[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / s390 / cio / chsc.h

#ifndef S390_CHSC_H
#define S390_CHSC_H

#include <linux/types.h>
#include <linux/device.h>
#include <asm/css_chars.h>
#include <asm/chpid.h>
#include <asm/chsc.h>
#include <asm/schid.h>

#define CHSC_SDA_OC_MSS   0x2

struct chsc_header {
	u16 length;
	u16 code;
} __attribute__ ((packed));

#define NR_MEASUREMENT_CHARS 5
struct cmg_chars {
	u32 values[NR_MEASUREMENT_CHARS];
} __attribute__ ((packed));

#define NR_MEASUREMENT_ENTRIES 8
struct cmg_entry {
	u32 values[NR_MEASUREMENT_ENTRIES];
} __attribute__ ((packed));

struct channel_path_desc {
	u8 flags;
	u8 lsn;
	u8 desc;
	u8 chpid;
	u8 swla;
	u8 zeroes;
	u8 chla;
	u8 chpp;
} __attribute__ ((packed));

struct channel_path_desc_fmt1 {
	u8 flags;
	u8 lsn;
	u8 desc;
	u8 chpid;
	u32:24;
	u8 chpp;
	u32 unused[2];
	u16 chid;
	u32:16;
	u16 mdc;
	u16:13;
	u8 r:1;
	u8 s:1;
	u8 f:1;
	u32 zeros[2];
} __attribute__ ((packed));

struct channel_path;

struct css_chsc_char {
	u64 res;
	u64 : 20;
	u32 secm : 1; /* bit 84 */
	u32 : 1;
	u32 scmc : 1; /* bit 86 */
	u32 : 20;
	u32 scssc : 1;  /* bit 107 */
	u32 scsscf : 1; /* bit 108 */
	u32 : 19;
}__attribute__((packed));

extern struct css_chsc_char css_chsc_characteristics;

struct chsc_ssd_info {
	u8 path_mask;
	u8 fla_valid_mask;
	struct chp_id chpid[8];
	u16 fla[8];
};

struct chsc_scpd {
	struct chsc_header request;
	u32:2;
	u32 m:1;
	u32 c:1;
	u32 fmt:4;
	u32 cssid:8;
	u32:4;
	u32 rfmt:4;
	u32 first_chpid:8;
	u32:24;
	u32 last_chpid:8;
	u32 zeroes1;
	struct chsc_header response;
	u8 data[PAGE_SIZE - 20];
} __attribute__ ((packed));


extern int chsc_get_ssd_info(struct subchannel_id schid,
			     struct chsc_ssd_info *ssd);
extern int chsc_determine_css_characteristics(void);
extern int chsc_init(void);
extern void chsc_init_cleanup(void);

extern int chsc_enable_facility(int);
struct channel_subsystem;
extern int chsc_secm(struct channel_subsystem *, int);
int __chsc_do_secm(struct channel_subsystem *css, int enable);

int chsc_chp_vary(struct chp_id chpid, int on);
int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
				     int c, int m, void *page);
int chsc_determine_base_channel_path_desc(struct chp_id chpid,
					  struct channel_path_desc *desc);
int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
					  struct channel_path_desc_fmt1 *desc);
void chsc_chp_online(struct chp_id chpid);
void chsc_chp_offline(struct chp_id chpid);
int chsc_get_channel_measurement_chars(struct channel_path *chp);

int chsc_error_from_response(int response);

int chsc_siosl(struct subchannel_id schid);

/* Functions and definitions to query storage-class memory. */
struct sale {
	u64 sa;
	u32 p:4;
	u32 op_state:4;
	u32 data_state:4;
	u32 rank:4;
	u32 r:1;
	u32:7;
	u32 rid:8;
	u32:32;
} __packed;

struct chsc_scm_info {
	struct chsc_header request;
	u32:32;
	u64 reqtok;
	u32 reserved1[4];
	struct chsc_header response;
	u64:56;
	u8 rq;
	u32 mbc;
	u64 msa;
	u16 is;
	u16 mmc;
	u32 mci;
	u64 nr_scm_ini;
	u64 nr_scm_unini;
	u32 reserved2[10];
	u64 restok;
	struct sale scmal[248];
} __packed;

int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);

#ifdef CONFIG_SCM_BUS
int scm_update_information(void);
int scm_process_availability_information(void);
#else /* CONFIG_SCM_BUS */
static inline int scm_update_information(void) { return 0; }
static inline int scm_process_availability_information(void) { return 0; }
#endif /* CONFIG_SCM_BUS */


