drm/i915/i915_perf.h

0001 /* SPDX-License-Identifier: MIT */
0002 /*
0003  * Copyright © 2019 Intel Corporation
0004  */
0005
0006 #ifndef __I915_PERF_H__
0007 #define __I915_PERF_H__
0008
0009 #include <linux/kref.h>
0010 #include <linux/types.h>
0011
0012 #include "i915_perf_types.h"
0013
0014 struct drm_device;
0015 struct drm_file;
0016 struct drm_i915_private;
0017 struct i915_oa_config;
0018 struct intel_context;
0019 struct intel_engine_cs;
0020
0021 void i915_perf_init(struct drm_i915_private *i915);
0022 void i915_perf_fini(struct drm_i915_private *i915);
0023 void i915_perf_register(struct drm_i915_private *i915);
0024 void i915_perf_unregister(struct drm_i915_private *i915);
0025 int i915_perf_ioctl_version(void);
0026 int i915_perf_sysctl_register(void);
0027 void i915_perf_sysctl_unregister(void);
0028
0029 int i915_perf_open_ioctl(struct drm_device *dev, void *data,
0030              struct drm_file *file);
0031 int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
0032                    struct drm_file *file);
0033 int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
0034                   struct drm_file *file);
0035
0036 void i915_oa_init_reg_state(const struct intel_context *ce,
0037                 const struct intel_engine_cs *engine);
0038
0039 struct i915_oa_config *
0040 i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set);
0041
0042 static inline struct i915_oa_config *
0043 i915_oa_config_get(struct i915_oa_config *oa_config)
0044 {
0045     if (kref_get_unless_zero(&oa_config->ref))
0046         return oa_config;
0047     else
0048         return NULL;
0049 }
0050
0051 void i915_oa_config_release(struct kref *ref);
0052 static inline void i915_oa_config_put(struct i915_oa_config *oa_config)
0053 {
0054     if (!oa_config)
0055         return;
0056
0057     kref_put(&oa_config->ref, i915_oa_config_release);
0058 }
0059
0060 #endif /* __I915_PERF_H__ */