csky: add page fault perf event support

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This patch add support for page fault count, major fault count
and minorfault count. Without this patch page faults are not
sampled for perf event.

Performance counter stats for '/usr/lib/perf-test/callchain_test':
	0      page-faults               #    0.000 K/sec

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>

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Mao Han 2019-04-18 14:20:40 +08:00 • committed by Guo Ren

parent 683fafebf9

commit 0eaf50deec

1 changed files with 10 additions and 2 deletions

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arch/csky/mm/fault.c

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