From: Dan Williams <dan.j.williams@intel.com>
To: arnd@arndb.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
tglx@linutronix.de, ross.zwisler@linux.intel.com,
akpm@linux-foundation.org
Cc: jgross@suse.com, x86@kernel.org, toshi.kani@hp.com,
linux-nvdimm@lists.01.org, benh@kernel.crashing.org,
mcgrof@suse.com, konrad.wilk@oracle.com,
linux-kernel@vger.kernel.org, stefan.bader@canonical.com,
luto@amacapital.net, linux-mm@kvack.org, geert@linux-m68k.org,
ralf@linux-mips.org, hmh@hmh.eng.br, mpe@ellerman.id.au,
tj@kernel.org, paulus@samba.org, hch@lst.de
Subject: [PATCH v3 3/6] arch/*/asm/io.h: add ioremap_cache() to all architectures
Date: Wed, 03 Jun 2015 17:34:28 -0400 [thread overview]
Message-ID: <20150603213428.13749.99455.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <20150603211948.13749.85816.stgit@dwillia2-desk3.amr.corp.intel.com>
Similar to ioremap_wc() let architecture implementations optionally
provide ioremap_cache(). As is, current ioremap_cache() users have
architecture dependencies that prevent them from compiling on archs
without ioremap_cache(). In some cases the architectures that have a
cached ioremap() capability have an identifier other than
"ioremap_cache".
Allow drivers to compile with ioremap_cache() support and fallback to a
safe / uncached ioremap otherwise.
Cc: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
arch/arc/include/asm/io.h | 1 +
arch/arm/include/asm/io.h | 2 ++
arch/arm64/include/asm/io.h | 3 +++
arch/avr32/include/asm/io.h | 1 +
arch/frv/include/asm/io.h | 6 ++++++
arch/ia64/include/asm/io.h | 5 -----
arch/m32r/include/asm/io.h | 1 +
arch/m68k/include/asm/io_mm.h | 7 +++++++
arch/m68k/include/asm/io_no.h | 5 +++++
arch/metag/include/asm/io.h | 5 +++++
arch/microblaze/include/asm/io.h | 1 +
arch/mips/include/asm/io.h | 17 +++++++++++++----
arch/mn10300/include/asm/io.h | 1 +
arch/nios2/include/asm/io.h | 1 +
arch/s390/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 | 1 +
arch/x86/include/asm/io.h | 1 +
arch/xtensa/include/asm/io.h | 3 +++
include/asm-generic/io.h | 8 ++++++++
include/asm-generic/iomap.h | 4 ++++
22 files changed, 67 insertions(+), 9 deletions(-)
diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
index 7cc4ced5dbf4..6b6f5a47acec 100644
--- a/arch/arc/include/asm/io.h
+++ b/arch/arc/include/asm/io.h
@@ -19,6 +19,7 @@ extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
extern void iounmap(const void __iomem *addr);
#define ioremap_nocache(phy, sz) ioremap(phy, sz)
+#define ioremap_cache(phy, sz) ioremap(phy, sz)
#define ioremap_wc(phy, sz) ioremap(phy, sz)
#define ioremap_wt(phy, sz) ioremap(phy, sz)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1b7677d1e5e1..5e2c5cbdffdc 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -23,6 +23,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <linux/blk_types.h>
#include <asm/byteorder.h>
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 7116d3973058..6a8836c9d993 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -21,6 +21,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <linux/blk_types.h>
@@ -171,6 +173,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
#define ioremap_nocache(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
#define ioremap_wc(addr, size) __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
#define ioremap_wt(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
+#define ioremap_cache ioremap_cache
#define iounmap __iounmap
/*
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index e998ff5d8e1a..c6994d880dbd 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -297,6 +297,7 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
#define cached(addr) P1SEGADDR(addr)
#define uncached(addr) P2SEGADDR(addr)
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index a31b63ec4930..cd841f852af3 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -18,6 +18,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/types.h>
#include <asm/virtconvert.h>
@@ -277,6 +278,11 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned l
