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Date: Thu, 17 Jan 2008 13:41:50 -0800
From: Venki Pallipadi <venkatesh.pallipadi@...el.com>
To: Jeff Dike <jdike@...toit.com>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Mariusz Kozlowski <m.kozlowski@...land.pl>,
WANG Cong <xiyou.wangcong@...il.com>,
linux-kernel@...r.kernel.org,
user-mode-linux-devel@...ts.sourceforge.net,
David Miller <davem@...emloft.net>, sparclinux@...r.kernel.org,
Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [-mm Patch] uml: fix a building error
On Thu, Jan 17, 2008 at 04:14:37PM -0500, Jeff Dike wrote:
> On Thu, Jan 17, 2008 at 11:38:53AM -0800, Pallipadi, Venkatesh wrote:
> > Apart from unxlate, there is also ioremap_wc which is defined in the
> > same way.
>
> And while we're on the subject, what's the deal with these, in
> include/asm-x86/io.h?
>
> #define ioremap_wc ioremap_wc
> #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
>
If archs want to override the defaults for these two functions, they define
the above and then include asm-generic/iomap.h.
Archs which doesnt want to implement anything in these new funcs just have to
include asm-generic/iomap.h which has the proper stubs.
So, a patch like the below is what is required here for all archs to
include asm-generic iomap.h (without the other patch that
defines null unxlate in asm specific header).
Totally untested.
Thanks,
Venki
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Index: linux-2.6.git/include/asm-arm/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-arm/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-arm/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -27,6 +27,8 @@
#include <asm/byteorder.h>
#include <asm/memory.h>
+#include <asm-generic/iomap.h>
+
/*
* ISA I/O bus memory addresses are 1:1 with the physical address.
*/
Index: linux-2.6.git/include/asm-avr32/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-avr32/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-avr32/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -10,6 +10,8 @@
#include <asm/arch/io.h>
+#include <asm-generic/iomap.h>
+
/* virt_to_phys will only work when address is in P1 or P2 */
static __inline__ unsigned long virt_to_phys(volatile void *address)
{
Index: linux-2.6.git/include/asm-blackfin/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-blackfin/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-blackfin/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -8,6 +8,8 @@
#endif
#include <linux/compiler.h>
+#include <asm-generic/iomap.h>
+
/*
* These are for ISA/PCI shared memory _only_ and should never be used
* on any other type of memory, including Zorro memory. They are meant to
Index: linux-2.6.git/include/asm-cris/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-cris/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-cris/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -5,6 +5,8 @@
#include <asm/arch/io.h>
#include <linux/kernel.h>
+#include <asm-generic/iomap.h>
+
struct cris_io_operations
{
u32 (*read_mem)(void *addr, int size);
Index: linux-2.6.git/include/asm-frv/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-frv/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-frv/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -23,6 +23,8 @@
#include <asm/mb-regs.h>
#include <linux/delay.h>
+#include <asm-generic/iomap.h>
+
/*
* swap functions are sometimes needed to interface little-endian hardware
*/
Index: linux-2.6.git/include/asm-h8300/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-h8300/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-h8300/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -13,6 +13,8 @@
#error UNKNOWN CPU TYPE
#endif
+#include <asm-generic/iomap.h>
+
/*
* These are for ISA/PCI shared memory _only_ and should never be used
Index: linux-2.6.git/include/asm-m32r/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-m32r/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-m32r/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -5,6 +5,8 @@
#include <linux/compiler.h>
#include <asm/page.h> /* __va */
+#include <asm-generic/iomap.h>
+
#ifdef __KERNEL__
#define IO_SPACE_LIMIT 0xFFFFFFFF
Index: linux-2.6.git/include/asm-m68knommu/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-m68knommu/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-m68knommu/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -1,6 +1,8 @@
#ifndef _M68KNOMMU_IO_H
#define _M68KNOMMU_IO_H
+#include <asm-generic/iomap.h>
+
#ifdef __KERNEL__
Index: linux-2.6.git/include/asm-ppc/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-ppc/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-ppc/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -10,6 +10,8 @@
#include <asm/synch.h>
#include <asm/mmu.h>
+#include <asm-generic/iomap.h>
+
#define SIO_CONFIG_RA 0x398
#define SIO_CONFIG_RD 0x399
Index: linux-2.6.git/include/asm-s390/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-s390/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-s390/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -15,6 +15,8 @@
#include <asm/page.h>
+#include <asm-generic/iomap.h>
+
#define IO_SPACE_LIMIT 0xffffffff
/*
Index: linux-2.6.git/include/asm-sparc/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-sparc/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-sparc/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -11,6 +11,8 @@
#include <asm/page.h> /* IO address mapping routines need this */
#include <asm/system.h>
+#include <asm-generic/iomap.h>
+
#define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT)
static inline u32 flip_dword (u32 l)
Index: linux-2.6.git/include/asm-sparc64/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-sparc64/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-sparc64/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -9,6 +9,8 @@
#include <asm/system.h>
#include <asm/asi.h>
+#include <asm-generic/iomap.h>
+
/* PC crapola... */
#define __SLOW_DOWN_IO do { } while (0)
#define SLOW_DOWN_IO do { } while (0)
Index: linux-2.6.git/include/asm-um/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-um/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-um/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -3,6 +3,8 @@
#include "asm/page.h"
+#include <asm-generic/iomap.h>
+
#define IO_SPACE_LIMIT 0xdeadbeef /* Sure hope nothing uses this */
static inline int inb(unsigned long i) { return(0); }
Index: linux-2.6.git/include/asm-v850/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-v850/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-v850/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -14,6 +14,8 @@
#ifndef __V850_IO_H__
#define __V850_IO_H__
+#include <asm-generic/iomap.h>
+
#define IO_SPACE_LIMIT 0xFFFFFFFF
#define readb(addr) \
Index: linux-2.6.git/include/asm-xtensa/io.h
===================================================================
--- linux-2.6.git.orig/include/asm-xtensa/io.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-xtensa/io.h 2008-01-17 06:39:13.000000000 -0800
@@ -18,6 +18,8 @@
#include <linux/types.h>
+#include <asm-generic/iomap.h>
+
#define XCHAL_KIO_CACHED_VADDR 0xf0000000
#define XCHAL_KIO_BYPASS_VADDR 0xf8000000
#define XCHAL_KIO_PADDR 0xf0000000
Index: linux-2.6.git/include/asm-generic/iomap.h
===================================================================
--- linux-2.6.git.orig/include/asm-generic/iomap.h 2008-01-17 06:28:06.000000000 -0800
+++ linux-2.6.git/include/asm-generic/iomap.h 2008-01-17 06:39:39.000000000 -0800
@@ -2,6 +2,7 @@
#define __GENERIC_IO_H
#include <linux/linkage.h>
+#include <linux/compiler.h>
#include <asm/byteorder.h>
/*
--
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