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Message-ID: <20071004191835.GC23211@uranus.ravnborg.org>
Date: Thu, 4 Oct 2007 21:18:35 +0200
From: Sam Ravnborg <sam@...nborg.org>
To: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: [PATCH 2/2] s390: use PAGE_SIZE in vmlinux.lds
Repalce the hardcoded 4096 value with the PAGE_SIZE macro.
Converted a few decimal numbers to readable hex numbers.
Use of PAGE_SIZE required a small change to page.h
to allow PAGE_SIZE to be used from assembler/linker scripts.
Signed-off-by: Sam Ravnborg <sam@...nborg.org>
---
build tested only
arch/s390/kernel/vmlinux.lds.S | 27 ++++++++++++++-------------
include/asm-s390/page.h | 3 ++-
2 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 3a364d1..dd3b310 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -2,6 +2,7 @@
* Written by Martin Schwidefsky (schwidefsky@...ibm.com)
*/
+#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#ifndef CONFIG_64BIT
@@ -35,10 +36,10 @@ SECTIONS
RODATA
#ifdef CONFIG_SHARED_KERNEL
- . = ALIGN(1048576); /* VM shared segments are 1MB aligned */
+ . = ALIGN(0x100000); /* VM shared segments are 1MB aligned */
#endif
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
_eshared = .; /* End of shareable data */
. = ALIGN(16); /* Exception table */
@@ -56,37 +57,37 @@ SECTIONS
CONSTRUCTORS
}
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
.data_nosave : {
__nosave_begin = .;
*(.data.nosave)
}
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
__nosave_end = .;
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
.data.page_aligned : {
*(.data.idt)
}
- . = ALIGN(256);
+ . = ALIGN(0x100);
.data.cacheline_aligned : {
*(.data.cacheline_aligned)
}
- . = ALIGN(256);
+ . = ALIGN(0x100);
.data.read_mostly : {
*(.data.read_mostly)
}
_edata = .; /* End of data section */
- . = ALIGN(8192); /* init_task */
+ . = ALIGN(2 * PAGE_SIZE); /* init_task */
.data.init_task : {
*(.data.init_task)
}
/* will be freed after init */
- . = ALIGN(4096); /* Init code and data */
+ . = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
@@ -104,7 +105,7 @@ SECTIONS
.init.data : {
*(.init.data)
}
- . = ALIGN(256);
+ . = ALIGN(0x100);
.init.setup : {
__setup_start = .;
*(.init.setup)
@@ -124,7 +125,7 @@ SECTIONS
SECURITY_INIT
#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(256);
+ . = ALIGN(0x100);
.init.ramfs : {
__initramfs_start = .;
*(.init.initramfs)
@@ -133,8 +134,8 @@ SECTIONS
}
#endif
- PERCPU(4096)
- . = ALIGN(4096);
+ PERCPU(PAGE_SIZE)
+ . = ALIGN(PAGE_SIZE);
__init_end = .; /* freed after init ends here */
/* BSS */
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index f326451..e3ce489 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -9,11 +9,12 @@
#ifndef _S390_PAGE_H
#define _S390_PAGE_H
+#include <linux/const.h>
#include <asm/types.h>
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_DEFAULT_ACC 0
#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)
-
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