Skip to content

L
linux
Commit 06da5d99 authored by Martin Schwidefsky's avatar Martin Schwidefsky Committed by Linus Torvalds
Browse files
Options

[PATCH] s390/s390x unification (7/7) 

Merge s390x and s390 to one architecture.
parent e6268940
Hide whitespace changes
Inline Side-by-side
Showing with 1320 additions and 492 deletions
include/asm-s390/posix_types.h
View file @ 06da5d99
......@@ -15,18 +15,9 @@
* assume GCC is being used.
*/
typedef unsigned short __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
typedef unsigned short __kernel_nlink_t;
typedef long __kernel_off_t;
typedef int __kernel_pid_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_gid_t;
typedef unsigned long __kernel_size_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
......@@ -36,15 +27,45 @@ typedef int __kernel_daddr_t;
typedef char * __kernel_caddr_t;
typedef unsigned short __kernel_uid16_t;
typedef unsigned short __kernel_gid16_t;
#ifdef __GNUC__
typedef long long __kernel_loff_t;
#endif
#ifndef __s390x__
typedef unsigned short __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
typedef unsigned short __kernel_nlink_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_gid_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
typedef unsigned int __kernel_uid32_t;
typedef unsigned int __kernel_gid32_t;
typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
#ifdef __GNUC__
typedef long long __kernel_loff_t;
#endif
#else /* __s390x__ */
typedef unsigned int __kernel_dev_t;
typedef unsigned int __kernel_ino_t;
typedef unsigned int __kernel_mode_t;
typedef unsigned int __kernel_nlink_t;
typedef int __kernel_ipc_pid_t;
typedef unsigned int __kernel_uid_t;
typedef unsigned int __kernel_gid_t;
typedef long __kernel_ssize_t;
typedef long __kernel_ptrdiff_t;
typedef unsigned long __kernel_sigset_t; /* at least 32 bits */
typedef __kernel_uid_t __kernel_old_uid_t;
typedef __kernel_gid_t __kernel_old_gid_t;
typedef __kernel_uid_t __kernel_uid32_t;
typedef __kernel_gid_t __kernel_gid32_t;
#endif /* __s390x__ */
typedef struct {
#if defined(__KERNEL__) || defined(__USE_ALL)
......
include/asm-s390/processor.h
View file @ 06da5d99
......@@ -44,6 +44,9 @@ struct cpuinfo_S390
__u16 cpu_nr;
unsigned long loops_per_jiffy;
unsigned long *pgd_quick;
#ifdef __s390x__
unsigned long *pmd_quick;
#endif /* __s390x__ */
unsigned long *pte_quick;
unsigned long pgtable_cache_sz;
};
......@@ -54,58 +57,90 @@ extern void print_cpu_info(struct cpuinfo_S390 *);
extern struct task_struct *last_task_used_math;
/*
* User space process size: 2GB (default).
* User space process size: 2GB for 31 bit, 4TB for 64 bit.
*/
#define TASK_SIZE (0x80000000)
/* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
*/
#define TASK_UNMAPPED_BASE (TASK_SIZE / 2)
#ifndef __s390x__
# define TASK_SIZE (0x80000000UL)
# define TASK_UNMAPPED_BASE (TASK_SIZE / 2)
#else /* __s390x__ */
# define TASK_SIZE (0x20000000000UL)
# define TASK31_SIZE (0x80000000UL)
# define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
(TASK31_SIZE / 2) : (TASK_SIZE / 2))
#endif /* __s390x__ */
typedef struct {
__u32 ar4;
} mm_segment_t;
/* if you change the thread_struct structure, you must
* update the _TSS_* defines in entry.S
/*
* Thread structure
*/
struct thread_struct
{
struct thread_struct {
s390_fp_regs fp_regs;
__u32 ar2; /* kernel access register 2 */
__u32 ar4; /* kernel access register 4 */
__u32 ksp; /* kernel stack pointer */
__u32 user_seg; /* HSTD */
__u32 error_code; /* error-code of last prog-excep. */
__u32 prot_addr; /* address of protection-excep. */
__u32 trap_no;
per_struct per_info;/* Must be aligned on an 4 byte boundary*/
unsigned int ar2; /* kernel access register 2 */
unsigned int ar4; /* kernel access register 4 */
unsigned long ksp; /* kernel stack pointer */
unsigned long user_seg; /* HSTD */
unsigned long prot_addr; /* address of protection-excep. */
unsigned int error_code; /* error-code of last prog-excep. */
unsigned int trap_no;
per_struct per_info;
/* Used to give failing instruction back to user for ieee exceptions */
addr_t ieee_instruction_pointer;
unsigned long ieee_instruction_pointer;
/* pfault_wait is used to block the process on a pfault event */
addr_t pfault_wait;
unsigned long pfault_wait;
};
typedef struct thread_struct thread_struct;
#define INIT_THREAD {{0,{{0},{0},{0},{0},{0},{0},{0},{0},{0},{0}, \
{0},{0},{0},{0},{0},{0}}}, \
0, 0, \
sizeof(init_stack) + (__u32) &init_stack, \
(__pa((__u32) &swapper_pg_dir[0]) + _SEGMENT_TABLE),\
0,0,0, \
(per_struct) {{{{0,}}},0,0,0,0,{{0,}}}, \
0, 0 \
}
#ifndef __s390x__
# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _SEGMENT_TABLE
#else /* __s390x__ */
# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _REGION_TABLE
#endif /* __s390x__ */
#define INIT_THREAD {{0,{{0},{0},{0},{0},{0},{0},{0},{0},{0},{0}, \
{0},{0},{0},{0},{0},{0}}}, \
0, 0, \
sizeof(init_stack) + (unsigned long) &init_stack, \
__SWAPPER_PG_DIR, \
0,0,0, \
(per_struct) {{{{0,}}},0,0,0,0,{{0,}}}, \
0, 0 \
}
/*
* Do necessary setup to start up a new thread.
*/
#ifndef __s390x__
/* need to define ... */
#define start_thread(regs, new_psw, new_stackp) do { \
regs->psw.mask = PSW_USER_BITS; \
regs->psw.addr = new_psw | PSW_ADDR_AMODE31; \
regs->psw.addr = new_psw | PSW_ADDR_AMODE; \
regs->gprs[15] = new_stackp ; \
} while (0)
#else /* __s390x__ */
#define start_thread(regs, new_psw, new_stackp) do { \
regs->psw.mask = PSW_USER_BITS; \
regs->psw.addr = new_psw; \
regs->gprs[15] = new_stackp; \
} while (0)
#define start_thread31(regs, new_psw, new_stackp) do { \
regs->psw.mask = PSW_USER32_BITS; \
regs->psw.addr = new_psw; \
regs->gprs[15] = new_stackp; \
} while (0)
#endif /* __s390x__ */
/* Forward declaration, a strange C thing */
struct task_struct;
struct mm_struct;
......@@ -129,14 +164,19 @@ extern char *task_show_regs(struct task_struct *task, char *buffer);
unsigned long get_wchan(struct task_struct *p);
#define __KSTK_PTREGS(tsk) ((struct pt_regs *) \
(((addr_t) tsk->thread_info + THREAD_SIZE - sizeof(struct pt_regs)) & -8L))
(((unsigned long) tsk->thread_info + THREAD_SIZE - sizeof(struct pt_regs)) & -8L))
#define KSTK_EIP(tsk) (__KSTK_PTREGS(tsk)->psw.addr)
#define KSTK_ESP(tsk) (__KSTK_PTREGS(tsk)->gprs[15])
/*
* Give up the time slice of the virtual PU.
