[PATCH v2 0/4] crypto: rockchip: Add RK356x/RK3588 cryptographic offloader

[Eric Biggers]

On Mon, Aug 03, 2026 at 12:42:03PM +0200, Diederik de Haas wrote:
> crypto-rk3566-test-no-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/bb5dbfd59f244a6422b965b30f9796ebbfdb1fcb
> crypto-rk3566-test-with-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/ea72297678e19cbbc987de9548f9884382e1d1cc
> crypto-rk3568-test-no-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/309e519e6b1c31f4c1c5bcb1ea16cc8569a54830
> crypto-rk3568-test-with-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/1e1e938ebbbae75128974fe0a7c240843bce04c8
> crypto-rk3588-test-no-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/9a2adc2b2e42131445ce4576589e00ecf51ccb4b
> crypto-rk3588-test-with-crypto-module-log.txt:
> https://paste.sr.ht/~diederik/e04c11c8809031ca45662f7d4c227c1ba6162b65

Thanks for running some benchmarks!

Looking at your results for rk3566 for example, SHA-256 on 4096-byte
blocks is 115 cycles/operation for sha256-lib (i.e. ARMv8 CE) or 3027
cycles/operation for rk2-sha256.  So the Rockchip driver is 26 times
slower than simply using the existing well-tested CPU-based code.

Don't you love "accelerators" that make things 26 times slower?

I guess we'll get the usual argument that this driver is really just for
"testing" or whatever.

- Eric