Disintegrate asm/system.h for IA64
David Howells [Wed, 28 Mar 2012 17:30:02 +0000 (18:30 +0100)]
Disintegrate asm/system.h for IA64.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
cc: linux-ia64@vger.kernel.org

61 files changed:
arch/ia64/dig/setup.c
arch/ia64/hp/common/sba_iommu.c
arch/ia64/hp/sim/boot/bootloader.c
arch/ia64/hp/sim/boot/fw-emu.c
arch/ia64/hp/sim/simeth.c
arch/ia64/include/asm/acpi.h
arch/ia64/include/asm/atomic.h
arch/ia64/include/asm/auxvec.h
arch/ia64/include/asm/barrier.h [new file with mode: 0644]
arch/ia64/include/asm/exec.h [new file with mode: 0644]
arch/ia64/include/asm/futex.h
arch/ia64/include/asm/io.h
arch/ia64/include/asm/irqflags.h
arch/ia64/include/asm/kexec.h
arch/ia64/include/asm/mca_asm.h
arch/ia64/include/asm/page.h
arch/ia64/include/asm/pci.h
arch/ia64/include/asm/pgtable.h
arch/ia64/include/asm/processor.h
arch/ia64/include/asm/sal.h
arch/ia64/include/asm/setup.h
arch/ia64/include/asm/sn/pda.h
arch/ia64/include/asm/spinlock.h
arch/ia64/include/asm/switch_to.h [new file with mode: 0644]
arch/ia64/include/asm/system.h
arch/ia64/include/asm/uv/uv.h
arch/ia64/kernel/acpi.c
arch/ia64/kernel/efi.c
arch/ia64/kernel/fsys.S
arch/ia64/kernel/gate.S
arch/ia64/kernel/gate.lds.S
arch/ia64/kernel/head.S
arch/ia64/kernel/iosapic.c
arch/ia64/kernel/irq_ia64.c
arch/ia64/kernel/ivt.S
arch/ia64/kernel/machvec.c
arch/ia64/kernel/mca.c
arch/ia64/kernel/mca_drv.c
arch/ia64/kernel/patch.c
arch/ia64/kernel/pci-dma.c
arch/ia64/kernel/perfmon.c
arch/ia64/kernel/ptrace.c
arch/ia64/kernel/setup.c
arch/ia64/kernel/smp.c
arch/ia64/kernel/smpboot.c
arch/ia64/kernel/time.c
arch/ia64/kernel/traps.c
arch/ia64/kernel/uncached.c
arch/ia64/kernel/unwind.c
arch/ia64/kernel/vmlinux.lds.S
arch/ia64/mm/fault.c
arch/ia64/mm/init.c
arch/ia64/oprofile/backtrace.c
arch/ia64/pci/pci.c
arch/ia64/sn/kernel/setup.c
arch/ia64/sn/kernel/sn2/prominfo_proc.c
arch/ia64/sn/kernel/sn2/sn2_smp.c
arch/ia64/sn/kernel/sn2/timer.c
arch/ia64/sn/kernel/tiocx.c
arch/ia64/xen/xensetup.S
include/xen/xen-ops.h

index 9196b33..98131e1 100644 (file)
@@ -22,7 +22,7 @@
 
 #include <asm/io.h>
 #include <asm/machvec.h>
-#include <asm/system.h>
+#include <asm/setup.h>
 
 void __init
 dig_setup (char **cmdline_p)
index f5f4ef1..f6ea3a3 100644 (file)
@@ -43,7 +43,6 @@
 #include <asm/io.h>
 #include <asm/page.h>          /* PAGE_OFFSET */
 #include <asm/dma.h>
-#include <asm/system.h>                /* wmb() */
 
 #include <asm/acpi-ext.h>
 
index c5e9baa..28f4b23 100644 (file)
@@ -20,7 +20,6 @@ struct task_struct;   /* forward declaration for elf.h */
 #include <asm/pal.h>
 #include <asm/pgtable.h>
 #include <asm/sal.h>
-#include <asm/system.h>
 
 #include "ssc.h"
 
index 0216e28..271f412 100644 (file)
@@ -13,6 +13,7 @@
 #include <asm/io.h>
 #include <asm/pal.h>
 #include <asm/sal.h>
+#include <asm/setup.h>
 
