On Tue, Jun 25, 2024 at 12:21:06AM +0100, Andre Przywara wrote: > This is an update to the H616 crypto engine support, with the sparse > warning fixed and the accrued tags added. > ======================== > > This series adds support for the crypto engine in the Allwinner H616 > SoC. The IP and its capabilities are very similar to the H6, with the > major difference of the DMA engine supporting 34 bit wide addresses. > This is achieved by just shifting every address by 2 bits in the DMA > descriptors; Allwinner calls this "word addresses". > Patch 2/4 adds support for this by wrapping every address access in a > function that does the shift as needed. Patch 1/4 adds the new > compatible string to the binding, patch 3/4 adds that string to the > driver and enables the address shift for it. The final patch 4/4 adds > the DT node to the SoC .dtsi. Since this is an internal peripheral, > it's always enabled. > > Corentin's cryptotest passed for me, though I haven't checked how fast > it is and if it really brings an advantage performance-wise, but maybe > people find it useful to offload that from the CPU cores. > One immediate advantage is the availability of the TRNG device, which > helps to feed the kernel's entropy pool much faster - typically before > we reach userland. Without the driver this sometimes takes minutes, and > delays workloads that rely on the entropy pool. > > Please have a look and comment! > > Cheers, > Andre > > Changelog v1 ... v2: > - fix sparse warning by treating writel() call differently (2/4) > - add Acks, R-b and Tested-by: tags > > Andre Przywara (4): > dt-bindings: crypto: sun8i-ce: Add compatible for H616 > crypto: sun8i-ce - wrap accesses to descriptor address fields > crypto: sun8i-ce - add Allwinner H616 support > arm64: dts: allwinner: h616: add crypto engine node > > .../bindings/crypto/allwinner,sun8i-ce.yaml | 2 ++ > .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 10 +++++++ > .../allwinner/sun8i-ce/sun8i-ce-cipher.c | 8 +++--- > .../crypto/allwinner/sun8i-ce/sun8i-ce-core.c | 28 ++++++++++++++++++- > .../crypto/allwinner/sun8i-ce/sun8i-ce-hash.c | 6 ++-- > .../crypto/allwinner/sun8i-ce/sun8i-ce-prng.c | 6 ++-- > .../crypto/allwinner/sun8i-ce/sun8i-ce-trng.c | 2 +- > drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h | 15 ++++++++++ > 8 files changed, 65 insertions(+), 12 deletions(-) > > -- > 2.39.4 Patches 1-3 applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