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void __iomem *ioremap_cache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
#define ioremap_wc ioremap_nocache
extern void iounmap(void volatile __iomem *addr);
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 8588ef767a44..cba265c30c3c 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -431,11 +431,6 @@ extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size
#define early_memremap(phys_addr, size) early_ioremap(phys_addr, size)
extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
#define early_memunmap(addr, size) early_iounmap(addr, size)
-static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
-{
- return ioremap(phys_addr, size);
-}
-
/*
* String version of IO memory access ops:
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 0c3f25ee3381..f3eceeac25c8 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -67,6 +67,7 @@ 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 ioremap_nocache
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index 618c85d3c786..aaf1009f2f94 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -21,6 +21,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/compiler.h>
#include <asm/raw_io.h>
@@ -478,6 +479,12 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void __iomem *ioremap_cache(unsigned long physaddr,
+ unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
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 ad7bd40e6742..020483566b73 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -4,6 +4,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <asm/virtconvert.h>
#include <asm-generic/iomap.h>
@@ -163,6 +164,10 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void *ioremap_cache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
#define iounmap(addr) do { } while(0)
diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h
index 9890f21eadbe..d9b2873e3ca8 100644
--- a/arch/metag/include/asm/io.h
+++ b/arch/metag/include/asm/io.h
@@ -1,6 +1,8 @@
#ifndef _ASM_METAG_IO_H
#define _ASM_METAG_IO_H
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <asm/pgtable-bits.h>
@@ -157,6 +159,9 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_cached(offset, size) \
__ioremap((offset), (size), _PAGE_CACHEABLE)
+#define ioremap_cache(offset, size) \
+ __ioremap((offset), (size), _PAGE_CACHEABLE)
+
#define ioremap_wc(offset, size) \
__ioremap((offset), (size), _PAGE_WR_COMBINE)
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 39b6315db82e..986cc0c9e67f 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -43,6 +43,7 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_fullcache(addr, size) ioremap((addr), (size))
#define ioremap_wc(addr, size) ioremap((addr), (size))
#define ioremap_wt(addr, size) ioremap((addr), (size))
+#define ioremap_cache(addr, size) ioremap((addr), (size))
#endif /* CONFIG_MMU */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 9e777cd42b67..6d4c3ae146a5 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -12,6 +12,8 @@
#ifndef _ASM_IO_H
#define _ASM_IO_H
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/types.h>
@@ -232,8 +234,10 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* address is not guaranteed to be usable directly as a virtual
* address.
*/
-#define ioremap(offset, size) \
- __ioremap_mode((offset), (size), _CACHE_UNCACHED)
+static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
+{
+ return __ioremap_mode(offset, size, _CACHE_UNCACHED);
+}
/*
* ioremap_nocache - map bus memory into CPU space
@@ -254,8 +258,7 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* It's useful if some control registers are in such an area and
* write combining or read caching is not desirable:
*/
-#define ioremap_nocache(offset, size) \
- __ioremap_mode((offset), (size), _CACHE_UNCACHED)
+#define ioremap_nocache ioremap
/*
* ioremap_cachable - map bus memory into CPU space
@@ -272,8 +275,14 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* the CPU. Also enables full write-combining. Useful for some
* memory-like regions on I/O busses.
