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MIPS: add support for 64 bit addressing

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Prepare for upcoming mips64 support. This patch add mips64 address
support.

Signed-off-by: Zhizhou Zhang <etou.zh@gmail.com>
[daniel.schwierzeck@gmail.com: prefer _MIPS_SZLONG in posix_types.h to fix some warnings]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is contained in:
Zhi-zhou Zhang 2012-10-16 15:02:08 +02:00 committed by Daniel Schwierzeck
parent cb0a6a1ecc
commit 090854c826
3 changed files with 23 additions and 1 deletions
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2
arch/mips/include/asm/addrspace.h
View File

@ -136,7 +136,7 @@
cannot access physical memory directly from core */
#define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
#else /* !CONFIG_SOC_AU1X00 */
#define UNCACHED_SDRAM(a) KSEG1ADDR(a)
#define UNCACHED_SDRAM(a) CKSEG1ADDR(a)
#endif /* CONFIG_SOC_AU1X00 */
#endif /* __ASSEMBLY__ */

16
arch/mips/include/asm/io.h
View File

@ -120,12 +120,20 @@ static inline void set_io_port_base(unsigned long base)
*/
extern inline phys_addr_t virt_to_phys(volatile void * address)
{
#ifndef CONFIG_64BIT
return CPHYSADDR(address);
#else
return XPHYSADDR(address);
#endif
}
extern inline void * phys_to_virt(unsigned long address)
{
#ifndef CONFIG_64BIT
return (void *)KSEG0ADDR(address);
#else
return (void *)CKSEG0ADDR(address);
#endif
}
/*
@ -133,12 +141,20 @@ extern inline void * phys_to_virt(unsigned long address)
*/
extern inline unsigned long virt_to_bus(volatile void * address)
{
#ifndef CONFIG_64BIT
return CPHYSADDR(address);
#else
return XPHYSADDR(address);
#endif
}
extern inline void * bus_to_virt(unsigned long address)
{
#ifndef CONFIG_64BIT
return (void *)KSEG0ADDR(address);
#else
return (void *)CKSEG0ADDR(address);
#endif
}
/*

6
arch/mips/include/asm/posix_types.h
View File

@ -24,9 +24,15 @@ typedef int __kernel_pid_t;
typedef int __kernel_ipc_pid_t;
typedef int __kernel_uid_t;
typedef int __kernel_gid_t;
#if _MIPS_SZLONG != 64
typedef unsigned int __kernel_size_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
#else
typedef unsigned long __kernel_size_t;
typedef long __kernel_ssize_t;
typedef long __kernel_ptrdiff_t;
#endif
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;