1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright IBM Corp. 2008
4 *
5 * Author: Jan Glauber (jang@linux.vnet.ibm.com)
6 */
7 #ifndef QDIO_DEBUG_H
8 #define QDIO_DEBUG_H
9
10 #include <asm/debug.h>
11 #include <asm/qdio.h>
12 #include "qdio.h"
13
14 /* that gives us 15 characters in the text event views */
15 #define QDIO_DBF_LEN 32
16
17 extern debug_info_t *qdio_dbf_setup;
18 extern debug_info_t *qdio_dbf_error;
19
20 #define DBF_ERR 3 /* error conditions */
21 #define DBF_WARN 4 /* warning conditions */
22 #define DBF_INFO 6 /* informational */
23
24 #undef DBF_EVENT
25 #undef DBF_ERROR
26 #undef DBF_DEV_EVENT
27
28 #define DBF_EVENT(text...) \
29 do { \
30 char debug_buffer[QDIO_DBF_LEN]; \
31 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
32 debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
33 } while (0)
34
DBF_HEX(void * addr,int len)35 static inline void DBF_HEX(void *addr, int len)
36 {
37 while (len > 0) {
38 debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
39 len -= qdio_dbf_setup->buf_size;
40 addr += qdio_dbf_setup->buf_size;
41 }
42 }
43
44 #define DBF_ERROR(text...) \
45 do { \
46 char debug_buffer[QDIO_DBF_LEN]; \
47 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
48 debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
49 } while (0)
50
DBF_ERROR_HEX(void * addr,int len)51 static inline void DBF_ERROR_HEX(void *addr, int len)
52 {
53 while (len > 0) {
54 debug_event(qdio_dbf_error, DBF_ERR, addr, len);
55 len -= qdio_dbf_error->buf_size;
56 addr += qdio_dbf_error->buf_size;
57 }
58 }
59
60 #define DBF_DEV_EVENT(level, device, text...) \
61 do { \
62 char debug_buffer[QDIO_DBF_LEN]; \
63 if (debug_level_enabled(device->debug_area, level)) { \
64 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
65 debug_text_event(device->debug_area, level, debug_buffer); \
66 } \
67 } while (0)
68
DBF_DEV_HEX(struct qdio_irq * dev,void * addr,int len,int level)69 static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
70 int len, int level)
71 {
72 while (len > 0) {
73 debug_event(dev->debug_area, level, addr, len);
74 len -= dev->debug_area->buf_size;
75 addr += dev->debug_area->buf_size;
76 }
77 }
78
79 int qdio_allocate_dbf(struct qdio_initialize *init_data,
80 struct qdio_irq *irq_ptr);
81 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
82 struct ccw_device *cdev);
83 void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr);
84 int qdio_debug_init(void);
85 void qdio_debug_exit(void);
86
87 #endif
88