MIPSr6 architecture introduces a new CRC32(C) instruction. The following patches add a crypto acceleration module for crc32 and crc32c algorithms using the new instructions.
Changes in v3: - Convert to using assembler macros to support CRC instructions on older toolchains, using the helpers merged for 4.16. This removes the need to hardcode either rt or rs (i.e. as $v0 (CRC_REGISTER) and $at), and drops the C "register" keywords sprinkled everywhere. - Minor whitespace rearrangement of _CRC32 macro. - Add SPDX-License-Identifier to crc32-mips.c and the crypo Makefile. - Update copyright from ImgTec to MIPS Tech, LLC. - Update imgtec.com email addresses to mips.com. - New patch 3 to enable crc32-mips module on r6 configs. Changes in v2: - minor code refactoring as suggested by JamesH which produces a better assembly output for 32-bit builds Cc: Marcin Nowakowski <marcin.nowakow...@mips.com> Cc: Ralf Baechle <r...@linux-mips.org> Cc: Herbert Xu <herb...@gondor.apana.org.au> Cc: "David S. Miller" <da...@davemloft.net> Cc: Paul Burton <paul.bur...@mips.com> Cc: linux-m...@linux-mips.org Cc: linux-crypto@vger.kernel.org James Hogan (1): MIPS: generic: Enable crc32-mips on r6 configs Marcin Nowakowski (2): MIPS: Add crc instruction support flag to elf_hwcap MIPS: crypto: Add crc32 and crc32c hw accelerated module arch/mips/Kconfig | 4 +- arch/mips/Makefile | 3 +- arch/mips/configs/generic/32r6.config | 2 +- arch/mips/configs/generic/64r6.config | 2 +- arch/mips/crypto/Makefile | 6 +- arch/mips/crypto/crc32-mips.c | 346 +++++++++++++++++++++++++++- arch/mips/include/asm/mipsregs.h | 1 +- arch/mips/include/uapi/asm/hwcap.h | 1 +- arch/mips/kernel/cpu-probe.c | 3 +- crypto/Kconfig | 9 +- 10 files changed, 377 insertions(+) create mode 100644 arch/mips/crypto/Makefile create mode 100644 arch/mips/crypto/crc32-mips.c base-commit: 791412dafbbfd860e78983d45cf71db603a82f67 -- git-series 0.9.1
