Re: [PATCH] fix ppc ioremap prototype

From: Christoph Hellwig
Date: Thu Sep 04 2003 - 04:31:23 EST

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In reply to: Christoph Hellwig: "Re: [PATCH] fix ppc ioremap prototype"
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On Thu, Sep 04, 2003 at 01:09:40AM -0700, David S. Miller wrote:
> On Thu, 4 Sep 2003 09:38:45 +0200
> Christoph Hellwig <hch@xxxxxx> wrote:
>
> > Umm, right, so the typedef name is also completly bogus, if we're
> > going to go that route it needs to be something likeb iocookie_t.
>
> My suggestion is to just pass a resource and an offset to ioremap().

Here's a ioremap_resource implementation. Tested on ppc32 with a
converted sungem driver.

--- 1.13/arch/ppc/mm/pgtable.c Wed Sep 3 14:16:34 2003
+++ edited/arch/ppc/mm/pgtable.c Thu Sep 4 10:53:17 2003
@@ -27,6 +27,7 @@
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/highmem.h>
+#include <linux/ioport.h>

#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -62,6 +63,10 @@
#define PGDIR_ORDER 0
#endif

+#ifndef CONFIG_44x
+#define fixup_bigphys_addr(addr, size) (addr)
+#endif
+
pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *ret;
@@ -117,27 +122,18 @@
__free_page(pte);
}

-#ifndef CONFIG_44x
void *
-ioremap(phys_addr_t addr, unsigned long size)
+ioremap_resource(struct resource *res, unsigned long offset, unsigned long size)
{
- return __ioremap(addr, size, _PAGE_NO_CACHE);
-}
-#else /* CONFIG_44x */
-void *
-ioremap64(unsigned long long addr, unsigned long size)
-{
- return __ioremap(addr, size, _PAGE_NO_CACHE);
+ return __ioremap(res->start + offset, size, _PAGE_NO_CACHE);
}

void *
-ioremap(phys_addr_t addr, unsigned long size)
+ioremap(unsigned long addr, unsigned long size)
{
phys_addr_t addr64 = fixup_bigphys_addr(addr, size);;
-
- return ioremap64(addr64, size);
+ return __ioremap(addr64, size, _PAGE_NO_CACHE);
}
-#endif /* CONFIG_44x */

void *
__ioremap(phys_addr_t addr, unsigned long size, unsigned long flags)
--- 1.14/include/asm-alpha/io.h Mon Feb 17 09:27:53 2003
+++ edited/include/asm-alpha/io.h Thu Sep 4 10:40:25 2003
@@ -325,6 +325,7 @@
{
return (void *) __ioremap(offset, size);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

static inline void iounmap(void *addr)
{
===== include/asm-arm/io.h 1.15 vs edited =====
--- 1.15/include/asm-arm/io.h Sat Jan 25 19:32:47 2003
+++ edited/include/asm-arm/io.h Thu Sep 4 10:40:34 2003
@@ -274,6 +274,7 @@
#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0,1)
#define iounmap(cookie) __arch_iounmap(cookie)
#endif
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

/*
* can the hardware map this into one segment or not, given no other
===== include/asm-arm26/io.h 1.1 vs edited =====
--- 1.1/include/asm-arm26/io.h Wed Jun 4 13:14:10 2003
+++ edited/include/asm-arm26/io.h Thu Sep 4 10:40:44 2003
@@ -397,6 +397,7 @@
#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0,1)
#define iounmap(cookie) __arch_iounmap(cookie)
#endif
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

/*
* DMA-consistent mapping functions. These allocate/free a region of
===== include/asm-cris/io.h 1.8 vs edited =====
--- 1.8/include/asm-cris/io.h Fri Jul 4 12:35:55 2003
+++ edited/include/asm-cris/io.h Thu Sep 4 10:40:48 2003
@@ -24,6 +24,7 @@
{
return __ioremap(offset, size, 0);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

extern void iounmap(void *addr);

