Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit acd55b10 authored by Naveen N. Rao's avatar Naveen N. Rao Committed by Michael Ellerman
Browse files

powerpc64/ftrace: Add helpers to hard disable ftrace 



Add some helpers to enable/disable ftrace through paca->ftrace_enabled.

Signed-off-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent c3e59d77

arch/powerpc/include/asm/ftrace.h

+17 −0
Original line number Diff line number Diff line
@@ -82,6 +82,23 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name 
	return !strcmp(sym + 4, name + 3);

}

#endif /* CONFIG_FTRACE_SYSCALLS && PPC64_ELF_ABI_v1 */



#ifdef CONFIG_PPC64

#include <asm/paca.h>



static inline void this_cpu_disable_ftrace(void)

{

	get_paca()->ftrace_enabled = 0;

}



static inline void this_cpu_enable_ftrace(void)

{

	get_paca()->ftrace_enabled = 1;

}

#else /* CONFIG_PPC64 */

static inline void this_cpu_disable_ftrace(void) { }

static inline void this_cpu_enable_ftrace(void) { }

#endif /* CONFIG_PPC64 */

#endif /* !__ASSEMBLY__ */



#endif /* _ASM_POWERPC_FTRACE */