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Commit ac41f9c4 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration 



Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: aaro.koskinen@iki.fi
Cc: david.daney@cavium.com
Cc: linux-kernel@vger.kernel.org
Cc: markos.chandras@imgtec.com
Cc: dengcheng.zhu@imgtec.com
Cc: chenhc@lemote.com
Cc: akpm@linux-foundation.org
Patchwork: https://patchwork.linux-mips.org/patch/8535/
parent 85546d7e

arch/mips/include/asm/r4kcache.h

+0 −59
Original line number Diff line number Diff line
@@ -47,79 +47,20 @@ extern void (*r4k_blast_icache)(void); 


#ifdef CONFIG_MIPS_MT



/*

 * Optionally force single-threaded execution during I-cache flushes.

 */

#define PROTECT_CACHE_FLUSHES 1



#ifdef PROTECT_CACHE_FLUSHES



extern int mt_protiflush;

extern int mt_protdflush;

extern void mt_cflush_lockdown(void);

extern void mt_cflush_release(void);



#define BEGIN_MT_IPROT \

	unsigned long flags = 0;			\

	unsigned long mtflags = 0;			\

	if(mt_protiflush) {				\

		local_irq_save(flags);			\

		ehb();					\

		mtflags = dvpe();			\

		mt_cflush_lockdown();			\

	}



#define END_MT_IPROT \

	if(mt_protiflush) {				\

		mt_cflush_release();			\

		evpe(mtflags);				\

		local_irq_restore(flags);		\

	}



#define BEGIN_MT_DPROT \

	unsigned long flags = 0;			\

	unsigned long mtflags = 0;			\

	if(mt_protdflush) {				\

		local_irq_save(flags);			\

		ehb();					\

		mtflags = dvpe();			\

		mt_cflush_lockdown();			\

	}



#define END_MT_DPROT \

	if(mt_protdflush) {				\

		mt_cflush_release();			\

		evpe(mtflags);				\

		local_irq_restore(flags);		\

	}



#else



#define BEGIN_MT_IPROT

#define BEGIN_MT_DPROT

#define END_MT_IPROT

#define END_MT_DPROT



#endif /* PROTECT_CACHE_FLUSHES */



#define __iflush_prologue						\

	unsigned long redundance;					\

	extern int mt_n_iflushes;					\

	BEGIN_MT_IPROT							\

	for (redundance = 0; redundance < mt_n_iflushes; redundance++) {



#define __iflush_epilogue						\

	END_MT_IPROT							\

	}



#define __dflush_prologue						\

	unsigned long redundance;					\

	extern int mt_n_dflushes;					\

	BEGIN_MT_DPROT							\

	for (redundance = 0; redundance < mt_n_dflushes; redundance++) {



#define __dflush_epilogue \

	END_MT_DPROT	 \

	}



#define __inv_dflush_prologue __dflush_prologue