[PATCH 2/3] Add ioremap_cache and ioremap_wc to all architectures

Thomas Schlichter
2011-02-06T11:15:49Z

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>From 194ea8d7dc39c1587d0e38d2571775e73949953b Mon Sep 17 00:00:00 2001
From: Thomas Schlichter <thomas.schlichter@web.de>
Date: Sat, 5 Feb 2011 15:07:41 +0100
Subject: [PATCH 2/3] Add ioremap_cache and ioremap_wc to all architectures

Establish ioremap_cache() and ioremap_wc() to be available besides
ioremap() and ioremap_nocache() on all architectures. This allows
generic drivers to use them without any ifdef-cludge.

Signed-off-by: Thomas Schlichter <thomas.schlichter@web.de>
---
arch/alpha/include/asm/io.h | 3 +++
arch/arm/include/asm/io.h | 2 +-
arch/arm/mm/mmu.c | 2 +-
arch/avr32/include/asm/io.h | 6 ++++++
arch/cris/include/asm/io.h | 3 +++
arch/frv/include/asm/io.h | 1 +
arch/h8300/include/asm/io.h | 3 +++
arch/ia64/include/asm/io.h | 1 +
arch/m32r/include/asm/io.h | 2 ++
arch/m68k/include/asm/io_mm.h | 3 +++
arch/m68k/include/asm/io_no.h | 3 +++
arch/microblaze/include/asm/io.h | 4 ++++
arch/mips/include/asm/io.h | 6 ++++--
arch/mn10300/include/asm/io.h | 1 +
arch/parisc/include/asm/io.h | 2 ++
arch/powerpc/include/asm/io.h | 2 ++
arch/sh/include/asm/io.h | 1 +
arch/sparc/include/asm/io_32.h | 1 +
arch/sparc/include/asm/io_64.h | 1 +
arch/tile/include/asm/io.h | 2 ++
arch/x86/include/asm/io.h | 2 --
arch/xtensa/include/asm/io.h | 3 +++
drivers/mtd/maps/pxa2xx-flash.c | 2 +-
include/asm-generic/io.h | 4 ++++
include/asm-generic/iomap.h | 4 ----
25 files changed, 53 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 56ff965..beb17bc 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -300,6 +300,9 @@ static inline void __iomem * ioremap_nocache(unsigned long offset,
return ioremap(offset, size);
}

+#define ioremap_cache ioremap
+#define ioremap_wc ioremap_nocache
+
static inline void iounmap(volatile void __iomem *addr)
{
IO_CONCAT(__IO_PREFIX,iounmap)(addr);
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d66605d..adb0e46 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -248,7 +248,7 @@ extern void _memset_io(volatile void __iomem *, int, size_t);

#define ioremap(cookie,size) __arch_ioremap((cookie), (size), MT_DEVICE)
#define ioremap_nocache(cookie,size) __arch_ioremap((cookie), (size), MT_DEVICE)
-#define ioremap_cached(cookie,size) __arch_ioremap((cookie), (size), MT_DEVICE_CACHED)
+#define ioremap_cache(cookie,size) __arch_ioremap((cookie), (size), MT_DEVICE_CACHED)
#define ioremap_wc(cookie,size) __arch_ioremap((cookie), (size), MT_DEVICE_WC)
#define iounmap __arch_iounmap

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 3c67e92..d4bf66b 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -208,7 +208,7 @@ static struct mem_type mem_types[] = {
.prot_sect = PROT_SECT_DEVICE,
.domain = DOMAIN_IO,
},
- [MT_DEVICE_CACHED] = { /* ioremap_cached */
+ [MT_DEVICE_CACHED] = { /* ioremap_cache */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_CACHED,
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PROT_SECT_DEVICE | PMD_SECT_WB,
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index 22c97ef..35095c4 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -287,6 +287,12 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_nocache(offset, size) \
__ioremap((offset), (size), 0)

+#define ioremap_cache(offset, size) \
+ __ioremap((offset), (size), 0)
+
+#define ioremap_wc(offset, size) \
+ __ioremap((offset), (size), 0)
+
#define iounmap(addr) \
__iounmap(addr)

diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
index 32567bc..9dad86e 100644
--- a/arch/cris/include/asm/io.h
+++ b/arch/cris/include/asm/io.h
@@ -45,6 +45,9 @@ extern void iounmap(volatile void * __iomem addr);

extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);

+#define ioremap_cache ioremap
+#define ioremap_wc ioremap_nocache
+
/*
* IO bus memory addresses are also 1:1 with the physical address
*/
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index ca7475e..44d0adf 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -271,6 +271,7 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned l
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

+#define ioremap_cache ioremap_fullcache
#define ioremap_wc ioremap_nocache

extern void iounmap(void volatile __iomem *addr);
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
index c1a8df2..f5e6aec 100644
--- a/arch/h8300/include/asm/io.h
+++ b/arch/h8300/include/asm/io.h
@@ -262,6 +262,9 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

+#define ioremap_cache ioremap_fullcache
+#define ioremap_wc ioremap_nocache
+
extern void iounmap(void *addr);

/* H8/300 internal I/O functions */
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index e5a6c35..9f9e156 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -431,6 +431,7 @@ static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned lo
return ioremap(phys_addr, size);
}

+#define ioremap_wc ioremap_nocache

/*
* String version of IO memory access ops:
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 4010f1f..0a4a2a9 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -67,6 +67,8 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)

extern void iounmap(volatile void __iomem *addr);
#define ioremap_nocache(off,size) ioremap(off,size)
+#define ioremap_cache(off,size) ioremap(off,size)
+#define ioremap_wc(off,size) ioremap(off,size)

/*
* IO bus memory addresses are also 1:1 with the physical address
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index 0fb3468..603b973 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -299,6 +299,9 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