 #include "ssc.h"
 
index a63218e..c13064e 100644 (file)
@@ -20,7 +20,6 @@
 #include <linux/skbuff.h>
 #include <linux/notifier.h>
 #include <linux/bitops.h>
-#include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/hpsim.h>
 
index a06dfb1..301609c 100644 (file)
@@ -32,7 +32,6 @@
 
 #include <linux/init.h>
 #include <linux/numa.h>
-#include <asm/system.h>
 #include <asm/numa.h>
 
 #define COMPILER_DEPENDENT_INT64       long
index 3fad89e..7d91166 100644 (file)
@@ -15,7 +15,6 @@
 #include <linux/types.h>
 
 #include <asm/intrinsics.h>
-#include <asm/system.h>
 
 
 #define ATOMIC_INIT(i)         ((atomic_t) { (i) })
index 23cebe5..58277fc 100644 (file)
@@ -8,4 +8,6 @@
 #define AT_SYSINFO     32
 #define AT_SYSINFO_EHDR        33
 
+#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */
+
 #endif /* _ASM_IA64_AUXVEC_H */
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
new file mode 100644 (file)
index 0000000..60576e0
--- /dev/null
@@ -0,0 +1,68 @@
+/*
+ * Memory barrier definitions.  This is based on information published
+ * in the Processor Abstraction Layer and the System Abstraction Layer
+ * manual.
+ *
+ * Copyright (C) 1998-2003 Hewlett-Packard Co
+ *     David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
+ * Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
+ */
+#ifndef _ASM_IA64_BARRIER_H
+#define _ASM_IA64_BARRIER_H
+
+#include <linux/compiler.h>
+
+/*
+ * Macros to force memory ordering.  In these descriptions, "previous"
+ * and "subsequent" refer to program order; "visible" means that all
+ * architecturally visible effects of a memory access have occurred
+ * (at a minimum, this means the memory has been read or written).
+ *
+ *   wmb():    Guarantees that all preceding stores to memory-
+ *             like regions are visible before any subsequent
+ *             stores and that all following stores will be
+ *             visible only after all previous stores.
+ *   rmb():    Like wmb(), but for reads.
+ *   mb():     wmb()/rmb() combo, i.e., all previous memory
+ *             accesses are visible before all subsequent
+ *             accesses and vice versa.  This is also known as
+ *             a "fence."
+ *
+ * Note: "mb()" and its variants cannot be used as a fence to order
+ * accesses to memory mapped I/O registers.  For that, mf.a needs to
+ * be used.  However, we don't want to always use mf.a because (a)
+ * it's (presumably) much slower than mf and (b) mf.a is supported for
+ * sequential memory pages only.
+ */
+#define mb()   ia64_mf()
+#define rmb()  mb()
+#define wmb()  mb()
+#define read_barrier_depends() do { } while(0)
+
+#ifdef CONFIG_SMP
+# define smp_mb()      mb()
+# define smp_rmb()     rmb()
+# define smp_wmb()     wmb()
+# define smp_read_barrier_depends()    read_barrier_depends()
+#else
+# define smp_mb()      barrier()
+# define smp_rmb()     barrier()
+# define smp_wmb()     barrier()
+# define smp_read_barrier_depends()    do { } while(0)
+#endif
+
+/*
+ * XXX check on this ---I suspect what Linus really wants here is
+ * acquire vs release semantics but we can't discuss this stuff with
+ * Linus just yet.  Grrr...
+ */
+#define set_mb(var, value)     do { (var) = (value); mb(); } while (0)
+
+/*
+ * The group barrier in front of the rsm & ssm are necessary to ensure
+ * that none of the previous instructions in the same group are
+ * affected by the rsm/ssm.
+ */
+
+#endif /* _ASM_IA64_BARRIER_H */
diff --git a/arch/ia64/include/asm/exec.h b/arch/ia64/include/asm/exec.h
new file mode 100644 (file)
index 0000000..b262424
--- /dev/null
@@ -0,0 +1,14 @@
+/*
+ * Process execution defines.
+ *
+ * Copyright (C) 1998-2003 Hewlett-Packard Co
+ *     David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
+ * Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
+ */
+#ifndef _ASM_IA64_EXEC_H
+#define _ASM_IA64_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_IA64_EXEC_H */
index 8428525..0ab82cc 100644 (file)
@@ -4,7 +4,6 @@
 #include <linux/futex.h>
 #include <linux/uaccess.h>
 #include <asm/errno.h>
-#include <asm/system.h>
 
 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
 do {                                                                   \
index e5a6c35..2c26321 100644 (file)
@@ -71,7 +71,6 @@ extern unsigned int num_io_spaces;
 #include <asm/intrinsics.h>
 #include <asm/machvec.h>
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm-generic/iomap.h>
 