*/
#define cpu_relax() asm volatile ("diag 0,0,68" : : : "memory")
#ifndef __s390x__
# define cpu_relax() asm volatile ("diag 0,0,68" : : : "memory")
#else /* __s390x__ */
# define cpu_relax() \
asm volatile ("ex 0,%0" : : "i" (__LC_DIAG44_OPCODE) : "memory")
#endif /* __s390x__ */
/*
* Set PSW mask to specified value, while leaving the
......@@ -150,13 +190,22 @@ static inline void __load_psw_mask (unsigned long mask)
psw_t psw;
psw.mask = mask;
#ifndef __s390x__
asm volatile (
" basr %0,0\n"
"0: ahi %0,1f-0b\n"
" st %0,4(%1)\n"
" st %0,4(%1)\n"
" lpsw 0(%1)\n"
"1:"
: "=&d" (addr) : "a" (&psw) : "memory", "cc" );
#else /* __s390x__ */
asm volatile (
" larl %0,1f\n"
" stg %0,8(%1)\n"
" lpswe 0(%1)\n"
"1:"
: "=&d" (addr) : "a" (&psw) : "memory", "cc" );
#endif /* __s390x__ */
}
/*
......@@ -169,6 +218,7 @@ static inline void enabled_wait(void)
wait_psw.mask = PSW_BASE_BITS | PSW_MASK_IO | PSW_MASK_EXT |
PSW_MASK_MCHECK | PSW_MASK_WAIT;
#ifndef __s390x__
asm volatile (
" basr %0,0\n"
"0: la %0,1f-0b(%0)\n"
......@@ -177,6 +227,14 @@ static inline void enabled_wait(void)
" lpsw 0(%1)\n"
"1:"
: "=&a" (reg) : "a" (&wait_psw) : "memory", "cc" );
#else /* __s390x__ */
asm volatile (
" larl %0,0f\n"
" stg %0,8(%1)\n"
" lpswe 0(%1)\n"
"0:"
: "=&a" (reg) : "a" (&wait_psw) : "memory", "cc" );
#endif /* __s390x__ */
}
/*
......@@ -196,7 +254,7 @@ static inline void disabled_wait(unsigned long code)
* Store status and then load disabled wait psw,
* the processor is dead afterwards
*/
#ifndef __s390x__
asm volatile (" stctl 0,0,0(%1)\n"
" ni 0(%1),0xef\n" /* switch off protection */
" lctl 0,0,0(%1)\n"
......@@ -213,6 +271,38 @@ static inline void disabled_wait(unsigned long code)
" oi 0(%1),0x10\n" /* fake protection bit */
" lpsw 0(%0)"
: : "a" (dw_psw), "a" (&ctl_buf) : "cc" );
#else /* __s390x__ */
asm volatile (" stctg 0,0,0(%1)\n"
" ni 4(%1),0xef\n" /* switch off protection */
" lctlg 0,0,0(%1)\n"
" lghi 1,0x1000\n"
" stpt 0x328(1)\n" /* store timer */
" stckc 0x330(1)\n" /* store clock comparator */
" stpx 0x318(1)\n" /* store prefix register */
" stam 0,15,0x340(1)\n" /* store access registers */
" stfpc 0x31c(1)\n" /* store fpu control */
" std 0,0x200(1)\n" /* store f0 */
" std 1,0x208(1)\n" /* store f1 */
" std 2,0x210(1)\n" /* store f2 */
" std 3,0x218(1)\n" /* store f3 */
" std 4,0x220(1)\n" /* store f4 */
" std 5,0x228(1)\n" /* store f5 */
" std 6,0x230(1)\n" /* store f6 */
" std 7,0x238(1)\n" /* store f7 */
" std 8,0x240(1)\n" /* store f8 */
" std 9,0x248(1)\n" /* store f9 */
" std 10,0x250(1)\n" /* store f10 */
" std 11,0x258(1)\n" /* store f11 */
" std 12,0x260(1)\n" /* store f12 */
" std 13,0x268(1)\n" /* store f13 */
" std 14,0x270(1)\n" /* store f14 */
" std 15,0x278(1)\n" /* store f15 */
" stmg 0,15,0x280(1)\n" /* store general registers */
" stctg 0,15,0x380(1)\n" /* store control registers */
" oi 0x384(1),0x10\n" /* fake protection bit */
" lpswe 0(%0)"
: : "a" (dw_psw), "a" (&ctl_buf) : "cc", "0", "1");
#endif /* __s390x__ */
}
#endif
......
include/asm-s390/ptrace.h
View file @ 06da5d99
......@@ -13,6 +13,8 @@
* Offsets in the user_regs_struct. They are used for the ptrace
* system call and in entry.S
*/
#ifndef __s390x__
#define PT_PSWMASK 0x00
#define PT_PSWADDR 0x04
#define PT_GPR0 0x08
......@@ -92,18 +94,89 @@
#define PT_LASTOFF PT_IEEE_IP
#define PT_ENDREGS 0x140-1
#define GPR_SIZE 4
#define CR_SIZE 4
#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
#else /* __s390x__ */
#define PT_PSWMASK 0x00
#define PT_PSWADDR 0x08
#define PT_GPR0 0x10
#define PT_GPR1 0x18
#define PT_GPR2 0x20
#define PT_GPR3 0x28
#define PT_GPR4 0x30
#define PT_GPR5 0x38
#define PT_GPR6 0x40
#define PT_GPR7 0x48
#define PT_GPR8 0x50
#define PT_GPR9 0x58
#define PT_GPR10 0x60
#define PT_GPR11 0x68
#define PT_GPR12 0x70
#define PT_GPR13 0x78
#define PT_GPR14 0x80
#define PT_GPR15 0x88
#define PT_ACR0 0x90
#define PT_ACR1 0x94
#define PT_ACR2 0x98
#define PT_ACR3 0x9C
#define PT_ACR4 0xA0
#define PT_ACR5 0xA4
#define PT_ACR6 0xA8
#define PT_ACR7 0xAC
#define PT_ACR8 0xB0
#define PT_ACR9 0xB4
#define PT_ACR10 0xB8
#define PT_ACR11 0xBC
#define PT_ACR12 0xC0
#define PT_ACR13 0xC4
#define PT_ACR14 0xC8
#define PT_ACR15 0xCC
#define PT_ORIGGPR2 0xD0
#define PT_FPC 0xD8
#define PT_FPR0 0xE0
#define PT_FPR1 0xE8
#define PT_FPR2 0xF0
#define PT_FPR3 0xF8
#define PT_FPR4 0x100
#define PT_FPR5 0x108
#define PT_FPR6 0x110
#define PT_FPR7 0x118
#define PT_FPR8 0x120
#define PT_FPR9 0x128
#define PT_FPR10 0x130
#define PT_FPR11 0x138
#define PT_FPR12 0x140
#define PT_FPR13 0x148
#define PT_FPR14 0x150
#define PT_FPR15 0x158
#define PT_CR_9 0x160
#define PT_CR_10 0x168
#define PT_CR_11 0x170
#define PT_IEEE_IP 0x1A8
#define PT_LASTOFF PT_IEEE_IP
#define PT_ENDREGS 0x1B0-1
#define GPR_SIZE 8
#define CR_SIZE 8
#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
#endif /* __s390x__ */
#define NUM_GPRS 16
#define NUM_FPRS 16
#define NUM_CRS 16
#define NUM_ACRS 16
#define GPR_SIZE 4
#define FPR_SIZE 8
#define FPC_SIZE 4
#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
#define CR_SIZE 4
#define ACR_SIZE 4
#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
#define PTRACE_OLDSETOPTIONS 21
......@@ -113,13 +186,39 @@
#include <linux/types.h>
#include <asm/setup.h>
typedef union
{
float f;
double d;
__u64 ui;
struct
{
__u32 hi;
__u32 lo;
} fp;
} freg_t;
typedef struct
{
__u32 fpc;
freg_t fprs[NUM_FPRS];
} s390_fp_regs;
#define FPC_EXCEPTION_MASK 0xF8000000
#define FPC_FLAGS_MASK 0x00F80000
#define FPC_DXC_MASK 0x0000FF00
#define FPC_RM_MASK 0x00000003
#define FPC_VALID_MASK 0xF8F8FF03
/* this typedef defines how a Program Status Word looks like */
typedef struct
{
__u32 mask;
__u32 addr;
unsigned long mask;
unsigned long addr;
} __attribute__ ((aligned(8))) psw_t;
#ifndef __s390x__
#define PSW_MASK_PER 0x40000000UL
#define PSW_MASK_DAT 0x04000000UL
#define PSW_MASK_IO 0x02000000UL
......@@ -132,7 +231,7 @@ typedef struct
#define PSW_MASK_CC 0x00003000UL
#define PSW_MASK_PM 0x00000F00UL
#define PSW_ADDR_AMODE31 0x80000000UL
#define PSW_ADDR_AMODE 0x80000000UL
#define PSW_ADDR_INSN 0x7FFFFFFFUL
#define PSW_BASE_BITS 0x00080000UL
......@@ -142,34 +241,41 @@ typedef struct
#define PSW_ASC_SECONDARY 0x00008000UL
#define PSW_ASC_HOME 0x0000C000UL
#define PSW_KERNEL_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY)
#define PSW_USER_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
#else /* __s390x__ */
#define PSW_MASK_PER 0x4000000000000000UL
#define PSW_MASK_DAT 0x0400000000000000UL
#define PSW_MASK_IO 0x0200000000000000UL
#define PSW_MASK_EXT 0x0100000000000000UL
#define PSW_MASK_KEY 0x00F0000000000000UL
#define PSW_MASK_MCHECK 0x0004000000000000UL
#define PSW_MASK_WAIT 0x0002000000000000UL
#define PSW_MASK_PSTATE 0x0001000000000000UL
#define PSW_MASK_ASC 0x0000C00000000000UL
#define PSW_MASK_CC 0x0000300000000000UL
#define PSW_MASK_PM 0x00000F0000000000UL
#define PSW_ADDR_AMODE 0x0000000000000000UL
#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL
#define PSW_BASE_BITS 0x0000000180000000UL
#define PSW_BASE32_BITS 0x0000000080000000UL
#define PSW_ASC_PRIMARY 0x0000000000000000UL
#define PSW_ASC_ACCREG 0x0000400000000000UL
#define PSW_ASC_SECONDARY 0x0000800000000000UL
#define PSW_ASC_HOME 0x0000C00000000000UL
#define PSW_USER32_BITS (PSW_BASE32_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
PSW_MASK_PSTATE)
typedef union
{
float f;
double d;
__u64 ui;
struct
{
__u32 hi;
__u32 lo;
} fp;
} freg_t;
typedef struct
{
__u32 fpc;
freg_t fprs[NUM_FPRS];
} s390_fp_regs;
#endif /* __s390x__ */
#define FPC_EXCEPTION_MASK 0xF8000000
#define FPC_FLAGS_MASK 0x00F80000
#define FPC_DXC_MASK 0x0000FF00
#define FPC_RM_MASK 0x00000003
#define FPC_VALID_MASK 0xF8F8FF03
#define PSW_KERNEL_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY)
#define PSW_USER_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
PSW_MASK_PSTATE)
/*
* The first entries in pt_regs and user_regs_struct
......@@ -180,9 +286,9 @@ typedef struct
typedef struct
{
psw_t psw;
__u32 gprs[NUM_GPRS];
__u32 acrs[NUM_ACRS];
__u32 orig_gpr2;
unsigned long gprs[NUM_GPRS];
unsigned int acrs[NUM_ACRS];
unsigned long orig_gpr2;
} s390_regs;
/*
......@@ -192,24 +298,27 @@ typedef struct
struct pt_regs
{
psw_t psw;
__u32 gprs[NUM_GPRS];
__u32 acrs[NUM_ACRS];
__u32 orig_gpr2;
__u32 trap;
};
unsigned long gprs[NUM_GPRS];
unsigned int acrs[NUM_ACRS];
unsigned long orig_gpr2;
unsigned int trap;
} __attribute__ ((packed));
/*
* Now for the program event recording (trace) definitions.
