cregit-Linux how code gets into the kernel

Release 4.7 arch/powerpc/include/asm/synch.h

Directory: arch/powerpc/include/asm
#ifndef _ASM_POWERPC_SYNCH_H 

#define _ASM_POWERPC_SYNCH_H 
#ifdef __KERNEL__

#include <linux/stringify.h>
#include <asm/feature-fixups.h>

#if defined(__powerpc64__) || defined(CONFIG_PPC_E500MC)

#define __SUBARCH_HAS_LWSYNC
#endif

#ifndef __ASSEMBLY__
extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup;
extern void do_lwsync_fixups(unsigned long value, void *fixup_start,
			     void *fixup_end);
extern void do_final_fixups(void);




static inline void eieio(void)
{
	__asm__ __volatile__ ("eieio" : : : "memory");
}


Contributors
PersonTokensPropCommitsCommitProp
kumar galakumar gala12100.00%1100.00%


Total12100.00%1100.00%






static inline void isync(void)
{
	__asm__ __volatile__ ("isync" : : : "memory");
}

Contributors
PersonTokensPropCommitsCommitProp
kumar galakumar gala12100.00%1100.00%


Total12100.00%1100.00%



#endif /* __ASSEMBLY__ */

#if defined(__powerpc64__)

#    define LWSYNC	lwsync
#elif defined(CONFIG_E500)

#    define LWSYNC					\
	START_LWSYNC_SECTION(96);                       \
        sync;                                           \
        MAKE_LWSYNC_SECTION_ENTRY(96, __lwsync_fixup);
#else

#    define LWSYNC	sync
#endif

#ifdef CONFIG_SMP

#define __PPC_ACQUIRE_BARRIER				\
	START_LWSYNC_SECTION(97);                       \
        isync;                                          \
        MAKE_LWSYNC_SECTION_ENTRY(97, __lwsync_fixup);

#define PPC_ACQUIRE_BARRIER	 "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER)

#define PPC_RELEASE_BARRIER	 stringify_in_c(LWSYNC) "\n"

#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(sync) "\n"

#define PPC_ATOMIC_EXIT_BARRIER	 "\n" stringify_in_c(sync) "\n"
#else

#define PPC_ACQUIRE_BARRIER

#define PPC_RELEASE_BARRIER

#define PPC_ATOMIC_ENTRY_BARRIER

#define PPC_ATOMIC_EXIT_BARRIER
#endif

#endif /* __KERNEL__ */
#endif	/* _ASM_POWERPC_SYNCH_H */

Overall Contributors
PersonTokensPropCommitsCommitProp
kumar galakumar gala7343.71%214.29%


anton blanchardanton blanchard3722.16%642.86%


becky brucebecky bruce1710.18%17.14%


nick pigginnick piggin169.58%17.14%


benjamin herrenschmidtbenjamin herrenschmidt137.78%17.14%


arnd bergmannarnd bergmann63.59%17.14%


jakub jelinekjakub jelinek42.40%17.14%


boqun fengboqun feng10.60%17.14%


Total167100.00%14100.00%

  
Directory: arch/powerpc/include/asm



Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}