 /*
index f82d6be..2b68d85 100644 (file)
@@ -10,6 +10,8 @@
 #ifndef _ASM_IA64_IRQFLAGS_H
 #define _ASM_IA64_IRQFLAGS_H
 
+#include <asm/pal.h>
+
 #ifdef CONFIG_IA64_DEBUG_IRQ
 extern unsigned long last_cli_ip;
 static inline void arch_maybe_save_ip(unsigned long flags)
index e1d58f8..aea2b81 100644 (file)
@@ -1,6 +1,7 @@
 #ifndef _ASM_IA64_KEXEC_H
 #define _ASM_IA64_KEXEC_H
 
+#include <asm/setup.h>
 
 /* Maximum physical address we can use pages from */
 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
index dd2a5b1..13c1d49 100644 (file)
@@ -15,6 +15,8 @@
 #ifndef _ASM_IA64_MCA_ASM_H
 #define _ASM_IA64_MCA_ASM_H
 
+#include <asm/percpu.h>
+
 #define PSR_IC         13
 #define PSR_I          14
 #define        PSR_DT          17
index 961a16f..f1e1b2e 100644 (file)
@@ -221,4 +221,14 @@ get_order (unsigned long size)
                                         (((current->personality & READ_IMPLIES_EXEC) != 0)     \
                                          ? VM_EXEC : 0))
 
+#define GATE_ADDR              RGN_BASE(RGN_GATE)
+
+/*
+ * 0xa000000000000000+2*PERCPU_PAGE_SIZE
+ * - 0xa000000000000000+3*PERCPU_PAGE_SIZE remain unmapped (guard page)
+ */
+#define KERNEL_START            (GATE_ADDR+__IA64_UL_CONST(0x100000000))
+#define PERCPU_ADDR            (-PERCPU_PAGE_SIZE)
+#define LOAD_OFFSET            (KERNEL_START - KERNEL_TR_PAGE_SIZE)
+
 #endif /* _ASM_IA64_PAGE_H */
index 279b38a..c5e6da9 100644 (file)
 #include <asm/scatterlist.h>
 #include <asm/hw_irq.h>
 
+struct pci_vector_struct {
+       __u16 segment;  /* PCI Segment number */
+       __u16 bus;      /* PCI Bus number */
+       __u32 pci_id;   /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */
+       __u8 pin;       /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */
+       __u32 irq;      /* IRQ assigned */
+};
+
 /*
  * Can be used to override the logic in pci_scan_bus for skipping already-configured bus
  * numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the
index 1a97af3..815810c 100644 (file)
@@ -16,7 +16,6 @@
 #include <asm/mman.h>
 #include <asm/page.h>
 #include <asm/processor.h>
-#include <asm/system.h>
 #include <asm/types.h>
 
 #define IA64_MAX_PHYS_BITS     50      /* max. number of physical address bits (architected) */
index 691be0b..483f6c6 100644 (file)
@@ -19,6 +19,9 @@
 #include <asm/ptrace.h>
 #include <asm/ustack.h>
 
+#define __ARCH_WANT_UNLOCKED_CTXSW
+#define ARCH_HAS_PREFETCH_SWITCH_STACK
+
 #define IA64_NUM_PHYS_STACK_REG        96
 #define IA64_NUM_DBG_REGS      8
 
@@ -720,6 +723,11 @@ extern unsigned long boot_option_idle_override;
 enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_FORCE_MWAIT,
                         IDLE_NOMWAIT, IDLE_POLL};
 
+void cpu_idle_wait(void);
+void default_idle(void);
+
+#define ia64_platform_is(x) (strcmp(x, platform_name) == 0)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASM_IA64_PROCESSOR_H */
index d19ddba..e504f38 100644 (file)
@@ -40,7 +40,6 @@
 #include <linux/efi.h>
 
 #include <asm/pal.h>
-#include <asm/system.h>
 #include <asm/fpu.h>
 
 extern spinlock_t sal_lock;
index 4399a44..8d56458 100644 (file)
@@ -3,4 +3,22 @@
 
