Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

126 files changed, 3347 insertions, 0 deletions

diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h
new file mode 100644
index 000000000000..7c26265e1d7a
--- /dev/null
+++ b/include/asm-um/a.out.h
@@ -0,0 +1,20 @@
+#ifndef __UM_A_OUT_H
+#define __UM_A_OUT_H
+
+#include "linux/config.h"
+#include "asm/arch/a.out.h"
+#include "choose-mode.h"
+
+#undef STACK_TOP
+
+extern unsigned long stacksizelim;
+
+extern unsigned long host_task_size;
+
+#define STACK_ROOM (stacksizelim)
+
+extern int honeypot;
+#define STACK_TOP \
+        CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size)
+
+#endif
diff --git a/include/asm-um/apic.h b/include/asm-um/apic.h
new file mode 100644
index 000000000000..876dee84ab11
--- /dev/null
+++ b/include/asm-um/apic.h
@@ -0,0 +1,4 @@
+#ifndef __UM_APIC_H
+#define __UM_APIC_H
+
+#endif
diff --git a/include/asm-um/arch-signal-i386.h b/include/asm-um/arch-signal-i386.h
new file mode 100644
index 000000000000..99a9de4728da
--- /dev/null
+++ b/include/asm-um/arch-signal-i386.h
@@ -0,0 +1,24 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_ARCH_SIGNAL_I386_H
+#define __UM_ARCH_SIGNAL_I386_H
+
+struct arch_signal_context {
+        unsigned long extrasigs[_NSIG_WORDS];
+};
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/archparam-i386.h b/include/asm-um/archparam-i386.h
new file mode 100644
index 000000000000..6f78de5b621b
--- /dev/null
+++ b/include/asm-um/archparam-i386.h
@@ -0,0 +1,163 @@
+/* 
+ * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_ARCHPARAM_I386_H
+#define __UM_ARCHPARAM_I386_H
+
+/********* Bits for asm-um/elf.h ************/
+
+#include <asm/user.h>
+
+extern char * elf_aux_platform;
+#define ELF_PLATFORM (elf_aux_platform)
+
+#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
+
+typedef struct user_i387_struct elf_fpregset_t;
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_386
+
+#define ELF_PLAT_INIT(regs, load_addr) do { \
+        PT_REGS_EBX(regs) = 0; \
+        PT_REGS_ECX(regs) = 0; \
+        PT_REGS_EDX(regs) = 0; \
+        PT_REGS_ESI(regs) = 0; \
+        PT_REGS_EDI(regs) = 0; \
+        PT_REGS_EBP(regs) = 0; \
+        PT_REGS_EAX(regs) = 0; \
+} while(0)
+
+/* Shamelessly stolen from include/asm-i386/elf.h */
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs) do {   \
+        pr_reg[0] = PT_REGS_EBX(regs);          \
+        pr_reg[1] = PT_REGS_ECX(regs);          \
+        pr_reg[2] = PT_REGS_EDX(regs);          \
+        pr_reg[3] = PT_REGS_ESI(regs);          \
+        pr_reg[4] = PT_REGS_EDI(regs);          \
+        pr_reg[5] = PT_REGS_EBP(regs);          \
+        pr_reg[6] = PT_REGS_EAX(regs);          \
+        pr_reg[7] = PT_REGS_DS(regs);           \
+        pr_reg[8] = PT_REGS_ES(regs);           \
+        /* fake once used fs and gs selectors? */       \
+        pr_reg[9] = PT_REGS_DS(regs);           \
+        pr_reg[10] = PT_REGS_DS(regs);          \
+        pr_reg[11] = PT_REGS_SYSCALL_NR(regs);  \
+        pr_reg[12] = PT_REGS_IP(regs);          \
+        pr_reg[13] = PT_REGS_CS(regs);          \
+        pr_reg[14] = PT_REGS_EFLAGS(regs);      \
+        pr_reg[15] = PT_REGS_SP(regs);          \
+        pr_reg[16] = PT_REGS_SS(regs);          \
+} while(0);
+
+
+extern unsigned long vsyscall_ehdr;
+extern unsigned long vsyscall_end;
+extern unsigned long __kernel_vsyscall;
+
+#define VSYSCALL_BASE vsyscall_ehdr
+#define VSYSCALL_END vsyscall_end
+
+/*
+ * This is the range that is readable by user mode, and things
+ * acting like user mode such as get_user_pages.
+ */
+#define FIXADDR_USER_START      VSYSCALL_BASE
+#define FIXADDR_USER_END        VSYSCALL_END
+
+/*
+ * Architecture-neutral AT_ values in 0-17, leave some room
+ * for more of them, start the x86-specific ones at 32.
+ */
+#define AT_SYSINFO              32
+#define AT_SYSINFO_EHDR         33
+
+#define ARCH_DLINFO                                             \
+do {                                                            \
+        if ( vsyscall_ehdr ) {                                  \
+                NEW_AUX_ENT(AT_SYSINFO, __kernel_vsyscall);     \
+                NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr);    \
+        }                                                       \
+} while (0)
+
+/*
+ * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
+ * extra segments containing the vsyscall DSO contents.  Dumping its
+ * contents makes post-mortem fully interpretable later without matching up
+ * the same kernel and hardware config to see what PC values meant.
+ * Dumping its extra ELF program headers includes all the other information
+ * a debugger needs to easily find how the vsyscall DSO was being used.
+ */
+#define ELF_CORE_EXTRA_PHDRS                                                  \
+        (vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0 )
+
+#define ELF_CORE_WRITE_EXTRA_PHDRS                                            \
+if ( vsyscall_ehdr ) {                                                        \
+        const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr;    \
+        const struct elf_phdr *const phdrp =                                  \
+                (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);   \
+        int i;                                                                \
+        Elf32_Off ofs = 0;                                                    \
+        for (i = 0; i < ehdrp->e_phnum; ++i) {                                \
+                struct elf_phdr phdr = phdrp[i];                              \
+                if (phdr.p_type == PT_LOAD) {                                 \
+                        ofs = phdr.p_offset = offset;                         \
+                        offset += phdr.p_filesz;                              \
+                }                                                             \
+                else                                                          \
+                        phdr.p_offset += ofs;                                 \
+                phdr.p_paddr = 0; /* match other core phdrs */                \
+                DUMP_WRITE(&phdr, sizeof(phdr));                              \
+        }                                                                     \
+}
+#define ELF_CORE_WRITE_EXTRA_DATA                                             \
+if ( vsyscall_ehdr ) {                                                        \
+        const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr;    \
+        const struct elf_phdr *const phdrp =                                  \
+                (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);   \
+        int i;                                                                \
+        for (i = 0; i < ehdrp->e_phnum; ++i) {                                \
+                if (phdrp[i].p_type == PT_LOAD)                               \
+                        DUMP_WRITE((void *) phdrp[i].p_vaddr,                 \
+                                   phdrp[i].p_filesz);                        \
+        }                                                                     \
+}
+
+#define R_386_NONE      0
+#define R_386_32        1
+#define R_386_PC32      2
+#define R_386_GOT32     3
+#define R_386_PLT32     4
+#define R_386_COPY      5
+#define R_386_GLOB_DAT  6
+#define R_386_JMP_SLOT  7
+#define R_386_RELATIVE  8
+#define R_386_GOTOFF    9
+#define R_386_GOTPC     10
+#define R_386_NUM       11
+
+/********* Nothing for asm-um/hardirq.h **********/
+
+/********* Nothing for asm-um/hw_irq.h **********/
+
+/********* Nothing for asm-um/string.h **********/
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/archparam-ppc.h b/include/asm-um/archparam-ppc.h
new file mode 100644
index 000000000000..0ebced92a762
--- /dev/null
+++ b/include/asm-um/archparam-ppc.h
@@ -0,0 +1,37 @@
+#ifndef __UM_ARCHPARAM_PPC_H
+#define __UM_ARCHPARAM_PPC_H
+
+/********* Bits for asm-um/elf.h ************/
+
+#define ELF_PLATFORM (0)
+
+#define ELF_ET_DYN_BASE (0x08000000)
+
+/* the following stolen from asm-ppc/elf.h */
+#define ELF_NGREG       48      /* includes nip, msr, lr, etc. */
+#define ELF_NFPREG      33      /* includes fpscr */
+/* General registers */
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Floating point registers */
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+#define ELF_DATA        ELFDATA2MSB
+#define ELF_ARCH        EM_PPC
+
+/********* Bits for asm-um/hw_irq.h **********/
+
+struct hw_interrupt_type;
+
+/********* Bits for asm-um/hardirq.h **********/
+
+#define irq_enter(cpu, irq) hardirq_enter(cpu)
+#define irq_exit(cpu, irq) hardirq_exit(cpu)
+
+/********* Bits for asm-um/string.h **********/
+
+#define __HAVE_ARCH_STRRCHR
+
+#endif
diff --git a/include/asm-um/archparam-x86_64.h b/include/asm-um/archparam-x86_64.h
new file mode 100644
index 000000000000..96321c4892f1
--- /dev/null
+++ b/include/asm-um/archparam-x86_64.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_ARCHPARAM_X86_64_H
+#define __UM_ARCHPARAM_X86_64_H
+
+#include <asm/user.h>
+
+#define ELF_PLATFORM "x86_64"
+
+#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
+
+typedef unsigned long elf_greg_t;
+typedef struct { } elf_fpregset_t;
+
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_X86_64
+
+#define ELF_PLAT_INIT(regs, load_addr)    do { \
+        PT_REGS_RBX(regs) = 0; \
+        PT_REGS_RCX(regs) = 0; \
+        PT_REGS_RDX(regs) = 0; \
+        PT_REGS_RSI(regs) = 0; \
+        PT_REGS_RDI(regs) = 0; \
+        PT_REGS_RBP(regs) = 0; \
+        PT_REGS_RAX(regs) = 0; \
+        PT_REGS_R8(regs) = 0; \
+        PT_REGS_R9(regs) = 0; \
+        PT_REGS_R10(regs) = 0; \
+        PT_REGS_R11(regs) = 0; \
+        PT_REGS_R12(regs) = 0; \
+        PT_REGS_R13(regs) = 0; \
+        PT_REGS_R14(regs) = 0; \
+        PT_REGS_R15(regs) = 0; \
+} while (0)
+
+#ifdef TIF_IA32 /* XXX */
+        clear_thread_flag(TIF_IA32);
+#endif
+
+/* No user-accessible fixmap addresses, i.e. vsyscall */
+#define FIXADDR_USER_START      0
+#define FIXADDR_USER_END        0
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/atomic.h b/include/asm-um/atomic.h
new file mode 100644
index 000000000000..b683f1034d1e
--- /dev/null
+++ b/include/asm-um/atomic.h
@@ -0,0 +1,11 @@
+#ifndef __UM_ATOMIC_H
+#define __UM_ATOMIC_H
+
+/* The i386 atomic.h calls printk, but doesn't include kernel.h, so we
+ * include it here.
