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powerpc/mm: Trace tlbia instruction

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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>
This commit is contained in:
Christophe Leroy 2018-03-21 15:17:00 +01:00 committed by Michael Ellerman
parent cf4a608515
commit 8114c36ea6
2 changed files with 17 additions and 0 deletions
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15
arch/powerpc/include/asm/trace.h
View File

@ -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

2
arch/powerpc/mm/mmu_decl.h
View File

@ -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)