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-rw-r--r--include/asm-s390/system.h462
1 files changed, 0 insertions, 462 deletions
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
deleted file mode 100644
index 819e7d99ca0c..000000000000
--- a/include/asm-s390/system.h
+++ /dev/null
@@ -1,462 +0,0 @@
-/*
- * include/asm-s390/system.h
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *
- * Derived from "include/asm-i386/system.h"
- */
-
-#ifndef __ASM_SYSTEM_H
-#define __ASM_SYSTEM_H
-
-#include <linux/kernel.h>
-#include <asm/types.h>
-#include <asm/ptrace.h>
-#include <asm/setup.h>
-#include <asm/processor.h>
-#include <asm/lowcore.h>
-
-#ifdef __KERNEL__
-
-struct task_struct;
-
-extern struct task_struct *__switch_to(void *, void *);
-
-static inline void save_fp_regs(s390_fp_regs *fpregs)
-{
- asm volatile(
- " std 0,8(%1)\n"
- " std 2,24(%1)\n"
- " std 4,40(%1)\n"
- " std 6,56(%1)"
- : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
- if (!MACHINE_HAS_IEEE)
- return;
- asm volatile(
- " stfpc 0(%1)\n"
- " std 1,16(%1)\n"
- " std 3,32(%1)\n"
- " std 5,48(%1)\n"
- " std 7,64(%1)\n"
- " std 8,72(%1)\n"
- " std 9,80(%1)\n"
- " std 10,88(%1)\n"
- " std 11,96(%1)\n"
- " std 12,104(%1)\n"
- " std 13,112(%1)\n"
- " std 14,120(%1)\n"
- " std 15,128(%1)\n"
- : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
-}
-
-static inline void restore_fp_regs(s390_fp_regs *fpregs)
-{
- asm volatile(
- " ld 0,8(%0)\n"
- " ld 2,24(%0)\n"
- " ld 4,40(%0)\n"
- " ld 6,56(%0)"
- : : "a" (fpregs), "m" (*fpregs));
- if (!MACHINE_HAS_IEEE)
- return;
- asm volatile(
- " lfpc 0(%0)\n"
- " ld 1,16(%0)\n"
- " ld 3,32(%0)\n"
- " ld 5,48(%0)\n"
- " ld 7,64(%0)\n"
- " ld 8,72(%0)\n"
- " ld 9,80(%0)\n"
- " ld 10,88(%0)\n"
- " ld 11,96(%0)\n"
- " ld 12,104(%0)\n"
- " ld 13,112(%0)\n"
- " ld 14,120(%0)\n"
- " ld 15,128(%0)\n"
- : : "a" (fpregs), "m" (*fpregs));
-}
-
-static inline void save_access_regs(unsigned int *acrs)
-{
- asm volatile("stam 0,15,0(%0)" : : "a" (acrs) : "memory");
-}
-
-static inline void restore_access_regs(unsigned int *acrs)
-{
- asm volatile("lam 0,15,0(%0)" : : "a" (acrs));
-}
-
-#define switch_to(prev,next,last) do { \
- if (prev == next) \
- break; \
- save_fp_regs(&prev->thread.fp_regs); \
- restore_fp_regs(&next->thread.fp_regs); \
- save_access_regs(&prev->thread.acrs[0]); \
- restore_access_regs(&next->thread.acrs[0]); \
- prev = __switch_to(prev,next); \
-} while (0)
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-extern void account_vtime(struct task_struct *);
-extern void account_tick_vtime(struct task_struct *);
-extern void account_system_vtime(struct task_struct *);
-#else
-#define account_vtime(x) do { /* empty */ } while (0)
-#endif
-
-#ifdef CONFIG_PFAULT
-extern void pfault_irq_init(void);
-extern int pfault_init(void);
-extern void pfault_fini(void);
-#else /* CONFIG_PFAULT */
-#define pfault_irq_init() do { } while (0)
-#define pfault_init() ({-1;})
-#define pfault_fini() do { } while (0)
-#endif /* CONFIG_PFAULT */
-
-#ifdef CONFIG_PAGE_STATES
-extern void cmma_init(void);
-#else
-static inline void cmma_init(void) { }
-#endif
-
-#define finish_arch_switch(prev) do { \
- set_fs(current->thread.mm_segment); \
- account_vtime(prev); \
-} while (0)
-
-#define nop() asm volatile("nop")
-
-#define xchg(ptr,x) \
-({ \
- __typeof__(*(ptr)) __ret; \
- __ret = (__typeof__(*(ptr))) \
