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ARM: Add support for 64 bit register reads/writes

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Add macros to read and write to 64 bit registers.

Change-Id: Id45d4086aa148ba96df3987c3341c133f1c56541
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Iliyan Malchev <malchev@google.com>

Conflicts:
	arch/arm/include/asm/io.h
This commit is contained in:
Olav Haugan
2013-03-08 09:03:42 -08:00
committed by Iliyan Malchev
parent c9cb68da74
commit e182f58a32
1 changed files with 24 additions and 1 deletions
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25
arch/arm/include/asm/io.h
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@@ -68,15 +68,18 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
#define __raw_writeb_no_log(v, a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a) = (v))
#define __raw_writew_no_log(v, a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))
#define __raw_writel_no_log(v, a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a) = (v))
#define __raw_writell_no_log(v, a) (__chk_io_ptr(a), *(volatile unsigned long long __force *)(a) = (v))
#define __raw_writeb(v, a) __raw_write_logged((v), (a), b)
#define __raw_writew(v, a) __raw_write_logged((v), (a), w)
#define __raw_writel(v, a) __raw_write_logged((v), (a), l)
#define __raw_writell(v, a) __raw_write_logged((v), (a), ll)
#define __raw_readb_no_log(a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a))
#define __raw_readw_no_log(a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a))
#define __raw_readl_no_log(a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a))
#define __raw_readll_no_log(a) (__chk_io_ptr(a), *(volatile unsigned long long __force *)(a))
#define __raw_read_logged(a, _l, _t) ({ \
unsigned _t __a; \
@@ -94,6 +97,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
#define __raw_readb(a) __raw_read_logged((a), b, char)
#define __raw_readw(a) __raw_read_logged((a), w, short)
#define __raw_readl(a) __raw_read_logged((a), l, int)
#define __raw_readll(a) __raw_read_logged((a), ll, long long)
/*
* Architecture ioremap implementation.
@@ -268,20 +272,35 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
__raw_readw(c)); __r; })
#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \
__raw_readl(c)); __r; })
#define readll_relaxed(c) ({ u64 __r = le64_to_cpu((__force __le64) \
__raw_readll(c)); __r; })
#define readl_relaxed_no_log(c) ({ u32 __r = le32_to_cpu((__force __le32) \
__raw_readl_no_log(c)); __r; })
#define readll_relaxed_no_log(c) ({ u64 __r = le64_to_cpu((__force __le64) \
__raw_readll_no_log(c)); __r; })
#define writeb_relaxed(v,c) ((void)__raw_writeb(v,c))
#define writew_relaxed(v,c) ((void)__raw_writew((__force u16) \
cpu_to_le16(v),c))
#define writel_relaxed(v,c) ((void)__raw_writel((__force u32) \
cpu_to_le32(v),c))
#define writell_relaxed(v, c) ((void)__raw_writell((__force u64) \
cpu_to_le64(v), c))
#define writel_relaxed_no_log(v, c) ((void)__raw_writel_no_log((__force u32) \
cpu_to_le32(v), c))
#define writell_relaxed_no_log(v, c) ((void)__raw_writell_no_log((__force u64) \
cpu_to_le64(v), c))
#define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; })
#define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; })
#define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; })
#define readll(c) ({ u64 __v = readll_relaxed(c); __iormb(); __v; })
#define writeb(v,c) ({ __iowmb(); writeb_relaxed(v,c); })
#define writew(v,c) ({ __iowmb(); writew_relaxed(v,c); })
#define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); })
#define writell(v, c) ({ __iowmb(); writell_relaxed(v, c); })
#define readsb(p,d,l) __raw_readsb(p,d,l)
#define readsw(p,d,l) __raw_readsw(p,d,l)
@@ -311,22 +330,26 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
#define iounmap __arm_iounmap
/*
* io{read,write}{8,16,32} macros
* io{read,write}{8,16,32,64} macros
*/
#ifndef ioread8
#define ioread8(p) ({ unsigned int __v = __raw_readb(p); __iormb(); __v; })
#define ioread16(p) ({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __iormb(); __v; })
#define ioread32(p) ({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __iormb(); __v; })
#define ioread64(p) ({ unsigned int __v = le64_to_cpu((__force __le64)__raw_readll(p)); __iormb(); __v; })
#define ioread16be(p) ({ unsigned int __v = be16_to_cpu((__force __be16)__raw_readw(p)); __iormb(); __v; })
#define ioread32be(p) ({ unsigned int __v = be32_to_cpu((__force __be32)__raw_readl(p)); __iormb(); __v; })
#define ioread64be(p) ({ unsigned int __v = be64_to_cpu((__force __be64)__raw_readll(p)); __iormb(); __v; })
#define iowrite8(v,p) ({ __iowmb(); (void)__raw_writeb(v, p); })
#define iowrite16(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_le16(v), p); })
#define iowrite32(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_le32(v), p); })
#define iowrite64(v, p) ({ __iowmb(); (void)__raw_writell((__force __u64)cpu_to_le64(v), p); })
#define iowrite16be(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_be16(v), p); })
#define iowrite32be(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_be32(v), p); })
#define iowrite64be(v, p) ({ __iowmb(); (void)__raw_writell((__force __u64)cpu_to_be64(v), p); })
#define ioread8_rep(p,d,c) __raw_readsb(p,d,c)
#define ioread16_rep(p,d,c) __raw_readsw(p,d,c)