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    arch/*/io.h: Add ioremap_wt() to all architectures · 556269c1
    Toshi Kani 提交于
    Add ioremap_wt() to all arch-specific asm/io.h headers which
    define ioremap_wc() locally. These headers do not include
    <asm-generic/iomap.h>. Some of them include <asm-generic/io.h>,
    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: NToshi Kani <toshi.kani@hp.com>
    Signed-off-by: NBorislav Petkov <bp@suse.de>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andy Lutomirski <luto@amacapital.net>
    Cc: Elliott@hp.com
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Luis R. Rodriguez <mcgrof@suse.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    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 <linux-mm@kvack.org>
    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.deSigned-off-by: NIngo Molnar <mingo@kernel.org>
    556269c1
io.h 8.8 KB