- __xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \
- __ret; \
-})
-
-extern void __xchg_called_with_bad_pointer(void);
-
-static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
-{
- unsigned long addr, old;
- int shift;
-
- switch (size) {
- case 1:
- addr = (unsigned long) ptr;
- shift = (3 ^ (addr & 3)) << 3;
- addr ^= addr & 3;
- asm volatile(
- " l %0,0(%4)\n"
- "0: lr 0,%0\n"
- " nr 0,%3\n"
- " or 0,%2\n"
- " cs %0,0,0(%4)\n"
- " jl 0b\n"
- : "=&d" (old), "=m" (*(int *) addr)
- : "d" (x << shift), "d" (~(255 << shift)), "a" (addr),
- "m" (*(int *) addr) : "memory", "cc", "0");
- return old >> shift;
- case 2:
- addr = (unsigned long) ptr;
- shift = (2 ^ (addr & 2)) << 3;
- addr ^= addr & 2;
- asm volatile(
- " l %0,0(%4)\n"
- "0: lr 0,%0\n"
- " nr 0,%3\n"
- " or 0,%2\n"
- " cs %0,0,0(%4)\n"
- " jl 0b\n"
- : "=&d" (old), "=m" (*(int *) addr)
- : "d" (x << shift), "d" (~(65535 << shift)), "a" (addr),
- "m" (*(int *) addr) : "memory", "cc", "0");
- return old >> shift;
- case 4:
- asm volatile(
- " l %0,0(%3)\n"
- "0: cs %0,%2,0(%3)\n"
- " jl 0b\n"
- : "=&d" (old), "=m" (*(int *) ptr)
- : "d" (x), "a" (ptr), "m" (*(int *) ptr)
- : "memory", "cc");
- return old;
-#ifdef __s390x__
- case 8:
- asm volatile(
- " lg %0,0(%3)\n"
- "0: csg %0,%2,0(%3)\n"
- " jl 0b\n"
- : "=&d" (old), "=m" (*(long *) ptr)
- : "d" (x), "a" (ptr), "m" (*(long *) ptr)
- : "memory", "cc");
- return old;
-#endif /* __s390x__ */
- }
- __xchg_called_with_bad_pointer();
- return x;
-}
-
-/*
- * Atomic compare and exchange. Compare OLD with MEM, if identical,
- * store NEW in MEM. Return the initial value in MEM. Success is
- * indicated by comparing RETURN with OLD.
- */
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-#define cmpxchg(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
- (unsigned long)(n), sizeof(*(ptr))))
-
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-static inline unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
-{
- unsigned long addr, prev, tmp;
- int shift;
-
- switch (size) {
- case 1:
- addr = (unsigned long) ptr;
- shift = (3 ^ (addr & 3)) << 3;
- addr ^= addr & 3;
- asm volatile(
- " l %0,0(%4)\n"
- "0: nr %0,%5\n"
- " lr %1,%0\n"
- " or %0,%2\n"
- " or %1,%3\n"
- " cs %0,%1,0(%4)\n"
- " jnl 1f\n"
- " xr %1,%0\n"
- " nr %1,%5\n"
- " jnz 0b\n"
- "1:"
- : "=&d" (prev), "=&d" (tmp)
- : "d" (old << shift), "d" (new << shift), "a" (ptr),
- "d" (~(255 << shift))
- : "memory", "cc");
- return prev >> shift;
- case 2:
- addr = (unsigned long) ptr;
- shift = (2 ^ (addr & 2)) << 3;
- addr ^= addr & 2;
- asm volatile(
- " l %0,0(%4)\n"
- "0: nr %0,%5\n"
- " lr %1,%0\n"
- " or %0,%2\n"
- " or %1,%3\n"
- " cs %0,%1,0(%4)\n"
- " jnl 1f\n"
- " xr %1,%0\n"
- " nr %1,%5\n"
- " jnz 0b\n"
- "1:"
- : "=&d" (prev), "=&d" (tmp)
- : "d" (old << shift), "d" (new << shift), "a" (ptr),
- "d" (~(65535 << shift))
- : "memory", "cc");
- return prev >> shift;
- case 4:
- asm volatile(
- " cs %0,%2,0(%3)\n"
- : "=&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__ */
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-/*
- * Force strict CPU ordering.
- * And yes, this is required on UP too when we're talking
- * to devices.
- *
- * This is very similar to the ppc eieio/sync instruction in that is
- * does a checkpoint syncronisation & makes sure that
- * all memory ops have completed wrt other CPU's ( see 7-15 POP DJB ).
