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linux/arch/s390/include/asm/diag.h
Heiko Carstens c83cd4fe31 s390/diag: handle diag 204 subcode 4 address correctly 
Diagnose 204 subcode 4 requires a real (physical) address, but a
virtual address is passed to the inline assembly.

Convert the address to a physical address for only this specific case.

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-07-24 12:12:21 +02:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* s390 diagnose functions
*
* Copyright IBM Corp. 2007
* Author(s): Michael Holzheu <holzheu@de.ibm.com>
*/
#ifndef _ASM_S390_DIAG_H
#define _ASM_S390_DIAG_H
#include <linux/if_ether.h>
#include <linux/percpu.h>
#include <asm/asm-extable.h>
#include <asm/cio.h>
enum diag_stat_enum {
DIAG_STAT_X008,
DIAG_STAT_X00C,
DIAG_STAT_X010,
DIAG_STAT_X014,
DIAG_STAT_X044,
DIAG_STAT_X064,
DIAG_STAT_X08C,
DIAG_STAT_X09C,
DIAG_STAT_X0DC,
DIAG_STAT_X204,
DIAG_STAT_X210,
DIAG_STAT_X224,
DIAG_STAT_X250,
DIAG_STAT_X258,
DIAG_STAT_X26C,
DIAG_STAT_X288,
DIAG_STAT_X2C4,
DIAG_STAT_X2FC,
DIAG_STAT_X304,
DIAG_STAT_X308,
DIAG_STAT_X318,
DIAG_STAT_X320,
DIAG_STAT_X500,
NR_DIAG_STAT
};
void diag_stat_inc(enum diag_stat_enum nr);
void diag_stat_inc_norecursion(enum diag_stat_enum nr);
/*
* Diagnose 10: Release page range
*/
static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
{
unsigned long start_addr, end_addr;
start_addr = pfn_to_phys(start_pfn);
end_addr = pfn_to_phys(start_pfn + num_pfn - 1);
diag_stat_inc(DIAG_STAT_X010);
asm volatile(
"0: diag %0,%1,0x10\n"
"1: nopr %%r7\n"
EX_TABLE(0b, 1b)
EX_TABLE(1b, 1b)
: : "a" (start_addr), "a" (end_addr));
}
/*
* Diagnose 14: Input spool file manipulation
*/
extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
/*
* Diagnose 210: Get information about a virtual device
*/
struct diag210 {
u16 vrdcdvno; /* device number (input) */
u16 vrdclen; /* data block length (input) */
u8 vrdcvcla; /* virtual device class (output) */
u8 vrdcvtyp; /* virtual device type (output) */
u8 vrdcvsta; /* virtual device status (output) */
u8 vrdcvfla; /* virtual device flags (output) */
u8 vrdcrccl; /* real device class (output) */
u8 vrdccrty; /* real device type (output) */
u8 vrdccrmd; /* real device model (output) */
u8 vrdccrft; /* real device feature (output) */
} __packed __aligned(4);
extern int diag210(struct diag210 *addr);
struct diag8c {
u8 flags;
u8 num_partitions;
u16 width;
u16 height;
u8 data[];
} __packed __aligned(4);
extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno);
/* bit is set in flags, when physical cpu info is included in diag 204 data */
#define DIAG204_LPAR_PHYS_FLG 0x80
#define DIAG204_LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */
#define DIAG204_CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */
/* diag 204 subcodes */
enum diag204_sc {
DIAG204_SUBC_STIB4 = 4,
DIAG204_SUBC_RSI = 5,
DIAG204_SUBC_STIB6 = 6,
DIAG204_SUBC_STIB7 = 7
};
#define DIAG204_SUBCODE_MASK 0xffff
/* The two available diag 204 data formats */
enum diag204_format {
DIAG204_INFO_SIMPLE = 0,
DIAG204_INFO_EXT = 0x00010000
};
enum diag204_cpu_flags {
DIAG204_CPU_ONLINE = 0x20,
DIAG204_CPU_CAPPED = 0x40,
};
struct diag204_info_blk_hdr {
__u8 npar;
__u8 flags;
__u16 tslice;
__u16 phys_cpus;
__u16 this_part;
__u64 curtod;
} __packed;
struct diag204_x_info_blk_hdr {
__u8 npar;
__u8 flags;
__u16 tslice;
__u16 phys_cpus;
__u16 this_part;
__u64 curtod1;
__u64 curtod2;
char reserved[40];
} __packed;
struct diag204_part_hdr {
__u8 pn;
__u8 cpus;
char reserved[6];
char part_name[DIAG204_LPAR_NAME_LEN];
} __packed;
struct diag204_x_part_hdr {
__u8 pn;
__u8 cpus;
__u8 rcpus;
__u8 pflag;
__u32 mlu;
char part_name[DIAG204_LPAR_NAME_LEN];
char lpc_name[8];
char os_name[8];