+ */
+#include "linux/kernel.h"
+
+#include "asm/arch/atomic.h"
+
+#endif
diff --git a/include/asm-um/bitops.h b/include/asm-um/bitops.h
new file mode 100644
index 000000000000..46d781953d3a
--- /dev/null
+++ b/include/asm-um/bitops.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BITOPS_H
+#define __UM_BITOPS_H
+
+#include "asm/arch/bitops.h"
+
+#endif
diff --git a/include/asm-um/boot.h b/include/asm-um/boot.h
new file mode 100644
index 000000000000..09548c3e784e
--- /dev/null
+++ b/include/asm-um/boot.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BOOT_H
+#define __UM_BOOT_H
+
+#include "asm/arch/boot.h"
+
+#endif
diff --git a/include/asm-um/bug.h b/include/asm-um/bug.h
new file mode 100644
index 000000000000..1e22fa26ff06
--- /dev/null
+++ b/include/asm-um/bug.h
@@ -0,0 +1,4 @@
+#ifndef __UM_BUG_H
+#define __UM_BUG_H
+#include <asm-generic/bug.h>
+#endif
diff --git a/include/asm-um/bugs.h b/include/asm-um/bugs.h
new file mode 100644
index 000000000000..6a72e240d5fc
--- /dev/null
+++ b/include/asm-um/bugs.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BUGS_H
+#define __UM_BUGS_H
+
+void check_bugs(void);
+
+#endif
diff --git a/include/asm-um/byteorder.h b/include/asm-um/byteorder.h
new file mode 100644
index 000000000000..eee0a834f447
--- /dev/null
+++ b/include/asm-um/byteorder.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BYTEORDER_H
+#define __UM_BYTEORDER_H
+
+#include "asm/arch/byteorder.h"
+
+#endif
diff --git a/include/asm-um/cache.h b/include/asm-um/cache.h
new file mode 100644
index 000000000000..4b134fe8504e
--- /dev/null
+++ b/include/asm-um/cache.h
@@ -0,0 +1,10 @@
+#ifndef __UM_CACHE_H
+#define __UM_CACHE_H
+
+/* These are x86 numbers */
+#define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define L1_CACHE_SHIFT_MAX 7    /* largest L1 which this arch supports */
+
+#endif
diff --git a/include/asm-um/cacheflush.h b/include/asm-um/cacheflush.h
new file mode 100644
index 000000000000..12e9d4b74c8f
--- /dev/null
+++ b/include/asm-um/cacheflush.h
@@ -0,0 +1,6 @@
+#ifndef __UM_CACHEFLUSH_H
+#define __UM_CACHEFLUSH_H
+
+#include "asm/arch/cacheflush.h"
+
+#endif
diff --git a/include/asm-um/calling.h b/include/asm-um/calling.h
new file mode 100644
index 000000000000..0b2384cc99fd
--- /dev/null
+++ b/include/asm-um/calling.h
@@ -0,0 +1,9 @@
+# Copyright 2003 - 2004 Pathscale, Inc
+# Released under the GPL
+
+#ifndef __UM_CALLING_H /* XXX x86_64 */
+#define __UM_CALLING_H
+
+#include "asm/arch/calling.h"
+
+#endif
diff --git a/include/asm-um/checksum.h b/include/asm-um/checksum.h
new file mode 100644
index 000000000000..5b501361e361
--- /dev/null
+++ b/include/asm-um/checksum.h
@@ -0,0 +1,6 @@
+#ifndef __UM_CHECKSUM_H
+#define __UM_CHECKSUM_H
+
+#include "sysdep/checksum.h"
+
+#endif
diff --git a/include/asm-um/cobalt.h b/include/asm-um/cobalt.h
new file mode 100644
index 000000000000..f813a684be98
--- /dev/null
+++ b/include/asm-um/cobalt.h
@@ -0,0 +1,6 @@
+#ifndef __UM_COBALT_H
+#define __UM_COBALT_H
+
+#include "asm/arch/cobalt.h"
+
+#endif
diff --git a/include/asm-um/common.lds.S b/include/asm-um/common.lds.S
new file mode 100644
index 000000000000..a3d6aab0e74d
--- /dev/null
+++ b/include/asm-um/common.lds.S
@@ -0,0 +1,104 @@
+#include <asm-generic/vmlinux.lds.h>
+
+  .fini      : { *(.fini)    } =0x9090
+  _etext = .;
+  PROVIDE (etext = .);
+
+  . = ALIGN(4096);
+  _sdata = .;
+  PROVIDE (sdata = .);
+
+  . = ALIGN(16);                /* Exception table */
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  RODATA
+
+  .unprotected : { *(.unprotected) }
+  . = ALIGN(4096);
+  PROVIDE (_unprotected_end = .);
+
+  . = ALIGN(4096);
+  __uml_setup_start = .;
+  .uml.setup.init : { *(.uml.setup.init) }
+  __uml_setup_end = .;
+        
+  __uml_help_start = .;
+  .uml.help.init : { *(.uml.help.init) }
+  __uml_help_end = .;
+        
+  __uml_postsetup_start = .;
+  .uml.postsetup.init : { *(.uml.postsetup.init) }
+  __uml_postsetup_end = .;
+        
+  __setup_start = .;
+  .init.setup : { *(.init.setup) }
+  __setup_end = .;
+
+  . = ALIGN(32);
+  __per_cpu_start = . ; 
+  .data.percpu : { *(.data.percpu) }
+  __per_cpu_end = . ;
+        
+  __initcall_start = .;
+  .initcall.init : {
+        *(.initcall1.init) 
+        *(.initcall2.init) 
+        *(.initcall3.init) 
+        *(.initcall4.init) 
+        *(.initcall5.init) 
+        *(.initcall6.init) 
+        *(.initcall7.init)
+  }
+  __initcall_end = .;
+
+  __con_initcall_start = .;
+  .con_initcall.init : { *(.con_initcall.init) }
+  __con_initcall_end = .;
+
+  __uml_initcall_start = .;
+  .uml.initcall.init : { *(.uml.initcall.init) }
+  __uml_initcall_end = .;
+  __init_end = .;
+
+  SECURITY_INIT
+
+  __exitcall_begin = .;
+  .exitcall : { *(.exitcall.exit) }
+  __exitcall_end = .;
+
+  __uml_exitcall_begin = .;
+  .uml.exitcall : { *(.uml.exitcall.exit) }
+  __uml_exitcall_end = .;
+
+  . = ALIGN(4);
+  __alt_instructions = .;
+  .altinstructions : { *(.altinstructions) }
+  __alt_instructions_end = .;
+  .altinstr_replacement : { *(.altinstr_replacement) }
+  /* .exit.text is discard at runtime, not link time, to deal with references
+     from .altinstructions and .eh_frame */
+  .exit.text : { *(.exit.text) }
+  .exit.data : { *(.exit.data) }
+
+  __preinit_array_start = .;
+  .preinit_array : { *(.preinit_array) }
+  __preinit_array_end = .;
+  __init_array_start = .;
+  .init_array : { *(.init_array) }
+  __init_array_end = .;
+  __fini_array_start = .;
+  .fini_array : { *(.fini_array) }
+  __fini_array_end = .;
+
+   . = ALIGN(4096);
+  __initramfs_start = .;
+  .init.ramfs : { *(.init.ramfs) }
+  __initramfs_end = .;
+
+  /* Sections to be discarded */
+  /DISCARD/ : {
+        *(.exitcall.exit)
+  }
+
diff --git a/include/asm-um/cpufeature.h b/include/asm-um/cpufeature.h
new file mode 100644
index 000000000000..fb7bd42a4d96
--- /dev/null
+++ b/include/asm-um/cpufeature.h
@@ -0,0 +1,6 @@
+#ifndef __UM_CPUFEATURE_H
+#define __UM_CPUFEATURE_H
+
+#include "asm/arch/cpufeature.h"
+
+#endif
diff --git a/include/asm-um/cputime.h b/include/asm-um/cputime.h
new file mode 100644
index 000000000000..c84acbadfa2f
--- /dev/null
+++ b/include/asm-um/cputime.h
@@ -0,0 +1,6 @@
+#ifndef __UM_CPUTIME_H
+#define __UM_CPUTIME_H
+
+#include <asm-generic/cputime.h>
+
+#endif /* __UM_CPUTIME_H */
diff --git a/include/asm-um/current.h b/include/asm-um/current.h
new file mode 100644
index 000000000000..8fd72f69ce65
--- /dev/null
+++ b/include/asm-um/current.h
@@ -0,0 +1,32 @@
+/* 
+ * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_CURRENT_H
+#define __UM_CURRENT_H
+
+#ifndef __ASSEMBLY__
+
+#include "asm/page.h"
+#include "linux/thread_info.h"
+
+#define current (current_thread_info()->task)
+
+/*Backward compatibility - it's used inside arch/um.*/
+#define current_thread current_thread_info()
+
+#endif /* __ASSEMBLY__ */
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/delay.h b/include/asm-um/delay.h
new file mode 100644
index 000000000000..40695576ca60
--- /dev/null
+++ b/include/asm-um/delay.h
@@ -0,0 +1,7 @@
+#ifndef __UM_DELAY_H
+#define __UM_DELAY_H
+
+#include "asm/arch/delay.h"
+#include "asm/archparam.h"
+
+#endif
diff --git a/include/asm-um/desc.h b/include/asm-um/desc.h
new file mode 100644
index 000000000000..ac1d2a20d178
--- /dev/null
+++ b/include/asm-um/desc.h
@@ -0,0 +1,6 @@
+#ifndef __UM_DESC_H
+#define __UM_DESC_H
+
+#include "asm/arch/desc.h"
+
+#endif
diff --git a/include/asm-um/div64.h b/include/asm-um/div64.h
new file mode 100644
index 000000000000..1e17f7409cab
--- /dev/null
+++ b/include/asm-um/div64.h
@@ -0,0 +1,6 @@
+#ifndef _UM_DIV64_H
+#define _UM_DIV64_H
+
+#include "asm/arch/div64.h"
+
+#endif
diff --git a/include/asm-um/dma-mapping.h b/include/asm-um/dma-mapping.h
new file mode 100644
index 000000000000..13e6291f7151
--- /dev/null
+++ b/include/asm-um/dma-mapping.h
@@ -0,0 +1,121 @@
+#ifndef _ASM_DMA_MAPPING_H
+#define _ASM_DMA_MAPPING_H
+
+#include <asm/scatterlist.h>
+
+static inline int
+dma_supported(struct device *dev, u64 mask)
+{
+        BUG();
+        return(0);
+}
+
+static inline int
+dma_set_mask(struct device *dev, u64 dma_mask)
+{
+        BUG();
+        return(0);
+}
+
+static inline void *
+dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
+                   int flag)
+{
+        BUG();
+        return((void *) 0);
+}
+
+static inline void
+dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+                  dma_addr_t dma_handle)
+{
+        BUG();
+}
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *cpu_addr, size_t size,
+               enum dma_data_direction direction)
+{
+        BUG();
+        return(0);
+}
+
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+                 enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+             unsigned long offset, size_t size,
+             enum dma_data_direction direction)
+{
+        BUG();
+        return(0);
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+               enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+           enum dma_data_direction direction)
+{
+        BUG();
+        return(0);
+}
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+             enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,
+                enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems,
+            enum dma_data_direction direction)
+{
+        BUG();
+}
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+#define dma_is_consistent(d) (1)
+
+static inline int
+dma_get_cache_alignment(void)
+{
+        BUG();
+        return(0);
+}
+
+static inline void
+dma_sync_single_range(struct device *dev, dma_addr_t dma_handle,
+                      unsigned long offset, size_t size,
+                      enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_cache_sync(void *vaddr, size_t size,
+               enum dma_data_direction direction)
+{
+        BUG();
+}
+
+#endif
diff --git a/include/asm-um/dma.h b/include/asm-um/dma.h
new file mode 100644
index 000000000000..9f6139a8a525
--- /dev/null
+++ b/include/asm-um/dma.h
@@ -0,0 +1,10 @@
+#ifndef __UM_DMA_H
+#define __UM_DMA_H
+
+#include "asm/io.h"
+
+extern unsigned long uml_physmem;
+
+#define MAX_DMA_ADDRESS (uml_physmem)
+
+#endif
diff --git a/include/asm-um/dwarf2.h b/include/asm-um/dwarf2.h
new file mode 100644
index 000000000000..d1a02e762931
--- /dev/null
+++ b/include/asm-um/dwarf2.h
@@ -0,0 +1,11 @@
+/* Copyright 2003 - 2004 Pathscale, Inc
+ * Released under the GPL
+ */
+
+/* Needed on x86_64 by thunk.S */
+#ifndef __UM_DWARF2_H
+#define __UM_DWARF2_H
+
+#include "asm/arch/dwarf2.h"
+
+#endif
diff --git a/include/asm-um/elf.h b/include/asm-um/elf.h
new file mode 100644
index 000000000000..b3a7258f9971
--- /dev/null
+++ b/include/asm-um/elf.h
@@ -0,0 +1,37 @@
+#ifndef __UM_ELF_H
+#define __UM_ELF_H
+
+#include "linux/config.h"
+#include "asm/archparam.h"
+
+extern long elf_aux_hwcap;
+#define ELF_HWCAP (elf_aux_hwcap)
+
+#define SET_PERSONALITY(ex, ibcs2) do ; while(0)
+
+#define ELF_EXEC_PAGESIZE 4096
+
+#define elf_check_arch(x) (1)
+
+#ifdef CONFIG_64_BIT
+#define ELF_CLASS ELFCLASS64
+#else
+#define ELF_CLASS ELFCLASS32
+#endif
+
+#define USE_ELF_CORE_DUMP
+
+#define R_386_NONE      0
+#define R_386_32        1
+#define R_386_PC32      2
+#define R_386_GOT32     3
+#define R_386_PLT32     4
+#define R_386_COPY      5
+#define R_386_GLOB_DAT  6
+#define R_386_JMP_SLOT  7
+#define R_386_RELATIVE  8
+#define R_386_GOTOFF    9
+#define R_386_GOTPC     10
+#define R_386_NUM       11
+
+#endif
diff --git a/include/asm-um/errno.h b/include/asm-um/errno.h
new file mode 100644
index 000000000000..b7a9e37fd8d8
--- /dev/null
+++ b/include/asm-um/errno.h
@@ -0,0 +1,6 @@
+#ifndef __UM_ERRNO_H
+#define __UM_ERRNO_H
+
+#include "asm/arch/errno.h"
+
+#endif
diff --git a/include/asm-um/fcntl.h b/include/asm-um/fcntl.h
new file mode 100644
index 000000000000..812a65446d92
--- /dev/null
+++ b/include/asm-um/fcntl.h
@@ -0,0 +1,6 @@
+#ifndef __UM_FCNTL_H
+#define __UM_FCNTL_H
+
+#include "asm/arch/fcntl.h"
+
+#endif
diff --git a/include/asm-um/fixmap.h b/include/asm-um/fixmap.h
new file mode 100644
index 000000000000..900f3fbb9fab
--- /dev/null
+++ b/include/asm-um/fixmap.h
@@ -0,0 +1,97 @@
+#ifndef __UM_FIXMAP_H
+#define __UM_FIXMAP_H
+
+#include <linux/config.h>
+#include <asm/kmap_types.h>
+#include <asm/archparam.h>
+
+/*
+ * Here we define all the compile-time 'special' virtual
+ * addresses. The point is to have a constant address at
+ * compile time, but to set the physical address only
+ * in the boot process. We allocate these special  addresses
+ * from the end of virtual memory (0xfffff000) backwards.
+ * Also this lets us do fail-safe vmalloc(), we
+ * can guarantee that these special addresses and
+ * vmalloc()-ed addresses never overlap.
+ *
+ * these 'compile-time allocated' memory buffers are
+ * fixed-size 4k pages. (or larger if used with an increment
+ * highger than 1) use fixmap_set(idx,phys) to associate
+ * physical memory with fixmap indices.
+ *
+ * TLB entries of such buffers will not be flushed across
+ * task switches.
+ */
+
+/*
+ * on UP currently we will have no trace of the fixmap mechanizm,
+ * no page table allocations, etc. This might change in the
+ * future, say framebuffers for the console driver(s) could be
+ * fix-mapped?
+ */
+enum fixed_addresses {
+#ifdef CONFIG_HIGHMEM
+        FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
+        FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
+#endif
+        __end_of_fixed_addresses
+};
+
+extern void __set_fixmap (enum fixed_addresses idx,
+                          unsigned long phys, pgprot_t flags);
+
+#define set_fixmap(idx, phys) \
+                __set_fixmap(idx, phys, PAGE_KERNEL)
+/*
+ * Some hardware wants to get fixmapped without caching.