*/
typedef struct
{
__u32 cr[3];
unsigned long cr[3];
} per_cr_words;
#define PER_EM_MASK 0xE8000000
#define PER_EM_MASK 0xE8000000UL
typedef struct
{
#ifdef __s390x__
unsigned : 32;
#endif /* __s390x__ */
unsigned em_branching : 1;
unsigned em_instruction_fetch : 1;
/*
......@@ -224,33 +333,34 @@ typedef struct
unsigned : 1;
unsigned storage_alt_space_ctl : 1;
unsigned : 21;
addr_t starting_addr;
addr_t ending_addr;
unsigned long starting_addr;
unsigned long ending_addr;
} per_cr_bits;
typedef struct
{
__u16 perc_atmid; /* 0x096 */
__u32 address; /* 0x098 */
__u8 access_id; /* 0x0a1 */
unsigned short perc_atmid;
unsigned long address;
unsigned char access_id;
} per_lowcore_words;
typedef struct
{
unsigned perc_branching : 1; /* 0x096 */
unsigned perc_branching : 1;
unsigned perc_instruction_fetch : 1;
unsigned perc_storage_alteration : 1;
unsigned perc_gpr_alt_unused : 1;
unsigned perc_store_real_address : 1;
unsigned : 4;
unsigned : 3;
unsigned atmid_psw_bit_31 : 1;
unsigned atmid_validity_bit : 1;
unsigned atmid_psw_bit_32 : 1;
unsigned atmid_psw_bit_5 : 1;
unsigned atmid_psw_bit_16 : 1;
unsigned atmid_psw_bit_17 : 1;
unsigned si : 2;
addr_t address; /* 0x098 */
unsigned : 4; /* 0x0a1 */
unsigned long address;
unsigned : 4;
unsigned access_id : 4;
} per_lowcore_bits;
......@@ -272,8 +382,8 @@ typedef struct
* These addresses are copied into cr10 & cr11 if single
* stepping is switched off
*/
__u32 starting_addr;
__u32 ending_addr;
unsigned long starting_addr;
unsigned long ending_addr;
union {
per_lowcore_words words;
per_lowcore_bits bits;
......@@ -282,9 +392,9 @@ typedef struct
typedef struct
{
__u32 len;
addr_t kernel_addr;
addr_t process_addr;
unsigned int len;
unsigned long kernel_addr;
unsigned long process_addr;
} ptrace_area;
/*
......@@ -313,9 +423,9 @@ typedef enum
typedef struct
{
addr_t lowaddr;
addr_t hiaddr;
ptprot_flags prot;
unsigned long lowaddr;
unsigned long hiaddr;
ptprot_flags prot;
} ptprot_area;
/* Sequence of bytes for breakpoint illegal instruction. */
......@@ -331,9 +441,9 @@ typedef struct
struct user_regs_struct
{
psw_t psw;
__u32 gprs[NUM_GPRS];
__u32 acrs[NUM_ACRS];
__u32 orig_gpr2;
unsigned long gprs[NUM_GPRS];
unsigned int acrs[NUM_ACRS];
unsigned long orig_gpr2;
s390_fp_regs fp_regs;
/*
* These per registers are in here so that gdb can modify them
......@@ -341,13 +451,13 @@ struct user_regs_struct
* watchpoints. This is the way intel does it.
*/
per_struct per_info;
addr_t ieee_instruction_pointer;
unsigned long ieee_instruction_pointer;
/* Used to give failing instruction back to user for ieee exceptions */
};
#ifdef __KERNEL__
#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_MASK_INSN)
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
extern void show_regs(struct pt_regs * regs);
#endif
......
include/asm-s390/qdio.h
View file @ 06da5d99
......@@ -20,9 +20,9 @@
#define QDIO_NAME "qdio "
#ifndef CONFIG_ARCH_S390X
#ifndef __s390x__
#define QDIO_32_BIT
#endif /* CONFIG_ARCH_S390X */
#endif /* __s390x__ */
/**** CONSTANTS, that are relied on without using these symbols *****/
#define QDIO_MAX_QUEUES_PER_IRQ 32 /* used in width of unsigned int */
......
include/asm-s390/rwsem.h
View file @ 06da5d99
......@@ -63,10 +63,17 @@ struct rw_semaphore {
struct list_head wait_list;
};
#ifndef __s390x__
#define RWSEM_UNLOCKED_VALUE 0x00000000
#define RWSEM_ACTIVE_BIAS 0x00000001
#define RWSEM_ACTIVE_MASK 0x0000ffff
#define RWSEM_WAITING_BIAS (-0x00010000)
#else /* __s390x__ */
#define RWSEM_UNLOCKED_VALUE 0x0000000000000000L
#define RWSEM_ACTIVE_BIAS 0x0000000000000001L
#define RWSEM_ACTIVE_MASK 0x00000000ffffffffL
#define RWSEM_WAITING_BIAS (-0x0000000100000000L)
#endif /* __s390x__ */
#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
......@@ -94,11 +101,19 @@ static inline void __down_read(struct rw_semaphore *sem)
signed long old, new;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" ahi %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" aghi %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory" );
......@@ -114,6 +129,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
signed long old, new;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: ltr %1,%0\n"
" jm 1f\n"
......@@ -121,6 +137,15 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
" cs %0,%1,0(%2)\n"
" jl 0b\n"
"1:"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: ltgr %1,%0\n"
" jm 1f\n"
" aghi %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b\n"
"1:"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory" );
......@@ -136,11 +161,19 @@ static inline void __down_write(struct rw_semaphore *sem)
tmp = RWSEM_ACTIVE_WRITE_BIAS;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" a %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" ag %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "m" (tmp)
: "cc", "memory" );
......@@ -156,11 +189,19 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
signed long old;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%1)\n"
"0: ltr %0,%0\n"
" jnz 1f\n"
" cs %0,%2,0(%1)\n"
" jl 0b\n"
#else /* __s390x__ */
" lg %0,0(%1)\n"
"0: ltgr %0,%0\n"
" jnz 1f\n"
" csg %0,%2,0(%1)\n"
" jl 0b\n"
#endif /* __s390x__ */
"1:"
: "=&d" (old)
: "a" (&sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
......@@ -176,11 +217,19 @@ static inline void __up_read(struct rw_semaphore *sem)
signed long old, new;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" ahi %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" aghi %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory" );
......@@ -198,11 +247,19 @@ static inline void __up_write(struct rw_semaphore *sem)
tmp = -RWSEM_ACTIVE_WRITE_BIAS;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" a %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" ag %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "m" (tmp)
: "cc", "memory" );
......@@ -220,11 +277,19 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
tmp = -RWSEM_WAITING_BIAS;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" a %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" ag %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "m" (tmp)
: "cc", "memory" );
......@@ -240,11 +305,19 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
signed long old, new;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" ar %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" agr %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "d" (delta)
: "cc", "memory" );
......@@ -258,11 +331,19 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
signed long old, new;
__asm__ __volatile__(
#ifndef __s390x__
" l %0,0(%2)\n"
"0: lr %1,%0\n"
" ar %1,%3\n"
" cs %0,%1,0(%2)\n"
" jl 0b"
#else /* __s390x__ */
" lg %0,0(%2)\n"
"0: lgr %1,%0\n"
" agr %1,%3\n"
" csg %0,%1,0(%2)\n"
" jl 0b"
#endif /* __s390x__ */
: "=&d" (old), "=&d" (new)
: "a" (&sem->count), "d" (delta)
: "cc", "memory" );
......
include/asm-s390/sembuf.h
View file @ 06da5d99
......@@ -7,16 +7,20 @@
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 64-bit time_t to solve y2038 problem (for !__s390x__)
* - 2 miscellaneous 32-bit values
*/
struct semid64_ds {
struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
__kernel_time_t sem_otime; /* last semop time */
#ifndef __s390x__
unsigned long __unused1;
#endif /* ! __s390x__ */
__kernel_time_t sem_ctime; /* last change time */
#ifndef __s390x__
unsigned long __unused2;
#endif /* ! __s390x__ */
unsigned long sem_nsems; /* no. of semaphores in array */
unsigned long __unused3;
unsigned long __unused4;
......
include/asm-s390/setup.h
View file @ 06da5d99
......@@ -15,9 +15,15 @@
#ifndef __ASSEMBLY__
#ifndef __s390x__
#define IPL_DEVICE (*(unsigned long *) (0x10404))
#define INITRD_START (*(unsigned long *) (0x1040C))
#define INITRD_SIZE (*(unsigned long *) (0x10414))
#else /* __s390x__ */
#define IPL_DEVICE (*(unsigned long *) (0x10400))
#define INITRD_START (*(unsigned long *) (0x10408))
#define INITRD_SIZE (*(unsigned long *) (0x10410))
#endif /* __s390x__ */
#define COMMAND_LINE ((char *) (0x10480))
/*
......@@ -26,10 +32,18 @@
extern unsigned long machine_flags;
#define MACHINE_IS_VM (machine_flags & 1)
#define MACHINE_HAS_IEEE (machine_flags & 2)
#define MACHINE_IS_P390 (machine_flags & 4)
#define MACHINE_HAS_CSP (machine_flags & 8)
#define MACHINE_HAS_MVPG (machine_flags & 16)
#define MACHINE_HAS_DIAG44 (machine_flags & 32)
#ifndef __s390x__
#define MACHINE_HAS_IEEE (machine_flags & 2)
#define MACHINE_HAS_CSP (machine_flags & 8)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
#endif /* __s390x__ */
#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
......@@ -50,9 +64,15 @@ extern unsigned int console_irq;
#else
#ifndef __s390x__
#define IPL_DEVICE 0x10404
#define INITRD_START 0x1040C
#define INITRD_SIZE 0x10414
#else /* __s390x__ */
#define IPL_DEVICE 0x10400
#define INITRD_START 0x10408
#define INITRD_SIZE 0x10410
#endif /* __s390x__ */
#define COMMAND_LINE 0x10480
#endif
......