__u64 online_cs;
__u64 online_es;
__u8 upid;
__u8 reserved:3;
__u8 mtid:5;
char reserved1[2];
__u32 group_mlu;
char group_name[8];
char hardware_group_name[8];
char reserved2[24];
} __packed;
struct diag204_cpu_info {
__u16 cpu_addr;
char reserved1[2];
__u8 ctidx;
__u8 cflag;
__u16 weight;
__u64 acc_time;
__u64 lp_time;
} __packed;
struct diag204_x_cpu_info {
__u16 cpu_addr;
char reserved1[2];
__u8 ctidx;
__u8 cflag;
__u16 weight;
__u64 acc_time;
__u64 lp_time;
__u16 min_weight;
__u16 cur_weight;
__u16 max_weight;
char reseved2[2];
__u64 online_time;
__u64 wait_time;
__u32 pma_weight;
__u32 polar_weight;
__u32 cpu_type_cap;
__u32 group_cpu_type_cap;
char reserved3[32];
} __packed;
struct diag204_phys_hdr {
char reserved1[1];
__u8 cpus;
char reserved2[6];
char mgm_name[8];
} __packed;
struct diag204_x_phys_hdr {
char reserved1[1];
__u8 cpus;
char reserved2[6];
char mgm_name[8];
char reserved3[80];
} __packed;
struct diag204_phys_cpu {
__u16 cpu_addr;
char reserved1[2];
__u8 ctidx;
char reserved2[3];
__u64 mgm_time;
char reserved3[8];
} __packed;
struct diag204_x_phys_cpu {
__u16 cpu_addr;
char reserved1[2];
__u8 ctidx;
char reserved2[1];
__u16 weight;
__u64 mgm_time;
char reserved3[80];
} __packed;
struct diag204_x_part_block {
struct diag204_x_part_hdr hdr;
struct diag204_x_cpu_info cpus[];
} __packed;
struct diag204_x_phys_block {
struct diag204_x_phys_hdr hdr;
struct diag204_x_phys_cpu cpus[];
} __packed;
enum diag26c_sc {
DIAG26C_PORT_VNIC = 0x00000024,
DIAG26C_MAC_SERVICES = 0x00000030
};
enum diag26c_version {
DIAG26C_VERSION2 = 0x00000002, /* z/VM 5.4.0 */
DIAG26C_VERSION6_VM65918 = 0x00020006 /* z/VM 6.4.0 + VM65918 */
};
#define DIAG26C_VNIC_INFO 0x0002
struct diag26c_vnic_req {
u32 resp_buf_len;
u32 resp_version;
u16 req_format;
u16 vlan_id;
u64 sys_name;
u8 res[2];
u16 devno;
} __packed __aligned(8);
#define VNIC_INFO_PROT_L3 1
#define VNIC_INFO_PROT_L2 2
/* Note: this is the bare minimum, use it for uninitialized VNICs only. */
struct diag26c_vnic_resp {
u32 version;
u32 entry_cnt;
/* VNIC info: */
u32 next_entry;
u64 owner;
u16 devno;
u8 status;
u8 type;
u64 lan_owner;
u64 lan_name;
u64 port_name;
u8 port_type;
u8 ext_status:6;
u8 protocol:2;
u16 base_devno;
u32 port_num;
u32 ifindex;
u32 maxinfo;
u32 dev_count;
/* 3x device info: */
u8 dev_info1[28];
u8 dev_info2[28];
u8 dev_info3[28];
} __packed __aligned(8);
#define DIAG26C_GET_MAC 0x0000
struct diag26c_mac_req {
u32 resp_buf_len;
u32 resp_version;
u16 op_code;
u16 devno;
u8 res[4];
};
struct diag26c_mac_resp {
u32 version;
u8 mac[ETH_ALEN];
u8 res[2];
} __aligned(8);
#define CPNC_LINUX 0x4
union diag318_info {
unsigned long val;
struct {
unsigned long cpnc : 8;
unsigned long cpvc : 56;
};
};
int diag204(unsigned long subcode, unsigned long size, void *addr);
int diag224(void *ptr);
int diag26c(void *req, void *resp, enum diag26c_sc subcode);
struct hypfs_diag0c_entry;
/*
* This structure must contain only pointers/references into
* the AMODE31 text section.
*/
struct diag_ops {
int (*diag210)(struct diag210 *addr);
int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
int (*diag8c)(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
void (*diag0c)(struct hypfs_diag0c_entry *entry);
void (*diag308_reset)(void);
};
extern struct diag_ops diag_amode31_ops;
extern struct diag210 *__diag210_tmp_amode31;
int _diag210_amode31(struct diag210 *addr);
int _diag26c_amode31(void *req, void *resp, enum diag26c_sc subcode);
int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode);
void _diag0c_amode31(struct hypfs_diag0c_entry *entry);
void _diag308_reset_amode31(void);
int _diag8c_amode31(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
#endif /* _ASM_S390_DIAG_H */
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