===== include/asm-h8300/io.h 1.3 vs edited =====
--- 1.3/include/asm-h8300/io.h Thu Aug 21 17:55:15 2003
+++ edited/include/asm-h8300/io.h Thu Sep 4 10:40:55 2003
@@ -165,6 +165,7 @@
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

extern void iounmap(void *addr);

===== include/asm-i386/io.h 1.24 vs edited =====
--- 1.24/include/asm-i386/io.h Mon Mar 24 18:23:37 2003
+++ edited/include/asm-i386/io.h Thu Sep 4 10:41:01 2003
@@ -98,6 +98,7 @@
#define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)

extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+#define ioremap_resource(res, off, size) __ioremap((res)->start + (off), (size), 0)

/**
* ioremap - map bus memory into CPU space
===== include/asm-ia64/io.h 1.17 vs edited =====
--- 1.17/include/asm-ia64/io.h Wed Aug 20 08:13:39 2003
+++ edited/include/asm-ia64/io.h Thu Sep 4 10:35:56 2003
@@ -383,6 +383,7 @@
{
return (void *) (__IA64_UNCACHED_OFFSET | (offset));
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

static inline void
iounmap (void *addr)
===== include/asm-m68k/io.h 1.8 vs edited =====
--- 1.8/include/asm-m68k/io.h Wed Mar 5 14:19:40 2003
+++ edited/include/asm-m68k/io.h Thu Sep 4 10:36:30 2003
@@ -303,6 +303,7 @@
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

/* m68k caches aren't DMA coherent */
===== include/asm-m68knommu/io.h 1.2 vs edited =====
--- 1.2/include/asm-m68knommu/io.h Thu Jul 3 03:18:30 2003
+++ edited/include/asm-m68knommu/io.h Thu Sep 4 10:36:38 2003
@@ -157,6 +157,7 @@
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

extern void iounmap(void *addr);

===== include/asm-mips/io.h 1.5 vs edited =====
--- 1.5/include/asm-mips/io.h Tue Jul 29 03:38:07 2003
+++ edited/include/asm-mips/io.h Thu Sep 4 10:37:17 2003
@@ -190,6 +190,8 @@
*/
#define ioremap(offset, size) \
__ioremap((offset), (size), _CACHE_UNCACHED)
+#define ioremap_resource(res, off, size) \
+ __ioremap((res)->start + (off), (size), _CACHE_UNCACHED)

/*
* ioremap_nocache - map bus memory into CPU space
===== include/asm-parisc/io.h 1.4 vs edited =====
--- 1.4/include/asm-parisc/io.h Sat Jan 11 17:46:56 2003
+++ edited/include/asm-parisc/io.h Thu Sep 4 10:37:12 2003
@@ -26,6 +26,7 @@
/* Memory mapped IO */

extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+#define ioremap_resource(res, off, size) __ioremap((res)->start + (off), (size), 0)

extern inline void * ioremap(unsigned long offset, unsigned long size)
{
===== include/asm-ppc/io.h 1.14 vs edited =====
--- 1.14/include/asm-ppc/io.h Wed Sep 3 14:16:34 2003
+++ edited/include/asm-ppc/io.h Thu Sep 4 10:46:59 2003
@@ -199,12 +199,12 @@
* Map in an area of physical address space, for accessing
* I/O devices etc.
*/
+struct resource;
extern void *__ioremap(phys_addr_t address, unsigned long size,
unsigned long flags);
-extern void *ioremap(phys_addr_t address, unsigned long size);
-#ifdef CONFIG_44x
-extern void *ioremap64(unsigned long long address, unsigned long size);
-#endif
+extern void *ioremap_resource(struct resource *res, unsigned long offset,
+ unsigned long size);
+extern void *ioremap(unsigned long address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
extern void iounmap(void *addr);
extern unsigned long iopa(unsigned long addr);
===== include/asm-ppc64/io.h 1.8 vs edited =====
--- 1.8/include/asm-ppc64/io.h Sun Apr 27 23:32:15 2003
+++ edited/include/asm-ppc64/io.h Thu Sep 4 10:37:44 2003
@@ -118,6 +118,7 @@
unsigned long flags);
extern void *ioremap(unsigned long address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))
extern void iounmap(void *addr);