*/
+extern unsigned long _page_cachable_default;
#define ioremap_cachable(offset, size) \
__ioremap_mode((offset), (size), _page_cachable_default)
+static inline void __iomem *ioremap_cache(resource_size_t offset,
+ unsigned long size)
+{
+ return ioremap_cachable(offset, size);
+}
/*
* These two are MIPS specific ioremap variant. ioremap_cacheable_cow
diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
index 07c5b4a3903b..dcab414f40df 100644
--- a/arch/mn10300/include/asm/io.h
+++ b/arch/mn10300/include/asm/io.h
@@ -283,6 +283,7 @@ static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
static inline void iounmap(void __iomem *addr)
{
diff --git a/arch/nios2/include/asm/io.h b/arch/nios2/include/asm/io.h
index c5a62da22cd2..367e2ea7663a 100644
--- a/arch/nios2/include/asm/io.h
+++ b/arch/nios2/include/asm/io.h
@@ -47,6 +47,7 @@ static inline void iounmap(void __iomem *addr)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
/* Pages to physical address... */
#define page_to_phys(page) virt_to_phys(page_to_virt(page))
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index cb5fdf3a78fc..6824c3daa2a1 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -30,6 +30,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
#define ioremap_nocache(addr, size) ioremap(addr, size)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 57f26c398dc9..b9a734caf57d 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -128,6 +128,7 @@ static inline void sbus_memcpy_toio(volatile void __iomem *dst,
*/
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))
#define ioremap_wt(X,Y) ioremap((X),(Y))
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 b99ae1fac174..61f5d04da892 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -401,6 +401,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
}
#define ioremap_nocache ioremap
+#define ioremap_cache ioremap
#define ioremap_wc ioremap
#define ioremap_wt ioremap
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index dc61de15c1f9..fe853a135e25 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -53,6 +53,7 @@ extern void iounmap(volatile void __iomem *addr);
#endif
#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_cache(physaddr, size) ioremap(physaddr, size)
#define ioremap_wc(physaddr, size) ioremap(physaddr, size)
#define ioremap_wt(physaddr, size) ioremap(physaddr, size)
#define ioremap_fullcache(physaddr, size) ioremap(physaddr, size)
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 6c3a130de503..956f2768bdc1 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -36,6 +36,7 @@
#define ARCH_HAS_IOREMAP_WC
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/string.h>
#include <linux/compiler.h>
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index c39bb6e61911..f91a8a99aa29 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -12,6 +12,9 @@
#define _XTENSA_IO_H
#ifdef __KERNEL__
+
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <asm/byteorder.h>
#include <asm/page.h>
#include <asm/vectors.h>
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index f56094cfdeff..a0665dfcab47 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -793,6 +793,14 @@ static inline void __iomem *ioremap_wt(phys_addr_t offset, size_t size)
}
#endif
+#ifndef ioremap_cache
+#define ioremap_cache ioremap_cache
+static inline void __iomem *ioremap_cache(phys_addr_t offset, size_t size)
+{
+ return ioremap_nocache(offset, size);
+}
+#endif
+
#ifndef iounmap
#define iounmap iounmap
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index d8f8622fa044..f0f30464cecd 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -70,6 +70,10 @@ extern void ioport_unmap(void __iomem *);
#define ioremap_wt ioremap_nocache
#endif
+#ifndef ARCH_HAS_IOREMAP_CACHE
+#define ioremap_cache ioremap_nocache
+#endif
+
#ifdef CONFIG_PCI
/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams@intel.com>
To: arnd@arndb.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
tglx@linutronix.de, ross.zwisler@linux.intel.com,
akpm@linux-foundation.org
Cc: jgross@suse.com, x86@kernel.org, toshi.kani@hp.com,
linux-nvdimm@ml01.01.org, benh@kernel.crashing.org,
mcgrof@suse.com, konrad.wilk@oracle.com,
linux-kernel@vger.kernel.org, stefan.bader@canonical.com,
luto@amacapital.net, linux-mm@kvack.org, geert@linux-m68k.org,
ralf@linux-mips.org, hmh@hmh.eng.br, mpe@ellerman.id.au,
tj@kernel.org, paulus@samba.org, hch@lst.de
Subject: [PATCH v3 3/6] arch/*/asm/io.h: add ioremap_cache() to all architectures
Date: Wed, 03 Jun 2015 17:34:28 -0400 [thread overview]
Message-ID: <20150603213428.13749.99455.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <20150603211948.13749.85816.stgit@dwillia2-desk3.amr.corp.intel.com>
Similar to ioremap_wc() let architecture implementations optionally
provide ioremap_cache(). As is, current ioremap_cache() users have
architecture dependencies that prevent them from compiling on archs
without ioremap_cache(). In some cases the architectures that have a
cached ioremap() capability have an identifier other than
"ioremap_cache".
Allow drivers to compile with ioremap_cache() support and fallback to a
safe / uncached ioremap otherwise.
