfs_remove_group(&dev->kobj, &v3d_sysfs_attr_group);
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}
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