 #define COMMAND_LINE_SIZE      2048
 
+extern struct ia64_boot_param {
+       __u64 command_line;             /* physical address of command line arguments */
+       __u64 efi_systab;               /* physical address of EFI system table */
+       __u64 efi_memmap;               /* physical address of EFI memory map */
+       __u64 efi_memmap_size;          /* size of EFI memory map */
+       __u64 efi_memdesc_size;         /* size of an EFI memory map descriptor */
+       __u32 efi_memdesc_version;      /* memory descriptor version */
+       struct {
+               __u16 num_cols; /* number of columns on console output device */
+               __u16 num_rows; /* number of rows on console output device */
+               __u16 orig_x;   /* cursor's x position */
+               __u16 orig_y;   /* cursor's y position */
+       } console_info;
+       __u64 fpswa;            /* physical address of the fpswa interface */
+       __u64 initrd_start;
+       __u64 initrd_size;
+} *ia64_boot_param;
+
 #endif
index 1c5108d..22ae358 100644 (file)
@@ -10,7 +10,6 @@
 
 #include <linux/cache.h>
 #include <asm/percpu.h>
-#include <asm/system.h>
 
 
 /*
index b77768d..54ff557 100644 (file)
@@ -15,7 +15,6 @@
 
 #include <linux/atomic.h>
 #include <asm/intrinsics.h>
-#include <asm/system.h>
 
 #define arch_spin_lock_init(x)                 ((x)->lock = 0)
 
