From 8114c36ea6486aba2269d0590c5d553108ee9558 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Wed, 21 Mar 2018 15:17:00 +0100 Subject: [PATCH] powerpc/mm: Trace tlbia instruction Add a trace point for tlbia (Translation Lookaside Buffer Invalidate All) instruction. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/trace.h | 15 +++++++++++++++ arch/powerpc/mm/mmu_decl.h | 2 ++ 2 files changed, 17 insertions(+) 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) -- 2.30.2