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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2019 Intel Corporation4 */5 6#ifndef __I915_PERF_H__7#define __I915_PERF_H__8 9#include <linux/kref.h>10#include <linux/types.h>11 12#include "i915_perf_types.h"13 14struct drm_device;15struct drm_file;16struct drm_i915_private;17struct i915_oa_config;18struct intel_context;19struct intel_engine_cs;20 21int i915_perf_init(struct drm_i915_private *i915);22void i915_perf_fini(struct drm_i915_private *i915);23void i915_perf_register(struct drm_i915_private *i915);24void i915_perf_unregister(struct drm_i915_private *i915);25int i915_perf_ioctl_version(struct drm_i915_private *i915);26int i915_perf_sysctl_register(void);27void i915_perf_sysctl_unregister(void);28 29int i915_perf_open_ioctl(struct drm_device *dev, void *data,30 struct drm_file *file);31int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,32 struct drm_file *file);33int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,34 struct drm_file *file);35 36void i915_oa_init_reg_state(const struct intel_context *ce,37 const struct intel_engine_cs *engine);38 39struct i915_oa_config *40i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set);41 42static inline struct i915_oa_config *43i915_oa_config_get(struct i915_oa_config *oa_config)44{45 if (kref_get_unless_zero(&oa_config->ref))46 return oa_config;47 else48 return NULL;49}50 51void i915_oa_config_release(struct kref *ref);52static inline void i915_oa_config_put(struct i915_oa_config *oa_config)53{54 if (!oa_config)55 return;56 57 kref_put(&oa_config->ref, i915_oa_config_release);58}59 60u32 i915_perf_oa_timestamp_frequency(struct drm_i915_private *i915);61 62#endif /* __I915_PERF_H__ */63