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[S390] pm: css bus power management callbacks
[net-next-2.6.git] / drivers / s390 / cio / chsc.h
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1da177e4
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1#ifndef S390_CHSC_H
2#define S390_CHSC_H
3
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4#include <linux/types.h>
5#include <linux/device.h>
e5854a58 6#include <asm/chpid.h>
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7#include <asm/chsc.h>
8#include <asm/schid.h>
f86635fa 9
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10#define CHSC_SDA_OC_MSS 0x2
11
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12struct chsc_header {
13 u16 length;
14 u16 code;
0f008aa3 15} __attribute__ ((packed));
1da177e4 16
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17#define NR_MEASUREMENT_CHARS 5
18struct cmg_chars {
19 u32 values[NR_MEASUREMENT_CHARS];
0f008aa3 20} __attribute__ ((packed));
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21
22#define NR_MEASUREMENT_ENTRIES 8
23struct cmg_entry {
24 u32 values[NR_MEASUREMENT_ENTRIES];
0f008aa3 25} __attribute__ ((packed));
495a5b45 26
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27struct channel_path_desc {
28 u8 flags;
29 u8 lsn;
30 u8 desc;
31 u8 chpid;
32 u8 swla;
33 u8 zeroes;
34 u8 chla;
35 u8 chpp;
0f008aa3 36} __attribute__ ((packed));
1da177e4 37
e6b6e10a 38struct channel_path;
1da177e4 39
1da177e4 40struct css_general_char {
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41 u64 : 12;
42 u32 dynio : 1; /* bit 12 */
43 u32 : 28;
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44 u32 aif : 1; /* bit 41 */
45 u32 : 3;
46 u32 mcss : 1; /* bit 45 */
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47 u32 fcs : 1; /* bit 46 */
48 u32 : 1;
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49 u32 ext_mb : 1; /* bit 48 */
50 u32 : 7;
51 u32 aif_tdd : 1; /* bit 56 */
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52 u32 : 1;
53 u32 qebsm : 1; /* bit 58 */
54 u32 : 8;
1da177e4 55 u32 aif_osa : 1; /* bit 67 */
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56 u32 : 14;
57 u32 cib : 1; /* bit 82 */
58 u32 : 5;
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59 u32 fcx : 1; /* bit 88 */
60 u32 : 7;
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61}__attribute__((packed));
62
63struct css_chsc_char {
64 u64 res;
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CH
65 u64 : 20;
66 u32 secm : 1; /* bit 84 */
67 u32 : 1;
68 u32 scmc : 1; /* bit 86 */
69 u32 : 20;
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70 u32 scssc : 1; /* bit 107 */
71 u32 scsscf : 1; /* bit 108 */
72 u32 : 19;
73}__attribute__((packed));
74
75extern struct css_general_char css_general_characteristics;
76extern struct css_chsc_char css_chsc_characteristics;
77
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78struct chsc_ssd_info {
79 u8 path_mask;
80 u8 fla_valid_mask;
81 struct chp_id chpid[8];
82 u16 fla[8];
83};
84extern int chsc_get_ssd_info(struct subchannel_id schid,
85 struct chsc_ssd_info *ssd);
1da177e4 86extern int chsc_determine_css_characteristics(void);
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87extern int chsc_alloc_sei_area(void);
88extern void chsc_free_sei_area(void);
1da177e4 89
fb6958a5 90extern int chsc_enable_facility(int);
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91struct channel_subsystem;
92extern int chsc_secm(struct channel_subsystem *, int);
dcbd16d5 93int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page);
fb6958a5 94
e6b6e10a 95int chsc_chp_vary(struct chp_id chpid, int on);
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96int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
97 int c, int m,
98 struct chsc_response_struct *resp);
99int chsc_determine_base_channel_path_desc(struct chp_id chpid,
100 struct channel_path_desc *desc);
83b3370c 101void chsc_chp_online(struct chp_id chpid);
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102void chsc_chp_offline(struct chp_id chpid);
103int chsc_get_channel_measurement_chars(struct channel_path *chp);
a28c6944 104
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105int chsc_error_from_response(int response);
106
1da177e4 107#endif