include/asm-s390/shmbuf.h
View file @ 06da5d99
......@@ -7,7 +7,7 @@
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 64-bit time_t to solve y2038 problem (for !__s390x__)
* - 2 miscellaneous 32-bit values
*/
......@@ -15,11 +15,17 @@ struct shmid64_ds {
struct ipc64_perm shm_perm; /* operation perms */
size_t shm_segsz; /* size of segment (bytes) */
__kernel_time_t shm_atime; /* last attach time */
#ifndef __s390x__
unsigned long __unused1;
#endif /* ! __s390x__ */
__kernel_time_t shm_dtime; /* last detach time */
#ifndef __s390x__
unsigned long __unused2;
#endif /* ! __s390x__ */
__kernel_time_t shm_ctime; /* last change time */
#ifndef __s390x__
unsigned long __unused3;
#endif /* ! __s390x__ */
__kernel_pid_t shm_cpid; /* pid of creator */
__kernel_pid_t shm_lpid; /* pid of last operator */
unsigned long shm_nattch; /* no. of current attaches */
......
include/asm-s390/sigcontext.h
View file @ 06da5d99
......@@ -12,13 +12,24 @@
#define __NUM_FPRS 16
#define __NUM_ACRS 16
/*
Has to be at least _NSIG_WORDS from asm/signal.h
*/
#define _SIGCONTEXT_NSIG 64
#define _SIGCONTEXT_NSIG_BPW 32
#ifndef __s390x__
/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG 64
#define _SIGCONTEXT_NSIG_BPW 32
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE 96
#else /* __s390x__ */
/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG 64
#define _SIGCONTEXT_NSIG_BPW 64
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE 160
#endif /* __s390x__ */
#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
......
include/asm-s390/signal.h
View file @ 06da5d99
......@@ -171,9 +171,15 @@ struct sigaction {
__sighandler_t _sa_handler;
void (*_sa_sigaction)(int, struct siginfo *, void *);
} _u;
#ifndef __s390x__ /* lovely */
sigset_t sa_mask;
unsigned long sa_flags;
void (*sa_restorer)(void);
#else /* __s390x__ */
unsigned long sa_flags;
void (*sa_restorer)(void);
sigset_t sa_mask;
#endif /* __s390x__ */
};
#define sa_handler _u._sa_handler
......
include/asm-s390/sigp.h
View file @ 06da5d99
......@@ -72,10 +72,17 @@ signal_processor(__u16 cpu_addr, sigp_order_code order_code)
sigp_ccode ccode;
__asm__ __volatile__(
#ifndef __s390x__
" sr 1,1\n" /* parameter=0 in gpr 1 */
" sigp 1,%1,0(%2)\n"
" ipm %0\n"
" srl %0,28\n"
#else /* __s390x__ */
" sgr 1,1\n" /* parameter=0 in gpr 1 */
" sigp 1,%1,0(%2)\n"
" ipm %0\n"
" srl %0,28"
#endif /* __s390x__ */
: "=d" (ccode)
: "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
: "cc" , "memory", "1" );
......@@ -86,15 +93,23 @@ signal_processor(__u16 cpu_addr, sigp_order_code order_code)
* Signal processor with parameter
*/
extern __inline__ sigp_ccode
signal_processor_p(__u32 parameter,__u16 cpu_addr,sigp_order_code order_code)
signal_processor_p(unsigned long parameter,__u16 cpu_addr,
sigp_order_code order_code)
{
sigp_ccode ccode;
__asm__ __volatile__(
#ifndef __s390x__
" lr 1,%1\n" /* parameter in gpr 1 */
" sigp 1,%2,0(%3)\n"
" ipm %0\n"
" srl %0,28\n"
#else /* __s390x__ */
" lgr 1,%1\n" /* parameter in gpr 1 */
" sigp 1,%2,0(%3)\n"
" ipm %0\n"
" srl %0,28\n"
#endif /* __s390x__ */
: "=d" (ccode)
: "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
"a" (order_code)
......@@ -106,18 +121,27 @@ signal_processor_p(__u32 parameter,__u16 cpu_addr,sigp_order_code order_code)
* Signal processor with parameter and return status
*/
extern __inline__ sigp_ccode
signal_processor_ps(__u32 *statusptr, __u32 parameter,
signal_processor_ps(__u32 *statusptr, unsigned long parameter,
__u16 cpu_addr, sigp_order_code order_code)
{
sigp_ccode ccode;
__asm__ __volatile__(
#ifndef __s390x__
" sr 2,2\n" /* clear status so it doesn't contain rubbish if not saved. */
" lr 3,%2\n" /* parameter in gpr 3 */
" sigp 2,%3,0(%4)\n"
" st 2,%1\n"
" ipm %0\n"
" srl %0,28\n"
#else /* __s390x__ */
" sgr 2,2\n" /* clear status so it doesn't contain rubbish if not saved. */
" lgr 3,%2\n" /* parameter in gpr 3 */
" sigp 2,%3,0(%4)\n"
" stg 2,%1\n"
" ipm %0\n"
" srl %0,28\n"
#endif /* __s390x__ */
: "=d" (ccode), "=m" (*statusptr)
: "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
"a" (order_code)
......
include/asm-s390/smp.h
View file @ 06da5d99
......@@ -52,7 +52,11 @@ extern volatile unsigned long cpu_possible_map;
extern inline unsigned int num_online_cpus(void)
{
#ifndef __s390x__
return hweight32(cpu_online_map);
#else /* __s390x__ */
return hweight64(cpu_online_map);
#endif /* __s390x__ */
}
extern inline int any_online_cpu(unsigned int mask)
......
include/asm-s390/spinlock.h
View file @ 06da5d99
......@@ -11,6 +11,22 @@
#ifndef __ASM_SPINLOCK_H
#define __ASM_SPINLOCK_H
#ifdef __s390x__
/*
* Grmph, take care of %&#! user space programs that include
* asm/spinlock.h. The diagnose is only available in kernel
* context.
*/
#ifdef __KERNEL__
#include <asm/lowcore.h>
#define __DIAG44_INSN "ex"
#define __DIAG44_OPERAND __LC_DIAG44_OPCODE
#else
#define __DIAG44_INSN "#"
#define __DIAG44_OPERAND 0
#endif
#endif /* __s390x__ */
/*
* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
......@@ -19,8 +35,13 @@
*/
typedef struct {
#ifndef __s390x__
volatile unsigned long lock;
} spinlock_t;
#else /* __s390x__ */
volatile unsigned int lock;
} __attribute__ ((aligned (4))) spinlock_t;
#endif /* __s390x__ */
#define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 }
#define spin_lock_init(lp) do { (lp)->lock = 0; } while(0)
......@@ -29,6 +50,7 @@ typedef struct {
extern inline void _raw_spin_lock(spinlock_t *lp)
{
#ifndef __s390x__
unsigned int reg1, reg2;
__asm__ __volatile(" bras %0,1f\n"
"0: diag 0,0,68\n"
......@@ -37,11 +59,26 @@ extern inline void _raw_spin_lock(spinlock_t *lp)
" jl 0b\n"
: "=&d" (reg1), "=&d" (reg2), "+m" (lp->lock)
: "a" (&lp->lock) : "cc" );
#else /* __s390x__ */
unsigned long reg1, reg2;
__asm__ __volatile(" bras %1,1f\n"
"0: " __DIAG44_INSN " 0,%4\n"
"1: slr %0,%0\n"
" cs %0,%1,0(%3)\n"
" jl 0b\n"
: "=&d" (reg1), "=&d" (reg2), "+m" (lp->lock)
: "a" (&lp->lock), "i" (__DIAG44_OPERAND)
: "cc" );
#endif /* __s390x__ */
}
extern inline int _raw_spin_trylock(spinlock_t *lp)
{
#ifndef __s390x__
unsigned long result, reg;
#else /* __s390x__ */
unsigned int result, reg;
#endif /* __s390x__ */
__asm__ __volatile(" slr %0,%0\n"
" basr %1,0\n"
"0: cs %0,%1,0(%3)"
......@@ -80,6 +117,7 @@ typedef struct {
#define rwlock_is_locked(x) ((x)->lock != 0)
#ifndef __s390x__
#define _raw_read_lock(rw) \
asm volatile(" l 2,0(%1)\n" \
" j 1f\n" \
......@@ -90,7 +128,21 @@ typedef struct {
" jl 0b" \
: "+m" ((rw)->lock) : "a" (&(rw)->lock) \
: "2", "3", "cc" )
#else /* __s390x__ */
#define _raw_read_lock(rw) \
asm volatile(" lg 2,0(%1)\n" \
" j 1f\n" \
"0: " __DIAG44_INSN " 0,%2\n" \
"1: nihh 2,0x7fff\n" /* clear high (=write) bit */ \
" la 3,1(2)\n" /* one more reader */ \
" csg 2,3,0(%1)\n" /* try to write new value */ \
" jl 0b" \
