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authorAnton Blanchard <anton@ozlabs.org>2020-07-13 11:36:01 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2020-07-16 06:12:43 +0300
commitade7667a981be49af9310f7c682c226283ec833d (patch)
tree51dc1d8b7e9b5f3ca3c5f5b51f36d1324b687420 /arch/powerpc/include/asm/cputime.h
parente4208f1399b1bf7ed84ba359a6ba0979d1df4029 (diff)
downloadlinux-ade7667a981be49af9310f7c682c226283ec833d.tar.xz
powerpc: Add cputime_to_nsecs()
Generic code has a wrapper to implement cputime_to_nsecs() on top of cputime_to_usecs() but we can easily return the full nanosecond resolution directly. Signed-off-by: Anton Blanchard <anton@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200713083601.1103978-1-anton@ozlabs.org
Diffstat (limited to 'arch/powerpc/include/asm/cputime.h')
-rw-r--r--arch/powerpc/include/asm/cputime.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h
index 0fccd5ea1e9a..9335b93924b4 100644
--- a/arch/powerpc/include/asm/cputime.h
+++ b/arch/powerpc/include/asm/cputime.h
@@ -36,6 +36,8 @@ static inline unsigned long cputime_to_usecs(const cputime_t ct)
return mulhdu((__force u64) ct, __cputime_usec_factor);
}
+#define cputime_to_nsecs(cputime) tb_to_ns((__force u64)cputime)
+
/*
* PPC64 uses PACA which is task independent for storing accounting data while
* PPC32 uses struct thread_info, therefore at task switch the accounting data