Cc: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
arch/arc/include/asm/io.h | 1 +
arch/arm/include/asm/io.h | 2 ++
arch/arm64/include/asm/io.h | 3 +++
arch/avr32/include/asm/io.h | 1 +
arch/frv/include/asm/io.h | 6 ++++++
arch/ia64/include/asm/io.h | 5 -----
arch/m32r/include/asm/io.h | 1 +
arch/m68k/include/asm/io_mm.h | 7 +++++++
arch/m68k/include/asm/io_no.h | 5 +++++
arch/metag/include/asm/io.h | 5 +++++
arch/microblaze/include/asm/io.h | 1 +
arch/mips/include/asm/io.h | 17 +++++++++++++----
arch/mn10300/include/asm/io.h | 1 +
arch/nios2/include/asm/io.h | 1 +
arch/s390/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 | 1 +
arch/x86/include/asm/io.h | 1 +
arch/xtensa/include/asm/io.h | 3 +++
include/asm-generic/io.h | 8 ++++++++
include/asm-generic/iomap.h | 4 ++++
22 files changed, 67 insertions(+), 9 deletions(-)
diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
index 7cc4ced5dbf4..6b6f5a47acec 100644
--- a/arch/arc/include/asm/io.h
+++ b/arch/arc/include/asm/io.h
@@ -19,6 +19,7 @@ extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
extern void iounmap(const void __iomem *addr);
#define ioremap_nocache(phy, sz) ioremap(phy, sz)
+#define ioremap_cache(phy, sz) ioremap(phy, sz)
#define ioremap_wc(phy, sz) ioremap(phy, sz)
#define ioremap_wt(phy, sz) ioremap(phy, sz)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1b7677d1e5e1..5e2c5cbdffdc 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -23,6 +23,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <linux/blk_types.h>
#include <asm/byteorder.h>
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 7116d3973058..6a8836c9d993 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -21,6 +21,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <linux/blk_types.h>
@@ -171,6 +173,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
#define ioremap_nocache(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
#define ioremap_wc(addr, size) __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
#define ioremap_wt(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
+#define ioremap_cache ioremap_cache
#define iounmap __iounmap
/*
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index e998ff5d8e1a..c6994d880dbd 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -297,6 +297,7 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
#define cached(addr) P1SEGADDR(addr)
#define uncached(addr) P2SEGADDR(addr)
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index a31b63ec4930..cd841f852af3 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -18,6 +18,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/types.h>
#include <asm/virtconvert.h>
@@ -277,6 +278,11 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned l
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void __iomem *ioremap_cache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
#define ioremap_wc ioremap_nocache
extern void iounmap(void volatile __iomem *addr);
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 8588ef767a44..cba265c30c3c 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -431,11 +431,6 @@ extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size
#define early_memremap(phys_addr, size) early_ioremap(phys_addr, size)
extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
#define early_memunmap(addr, size) early_iounmap(addr, size)
-static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
-{
- return ioremap(phys_addr, size);
-}
-
/*
* String version of IO memory access ops:
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 0c3f25ee3381..f3eceeac25c8 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -67,6 +67,7 @@ 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 ioremap_nocache
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index 618c85d3c786..aaf1009f2f94 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -21,6 +21,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/compiler.h>
#include <asm/raw_io.h>
@@ -478,6 +479,12 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void __iomem *ioremap_cache(unsigned long physaddr,
+ unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
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 ad7bd40e6742..020483566b73 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -4,6 +4,7 @@
#ifdef __KERNEL__
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <asm/virtconvert.h>
#include <asm-generic/iomap.h>
@@ -163,6 +164,10 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
+static inline void *ioremap_cache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
#define iounmap(addr) do { } while(0)
diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h
index 9890f21eadbe..d9b2873e3ca8 100644
--- a/arch/metag/include/asm/io.h
+++ b/arch/metag/include/asm/io.h
@@ -1,6 +1,8 @@
#ifndef _ASM_METAG_IO_H
#define _ASM_METAG_IO_H
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/types.h>
#include <asm/pgtable-bits.h>
@@ -157,6 +159,9 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_cached(offset, size) \
__ioremap((offset), (size), _PAGE_CACHEABLE)
+#define ioremap_cache(offset, size) \
+ __ioremap((offset), (size), _PAGE_CACHEABLE)
+
#define ioremap_wc(offset, size) \
__ioremap((offset), (size), _PAGE_WR_COMBINE)
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 39b6315db82e..986cc0c9e67f 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -43,6 +43,7 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_fullcache(addr, size) ioremap((addr), (size))
#define ioremap_wc(addr, size) ioremap((addr), (size))
#define ioremap_wt(addr, size) ioremap((addr), (size))
+#define ioremap_cache(addr, size) ioremap((addr), (size))
#endif /* CONFIG_MMU */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 9e777cd42b67..6d4c3ae146a5 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -12,6 +12,8 @@
#ifndef _ASM_IO_H
#define _ASM_IO_H
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/types.h>
@@ -232,8 +234,10 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* address is not guaranteed to be usable directly as a virtual
* address.
