7 files changed, 54 insertions, 18 deletions

diff --git a/include/asm-um/a.out-core.h b/include/asm-um/a.out-core.h
new file mode 100644
index 000000000000..995643b18309
--- /dev/null
+++ b/include/asm-um/a.out-core.h
@@ -0,0 +1,27 @@
+/* a.out coredump register dumper
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef __UM_A_OUT_CORE_H
+#define __UM_A_OUT_CORE_H
+
+#ifdef __KERNEL__
+
+#include <linux/user.h>
+
+/*
+ * fill in the user structure for an a.out core dump
+ */
+static inline void aout_dump_thread(struct pt_regs *regs, struct user *u)
+{
+}
+
+#endif /* __KERNEL__ */
+#endif /* __UM_A_OUT_CORE_H */
diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h
index f42ff14577fa..754181ee8683 100644
--- a/include/asm-um/a.out.h
+++ b/include/asm-um/a.out.h
@@ -8,15 +8,4 @@
 
 #include "asm/arch/a.out.h"
 
-#undef STACK_TOP
-#undef STACK_TOP_MAX
-
-extern unsigned long stacksizelim;
-
-#define STACK_ROOM (stacksizelim)
-
-#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
-
-#define STACK_TOP_MAX STACK_TOP
-
 #endif
diff --git a/include/asm-um/fixmap.h b/include/asm-um/fixmap.h
index 89a87c18b927..9d2be52b8655 100644
--- a/include/asm-um/fixmap.h
+++ b/include/asm-um/fixmap.h
@@ -1,6 +1,7 @@
 #ifndef __UM_FIXMAP_H
 #define __UM_FIXMAP_H
 
+#include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/kmap_types.h>
 #include <asm/archparam.h>
@@ -57,7 +58,7 @@ extern void __set_fixmap (enum fixed_addresses idx,
  * at the top of mem..
  */
 
-#define FIXADDR_TOP	(CONFIG_TOP_ADDR - 2 * PAGE_SIZE)
+#define FIXADDR_TOP	(TASK_SIZE - 2 * PAGE_SIZE)
 #define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)
 #define FIXADDR_START	(FIXADDR_TOP - FIXADDR_SIZE)
 
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
index fe2374d705d1..381f96b1c825 100644
--- a/include/asm-um/page.h
+++ b/include/asm-um/page.h
@@ -79,6 +79,8 @@ typedef unsigned long phys_t;
 
 typedef struct { unsigned long pgprot; } pgprot_t;
 
+typedef struct page *pgtable_t;
+
 #define pgd_val(x)	((x).pgd)
 #define pgprot_val(x)	((x).pgprot)
 
diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h
index 4f3e62b02861..9062a6e72241 100644
--- a/include/asm-um/pgalloc.h
+++ b/include/asm-um/pgalloc.h
@@ -18,6 +18,7 @@
 	set_pmd(pmd, __pmd(_PAGE_TABLE +			\
 		((unsigned long long)page_to_pfn(pte) <<	\
 			(unsigned long long) PAGE_SHIFT)))
+#define pmd_pgtable(pmd) pmd_page(pmd)
 
 /*
  * Allocate and free page tables.
@@ -26,19 +27,24 @@ extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, 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);
+extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
 	free_page((unsigned long) pte);
 }
 
-static inline void pte_free(struct mm_struct *mm, struct page *pte)
+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 {
+	pgtable_page_dtor(pte);
 	__free_page(pte);
 }
 
-#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+#define __pte_free_tlb(tlb,pte)				\
+do {							\
+	pgtable_page_dtor(pte);				\
+	tlb_remove_page((tlb),(pte));			\
+} while (0)
 
 #ifdef CONFIG_3_LEVEL_PGTABLES
 
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index b7d9a16a7451..bed668824b5f 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -11,7 +11,6 @@ struct pt_regs;
 struct task_struct;
 
 #include "asm/ptrace.h"
-#include "asm/pgtable.h"
 #include "registers.h"
 #include "sysdep/archsetjmp.h"
 
@@ -92,7 +91,18 @@ static inline void mm_copy_segments(struct mm_struct *from_mm,
 /*
  * User space process size: 3GB (default).
  */
-#define TASK_SIZE (CONFIG_TOP_ADDR & PGDIR_MASK)
+extern unsigned long task_size;
+
+#define TASK_SIZE (task_size)
+
+#undef STACK_TOP
+#undef STACK_TOP_MAX
+
+extern unsigned long stacksizelim;
+
+#define STACK_ROOM	(stacksizelim)
+#define STACK_TOP	(TASK_SIZE - 2 * PAGE_SIZE)
+#define STACK_TOP_MAX	STACK_TOP
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/include/asm-um/processor-x86_64.h b/include/asm-um/processor-x86_64.h
index d946bf2d334a..e50933175e91 100644
--- a/include/asm-um/processor-x86_64.h
+++ b/include/asm-um/processor-x86_64.h
@@ -26,7 +26,7 @@ static inline void rep_nop(void)
 #define cpu_relax()   rep_nop()
 
 #define INIT_ARCH_THREAD { .debugregs  		= { [ 0 ... 7 ] = 0 }, \
-                           .debugregs_seq	= 0,			       \
+			   .debugregs_seq	= 0, \
 			   .fs			= 0, \
 			   .faultinfo		= { 0, 0, 0 } }
 
@@ -37,6 +37,7 @@ static inline void arch_flush_thread(struct arch_thread *thread)
 static inline void arch_copy_thread(struct arch_thread *from,
                                     struct arch_thread *to)
 {
+	to->fs = from->fs;
 }
 
 #include "asm/arch/user.h"