On 5/15/2016 1:13 PM, Jeffrey Walton wrote: > Hi Everyone, > > It appears defines like HWCAP_CRC32 fall under the purview of the > kernel. Confer, http://www.google.com/search?q="HWCAP_CRC32"; (my > apologies if this is not the case). > > We use getauxval(AT_HWCAP) and HWCAP_CRC32 for runtime detection of > processor support for CRC. However, I can't find a similar symbol in > the context of the crypto instructions. Confer, > http://www.google.com/search?q="HWCAP_CRYPTO";. > > My question is, what are the equivalent defines for Crypto features? > Take a look at arch/arm64/include/uapi/asm/hwcap.h #define HWCAP_AES (1 << 3) #define HWCAP_PMULL (1 << 4) #define HWCAP_SHA1 (1 << 5) #define HWCAP_SHA2 (1 << 6) Horia > Thanks in advance. > > ***** > > Below is from a 64-bit LeMaker HiKey > (http://www.lemaker.org/product-hikey-index.html). It responds to > getauxval(AT_HWCAP) and HWCAP_CRC32. > > $ cat /proc/cpuinfo > Processor : AArch64 Processor rev 3 (aarch64) > processor : 0 > ... > processor : 7 > Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 > CPU implementer : 0x41 > CPU architecture: AArch64 > CPU variant : 0x0 > CPU part : 0xd03 > CPU revision : 3 > > Hardware : HiKey Development Board -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