: "+m" ((rw)->lock) \
: "a" (&(rw)->lock), "i" (__DIAG44_OPERAND) \
: "2", "3", "cc" )
#endif /* __s390x__ */
#ifndef __s390x__
#define _raw_read_unlock(rw) \
asm volatile(" l 2,0(%1)\n" \
" j 1f\n" \
......@@ -101,7 +153,21 @@ typedef struct {
" jl 0b" \
: "+m" ((rw)->lock) : "a" (&(rw)->lock) \
: "2", "3", "cc" )
#else /* __s390x__ */
#define _raw_read_unlock(rw) \
asm volatile(" lg 2,0(%1)\n" \
" j 1f\n" \
"0: " __DIAG44_INSN " 0,%2\n" \
"1: lgr 3,2\n" \
" bctgr 3,0\n" /* one less reader */ \
" csg 2,3,0(%1)\n" \
" jl 0b" \
: "+m" ((rw)->lock) \
: "a" (&(rw)->lock), "i" (__DIAG44_OPERAND) \
: "2", "3", "cc" )
#endif /* __s390x__ */
#ifndef __s390x__
#define _raw_write_lock(rw) \
asm volatile(" lhi 3,1\n" \
" sll 3,31\n" /* new lock value = 0x80000000 */ \
......@@ -112,7 +178,20 @@ typedef struct {
" jl 0b" \
: "+m" ((rw)->lock) : "a" (&(rw)->lock) \
: "2", "3", "cc" )
#else /* __s390x__ */
#define _raw_write_lock(rw) \
asm volatile(" llihh 3,0x8000\n" /* new lock value = 0x80...0 */ \
" j 1f\n" \
"0: " __DIAG44_INSN " 0,%2\n" \
"1: slgr 2,2\n" /* old lock value must be 0 */ \
" csg 2,3,0(%1)\n" \
" jl 0b" \
: "+m" ((rw)->lock) \
: "a" (&(rw)->lock), "i" (__DIAG44_OPERAND) \
: "2", "3", "cc" )
#endif /* __s390x__ */
#ifndef __s390x__
#define _raw_write_unlock(rw) \
asm volatile(" slr 3,3\n" /* new lock value = 0 */ \
" j 1f\n" \
......@@ -123,15 +202,34 @@ typedef struct {
" jl 0b" \
: "+m" ((rw)->lock) : "a" (&(rw)->lock) \
: "2", "3", "cc" )
#else /* __s390x__ */
#define _raw_write_unlock(rw) \
asm volatile(" slgr 3,3\n" /* new lock value = 0 */ \
" j 1f\n" \
"0: " __DIAG44_INSN " 0,%2\n" \
"1: llihh 2,0x8000\n" /* old lock value must be 0x8..0 */\
" csg 2,3,0(%1)\n" \
" jl 0b" \
: "+m" ((rw)->lock) \
: "a" (&(rw)->lock), "i" (__DIAG44_OPERAND) \
: "2", "3", "cc" )
#endif /* __s390x__ */
extern inline int _raw_write_trylock(rwlock_t *rw)
{
unsigned int result, reg;
__asm__ __volatile__(" lhi %0,1\n"
__asm__ __volatile__(
#ifndef __s390x__
" lhi %0,1\n"
" sll %0,31\n"
" basr %1,0\n"
"0: cs %0,%1,0(%3)\n"
#else /* __s390x__ */
" llihh %0,0x8000\n"
" basr %1,0\n"
"0: csg %0,%1,0(%3)\n"
#endif /* __s390x__ */
: "=&d" (result), "=&d" (reg), "+m" (rw->lock)
: "a" (&rw->lock) : "cc" );
return !result;
......
include/asm-s390/stat.h
View file @ 06da5d99
......@@ -9,6 +9,7 @@
#ifndef _S390_STAT_H
#define _S390_STAT_H
#ifndef __s390x__
struct __old_kernel_stat {
unsigned short st_dev;
unsigned short st_ino;
......@@ -46,8 +47,6 @@ struct stat {
unsigned long __unused5;
};
#define STAT_HAVE_NSEC 1
/* This matches struct stat64 in glibc2.1, hence the absolutely
* insane amounts of padding around dev_t's.
*/
......@@ -76,4 +75,31 @@ struct stat64 {
unsigned long long st_ino;
};
#else /* __s390x__ */
struct stat {
unsigned long st_dev;
unsigned long st_ino;
unsigned long st_nlink;
unsigned int st_mode;
unsigned int st_uid;
unsigned int st_gid;
unsigned int __pad1;
unsigned long st_rdev;
unsigned long st_size;
unsigned long st_atime;
unsigned long st_atime_nsec;
unsigned long st_mtime;
unsigned long st_mtime_nsec;
unsigned long st_ctime;
unsigned long st_ctime_nsec;
unsigned long st_blksize;
long st_blocks;
unsigned long __unused[3];
};
#endif /* __s390x__ */
#define STAT_HAVE_NSEC 1
#endif
include/asm-s390/statfs.h
View file @ 06da5d99
......@@ -18,6 +18,7 @@ typedef __kernel_fsid_t fsid_t;
#endif
struct statfs {
#ifndef __s390x__
long f_type;
long f_bsize;
long f_blocks;
......@@ -28,6 +29,18 @@ struct statfs {
__kernel_fsid_t f_fsid;
long f_namelen;
long f_spare[6];
#else /* __s390x__ */
int f_type;
int f_bsize;
long f_blocks;
long f_bfree;
long f_bavail;
long f_files;
long f_ffree;
__kernel_fsid_t f_fsid;
int f_namelen;
int f_spare[6];
#endif /* __s390x__ */
};
#endif
include/asm-s390/string.h
View file @ 06da5d99
......@@ -49,13 +49,24 @@ static inline void * memchr(const void * cs,int c,size_t count)
{
void *ptr;
__asm__ __volatile__ (" lr 0,%2\n"
__asm__ __volatile__ (
#ifndef __s390x__
" lr 0,%2\n"
" lr 1,%1\n"
" la %0,0(%3,%1)\n"
"0: srst %0,1\n"
" jo 0b\n"
" brc 13,1f\n"
" slr %0,%0\n"
#else /* __s390x__ */
" lgr 0,%2\n"
" lgr 1,%1\n"
" la %0,0(%3,%1)\n"
"0: srst %0,1\n"
" jo 0b\n"
" brc 13,1f\n"
" slgr %0,%0\n"
#endif /* __s390x__ */
"1:"
: "=&a" (ptr) : "a" (cs), "d" (c), "d" (count)
: "cc", "0", "1" );
......@@ -66,9 +77,16 @@ static __inline__ char *strcpy(char *dest, const char *src)
{
char *tmp = dest;
__asm__ __volatile__ (" sr 0,0\n"
__asm__ __volatile__ (
#ifndef __s390x__
" sr 0,0\n"
"0: mvst %0,%1\n"
" jo 0b"
#else /* __s390x__ */
" slgr 0,0\n"
"0: mvst %0,%1\n"
" jo 0b"
#endif /* __s390x__ */
: "+&a" (dest), "+&a" (src) :
: "cc", "memory", "0" );
return tmp;
......@@ -78,12 +96,22 @@ static __inline__ size_t strlen(const char *s)
{
size_t len;
__asm__ __volatile__ (" sr 0,0\n"
__asm__ __volatile__ (
#ifndef __s390x__
" sr 0,0\n"
" lr %0,%1\n"
"0: srst 0,%0\n"
" jo 0b\n"
" lr %0,0\n"
" sr %0,%1"
#else /* __s390x__ */
" slgr 0,0\n"
" lgr %0,%1\n"
"0: srst 0,%0\n"
" jo 0b\n"
" lgr %0,0\n"
" sgr %0,%1"
#endif /* __s390x__ */
: "=&a" (len) : "a" (s)
: "cc", "0" );
return len;
......@@ -93,25 +121,30 @@ static __inline__ char *strcat(char *dest, const char *src)
{
char *tmp = dest;
__asm__ __volatile__ (" sr 0,0\n"
__asm__ __volatile__ (
#ifndef __s390x__
" sr 0,0\n"
"0: srst 0,%0\n"
" jo 0b\n"
" lr %0,0\n"
" sr 0,0\n"
"1: mvst %0,%1\n"
" jo 1b"
#else /* __s390x__ */
" slgr 0,0\n"
"0: srst 0,%0\n"
" jo 0b\n"
" lgr %0,0\n"
" slgr 0,0\n"
"1: mvst %0,%1\n"
" jo 1b"
#endif /* __s390x__ */
: "+&a" (dest), "+&a" (src) :
: "cc", "memory", "0" );
return tmp;
}
extern void *alloca(size_t);
#endif /* __KERNEL__ */
#endif /* __S390_STRING_H_ */
include/asm-s390/system.h
View file @ 06da5d99
......@@ -23,6 +23,15 @@ struct task_struct;
extern struct task_struct *resume(void *, void *);
#ifdef __s390x__
#define __FLAG_SHIFT 56
extern void __misaligned_u16(void);
extern void __misaligned_u32(void);
extern void __misaligned_u64(void);
#else /* __s390x__ */
#define __FLAG_SHIFT 24
#endif /* __s390x__ */
static inline void save_fp_regs(s390_fp_regs *fpregs)
{
asm volatile (
......@@ -88,7 +97,7 @@ static inline void restore_fp_regs(s390_fp_regs *fpregs)
#define nop() __asm__ __volatile__ ("nop")
#define xchg(ptr,x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
((__typeof__(*(ptr)))__xchg((unsigned long)(x),(void *)(ptr),sizeof(*(ptr))))
static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
{
......@@ -137,6 +146,17 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
: "memory", "cc", "0" );
x = old;
break;
#ifdef __s390x__
case 8:
asm volatile (
" lg %0,0(%2)\n"
"0: csg %0,%1,0(%2)\n"
" jl 0b\n"
: "=&d" (old) : "d" (x), "a" (ptr)
: "memory", "cc", "0" );
x = old;
break;
#endif /* __s390x__ */
}
return x;
}
