Commit f2d7f62e authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc: Implement ftrace_enabled() helpers 



Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Reviewed-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Link: https://lore.kernel.org/r/20200508043408.886394-13-npiggin@gmail.com
parent 116ac378

arch/powerpc/include/asm/ftrace.h

+14 −0
Original line number Diff line number Diff line
@@ -108,9 +108,23 @@ static inline void this_cpu_enable_ftrace(void) 
{

	get_paca()->ftrace_enabled = 1;

}



/* Disable ftrace on this CPU if possible (may not be implemented) */

static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled)

{

	get_paca()->ftrace_enabled = ftrace_enabled;

}



static inline u8 this_cpu_get_ftrace_enabled(void)

{

	return get_paca()->ftrace_enabled;

}



#else /* CONFIG_PPC64 */

static inline void this_cpu_disable_ftrace(void) { }

static inline void this_cpu_enable_ftrace(void) { }

static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled) { }

static inline u8 this_cpu_get_ftrace_enabled(void) { return 1; }

#endif /* CONFIG_PPC64 */

#endif /* !__ASSEMBLY__ */