- */
-
-#define eieio() asm volatile("bcr 15,0" : : : "memory")
-#define SYNC_OTHER_CORES(x) eieio()
-#define mb() eieio()
-#define rmb() eieio()
-#define wmb() eieio()
-#define read_barrier_depends() do { } while(0)
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-#define smp_read_barrier_depends() read_barrier_depends()
-#define smp_mb__before_clear_bit() smp_mb()
-#define smp_mb__after_clear_bit() smp_mb()
-
-
-#define set_mb(var, value) do { var = value; mb(); } while (0)
-
-#ifdef __s390x__
-
-#define __ctl_load(array, low, high) ({ \
- typedef struct { char _[sizeof(array)]; } addrtype; \
- asm volatile( \
- " lctlg %1,%2,0(%0)\n" \
- : : "a" (&array), "i" (low), "i" (high), \
- "m" (*(addrtype *)(&array))); \
- })
-
-#define __ctl_store(array, low, high) ({ \
- typedef struct { char _[sizeof(array)]; } addrtype; \
- asm volatile( \
- " stctg %2,%3,0(%1)\n" \
- : "=m" (*(addrtype *)(&array)) \
- : "a" (&array), "i" (low), "i" (high)); \
- })
-
-#else /* __s390x__ */
-
-#define __ctl_load(array, low, high) ({ \
- typedef struct { char _[sizeof(array)]; } addrtype; \
- asm volatile( \
- " lctl %1,%2,0(%0)\n" \
- : : "a" (&array), "i" (low), "i" (high), \
- "m" (*(addrtype *)(&array))); \
-})
-
-#define __ctl_store(array, low, high) ({ \
- typedef struct { char _[sizeof(array)]; } addrtype; \
- asm volatile( \
- " stctl %2,%3,0(%1)\n" \
- : "=m" (*(addrtype *)(&array)) \
- : "a" (&array), "i" (low), "i" (high)); \
- })
-
-#endif /* __s390x__ */
-
-#define __ctl_set_bit(cr, bit) ({ \
- unsigned long __dummy; \
- __ctl_store(__dummy, cr, cr); \
- __dummy |= 1UL << (bit); \
- __ctl_load(__dummy, cr, cr); \
-})
-
-#define __ctl_clear_bit(cr, bit) ({ \
- unsigned long __dummy; \
- __ctl_store(__dummy, cr, cr); \
- __dummy &= ~(1UL << (bit)); \
- __ctl_load(__dummy, cr, cr); \
-})
-
-#include <linux/irqflags.h>
-
-#include <asm-generic/cmpxchg-local.h>
-
-static inline unsigned long __cmpxchg_local(volatile void *ptr,
- unsigned long old,
- unsigned long new, int size)
-{
- switch (size) {
- case 1:
- case 2:
- case 4:
-#ifdef __s390x__
- case 8:
-#endif
- return __cmpxchg(ptr, old, new, size);
- default:
- return __cmpxchg_local_generic(ptr, old, new, size);
- }
-
- return old;
-}
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
- (unsigned long)(n), sizeof(*(ptr))))
-#ifdef __s390x__
-#define cmpxchg64_local(ptr, o, n) \
- ({ \
- BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
- cmpxchg_local((ptr), (o), (n)); \
- })
-#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-#endif
-
-/*
- * Use to set psw mask except for the first byte which
- * won't be changed by this function.
- */
-static inline void
-__set_psw_mask(unsigned long mask)
-{
- __load_psw_mask(mask | (__raw_local_irq_stosm(0x00) & ~(-1UL >> 8)));
-}
-
-#define local_mcck_enable() __set_psw_mask(psw_kernel_bits)
-#define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
-
-int stfle(unsigned long long *list, int doublewords);
-
-#ifdef CONFIG_SMP
-
-extern void smp_ctl_set_bit(int cr, int bit);
-extern void smp_ctl_clear_bit(int cr, int bit);
-#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
-
-#else
-
-#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
-
-#endif /* CONFIG_SMP */
-
-static inline unsigned int stfl(void)
-{
- asm volatile(
- " .insn s,0xb2b10000,0(0)\n" /* stfl */
- "0:\n"
- EX_TABLE(0b,0b));
- return S390_lowcore.stfl_fac_list;
-}
-
-static inline unsigned short stap(void)
-{
- unsigned short cpu_address;
-
- asm volatile("stap %0" : "=m" (cpu_address));
- return cpu_address;
-}
-
-extern void (*_machine_restart)(char *command);
-extern void (*_machine_halt)(void);
-extern void (*_machine_power_off)(void);
-
-#define arch_align_stack(x) (x)
-
-#ifdef CONFIG_TRACE_IRQFLAGS
-extern psw_t sysc_restore_trace_psw;
-extern psw_t io_restore_trace_psw;
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif
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