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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/blackfin/include/asm/blackfin.h
15126 views
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/*

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 * Common header file for Blackfin family of processors.

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 *

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 * Copyright 2004-2009 Analog Devices Inc.

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 *

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 * Licensed under the GPL-2 or later.

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 */

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#ifndef _BLACKFIN_H_

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#define _BLACKFIN_H_

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#include <mach/anomaly.h>

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#ifndef __ASSEMBLY__

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/* SSYNC implementation for C file */

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static inline void SSYNC(void)

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{

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	int _tmp;

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	if (ANOMALY_05000312)

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		__asm__ __volatile__(

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			"cli %0;"

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			"nop;"

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			"nop;"

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			"ssync;"

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			"sti %0;"

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			: "=d" (_tmp)

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		);

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	else if (ANOMALY_05000244)

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		__asm__ __volatile__(

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			"nop;"

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			"nop;"

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			"nop;"

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			"ssync;"

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		);

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	else

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		__asm__ __volatile__("ssync;");

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}

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/* CSYNC implementation for C file */

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static inline void CSYNC(void)

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{

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	int _tmp;

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	if (ANOMALY_05000312)

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		__asm__ __volatile__(

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			"cli %0;"

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			"nop;"

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			"nop;"

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			"csync;"

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			"sti %0;"

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			: "=d" (_tmp)

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		);

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	else if (ANOMALY_05000244)

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		__asm__ __volatile__(

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			"nop;"

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			"nop;"

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			"nop;"

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			"csync;"

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		);

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	else

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		__asm__ __volatile__("csync;");

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}

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#else  /* __ASSEMBLY__ */

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#define LO(con32) ((con32) & 0xFFFF)

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#define lo(con32) ((con32) & 0xFFFF)

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#define HI(con32) (((con32) >> 16) & 0xFFFF)

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#define hi(con32) (((con32) >> 16) & 0xFFFF)

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/* SSYNC & CSYNC implementations for assembly files */

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#define ssync(x) SSYNC(x)

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#define csync(x) CSYNC(x)

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#if ANOMALY_05000312

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#define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;

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#define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;

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#elif ANOMALY_05000244

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#define SSYNC(scratch) nop; nop; nop; SSYNC;

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#define CSYNC(scratch) nop; nop; nop; CSYNC;

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#else

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#define SSYNC(scratch) SSYNC;

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#define CSYNC(scratch) CSYNC;

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#endif /* ANOMALY_05000312 & ANOMALY_05000244 handling */

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#endif /* __ASSEMBLY__ */

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#include <asm/mem_map.h>

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#include <mach/blackfin.h>

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#include <asm/bfin-global.h>

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#endif				/* _BLACKFIN_H_ */

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