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authorDavid Howells <dhowells@redhat.com>2012-03-28 19:30:02 +0200
committerDavid Howells <dhowells@redhat.com>2012-03-28 19:30:02 +0200
commitc140d87995b68b428f70635c2e4071e4e8b3256e (patch)
treeaf942a4b02ead409ffc308bc0ff7a1c17995ab6b /arch/ia64
parentDisintegrate asm/system.h for Hexagon (diff)
downloadlinux-c140d87995b68b428f70635c2e4071e4e8b3256e.tar.xz
linux-c140d87995b68b428f70635c2e4071e4e8b3256e.zip
Disintegrate asm/system.h for IA64
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
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/dig/setup.c2
-rw-r--r--arch/ia64/hp/common/sba_iommu.c1
-rw-r--r--arch/ia64/hp/sim/boot/bootloader.c1
-rw-r--r--arch/ia64/hp/sim/boot/fw-emu.c1
-rw-r--r--arch/ia64/hp/sim/simeth.c1
-rw-r--r--arch/ia64/include/asm/acpi.h1
-rw-r--r--arch/ia64/include/asm/atomic.h1
-rw-r--r--arch/ia64/include/asm/auxvec.h2
-rw-r--r--arch/ia64/include/asm/barrier.h68
-rw-r--r--arch/ia64/include/asm/exec.h14
-rw-r--r--arch/ia64/include/asm/futex.h1
-rw-r--r--arch/ia64/include/asm/io.h1
-rw-r--r--arch/ia64/include/asm/irqflags.h2
-rw-r--r--arch/ia64/include/asm/kexec.h1
-rw-r--r--arch/ia64/include/asm/mca_asm.h2
-rw-r--r--arch/ia64/include/asm/page.h10
-rw-r--r--arch/ia64/include/asm/pci.h8
-rw-r--r--arch/ia64/include/asm/pgtable.h1
-rw-r--r--arch/ia64/include/asm/processor.h8
-rw-r--r--arch/ia64/include/asm/sal.h1
-rw-r--r--arch/ia64/include/asm/setup.h18
-rw-r--r--arch/ia64/include/asm/sn/pda.h1
-rw-r--r--arch/ia64/include/asm/spinlock.h1
-rw-r--r--arch/ia64/include/asm/switch_to.h87
-rw-r--r--arch/ia64/include/asm/system.h207
-rw-r--r--arch/ia64/include/asm/uv/uv.h1
-rw-r--r--arch/ia64/kernel/acpi.c1
-rw-r--r--arch/ia64/kernel/efi.c1
-rw-r--r--arch/ia64/kernel/fsys.S1
-rw-r--r--arch/ia64/kernel/gate.S3
-rw-r--r--arch/ia64/kernel/gate.lds.S3
-rw-r--r--arch/ia64/kernel/head.S1
-rw-r--r--arch/ia64/kernel/iosapic.c1
-rw-r--r--arch/ia64/kernel/irq_ia64.c1
-rw-r--r--arch/ia64/kernel/ivt.S1
-rw-r--r--arch/ia64/kernel/machvec.c1
-rw-r--r--arch/ia64/kernel/mca.c1
-rw-r--r--arch/ia64/kernel/mca_drv.c1
-rw-r--r--arch/ia64/kernel/patch.c1
-rw-r--r--arch/ia64/kernel/pci-dma.c1
-rw-r--r--arch/ia64/kernel/perfmon.c1
-rw-r--r--arch/ia64/kernel/ptrace.c1
-rw-r--r--arch/ia64/kernel/setup.c1
-rw-r--r--arch/ia64/kernel/smp.c1
-rw-r--r--arch/ia64/kernel/smpboot.c1
-rw-r--r--arch/ia64/kernel/time.c1
-rw-r--r--arch/ia64/kernel/traps.c1
-rw-r--r--arch/ia64/kernel/uncached.c1
-rw-r--r--arch/ia64/kernel/unwind.c1
-rw-r--r--arch/ia64/kernel/vmlinux.lds.S1
-rw-r--r--arch/ia64/mm/fault.c1
-rw-r--r--arch/ia64/mm/init.c1
-rw-r--r--arch/ia64/oprofile/backtrace.c1
-rw-r--r--arch/ia64/pci/pci.c1
-rw-r--r--arch/ia64/sn/kernel/setup.c2
-rw-r--r--arch/ia64/sn/kernel/sn2/prominfo_proc.c1
-rw-r--r--arch/ia64/sn/kernel/sn2/sn2_smp.c1
-rw-r--r--arch/ia64/sn/kernel/sn2/timer.c1
-rw-r--r--arch/ia64/sn/kernel/tiocx.c1
-rw-r--r--arch/ia64/xen/xensetup.S1
60 files changed, 232 insertions, 249 deletions
diff --git a/arch/ia64/dig/setup.c b/arch/ia64/dig/setup.c
index 9196b330ff7f..98131e1db7a0 100644
--- a/arch/ia64/dig/setup.c
+++ b/arch/ia64/dig/setup.c
@@ -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)
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index f5f4ef149aac..f6ea3a3b4a84 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -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>
diff --git a/arch/ia64/hp/sim/boot/bootloader.c b/arch/ia64/hp/sim/boot/bootloader.c
index c5e9baafafe0..28f4b230b8cb 100644
--- a/arch/ia64/hp/sim/boot/bootloader.c
+++ b/arch/ia64/hp/sim/boot/bootloader.c
@@ -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"
diff --git a/arch/ia64/hp/sim/boot/fw-emu.c b/arch/ia64/hp/sim/boot/fw-emu.c
index 0216e28300fa..271f412bda1a 100644
--- a/arch/ia64/hp/sim/boot/fw-emu.c
+++ b/arch/ia64/hp/sim/boot/fw-emu.c
@@ -13,6 +13,7 @@
#include <asm/io.h>
#include <asm/pal.h>
#include <asm/sal.h>
+#include <asm/setup.h>
#include "ssc.h"
diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index a63218e1f6c9..c13064e422df 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -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>
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index a06dfb13d518..301609c3fcec 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -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
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 3fad89ee01cb..7d9116600a36 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -15,7 +15,6 @@
#include <linux/types.h>
#include <asm/intrinsics.h>
-#include <asm/system.h>
#define ATOMIC_INIT(i) ((atomic_t) { (i) })
diff --git a/arch/ia64/include/asm/auxvec.h b/arch/ia64/include/asm/auxvec.h
index 23cebe5685b9..58277fc650ef 100644
--- a/arch/ia64/include/asm/auxvec.h
+++ b/arch/ia64/include/asm/auxvec.h