/*
===== include/asm-s390/io.h 1.6 vs edited =====
--- 1.6/include/asm-s390/io.h Mon Apr 14 21:11:58 2003
+++ edited/include/asm-s390/io.h Thu Sep 4 10:38:00 2003
@@ -53,6 +53,7 @@
#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)

extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+#define ioremap_resource(res, off, size) __ioremap((res)->start + (off), (size), 0)

extern inline void * ioremap (unsigned long offset, unsigned long size)
{
===== include/asm-sh/io.h 1.5 vs edited =====
--- 1.5/include/asm-sh/io.h Sun May 4 17:30:01 2003
+++ edited/include/asm-sh/io.h Thu Sep 4 10:39:18 2003
@@ -72,6 +72,8 @@
# define __ioremap(a,s) sh_mv.mv_ioremap((a), (s))
# define __iounmap(a) sh_mv.mv_iounmap((a))

+# define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))
+
# define __isa_port2addr(a) sh_mv.mv_isa_port2addr(a)

# define inb __inb
@@ -399,6 +401,7 @@
{
return __ioremap(offset, size);
}
+#define ioremap_resource(res, off, size) __ioremap((res)->start + (off), (size))

static __inline__ void iounmap(void *addr)
{
===== include/asm-sparc/io.h 1.5 vs edited =====
--- 1.5/include/asm-sparc/io.h Mon Dec 2 09:23:54 2002
+++ edited/include/asm-sparc/io.h Thu Sep 4 10:39:56 2003
@@ -176,7 +176,8 @@
* This is why we have no bus number argument to ioremap().
*/
extern void *ioremap(unsigned long offset, unsigned long size);
-#define ioremap_nocache(X,Y) ioremap((X),(Y))
+#define ioremap_nocache(X,Y) ioremap((X),(Y))
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))
extern void iounmap(void *addr);

/*
===== include/asm-sparc64/io.h 1.7 vs edited =====
--- 1.7/include/asm-sparc64/io.h Sat Dec 21 03:02:57 2002
+++ edited/include/asm-sparc64/io.h Thu Sep 4 10:40:03 2003
@@ -435,6 +435,7 @@
*/
#define ioremap(__offset, __size) ((void *)(__offset))
#define ioremap_nocache(X,Y) ioremap((X),(Y))
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))
#define iounmap(__addr) do { (void)(__addr); } while(0)

/* Similarly for SBUS. */
===== include/asm-v850/io.h 1.2 vs edited =====
--- 1.2/include/asm-v850/io.h Tue Jun 17 07:23:12 2003
+++ edited/include/asm-v850/io.h Thu Sep 4 10:40:13 2003
@@ -97,6 +97,7 @@
#define ioremap_nocache(physaddr, size) (physaddr)
#define ioremap_writethrough(physaddr, size) (physaddr)
#define ioremap_fullcache(physaddr, size) (physaddr)
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
#if 0
===== include/asm-x86_64/io.h 1.9 vs edited =====
--- 1.9/include/asm-x86_64/io.h Fri Jul 11 13:34:21 2003
+++ edited/include/asm-x86_64/io.h Thu Sep 4 10:40:18 2003
@@ -152,6 +152,7 @@
{
return __ioremap(offset, size, 0);
}
+#define ioremap_resource(res, off, size) ioremap((res)->start + (off), (size))

/*
* This one maps high address device memory and turns off caching for that area.
-
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Next message: Karol Kozimor: "Re: [ACPI] RE: ACPI kernel crash with 2.4.22-pre7 on ASUS L3800C"
Previous message: Nils Faerber: "Re: [ACPI] RE: ACPI kernel crash with 2.4.22-pre7 on ASUS L3800C"
In reply to: Christoph Hellwig: "Re: [PATCH] fix ppc ioremap prototype"
Next in thread: Benjamin Herrenschmidt: "Re: [PATCH] fix ppc ioremap prototype"
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