+ */
+#define set_fixmap_nocache(idx, phys) \
+                __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
+/*
+ * used by vmalloc.c.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap, and leave one page empty
+ * at the top of mem..
+ */
+extern unsigned long get_kmem_end(void);
+
+#define FIXADDR_TOP     (get_kmem_end() - 0x2000)
+#define FIXADDR_SIZE    (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define __fix_to_virt(x)        (FIXADDR_TOP - ((x) << PAGE_SHIFT))
+#define __virt_to_fix(x)      ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
+
+extern void __this_fixmap_does_not_exist(void);
+
+/*
+ * 'index to address' translation. If anyone tries to use the idx
+ * directly without tranlation, we catch the bug with a NULL-deference
+ * kernel oops. Illegal ranges of incoming indices are caught too.
+ */
+static inline unsigned long fix_to_virt(const unsigned int idx)
+{
+        /*
+         * this branch gets completely eliminated after inlining,
+         * except when someone tries to use fixaddr indices in an
+         * illegal way. (such as mixing up address types or using
+         * out-of-range indices).
+         *
+         * If it doesn't get removed, the linker will complain
+         * loudly with a reasonably clear error message..
+         */
+        if (idx >= __end_of_fixed_addresses)
+                __this_fixmap_does_not_exist();
+
+        return __fix_to_virt(idx);
+}
+
+static inline unsigned long virt_to_fix(const unsigned long vaddr)
+{
+      BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
+      return __virt_to_fix(vaddr);
+}
+
+#endif
diff --git a/include/asm-um/floppy.h b/include/asm-um/floppy.h
new file mode 100644
index 000000000000..453e7415fb6f
--- /dev/null
+++ b/include/asm-um/floppy.h
@@ -0,0 +1,6 @@
+#ifndef __UM_FLOPPY_H
+#define __UM_FLOPPY_H
+
+#include "asm/arch/floppy.h"
+
+#endif
diff --git a/include/asm-um/hardirq.h b/include/asm-um/hardirq.h
new file mode 100644
index 000000000000..1224b2690a23
--- /dev/null
+++ b/include/asm-um/hardirq.h
@@ -0,0 +1,26 @@
+/* (c) 2004 cw@f00f.org, GPLv2 blah blah */
+
+#ifndef __ASM_UM_HARDIRQ_H
+#define __ASM_UM_HARDIRQ_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+/* NOTE: When SMP works again we might want to make this
+ * ____cacheline_aligned or maybe use per_cpu state? --cw */
+typedef struct {
+        unsigned int __softirq_pending;
+} irq_cpustat_t;
+
+#include <linux/irq_cpustat.h>
+
+/* As this would be very strange for UML to get we BUG() after the
+ * printk. */
+static inline void ack_bad_irq(unsigned int irq)
+{
+        printk(KERN_ERR "unexpected IRQ %02x\n", irq);
+        BUG();
+}
+
+#endif /* __ASM_UM_HARDIRQ_H */
diff --git a/include/asm-um/hdreg.h b/include/asm-um/hdreg.h
new file mode 100644
index 000000000000..cf6363abcab9
--- /dev/null
+++ b/include/asm-um/hdreg.h
@@ -0,0 +1,6 @@
+#ifndef __UM_HDREG_H
+#define __UM_HDREG_H
+
+#include "asm/arch/hdreg.h"
+
+#endif
diff --git a/include/asm-um/highmem.h b/include/asm-um/highmem.h
new file mode 100644
index 000000000000..36974cb8abc7
--- /dev/null
+++ b/include/asm-um/highmem.h
@@ -0,0 +1,12 @@
+#ifndef __UM_HIGHMEM_H
+#define __UM_HIGHMEM_H
+
+#include "asm/page.h"
+#include "asm/fixmap.h"
+#include "asm/arch/highmem.h"
+
+#undef PKMAP_BASE
+
+#define PKMAP_BASE ((FIXADDR_START - LAST_PKMAP * PAGE_SIZE) & PMD_MASK)
+
+#endif
diff --git a/include/asm-um/hw_irq.h b/include/asm-um/hw_irq.h
new file mode 100644
index 000000000000..4ee38c0b6a64
--- /dev/null
+++ b/include/asm-um/hw_irq.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_UM_HW_IRQ_H
+#define _ASM_UM_HW_IRQ_H
+
+#include "asm/irq.h"
+#include "asm/archparam.h"
+
+static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i)
+{}
+
+#endif
diff --git a/include/asm-um/ide.h b/include/asm-um/ide.h
new file mode 100644
index 000000000000..3d1ccebcfbaf
--- /dev/null
+++ b/include/asm-um/ide.h
@@ -0,0 +1,6 @@
+#ifndef __UM_IDE_H
+#define __UM_IDE_H
+
+#include "asm/arch/ide.h"
+
+#endif
diff --git a/include/asm-um/io.h b/include/asm-um/io.h
new file mode 100644
index 000000000000..90674056dcef
--- /dev/null
+++ b/include/asm-um/io.h
@@ -0,0 +1,36 @@
+#ifndef __UM_IO_H
+#define __UM_IO_H
+
+#include "asm/page.h"
+
+#define IO_SPACE_LIMIT 0xdeadbeef /* Sure hope nothing uses this */
+
+static inline int inb(unsigned long i) { return(0); }
+static inline void outb(char c, unsigned long i) { }
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ * These are pretty trivial
+ */
+static inline unsigned long virt_to_phys(volatile void * address)
+{
+        return __pa((void *) address);
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+        return __va(address);
+}
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)   p
+
+#endif
diff --git a/include/asm-um/ioctl.h b/include/asm-um/ioctl.h
new file mode 100644
index 000000000000..cc22157346db
--- /dev/null
+++ b/include/asm-um/ioctl.h
@@ -0,0 +1,6 @@
+#ifndef __UM_IOCTL_H
+#define __UM_IOCTL_H
+
+#include "asm/arch/ioctl.h"
+
+#endif
diff --git a/include/asm-um/ioctls.h b/include/asm-um/ioctls.h
new file mode 100644
index 000000000000..9a1a017de6a7
--- /dev/null
+++ b/include/asm-um/ioctls.h
@@ -0,0 +1,6 @@
+#ifndef __UM_IOCTLS_H
+#define __UM_IOCTLS_H
+
+#include "asm/arch/ioctls.h"
+
+#endif
diff --git a/include/asm-um/ipc.h b/include/asm-um/ipc.h
new file mode 100644
index 000000000000..e2ddc47f3e52
--- /dev/null
+++ b/include/asm-um/ipc.h
@@ -0,0 +1,6 @@
+#ifndef __UM_IPC_H
+#define __UM_IPC_H
+
+#include "asm/arch/ipc.h"
+
+#endif
diff --git a/include/asm-um/ipcbuf.h b/include/asm-um/ipcbuf.h
new file mode 100644
index 000000000000..bb2ad31dc434
--- /dev/null
+++ b/include/asm-um/ipcbuf.h
@@ -0,0 +1,6 @@
+#ifndef __UM_IPCBUF_H
+#define __UM_IPCBUF_H
+
+#include "asm/arch/ipcbuf.h"
+
+#endif
diff --git a/include/asm-um/irq.h b/include/asm-um/irq.h
new file mode 100644
index 000000000000..de389a477cdd
--- /dev/null
+++ b/include/asm-um/irq.h
@@ -0,0 +1,22 @@
+#ifndef __UM_IRQ_H
+#define __UM_IRQ_H
+
+#define TIMER_IRQ               0
+#define UMN_IRQ                 1
+#define CONSOLE_IRQ             2
+#define CONSOLE_WRITE_IRQ       3
+#define UBD_IRQ                 4
+#define UM_ETH_IRQ              5
+#define SSL_IRQ                 6
+#define SSL_WRITE_IRQ           7
+#define ACCEPT_IRQ              8
+#define MCONSOLE_IRQ            9
+#define WINCH_IRQ               10
+#define SIGIO_WRITE_IRQ         11
+#define TELNETD_IRQ             12
+#define XTERM_IRQ               13
+
+#define LAST_IRQ XTERM_IRQ
+#define NR_IRQS (LAST_IRQ + 1)
+
+#endif
diff --git a/include/asm-um/irq_vectors.h b/include/asm-um/irq_vectors.h
new file mode 100644
index 000000000000..62ddba6fc733
--- /dev/null
+++ b/include/asm-um/irq_vectors.h
@@ -0,0 +1,20 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_IRQ_VECTORS_H
+#define __UM_IRQ_VECTORS_H
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/keyboard.h b/include/asm-um/keyboard.h
new file mode 100644
index 000000000000..ee2e2303d0e4
--- /dev/null
+++ b/include/asm-um/keyboard.h
@@ -0,0 +1,6 @@
+#ifndef __UM_KEYBOARD_H
+#define __UM_KEYBOARD_H
+
+#include "asm/arch/keyboard.h"
+
+#endif
diff --git a/include/asm-um/kmap_types.h b/include/asm-um/kmap_types.h
new file mode 100644
index 000000000000..0b22ad776e76
--- /dev/null
+++ b/include/asm-um/kmap_types.h
@@ -0,0 +1,11 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_KMAP_TYPES_H
+#define __UM_KMAP_TYPES_H
+
+#include "asm/arch/kmap_types.h"
+
+#endif
diff --git a/include/asm-um/linkage.h b/include/asm-um/linkage.h
new file mode 100644
index 000000000000..27011652b015
--- /dev/null
+++ b/include/asm-um/linkage.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define FASTCALL(x)     x __attribute__((regparm(3)))
+#define fastcall        __attribute__((regparm(3)))
+
+#endif
diff --git a/include/asm-um/local.h b/include/asm-um/local.h
new file mode 100644
index 000000000000..9a280c5bb609
--- /dev/null
+++ b/include/asm-um/local.h
@@ -0,0 +1,6 @@
+#ifndef __UM_LOCAL_H
+#define __UM_LOCAL_H
+
+#include "asm/arch/local.h"
+
+#endif
diff --git a/include/asm-um/locks.h b/include/asm-um/locks.h
new file mode 100644
index 000000000000..f80030a3ef5a
--- /dev/null
+++ b/include/asm-um/locks.h
@@ -0,0 +1,6 @@
+#ifndef __UM_LOCKS_H
+#define __UM_LOCKS_H
+
+#include "asm/arch/locks.h"
+
+#endif
diff --git a/include/asm-um/mca_dma.h b/include/asm-um/mca_dma.h
new file mode 100644
index 000000000000..e492e4ec1392
--- /dev/null
+++ b/include/asm-um/mca_dma.h
@@ -0,0 +1,6 @@
+#ifndef mca___UM_DMA_H
+#define mca___UM_DMA_H
+
+#include "asm/arch/mca_dma.h"
+
+#endif
diff --git a/include/asm-um/mman.h b/include/asm-um/mman.h
new file mode 100644
index 000000000000..b09ed523019b
--- /dev/null
+++ b/include/asm-um/mman.h
@@ -0,0 +1,6 @@
+#ifndef __UM_MMAN_H
+#define __UM_MMAN_H
+
+#include "asm/arch/mman.h"
+
+#endif
diff --git a/include/asm-um/mmu.h b/include/asm-um/mmu.h
new file mode 100644
index 000000000000..2cf35c21d694
--- /dev/null
+++ b/include/asm-um/mmu.h
@@ -0,0 +1,22 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __MMU_H
+#define __MMU_H
+
+#include "um_mmu.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h
new file mode 100644
index 000000000000..89bff310b7a9
--- /dev/null
+++ b/include/asm-um/mmu_context.h
@@ -0,0 +1,76 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_MMU_CONTEXT_H
+#define __UM_MMU_CONTEXT_H
+
+#include "linux/sched.h"
+#include "choose-mode.h"
+
+#define get_mmu_context(task) do ; while(0)
+#define activate_context(tsk) do ; while(0)
+
+#define deactivate_mm(tsk,mm)   do { } while (0)
+
+static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
+{
+}
+
+extern void switch_mm_skas(int mm_fd);
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, 
+                             struct task_struct *tsk)
+{
+        unsigned cpu = smp_processor_id();
+
+        if(prev != next){
+                cpu_clear(cpu, prev->cpu_vm_mask);
+                cpu_set(cpu, next->cpu_vm_mask);
+                if(next != &init_mm)
+                        CHOOSE_MODE((void) 0, 
+                                    switch_mm_skas(next->context.skas.mm_fd));
+        }
+}
+
+static inline void enter_lazy_tlb(struct mm_struct *mm, 
+                                  struct task_struct *tsk)
+{
+}
+
+extern int init_new_context_skas(struct task_struct *task, 
+                                 struct mm_struct *mm);
+
+static inline int init_new_context_tt(struct task_struct *task, 
+                                      struct mm_struct *mm)
+{
+        return(0);
+}
+
+static inline int init_new_context(struct task_struct *task, 
+                                   struct mm_struct *mm)
+{
+        return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas, 
+                                task, mm));
+}
+
+extern void destroy_context_skas(struct mm_struct *mm);
+
+static inline void destroy_context(struct mm_struct *mm)
+{
+        CHOOSE_MODE((void) 0, destroy_context_skas(mm));
+}
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/module-generic.h b/include/asm-um/module-generic.h
new file mode 100644
index 000000000000..5a265f56b174
--- /dev/null
+++ b/include/asm-um/module-generic.h
@@ -0,0 +1,6 @@
+#ifndef __UM_MODULE_GENERIC_H
+#define __UM_MODULE_GENERIC_H
+
+#include "asm/arch/module.h"
+
+#endif
diff --git a/include/asm-um/module-i386.h b/include/asm-um/module-i386.h
new file mode 100644
index 000000000000..5ead4a0b2e35
--- /dev/null
+++ b/include/asm-um/module-i386.h
@@ -0,0 +1,13 @@
+#ifndef __UM_MODULE_I386_H
+#define __UM_MODULE_I386_H
+
+/* UML is simple */
+struct mod_arch_specific
+{
+};
+
+#define Elf_Shdr Elf32_Shdr
+#define Elf_Sym Elf32_Sym
+#define Elf_Ehdr Elf32_Ehdr
+
+#endif
diff --git a/include/asm-um/module-x86_64.h b/include/asm-um/module-x86_64.h
new file mode 100644
index 000000000000..35b5491d3e96
--- /dev/null
+++ b/include/asm-um/module-x86_64.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_MODULE_X86_64_H
+#define __UM_MODULE_X86_64_H
+
+/* UML is simple */
+struct mod_arch_specific
+{
+};
+
+#define Elf_Shdr Elf64_Shdr
+#define Elf_Sym Elf64_Sym
+#define Elf_Ehdr Elf64_Ehdr
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/msgbuf.h b/include/asm-um/msgbuf.h
new file mode 100644
index 000000000000..8ce8c30d5377
--- /dev/null
+++ b/include/asm-um/msgbuf.h
@@ -0,0 +1,6 @@
+#ifndef __UM_MSGBUF_H
+#define __UM_MSGBUF_H
+
+#include "asm/arch/msgbuf.h"
+
+#endif
diff --git a/include/asm-um/mtrr.h b/include/asm-um/mtrr.h
new file mode 100644
index 000000000000..5e9cd12c578d
--- /dev/null
+++ b/include/asm-um/mtrr.h
@@ -0,0 +1,6 @@
+#ifndef __UM_MTRR_H
+#define __UM_MTRR_H
+
+#include "asm/arch/mtrr.h"
+
+#endif
diff --git a/include/asm-um/namei.h b/include/asm-um/namei.h
new file mode 100644
index 000000000000..002984d5bc85
--- /dev/null
+++ b/include/asm-um/namei.h
@@ -0,0 +1,6 @@
+#ifndef __UM_NAMEI_H
+#define __UM_NAMEI_H
+
+#include "asm/arch/namei.h"
+
+#endif
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
new file mode 100644
index 000000000000..3620a08dc9f3
--- /dev/null
+++ b/include/asm-um/page.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
+ * Copyright 2003 PathScale, Inc.
