[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[3];
	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);
#else /* CONFIG_SCM_BUS */
static inline int scm_update_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;
	46	u32 unused[3];
	47	u16 mdc;
	48	u16:13;
	49	u8 r:1;
	50	u8 s:1;
	51	u8 f:1;
	52	u32 zeros[2];
	53	} __attribute__ ((packed));
	54
e6b6e10a	55	struct channel_path;
1da177e4	56
1da177e4 LT	57	struct css_chsc_char {
1da177e4 LT	58	u64 res;
495a5b45 CH	59	u64 : 20;
	60	u32 secm : 1; /* bit 84 */
	61	u32 : 1;
	62	u32 scmc : 1; /* bit 86 */
	63	u32 : 20;
1da177e4 LT	64	u32 scssc : 1; /* bit 107 */
	65	u32 scsscf : 1; /* bit 108 */
	66	u32 : 19;
	67	}__attribute__((packed));
	68
1da177e4 LT	69	extern struct css_chsc_char css_chsc_characteristics;
1da177e4 LT	70
7ad6a249 PO	71	struct chsc_ssd_info {
	72	u8 path_mask;
	73	u8 fla_valid_mask;
	74	struct chp_id chpid[8];
	75	u16 fla[8];
	76	};
906c9768 SO	77
	78	struct chsc_scpd {
	79	struct chsc_header request;
	80	u32:2;
	81	u32 m:1;
	82	u32 c:1;
	83	u32 fmt:4;
	84	u32 cssid:8;
	85	u32:4;
	86	u32 rfmt:4;
	87	u32 first_chpid:8;
	88	u32:24;
	89	u32 last_chpid:8;
	90	u32 zeroes1;
	91	struct chsc_header response;
	92	u8 data[PAGE_SIZE - 20];
	93	} __attribute__ ((packed));
	94
	95
7ad6a249 PO	96	extern int chsc_get_ssd_info(struct subchannel_id schid,
7ad6a249 PO	97	struct chsc_ssd_info *ssd);
1da177e4	98	extern int chsc_determine_css_characteristics(void);
34aec07c SO	99	extern int chsc_init(void);
34aec07c SO	100	extern void chsc_init_cleanup(void);
1da177e4	101
fb6958a5	102	extern int chsc_enable_facility(int);
495a5b45 CH	103	struct channel_subsystem;
495a5b45 CH	104	extern int chsc_secm(struct channel_subsystem *, int);
34196f82	105	int __chsc_do_secm(struct channel_subsystem *css, int enable);
fb6958a5	106
e6b6e10a	107	int chsc_chp_vary(struct chp_id chpid, int on);
9d92a7e1	108	int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
906c9768	109	int c, int m, void *page);
9d92a7e1 CH	110	int chsc_determine_base_channel_path_desc(struct chp_id chpid,
9d92a7e1 CH	111	struct channel_path_desc *desc);
ce322ccd SO	112	int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
ce322ccd SO	113	struct channel_path_desc_fmt1 *desc);
83b3370c	114	void chsc_chp_online(struct chp_id chpid);
e6b6e10a PO	115	void chsc_chp_offline(struct chp_id chpid);
e6b6e10a PO	116	int chsc_get_channel_measurement_chars(struct channel_path *chp);
a28c6944	117
dae39843 CH	118	int chsc_error_from_response(int response);
dae39843 CH	119
fd0457a6 ME	120	int chsc_siosl(struct subchannel_id schid);
fd0457a6 ME	121
184b08af SO	122	/* Functions and definitions to query storage-class memory. */
	123	struct sale {
	124	u64 sa;
	125	u32 p:4;
	126	u32 op_state:4;
	127	u32 data_state:4;
	128	u32 rank:4;
	129	u32 r:1;
	130	u32:7;
	131	u32 rid:8;
	132	u32:32;
	133	} __packed;
	134
	135	struct chsc_scm_info {
	136	struct chsc_header request;
	137	u32:32;
	138	u64 reqtok;
	139	u32 reserved1[4];
	140	struct chsc_header response;
	141	u64:56;
	142	u8 rq;
	143	u32 mbc;
	144	u64 msa;
	145	u16 is;
	146	u16 mmc;
	147	u32 mci;
	148	u64 nr_scm_ini;
	149	u64 nr_scm_unini;
	150	u32 reserved2[10];
	151	u64 restok;
	152	struct sale scmal[248];
	153	} __packed;
	154
	155	int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
	156
40ff4cc0 SO	157	#ifdef CONFIG_SCM_BUS
	158	int scm_update_information(void);
	159	#else /* CONFIG_SCM_BUS */
58fece78	160	static inline int scm_update_information(void) { return 0; }
40ff4cc0 SO	161	#endif /* CONFIG_SCM_BUS */
	162
	163
1da177e4	164	#endif