xref: /openbmc/linux/drivers/gpu/drm/i915/i915_perf.h (revision 2b77dcc5)
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 
27 int i915_perf_open_ioctl(struct drm_device *dev, void *data,
28 			 struct drm_file *file);
29 int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
30 			       struct drm_file *file);
31 int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
32 				  struct drm_file *file);
33 
34 void i915_oa_init_reg_state(const struct intel_context *ce,
35 			    const struct intel_engine_cs *engine);
36 
37 struct i915_oa_config *
38 i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set);
39 
40 static inline struct i915_oa_config *
41 i915_oa_config_get(struct i915_oa_config *oa_config)
42 {
43 	if (kref_get_unless_zero(&oa_config->ref))
44 		return oa_config;
45 	else
46 		return NULL;
47 }
48 
49 void i915_oa_config_release(struct kref *ref);
50 static inline void i915_oa_config_put(struct i915_oa_config *oa_config)
51 {
52 	if (!oa_config)
53 		return;
54 
55 	kref_put(&oa_config->ref, i915_oa_config_release);
56 }
57 
58 #endif /* __I915_PERF_H__ */
59