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| author | Tero Kristo <t-kristo@ti.com> | 2016-06-22 16:23:34 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-06-24 21:24:57 +0800 |
| commit | e93f767bec1c4b58ac24bd59143c0030b9555426 (patch) | |
| tree | 14a837de9cbcd2d2665dfa34f21126bcfb4d7f6f /drivers/crypto/omap-aes.c | |
| parent | 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 (diff) | |
| download | linux-stable-e93f767bec1c4b58ac24bd59143c0030b9555426.tar.gz linux-stable-e93f767bec1c4b58ac24bd59143c0030b9555426.tar.bz2 linux-stable-e93f767bec1c4b58ac24bd59143c0030b9555426.zip | |
crypto: omap-sham - use runtime_pm autosuspend for clock handling
Calling runtime PM API for every block causes serious performance hit to
crypto operations that are done on a long buffer. As crypto is performed
on a page boundary, encrypting large buffers can cause a series of crypto
operations divided by page. The runtime PM API is also called those many
times.
Convert the driver to use runtime_pm autosuspend instead, with a default
timeout value of 1 second. This results in upto ~50% speedup.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/omap-aes.c')
0 files changed, 0 insertions, 0 deletions