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-rw-r--r--include/asm-s390/atomic.h2
-rw-r--r--include/asm-s390/cache.h1
-rw-r--r--include/asm-s390/elf.h2
-rw-r--r--include/asm-s390/futex.h49
-rw-r--r--include/asm-s390/ioctl.h89
-rw-r--r--include/asm-s390/kexec.h5
-rw-r--r--include/asm-s390/mutex.h9
-rw-r--r--include/asm-s390/processor.h8
-rw-r--r--include/asm-s390/s390_rdev.h2
-rw-r--r--include/asm-s390/sigcontext.h2
-rw-r--r--include/asm-s390/system.h15
-rw-r--r--include/asm-s390/thread_info.h2
12 files changed, 37 insertions, 149 deletions
diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h
index d82aedf616f..be6fefe223d 100644
--- a/include/asm-s390/atomic.h
+++ b/include/asm-s390/atomic.h
@@ -75,6 +75,8 @@ static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v)
__CS_LOOP(v, mask, "or");
}
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
{
__asm__ __volatile__(" cs %0,%3,0(%2)\n"
diff --git a/include/asm-s390/cache.h b/include/asm-s390/cache.h
index 29845378b20..e20cdd9074d 100644
--- a/include/asm-s390/cache.h
+++ b/include/asm-s390/cache.h
@@ -13,7 +13,6 @@
#define L1_CACHE_BYTES 256
#define L1_CACHE_SHIFT 8
-#define L1_CACHE_SHIFT_MAX 8 /* largest L1 which this arch supports */
#define ARCH_KMALLOC_MINALIGN 8
diff --git a/include/asm-s390/elf.h b/include/asm-s390/elf.h
index 372d51cccd5..710646e64f7 100644
--- a/include/asm-s390/elf.h
+++ b/include/asm-s390/elf.h
@@ -163,7 +163,7 @@ static inline int dump_regs(struct pt_regs *ptregs, elf_gregset_t *regs)
static inline int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
{
- struct pt_regs *ptregs = __KSTK_PTREGS(tsk);
+ struct pt_regs *ptregs = task_pt_regs(tsk);
memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
memcpy(regs->acrs, tsk->thread.acrs, sizeof(regs->acrs));
regs->orig_gpr2 = ptregs->orig_gpr2;
diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h
index 9feff4ce142..6a332a9f099 100644
--- a/include/asm-s390/futex.h
+++ b/include/asm-s390/futex.h
@@ -1,53 +1,6 @@
#ifndef _ASM_FUTEX_H
#define _ASM_FUTEX_H
-#ifdef __KERNEL__
+#include <asm-generic/futex.h>
-#include <linux/futex.h>
-#include <asm/errno.h>
-#include <asm/uaccess.h>
-
-static inline int
-futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
-{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
- int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- inc_preempt_count();
-
- switch (op) {
- case FUTEX_OP_SET:
- case FUTEX_OP_ADD:
- case FUTEX_OP_OR:
- case FUTEX_OP_ANDN:
- case FUTEX_OP_XOR:
- default:
- ret = -ENOSYS;
- }
-
- dec_preempt_count();
-
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
- return ret;
-}
-
-#endif
#endif
diff --git a/include/asm-s390/ioctl.h b/include/asm-s390/ioctl.h
index df7394345ac..b279fe06dfe 100644
--- a/include/asm-s390/ioctl.h
+++ b/include/asm-s390/ioctl.h
@@ -1,88 +1 @@
-/*
- * include/asm-s390/ioctl.h
- *
- * S390 version
- *
- * Derived from "include/asm-i386/ioctl.h"
- */
-
-#ifndef _S390_IOCTL_H
-#define _S390_IOCTL_H
-
-/* ioctl command encoding: 32 bits total, command in lower 16 bits,
- * size of the parameter structure in the lower 14 bits of the
- * upper 16 bits.
- * Encoding the size of the parameter structure in the ioctl request
- * is useful for catching programs compiled with old versions
- * and to avoid overwriting user space outside the user buffer area.
- * The highest 2 bits are reserved for indicating the ``access mode''.
- * NOTE: This limits the max parameter size to 16kB -1 !
- */
-
-/*
- * The following is for compatibility across the various Linux
- * platforms. The i386 ioctl numbering scheme doesn't really enforce
- * a type field. De facto, however, the top 8 bits of the lower 16
- * bits are indeed used as a type field, so we might just as well make
- * this explicit here. Please be sure to use the decoding macros
- * below from now on.
- */
-#define _IOC_NRBITS 8
-#define _IOC_TYPEBITS 8
-#define _IOC_SIZEBITS 14
-#define _IOC_DIRBITS 2
-
-#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1)
-#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1)
-#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1)
-#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1)
-
-#define _IOC_NRSHIFT 0
-#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS)
-#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS)
-#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS)
-
-/*
- * Direction bits.