@@ -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
index 000000000000..60576e06b6fb
--- /dev/null
+++ b/arch/ia64/include/asm/barrier.h
@@ -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
index 000000000000..b26242490e36
--- /dev/null
+++ b/arch/ia64/include/asm/exec.h
@@ -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 */
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 8428525ddb22..0ab82cc2dc8f 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -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 { \
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index e5a6c3530c6c..2c26321c28c3 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -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>
/*
diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h
index f82d6be2ecd2..2b68d856dc78 100644
--- a/arch/ia64/include/asm/irqflags.h
+++ b/arch/ia64/include/asm/irqflags.h
@@ -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)
diff --git a/arch/ia64/include/asm/kexec.h b/arch/ia64/include/asm/kexec.h
index e1d58f819d78..aea2b81b03a3 100644
--- a/arch/ia64/include/asm/kexec.h
+++ b/arch/ia64/include/asm/kexec.h
@@ -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)
diff --git a/arch/ia64/include/asm/mca_asm.h b/arch/ia64/include/asm/mca_asm.h
index dd2a5b134390..13c1d4994d49 100644
--- a/arch/ia64/include/asm/mca_asm.h
+++ b/arch/ia64/include/asm/mca_asm.h
@@ -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
diff --git a/arch/ia64/include/asm/page.h b/arch/ia64/include/asm/page.h
index 961a16f43e6b..f1e1b2e3cdb3 100644
--- a/arch/ia64/include/asm/page.h
+++ b/arch/ia64/include/asm/page.h
@@ -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 */
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 279b38ae74aa..c5e6da95522c 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -11,6 +11,14 @@
#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
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 1a97af31ef17..815810cbbedc 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -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) */
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 691be0b95c1e..483f6c6a4238 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -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 */
diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h
index d19ddba4e327..e504f382115e 100644
--- a/arch/ia64/include/asm/sal.h
+++ b/arch/ia64/include/asm/sal.h
@@ -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;
diff --git a/arch/ia64/include/asm/setup.h b/arch/ia64/include/asm/setup.h
index 4399a44355b3..8d56458310b3 100644
--- a/arch/ia64/include/asm/setup.h
+++ b/arch/ia64/include/asm/setup.h
@@ -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
diff --git a/arch/ia64/include/asm/sn/pda.h b/arch/ia64/include/asm/sn/pda.h
index 1c5108d44d8b..22ae358c8d16 100644
--- a/arch/ia64/include/asm/sn/pda.h
+++ b/arch/ia64/include/asm/sn/pda.h
@@ -10,7 +10,6 @@
#include <linux/cache.h>
#include <asm/percpu.h>
-#include <asm/system.h>
/*
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index b77768d35f93..54ff557d474e 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -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
index 000000000000..cb2412fcd17f
--- /dev/null
+++ b/arch/ia64/include/asm/switch_to.h
@@ -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 */
diff --git a/arch/ia64/include/asm/system.h b/arch/ia64/include/asm/system.h
index 6cca30705d50..5b190b48fcd0 100644
--- a/arch/ia64/include/asm/system.h
+++ b/arch/ia64/include/asm/system.h
@@ -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>
diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
index 61b5bdfd980e..8f6cbaa742e9 100644
--- a/arch/ia64/include/asm/uv/uv.h
+++ b/arch/ia64/include/asm/uv/uv.h
@@ -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)
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 5207035dc061..93c648887f88 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -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>
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index c38d22e5e902..d37bbd48637f 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -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
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 331d42bda77a..f15d8601827f 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -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"
diff --git a/arch/ia64/kernel/gate.S b/arch/ia64/kernel/gate.S
index 245d3e1ec7e1..b5f8bdd8618e 100644
--- a/arch/ia64/kernel/gate.S
+++ b/arch/ia64/kernel/gate.S
@@ -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"
/*
diff --git a/arch/ia64/kernel/gate.lds.S b/arch/ia64/kernel/gate.lds.S
index d32b0855110a..e518f7902af6 100644
--- a/arch/ia64/kernel/gate.lds.S
+++ b/arch/ia64/kernel/gate.lds.S
@@ -5,8 +5,7 @@
* its layout.