diff --git a/arch/ia64/include/asm/switch_to.h b/arch/ia64/include/asm/switch_to.h
new file mode 100644 (file)
index 0000000..cb2412f
--- /dev/null
@@ -0,0 +1,87 @@
+/*
+ * Low-level task switching. This is based on information published in
+ * the Processor Abstraction Layer and the System Abstraction Layer
+ * manual.
+ *
+ * Copyright (C) 1998-2003 Hewlett-Packard Co
+ *     David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
+ * Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
+ */
+#ifndef _ASM_IA64_SWITCH_TO_H
+#define _ASM_IA64_SWITCH_TO_H
+
+#include <linux/percpu.h>
+
+struct task_struct;
+
+/*
+ * Context switch from one thread to another.  If the two threads have
+ * different address spaces, schedule() has already taken care of
+ * switching to the new address space by calling switch_mm().
+ *
+ * Disabling access to the fph partition and the debug-register
+ * context switch MUST be done before calling ia64_switch_to() since a
+ * newly created thread returns directly to
+ * ia64_ret_from_syscall_clear_r8.
+ */
+extern struct task_struct *ia64_switch_to (void *next_task);
+
+extern void ia64_save_extra (struct task_struct *task);
+extern void ia64_load_extra (struct task_struct *task);
+
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct *next);
+# define IA64_ACCOUNT_ON_SWITCH(p,n) ia64_account_on_switch(p,n)
+#else
+# define IA64_ACCOUNT_ON_SWITCH(p,n)
+#endif
+
+#ifdef CONFIG_PERFMON
+  DECLARE_PER_CPU(unsigned long, pfm_syst_info);
+# define PERFMON_IS_SYSWIDE() (__get_cpu_var(pfm_syst_info) & 0x1)
+#else
+# define PERFMON_IS_SYSWIDE() (0)
+#endif
+
+#define IA64_HAS_EXTRA_STATE(t)                                                        \
+       ((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)       \
+        || PERFMON_IS_SYSWIDE())
+
+#define __switch_to(prev,next,last) do {                                                        \
+       IA64_ACCOUNT_ON_SWITCH(prev, next);                                                      \
+       if (IA64_HAS_EXTRA_STATE(prev))                                                          \
+               ia64_save_extra(prev);                                                           \
+       if (IA64_HAS_EXTRA_STATE(next))                                                          \
+               ia64_load_extra(next);                                                           \
+       ia64_psr(task_pt_regs(next))->dfh = !ia64_is_local_fpu_owner(next);                      \
+       (last) = ia64_switch_to((next));                                                         \
+} while (0)
+
+#ifdef CONFIG_SMP
+/*
+ * In the SMP case, we save the fph state when context-switching away from a thread that
+ * modified fph.  This way, when the thread gets scheduled on another CPU, the CPU can
+ * pick up the state from task->thread.fph, avoiding the complication of having to fetch
+ * the latest fph state from another CPU.  In other words: eager save, lazy restore.
+ */
+# define switch_to(prev,next,last) do {                                                \
+       if (ia64_psr(task_pt_regs(prev))->mfh && ia64_is_local_fpu_owner(prev)) {                               \
+               ia64_psr(task_pt_regs(prev))->mfh = 0;                  \
+               (prev)->thread.flags |= IA64_THREAD_FPH_VALID;                  \
+               __ia64_save_fpu((prev)->thread.fph);                            \
+       }                                                                       \
+       __switch_to(prev, next, last);                                          \
+       /* "next" in old context is "current" in new context */                 \
+       if (unlikely((current->thread.flags & IA64_THREAD_MIGRATION) &&        \
+                    (task_cpu(current) !=                                     \
+                                     task_thread_info(current)->last_cpu))) { \
+               platform_migrate(current);                                     \
+               task_thread_info(current)->last_cpu = task_cpu(current);       \
+       }                                                                      \
+} while (0)
+#else
+# define switch_to(prev,next,last)     __switch_to(prev, next, last)
+#endif
+
+#endif /* _ASM_IA64_SWITCH_TO_H */
index 6cca307..5b190b4 100644 (file)
@@ -1,203 +1,4 @@
-#ifndef _ASM_IA64_SYSTEM_H
-#define _ASM_IA64_SYSTEM_H
-
-/*
- * System defines. Note that this is included both from .c and .S
- * files, so it does only defines, not any C code.  This is based
- * on information published in the Processor Abstraction Layer
- * and the System Abstraction Layer manual.
- *
- * Copyright (C) 1998-2003 Hewlett-Packard Co
- *     David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
- */
-
-#include <asm/kregs.h>
-#include <asm/page.h>
-#include <asm/pal.h>
-#include <asm/percpu.h>
-
-#define GATE_ADDR              RGN_BASE(RGN_GATE)
-
-/*
- * 0xa000000000000000+2*PERCPU_PAGE_SIZE
- * - 0xa000000000000000+3*PERCPU_PAGE_SIZE remain unmapped (guard page)
- */
-#define KERNEL_START            (GATE_ADDR+__IA64_UL_CONST(0x100000000))
-#define PERCPU_ADDR            (-PERCPU_PAGE_SIZE)
-#define LOAD_OFFSET            (KERNEL_START - KERNEL_TR_PAGE_SIZE)
-
-#ifndef __ASSEMBLY__
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */
-
-struct pci_vector_struct {
-       __u16 segment;  /* PCI Segment number */
-       __u16 bus;      /* PCI Bus number */
-       __u32 pci_id;   /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */
-       __u8 pin;       /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */
-       __u32 irq;      /* IRQ assigned */
-};
-
-extern struct ia64_boot_param {
-       __u64 command_line;             /* physical address of command line arguments */
-       __u64 efi_systab;               /* physical address of EFI system table */
-       __u64 efi_memmap;               /* physical address of EFI memory map */
-       __u64 efi_memmap_size;          /* size of EFI memory map */
-       __u64 efi_memdesc_size;         /* size of an EFI memory map descriptor */
-       __u32 efi_memdesc_version;      /* memory descriptor version */
-       struct {
-               __u16 num_cols; /* number of columns on console output device */
-               __u16 num_rows; /* number of rows on console output device */
-               __u16 orig_x;   /* cursor's x position */
