11bb76ff1Sjsg // SPDX-License-Identifier: MIT
21bb76ff1Sjsg /*
31bb76ff1Sjsg * Copyright © 2020 Intel Corporation
41bb76ff1Sjsg */
51bb76ff1Sjsg
61bb76ff1Sjsg #include <linux/kernel.h>
71bb76ff1Sjsg #include <linux/slab.h>
81bb76ff1Sjsg #include <linux/types.h>
91bb76ff1Sjsg
101bb76ff1Sjsg #include <uapi/drm/i915_drm.h>
111bb76ff1Sjsg
121bb76ff1Sjsg #include <drm/drm_print.h>
131bb76ff1Sjsg
141bb76ff1Sjsg #include "gem/i915_gem_context.h"
151bb76ff1Sjsg #include "i915_drm_client.h"
161bb76ff1Sjsg #include "i915_file_private.h"
171bb76ff1Sjsg #include "i915_gem.h"
181bb76ff1Sjsg #include "i915_utils.h"
191bb76ff1Sjsg
i915_drm_client_alloc(void)20*f005ef32Sjsg struct i915_drm_client *i915_drm_client_alloc(void)
211bb76ff1Sjsg {
221bb76ff1Sjsg struct i915_drm_client *client;
231bb76ff1Sjsg
241bb76ff1Sjsg client = kzalloc(sizeof(*client), GFP_KERNEL);
251bb76ff1Sjsg if (!client)
26*f005ef32Sjsg return NULL;
271bb76ff1Sjsg
281bb76ff1Sjsg kref_init(&client->kref);
291bb76ff1Sjsg mtx_init(&client->ctx_lock, IPL_NONE);
301bb76ff1Sjsg INIT_LIST_HEAD(&client->ctx_list);
311bb76ff1Sjsg
321bb76ff1Sjsg return client;
331bb76ff1Sjsg }
341bb76ff1Sjsg
__i915_drm_client_free(struct kref * kref)351bb76ff1Sjsg void __i915_drm_client_free(struct kref *kref)
361bb76ff1Sjsg {
371bb76ff1Sjsg struct i915_drm_client *client =
381bb76ff1Sjsg container_of(kref, typeof(*client), kref);
391bb76ff1Sjsg
401bb76ff1Sjsg kfree(client);
411bb76ff1Sjsg }
421bb76ff1Sjsg
431bb76ff1Sjsg #ifdef CONFIG_PROC_FS
441bb76ff1Sjsg static const char * const uabi_class_names[] = {
451bb76ff1Sjsg [I915_ENGINE_CLASS_RENDER] = "render",
461bb76ff1Sjsg [I915_ENGINE_CLASS_COPY] = "copy",
471bb76ff1Sjsg [I915_ENGINE_CLASS_VIDEO] = "video",
481bb76ff1Sjsg [I915_ENGINE_CLASS_VIDEO_ENHANCE] = "video-enhance",
491bb76ff1Sjsg [I915_ENGINE_CLASS_COMPUTE] = "compute",
501bb76ff1Sjsg };
511bb76ff1Sjsg
busy_add(struct i915_gem_context * ctx,unsigned int class)521bb76ff1Sjsg static u64 busy_add(struct i915_gem_context *ctx, unsigned int class)
531bb76ff1Sjsg {
541bb76ff1Sjsg struct i915_gem_engines_iter it;
551bb76ff1Sjsg struct intel_context *ce;
561bb76ff1Sjsg u64 total = 0;
571bb76ff1Sjsg
581bb76ff1Sjsg for_each_gem_engine(ce, rcu_dereference(ctx->engines), it) {
591bb76ff1Sjsg if (ce->engine->uabi_class != class)
601bb76ff1Sjsg continue;
611bb76ff1Sjsg
621bb76ff1Sjsg total += intel_context_get_total_runtime_ns(ce);
631bb76ff1Sjsg }
641bb76ff1Sjsg
651bb76ff1Sjsg return total;
661bb76ff1Sjsg }
671bb76ff1Sjsg
681bb76ff1Sjsg static void
show_client_class(struct drm_printer * p,struct drm_i915_private * i915,struct i915_drm_client * client,unsigned int class)69*f005ef32Sjsg show_client_class(struct drm_printer *p,
70*f005ef32Sjsg struct drm_i915_private *i915,
711bb76ff1Sjsg struct i915_drm_client *client,
721bb76ff1Sjsg unsigned int class)
731bb76ff1Sjsg {
74*f005ef32Sjsg const unsigned int capacity = i915->engine_uabi_class_count[class];
751bb76ff1Sjsg u64 total = atomic64_read(&client->past_runtime[class]);
761bb76ff1Sjsg struct i915_gem_context *ctx;
771bb76ff1Sjsg
781bb76ff1Sjsg rcu_read_lock();
79*f005ef32Sjsg list_for_each_entry_rcu(ctx, &client->ctx_list, client_link)
801bb76ff1Sjsg total += busy_add(ctx, class);
811bb76ff1Sjsg rcu_read_unlock();
821bb76ff1Sjsg
831bb76ff1Sjsg if (capacity)
84*f005ef32Sjsg drm_printf(p, "drm-engine-%s:\t%llu ns\n",
851bb76ff1Sjsg uabi_class_names[class], total);
861bb76ff1Sjsg
871bb76ff1Sjsg if (capacity > 1)
88*f005ef32Sjsg drm_printf(p, "drm-engine-capacity-%s:\t%u\n",
891bb76ff1Sjsg uabi_class_names[class],
901bb76ff1Sjsg capacity);
911bb76ff1Sjsg }
921bb76ff1Sjsg
i915_drm_client_fdinfo(struct drm_printer * p,struct drm_file * file)93*f005ef32Sjsg void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file)
941bb76ff1Sjsg {
951bb76ff1Sjsg struct drm_i915_file_private *file_priv = file->driver_priv;
96*f005ef32Sjsg struct drm_i915_private *i915 = file_priv->i915;
971bb76ff1Sjsg unsigned int i;
981bb76ff1Sjsg
991bb76ff1Sjsg /*
1001bb76ff1Sjsg * ******************************************************************
1011bb76ff1Sjsg * For text output format description please see drm-usage-stats.rst!
1021bb76ff1Sjsg * ******************************************************************
1031bb76ff1Sjsg */
1041bb76ff1Sjsg
105*f005ef32Sjsg if (GRAPHICS_VER(i915) < 8)
1061bb76ff1Sjsg return;
1071bb76ff1Sjsg
1081bb76ff1Sjsg for (i = 0; i < ARRAY_SIZE(uabi_class_names); i++)
109*f005ef32Sjsg show_client_class(p, i915, file_priv->client, i);
1101bb76ff1Sjsg }
1111bb76ff1Sjsg #endif
112