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PAGE_H
+#define __UM_PAGE_H
+
+struct page;
+
+#include <linux/config.h>
+#include <asm/vm-flags.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT      12
+#define PAGE_SIZE       (1UL << PAGE_SHIFT)
+#define PAGE_MASK       (~(PAGE_SIZE-1))
+
+/*
+ * These are used to make use of C type-checking..
+ */
+
+#define clear_page(page)        memset((void *)(page), 0, PAGE_SIZE)
+#define copy_page(to,from)      memcpy((void *)(to), (void *)(from), PAGE_SIZE)
+
+#define clear_user_page(page, vaddr, pg)        clear_page(page)
+#define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
+
+#if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64_BIT)
+
+typedef struct { unsigned long pte_low, pte_high; } pte_t;
+typedef struct { unsigned long long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32))
+
+#define pte_get_bits(pte, bits) ((pte).pte_low & (bits))
+#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits))
+#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits))
+#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \
+                              smp_wmb(); \
+                              (to).pte_low = (from).pte_low; })
+#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high)
+#define pte_set_val(pte, phys, prot) \
+        ({ (pte).pte_high = (phys) >> 32; \
+           (pte).pte_low = (phys) | pgprot_val(prot); })
+
+typedef unsigned long long pfn_t;
+typedef unsigned long long phys_t;
+
+#else
+
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgd; } pgd_t;
+
+#ifdef CONFIG_3_LEVEL_PGTABLES
+typedef struct { unsigned long pmd; } pmd_t;
+#define pmd_val(x)      ((x).pmd)
+#define __pmd(x) ((pmd_t) { (x) } )
+#endif
+
+#define pte_val(x)      ((x).pte)
+
+
+#define pte_get_bits(p, bits) ((p).pte & (bits))
+#define pte_set_bits(p, bits) ((p).pte |= (bits))
+#define pte_clear_bits(p, bits) ((p).pte &= ~(bits))
+#define pte_copy(to, from) ((to).pte = (from).pte)
+#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE))
+#define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot))
+
+typedef unsigned long pfn_t;
+typedef unsigned long phys_t;
+
+#endif
+
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pgd_val(x)      ((x).pgd)
+#define pgprot_val(x)   ((x).pgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x)     ((pgprot_t) { (x) } )
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+extern unsigned long uml_physmem;
+
+#define PAGE_OFFSET (uml_physmem)
+#define KERNELBASE PAGE_OFFSET
+
+#define __va_space (8*1024*1024)
+
+extern unsigned long to_phys(void *virt);
+extern void *to_virt(unsigned long phys);
+#define __pa(virt) to_phys((void *) virt)
+#define __va(phys) to_virt((unsigned long) phys)
+
+#define page_to_pfn(page) ((page) - mem_map)
+#define pfn_to_page(pfn) (mem_map + (pfn))
+
+#define phys_to_pfn(p) ((p) >> PAGE_SHIFT)
+#define pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
+
+#define pfn_valid(pfn) ((pfn) < max_mapnr)
+#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))
+
+/* Pure 2^n version of get_order */
+static __inline__ int get_order(unsigned long size)
+{
+        int order;
+
+        size = (size-1) >> (PAGE_SHIFT-1);
+        order = -1;
+        do {
+                size >>= 1;
+                order++;
+        } while (size);
+        return order;
+}
+
+extern struct page *arch_validate(struct page *page, int mask, int order);
+#define HAVE_ARCH_VALIDATE
+
+extern void arch_free_page(struct page *page, int order);
+#define HAVE_ARCH_FREE_PAGE
+
+#endif
diff --git a/include/asm-um/page_offset.h b/include/asm-um/page_offset.h
new file mode 100644
index 000000000000..1c168dfbf359
--- /dev/null
+++ b/include/asm-um/page_offset.h
@@ -0,0 +1 @@
+#define PAGE_OFFSET_RAW (uml_physmem)
diff --git a/include/asm-um/param.h b/include/asm-um/param.h
new file mode 100644
index 000000000000..f914e7d67b01
--- /dev/null
+++ b/include/asm-um/param.h
@@ -0,0 +1,18 @@
+#ifndef _UM_PARAM_H
+#define _UM_PARAM_H
+
+#define EXEC_PAGESIZE   4096
+
+#ifndef NOGROUP
+#define NOGROUP         (-1)
+#endif
+
+#define MAXHOSTNAMELEN  64      /* max length of hostname */
+
+#ifdef __KERNEL__
+#define HZ 100
+#define USER_HZ 100        /* .. some user interfaces are in "ticks" */
+#define CLOCKS_PER_SEC (USER_HZ)  /* frequency at which times() counts */
+#endif
+
+#endif
diff --git a/include/asm-um/pci.h b/include/asm-um/pci.h
new file mode 100644
index 000000000000..59923199cdc3
--- /dev/null
+++ b/include/asm-um/pci.h
@@ -0,0 +1,7 @@
+#ifndef __UM_PCI_H
+#define __UM_PCI_H
+
+#define PCI_DMA_BUS_IS_PHYS     (1)
+#define pcibios_scan_all_fns(a, b)      0
+
+#endif
diff --git a/include/asm-um/pda.h b/include/asm-um/pda.h
new file mode 100644
index 000000000000..0d8bf33ffd42
--- /dev/null
+++ b/include/asm-um/pda.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PDA_X86_64_H
+#define __UM_PDA_X86_64_H
+
+/* XXX */
+struct foo {
+        unsigned int __softirq_pending;
+        unsigned int __nmi_count;
+};
+
+extern struct foo me;
+
+#define read_pda(me) (&me)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/percpu.h b/include/asm-um/percpu.h
new file mode 100644
index 000000000000..5723e2aab8e7
--- /dev/null
+++ b/include/asm-um/percpu.h
@@ -0,0 +1,6 @@
+#ifndef __UM_PERCPU_H
+#define __UM_PERCPU_H
+
+#include "asm/arch/percpu.h"
+
+#endif
diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h
new file mode 100644
index 000000000000..8fcb2fc0a892
--- /dev/null
+++ b/include/asm-um/pgalloc.h
@@ -0,0 +1,65 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright 2003 PathScale, Inc.
+ * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PGALLOC_H
+#define __UM_PGALLOC_H
+
+#include "linux/config.h"
+#include "linux/mm.h"
+#include "asm/fixmap.h"
+
+#define pmd_populate_kernel(mm, pmd, pte) \
+        set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
+
+#define pmd_populate(mm, pmd, pte)                              \
+        set_pmd(pmd, __pmd(_PAGE_TABLE +                        \
+                ((unsigned long long)page_to_pfn(pte) <<        \
+                        (unsigned long long) PAGE_SHIFT)))
+
+/*
+ * Allocate and free page tables.
+ */
+extern pgd_t *pgd_alloc(struct mm_struct *);
+extern void pgd_free(pgd_t *pgd);
+
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
+extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+        free_page((unsigned long) pte);
+}
+
+static inline void pte_free(struct page *pte)
+{
+        __free_page(pte);
+}
+
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+
+#ifdef CONFIG_3_LEVEL_PGTABLES
+/*
+ * In the 3-level case we free the pmds as part of the pgd.
+ */
+#define pmd_free(x)                     do { } while (0)
+#define __pmd_free_tlb(tlb,x)           do { } while (0)
+#endif
+
+#define check_pgt_cache()       do { } while (0)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/pgtable-2level.h b/include/asm-um/pgtable-2level.h
new file mode 100644
index 000000000000..61eb24734247
--- /dev/null
+++ b/include/asm-um/pgtable-2level.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright 2003 PathScale, Inc.
+ * Derived from include/asm-i386/pgtable.h
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PGTABLE_2LEVEL_H
+#define __UM_PGTABLE_2LEVEL_H
+
+#include <asm-generic/pgtable-nopmd.h>
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+
+#define PGDIR_SHIFT     22
+#define PGDIR_SIZE      (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK      (~(PGDIR_SIZE-1))
+
+/*
+ * entries per page directory level: the i386 is two-level, so
+ * we don't really have any PMD directory physically.
+ */
+#define PTRS_PER_PTE    1024
+#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
+#define PTRS_PER_PGD    1024
+#define FIRST_USER_PGD_NR       0
+
+#define pte_ERROR(e) \
+        printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
+               pte_val(e))
+#define pgd_ERROR(e) \
+        printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \
+               pgd_val(e))
+
+static inline int pgd_newpage(pgd_t pgd)        { return 0; }
+static inline void pgd_mkuptodate(pgd_t pgd)    { }
+
+#define pte_present(x)  (pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE))
+
+static inline pte_t pte_mknewprot(pte_t pte)
+{
+        pte_val(pte) |= _PAGE_NEWPROT;
+        return(pte);
+}
+
+static inline pte_t pte_mknewpage(pte_t pte)
+{
+        pte_val(pte) |= _PAGE_NEWPAGE;
+        return(pte);
+}
+
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+        /* If it's a swap entry, it needs to be marked _PAGE_NEWPAGE so
+         * fix_range knows to unmap it.  _PAGE_NEWPROT is specific to
+         * mapped pages.
+         */
+        *pteptr = pte_mknewpage(pteval);
+        if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr);
+}
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
+
+#define pte_page(x) pfn_to_page(pte_pfn(x))
+#define pte_none(x) !(pte_val(x) & ~_PAGE_NEWPAGE)
+#define pte_pfn(x) phys_to_pfn(pte_val(x))
+#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
+
+#define pmd_page_kernel(pmd) \
+        ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
+/*
+ * Bits 0 through 3 are taken
+ */
+#define PTE_FILE_MAX_BITS       28
+
+#define pte_to_pgoff(pte) (pte_val(pte) >> 4)
+
+#define pgoff_to_pte(off) ((pte_t) { ((off) << 4) + _PAGE_FILE })
+
+#endif
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h
new file mode 100644
index 000000000000..faf051c2c418
--- /dev/null
+++ b/include/asm-um/pgtable-3level.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2003 PathScale Inc
+ * Derived from include/asm-i386/pgtable.h
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PGTABLE_3LEVEL_H
+#define __UM_PGTABLE_3LEVEL_H
+
+#include <asm-generic/pgtable-nopud.h>
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+
+#define PGDIR_SHIFT     30
+#define PGDIR_SIZE      (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK      (~(PGDIR_SIZE-1))
+
+/* PMD_SHIFT determines the size of the area a second-level page table can
+ * map
+ */
+
+#define PMD_SHIFT       21
+#define PMD_SIZE        (1UL << PMD_SHIFT)
+#define PMD_MASK        (~(PMD_SIZE-1))
+
+/*
+ * entries per page directory level
+ */
+
+#define PTRS_PER_PTE 512
+#define PTRS_PER_PMD 512
+#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
+#define PTRS_PER_PGD 512
+#define FIRST_USER_PGD_NR       0
+
+#define pte_ERROR(e) \
+        printk("%s:%d: bad pte %p(%016lx).\n", __FILE__, __LINE__, &(e), \
+               pte_val(e))
+#define pmd_ERROR(e) \
+        printk("%s:%d: bad pmd %p(%016lx).\n", __FILE__, __LINE__, &(e), \
+               pmd_val(e))
+#define pgd_ERROR(e) \
+        printk("%s:%d: bad pgd %p(%016lx).\n", __FILE__, __LINE__, &(e), \
+               pgd_val(e))
+
+#define pud_none(x)     (!(pud_val(x) & ~_PAGE_NEWPAGE))
+#define pud_bad(x)      ((pud_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+#define pud_present(x)  (pud_val(x) & _PAGE_PRESENT)
+#define pud_populate(mm, pud, pmd) \
+        set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
+
+#define set_pud(pudptr, pudval) set_64bit((phys_t *) (pudptr), pud_val(pudval))
+static inline int pgd_newpage(pgd_t pgd)
+{
+        return(pgd_val(pgd) & _PAGE_NEWPAGE);
+}
+
+static inline void pgd_mkuptodate(pgd_t pgd) { pgd_val(pgd) &= ~_PAGE_NEWPAGE; }
+
+
+#define pte_present(x)  pte_get_bits(x, (_PAGE_PRESENT | _PAGE_PROTNONE))
+
+static inline pte_t pte_mknewprot(pte_t pte)
+{
+        pte_set_bits(pte, _PAGE_NEWPROT);
+        return(pte);
+}
+
+static inline pte_t pte_mknewpage(pte_t pte)
+{
+        pte_set_bits(pte, _PAGE_NEWPAGE);
+        return(pte);
+}
+
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+        pte_copy(*pteptr, pteval);
+
+        /* If it's a swap entry, it needs to be marked _PAGE_NEWPAGE so
+         * fix_range knows to unmap it.  _PAGE_NEWPROT is specific to
+         * mapped pages.
