From ac41f9c46282926c92b8bd0dcb1aca29a97d13ab Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 20 Nov 2014 22:45:58 +0100 Subject: MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration Signed-off-by: Ralf Baechle Cc: Leonid Yegoshin 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/ --- arch/mips/include/asm/r4kcache.h | 59 ---------------------------------------- 1 file changed, 59 deletions(-) (limited to 'arch/mips/include/asm/r4kcache.h') diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h index 4520adc8699b..617d2b8211f5 100644 --- a/arch/mips/include/asm/r4kcache.h +++ b/arch/mips/include/asm/r4kcache.h @@ -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 -- cgit v1.2.3