......@@ -208,6 +228,14 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
: "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
: "memory", "cc" );
return prev;
#ifdef __s390x__
case 8:
asm volatile (
" csg %0,%2,0(%3)\n"
: "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
: "memory", "cc" );
return prev;
#endif /* __s390x__ */
}
return old;
}
......@@ -241,15 +269,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
/* interrupt control.. */
#define local_irq_enable() ({ \
__u8 __dummy; \
unsigned long __dummy; \
__asm__ __volatile__ ( \
"stosm 0(%1),0x03" : "=m" (__dummy) : "a" (&__dummy) ); \
})
#define local_irq_disable() ({ \
__u32 __flags; \
unsigned long __flags; \
__asm__ __volatile__ ( \
"stnsm 0(%1),0xFC" : "=m" (__flags) : "a" (&__flags) ); \
"stnsm 0(%1),0xfc" : "=m" (__flags) : "a" (&__flags) ); \
__flags; \
})
......@@ -263,9 +291,70 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
({ \
unsigned long flags; \
local_save_flags(flags); \
!((flags >> 24) & 3); \
!((flags >> __FLAG_SHIFT) & 3); \
})
#ifdef __s390x__
#define __load_psw(psw) \
__asm__ __volatile__("lpswe 0(%0)" : : "a" (&psw) : "cc" );
#define __ctl_load(array, low, high) ({ \
__asm__ __volatile__ ( \
" la 1,%0\n" \
" bras 2,0f\n" \
" lctlg 0,0,0(1)\n" \
"0: ex %1,0(2)" \
: : "m" (array), "a" (((low)<<4)+(high)) : "1", "2" ); \
})
#define __ctl_store(array, low, high) ({ \
__asm__ __volatile__ ( \
" la 1,%0\n" \
" bras 2,0f\n" \
" stctg 0,0,0(1)\n" \
"0: ex %1,0(2)" \
: "=m" (array) : "a" (((low)<<4)+(high)): "1", "2" ); \
})
#define __ctl_set_bit(cr, bit) ({ \
__u8 __dummy[24]; \
__asm__ __volatile__ ( \
" la 1,%0\n" /* align to 8 byte */ \
" aghi 1,7\n" \
" nill 1,0xfff8\n" \
" bras 2,0f\n" /* skip indirect insns */ \
" stctg 0,0,0(1)\n" \
" lctlg 0,0,0(1)\n" \
"0: ex %1,0(2)\n" /* execute stctl */ \
" lg 0,0(1)\n" \
" ogr 0,%2\n" /* set the bit */ \
" stg 0,0(1)\n" \
"1: ex %1,6(2)" /* execute lctl */ \
: "=m" (__dummy) : "a" (cr*17), "a" (1L<<(bit)) \
: "cc", "0", "1", "2"); \
})
#define __ctl_clear_bit(cr, bit) ({ \
__u8 __dummy[24]; \
__asm__ __volatile__ ( \
" la 1,%0\n" /* align to 8 byte */ \
" aghi 1,7\n" \
" nill 1,0xfff8\n" \
" bras 2,0f\n" /* skip indirect insns */ \
" stctg 0,0,0(1)\n" \
" lctlg 0,0,0(1)\n" \
"0: ex %1,0(2)\n" /* execute stctl */ \
" lg 0,0(1)\n" \
" ngr 0,%2\n" /* set the bit */ \
" stg 0,0(1)\n" \
"1: ex %1,6(2)" /* execute lctl */ \
: "=m" (__dummy) : "a" (cr*17), "a" (~(1L<<(bit))) \
: "cc", "0", "1", "2"); \
})
#else /* __s390x__ */
#define __load_psw(psw) \
__asm__ __volatile__("lpsw 0(%0)" : : "a" (&psw) : "cc" );
......@@ -273,7 +362,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
__asm__ __volatile__ ( \
" la 1,%0\n" \
" bras 2,0f\n" \
" lctl 0,0,0(1)\n" \
" lctl 0,0,0(1)\n" \
"0: ex %1,0(2)" \
: : "m" (array), "a" (((low)<<4)+(high)) : "1", "2" ); \
})
......@@ -324,6 +413,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
: "=m" (__dummy) : "a" (cr*17), "a" (~(1<<(bit))) \
: "cc", "0", "1", "2"); \
})
#endif /* __s390x__ */
/* For spinlocks etc */
#define local_irq_save(x) ((x) = local_irq_disable())
......
include/asm-s390/thread_info.h
View file @ 06da5d99
......@@ -13,6 +13,7 @@
#ifndef __ASSEMBLY__
#include <asm/processor.h>
#include <asm/lowcore.h>
/*
* low level task data that entry.S needs immediate access to
......@@ -46,26 +47,35 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
/*
* Size of kernel stack for each process
*/
#ifndef __s390x__
#define THREAD_ORDER 1
#define ASYNC_ORDER 1
#else /* __s390x__ */
#define THREAD_ORDER 2
#define ASYNC_ORDER 2
#endif /* __s390x__ */
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER)
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
{
return (struct thread_info *)((*(unsigned long *) 0xc40)-8192);
return (struct thread_info *)((*(unsigned long *) __LC_KERNEL_STACK)-THREAD_SIZE);
}
/* thread information allocation */
#define alloc_thread_info() ((struct thread_info *) \
__get_free_pages(GFP_KERNEL,1))
#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
__get_free_pages(GFP_KERNEL,THREAD_ORDER))
#define free_thread_info(ti) free_pages((unsigned long) (ti),THREAD_ORDER)
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)
#endif
/*
* Size of kernel stack for each process
*/
#define THREAD_SIZE (2*PAGE_SIZE)
/*
* thread information flags bit numbers
*/
......@@ -77,6 +87,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_31BIT 18 /* 32bit process */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
......@@ -85,6 +96,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_RESTART_SVC (1<<TIF_RESTART_SVC)
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
#endif /* __KERNEL__ */
......
include/asm-s390/tlbflush.h
View file @ 06da5d99
......@@ -28,7 +28,6 @@
#define local_flush_tlb() \
do { __asm__ __volatile__("ptlb": : :"memory"); } while (0)
#ifndef CONFIG_SMP
/*
......@@ -70,7 +69,13 @@ extern void smp_ptlb_all(void);
static inline void global_flush_tlb(void)
{
if (MACHINE_HAS_CSP) {
#ifndef __s390x__
if (!MACHINE_HAS_CSP) {
smp_ptlb_all();
return;
}
#endif /* __s390x__ */
{
long dummy = 0;
__asm__ __volatile__ (
" la 4,1(%0)\n"
......@@ -78,8 +83,7 @@ static inline void global_flush_tlb(void)
" slr 3,3\n"
" csp 2,4"
: : "a" (&dummy) : "cc", "2", "3", "4" );
} else
smp_ptlb_all();
}
}
/*
......
include/asm-s390/types.h
View file @ 06da5d99
......@@ -27,15 +27,21 @@ typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
#ifndef __s390x__
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
#endif
#else /* __s390x__ */
typedef __signed__ long __s64;
typedef unsigned long __u64;
#endif
/* A address type so that arithmetic can be done on it & it can be upgraded to
64 bit when necessary
*/
typedef __u32 addr_t;
typedef __s32 saddr_t;
typedef unsigned long addr_t;
typedef __signed__ long saddr_t;
#endif /* __ASSEMBLY__ */
......@@ -44,7 +50,11 @@ typedef __s32 saddr_t;
*/
#ifdef __KERNEL__
#ifndef __s390x__
#define BITS_PER_LONG 32
#else
#define BITS_PER_LONG 64
#endif
#ifndef __ASSEMBLY__
......@@ -57,11 +67,17 @@ typedef unsigned short u16;
typedef signed int s32;
typedef unsigned int u32;
#ifndef __s390x__
typedef signed long long s64;
typedef unsigned long long u64;
#else /* __s390x__ */
typedef signed long s64;
typedef unsigned long u64;
#endif /* __s390x__ */
typedef u32 dma_addr_t;
#ifndef __s390x__
typedef union {
unsigned long long pair;
struct {
......@@ -75,7 +91,7 @@ typedef u64 sector_t;
#define HAVE_SECTOR_T
#endif
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif
#endif /* ! __s390x__ */
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _S390_TYPES_H */
include/asm-s390/uaccess.h
View file @ 06da5d99
......@@ -71,285 +71,262 @@ struct exception_table_entry
unsigned long insn, fixup;
};
/*
* Standard fixup section for uaccess inline functions.