*/
-#define ioremap(offset, size) \
- __ioremap_mode((offset), (size), _CACHE_UNCACHED)
+static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
+{
+ return __ioremap_mode(offset, size, _CACHE_UNCACHED);
+}
/*
* ioremap_nocache - map bus memory into CPU space
@@ -254,8 +258,7 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* It's useful if some control registers are in such an area and
* write combining or read caching is not desirable:
*/
-#define ioremap_nocache(offset, size) \
- __ioremap_mode((offset), (size), _CACHE_UNCACHED)
+#define ioremap_nocache ioremap
/*
* ioremap_cachable - map bus memory into CPU space
@@ -272,8 +275,14 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si
* the CPU. Also enables full write-combining. Useful for some
* memory-like regions on I/O busses.
*/
+extern unsigned long _page_cachable_default;
#define ioremap_cachable(offset, size) \
__ioremap_mode((offset), (size), _page_cachable_default)
+static inline void __iomem *ioremap_cache(resource_size_t offset,
+ unsigned long size)
+{
+ return ioremap_cachable(offset, size);
+}
/*
* These two are MIPS specific ioremap variant. ioremap_cacheable_cow
diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
index 07c5b4a3903b..dcab414f40df 100644
--- a/arch/mn10300/include/asm/io.h
+++ b/arch/mn10300/include/asm/io.h
@@ -283,6 +283,7 @@ static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
static inline void iounmap(void __iomem *addr)
{
diff --git a/arch/nios2/include/asm/io.h b/arch/nios2/include/asm/io.h
index c5a62da22cd2..367e2ea7663a 100644
--- a/arch/nios2/include/asm/io.h
+++ b/arch/nios2/include/asm/io.h
@@ -47,6 +47,7 @@ static inline void iounmap(void __iomem *addr)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
/* Pages to physical address... */
#define page_to_phys(page) virt_to_phys(page_to_virt(page))
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index cb5fdf3a78fc..6824c3daa2a1 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -30,6 +30,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
#define ioremap_nocache(addr, size) ioremap(addr, size)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
+#define ioremap_cache ioremap_nocache
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 57f26c398dc9..b9a734caf57d 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -128,6 +128,7 @@ static inline void sbus_memcpy_toio(volatile void __iomem *dst,
*/
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))
#define ioremap_wt(X,Y) ioremap((X),(Y))
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 b99ae1fac174..61f5d04da892 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -401,6 +401,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
}
#define ioremap_nocache ioremap
+#define ioremap_cache ioremap
#define ioremap_wc ioremap
#define ioremap_wt ioremap
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index dc61de15c1f9..fe853a135e25 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -53,6 +53,7 @@ extern void iounmap(volatile void __iomem *addr);
#endif
#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
+#define ioremap_cache(physaddr, size) ioremap(physaddr, size)
#define ioremap_wc(physaddr, size) ioremap(physaddr, size)
#define ioremap_wt(physaddr, size) ioremap(physaddr, size)
#define ioremap_fullcache(physaddr, size) ioremap(physaddr, size)
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 6c3a130de503..956f2768bdc1 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -36,6 +36,7 @@
#define ARCH_HAS_IOREMAP_WC
