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powerpc/trace: Restrict hash_fault trace event to HASH MMU

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'perf list' on powerpc 8xx shows an event named "1:hash_fault".

This event is pointless because trace_hash_fault() is called only
from mm/book3s64/hash_utils.c

Only define it when CONFIG_PPC_64S_HASH_MMU is selected.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/85a86e51b4ab26ce4b592984cc0a0851a3cc9479.1708076780.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2024-02-16 10:46:43 +01:00 committed by Michael Ellerman
parent a3e1820186
commit 9e00743aba
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/include/asm/trace.h
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@ -267,6 +267,7 @@ TRACE_EVENT_FN(opal_exit,
);
#endif
#ifdef CONFIG_PPC_64S_HASH_MMU
TRACE_EVENT(hash_fault,
TP_PROTO(unsigned long addr, unsigned long access, unsigned long trap),
@ -286,7 +287,7 @@ TRACE_EVENT(hash_fault,
TP_printk("hash fault with addr 0x%lx and access = 0x%lx trap = 0x%lx",
__entry->addr, __entry->access, __entry->trap)
);
#endif
TRACE_EVENT(tlbie,