[ARM] 3060/1: allow constants found in asm/memory.h to be used in asm code

Patch from Nicolas Pitre

This patch allows for assorted type of cleanups by letting assembly code
use the same set of defines for constant values and avoid duplicated
definitions that might not always be in sync, or that might simply be
confusing due to the different names for the same thing.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/asm-offsets.c

@@ -94,7 +94,6 @@ int main(void)
   DEFINE(VM_EXEC,	       	VM_EXEC);
   BLANK();
   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
-  DEFINE(VIRT_OFFSET,		PAGE_OFFSET);
   BLANK();
   DEFINE(SYS_ERROR0,		0x9f0000);
   BLANK();

arch/arm/kernel/entry-armv.S

@@ -15,6 +15,7 @@
  */
 #include <linux/config.h>
 
+#include <asm/memory.h>
 #include <asm/glue.h>
 #include <asm/vfpmacros.h>
 #include <asm/hardware.h>		/* should be moved into entry-macro.S */
@@ -310,7 +311,7 @@ __pabt_svc:
 
 #if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
 	@ make sure our user space atomic helper is aborted
-	cmp	r2, #VIRT_OFFSET
+	cmp	r2, #TASK_SIZE
 	bichs	r3, r3, #PSR_Z_BIT
 #endif
 

arch/arm/kernel/head.S

@@ -21,6 +21,7 @@
 #include <asm/procinfo.h>
 #include <asm/ptrace.h>
 #include <asm/asm-offsets.h>
+#include <asm/memory.h>
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
@@ -76,7 +77,7 @@
 	.equ	swapper_pg_dir, DATAADDR - 0x4000
 
 	.macro	pgtbl, rd, phys
-	ldr	\rd, =((DATAADDR - 0x4000) - VIRT_OFFSET)
+	ldr	\rd, =((DATAADDR - 0x4000) - PAGE_OFFSET)
 	add	\rd, \rd, \phys
 	.endm
 #endif
@@ -324,7 +325,7 @@ __create_page_tables:
 	/*
 	 * Then map first 1MB of ram in case it contains our boot params.
 	 */
-	add	r0, r4, #VIRT_OFFSET >> 18
+	add	r0, r4, #PAGE_OFFSET >> 18
 	orr	r6, r5, r7
 	str	r6, [r0]