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d2fc439b SO |
1 | #ifndef _ASM_S390_EADM_H |
2 | #define _ASM_S390_EADM_H | |
3 | ||
4 | #include <linux/types.h> | |
1d1c8f78 | 5 | #include <linux/device.h> |
d2fc439b SO |
6 | |
7 | struct arqb { | |
8 | u64 data; | |
9 | u16 fmt:4; | |
10 | u16:12; | |
11 | u16 cmd_code; | |
12 | u16:16; | |
13 | u16 msb_count; | |
14 | u32 reserved[12]; | |
15 | } __packed; | |
16 | ||
17 | #define ARQB_CMD_MOVE 1 | |
18 | ||
19 | struct arsb { | |
20 | u16 fmt:4; | |
21 | u32:28; | |
22 | u8 ef; | |
23 | u8:8; | |
24 | u8 ecbi; | |
25 | u8:8; | |
26 | u8 fvf; | |
27 | u16:16; | |
28 | u8 eqc; | |
29 | u32:32; | |
30 | u64 fail_msb; | |
31 | u64 fail_aidaw; | |
32 | u64 fail_ms; | |
33 | u64 fail_scm; | |
34 | u32 reserved[4]; | |
35 | } __packed; | |
36 | ||
4fa3c019 SO |
37 | #define EQC_WR_PROHIBIT 22 |
38 | ||
d2fc439b SO |
39 | struct msb { |
40 | u8 fmt:4; | |
41 | u8 oc:4; | |
42 | u8 flags; | |
43 | u16:12; | |
44 | u16 bs:4; | |
45 | u32 blk_count; | |
46 | u64 data_addr; | |
47 | u64 scm_addr; | |
48 | u64:64; | |
49 | } __packed; | |
50 | ||
51 | struct aidaw { | |
52 | u8 flags; | |
53 | u32 :24; | |
54 | u32 :32; | |
55 | u64 data_addr; | |
56 | } __packed; | |
57 | ||
58 | #define MSB_OC_CLEAR 0 | |
59 | #define MSB_OC_READ 1 | |
60 | #define MSB_OC_WRITE 2 | |
61 | #define MSB_OC_RELEASE 3 | |
62 | ||
63 | #define MSB_FLAG_BNM 0x80 | |
64 | #define MSB_FLAG_IDA 0x40 | |
65 | ||
66 | #define MSB_BS_4K 0 | |
67 | #define MSB_BS_1M 1 | |
68 | ||
69 | #define AOB_NR_MSB 124 | |
70 | ||
71 | struct aob { | |
72 | struct arqb request; | |
73 | struct arsb response; | |
74 | struct msb msb[AOB_NR_MSB]; | |
75 | } __packed __aligned(PAGE_SIZE); | |
76 | ||
1d1c8f78 SO |
77 | struct aob_rq_header { |
78 | struct scm_device *scmdev; | |
79 | char data[0]; | |
80 | }; | |
81 | ||
82 | struct scm_device { | |
83 | u64 address; | |
84 | u64 size; | |
85 | unsigned int nr_max_block; | |
86 | struct device dev; | |
1d1c8f78 SO |
87 | struct { |
88 | unsigned int persistence:4; | |
89 | unsigned int oper_state:4; | |
90 | unsigned int data_state:4; | |
91 | unsigned int rank:4; | |
92 | unsigned int release:1; | |
93 | unsigned int res_id:8; | |
94 | } __packed attrs; | |
95 | }; | |
96 | ||
97 | #define OP_STATE_GOOD 1 | |
98 | #define OP_STATE_TEMP_ERR 2 | |
99 | #define OP_STATE_PERM_ERR 3 | |
100 | ||
aebfa669 | 101 | enum scm_event {SCM_CHANGE, SCM_AVAIL}; |
93481c90 | 102 | |
1d1c8f78 SO |
103 | struct scm_driver { |
104 | struct device_driver drv; | |
105 | int (*probe) (struct scm_device *scmdev); | |
106 | int (*remove) (struct scm_device *scmdev); | |
93481c90 | 107 | void (*notify) (struct scm_device *scmdev, enum scm_event event); |
1d1c8f78 SO |
108 | void (*handler) (struct scm_device *scmdev, void *data, int error); |
109 | }; | |
110 | ||
111 | int scm_driver_register(struct scm_driver *scmdrv); | |
112 | void scm_driver_unregister(struct scm_driver *scmdrv); | |
113 | ||
605c3698 | 114 | int eadm_start_aob(struct aob *aob); |
1d1c8f78 SO |
115 | void scm_irq_handler(struct aob *aob, int error); |
116 | ||
d2fc439b | 117 | #endif /* _ASM_S390_EADM_H */ |