112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2020 Intel Corporation
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <uapi/drm/i915_drm.h>
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#include <drm/drm_print.h>
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#include "gem/i915_gem_context.h"
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#include "i915_drm_client.h"
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#include "i915_file_private.h"
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#include "i915_gem.h"
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#include "i915_utils.h"
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struct i915_drm_client *i915_drm_client_alloc(void)
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{
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struct i915_drm_client *client;
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client = kzalloc(sizeof(*client), GFP_KERNEL);
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if (!client)
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return NULL;
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kref_init(&client->kref);
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spin_lock_init(&client->ctx_lock);
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INIT_LIST_HEAD(&client->ctx_list);
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return client;
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}
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void __i915_drm_client_free(struct kref *kref)
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{
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struct i915_drm_client *client =
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container_of(kref, typeof(*client), kref);
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kfree(client);
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}
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#ifdef CONFIG_PROC_FS
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static const char * const uabi_class_names[] = {
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[I915_ENGINE_CLASS_RENDER] = "render",
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[I915_ENGINE_CLASS_COPY] = "copy",
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[I915_ENGINE_CLASS_VIDEO] = "video",
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[I915_ENGINE_CLASS_VIDEO_ENHANCE] = "video-enhance",
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[I915_ENGINE_CLASS_COMPUTE] = "compute",
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};
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static u64 busy_add(struct i915_gem_context *ctx, unsigned int class)
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{
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struct i915_gem_engines_iter it;
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struct intel_context *ce;
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u64 total = 0;
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for_each_gem_engine(ce, rcu_dereference(ctx->engines), it) {
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if (ce->engine->uabi_class != class)
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continue;
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total += intel_context_get_total_runtime_ns(ce);
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}
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return total;
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}
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static void
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show_client_class(struct drm_printer *p,
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struct drm_i915_private *i915,
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struct i915_drm_client *client,
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unsigned int class)
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{
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const unsigned int capacity = i915->engine_uabi_class_count[class];
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u64 total = atomic64_read(&client->past_runtime[class]);
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struct i915_gem_context *ctx;
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rcu_read_lock();
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list_for_each_entry_rcu(ctx, &client->ctx_list, client_link)
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total += busy_add(ctx, class);
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rcu_read_unlock();
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if (capacity)
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drm_printf(p, "drm-engine-%s:\t%llu ns\n",
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uabi_class_names[class], total);
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if (capacity > 1)
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drm_printf(p, "drm-engine-capacity-%s:\t%u\n",
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uabi_class_names[class],
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capacity);
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}
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void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file)
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{
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struct drm_i915_file_private *file_priv = file->driver_priv;
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struct drm_i915_private *i915 = file_priv->i915;
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unsigned int i;
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/*
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* ******************************************************************
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* For text output format description please see drm-usage-stats.rst!
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* ******************************************************************
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*/
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if (GRAPHICS_VER(i915) < 8)
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return;
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for (i = 0; i < ARRAY_SIZE(uabi_class_names); i++)
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show_client_class(p, i915, file_priv->client, i);
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}
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#endif
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