forked from Minki/linux
189046981b
On PPC_8xx, CRC32_SLICEBY4 is more efficient (almost twice) than CRC32_SLICEBY8,
as shown below:
With CRC32_SLICEBY8:
[ 1.109204] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
[ 1.114401] crc32: self tests passed, processed 225944 bytes in 15118910 nsec
[ 1.130655] crc32c: CRC_LE_BITS = 64
[ 1.134235] crc32c: self tests passed, processed 225944 bytes in 4479879 nsec
With CRC32_SLICEBY4:
[ 1.097129] crc32: CRC_LE_BITS = 32, CRC_BE BITS = 32
[ 1.101878] crc32: self tests passed, processed 225944 bytes in 8616242 nsec
[ 1.116298] crc32c: CRC_LE_BITS = 32
[ 1.119607] crc32c: self tests passed, processed 225944 bytes in 3289576 nsec
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
76 lines
1.8 KiB
Plaintext
76 lines
1.8 KiB
Plaintext
CONFIG_PPC_8xx=y
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CONFIG_EXPERIMENTAL=y
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# CONFIG_SWAP is not set
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CONFIG_SYSVIPC=y
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CONFIG_LOG_BUF_SHIFT=14
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# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
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CONFIG_EXPERT=y
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# CONFIG_SYSCTL_SYSCALL is not set
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# CONFIG_ELF_CORE is not set
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# CONFIG_BASE_FULL is not set
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# CONFIG_FUTEX is not set
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# CONFIG_VM_EVENT_COUNTERS is not set
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# CONFIG_BLK_DEV_BSG is not set
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# CONFIG_IOSCHED_CFQ is not set
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CONFIG_PPC_EP88XC=y
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CONFIG_8xx_COPYBACK=y
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CONFIG_NO_HZ=y
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CONFIG_HIGH_RES_TIMERS=y
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CONFIG_HZ_100=y
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CONFIG_8XX_MINIMAL_FPEMU=y
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CONFIG_SPARSE_IRQ=y
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# CONFIG_SECCOMP is not set
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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CONFIG_INET=y
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CONFIG_IP_MULTICAST=y
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CONFIG_IP_PNP=y
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CONFIG_SYN_COOKIES=y
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# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
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# CONFIG_INET_XFRM_MODE_TUNNEL is not set
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# CONFIG_INET_XFRM_MODE_BEET is not set
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# CONFIG_INET_LRO is not set
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# CONFIG_IPV6 is not set
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CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
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# CONFIG_FW_LOADER is not set
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CONFIG_MTD=y
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CONFIG_MTD_CHAR=y
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CONFIG_MTD_BLOCK=y
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CONFIG_MTD_CFI=y
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CONFIG_MTD_CFI_AMDSTD=y
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CONFIG_MTD_PHYSMAP_OF=y
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CONFIG_PROC_DEVICETREE=y
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# CONFIG_BLK_DEV is not set
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# CONFIG_MISC_DEVICES is not set
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CONFIG_NETDEVICES=y
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CONFIG_LXT_PHY=y
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CONFIG_NET_ETHERNET=y
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CONFIG_FS_ENET=y
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# CONFIG_FS_ENET_HAS_SCC is not set
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# CONFIG_NETDEV_1000 is not set
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# CONFIG_NETDEV_10000 is not set
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# CONFIG_INPUT is not set
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# CONFIG_SERIO is not set
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# CONFIG_VT is not set
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CONFIG_SERIAL_CPM=y
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CONFIG_SERIAL_CPM_CONSOLE=y
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# CONFIG_LEGACY_PTYS is not set
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CONFIG_GEN_RTC=y
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# CONFIG_HWMON is not set
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# CONFIG_USB_SUPPORT is not set
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# CONFIG_DNOTIFY is not set
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CONFIG_TMPFS=y
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CONFIG_CRAMFS=y
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CONFIG_NFS_FS=y
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CONFIG_NFS_V3=y
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CONFIG_ROOT_NFS=y
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CONFIG_PARTITION_ADVANCED=y
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# CONFIG_CRC32 is not set
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CONFIG_MAGIC_SYSRQ=y
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CONFIG_DEBUG_KERNEL=y
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CONFIG_DETECT_HUNG_TASK=y
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CONFIG_DEBUG_INFO=y
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# CONFIG_RCU_CPU_STALL_DETECTOR is not set
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CONFIG_CRC32_SLICEBY4=y
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