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PCLMULQDQ is used to accelerate the most time-consuming part of GHASH, carry-less multiplication. More information about PCLMULQDQ can be found at: http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/ Because PCLMULQDQ changes XMM state, its usage must be enclosed with kernel_fpu_begin/end, which can be used only in process context, the acceleration is implemented as crypto_ahash. That is, request in soft IRQ context will be defered to the cryptd kernel thread. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
30 lines
1006 B
Makefile
30 lines
1006 B
Makefile
#
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# Arch-specific CryptoAPI modules.
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#
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obj-$(CONFIG_CRYPTO_FPU) += fpu.o
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obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
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obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
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obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
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obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
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obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
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obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
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obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
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obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
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obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
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aes-i586-y := aes-i586-asm_32.o aes_glue.o
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twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
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salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
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aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
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twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
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salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
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aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
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ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
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