[PATCH 0/5] xor/arm: Replace vectorized version with intrinsics
Ard Biesheuvel <[email protected]>
| Newsgroups | gmane.linux.kernel.cryptoapi,gmane.linux.raid,gmane.linux.ports.arm.kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Ard Biesheuvel <[email protected]> Replace the compiler vectorized XOR implementation for ARM with the existing NEON intrinsics implementation used by arm64. This is slightly faster, and allows some minor cleanups of the type hacks in the headers now that intrinsics are the only C code permitted to use FP/SIMD instructions. Performance (QEMU mach-virt VM running on Synquacer [Cortex-A53 @ 1 GHz] Before: [ 3.519687] xor: measuring software checksum speed [ 3.521725] neon : 1660 MB/sec [ 3.524733] 32regs : 1105 MB/sec [ 3.527751] 8regs : 1098 MB/sec [ 3.529911] arm4regs : 1540 MB/sec After: [ 3.517654] xor: measuring software checksum speed [ 3.519454] neon : 1896 MB/sec [ 3.522499] 32regs : 1090 MB/sec [ 3.525560] 8regs : 1083 MB/sec [ 3.527700] arm4regs : 1556 MB/sec This applies onto Christoph's XOR cleanup series. Cc: Christoph Hellwig <[email protected]> Cc: Russell King <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Eric Biggers <[email protected]> Ard Biesheuvel (5): ARM: Add a neon-intrinsics.h header like on arm64 crypto: aegis128 - Use neon-intrinsics.h on ARM too xor/arm: Replace vectorized implementation with arm64's intrinsics xor/arm64: Use shared NEON intrinsics implementation from 32-bit ARM ARM: Remove hacked-up asm/types.h header arch/arm/include/asm/neon-intrinsics.h | 64 +++++++ arch/arm/include/uapi/asm/types.h | 41 ----- crypto/aegis128-neon-inner.c | 4 +- lib/raid/xor/arm/xor-neon.c | 183 ++++++++++++++++++-- lib/raid/xor/arm/xor-neon.h | 7 + lib/raid/xor/arm/xor_arch.h | 7 +- lib/raid/xor/arm64/xor-neon.c | 170 +----------------- lib/raid/xor/arm64/xor-neon.h | 3 + lib/raid/xor/arm64/xor_arch.h | 4 +- lib/raid/xor/xor-8regs.c | 2 - 10 files changed, 244 insertions(+), 241 deletions(-) create mode 100644 arch/arm/include/asm/neon-intrinsics.h delete mode 100644 arch/arm/include/uapi/asm/types.h create mode 100644 lib/raid/xor/arm/xor-neon.h -- 2.53.0.1018.g2bb0e51243-goog