- */
-#define _IOC_NONE 0U
-#define _IOC_WRITE 1U
-#define _IOC_READ 2U
-
-#define _IOC(dir,type,nr,size) \
- (((dir) << _IOC_DIRSHIFT) | \
- ((type) << _IOC_TYPESHIFT) | \
- ((nr) << _IOC_NRSHIFT) | \
- ((size) << _IOC_SIZESHIFT))
-
-/* provoke compile error for invalid uses of size argument */
-extern unsigned long __invalid_size_argument_for_IOC;
-#define _IOC_TYPECHECK(t) \
- ((sizeof(t) == sizeof(t[1]) && \
- sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
- sizeof(t) : __invalid_size_argument_for_IOC)
-
-/* used to create numbers */
-#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0)
-#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOR_BAD(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size))
-#define _IOW_BAD(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
-#define _IOWR_BAD(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
-
-/* used to decode ioctl numbers.. */
-#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
-#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
-#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
-#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
-
-/* ...and for the drivers/sound files... */
-
-#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT)
-#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT)
-#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
-#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT)
-#define IOCSIZE_SHIFT (_IOC_SIZESHIFT)
-
-#endif /* _S390_IOCTL_H */
+#include <asm-generic/ioctl.h>
diff --git a/include/asm-s390/kexec.h b/include/asm-s390/kexec.h
index 54cf7d9f251..ce28ddda0f5 100644
--- a/include/asm-s390/kexec.h
+++ b/include/asm-s390/kexec.h
@@ -35,8 +35,9 @@
#define KEXEC_ARCH KEXEC_ARCH_S390
#define MAX_NOTE_BYTES 1024
-typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
-extern note_buf_t crash_notes[];
+/* Provide a dummy definition to avoid build failures. */
+static inline void crash_setup_regs(struct pt_regs *newregs,
+ struct pt_regs *oldregs) { }
#endif /*_S390_KEXEC_H */
diff --git a/include/asm-s390/mutex.h b/include/asm-s390/mutex.h
new file mode 100644
index 00000000000..458c1f7fbc1
--- /dev/null
+++ b/include/asm-s390/mutex.h
@@ -0,0 +1,9 @@
+/*
+ * Pull in the generic implementation for the mutex fastpath.
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+
+#include <asm-generic/mutex-dec.h>
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index 4ec652ebb3b..c5cbc4bd841 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -191,10 +191,10 @@ extern void show_registers(struct pt_regs *regs);
extern void show_trace(struct task_struct *task, unsigned long *sp);
unsigned long get_wchan(struct task_struct *p);
-#define __KSTK_PTREGS(tsk) ((struct pt_regs *) \
- ((unsigned long) tsk->thread_info + THREAD_SIZE - sizeof(struct pt_regs)))
-#define KSTK_EIP(tsk) (__KSTK_PTREGS(tsk)->psw.addr)
-#define KSTK_ESP(tsk) (__KSTK_PTREGS(tsk)->gprs[15])
+#define task_pt_regs(tsk) ((struct pt_regs *) \
+ (task_stack_page(tsk) + THREAD_SIZE) - 1)
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->psw.addr)
+#define KSTK_ESP(tsk) (task_pt_regs(tsk)->gprs[15])
/*
* Give up the time slice of the virtual PU.
diff --git a/include/asm-s390/s390_rdev.h b/include/asm-s390/s390_rdev.h
index 3ad78f2b9c4..6fa20442a48 100644
--- a/include/asm-s390/s390_rdev.h
+++ b/include/asm-s390/s390_rdev.h
@@ -2,7 +2,7 @@
* include/asm-s390/ccwdev.h
*
* Copyright (C) 2002,2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Cornelia Huck <cohuck@de.ibm.com>
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
* Carsten Otte <cotte@de.ibm.com>
*
* Interface for s390 root device
diff --git a/include/asm-s390/sigcontext.h b/include/asm-s390/sigcontext.h
index 803545351dd..aeb6e0b1332 100644
--- a/include/asm-s390/sigcontext.h
+++ b/include/asm-s390/sigcontext.h
@@ -8,6 +8,8 @@
#ifndef _ASM_S390_SIGCONTEXT_H
#define _ASM_S390_SIGCONTEXT_H
+#include <linux/compiler.h>
+
#define __NUM_GPRS 16
#define __NUM_FPRS 16
#define __NUM_ACRS 16
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index 864cae7e1fd..b2e65e8bf81 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -104,14 +104,25 @@ static inline void restore_access_regs(unsigned int *acrs)
prev = __switch_to(prev,next); \
} while (0)
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
+
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-extern void account_user_vtime(struct task_struct *);
+extern void account_vtime(struct task_struct *);
+extern void account_tick_vtime(struct task_struct *);
extern void account_system_vtime(struct task_struct *);
#endif
#define finish_arch_switch(prev) do { \
set_fs(current->thread.mm_segment); \
- account_system_vtime(prev); \
+ account_vtime(prev); \
} while (0)
#define nop() __asm__ __volatile__ ("nop")
diff --git a/include/asm-s390/thread_info.h b/include/asm-s390/thread_info.h
index 6c18a3f2431..f3797a52c4e 100644
--- a/include/asm-s390/thread_info.h
+++ b/include/asm-s390/thread_info.h
@@ -81,8 +81,6 @@ static inline struct thread_info *current_thread_info(void)
#define alloc_thread_info(tsk) ((struct thread_info *) \
__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
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