drivers/gpu/drm/i915/i915_perf.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2019 Intel Corporation
   4  */
   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
  14 struct drm_device;
  15 struct drm_file;
  16 struct drm_i915_private;
  17 struct i915_oa_config;
  18 struct intel_context;
  19 struct intel_engine_cs;
  20
  21 void i915_perf_init(struct drm_i915_private *i915);
  22 void i915_perf_fini(struct drm_i915_private *i915);
  23 void i915_perf_register(struct drm_i915_private *i915);
  24 void i915_perf_unregister(struct drm_i915_private *i915);
  25 int i915_perf_ioctl_version(void);
  26 void i915_perf_sysctl_register(void);
  27 void i915_perf_sysctl_unregister(void);
  28
  29 int i915_perf_open_ioctl(struct drm_device *dev, void *data,
  30                          struct drm_file *file);
  31 int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  32                                struct drm_file *file);
  33 int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
  34                                   struct drm_file *file);
  35
  36 void i915_oa_init_reg_state(const struct intel_context *ce,
  37                             const struct intel_engine_cs *engine);
  38
  39 struct i915_oa_config *
  40 i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set);
  41
  42 static inline struct i915_oa_config *
  43 i915_oa_config_get(struct i915_oa_config *oa_config)
  44 {
  45         if (kref_get_unless_zero(&oa_config->ref))
  46                 return oa_config;
  47         else
  48                 return NULL;
  49 }
  50
  51 void i915_oa_config_release(struct kref *ref);
  52 static 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
  60 #endif /* __I915_PERF_H__ */