+         */
+
+        *pteptr = pte_mknewpage(*pteptr);
+        if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr);
+}
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+#define set_pmd(pmdptr, pmdval) set_64bit((phys_t *) (pmdptr), pmd_val(pmdval))
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+        pmd_t *pmd = (pmd_t *) __get_free_page(GFP_KERNEL);
+
+        if(pmd)
+                memset(pmd, 0, PAGE_SIZE);
+
+        return pmd;
+}
+
+static inline void pmd_free(pmd_t *pmd){
+        free_page((unsigned long) pmd);
+}
+
+#define __pmd_free_tlb(tlb,x)   do { } while (0)
+
+static inline void pud_clear (pud_t * pud) { }
+
+#define pud_page(pud) \
+        ((struct page *) __va(pud_val(pud) & PAGE_MASK))
+
+/* Find an entry in the second-level page table.. */
+#define pmd_offset(pud, address) ((pmd_t *) pud_page(*(pud)) + \
+                        pmd_index(address))
+
+#define pte_page(x) pfn_to_page(pte_pfn(x))
+
+static inline int pte_none(pte_t pte)
+{
+        return pte_is_zero(pte);
+}
+
+static inline unsigned long pte_pfn(pte_t pte)
+{
+        return phys_to_pfn(pte_val(pte));
+}
+
+static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot)
+{
+        pte_t pte;
+        phys_t phys = pfn_to_phys(page_nr);
+
+        pte_set_val(pte, phys, pgprot);
+        return pte;
+}
+
+static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot)
+{
+        return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot));
+}
+
+/*
+ * Bits 0 through 3 are taken in the low part of the pte,
+ * put the 32 bits of offset into the high part.
+ */
+#define PTE_FILE_MAX_BITS       32
+
+#ifdef CONFIG_64_BIT
+
+#define pte_to_pgoff(p) ((p).pte >> 32)
+
+#define pgoff_to_pte(off) ((pte_t) { ((off) < 32) | _PAGE_FILE })
+
+#else
+
+#define pte_to_pgoff(pte) ((pte).pte_high)
+
+#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) })
+
+#endif
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
new file mode 100644
index 000000000000..71f9c0c78c0c
--- /dev/null
+++ b/include/asm-um/pgtable.h
@@ -0,0 +1,386 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright 2003 PathScale, Inc.
+ * Derived from include/asm-i386/pgtable.h
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PGTABLE_H
+#define __UM_PGTABLE_H
+
+#include "linux/sched.h"
+#include "linux/linkage.h"
+#include "asm/processor.h"
+#include "asm/page.h"
+#include "asm/fixmap.h"
+
+#define _PAGE_PRESENT   0x001
+#define _PAGE_NEWPAGE   0x002
+#define _PAGE_NEWPROT   0x004
+#define _PAGE_FILE      0x008   /* set:pagecache unset:swap */
+#define _PAGE_PROTNONE  0x010   /* If not present */
+#define _PAGE_RW        0x020
+#define _PAGE_USER      0x040
+#define _PAGE_ACCESSED  0x080
+#define _PAGE_DIRTY     0x100
+
+#ifdef CONFIG_3_LEVEL_PGTABLES
+#include "asm/pgtable-3level.h"
+#else
+#include "asm/pgtable-2level.h"
+#endif
+
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+
+extern void *um_virt_to_phys(struct task_struct *task, unsigned long virt,
+                             pte_t *pte_out);
+
+/* zero page used for uninitialized stuff */
+extern unsigned long *empty_zero_page;
+
+#define pgtable_cache_init() do ; while (0)
+
+/*
+ * pgd entries used up by user/kernel:
+ */
+
+#define USER_PGD_PTRS (TASK_SIZE >> PGDIR_SHIFT)
+#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
+
+#ifndef __ASSEMBLY__
+/* Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts.  That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+
+extern unsigned long end_iomem;
+
+#define VMALLOC_OFFSET  (__va_space)
+#define VMALLOC_START ((end_iomem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+
+#ifdef CONFIG_HIGHMEM
+# define VMALLOC_END    (PKMAP_BASE-2*PAGE_SIZE)
+#else
+# define VMALLOC_END    (FIXADDR_START-2*PAGE_SIZE)
+#endif
+
+#define REGION_SHIFT    (sizeof(pte_t) * 8 - 4)
+#define REGION_MASK     (((unsigned long) 0xf) << REGION_SHIFT)
+
+#define _PAGE_TABLE     (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _KERNPG_TABLE   (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+
+#define PAGE_NONE       __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
+#define PAGE_SHARED     __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
+#define PAGE_COPY       __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
+#define PAGE_READONLY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
+#define PAGE_KERNEL     __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define PAGE_KERNEL_RO  __pgprot(_PAGE_PRESENT | _PAGE_DIRTY | _PAGE_ACCESSED)
+
+/*
+ * The i386 can't do page protection for execute, and considers that the same are read.
+ * Also, write permissions imply read permissions. This is the closest we can get..
+ */
+#define __P000  PAGE_NONE
+#define __P001  PAGE_READONLY
+#define __P010  PAGE_COPY
+#define __P011  PAGE_COPY
+#define __P100  PAGE_READONLY
+#define __P101  PAGE_READONLY
+#define __P110  PAGE_COPY
+#define __P111  PAGE_COPY
+
+#define __S000  PAGE_NONE
+#define __S001  PAGE_READONLY
+#define __S010  PAGE_SHARED
+#define __S011  PAGE_SHARED
+#define __S100  PAGE_READONLY
+#define __S101  PAGE_READONLY
+#define __S110  PAGE_SHARED
+#define __S111  PAGE_SHARED
+
+/*
+ * Define this if things work differently on an i386 and an i486:
+ * it will (on an i486) warn about kernel memory accesses that are
+ * done without a 'verify_area(VERIFY_WRITE,..)'
+ */
+#undef TEST_VERIFY_AREA
+
+/* page table for 0-4MB for everybody */
+extern unsigned long pg0[1024];
+
+/*
+ * BAD_PAGETABLE is used when we need a bogus page-table, while
+ * BAD_PAGE is used for a bogus page.
+ *
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+extern pte_t __bad_page(void);
+extern pte_t * __bad_pagetable(void);
+
+#define BAD_PAGETABLE __bad_pagetable()
+#define BAD_PAGE __bad_page()
+
+#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)
+
+/* number of bits that fit into a memory pointer */
+#define BITS_PER_PTR                    (8*sizeof(unsigned long))
+
+/* to align the pointer to a pointer address */
+#define PTR_MASK                        (~(sizeof(void*)-1))
+
+/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
+/* 64-bit machines, beware!  SRB. */
+#define SIZEOF_PTR_LOG2                 3
+
+/* to find an entry in a page-table */
+#define PAGE_PTR(address) \
+((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
+
+#define pte_clear(mm,addr,xp) pte_set_val(*(xp), (phys_t) 0, __pgprot(_PAGE_NEWPAGE))
+
+#define pmd_none(x)     (!(pmd_val(x) & ~_PAGE_NEWPAGE))
+#define pmd_bad(x)      ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+#define pmd_present(x)  (pmd_val(x) & _PAGE_PRESENT)
+#define pmd_clear(xp)   do { pmd_val(*(xp)) = _PAGE_NEWPAGE; } while (0)
+
+#define pmd_newpage(x)  (pmd_val(x) & _PAGE_NEWPAGE)
+#define pmd_mkuptodate(x) (pmd_val(x) &= ~_PAGE_NEWPAGE)
+
+#define pud_newpage(x)  (pud_val(x) & _PAGE_NEWPAGE)
+#define pud_mkuptodate(x) (pud_val(x) &= ~_PAGE_NEWPAGE)
+
+#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
+
+#define pmd_page(pmd) phys_to_page(pmd_val(pmd) & PAGE_MASK)
+
+#define pte_address(x) (__va(pte_val(x) & PAGE_MASK))
+#define mk_phys(a, r) ((a) + (((unsigned long) r) << REGION_SHIFT))
+#define phys_addr(p) ((p) & ~REGION_MASK)
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+static inline int pte_user(pte_t pte)
+{
+        return((pte_get_bits(pte, _PAGE_USER)) &&
+               !(pte_get_bits(pte, _PAGE_PROTNONE)));
+}
+
+static inline int pte_read(pte_t pte)
+{ 
+        return((pte_get_bits(pte, _PAGE_USER)) &&
+               !(pte_get_bits(pte, _PAGE_PROTNONE)));
+}
+
+static inline int pte_exec(pte_t pte){
+        return((pte_get_bits(pte, _PAGE_USER)) &&
+               !(pte_get_bits(pte, _PAGE_PROTNONE)));
+}
+
+static inline int pte_write(pte_t pte)
+{
+        return((pte_get_bits(pte, _PAGE_RW)) &&
+               !(pte_get_bits(pte, _PAGE_PROTNONE)));
+}
+
+/*
+ * The following only works if pte_present() is not true.
