Module Name: src Committed By: riastradh Date: Tue Jul 28 20:08:48 UTC 2020
Modified Files: src/sys/crypto/chacha/arch/arm: chacha_neon.c chacha_neon.h files.chacha_arm src/tests/sys/crypto/chacha: Makefile Added Files: src/sys/crypto/chacha/arch/arm: chacha_neon_32.S Log Message: Implement 4-way vectorization of ChaCha for armv7 NEON. cgd performance is not as good as I was hoping (~4% improvement over chacha_ref.c) but it should improve substantially more if we let the cgd worker thread keep fpu state so we don't have to pay the cost of isb and zero-the-fpu on every 512-byte cgd block. To generate a diff of this commit: cvs rdiff -u -r1.6 -r1.7 src/sys/crypto/chacha/arch/arm/chacha_neon.c cvs rdiff -u -r1.2 -r1.3 src/sys/crypto/chacha/arch/arm/chacha_neon.h \ src/sys/crypto/chacha/arch/arm/files.chacha_arm cvs rdiff -u -r0 -r1.1 src/sys/crypto/chacha/arch/arm/chacha_neon_32.S cvs rdiff -u -r1.2 -r1.3 src/tests/sys/crypto/chacha/Makefile Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.