* local label 0: is the fault point
* local label 1: is the return point
* %0 is the error variable
* %3 is the error value -EFAULT
*/
#ifndef __s390x__
#define __uaccess_fixup \
".section .fixup,\"ax\"\n" \
"8: sacf 0\n" \
" lhi %0,%h3\n" \
" bras 4,9f\n" \
" .long 1b\n" \
"9: l 4,0(4)\n" \
" br 4\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
" .long 0b,8b\n" \
".previous"
#else /* __s390x__ */
#define __uaccess_fixup \
".section .fixup,\"ax\"\n" \
"9: sacf 0\n" \
" lhi %0,%h3\n" \
" jg 1b\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 8\n" \
" .quad 0b,9b\n" \
".previous"
#endif /* __s390x__ */
/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
*/
#ifndef __s390x__
#define __put_user_asm_8(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 2,%2\n" \
" la 4,%1\n" \
" sacf 512\n" \
"0: mvc 0(8,4),0(2)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err) \
: "m" (*(__u64*)(ptr)), "m" (x), "K" (-EFAULT) \
: "cc", "2", "4" ); \
})
extern inline int __put_user_asm_8(void *x, void *ptr)
{
int err;
__asm__ __volatile__ ( " sr %0,%0\n"
" lr 2,%1\n"
" lr 4,%2\n"
" sacf 512\n"
"0: mvc 0(8,4),0(2)\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" lhi %0,%h3\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "=&d" (err)
: "d" (x), "d" (ptr), "K" (-EFAULT)
: "cc", "2", "4" );
return err;
}
#else /* __s390x__ */
#define __put_user_asm_8(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%1\n" \
" sacf 512\n" \
"0: stg %2,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err) \
: "m" (*(__u64*)(ptr)), "d" (x), "K" (-EFAULT) \
: "cc", "4" ); \
})
extern inline int __put_user_asm_4(__u32 x, void *ptr)
{
int err;
__asm__ __volatile__ ( " sr %0,%0\n"
" lr 4,%2\n"
" sacf 512\n"
"0: st %1,0(4)\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" lhi %0,%h3\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "=&d" (err)
: "d" (x), "d" (ptr), "K" (-EFAULT)
: "cc", "4" );
return err;
}
#endif /* __s390x__ */
#define __put_user_asm_4(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%1\n" \
" sacf 512\n" \
"0: st %2,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err) \
: "m" (*(__u32*)(ptr)), "d" (x), "K" (-EFAULT) \
: "cc", "4" ); \
})
extern inline int __put_user_asm_2(__u16 x, void *ptr)
{
int err;
__asm__ __volatile__ ( " sr %0,%0\n"
" lr 4,%2\n"
" sacf 512\n"
"0: sth %1,0(4)\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" lhi %0,%h3\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "=&d" (err)
: "d" (x), "d" (ptr), "K" (-EFAULT)
: "cc", "4" );
return err;
}
#define __put_user_asm_2(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%1\n" \
" sacf 512\n" \
"0: sth %2,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err) \
: "m" (*(__u16*)(ptr)), "d" (x), "K" (-EFAULT) \
: "cc", "4" ); \
})
extern inline int __put_user_asm_1(__u8 x, void *ptr)
{
int err;
__asm__ __volatile__ ( " sr %0,%0\n"
" lr 4,%2\n"
" sacf 512\n"
"0: stc %1,0(4)\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" lhi %0,%h3\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "=&d" (err)
: "d" (x), "d" (ptr), "K" (-EFAULT)
: "cc", "4" );
return err;
}
#define __put_user_asm_1(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%1\n" \
" sacf 512\n" \
"0: stc %2,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err) \
: "m" (*(__u8*)(ptr)), "d" (x), "K" (-EFAULT) \
: "cc", "4" ); \
})
/*
* (u8)(u32) ... autsch, but that the only way we can suppress the
* warnings when compiling binfmt_elf.c
*/
#define __put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x = (x); \
int __pu_err; \
switch (sizeof (*(ptr))) { \
case 1: \
__pu_err = __put_user_asm_1((__u8)(__u32) __x, \
ptr); \
break; \
case 2: \
__pu_err = __put_user_asm_2((__u16)(__u32) __x, \
ptr); \
break; \
case 4: \
__pu_err = __put_user_asm_4((__u32) __x, \
ptr); \
break; \
case 8: \
__pu_err = __put_user_asm_8(&__x, ptr); \
break; \
default: \
__pu_err = __put_user_bad(); \
break; \
} \
__pu_err; \
#define __put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x = (x); \
int __pu_err; \
switch (sizeof (*(ptr))) { \
case 1: \
__put_user_asm_1(__x, ptr, __pu_err); \
break; \
case 2: \
__put_user_asm_2(__x, ptr, __pu_err); \
break; \
case 4: \
__put_user_asm_4(__x, ptr, __pu_err); \
break; \
case 8: \
__put_user_asm_8(__x, ptr, __pu_err); \
break; \
default: \
__pu_err = __put_user_bad(); \
break; \
} \
__pu_err; \
})
#define put_user(x, ptr) __put_user(x, ptr)
extern int __put_user_bad(void);
#define __get_user_asm_8(x, ptr, err) \
({ \
__asm__ __volatile__ ( " sr %1,%1\n" \
" la 2,%0\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: mvc 0(8,2),0(4)\n" \
" sacf 0\n" \
"1:\n" \
".section .fixup,\"ax\"\n" \
"2: sacf 0\n" \
" lhi %1,%h3\n" \
" bras 4,3f\n" \
" .long 1b\n" \
"3: l 4,0(4)\n" \
" br 4\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
" .long 0b,2b\n" \
".previous" \
: "=m" (x) , "=&d" (err) \
: "m" (*(const __u64*)(ptr)),"K" (-EFAULT) \
: "cc", "2", "4" ); \
#ifndef __s390x__
#define __get_user_asm_8(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 2,%1\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: mvc 0(8,2),0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err), "=m" (x) \
: "m" (*(const __u64*)(ptr)),"K" (-EFAULT) \
: "cc", "2", "4" ); \
})
#define __get_user_asm_4(x, ptr, err) \
({ \
__asm__ __volatile__ ( " sr %1,%1\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: l %0,0(4)\n" \
" sacf 0\n" \
"1:\n" \
".section .fixup,\"ax\"\n" \
"2: sacf 0\n" \
" lhi %1,%h3\n" \
" bras 4,3f\n" \
" .long 1b\n" \
"3: l 4,0(4)\n" \
" br 4\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
" .long 0b,2b\n" \
".previous" \
: "=d" (x) , "=&d" (err) \
: "m" (*(const __u32*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
#else /* __s390x__ */
#define __get_user_asm_8(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: lg %1,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err), "=d" (x) \
: "m" (*(const __u64*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
})
#define __get_user_asm_2(x, ptr, err) \
({ \
__asm__ __volatile__ ( " sr %1,%1\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: lh %0,0(4)\n" \
" sacf 0\n" \
"1:\n" \
".section .fixup,\"ax\"\n" \
"2: sacf 0\n" \
" lhi %1,%h3\n" \
" bras 4,3f\n" \
" .long 1b\n" \
"3: l 4,0(4)\n" \
" br 4\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
" .long 0b,2b\n" \
".previous" \
: "=d" (x) , "=&d" (err) \
: "m" (*(const __u16*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
#endif /* __s390x__ */
#define __get_user_asm_4(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: l %1,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err), "=d" (x) \
: "m" (*(const __u32*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
})
#define __get_user_asm_1(x, ptr, err) \
({ \
__asm__ __volatile__ ( " sr %1,%1\n" \
" la 4,%2\n" \
" sr %0,%0\n" \
" sacf 512\n" \
"0: ic %0,0(4)\n" \
" sacf 0\n" \
"1:\n" \
".section .fixup,\"ax\"\n" \
"2: sacf 0\n" \
" lhi %1,%h3\n" \
" bras 4,3f\n" \
" .long 1b\n" \
"3: l 4,0(4)\n" \
" br 4\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
" .align 4\n" \
" .long 0b,2b\n" \
".previous" \
: "=d" (x) , "=&d" (err) \
: "m" (*(const __u8*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
#define __get_user_asm_2(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%2\n" \
" sacf 512\n" \
"0: lh %1,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err), "=d" (x) \
: "m" (*(const __u16*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
})
#define __get_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x; \
int __gu_err; \
switch (sizeof(*(ptr))) { \
case 1: \
__get_user_asm_1(__x, ptr, __gu_err); \
break; \
case 2: \
__get_user_asm_2(__x, ptr, __gu_err); \
break; \
case 4: \
__get_user_asm_4(__x, ptr, __gu_err); \
break; \
case 8: \
__get_user_asm_8(__x, ptr, __gu_err); \
break; \
default: \
__x = 0; \
__gu_err = __get_user_bad(); \
break; \
} \
(x) = __x; \
__gu_err; \
#define __get_user_asm_1(x, ptr, err) \
({ \
__asm__ __volatile__ ( \
" sr %0,%0\n" \
" la 4,%2\n" \
" sr %1,%1\n" \
" sacf 512\n" \
"0: ic %1,0(4)\n" \
" sacf 0\n" \
"1:\n" \
__uaccess_fixup \
: "=&d" (err), "=d" (x) \
: "m" (*(const __u8*)(ptr)),"K" (-EFAULT) \
: "cc", "4" ); \
})
#define __get_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x; \
int __gu_err; \
switch (sizeof(*(ptr))) { \
case 1: \
__get_user_asm_1(__x, ptr, __gu_err); \
break; \
case 2: \
__get_user_asm_2(__x, ptr, __gu_err); \
break; \
case 4: \
__get_user_asm_4(__x, ptr, __gu_err); \
break; \
case 8: \
__get_user_asm_8(__x, ptr, __gu_err); \
break; \
default: \
__x = 0; \
__gu_err = __get_user_bad(); \
break; \
} \
(x) = __x; \
__gu_err; \
})
#define get_user(x, ptr) __get_user(x, ptr)
......@@ -357,7 +334,8 @@ extern int __put_user_bad(void);
extern int __get_user_bad(void);
/*
* access register are set up, that 4 points to secondary (user) , 2 to primary (kernel)
* access register are set up, that 4 points to secondary (user),
* 2 to primary (kernel)
*/
extern long __copy_to_user_asm(const void *from, long n, const void *to);
......@@ -402,42 +380,81 @@ extern long __copy_from_user_asm(void *to, long n, const void *from);
* Copy a null terminated string from userspace.