+ */
+static inline int pte_file(pte_t pte)
+{
+        return pte_get_bits(pte, _PAGE_FILE);
+}
+
+static inline int pte_dirty(pte_t pte)
+{
+        return pte_get_bits(pte, _PAGE_DIRTY);
+}
+
+static inline int pte_young(pte_t pte)
+{
+        return pte_get_bits(pte, _PAGE_ACCESSED);
+}
+
+static inline int pte_newpage(pte_t pte)
+{
+        return pte_get_bits(pte, _PAGE_NEWPAGE);
+}
+
+static inline int pte_newprot(pte_t pte)
+{ 
+        return(pte_present(pte) && (pte_get_bits(pte, _PAGE_NEWPROT)));
+}
+
+static inline pte_t pte_rdprotect(pte_t pte)
+{ 
+        pte_clear_bits(pte, _PAGE_USER);
+        return(pte_mknewprot(pte));
+}
+
+static inline pte_t pte_exprotect(pte_t pte)
+{ 
+        pte_clear_bits(pte, _PAGE_USER);
+        return(pte_mknewprot(pte));
+}
+
+static inline pte_t pte_mkclean(pte_t pte)
+{
+        pte_clear_bits(pte, _PAGE_DIRTY);
+        return(pte);
+}
+
+static inline pte_t pte_mkold(pte_t pte)        
+{ 
+        pte_clear_bits(pte, _PAGE_ACCESSED);
+        return(pte);
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{ 
+        pte_clear_bits(pte, _PAGE_RW);
+        return(pte_mknewprot(pte)); 
+}
+
+static inline pte_t pte_mkread(pte_t pte)
+{ 
+        pte_set_bits(pte, _PAGE_RW);
+        return(pte_mknewprot(pte)); 
+}
+
+static inline pte_t pte_mkexec(pte_t pte)
+{ 
+        pte_set_bits(pte, _PAGE_USER);
+        return(pte_mknewprot(pte)); 
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{ 
+        pte_set_bits(pte, _PAGE_DIRTY);
+        return(pte);
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+        pte_set_bits(pte, _PAGE_ACCESSED);
+        return(pte);
+}
+
+static inline pte_t pte_mkwrite(pte_t pte)      
+{
+        pte_set_bits(pte, _PAGE_RW);
+        return(pte_mknewprot(pte)); 
+}
+
+static inline pte_t pte_mkuptodate(pte_t pte)   
+{
+        pte_clear_bits(pte, _PAGE_NEWPAGE);
+        if(pte_present(pte))
+                pte_clear_bits(pte, _PAGE_NEWPROT);
+        return(pte); 
+}
+
+extern phys_t page_to_phys(struct page *page);
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+
+extern pte_t mk_pte(struct page *page, pgprot_t pgprot);
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+        pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot);
+        if(pte_present(pte)) pte = pte_mknewpage(pte_mknewprot(pte));
+        return pte; 
+}
+
+#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
+/*
+ * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
+ *
+ * this macro returns the index of the entry in the pgd page which would
+ * control the given virtual address
+ */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+
+#define pgd_index_k(addr) pgd_index(addr)
+
+/*
+ * pgd_offset() returns a (pgd_t *)
+ * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
+ */
+#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
+
+/*
+ * a shortcut which implies the use of the kernel's pgd, instead
+ * of a process's
+ */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+/*
+ * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
+ *
+ * this macro returns the index of the entry in the pmd page which would
+ * control the given virtual address
+ */
+#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
+
+/*
+ * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
+ *
+ * this macro returns the index of the entry in the pte page which would
+ * control the given virtual address
+ */
+#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset_kernel(dir, address) \
+        ((pte_t *) pmd_page_kernel(*(dir)) +  pte_index(address))
+#define pte_offset_map(dir, address) \
+        ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
+#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
+#define pte_unmap(pte) do { } while (0)
+#define pte_unmap_nested(pte) do { } while (0)
+
+#define update_mmu_cache(vma,address,pte) do ; while (0)
+
+/* Encode and de-code a swap entry */
+#define __swp_type(x)                   (((x).val >> 4) & 0x3f)
+#define __swp_offset(x)                 ((x).val >> 11)
+
+#define __swp_entry(type, offset) \
+        ((swp_entry_t) { ((type) << 4) | ((offset) << 11) })
+#define __pte_to_swp_entry(pte) \
+        ((swp_entry_t) { pte_val(pte_mkuptodate(pte)) })
+#define __swp_entry_to_pte(x)           ((pte_t) { (x).val })
+
+#define kern_addr_valid(addr) (1)
+
+#include <asm-generic/pgtable.h>
+
+#include <asm-generic/pgtable-nopud.h>
+
+#endif
+#endif
+
+extern struct page *phys_to_page(const unsigned long phys);
+extern struct page *__virt_to_page(const unsigned long virt);
+#define virt_to_page(addr) __virt_to_page((const unsigned long) addr)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/poll.h b/include/asm-um/poll.h
new file mode 100644
index 000000000000..1eb4e1bc6383
--- /dev/null
+++ b/include/asm-um/poll.h
@@ -0,0 +1,6 @@
+#ifndef __UM_POLL_H
+#define __UM_POLL_H
+
+#include "asm/arch/poll.h"
+
+#endif
diff --git a/include/asm-um/posix_types.h b/include/asm-um/posix_types.h
new file mode 100644
index 000000000000..32fb4198f644
--- /dev/null
+++ b/include/asm-um/posix_types.h
@@ -0,0 +1,6 @@
+#ifndef __UM_POSIX_TYPES_H
+#define __UM_POSIX_TYPES_H
+
+#include "asm/arch/posix_types.h"
+
+#endif
diff --git a/include/asm-um/prctl.h b/include/asm-um/prctl.h
new file mode 100644
index 000000000000..64b6d099bdd5
--- /dev/null
+++ b/include/asm-um/prctl.h
@@ -0,0 +1,6 @@
+#ifndef __UM_PRCTL_H
+#define __UM_PRCTL_H
+
+#include "asm/arch/prctl.h"
+
+#endif
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
new file mode 100644
index 000000000000..038ba6fc88b8
--- /dev/null
+++ b/include/asm-um/processor-generic.h
@@ -0,0 +1,150 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PROCESSOR_GENERIC_H
+#define __UM_PROCESSOR_GENERIC_H
+
+struct pt_regs;
+
+struct task_struct;
+
+#include "linux/config.h"
+#include "asm/ptrace.h"
+#include "choose-mode.h"
+
+struct mm_struct;
+
+struct thread_struct {
+        int forking;
+        int nsyscalls;
+        struct pt_regs regs;
+        unsigned long cr2;
+        int err;
+        unsigned long trap_no;
+        int singlestep_syscall;
+        void *fault_addr;
+        void *fault_catcher;
+        struct task_struct *prev_sched;
+        unsigned long temp_stack;
+        void *exec_buf;
+        struct arch_thread arch;
+        union {
+#ifdef CONFIG_MODE_TT
+                struct {
+                        int extern_pid;
+                        int tracing;
+                        int switch_pipe[2];
+                        int vm_seq;
+                } tt;
+#endif
+#ifdef CONFIG_MODE_SKAS
+                struct {
+                        void *switch_buf;
+                        void *fork_buf;
+                        int mm_count;
+                } skas;
+#endif
+        } mode;
+        struct {
+                int op;
+                union {
+                        struct {
+                                int pid;
+                        } fork, exec;
+                        struct {
+                                int (*proc)(void *);
+                                void *arg;
+                        } thread;
+                        struct {
+                                void (*proc)(void *);
+                                void *arg;
+                        } cb;
+                } u;
+        } request;
+};
+
+#define INIT_THREAD \
+{ \
+        .forking                = 0, \
+        .nsyscalls              = 0, \
+        .regs                   = EMPTY_REGS, \
+        .cr2                    = 0, \
+        .err                    = 0, \
+        .fault_addr             = NULL, \
+        .prev_sched             = NULL, \
+        .temp_stack             = 0, \
+        .exec_buf               = NULL, \
+        .arch                   = INIT_ARCH_THREAD, \
+        .request                = { 0 } \
+}
+
+typedef struct {
+        unsigned long seg;
+} mm_segment_t;
+
+extern struct task_struct *alloc_task_struct(void);
+
+extern void release_thread(struct task_struct *);
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+extern void dump_thread(struct pt_regs *regs, struct user *u);
+extern void prepare_to_copy(struct task_struct *tsk);
+
+extern unsigned long thread_saved_pc(struct task_struct *t);
+
+static inline void mm_copy_segments(struct mm_struct *from_mm,
+                                    struct mm_struct *new_mm)
+{
+}
+
+#define init_stack      (init_thread_union.stack)
+
+/*
+ * User space process size: 3GB (default).
+ */
+extern unsigned long task_size;
+
+#define TASK_SIZE       (task_size)
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE      (0x40000000)
+
+extern void start_thread(struct pt_regs *regs, unsigned long entry, 
+                         unsigned long stack);
+
+struct cpuinfo_um {
+        unsigned long loops_per_jiffy;
+        int ipi_pipe[2];
+};
+
+extern struct cpuinfo_um boot_cpu_data;
+
+#define my_cpu_data             cpu_data[smp_processor_id()]
+
+#ifdef CONFIG_SMP
+extern struct cpuinfo_um cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#else
+#define cpu_data (&boot_cpu_data)
+#define current_cpu_data boot_cpu_data
+#endif
+
+#define KSTK_EIP(tsk) (PT_REGS_IP(&tsk->thread.regs))
+#define KSTK_ESP(tsk) (PT_REGS_SP(&tsk->thread.regs))
+#define get_wchan(p) (0)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h
new file mode 100644
index 000000000000..2deb8f1adbf1
--- /dev/null
+++ b/include/asm-um/processor-i386.h
@@ -0,0 +1,54 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PROCESSOR_I386_H
+#define __UM_PROCESSOR_I386_H
+
+extern int host_has_xmm;
+extern int host_has_cmov;
+
+struct arch_thread {
+        unsigned long debugregs[8];
+        int debugregs_seq;
+};
+
+#define INIT_ARCH_THREAD { .debugregs           = { [ 0 ... 7 ] = 0 }, \
+                           .debugregs_seq       = 0 }
+
+#include "asm/arch/user.h"
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+static inline void rep_nop(void)
+{
+        __asm__ __volatile__("rep;nop": : :"memory");
+}
+
+#define cpu_relax()     rep_nop()
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter"). Stolen
+ * from asm-i386/processor.h
+ */
+#define current_text_addr() \
+        ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
+
+#define ARCH_IS_STACKGROW(address) \
+       (address + 32 >= UPT_SP(&current->thread.regs.regs))
+
+#include "asm/processor-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/processor-ppc.h b/include/asm-um/processor-ppc.h
new file mode 100644
index 000000000000..959323151229
--- /dev/null
+++ b/include/asm-um/processor-ppc.h
@@ -0,0 +1,15 @@
+#ifndef __UM_PROCESSOR_PPC_H
+#define __UM_PROCESSOR_PPC_H
+
+#if defined(__ASSEMBLY__)
+
+#define CONFIG_PPC_MULTIPLATFORM
+#include "arch/processor.h"
+
+#else
+
+#include "asm/processor-generic.h"
+
+#endif
+
+#endif
diff --git a/include/asm-um/processor-x86_64.h b/include/asm-um/processor-x86_64.h
new file mode 100644
index 000000000000..a1ae3a4cd938
--- /dev/null
+++ b/include/asm-um/processor-x86_64.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PROCESSOR_X86_64_H
+#define __UM_PROCESSOR_X86_64_H
+
+#include "asm/arch/user.h"
+
+struct arch_thread {
+};
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+extern inline void rep_nop(void)
+{
+        __asm__ __volatile__("rep;nop": : :"memory");
+}
+
+#define cpu_relax()   rep_nop()
+
+#define INIT_ARCH_THREAD { }
+
+#define current_text_addr() \
+        ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
+
+#define ARCH_IS_STACKGROW(address) \
+        (address + 128 >= UPT_SP(&current->thread.regs.regs))
+
+#include "asm/processor-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h
new file mode 100644
index 000000000000..46599ac44037
--- /dev/null
+++ b/include/asm-um/ptrace-generic.h
@@ -0,0 +1,76 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PTRACE_GENERIC_H
+#define __UM_PTRACE_GENERIC_H
+
+#ifndef __ASSEMBLY__
+
+#include "linux/config.h"
+
+#define pt_regs pt_regs_subarch
+#define show_regs show_regs_subarch
+#define send_sigtrap send_sigtrap_subarch
+
+#include "asm/arch/ptrace.h"
+
+#undef pt_regs
+#undef show_regs
+#undef send_sigtrap
+#undef user_mode
+#undef instruction_pointer
+
+#include "sysdep/ptrace.h"
+
+struct pt_regs {
+        union uml_pt_regs regs;
+};
+
+#define EMPTY_REGS { regs : EMPTY_UML_PT_REGS }
+
+#define PT_REGS_IP(r) UPT_IP(&(r)->regs)
+#define PT_REGS_SP(r) UPT_SP(&(r)->regs)
+
+#define PT_REG(r, reg) UPT_REG(&(r)->regs, reg)
+#define PT_REGS_SET(r, reg, val) UPT_SET(&(r)->regs, reg, val)
+
+#define PT_REGS_SET_SYSCALL_RETURN(r, res) \
+        UPT_SET_SYSCALL_RETURN(&(r)->regs, res)
+#define PT_REGS_RESTART_SYSCALL(r) UPT_RESTART_SYSCALL(&(r)->regs)
+
+#define PT_REGS_SYSCALL_NR(r) UPT_SYSCALL_NR(&(r)->regs)
+
+#define PT_REGS_SC(r) UPT_SC(&(r)->regs)
+
+#define instruction_pointer(regs) PT_REGS_IP(regs)
+
+struct task_struct;
+
+extern unsigned long getreg(struct task_struct *child, int regno);
+extern int putreg(struct task_struct *child, int regno, unsigned long value);
+extern int get_fpregs(unsigned long buf, struct task_struct *child);
+extern int set_fpregs(unsigned long buf, struct task_struct *child);
+extern int get_fpxregs(unsigned long buf, struct task_struct *child);
+extern int set_fpxregs(unsigned long buf, struct task_struct *tsk);
+
+extern void show_regs(struct pt_regs *regs);
+
+extern void send_sigtrap(struct task_struct *tsk, union uml_pt_regs *regs,
+                         int error_code);
+
+#endif
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/ptrace-i386.h b/include/asm-um/ptrace-i386.h