#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef S390_CHSC_H
	2	#define S390_CHSC_H
	3
f86635fa PO	4	#include <linux/types.h>
f86635fa PO	5	#include <linux/device.h>
382b7366	6	#include <asm/css_chars.h>
e5854a58	7	#include <asm/chpid.h>
9d92a7e1 CH	8	#include <asm/chsc.h>
9d92a7e1 CH	9	#include <asm/schid.h>
f86635fa	10
fb6958a5 CH	11	#define CHSC_SDA_OC_MSS 0x2
fb6958a5 CH	12
1da177e4 LT	13	struct chsc_header {
	14	u16 length;
	15	u16 code;
0f008aa3	16	} __attribute__ ((packed));
1da177e4	17
495a5b45 CH	18	#define NR_MEASUREMENT_CHARS 5
	19	struct cmg_chars {
	20	u32 values[NR_MEASUREMENT_CHARS];
0f008aa3	21	} __attribute__ ((packed));
495a5b45 CH	22
	23	#define NR_MEASUREMENT_ENTRIES 8
	24	struct cmg_entry {
	25	u32 values[NR_MEASUREMENT_ENTRIES];
0f008aa3	26	} __attribute__ ((packed));
495a5b45	27
1da177e4 LT	28	struct channel_path_desc {
	29	u8 flags;
	30	u8 lsn;
	31	u8 desc;
	32	u8 chpid;
	33	u8 swla;
	34	u8 zeroes;
	35	u8 chla;
	36	u8 chpp;
0f008aa3	37	} __attribute__ ((packed));
1da177e4	38
ce322ccd SO	39	struct channel_path_desc_fmt1 {
	40	u8 flags;
	41	u8 lsn;
	42	u8 desc;
	43	u8 chpid;
	44	u32:24;
	45	u8 chpp;
ba54229d PO	46	u32 unused[2];
	47	u16 chid;
	48	u32:16;
ce322ccd SO	49	u16 mdc;
	50	u16:13;
	51	u8 r:1;
	52	u8 s:1;
	53	u8 f:1;
	54	u32 zeros[2];
	55	} __attribute__ ((packed));
	56
e6b6e10a	57	struct channel_path;
1da177e4	58
1da177e4 LT	59	struct css_chsc_char {
1da177e4 LT	60	u64 res;
495a5b45 CH	61	u64 : 20;
	62	u32 secm : 1; /* bit 84 */
	63	u32 : 1;
	64	u32 scmc : 1; /* bit 86 */
	65	u32 : 20;
1da177e4 LT	66	u32 scssc : 1; /* bit 107 */
	67	u32 scsscf : 1; /* bit 108 */
	68	u32 : 19;
	69	}__attribute__((packed));
	70
1da177e4 LT	71	extern struct css_chsc_char css_chsc_characteristics;
1da177e4 LT	72
7ad6a249 PO	73	struct chsc_ssd_info {
	74	u8 path_mask;
	75	u8 fla_valid_mask;
	76	struct chp_id chpid[8];
	77	u16 fla[8];
	78	};
906c9768 SO	79
	80	struct chsc_scpd {
	81	struct chsc_header request;
	82	u32:2;
	83	u32 m:1;
	84	u32 c:1;
	85	u32 fmt:4;
	86	u32 cssid:8;
	87	u32:4;
	88	u32 rfmt:4;
	89	u32 first_chpid:8;
	90	u32:24;
	91	u32 last_chpid:8;
	92	u32 zeroes1;
	93	struct chsc_header response;
	94	u8 data[PAGE_SIZE - 20];
	95	} __attribute__ ((packed));
	96
	97
7ad6a249 PO	98	extern int chsc_get_ssd_info(struct subchannel_id schid,
7ad6a249 PO	99	struct chsc_ssd_info *ssd);
1da177e4	100	extern int chsc_determine_css_characteristics(void);
34aec07c SO	101	extern int chsc_init(void);
34aec07c SO	102	extern void chsc_init_cleanup(void);
1da177e4	103
fb6958a5	104	extern int chsc_enable_facility(int);
495a5b45 CH	105	struct channel_subsystem;
495a5b45 CH	106	extern int chsc_secm(struct channel_subsystem *, int);
34196f82	107	int __chsc_do_secm(struct channel_subsystem *css, int enable);
fb6958a5	108
e6b6e10a	109	int chsc_chp_vary(struct chp_id chpid, int on);
9d92a7e1	110	int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
906c9768	111	int c, int m, void *page);
9d92a7e1 CH	112	int chsc_determine_base_channel_path_desc(struct chp_id chpid,
9d92a7e1 CH	113	struct channel_path_desc *desc);
ce322ccd SO	114	int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
ce322ccd SO	115	struct channel_path_desc_fmt1 *desc);
83b3370c	116	void chsc_chp_online(struct chp_id chpid);
e6b6e10a PO	117	void chsc_chp_offline(struct chp_id chpid);
e6b6e10a PO	118	int chsc_get_channel_measurement_chars(struct channel_path *chp);
a28c6944	119
dae39843 CH	120	int chsc_error_from_response(int response);
dae39843 CH	121
fd0457a6 ME	122	int chsc_siosl(struct subchannel_id schid);
fd0457a6 ME	123
184b08af SO	124	/* Functions and definitions to query storage-class memory. */
	125	struct sale {
	126	u64 sa;
	127	u32 p:4;
	128	u32 op_state:4;
	129	u32 data_state:4;
	130	u32 rank:4;
	131	u32 r:1;
	132	u32:7;
	133	u32 rid:8;
	134	u32:32;
	135	} __packed;
	136
	137	struct chsc_scm_info {
	138	struct chsc_header request;
	139	u32:32;
	140	u64 reqtok;
	141	u32 reserved1[4];
	142	struct chsc_header response;
	143	u64:56;
	144	u8 rq;
	145	u32 mbc;
	146	u64 msa;
	147	u16 is;
	148	u16 mmc;
	149	u32 mci;
	150	u64 nr_scm_ini;
	151	u64 nr_scm_unini;
	152	u32 reserved2[10];
	153	u64 restok;
	154	struct sale scmal[248];
	155	} __packed;
	156
	157	int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
	158
40ff4cc0 SO	159	#ifdef CONFIG_SCM_BUS
40ff4cc0 SO	160	int scm_update_information(void);
aebfa669	161	int scm_process_availability_information(void);
40ff4cc0	162	#else /* CONFIG_SCM_BUS */
58fece78	163	static inline int scm_update_information(void) { return 0; }
aebfa669	164	static inline int scm_process_availability_information(void) { return 0; }
40ff4cc0 SO	165	#endif /* CONFIG_SCM_BUS */
	166
	167
1da177e4	168	#endif