diff mbox series

powerpc: Add cputime_to_nsecs()

Message ID 20200713083601.1103978-1-anton@ozlabs.org (mailing list archive)
State Accepted
Commit ade7667a981be49af9310f7c682c226283ec833d
Headers show
Series powerpc: Add cputime_to_nsecs() | expand

Commit Message

Anton Blanchard July 13, 2020, 8:36 a.m. UTC
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>
---
 arch/powerpc/include/asm/cputime.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Michael Ellerman July 16, 2020, 12:55 p.m. UTC | #1
On Mon, 13 Jul 2020 18:36:01 +1000, Anton Blanchard wrote:
> 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.

Applied to powerpc/next.

[1/1] powerpc: Add cputime_to_nsecs()
      https://git.kernel.org/powerpc/c/ade7667a981be49af9310f7c682c226283ec833d

cheers
diff mbox series

Patch

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