From 556269c138a8b2d3f5714b8105fa6119ecc505f2 Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Thu, 4 Jun 2015 18:55:16 +0200 Subject: arch/*/io.h: Add ioremap_wt() to all architectures Add ioremap_wt() to all arch-specific asm/io.h headers which define ioremap_wc() locally. These headers do not include . Some of them include , but ioremap_wt() is defined for consistency since they define all ioremap_xxx locally. In all architectures without Write-Through support, ioremap_wt() is defined indentical to ioremap_nocache(). frv and m68k already have ioremap_writethrough(). On those we add ioremap_wt() indetical to ioremap_writethrough() and defines ARCH_HAS_IOREMAP_WT in both architectures. The ioremap_wt() interface is exported to drivers. Signed-off-by: Toshi Kani Signed-off-by: Borislav Petkov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Elliott@hp.com Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Luis R. Rodriguez Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: arnd@arndb.de Cc: hch@lst.de Cc: hmh@hmh.eng.br Cc: jgross@suse.com Cc: konrad.wilk@oracle.com Cc: linux-mm Cc: linux-nvdimm@lists.01.org Cc: stefan.bader@canonical.com Cc: yigal@plexistor.com Link: http://lkml.kernel.org/r/1433436928-31903-9-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h index cabd518..7cc4ced 100644 --- a/arch/arc/include/asm/io.h +++ b/arch/arc/include/asm/io.h @@ -20,6 +20,7 @@ extern void iounmap(const void __iomem *addr); #define ioremap_nocache(phy, sz) ioremap(phy, sz) #define ioremap_wc(phy, sz) ioremap(phy, sz) +#define ioremap_wt(phy, sz) ioremap(phy, sz) /* Change struct page to physical address */ #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index db58deb..1b7677d 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -336,6 +336,7 @@ extern void _memset_io(volatile void __iomem *, int, size_t); #define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) #define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED) #define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC) +#define ioremap_wt(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) #define iounmap __arm_iounmap /* diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 540f7c0..7116d39 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -170,6 +170,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size); #define ioremap(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) #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 iounmap __iounmap /* diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h index 4f5ec2b..e998ff5 100644 --- a/arch/avr32/include/asm/io.h +++ b/arch/avr32/include/asm/io.h @@ -296,6 +296,7 @@ extern void __iounmap(void __iomem *addr); __iounmap(addr) #define ioremap_wc ioremap_nocache +#define ioremap_wt 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 0b78bc8..1fe98fe 100644 --- a/arch/frv/include/asm/io.h +++ b/arch/frv/include/asm/io.h @@ -17,6 +17,8 @@ #ifdef __KERNEL__ +#define ARCH_HAS_IOREMAP_WT + #include #include #include @@ -270,6 +272,11 @@ static inline void __iomem *ioremap_writethrough(unsigned long physaddr, unsigne return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); } +static inline void __iomem *ioremap_wt(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); +} + static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned long size) { return __ioremap(physaddr, size, IOMAP_FULL_CACHING); diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h index 9cc00db..0c3f25e 100644 --- a/arch/m32r/include/asm/io.h +++ b/arch/m32r/include/asm/io.h @@ -68,6 +68,7 @@ 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_wc ioremap_nocache +#define ioremap_wt ioremap_nocache /* * 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 8955b40..7c12138 100644 --- a/arch/m68k/include/asm/io_mm.h +++ b/arch/m68k/include/asm/io_mm.h @@ -20,6 +20,8 @@ #ifdef __KERNEL__ +#define ARCH_HAS_IOREMAP_WT + #include #include #include @@ -470,6 +472,11 @@ static inline void __iomem *ioremap_writethrough(unsigned long physaddr, { return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); } +static inline void __iomem *ioremap_wt(unsigned long physaddr, + unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); +} static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned long size) { diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h index a93c8cd..5fff9a2 100644 --- a/arch/m68k/include/asm/io_no.h +++ b/arch/m68k/include/asm/io_no.h @@ -3,6 +3,8 @@ #ifdef __KERNEL__ +#define ARCH_HAS_IOREMAP_WT + #include #include @@ -157,6 +159,10 @@ static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long s { return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); } +static inline void *ioremap_wt(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); +} static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size) { return __ioremap(physaddr, size, IOMAP_FULL_CACHING); diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h index d5779b0..9890f21 100644 --- a/arch/metag/include/asm/io.h +++ b/arch/metag/include/asm/io.h @@ -160,6 +160,9 @@ extern void __iounmap(void __iomem *addr); #define ioremap_wc(offset, size) \ __ioremap((offset), (size), _PAGE_WR_COMBINE) +#define ioremap_wt(offset, size) \ + __ioremap((offset), (size), 0) + #define iounmap(addr) \ __iounmap(addr) diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h index 940f5fc..ec3da11 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_nocache(addr, size) ioremap((addr), (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)) #endif /* CONFIG_MMU */ diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h index cc4a2ba..07c5b4a 100644 --- a/arch/mn10300/include/asm/io.h +++ b/arch/mn10300/include/asm/io.h @@ -282,6 +282,7 @@ static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long } #define ioremap_wc ioremap_nocache +#define ioremap_wt 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 6e24d7c..c5a62da 100644 --- a/arch/nios2/include/asm/io.h +++ b/arch/nios2/include/asm/io.h @@ -46,6 +46,7 @@ static inline void iounmap(void __iomem *addr) } #define ioremap_wc ioremap_nocache +#define ioremap_wt 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 30fd5c8..cb5fdf3 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -29,6 +29,7 @@ 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 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 407ac14..57f26c3 100644 --- a/arch/sparc/include/asm/io_32.h +++ b/arch/sparc/include/asm/io_32.h @@ -129,6 +129,7 @@ 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_wc(X,Y) ioremap((X),(Y)) +#define ioremap_wt(X,Y) ioremap((X),(Y)) void iounmap(volatile void __iomem *addr); /* Create a virtual mapping cookie for an IO port range */ diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h index 50d4840..c32fa3f 100644 --- a/arch/sparc/include/asm/io_64.h +++ b/arch/sparc/include/asm/io_64.h @@ -402,6 +402,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size) #define ioremap_nocache(X,Y) ioremap((X),(Y)) #define ioremap_wc(X,Y) ioremap((X),(Y)) +#define ioremap_wt(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 6ef4eca..9c3d950 100644 --- a/arch/tile/include/asm/io.h +++ b/arch/tile/include/asm/io.h @@ -54,6 +54,7 @@ extern void iounmap(volatile void __iomem *addr); #define ioremap_nocache(physaddr, size) ioremap(physaddr, size) #define ioremap_wc(physaddr, size) ioremap(physaddr, size) +#define ioremap_wt(physaddr, size) ioremap(physaddr, size) #define ioremap_writethrough(physaddr, size) ioremap(physaddr, size) #define ioremap_fullcache(physaddr, size) ioremap(physaddr, size) diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index fe1600a..c39bb6e 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -59,6 +59,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset, } #define ioremap_wc ioremap_nocache +#define ioremap_wt ioremap_nocache static inline void __iomem *ioremap(unsigned long offset, unsigned long size) { -- cgit v0.10.2