xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/i915/i915_perf.h (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: i915_perf.h,v 1.2 2021/12/18 23:45:28 riastradh Exp $	*/
2 
3 /* SPDX-License-Identifier: MIT */
4 /*
5  * Copyright © 2019 Intel Corporation
6  */
7 
8 #ifndef __I915_PERF_H__
9 #define __I915_PERF_H__
10 
11 #include <linux/kref.h>
12 #include <linux/types.h>
13 
14 #include "i915_perf_types.h"
15 
16 struct drm_device;
17 struct drm_file;
18 struct drm_i915_private;
19 struct i915_oa_config;
20 struct intel_context;
21 struct intel_engine_cs;
22 
23 void i915_perf_init(struct drm_i915_private *i915);
24 void i915_perf_fini(struct drm_i915_private *i915);
25 void i915_perf_register(struct drm_i915_private *i915);
26 void i915_perf_unregister(struct drm_i915_private *i915);
27 int i915_perf_ioctl_version(void);
28 void i915_perf_sysctl_register(void);
29 void i915_perf_sysctl_unregister(void);
30 
31 int i915_perf_open_ioctl(struct drm_device *dev, void *data,
32 			 struct drm_file *file);
33 int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
34 			       struct drm_file *file);
35 int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
36 				  struct drm_file *file);
37 
38 void i915_oa_init_reg_state(const struct intel_context *ce,
39 			    const struct intel_engine_cs *engine);
40 
41 struct i915_oa_config *
42 i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set);
43 
44 static inline struct i915_oa_config *
i915_oa_config_get(struct i915_oa_config * oa_config)45 i915_oa_config_get(struct i915_oa_config *oa_config)
46 {
47 	if (kref_get_unless_zero(&oa_config->ref))
48 		return oa_config;
49 	else
50 		return NULL;
51 }
52 
53 void i915_oa_config_release(struct kref *ref);
i915_oa_config_put(struct i915_oa_config * oa_config)54 static inline void i915_oa_config_put(struct i915_oa_config *oa_config)
55 {
56 	if (!oa_config)
57 		return;
58 
59 	kref_put(&oa_config->ref, i915_oa_config_release);
60 }
61 
62 #endif /* __I915_PERF_H__ */
63