-               __u16 orig_y;   /* cursor's y position */
-       } console_info;
-       __u64 fpswa;            /* physical address of the fpswa interface */
-       __u64 initrd_start;
-       __u64 initrd_size;
-} *ia64_boot_param;
-
-/*
- * Macros to force memory ordering.  In these descriptions, "previous"
- * and "subsequent" refer to program order; "visible" means that all
- * architecturally visible effects of a memory access have occurred
- * (at a minimum, this means the memory has been read or written).
- *
- *   wmb():    Guarantees that all preceding stores to memory-
- *             like regions are visible before any subsequent
- *             stores and that all following stores will be
- *             visible only after all previous stores.
- *   rmb():    Like wmb(), but for reads.
- *   mb():     wmb()/rmb() combo, i.e., all previous memory
- *             accesses are visible before all subsequent
- *             accesses and vice versa.  This is also known as
- *             a "fence."
- *
- * Note: "mb()" and its variants cannot be used as a fence to order
- * accesses to memory mapped I/O registers.  For that, mf.a needs to
- * be used.  However, we don't want to always use mf.a because (a)
- * it's (presumably) much slower than mf and (b) mf.a is supported for
- * sequential memory pages only.
- */
-#define mb()   ia64_mf()
-#define rmb()  mb()
-#define wmb()  mb()
-#define read_barrier_depends() do { } while(0)
-
-#ifdef CONFIG_SMP
-# define smp_mb()      mb()
-# define smp_rmb()     rmb()
-# define smp_wmb()     wmb()
-# define smp_read_barrier_depends()    read_barrier_depends()
-#else
-# define smp_mb()      barrier()
-# define smp_rmb()     barrier()
-# define smp_wmb()     barrier()
-# define smp_read_barrier_depends()    do { } while(0)
-#endif
-
-/*
- * XXX check on this ---I suspect what Linus really wants here is
- * acquire vs release semantics but we can't discuss this stuff with
- * Linus just yet.  Grrr...
- */
-#define set_mb(var, value)     do { (var) = (value); mb(); } while (0)
-
-/*
- * The group barrier in front of the rsm & ssm are necessary to ensure
- * that none of the previous instructions in the same group are
- * affected by the rsm/ssm.
- */
-
-#ifdef __KERNEL__
-
-/*
- * Context switch from one thread to another.  If the two threads have
- * different address spaces, schedule() has already taken care of
- * switching to the new address space by calling switch_mm().
- *
- * Disabling access to the fph partition and the debug-register
- * context switch MUST be done before calling ia64_switch_to() since a
- * newly created thread returns directly to
- * ia64_ret_from_syscall_clear_r8.
- */
-extern struct task_struct *ia64_switch_to (void *next_task);
-
-struct task_struct;
-
-extern void ia64_save_extra (struct task_struct *task);
-extern void ia64_load_extra (struct task_struct *task);
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct *next);
-# define IA64_ACCOUNT_ON_SWITCH(p,n) ia64_account_on_switch(p,n)
-#else
-# define IA64_ACCOUNT_ON_SWITCH(p,n)
-#endif
-
-#ifdef CONFIG_PERFMON
-  DECLARE_PER_CPU(unsigned long, pfm_syst_info);
-# define PERFMON_IS_SYSWIDE() (__get_cpu_var(pfm_syst_info) & 0x1)
-#else
-# define PERFMON_IS_SYSWIDE() (0)
-#endif
-
-#define IA64_HAS_EXTRA_STATE(t)                                                        \
-       ((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)       \
-        || PERFMON_IS_SYSWIDE())
-
-#define __switch_to(prev,next,last) do {                                                        \
-       IA64_ACCOUNT_ON_SWITCH(prev, next);                                                      \
-       if (IA64_HAS_EXTRA_STATE(prev))                                                          \
-               ia64_save_extra(prev);                                                           \
-       if (IA64_HAS_EXTRA_STATE(next))                                                          \
-               ia64_load_extra(next);                                                           \
-       ia64_psr(task_pt_regs(next))->dfh = !ia64_is_local_fpu_owner(next);                      \
-       (last) = ia64_switch_to((next));                                                         \
-} while (0)
-
-#ifdef CONFIG_SMP
-/*
- * In the SMP case, we save the fph state when context-switching away from a thread that
- * modified fph.  This way, when the thread gets scheduled on another CPU, the CPU can
- * pick up the state from task->thread.fph, avoiding the complication of having to fetch
- * the latest fph state from another CPU.  In other words: eager save, lazy restore.
- */
-# define switch_to(prev,next,last) do {                                                \
-       if (ia64_psr(task_pt_regs(prev))->mfh && ia64_is_local_fpu_owner(prev)) {                               \
-               ia64_psr(task_pt_regs(prev))->mfh = 0;                  \
-               (prev)->thread.flags |= IA64_THREAD_FPH_VALID;                  \
-               __ia64_save_fpu((prev)->thread.fph);                            \
-       }                                                                       \
-       __switch_to(prev, next, last);                                          \
-       /* "next" in old context is "current" in new context */                 \
-       if (unlikely((current->thread.flags & IA64_THREAD_MIGRATION) &&        \
-                    (task_cpu(current) !=                                     \
-                                     task_thread_info(current)->last_cpu))) { \
-               platform_migrate(current);                                     \
-               task_thread_info(current)->last_cpu = task_cpu(current);       \
-       }                                                                      \
-} while (0)
-#else
-# define switch_to(prev,next,last)     __switch_to(prev, next, last)
-#endif
-
-#define __ARCH_WANT_UNLOCKED_CTXSW
-#define ARCH_HAS_PREFETCH_SWITCH_STACK
-#define ia64_platform_is(x) (strcmp(x, platform_name) == 0)
-
-void cpu_idle_wait(void);
-
-#define arch_align_stack(x) (x)
-
-void default_idle(void);
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_IA64_SYSTEM_H */
+/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
+#include <asm/barrier.h>
+#include <asm/exec.h>
+#include <asm/switch_to.h>
index 61b5bdf..8f6cbaa 100644 (file)
@@ -1,7 +1,6 @@
 #ifndef _ASM_IA64_UV_UV_H
 #define _ASM_IA64_UV_UV_H
 