+#define ioremap_cache ioremap_fullcache
+#define ioremap_wc ioremap_nocache
+
static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
{
__builtin_memset((void __force *) addr, val, count);
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index cf20f30..ecfead4 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -163,6 +163,9 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}

+#define ioremap_cache ioremap_fullcache
+#define ioremap_wc ioremap_nocache
+
extern void iounmap(void *addr);

/*
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index eae3222..9af2203 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -153,6 +153,8 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_writethrough(addr, size) ioremap((addr), (size))
#define ioremap_nocache(addr, size) ioremap((addr), (size))
#define ioremap_fullcache(addr, size) ioremap((addr), (size))
+#define ioremap_cache(addr, size) ioremap((addr), (size))
+#define ioremap_wc(addr, size) ioremap((addr), (size))

#else /* CONFIG_MMU */

@@ -203,6 +205,8 @@ static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr))
#define iounmap(addr) ((void)0)
#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_cache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_wc(physaddr, size) ioremap(physaddr, size)

#endif /* CONFIG_MMU */

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 5b017f2..51dad4a 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -251,7 +251,7 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
__ioremap_mode((offset), (size), _CACHE_UNCACHED)

/*
- * ioremap_cachable - map bus memory into CPU space
+ * ioremap_cache - map bus memory into CPU space
* @offset: bus address of the memory
* @size: size of the resource to map
*
@@ -265,9 +265,11 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
* the CPU. Also enables full write-combining. Useful for some
* memory-like regions on I/O busses.
*/
-#define ioremap_cachable(offset, size) \
+#define ioremap_cache(offset, size) \
__ioremap_mode((offset), (size), _page_cachable_default)

+#define ioremap_wc ioremap_nocache
+
/*
* These two are MIPS specific ioremap variant. ioremap_cacheable_cow
* requests a cachable mapping, ioremap_uncached_accelerated requests a
diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
index 787255d..1ed75a0 100644
--- a/arch/mn10300/include/asm/io.h
+++ b/arch/mn10300/include/asm/io.h
@@ -272,6 +272,7 @@ static inline void *ioremap_nocache(unsigned long offset, unsigned long size)
return (void *) (offset | 0x20000000);
}

+#define ioremap_cache ioremap
#define ioremap_wc ioremap_nocache

static inline void iounmap(void *addr)
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 1f6d2ae..01edb85 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -137,6 +137,8 @@ static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
return __ioremap(offset, size, _PAGE_NO_CACHE);
}
#define ioremap_nocache(off, sz) ioremap((off), (sz))
+#define ioremap_cache(off, sz) ioremap((off), (sz))
+#define ioremap_wc(off, sz) ioremap((off), (sz))

extern void iounmap(const volatile void __iomem *addr);

diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index 001f2f1..ee41d61 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -643,6 +643,8 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
extern void __iomem *ioremap_flags(phys_addr_t address, unsigned long size,
unsigned long flags);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
+#define ioremap_cache(addr, size) ioremap((addr), (size))
+#define ioremap_wc(addr, size) ioremap((addr), (size))
#define ioremap_prot(addr, size, prot) ioremap_flags((addr), (size), (prot))

extern void iounmap(volatile void __iomem *addr);
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 28c5aa5..7dfbb47 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -369,6 +369,7 @@ static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; }
#endif

#define ioremap_nocache ioremap
+#define ioremap_wc ioremap
#define iounmap __iounmap

/*
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index c2ced21..f0a8173 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -275,6 +275,7 @@ _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
*/
extern void __iomem *ioremap(unsigned long offset, unsigned long size);
#define ioremap_nocache(X,Y) ioremap((X),(Y))
+#define ioremap_cache(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))
extern void iounmap(volatile void __iomem *addr);

diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9c89654..08fcfdb 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -491,6 +491,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
}

#define ioremap_nocache(X,Y) ioremap((X),(Y))
+#define ioremap_cache(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))

static inline void iounmap(volatile void __iomem *addr)
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index d3cbb9b..a9c5320 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -54,6 +54,8 @@ extern void iounmap(volatile void __iomem *addr);
#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
#define ioremap_writethrough(physaddr, size) ioremap(physaddr, size)
#define ioremap_fullcache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_cache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_wc(physaddr, size) ioremap(physaddr, size)

#define mmiowb()

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 0722730..4977ddc 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -34,8 +34,6 @@
* - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*/

-#define ARCH_HAS_IOREMAP_WC
-
#include <linux/string.h>
#include <linux/compiler.h>
#include <asm-generic/int-ll64.h>
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index d04cd3a..c392cd8 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -93,6 +93,9 @@ static inline void *ioremap_nocache(unsigned long offset, unsigned long size)
#endif
}

+#define ioremap_cache ioremap
+#define ioremap_wc ioremap_nocache
+
static inline void iounmap(void *addr)
{
}
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index d8ae634..2170634 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -81,7 +81,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
return -ENOMEM;
}
info->map.cached =
- ioremap_cached(info->map.phys, info->map.size);
+ ioremap_cache(info->map.phys, info->map.size);
if (!info->map.cached)
printk(KERN_WARNING "Failed to ioremap cached %s\n",
info->map.name);
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 4644c9a..598d26c 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -318,6 +318,10 @@ static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
#define ioremap_wc ioremap_nocache
#endif

+#ifndef ioremap_cache
+#define ioremap_cache ioremap
+#endif
+
static inline void iounmap(void *addr)
{
}
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 76b0cc5..67dc84c 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -60,10 +60,6 @@ extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long cou
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *);

-#ifndef ARCH_HAS_IOREMAP_WC
-#define ioremap_wc ioremap_nocache
-#endif
-
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
--
1.7.1