diff options
| author | Arthur Othieno | 2005-08-20 21:48:47 -0400 |
|---|---|---|
| committer | Paul Mackerras | 2005-09-09 22:11:38 +1000 |
| commit | 766375362a1dcac63dc0c0fb61ce4143c8de63d9 (patch) | |
| tree | 2d328be90eb7f68f273858e0e017566f8402bf82 | |
| parent | 1635317facea3094ddf34082cd86797efb1d9f7e (diff) | |
[PATCH] ppc64: Big-endian I/O memory accessors.
I/O memory accessors. Big-endian version. For those busses/devices
that do export big-endian I/O memory.
Of notable relevance/reference:
http://lwn.net/Articles/132804/
http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019798.html
http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019752.html
Signed-Off-By: Arthur Othieno <a.othieno@bluewin.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/ppc64/kernel/iomap.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/iomap.c b/arch/ppc64/kernel/iomap.c index 153cc8b0f136..95b0baf87522 100644 --- a/arch/ppc64/kernel/iomap.c +++ b/arch/ppc64/kernel/iomap.c @@ -22,13 +22,23 @@ unsigned int fastcall ioread16(void __iomem *addr) { return readw(addr); } +unsigned int fastcall ioread16be(void __iomem *addr) +{ + return in_be16(addr); +} unsigned int fastcall ioread32(void __iomem *addr) { return readl(addr); } +unsigned int fastcall ioread32be(void __iomem *addr) +{ + return in_be32(addr); +} EXPORT_SYMBOL(ioread8); EXPORT_SYMBOL(ioread16); +EXPORT_SYMBOL(ioread16be); EXPORT_SYMBOL(ioread32); +EXPORT_SYMBOL(ioread32be); void fastcall iowrite8(u8 val, void __iomem *addr) { @@ -38,13 +48,23 @@ void fastcall iowrite16(u16 val, void __iomem *addr) { writew(val, addr); } +void fastcall iowrite16be(u16 val, void __iomem *addr) +{ + out_be16(addr, val); +} void fastcall iowrite32(u32 val, void __iomem *addr) { writel(val, addr); } +void fastcall iowrite32be(u32 val, void __iomem *addr) +{ + out_be32(addr, val); +} EXPORT_SYMBOL(iowrite8); EXPORT_SYMBOL(iowrite16); +EXPORT_SYMBOL(iowrite16be); EXPORT_SYMBOL(iowrite32); +EXPORT_SYMBOL(iowrite32be); /* * These are the "repeat read/write" functions. Note the |