MIPS: crypto: Add crc32 and crc32c hw accelerated module
This module registers crc32 and crc32c algorithms that use the
optional CRC32[bhwd] and CRC32C[bhwd] instructions in MIPSr6 cores.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@mips.com>
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-mips@linux-mips.org
Cc: linux-crypto@vger.kernel.org
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Patchwork: https://patchwork.linux-mips.org/patch/18601/
[jhogan@kernel.org: Add CRYPTO_ALG_OPTIONAL_KEY flag on Eric Biggers'
suggestion, due to commit a208fa8f3303 ("crypto: hash - annotate
algorithms taking optional key") in v4.16-rc1]
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index d1ca839..44a6ed5 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -222,6 +222,8 @@
xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
+toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
+cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
#
# Firmware support
@@ -330,6 +332,7 @@
# See arch/mips/Kbuild for content of core part of the kernel
core-y += arch/mips/
+drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
# suspend and hibernation support