new file mode 100644
index 000000000000..9e47590ec293
--- /dev/null
+++ b/include/asm-um/ptrace-i386.h
@@ -0,0 +1,46 @@
+/* 
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PTRACE_I386_H
+#define __UM_PTRACE_I386_H
+
+#include "sysdep/ptrace.h"
+#include "asm/ptrace-generic.h"
+
+#define PT_REGS_EAX(r) UPT_EAX(&(r)->regs)
+#define PT_REGS_EBX(r) UPT_EBX(&(r)->regs)
+#define PT_REGS_ECX(r) UPT_ECX(&(r)->regs)
+#define PT_REGS_EDX(r) UPT_EDX(&(r)->regs)
+#define PT_REGS_ESI(r) UPT_ESI(&(r)->regs)
+#define PT_REGS_EDI(r) UPT_EDI(&(r)->regs)
+#define PT_REGS_EBP(r) UPT_EBP(&(r)->regs)
+
+#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
+#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
+#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
+#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
+#define PT_REGS_FS(r) UPT_FS(&(r)->regs)
+#define PT_REGS_GS(r) UPT_GS(&(r)->regs)
+
+#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
+
+#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_EAX(r)
+#define PT_REGS_SYSCALL_RET(r) PT_REGS_EAX(r)
+#define PT_FIX_EXEC_STACK(sp) do ; while(0)
+
+#define user_mode(r) UPT_IS_USER(&(r)->regs)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/ptrace-x86_64.h b/include/asm-um/ptrace-x86_64.h
new file mode 100644
index 000000000000..c34be39b78b2
--- /dev/null
+++ b/include/asm-um/ptrace-x86_64.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PTRACE_X86_64_H
+#define __UM_PTRACE_X86_64_H
+
+#include "linux/compiler.h"
+
+#define signal_fault signal_fault_x86_64
+#define __FRAME_OFFSETS /* Needed to get the R* macros */
+#include "asm/ptrace-generic.h"
+#undef signal_fault
+
+void signal_fault(struct pt_regs_subarch *regs, void *frame, char *where);
+
+#define FS_BASE (21 * sizeof(unsigned long))
+#define GS_BASE (22 * sizeof(unsigned long))
+#define DS (23 * sizeof(unsigned long))
+#define ES (24 * sizeof(unsigned long))
+#define FS (25 * sizeof(unsigned long))
+#define GS (26 * sizeof(unsigned long))
+
+#define PT_REGS_RBX(r) UPT_RBX(&(r)->regs)
+#define PT_REGS_RCX(r) UPT_RCX(&(r)->regs)
+#define PT_REGS_RDX(r) UPT_RDX(&(r)->regs)
+#define PT_REGS_RSI(r) UPT_RSI(&(r)->regs)
+#define PT_REGS_RDI(r) UPT_RDI(&(r)->regs)
+#define PT_REGS_RBP(r) UPT_RBP(&(r)->regs)
+#define PT_REGS_RAX(r) UPT_RAX(&(r)->regs)
+#define PT_REGS_R8(r) UPT_R8(&(r)->regs)
+#define PT_REGS_R9(r) UPT_R9(&(r)->regs)
+#define PT_REGS_R10(r) UPT_R10(&(r)->regs)
+#define PT_REGS_R11(r) UPT_R11(&(r)->regs)
+#define PT_REGS_R12(r) UPT_R12(&(r)->regs)
+#define PT_REGS_R13(r) UPT_R13(&(r)->regs)
+#define PT_REGS_R14(r) UPT_R14(&(r)->regs)
+#define PT_REGS_R15(r) UPT_R15(&(r)->regs)
+
+#define PT_REGS_FS(r) UPT_FS(&(r)->regs)
+#define PT_REGS_GS(r) UPT_GS(&(r)->regs)
+#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
+#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
+#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
+#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
+
+#define PT_REGS_ORIG_RAX(r) UPT_ORIG_RAX(&(r)->regs)
+#define PT_REGS_RIP(r) UPT_IP(&(r)->regs)
+#define PT_REGS_RSP(r) UPT_SP(&(r)->regs)
+
+#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
+
+/* XXX */
+#define user_mode(r) UPT_IS_USER(&(r)->regs)
+#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_RAX(r)
+#define PT_REGS_SYSCALL_RET(r) PT_REGS_RAX(r)
+
+#define PT_FIX_EXEC_STACK(sp) do ; while(0)
+
+#define profile_pc(regs) PT_REGS_IP(regs)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/resource.h b/include/asm-um/resource.h
new file mode 100644
index 000000000000..c9b074001252
--- /dev/null
+++ b/include/asm-um/resource.h
@@ -0,0 +1,6 @@
+#ifndef __UM_RESOURCE_H
+#define __UM_RESOURCE_H
+
+#include "asm/arch/resource.h"
+
+#endif
diff --git a/include/asm-um/rwlock.h b/include/asm-um/rwlock.h
new file mode 100644
index 000000000000..ff383aafc9fe
--- /dev/null
+++ b/include/asm-um/rwlock.h
@@ -0,0 +1,6 @@
+#ifndef __UM_RWLOCK_H
+#define __UM_RWLOCK_H
+
+#include "asm/arch/rwlock.h"
+
+#endif
diff --git a/include/asm-um/rwsem.h b/include/asm-um/rwsem.h
new file mode 100644
index 000000000000..661c0e54702b
--- /dev/null
+++ b/include/asm-um/rwsem.h
@@ -0,0 +1,10 @@
+#ifndef __UM_RWSEM_H__
+#define __UM_RWSEM_H__
+
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
+#define __builtin_expect(exp,c) (exp)
+#endif
+
+#include "asm/arch/rwsem.h"
+
+#endif
diff --git a/include/asm-um/scatterlist.h b/include/asm-um/scatterlist.h
new file mode 100644
index 000000000000..e92016aa2079
--- /dev/null
+++ b/include/asm-um/scatterlist.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SCATTERLIST_H
+#define __UM_SCATTERLIST_H
+
+#include "asm/arch/scatterlist.h"
+
+#endif
diff --git a/include/asm-um/sections.h b/include/asm-um/sections.h
new file mode 100644
index 000000000000..6b0231eefea8
--- /dev/null
+++ b/include/asm-um/sections.h
@@ -0,0 +1,7 @@
+#ifndef _UM_SECTIONS_H
+#define _UM_SECTIONS_H
+
+/* nothing to see, move along */
+#include <asm-generic/sections.h>
+
+#endif
diff --git a/include/asm-um/segment.h b/include/asm-um/segment.h
new file mode 100644
index 000000000000..55e40301f625
--- /dev/null
+++ b/include/asm-um/segment.h
@@ -0,0 +1,4 @@
+#ifndef __UM_SEGMENT_H
+#define __UM_SEGMENT_H
+
+#endif
diff --git a/include/asm-um/semaphore.h b/include/asm-um/semaphore.h
new file mode 100644
index 000000000000..ff13c34de421
--- /dev/null
+++ b/include/asm-um/semaphore.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SEMAPHORE_H
+#define __UM_SEMAPHORE_H
+
+#include "asm/arch/semaphore.h"
+
+#endif
diff --git a/include/asm-um/sembuf.h b/include/asm-um/sembuf.h
new file mode 100644
index 000000000000..1ae82c14ff86
--- /dev/null
+++ b/include/asm-um/sembuf.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SEMBUF_H
+#define __UM_SEMBUF_H
+
+#include "asm/arch/sembuf.h"
+
+#endif
diff --git a/include/asm-um/serial.h b/include/asm-um/serial.h
new file mode 100644
index 000000000000..61ad07cfd2d5
--- /dev/null
+++ b/include/asm-um/serial.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SERIAL_H
+#define __UM_SERIAL_H
+
+#include "asm/arch/serial.h"
+
+#endif
diff --git a/include/asm-um/setup.h b/include/asm-um/setup.h
new file mode 100644
index 000000000000..c85252e803c1
--- /dev/null
+++ b/include/asm-um/setup.h
@@ -0,0 +1,9 @@
+#ifndef SETUP_H_INCLUDED
+#define SETUP_H_INCLUDED
+
+/* POSIX mandated with _POSIX_ARG_MAX that we can rely on 4096 chars in the
+ * command line, so this choice is ok.*/
+
+#define COMMAND_LINE_SIZE 4096
+
+#endif          /* SETUP_H_INCLUDED */
diff --git a/include/asm-um/shmbuf.h b/include/asm-um/shmbuf.h
new file mode 100644
index 000000000000..9684d4a284a6
--- /dev/null
+++ b/include/asm-um/shmbuf.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SHMBUF_H
+#define __UM_SHMBUF_H
+
+#include "asm/arch/shmbuf.h"
+
+#endif
diff --git a/include/asm-um/shmparam.h b/include/asm-um/shmparam.h
new file mode 100644
index 000000000000..124c00174f6a
--- /dev/null
+++ b/include/asm-um/shmparam.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SHMPARAM_H
+#define __UM_SHMPARAM_H
+
+#include "asm/arch/shmparam.h"
+
+#endif
diff --git a/include/asm-um/sigcontext-generic.h b/include/asm-um/sigcontext-generic.h
new file mode 100644
index 000000000000..164587014c61
--- /dev/null
+++ b/include/asm-um/sigcontext-generic.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SIGCONTEXT_GENERIC_H
+#define __UM_SIGCONTEXT_GENERIC_H
+
+#include "asm/arch/sigcontext.h"
+
+#endif
diff --git a/include/asm-um/sigcontext-i386.h b/include/asm-um/sigcontext-i386.h
new file mode 100644
index 000000000000..b88333f488bb
--- /dev/null
+++ b/include/asm-um/sigcontext-i386.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SIGCONTEXT_I386_H
+#define __UM_SIGCONTEXT_I386_H
+
+#include "asm/sigcontext-generic.h"
+
+#endif
diff --git a/include/asm-um/sigcontext-ppc.h b/include/asm-um/sigcontext-ppc.h
new file mode 100644
index 000000000000..2467f20eda99
--- /dev/null
+++ b/include/asm-um/sigcontext-ppc.h
@@ -0,0 +1,10 @@
+#ifndef __UM_SIGCONTEXT_PPC_H
+#define __UM_SIGCONTEXT_PPC_H
+
+#define pt_regs sys_pt_regs
+
+#include "asm/sigcontext-generic.h"
+
+#undef pt_regs
+
+#endif
diff --git a/include/asm-um/sigcontext-x86_64.h b/include/asm-um/sigcontext-x86_64.h
new file mode 100644
index 000000000000..b600e0b01e48
--- /dev/null
+++ b/include/asm-um/sigcontext-x86_64.h
@@ -0,0 +1,22 @@
+/* Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_SIGCONTEXT_X86_64_H
+#define __UM_SIGCONTEXT_X86_64_H
+
+#include "asm/sigcontext-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/siginfo.h b/include/asm-um/siginfo.h
new file mode 100644
index 000000000000..bec6124c36d0
--- /dev/null
+++ b/include/asm-um/siginfo.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SIGINFO_H
+#define __UM_SIGINFO_H
+
+#include "asm/arch/siginfo.h"
+
+#endif
diff --git a/include/asm-um/signal.h b/include/asm-um/signal.h
new file mode 100644
index 000000000000..52ed92cbce4c
--- /dev/null
+++ b/include/asm-um/signal.h
@@ -0,0 +1,29 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_SIGNAL_H
+#define __UM_SIGNAL_H
+
+/* Need to kill the do_signal() declaration in the i386 signal.h */
+
+#define do_signal do_signal_renamed
+#include "asm/arch/signal.h"
+#undef do_signal
+#undef ptrace_signal_deliver
+
+#define ptrace_signal_deliver(regs, cookie) do {} while(0)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/smp.h b/include/asm-um/smp.h
new file mode 100644
index 000000000000..4412d5d9c26b
--- /dev/null
+++ b/include/asm-um/smp.h
@@ -0,0 +1,27 @@
+#ifndef __UM_SMP_H
+#define __UM_SMP_H
+
+#ifdef CONFIG_SMP
+
+#include "linux/config.h"
+#include "linux/bitops.h"
+#include "asm/current.h"
+#include "linux/cpumask.h"
+
+#define smp_processor_id() (current_thread->cpu)
+#define cpu_logical_map(n) (n)
+#define cpu_number_map(n) (n)
+#define PROC_CHANGE_PENALTY     15 /* Pick a number, any number */
+extern int hard_smp_processor_id(void);
+#define NO_PROC_ID -1
+
+extern int ncpus;
+
+
+extern inline void smp_cpus_done(unsigned int maxcpus)
+{
+}
+
+#endif
+
+#endif
diff --git a/include/asm-um/socket.h b/include/asm-um/socket.h
new file mode 100644
index 000000000000..67886e42ef04
--- /dev/null
+++ b/include/asm-um/socket.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SOCKET_H
+#define __UM_SOCKET_H
+
+#include "asm/arch/socket.h"
+
+#endif
diff --git a/include/asm-um/sockios.h b/include/asm-um/sockios.h
new file mode 100644
index 000000000000..93ee1c55c4d6
--- /dev/null
+++ b/include/asm-um/sockios.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SOCKIOS_H
+#define __UM_SOCKIOS_H
+
+#include "asm/arch/sockios.h"
+
+#endif
diff --git a/include/asm-um/spinlock.h b/include/asm-um/spinlock.h
new file mode 100644
index 000000000000..f18c82886992
--- /dev/null
+++ b/include/asm-um/spinlock.h
@@ -0,0 +1,6 @@
+#ifndef __UM_SPINLOCK_H
+#define __UM_SPINLOCK_H
+
+#include "asm/arch/spinlock.h"
+
+#endif
diff --git a/include/asm-um/stat.h b/include/asm-um/stat.h
new file mode 100644
index 000000000000..83ed85ad2539
--- /dev/null
+++ b/include/asm-um/stat.h
@@ -0,0 +1,6 @@
+#ifndef __UM_STAT_H
+#define __UM_STAT_H
+
+#include "asm/arch/stat.h"
+
+#endif
diff --git a/include/asm-um/statfs.h b/include/asm-um/statfs.h
new file mode 100644
index 000000000000..ba6fb53e7f87
--- /dev/null
+++ b/include/asm-um/statfs.h
@@ -0,0 +1,6 @@
+#ifndef _UM_STATFS_H
+#define _UM_STATFS_H
+
+#include "asm/arch/statfs.h"
+
+#endif
diff --git a/include/asm-um/string.h b/include/asm-um/string.h
new file mode 100644
index 000000000000..9a0571f6dd61
--- /dev/null
+++ b/include/asm-um/string.h
@@ -0,0 +1,7 @@
+#ifndef __UM_STRING_H
+#define __UM_STRING_H
+
+#include "asm/arch/string.h"
+#include "asm/archparam.h"
+
+#endif
diff --git a/include/asm-um/suspend.h b/include/asm-um/suspend.h
new file mode 100644
index 000000000000..f4e8e007f468
--- /dev/null
+++ b/include/asm-um/suspend.h
@@ -0,0 +1,4 @@
+#ifndef __UM_SUSPEND_H
+#define __UM_SUSPEND_H
+
+#endif
diff --git a/include/asm-um/system-generic.h b/include/asm-um/system-generic.h
new file mode 100644
index 000000000000..5bcfa35e7a22
--- /dev/null
+++ b/include/asm-um/system-generic.h
@@ -0,0 +1,47 @@
+#ifndef __UM_SYSTEM_GENERIC_H
+#define __UM_SYSTEM_GENERIC_H
+
+#include "asm/arch/system.h"
+
+#undef switch_to
+#undef local_irq_save
+#undef local_irq_restore
+#undef local_irq_disable
+#undef local_irq_enable
+#undef local_save_flags
+#undef local_irq_restore
+#undef local_irq_enable
+#undef local_irq_disable
+#undef local_irq_save
+#undef irqs_disabled
+
+extern void *switch_to(void *prev, void *next, void *last);
+
+extern int get_signals(void);
+extern int set_signals(int enable);
+extern int get_signals(void);
+extern void block_signals(void);
+extern void unblock_signals(void);
+
+#define local_save_flags(flags) do { typecheck(unsigned long, flags); \
+                                     (flags) = get_signals(); } while(0)
+#define local_irq_restore(flags) do { typecheck(unsigned long, flags); \
+                                      set_signals(flags); } while(0)
+
+#define local_irq_save(flags) do { local_save_flags(flags); \
+                                   local_irq_disable(); } while(0)
+
+#define local_irq_enable() unblock_signals()
+#define local_irq_disable() block_signals()
+
+#define irqs_disabled()                 \
+({                                      \
+        unsigned long flags;            \
+        local_save_flags(flags);        \
+        (flags == 0);                   \
+})
+
+extern void *_switch_to(void *prev, void *next, void *last);
+#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
