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Commit 8978bfd2 authored by Guan Xuetao's avatar Guan Xuetao Committed by David Howells
Browse files

Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] 



Disintegrate asm/system.h for Unicore32. (Compilation successful)
The implementation details are not changed, but only splitted.
BTW, some codestyles are adjusted.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarGuan Xuetao <gxt@mprc.pku.edu.cn>
parent bd119c69

arch/unicore32/include/asm/Kbuild

+0 −1
Original line number Original line Diff line number Diff line
@@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm 
generic-y += atomic.h

generic-y += atomic.h

generic-y += auxvec.h

generic-y += auxvec.h

generic-y += bitsperlong.h

generic-y += bitsperlong.h

generic-y += bug.h

generic-y += bugs.h

generic-y += bugs.h

generic-y += cputime.h

generic-y += cputime.h

generic-y += current.h

generic-y += current.h

arch/unicore32/include/asm/barrier.h

0 → 100644
+28 −0
Original line number Original line Diff line number Diff line 
/*

 * Memory barrier implementations for PKUnity SoC and UniCore ISA

 *

 * Copyright (C) 2001-2012 GUAN Xue-tao

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __UNICORE_BARRIER_H__

#define __UNICORE_BARRIER_H__



#define isb() __asm__ __volatile__ ("" : : : "memory")

#define dsb() __asm__ __volatile__ ("" : : : "memory")

#define dmb() __asm__ __volatile__ ("" : : : "memory")



#define mb()				barrier()

#define rmb()				barrier()

#define wmb()				barrier()

#define smp_mb()			barrier()

#define smp_rmb()			barrier()

#define smp_wmb()			barrier()

#define read_barrier_depends()		do { } while (0)

#define smp_read_barrier_depends()	do { } while (0)



#define set_mb(var, value)		do { var = value; smp_mb(); } while (0)



#endif /* __UNICORE_BARRIER_H__ */

arch/unicore32/include/asm/bug.h

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Original line number Original line Diff line number Diff line 
/*

 * Bug handling for PKUnity SoC and UniCore ISA

 *

 * Copyright (C) 2001-2012 GUAN Xue-tao

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __UNICORE_BUG_H__

#define __UNICORE_BUG_H__



#include <asm-generic/bug.h>



struct pt_regs;

struct siginfo;



extern void die(const char *msg, struct pt_regs *regs, int err);

extern void uc32_notify_die(const char *str, struct pt_regs *regs,

		struct siginfo *info, unsigned long err, unsigned long trap);



extern asmlinkage void __backtrace(void);

extern asmlinkage void c_backtrace(unsigned long fp, int pmode);



extern void __show_regs(struct pt_regs *);



#endif /* __UNICORE_BUG_H__ */

arch/unicore32/include/asm/cmpxchg.h

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Original line number Original line Diff line number Diff line 
/*

 * Atomics xchg/cmpxchg for PKUnity SoC and UniCore ISA

 *

 * Copyright (C) 2001-2012 GUAN Xue-tao

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __UNICORE_CMPXCHG_H__

#define __UNICORE_CMPXCHG_H__



/*

 * Generate a link failure on undefined symbol if the pointer points to a value

 * of unsupported size.

 */

extern void __xchg_bad_pointer(void);



static inline unsigned long __xchg(unsigned long x, volatile void *ptr,

		int size)

{

	unsigned long ret;



	switch (size) {

	case 1:

		asm volatile("swapb	%0, %1, [%2]"

			: "=&r" (ret)

			: "r" (x), "r" (ptr)

			: "memory", "cc");

		break;

	case 4:

		asm volatile("swapw	%0, %1, [%2]"

			: "=&r" (ret)

			: "r" (x), "r" (ptr)

			: "memory", "cc");

		break;

	default:

		ret = __xchg_bad_pointer();

	}



	return ret;

}



#define xchg(ptr, x) \

	((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))



#include <asm-generic/cmpxchg-local.h>



/*

 * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make

 * them available.

 */

#define cmpxchg_local(ptr, o, n)					\

		((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr),	\

		(unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))

#define cmpxchg64_local(ptr, o, n)					\

		__cmpxchg64_local_generic((ptr), (o), (n))



#include <asm-generic/cmpxchg.h>



#endif /* __UNICORE_CMPXCHG_H__ */

arch/unicore32/include/asm/exec.h

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Original line number Original line Diff line number Diff line 
/*

 * Process execution bits for PKUnity SoC and UniCore ISA

 *

 * Copyright (C) 2001-2012 GUAN Xue-tao

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __UNICORE_EXEC_H__

#define __UNICORE_EXEC_H__



#define arch_align_stack(x)		(x)



#endif /* __UNICORE_EXEC_H__ */