-#include <asm/system.h>
 #include <asm/sn/simulator.h>
 
 static inline int is_uv_system(void)
index 5207035..93c6488 100644 (file)
@@ -50,7 +50,6 @@
 #include <asm/iosapic.h>
 #include <asm/machvec.h>
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm/numa.h>
 #include <asm/sal.h>
 #include <asm/cyclone.h>
index c38d22e..d37bbd4 100644 (file)
@@ -39,6 +39,7 @@
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/mca.h>
+#include <asm/setup.h>
 #include <asm/tlbflush.h>
 
 #define EFI_DEBUG      0
index 331d42b..f15d860 100644 (file)
@@ -21,7 +21,6 @@
 #include <asm/thread_info.h>
 #include <asm/sal.h>
 #include <asm/signal.h>
-#include <asm/system.h>
 #include <asm/unistd.h>
 
 #include "entry.h"
index 245d3e1..b5f8bdd 100644 (file)
@@ -11,8 +11,9 @@
 #include <asm/errno.h>
 #include <asm/asm-offsets.h>
 #include <asm/sigcontext.h>
-#include <asm/system.h>
 #include <asm/unistd.h>
+#include <asm/kregs.h>
+#include <asm/page.h>
 #include "paravirt_inst.h"
 
 /*
index d32b085..e518f79 100644 (file)
@@ -5,8 +5,7 @@
  * its layout.
  */
 
-
-#include <asm/system.h>
+#include <asm/page.h>
 #include "paravirt_patchlist.h"
 
 SECTIONS
index 17a9fba..629a250 100644 (file)
@@ -30,7 +30,6 @@
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 #include <asm/mca_asm.h>
 #include <linux/init.h>
 #include <linux/linkage.h>
index b0f9afe..ef4b5d8 100644 (file)
@@ -98,7 +98,6 @@
 #include <asm/machvec.h>
 #include <asm/processor.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 
 #undef DEBUG_INTERRUPT_ROUTING
 
index 782c3a3..08113b1 100644 (file)
@@ -39,7 +39,6 @@
 #include <asm/hw_irq.h>
 #include <asm/machvec.h>
 #include <asm/pgtable.h>
-#include <asm/system.h>
 #include <asm/tlbflush.h>
 
 #ifdef CONFIG_PERFMON
index d93e396..fa25689 100644 (file)
@@ -54,7 +54,6 @@
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 #include <asm/thread_info.h>
 #include <asm/unistd.h>
 #include <asm/errno.h>
index d41a40e..f5a1e52 100644 (file)
@@ -1,7 +1,6 @@
 #include <linux/module.h>
 #include <linux/dma-mapping.h>
 #include <asm/machvec.h>
-#include <asm/system.h>
 
 #ifdef CONFIG_IA64_GENERIC
 
index 84fb405..9198a79 100644 (file)
@@ -92,7 +92,6 @@
 #include <asm/meminit.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 #include <asm/sal.h>
 #include <asm/mca.h>
 #include <asm/kexec.h>
index 09b4d68..1c2e894 100644 (file)
@@ -28,7 +28,6 @@
 #include <asm/machvec.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 #include <asm/sal.h>
 #include <asm/mca.h>
 
index 68a1311..1cf0917 100644 (file)
@@ -11,7 +11,6 @@
 #include <asm/patch.h>
 #include <asm/processor.h>
 #include <asm/sections.h>
-#include <asm/system.h>
 #include <asm/unistd.h>
 
 /*
index eb11757..7cdc89b 100644 (file)
@@ -12,7 +12,6 @@
 #include <asm/machvec.h>
 #include <linux/dma-mapping.h>
 
-#include <asm/system.h>
 
 #ifdef CONFIG_INTEL_IOMMU
 
index b2c65e0..9d0fd7d 100644 (file)
@@ -49,7 +49,6 @@
 #include <asm/perfmon.h>
 #include <asm/processor.h>
 #include <asm/signal.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/delay.h>
 