#define ARCH_HAS_IOREMAP_WT
+#define ARCH_HAS_IOREMAP_CACHE
#include <linux/string.h>
#include <linux/compiler.h>
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index c39bb6e61911..f91a8a99aa29 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -12,6 +12,9 @@
#define _XTENSA_IO_H
#ifdef __KERNEL__
+
+#define ARCH_HAS_IOREMAP_CACHE
+
#include <asm/byteorder.h>
#include <asm/page.h>
#include <asm/vectors.h>
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index f56094cfdeff..a0665dfcab47 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -793,6 +793,14 @@ static inline void __iomem *ioremap_wt(phys_addr_t offset, size_t size)
}
#endif
+#ifndef ioremap_cache
+#define ioremap_cache ioremap_cache
+static inline void __iomem *ioremap_cache(phys_addr_t offset, size_t size)
+{
+ return ioremap_nocache(offset, size);
+}
+#endif
+
#ifndef iounmap
#define iounmap iounmap
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index d8f8622fa044..f0f30464cecd 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -70,6 +70,10 @@ extern void ioport_unmap(void __iomem *);
#define ioremap_wt ioremap_nocache
#endif
+#ifndef ARCH_HAS_IOREMAP_CACHE
+#define ioremap_cache ioremap_nocache
+#endif
+
#ifdef CONFIG_PCI
/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
next prev parent reply other threads:[~2015-06-03 21:34 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-03 21:34 [PATCH v3 0/6] pmem api, generic ioremap_cache, and memremap Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-03 21:34 ` [PATCH v3 1/6] arch: unify ioremap prototypes and macro aliases Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-03 21:34 ` [PATCH v3 2/6] cleanup IORESOURCE_CACHEABLE vs ioremap() Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-03 23:58 ` Dan Williams
2015-06-03 23:58 ` Dan Williams
2015-06-03 21:34 ` Dan Williams [this message]
2015-06-03 21:34 ` [PATCH v3 3/6] arch/*/asm/io.h: add ioremap_cache() to all architectures Dan Williams
2015-06-03 21:34 ` [PATCH v3 4/6] devm: fix ioremap_cache() usage Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-03 21:34 ` [PATCH v3 5/6] arch: introduce memremap_cache() and memremap_wt() Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-08 16:27 ` Andy Shevchenko
2015-06-08 16:27 ` Andy Shevchenko
2015-06-08 18:25 ` Dan Williams
2015-06-08 18:25 ` Dan Williams
2015-06-08 19:04 ` Andy Shevchenko
2015-06-08 19:04 ` Andy Shevchenko
2015-06-08 19:39 ` Dan Williams
2015-06-08 19:39 ` Dan Williams
2015-06-03 21:34 ` [PATCH v3 6/6] arch, x86: pmem api for ensuring durability of persistent memory updates Dan Williams
2015-06-03 21:34 ` Dan Williams
2015-06-03 21:38 ` [PATCH v3 0/6] pmem api, generic ioremap_cache, and memremap Dan Williams
2015-06-03 21:38 ` Dan Williams
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150603213428.13749.99455.stgit@dwillia2-desk3.amr.corp.intel.com \
--to=dan.j.williams@intel.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=benh@kernel.crashing.org \
--cc=bp@alien8.de \
--cc=geert@linux-m68k.org \
--cc=hch@lst.de \
--cc=hmh@hmh.eng.br \
--cc=hpa@zytor.com \
--cc=jgross@suse.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nvdimm@lists.01.org \
--cc=luto@amacapital.net \
--cc=mcgrof@suse.com \
--cc=mingo@redhat.com \
--cc=mpe@ellerman.id.au \
--cc=paulus@samba.org \
--cc=ralf@linux-mips.org \
--cc=ross.zwisler@linux.intel.com \
--cc=stefan.bader@canonical.com \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
--cc=toshi.kani@hp.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.