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authorChristophe Leroy <christophe.leroy@c-s.fr>2018-03-21 15:17:00 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2018-10-20 13:26:47 +1100
commit8114c36ea6486aba2269d0590c5d553108ee9558 (patch)
treeda9fbca4ddb270c2596e1294d414d57ce5ee7166 /arch/powerpc
parentcf4a6085151ae3f4e78dd91981833e65aaae8bc6 (diff)
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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/trace.h15
-rw-r--r--arch/powerpc/mm/mmu_decl.h2
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index d018e8602694..58ef8c43a89d 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -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
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 1db2027a0110..8574fbbc45e0 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -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)