From f7fe8781749bf2de2ca03147a1691244a7d93ec7 Mon Sep 17 00:00:00 2001
From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Date: Thu, 5 May 2005 16:15:15 -0700
Subject: [PATCH] [PATCH] uml: obvious compile fixes for x86-64 Subarch and x86
 regression fixes

This patch does some totally trivial compilation fixes.  It also restores the
debugregs manipulation, which was commented out simply because it doesn't
compile on x86_64 (we haven't yet implemented there debugregs handling).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/um/kernel/ptrace.c         | 4 +++-
 arch/um/sys-x86_64/syscalls.c   | 2 ++
 include/asm-um/ipc.h            | 7 +------
 include/asm-um/page.h           | 3 +++
 include/asm-um/pgtable-3level.h | 2 +-
 5 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 959b2d2490df..ffc599bd85c3 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -98,12 +98,14 @@ long sys_ptrace(long request, long pid, long addr, long data)
 		if(addr < MAX_REG_OFFSET){
 			tmp = getreg(child, addr);
 		}
+#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
 		else if((addr >= offsetof(struct user, u_debugreg[0])) &&
 			(addr <= offsetof(struct user, u_debugreg[7]))){
 			addr -= offsetof(struct user, u_debugreg[0]);
 			addr = addr >> 2;
 			tmp = child->thread.arch.debugregs[addr];
 		}
+#endif
 		ret = put_user(tmp, (unsigned long __user *) data);
 		break;
 	}
@@ -127,7 +129,7 @@ long sys_ptrace(long request, long pid, long addr, long data)
 			ret = putreg(child, addr, data);
 			break;
 		}
-#if 0 /* XXX x86_64 */
+#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
 		else if((addr >= offsetof(struct user, u_debugreg[0])) &&
 			(addr <= offsetof(struct user, u_debugreg[7]))){
 			  addr -= offsetof(struct user, u_debugreg[0]);
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index ab4b0abf8af3..2a575ef52bba 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -7,6 +7,8 @@
 #include "linux/linkage.h"
 #include "linux/slab.h"
 #include "linux/shm.h"
+#include "linux/utsname.h"
+#include "linux/personality.h"
 #include "asm/uaccess.h"
 #define __FRAME_OFFSETS
 #include "asm/ptrace.h"
diff --git a/include/asm-um/ipc.h b/include/asm-um/ipc.h
index e2ddc47f3e52..a46e3d9c2a3f 100644
--- a/include/asm-um/ipc.h
+++ b/include/asm-um/ipc.h
@@ -1,6 +1 @@
-#ifndef __UM_IPC_H
-#define __UM_IPC_H
-
-#include "asm/arch/ipc.h"
-
-#endif
+#include <asm-generic/ipc.h>
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
index 102eb3df1aaf..504ea8e486b0 100644
--- a/include/asm-um/page.h
+++ b/include/asm-um/page.h
@@ -45,6 +45,9 @@ typedef struct { unsigned long pgd; } pgd_t;
 	({ (pte).pte_high = (phys) >> 32; \
 	   (pte).pte_low = (phys) | pgprot_val(prot); })
 
+#define pmd_val(x)	((x).pmd)
+#define __pmd(x) ((pmd_t) { (x) } )
+
 typedef unsigned long long pfn_t;
 typedef unsigned long long phys_t;
 
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h
index d309f3a9e6f6..65e8bfc55fc4 100644
--- a/include/asm-um/pgtable-3level.h
+++ b/include/asm-um/pgtable-3level.h
@@ -149,7 +149,7 @@ static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot)
 
 #define pte_to_pgoff(p) ((p).pte >> 32)
 
-#define pgoff_to_pte(off) ((pte_t) { ((off) < 32) | _PAGE_FILE })
+#define pgoff_to_pte(off) ((pte_t) { ((off) << 32) | _PAGE_FILE })
 
 #else