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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-03-21 15:17:00 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-20 13:26:47 +1100 |
| commit | 8114c36ea6486aba2269d0590c5d553108ee9558 (patch) | |
| tree | da9fbca4ddb270c2596e1294d414d57ce5ee7166 | |
| parent | cf4a6085151ae3f4e78dd91981833e65aaae8bc6 (diff) | |
| download | linux-0-day-8114c36ea6486aba2269d0590c5d553108ee9558.tar.gz linux-0-day-8114c36ea6486aba2269d0590c5d553108ee9558.tar.xz | |
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>
| -rw-r--r-- | arch/powerpc/include/asm/trace.h | 15 | ||||
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h index d018e86026944..58ef8c43a89d8 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 1db2027a01103..8574fbbc45e0b 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) |