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Commit 8114c36e authored Mar 21, 2018 by Christophe Leroy Committed by Michael Ellerman Oct 20, 2018

powerpc/mm: Trace tlbia instruction



Add a trace point for tlbia (Translation Lookaside Buffer Invalidate
All) instruction.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent cf4a6085

arch/powerpc/include/asm/trace.h

+15 −0

Original line number	Diff line number	Diff line
		@@ -201,6 +201,21 @@ TRACE_EVENT(tlbie,
		__entry->r)
		);

		TRACE_EVENT(tlbia,

		TP_PROTO(unsigned long id),
		TP_ARGS(id),
		TP_STRUCT__entry(
		__field(unsigned long, id)
		),

		TP_fast_assign(
		__entry->id = id;
		),

		TP_printk("ctx.id=0x%lx", __entry->id)
		);

		#endif /* _TRACE_POWERPC_H */

		#undef TRACE_INCLUDE_PATH

arch/powerpc/mm/mmu_decl.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -31,10 +31,12 @@
		static inline void _tlbil_all(void)
		{
		asm volatile ("sync; tlbia; isync" : : : "memory");
		trace_tlbia(MMU_NO_CONTEXT);
		}
		static inline void _tlbil_pid(unsigned int pid)
		{
		asm volatile ("sync; tlbia; isync" : : : "memory");
		trace_tlbia(pid);
		}
		#define _tlbil_pid_noind(pid) _tlbil_pid(pid)