*/
#ifndef __s390x__
static inline long
__strncpy_from_user(char *dst, const char *src, long count)
{
int len;
__asm__ __volatile__ ( " slr %0,%0\n"
" lr 2,%1\n"
" lr 4,%2\n"
" slr 3,3\n"
" sacf 512\n"
"0: ic 3,0(%0,4)\n"
"1: stc 3,0(%0,2)\n"
" ltr 3,3\n"
" jz 2f\n"
" ahi %0,1\n"
" clr %0,%3\n"
" jl 0b\n"
"2: sacf 0\n"
".section .fixup,\"ax\"\n"
"3: lhi %0,%h4\n"
" basr 3,0\n"
" l 3,4f-.(3)\n"
" br 3\n"
"4: .long 2b\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,3b\n"
" .long 1b,3b\n"
".previous"
: "=&a" (len)
: "a" (dst), "d" (src), "d" (count),
"K" (-EFAULT)
: "2", "3", "4", "memory", "cc" );
return len;
__asm__ __volatile__ (
" slr %0,%0\n"
" lr 2,%1\n"
" lr 4,%2\n"
" slr 3,3\n"
" sacf 512\n"
"0: ic 3,0(%0,4)\n"
"1: stc 3,0(%0,2)\n"
" ltr 3,3\n"
" jz 2f\n"
" ahi %0,1\n"
" clr %0,%3\n"
" jl 0b\n"
"2: sacf 0\n"
".section .fixup,\"ax\"\n"
"3: lhi %0,%h4\n"
" basr 3,0\n"
" l 3,4f-.(3)\n"
" br 3\n"
"4: .long 2b\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,3b\n"
" .long 1b,3b\n"
".previous"
: "=&a" (len)
: "a" (dst), "d" (src), "d" (count), "K" (-EFAULT)
: "2", "3", "4", "memory", "cc" );
return len;
}
#else /* __s390x__ */
static inline long
__strncpy_from_user(char *dst, const char *src, long count)
{
long len;
__asm__ __volatile__ (
" slgr %0,%0\n"
" lgr 2,%1\n"
" lgr 4,%2\n"
" slr 3,3\n"
" sacf 512\n"
"0: ic 3,0(%0,4)\n"
"1: stc 3,0(%0,2)\n"
" ltr 3,3\n"
" jz 2f\n"
" aghi %0,1\n"
" cgr %0,%3\n"
" jl 0b\n"
"2: sacf 0\n"
".section .fixup,\"ax\"\n"
"3: lghi %0,%h4\n"
" jg 2b\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 8\n"
" .quad 0b,3b\n"
" .quad 1b,3b\n"
".previous"
: "=&a" (len)
: "a" (dst), "d" (src), "d" (count), "K" (-EFAULT)
: "cc", "2" ,"3", "4" );
return len;
}
#endif /* __s390x__ */
static inline long
strncpy_from_user(char *dst, const char *src, long count)
{
......@@ -453,35 +470,92 @@ strncpy_from_user(char *dst, const char *src, long count)
*
* Return 0 for error
*/
#ifndef __s390x__
static inline unsigned long
strnlen_user(const char * src, unsigned long n)
{
__asm__ __volatile__ (
" alr %0,%1\n"
" slr 0,0\n"
" lr 4,%1\n"
" sacf 512\n"
"0: srst %0,4\n"
" jo 0b\n"
" slr %0,%1\n"
" ahi %0,1\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" slr %0,%0\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "+&a" (n) : "d" (src)
: "cc", "0", "4" );
return n;
}
#else /* __s390x__ */
static inline unsigned long
strnlen_user(const char * src, unsigned long n)
{
__asm__ __volatile__ (" alr %0,%1\n"
" slr 0,0\n"
" lr 4,%1\n"
" sacf 512\n"
"0: srst %0,4\n"
" jo 0b\n"
" slr %0,%1\n"
" ahi %0,1\n"
" sacf 0\n"
"1:\n"
".section .fixup,\"ax\"\n"
"2: sacf 0\n"
" slr %0,%0\n"
" bras 4,3f\n"
" .long 1b\n"
"3: l 4,0(4)\n"
" br 4\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 4\n"
" .long 0b,2b\n"
".previous"
: "+&a" (n) : "d" (src)
: "cc", "0", "4" );
return n;
#if 0
__asm__ __volatile__ (
" algr %0,%1\n"
" slgr 0,0\n"
" lgr 4,%1\n"
" sacf 512\n"
"0: srst %0,4\n"
" jo 0b\n"
" slgr %0,%1\n"
" aghi %0,1\n"
"1: sacf 0\n"
".section .fixup,\"ax\"\n"
"2: slgr %0,%0\n"
" jg 1b\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 8\n"
" .quad 0b,2b\n"
".previous"
: "+&a" (n) : "d" (src)
: "cc", "0", "4" );
#else
__asm__ __volatile__ (
" lgr 4,%1\n"
" sacf 512\n"
"0: cli 0(4),0x00\n"
" la 4,1(4)\n"
" je 1f\n"
" brctg %0,0b\n"
"1: lgr %0,4\n"
" slgr %0,%1\n"
"2: sacf 0\n"
".section .fixup,\"ax\"\n"
"3: slgr %0,%0\n"
" jg 2b\n"
".previous\n"
".section __ex_table,\"a\"\n"
" .align 8\n"
" .quad 0b,3b\n"
".previous"
: "+&a" (n) : "d" (src)
: "cc", "4" );
#endif
return n;
}
#endif /* __s390x__ */
#define strlen_user(str) strnlen_user(str, ~0UL)
/*
......@@ -490,18 +564,18 @@ strnlen_user(const char * src, unsigned long n)
extern long __clear_user_asm(void *to, long n);
#define __clear_user(to, n) \
({ \
__clear_user_asm(to, n); \
#define __clear_user(to, n) \
({ \
__clear_user_asm(to, n); \
})
static inline unsigned long
clear_user(void *to, unsigned long n)
{
if (access_ok(VERIFY_WRITE, to, n))
n = __clear_user(to, n);
return n;
if (access_ok(VERIFY_WRITE, to, n))
n = __clear_user(to, n);
return n;
}
#endif /* _S390_UACCESS_H */
#endif /* _S390_UACCESS_H */
include/asm-s390/unistd.h
View file @ 06da5d99
......@@ -261,6 +261,91 @@
#define NR_syscalls 263
/*
* There are some system calls that are not present on 64 bit, some
* have a different name although they do the same (e.g. __NR_chown32
* is __NR_chown on 64 bit).
*/
#ifdef __s390x__
#undef __NR_time
#undef __NR_lchown
#undef __NR_setuid
#undef __NR_getuid
#undef __NR_stime
#undef __NR_setgid
#undef __NR_getgid
#undef __NR_geteuid
#undef __NR_getegid
#undef __NR_setreuid
#undef __NR_setregid
#undef __NR_getrlimit
#undef __NR_getgroups
#undef __NR_setgroups
#undef __NR_fchown
#undef __NR_ioperm
#undef __NR_setfsuid
#undef __NR_setfsgid
#undef __NR__llseek
#undef __NR__newselect
#undef __NR_setresuid
#undef __NR_getresuid
#undef __NR_setresgid
#undef __NR_getresgid
#undef __NR_chown
#undef __NR_ugetrlimit
#undef __NR_mmap2
#undef __NR_truncate64
#undef __NR_ftruncate64
#undef __NR_stat64
#undef __NR_lstat64
#undef __NR_fstat64
#undef __NR_lchown32
#undef __NR_getuid32
#undef __NR_getgid32
#undef __NR_geteuid32
#undef __NR_getegid32
#undef __NR_setreuid32
#undef __NR_setregid32
#undef __NR_getgroups32
#undef __NR_setgroups32
#undef __NR_fchown32
#undef __NR_setresuid32
#undef __NR_getresuid32
#undef __NR_setresgid32
#undef __NR_getresgid32
#undef __NR_chown32
#undef __NR_setuid32
#undef __NR_setgid32
#undef __NR_setfsuid32
#undef __NR_setfsgid32
#undef __NR_getdents64
#undef __NR_fcntl64
#undef __NR_sendfile64
#define __NR_select 142
#define __NR_getrlimit 191 /* SuS compliant getrlimit */
#define __NR_lchown 198
#define __NR_getuid 199
#define __NR_getgid 200
#define __NR_geteuid 201
#define __NR_getegid 202
#define __NR_setreuid 203
#define __NR_setregid 204
#define __NR_getgroups 205
#define __NR_setgroups 206
#define __NR_fchown 207
#define __NR_setresuid 208
#define __NR_getresuid 209
#define __NR_setresgid 210
#define __NR_getresgid 211
#define __NR_chown 212
#define __NR_setuid 213
#define __NR_setgid 214
#define __NR_setfsuid 215
#define __NR_setfsgid 216
#endif
/* user-visible error numbers are in the range -1 - -122: see <asm-s390/errno.h> */
#define __syscall_return(type, res) \
......@@ -279,10 +364,10 @@ type name(void) { \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......@@ -298,10 +383,10 @@ type name(type1 arg1) { \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......@@ -319,10 +404,10 @@ type name(type1 arg1, type2 arg2) { \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......@@ -342,10 +427,10 @@ type name(type1 arg1, type2 arg2, type3 arg3) { \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......@@ -368,10 +453,10 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......@@ -397,10 +482,10 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
register long __svcres asm("2"); \
long __res; \
__asm__ __volatile__ ( \
" .if %b1 < 256\n" \
" .if %1 < 256\n" \
" svc %b1\n" \
" .else\n" \
" lhi %%r1,%b1\n" \
" la %%r1,%1\n" \
" svc 0\n" \
" .endif" \
: "=d" (__svcres) \
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7