mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 19:55:05 +07:00
aebfa669d9
Let the bus code process scm availability information and notify scm device drivers about the new state. Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
129 lines
2.2 KiB
C
129 lines
2.2 KiB
C
#ifndef _ASM_S390_EADM_H
|
|
#define _ASM_S390_EADM_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/device.h>
|
|
|
|
struct arqb {
|
|
u64 data;
|
|
u16 fmt:4;
|
|
u16:12;
|
|
u16 cmd_code;
|
|
u16:16;
|
|
u16 msb_count;
|
|
u32 reserved[12];
|
|
} __packed;
|
|
|
|
#define ARQB_CMD_MOVE 1
|
|
|
|
struct arsb {
|
|
u16 fmt:4;
|
|
u32:28;
|
|
u8 ef;
|
|
u8:8;
|
|
u8 ecbi;
|
|
u8:8;
|
|
u8 fvf;
|
|
u16:16;
|
|
u8 eqc;
|
|
u32:32;
|
|
u64 fail_msb;
|
|
u64 fail_aidaw;
|
|
u64 fail_ms;
|
|
u64 fail_scm;
|
|
u32 reserved[4];
|
|
} __packed;
|
|
|
|
#define EQC_WR_PROHIBIT 22
|
|
|
|
struct msb {
|
|
u8 fmt:4;
|
|
u8 oc:4;
|
|
u8 flags;
|
|
u16:12;
|
|
u16 bs:4;
|
|
u32 blk_count;
|
|
u64 data_addr;
|
|
u64 scm_addr;
|
|
u64:64;
|
|
} __packed;
|
|
|
|
struct aidaw {
|
|
u8 flags;
|
|
u32 :24;
|
|
u32 :32;
|
|
u64 data_addr;
|
|
} __packed;
|
|
|
|
#define MSB_OC_CLEAR 0
|
|
#define MSB_OC_READ 1
|
|
#define MSB_OC_WRITE 2
|
|
#define MSB_OC_RELEASE 3
|
|
|
|
#define MSB_FLAG_BNM 0x80
|
|
#define MSB_FLAG_IDA 0x40
|
|
|
|
#define MSB_BS_4K 0
|
|
#define MSB_BS_1M 1
|
|
|
|
#define AOB_NR_MSB 124
|
|
|
|
struct aob {
|
|
struct arqb request;
|
|
struct arsb response;
|
|
struct msb msb[AOB_NR_MSB];
|
|
} __packed __aligned(PAGE_SIZE);
|
|
|
|
struct aob_rq_header {
|
|
struct scm_device *scmdev;
|
|
char data[0];
|
|
};
|
|
|
|
struct scm_device {
|
|
u64 address;
|
|
u64 size;
|
|
unsigned int nr_max_block;
|
|
struct device dev;
|
|
struct {
|
|
unsigned int persistence:4;
|
|
unsigned int oper_state:4;
|
|
unsigned int data_state:4;
|
|
unsigned int rank:4;
|
|
unsigned int release:1;
|
|
unsigned int res_id:8;
|
|
} __packed attrs;
|
|
};
|
|
|
|
#define OP_STATE_GOOD 1
|
|
#define OP_STATE_TEMP_ERR 2
|
|
#define OP_STATE_PERM_ERR 3
|
|
|
|
enum scm_event {SCM_CHANGE, SCM_AVAIL};
|
|
|
|
struct scm_driver {
|
|
struct device_driver drv;
|
|
int (*probe) (struct scm_device *scmdev);
|
|
int (*remove) (struct scm_device *scmdev);
|
|
void (*notify) (struct scm_device *scmdev, enum scm_event event);
|
|
void (*handler) (struct scm_device *scmdev, void *data, int error);
|
|
};
|
|
|
|
int scm_driver_register(struct scm_driver *scmdrv);
|
|
void scm_driver_unregister(struct scm_driver *scmdrv);
|
|
|
|
int scm_start_aob(struct aob *aob);
|
|
void scm_irq_handler(struct aob *aob, int error);
|
|
|
|
struct eadm_ops {
|
|
int (*eadm_start) (struct aob *aob);
|
|
struct module *owner;
|
|
};
|
|
|
|
int scm_get_ref(void);
|
|
void scm_put_ref(void);
|
|
|
|
void register_eadm_ops(struct eadm_ops *ops);
|
|
void unregister_eadm_ops(struct eadm_ops *ops);
|
|
|
|
#endif /* _ASM_S390_EADM_H */
|