+
+#endif
diff --git a/include/asm-um/system-i386.h b/include/asm-um/system-i386.h
new file mode 100644
index 000000000000..ea8381de3cc9
--- /dev/null
+++ b/include/asm-um/system-i386.h
@@ -0,0 +1,8 @@
+#ifndef __UM_SYSTEM_I386_H
+#define __UM_SYSTEM_I386_H
+
+#include "asm/system-generic.h"
+    
+#define __HAVE_ARCH_CMPXCHG 1
+
+#endif
diff --git a/include/asm-um/system-ppc.h b/include/asm-um/system-ppc.h
new file mode 100644
index 000000000000..17cde6640bf5
--- /dev/null
+++ b/include/asm-um/system-ppc.h
@@ -0,0 +1,12 @@
+#ifndef __UM_SYSTEM_PPC_H
+#define __UM_SYSTEM_PPC_H
+
+#define _switch_to _ppc_switch_to
+
+#include "asm/arch/system.h"
+
+#undef _switch_to
+ 
+#include "asm/system-generic.h"
+
+#endif
diff --git a/include/asm-um/system-x86_64.h b/include/asm-um/system-x86_64.h
new file mode 100644
index 000000000000..e1b61b580734
--- /dev/null
+++ b/include/asm-um/system-x86_64.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_SYSTEM_X86_64_H
+#define __UM_SYSTEM_X86_64_H
+
+#include "asm/system-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/termbits.h b/include/asm-um/termbits.h
new file mode 100644
index 000000000000..5739c608a2cb
--- /dev/null
+++ b/include/asm-um/termbits.h
@@ -0,0 +1,6 @@
+#ifndef __UM_TERMBITS_H
+#define __UM_TERMBITS_H
+
+#include "asm/arch/termbits.h"
+
+#endif
diff --git a/include/asm-um/termios.h b/include/asm-um/termios.h
new file mode 100644
index 000000000000..d9f97b303311
--- /dev/null
+++ b/include/asm-um/termios.h
@@ -0,0 +1,6 @@
+#ifndef __UM_TERMIOS_H
+#define __UM_TERMIOS_H
+
+#include "asm/arch/termios.h"
+
+#endif
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
new file mode 100644
index 000000000000..bffb577bc54e
--- /dev/null
+++ b/include/asm-um/thread_info.h
@@ -0,0 +1,93 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_THREAD_INFO_H
+#define __UM_THREAD_INFO_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/types.h>
+
+struct thread_info {
+        struct task_struct      *task;          /* main task structure */
+        struct exec_domain      *exec_domain;   /* execution domain */
+        unsigned long           flags;          /* low level flags */
+        __u32                   cpu;            /* current CPU */
+        __s32                   preempt_count;  /* 0 => preemptable, 
+                                                   <0 => BUG */
+        mm_segment_t            addr_limit;     /* thread address space:
+                                                   0-0xBFFFFFFF for user
+                                                   0-0xFFFFFFFF for kernel */
+        struct restart_block    restart_block;
+};
+
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        task:           &tsk,                   \
+        exec_domain:    &default_exec_domain,   \
+        flags:          0,                      \
+        cpu:            0,                      \
+        preempt_count:  1,                      \
+        addr_limit:     KERNEL_DS,              \
+        restart_block:  {                       \
+                fn:  do_no_restart_syscall,     \
+        },                                      \
+}
+
+#define init_thread_info        (init_thread_union.thread_info)
+#define init_stack              (init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+        struct thread_info *ti;
+        unsigned long mask = PAGE_SIZE *
+                (1 << CONFIG_KERNEL_STACK_ORDER) - 1;
+        ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
+        return ti;
+}
+
+/* thread information allocation */
+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
+#define alloc_thread_info(tsk) \
+        ((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL))
+#define free_thread_info(ti) kfree(ti)
+
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#endif
+
+#define PREEMPT_ACTIVE          0x4000000
+
+#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
+#define TIF_SIGPENDING          1       /* signal pending */
+#define TIF_NEED_RESCHED        2       /* rescheduling necessary */
+#define TIF_POLLING_NRFLAG      3       /* true if poll_idle() is polling 
+                                         * TIF_NEED_RESCHED 
+                                         */
+#define TIF_RESTART_BLOCK       4
+#define TIF_MEMDIE              5
+
+#define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
+#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
+#define _TIF_RESTART_BLOCK      (1 << TIF_RESTART_BLOCK)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/timex.h b/include/asm-um/timex.h
new file mode 100644
index 000000000000..0f4ada08f748
--- /dev/null
+++ b/include/asm-um/timex.h
@@ -0,0 +1,13 @@
+#ifndef __UM_TIMEX_H
+#define __UM_TIMEX_H
+
+typedef unsigned long cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+        return 0;
+}
+
+#define CLOCK_TICK_RATE (HZ)
+
+#endif
diff --git a/include/asm-um/tlb.h b/include/asm-um/tlb.h
new file mode 100644
index 000000000000..c640033bc1fd
--- /dev/null
+++ b/include/asm-um/tlb.h
@@ -0,0 +1,6 @@
+#ifndef __UM_TLB_H
+#define __UM_TLB_H
+
+#include <asm/arch/tlb.h>
+
+#endif
diff --git a/include/asm-um/tlbflush.h b/include/asm-um/tlbflush.h
new file mode 100644
index 000000000000..522aa30f7eaa
--- /dev/null
+++ b/include/asm-um/tlbflush.h
@@ -0,0 +1,48 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_TLBFLUSH_H
+#define __UM_TLBFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes TLBs
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_kernel_vm() flushes the kernel vm area
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ */
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *mm);
+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 
+                            unsigned long end);
+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
+extern void flush_tlb_kernel_vm(void);
+extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+extern void __flush_tlb_one(unsigned long addr);
+
+static inline void flush_tlb_pgtables(struct mm_struct *mm,
+                                      unsigned long start, unsigned long end)
+{
+}
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/topology.h b/include/asm-um/topology.h
new file mode 100644
index 000000000000..0905e4f21d42
--- /dev/null
+++ b/include/asm-um/topology.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_TOPOLOGY_H
+#define _ASM_UM_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif
diff --git a/include/asm-um/types.h b/include/asm-um/types.h
new file mode 100644
index 000000000000..816e9590fc73
--- /dev/null
+++ b/include/asm-um/types.h
@@ -0,0 +1,6 @@
+#ifndef __UM_TYPES_H
+#define __UM_TYPES_H
+
+#include "asm/arch/types.h"
+
+#endif
diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h
new file mode 100644
index 000000000000..801710d00a40
--- /dev/null
+++ b/include/asm-um/uaccess.h
@@ -0,0 +1,102 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_UACCESS_H
+#define __UM_UACCESS_H
+
+#include "linux/sched.h"
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ */
+
+#define MAKE_MM_SEG(s)  ((mm_segment_t) { (s) })
+
+#define KERNEL_DS       MAKE_MM_SEG(0xFFFFFFFF)
+#define USER_DS         MAKE_MM_SEG(TASK_SIZE)
+
+#define get_ds()        (KERNEL_DS)
+#define get_fs()        (current_thread_info()->addr_limit)
+#define set_fs(x)       (current_thread_info()->addr_limit = (x))
+
+#define segment_eq(a, b) ((a).seg == (b).seg)
+
+#include "um_uaccess.h"
+
+#define __copy_from_user(to, from, n) copy_from_user(to, from, n)
+
+#define __copy_to_user(to, from, n) copy_to_user(to, from, n)
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+#define __get_user(x, ptr) \
+({ \
+        const __typeof__(ptr) __private_ptr = ptr; \
+        __typeof__(*(__private_ptr)) __private_val; \
+        int __private_ret = -EFAULT; \
+        (x) = 0; \
+        if (__copy_from_user(&__private_val, (__private_ptr), \
+            sizeof(*(__private_ptr))) == 0) {\
+                (x) = (__typeof__(*(__private_ptr))) __private_val; \
+                __private_ret = 0; \
+        } \
+        __private_ret; \
+}) 
+
+#define get_user(x, ptr) \
+({ \
+        const __typeof__((*(ptr))) __user *private_ptr = (ptr); \
+        (access_ok(VERIFY_READ, private_ptr, sizeof(*private_ptr)) ? \
+         __get_user(x, private_ptr) : ((x) = 0, -EFAULT)); \
+})
+
+#define __put_user(x, ptr) \
+({ \
+        __typeof__(ptr) __private_ptr = ptr; \
+        __typeof__(*(__private_ptr)) __private_val; \
+        int __private_ret = -EFAULT; \
+        __private_val = (__typeof__(*(__private_ptr))) (x); \
+        if (__copy_to_user((__private_ptr), &__private_val, \
+                           sizeof(*(__private_ptr))) == 0) { \
+                __private_ret = 0; \
+        } \
+        __private_ret; \
+})
+
+#define put_user(x, ptr) \
+({ \
+        __typeof__(*(ptr)) __user *private_ptr = (ptr); \
+        (access_ok(VERIFY_WRITE, private_ptr, sizeof(*private_ptr)) ? \
+         __put_user(x, private_ptr) : -EFAULT); \
+})
+
+#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
+
+struct exception_table_entry
+{
+        unsigned long insn;
+        unsigned long fixup;
+};
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/include/asm-um/ucontext.h b/include/asm-um/ucontext.h
new file mode 100644
index 000000000000..5c96c0e607f0
--- /dev/null
+++ b/include/asm-um/ucontext.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_UCONTEXT_H
+#define _ASM_UM_UCONTEXT_H
+
+#include "asm/arch/ucontext.h"
+
+#endif
diff --git a/include/asm-um/unaligned.h b/include/asm-um/unaligned.h
new file mode 100644
index 000000000000..1d2497c57274
--- /dev/null
+++ b/include/asm-um/unaligned.h
@@ -0,0 +1,6 @@
+#ifndef __UM_UNALIGNED_H
+#define __UM_UNALIGNED_H
+
+#include "asm/arch/unaligned.h"
+
+#endif
diff --git a/include/asm-um/unistd.h b/include/asm-um/unistd.h
new file mode 100644
index 000000000000..6fdde45cc053
--- /dev/null
+++ b/include/asm-um/unistd.h
@@ -0,0 +1,69 @@
+/* 
+ * Copyright (C) 2000 - 2004  Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef _UM_UNISTD_H_
+#define _UM_UNISTD_H_
+
+#include <linux/syscalls.h>
+#include "linux/resource.h"
+#include "asm/uaccess.h"
+
+extern int um_execve(const char *file, char *const argv[], char *const env[]);
+
+#ifdef __KERNEL__
+/* We get __ARCH_WANT_OLD_STAT and __ARCH_WANT_STAT64 from the base arch */
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#endif
+
+#ifdef __KERNEL_SYSCALLS__
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+static inline int execve(const char *filename, char *const argv[],
+                         char *const envp[])
+{
+        mm_segment_t fs;
+        int ret;
+
+        fs = get_fs();
+        set_fs(KERNEL_DS);
+        ret = um_execve(filename, argv, envp);
+        set_fs(fs);
+
+        if (ret >= 0)
+                return ret;
+
+        errno = -(long)ret;
+        return -1;
+}
+
+int sys_execve(char *file, char **argv, char **env);
+
+#endif /* __KERNEL_SYSCALLS__ */
+
+#undef __KERNEL_SYSCALLS__
+#include "asm/arch/unistd.h"
+
+#endif /* _UM_UNISTD_H_*/
diff --git a/include/asm-um/user.h b/include/asm-um/user.h
new file mode 100644
index 000000000000..aae414ee1f5e
--- /dev/null
+++ b/include/asm-um/user.h
@@ -0,0 +1,6 @@
+#ifndef __UM_USER_H
+#define __UM_USER_H
+
+#include "asm/arch/user.h"
+
+#endif
diff --git a/include/asm-um/vga.h b/include/asm-um/vga.h
new file mode 100644
index 000000000000..903a592b00d0
--- /dev/null
+++ b/include/asm-um/vga.h
@@ -0,0 +1,6 @@
+#ifndef __UM_VGA_H
+#define __UM_VGA_H
+
+#include "asm/arch/vga.h"
+
+#endif
diff --git a/include/asm-um/vm-flags-i386.h b/include/asm-um/vm-flags-i386.h
new file mode 100644
index 000000000000..e0d24c568dbc
--- /dev/null
+++ b/include/asm-um/vm-flags-i386.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __VM_FLAGS_I386_H
+#define __VM_FLAGS_I386_H
+
+#define VM_DATA_DEFAULT_FLAGS \
+        (VM_READ | VM_WRITE | \
+        ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
+                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif
diff --git a/include/asm-um/vm-flags-x86_64.h b/include/asm-um/vm-flags-x86_64.h
new file mode 100644
index 000000000000..3213edfa7888
--- /dev/null
+++ b/include/asm-um/vm-flags-x86_64.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
+ * Copyright 2003 PathScale, Inc.
+ * Licensed under the GPL
+ */
+
+#ifndef __VM_FLAGS_X86_64_H
+#define __VM_FLAGS_X86_64_H
+
+#define __VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
+                                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define __VM_STACK_FLAGS        (VM_GROWSDOWN | VM_READ | VM_WRITE | \
+                                 VM_EXEC | VM_MAYREAD | VM_MAYWRITE | \
+                                 VM_MAYEXEC)
+
+extern unsigned long vm_stack_flags, vm_stack_flags32;
+extern unsigned long vm_data_default_flags, vm_data_default_flags32;
+extern unsigned long vm_force_exec32;
+
+#ifdef TIF_IA32
+#define VM_DATA_DEFAULT_FLAGS \
+        (test_thread_flag(TIF_IA32) ? vm_data_default_flags32 : \
+          vm_data_default_flags)
+
+#define VM_STACK_DEFAULT_FLAGS \
+        (test_thread_flag(TIF_IA32) ? vm_stack_flags32 : vm_stack_flags)
+#endif
+
+#define VM_DATA_DEFAULT_FLAGS vm_data_default_flags
+
+#define VM_STACK_DEFAULT_FLAGS vm_stack_flags
+
+#endif
diff --git a/include/asm-um/xor.h b/include/asm-um/xor.h
new file mode 100644
index 000000000000..a19db3e17241
--- /dev/null
+++ b/include/asm-um/xor.h
@@ -0,0 +1,6 @@
+#ifndef __UM_XOR_H
+#define __UM_XOR_H
+
+#include "asm-generic/xor.h"
+
+#endif