1 /***********************license start***************
2  * Copyright (c) 2011  Cavium Inc. ([email protected]). All rights
3  * reserved.
4  *
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  *   * Redistributions of source code must retain the above copyright
11  *     notice, this list of conditions and the following disclaimer.
12  *
13  *   * Redistributions in binary form must reproduce the above
14  *     copyright notice, this list of conditions and the following
15  *     disclaimer in the documentation and/or other materials provided
16  *     with the distribution.
17  *
18  *   * Neither the name of Cavium Inc. nor the names of
19  *     its contributors may be used to endorse or promote products
20  *     derived from this software without specific prior written
21  *     permission.
22  *
23  * This Software, including technical data, may be subject to U.S. export  control
24  * laws, including the U.S. Export Administration Act and its  associated
25  * regulations, and may be subject to export or import  regulations in other
26  * countries.
27  *
28  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
29  * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
30  * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
31  * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
32  * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
33  * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
34  * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
35  * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
36  * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
37  * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
38  *************************license end**************************************/
39 
40 /**
41  * @file
42  *
43  * Header file for the event Profiler.
44  *
45  */
46 
47 #ifndef __CVMX_PROFILER_H__
48 #define __CVMX_PROFILER_H__
49 
50 #ifdef  __cplusplus
51 extern "C" {
52 #endif
53 
54 #define EVENT_PERCPU_BUFFER_SIZE	8192
55 #define PADBYTES			24
56 
57 #define	EVENT_BUFFER_BLOCK		"event_block"
58 #define EVENT_BUFFER_SIZE		EVENT_PERCPU_BUFFER_SIZE * (cvmx_octeon_num_cores() + 1)
59 
60 #define EVENT_BUFFER_CONFIG_BLOCK	"event_config_block"
61 #define EBC_BLOCK_SIZE			256
62 
63 typedef struct {
64     int core;
65     uint32_t pc;
66 } cvmx_sample_entry_t;
67 
68 typedef struct cpu_event_block {
69     int size;
70     int sample_read;
71     int64_t max_samples;
72     int64_t sample_count;
73     char *head;
74     char *tail;
75     char *end;
76     char *data;
77 } cvmx_cpu_event_block_t;
78 
79 typedef struct {
80     cvmx_cpu_event_block_t pcpu_blk_info;
81     char *pcpu_data;
82 } cvmx_ringbuf_t;
83 
84 typedef struct config_block {
85     int64_t sample_count;
86     uint64_t events;
87     char *pcpu_base_addr[CVMX_MAX_CORES];
88 } cvmx_config_block_t;
89 
90 typedef struct event_counter_control_block {
91     int32_t read_cfg_blk;
92     char *config_blk_base_addr;
93     cvmx_config_block_t cfg_blk;
94 } event_counter_control_block_t;
95 
96 extern void cvmx_update_perfcnt_irq(void);
97 extern void cvmx_collect_sample(void);
98 
99 #ifdef  __cplusplus
100 }
101 #endif
102 
103 #endif	/*  __CVMX_PROFILER_H__ */
104