index dad9166..4265ff6 100644 (file)
@@ -26,7 +26,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace_offsets.h>
 #include <asm/rse.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/unwind.h>
 #ifdef CONFIG_PERFMON
index cd57d73..c45e6dd 100644 (file)
@@ -59,7 +59,6 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/smp.h>
-#include <asm/system.h>
 #include <asm/tlbflush.h>
 #include <asm/unistd.h>
 #include <asm/hpsim.h>
index 0bd537b..e27f925 100644 (file)
@@ -44,7 +44,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/sal.h>
-#include <asm/system.h>
 #include <asm/tlbflush.h>
 #include <asm/unistd.h>
 #include <asm/mca.h>
index 5590979..fb7927b 100644 (file)
@@ -55,7 +55,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/sal.h>
-#include <asm/system.h>
 #include <asm/tlbflush.h>
 #include <asm/unistd.h>
 #include <asm/sn/arch.h>
index 43920de..aa94bdd 100644 (file)
@@ -29,7 +29,6 @@
 #include <asm/ptrace.h>
 #include <asm/sal.h>
 #include <asm/sections.h>
-#include <asm/system.h>
 
 #include "fsyscall_gtod_data.h"
 
index fd80e70..bd42b76 100644 (file)
@@ -22,6 +22,7 @@
 #include <asm/intrinsics.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
+#include <asm/setup.h>
 
 fpswa_interface_t *fpswa_interface;
 EXPORT_SYMBOL(fpswa_interface);
index 6a867dc..a96bcf8 100644 (file)
@@ -23,7 +23,6 @@
 #include <linux/gfp.h>
 #include <asm/page.h>
 #include <asm/pal.h>
-#include <asm/system.h>
 #include <asm/pgtable.h>
 #include <linux/atomic.h>
 #include <asm/tlbflush.h>
index fed6afa..8f66195 100644 (file)
@@ -41,7 +41,6 @@
 #include <asm/ptrace_offsets.h>
 #include <asm/rse.h>
 #include <asm/sections.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 
 #include "entry.h"
index 53c0ba0..0ccb28f 100644 (file)
@@ -1,7 +1,6 @@
 
 #include <asm/cache.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 #include <asm/pgtable.h>
 
 #include <asm-generic/vmlinux.lds.h>
index 20b3593..02d29c2 100644 (file)
@@ -14,7 +14,6 @@
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 
 extern int die(char *, struct pt_regs *, long);
index 13df239..0eab454 100644 (file)
@@ -30,7 +30,6 @@
 #include <asm/pgalloc.h>
 #include <asm/sal.h>
 #include <asm/sections.h>
-#include <asm/system.h>
 #include <asm/tlb.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
index f7b7989..6a219a9 100644 (file)
@@ -14,7 +14,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
 
 /*
  * For IA64 we need to perform a complex little dance to get both
index f82f5d4..9462792 100644 (file)
@@ -24,7 +24,6 @@
 
 #include <asm/machvec.h>
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm/io.h>
 #include <asm/sal.h>
 #include <asm/smp.h>
index 77db0b5..f82e7b4 100644 (file)
@@ -33,9 +33,9 @@
 #include <asm/io.h>
 #include <asm/sal.h>
 #include <asm/machvec.h>
-#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/vga.h>
+#include <asm/setup.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/addrs.h>
 #include <asm/sn/pda.h>
index e633288..20b88cb 100644 (file)
@@ -12,7 +12,6 @@
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/nodemask.h>
-#include <asm/system.h>
 #include <asm/io.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/sn_cpuid.h>
index e884ba4..68c8454 100644 (file)
@@ -26,7 +26,6 @@
 #include <asm/processor.h>
 #include <asm/irq.h>
 #include <asm/sal.h>
-#include <asm/system.h>
 #include <asm/delay.h>
 #include <asm/io.h>
 #include <asm/smp.h>
index 0f8844e..abab8f9 100644 (file)
@@ -14,7 +14,6 @@
 #include <linux/clocksource.h>
 
 #include <asm/hw_irq.h>
-#include <asm/system.h>
 #include <asm/timex.h>
 
 #include <asm/sn/leds.h>
index c1bd1cf..26aeccb 100644 (file)
@@ -14,7 +14,6 @@
 #include <linux/capability.h>
 #include <linux/device.h>
 #include <linux/delay.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/addrs.h>
index b820ed0..e29519e 100644 (file)
@@ -7,7 +7,6 @@
 #include <asm/processor.h>
 #include <asm/asmmacro.h>
 #include <asm/pgtable.h>
-#include <asm/system.h>
 #include <asm/paravirt.h>
 #include <asm/xen/privop.h>
 #include <linux/elfnote.h>
index 03c85d7..6a198e4 100644 (file)
@@ -23,6 +23,7 @@ int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
 
 void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
 
+struct vm_area_struct;
 int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
                               unsigned long addr,
                               unsigned long mfn, int nr,