*/
-
-#include <asm/system.h>
+#include <asm/page.h>
#include "paravirt_patchlist.h"
SECTIONS
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 17a9fba38930..629a250f7c19 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -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>
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index b0f9afebb146..ef4b5d877cf2 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -98,7 +98,6 @@
#include <asm/machvec.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
-#include <asm/system.h>
#undef DEBUG_INTERRUPT_ROUTING
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 782c3a357f24..08113b1d30f7 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -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
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index d93e396bf599..fa25689fc453 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -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>
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
index d41a40ef80c0..f5a1e5246b3e 100644
--- a/arch/ia64/kernel/machvec.c
+++ b/arch/ia64/kernel/machvec.c
@@ -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
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 84fb405eee87..9198a7991404 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -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>
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index 09b4d6828c45..1c2e89406721 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -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>
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c
index 68a1311db806..1cf091793714 100644
--- a/arch/ia64/kernel/patch.c
+++ b/arch/ia64/kernel/patch.c
@@ -11,7 +11,6 @@
#include <asm/patch.h>
#include <asm/processor.h>
#include <asm/sections.h>
-#include <asm/system.h>
#include <asm/unistd.h>
/*
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index eb1175720050..7cdc89b2483c 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -12,7 +12,6 @@
#include <asm/machvec.h>
#include <linux/dma-mapping.h>
-#include <asm/system.h>
#ifdef CONFIG_INTEL_IOMMU
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index b2c65e034f5d..9d0fd7d5bb82 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -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>
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index dad91661ddf9..4265ff64219b 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -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
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index cd57d7312de0..c45e6ddb4ddb 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -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>
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 0bd537b4ea6b..e27f925032ae 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -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>
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 559097986672..fb7927be75c4 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -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>
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 43920de425f1..aa94bdda9de8 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -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"
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index fd80e70018a9..bd42b76000d1 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -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);
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index 6a867dc45c05..a96bcf83a735 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -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>
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index fed6afa2e8a9..8f66195999e7 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -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"
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 53c0ba004e9e..0ccb28fab27e 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -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>
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 20b359376128..02d29c2a132a 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -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);
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 13df239dbed1..0eab454867a2 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -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>
diff --git a/arch/ia64/oprofile/backtrace.c b/arch/ia64/oprofile/backtrace.c
index f7b798993cea..6a219a946050 100644
--- a/arch/ia64/oprofile/backtrace.c
+++ b/arch/ia64/oprofile/backtrace.c
@@ -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
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index f82f5d4b65fd..946279265521 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -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>
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 77db0b514fa4..f82e7b462b7b 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -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>
diff --git a/arch/ia64/sn/kernel/sn2/prominfo_proc.c b/arch/ia64/sn/kernel/sn2/prominfo_proc.c
index e63328818643..20b88cb1881a 100644
--- a/arch/ia64/sn/kernel/sn2/prominfo_proc.c
+++ b/arch/ia64/sn/kernel/sn2/prominfo_proc.c
@@ -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>
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index e884ba4e031d..68c845411624 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -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>
diff --git a/arch/ia64/sn/kernel/sn2/timer.c b/arch/ia64/sn/kernel/sn2/timer.c
index 0f8844e49363..abab8f99e913 100644
--- a/arch/ia64/sn/kernel/sn2/timer.c
+++ b/arch/ia64/sn/kernel/sn2/timer.c
@@ -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>
diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index c1bd1cfda327..26aeccb04f85 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -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>
diff --git a/arch/ia64/xen/xensetup.S b/arch/ia64/xen/xensetup.S
index b820ed02ab9f..e29519ebe2d2 100644
--- a/arch/ia64/xen/xensetup.S
+++ b/arch/ia64/xen/xensetup.S
@@ -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>