linux/arch/x86
Johannes Goetzfried 7efe407672 crypto: serpent - add x86_64/avx assembler implementation
This patch adds a x86_64/avx assembler implementation of the Serpent block
cipher. The implementation is very similar to the sse2 implementation and
processes eight blocks in parallel. Because of the new non-destructive three
operand syntax all move-instructions can be removed and therefore a little
performance increase is provided.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmark results:

Intel Core i5-2500 CPU (fam:6, model:42, step:7)

serpent-avx-x86_64 vs. serpent-sse2-x86_64
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.03x   1.01x   1.01x   1.01x   1.00x   1.00x   1.00x   1.00x   1.00x   1.01x
64B     1.00x   1.00x   1.00x   1.00x   1.00x   0.99x   1.00x   1.01x   1.00x   1.00x
256B    1.05x   1.03x   1.00x   1.02x   1.05x   1.06x   1.05x   1.02x   1.05x   1.02x
1024B   1.05x   1.02x   1.00x   1.02x   1.05x   1.06x   1.05x   1.03x   1.05x   1.02x
8192B   1.05x   1.02x   1.00x   1.02x   1.06x   1.06x   1.04x   1.03x   1.04x   1.02x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.01x   1.00x   1.01x   1.01x   1.00x   1.00x   0.99x   1.03x   1.01x   1.01x
64B     1.00x   1.00x   1.00x   1.00x   1.00x   1.00x   1.00x   1.01x   1.00x   1.02x
256B    1.05x   1.02x   1.00x   1.02x   1.05x   1.02x   1.04x   1.05x   1.05x   1.02x
1024B   1.06x   1.02x   1.00x   1.02x   1.07x   1.06x   1.05x   1.04x   1.05x   1.02x
8192B   1.05x   1.02x   1.00x   1.02x   1.06x   1.06x   1.04x   1.05x   1.05x   1.02x

serpent-avx-x86_64 vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.26x   1.73x
ecb-dec  1.20x   1.64x
cbc-enc  0.33x   0.45x
cbc-dec  1.24x   1.67x
ctr-enc  1.32x   1.76x
ctr-dec  1.32x   1.76x
lrw-enc  1.20x   1.60x
lrw-dec  1.15x   1.54x
xts-enc  1.22x   1.64x
xts-dec  1.17x   1.57x

Signed-off-by: Johannes Goetzfried <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 16:47:43 +08:00
..
boot x86, efi stub: Add .reloc section back into image 2012-06-07 09:52:33 -07:00
configs x86/kconfig: Remove CONFIG_TR=y from the defconfigs 2012-03-24 08:18:03 +01:00
crypto crypto: serpent - add x86_64/avx assembler implementation 2012-06-12 16:47:43 +08:00
ia32 most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set 2012-06-01 12:58:51 -04:00
include/asm Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-06-08 09:26:55 -07:00
kernel Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-06-08 14:59:29 -07:00
kvm KVM: MMU: fix huge page adapted on non-PAE host 2012-05-28 17:41:15 +03:00
lguest lguest: Make sure interrupt is allocated ok by lguest_setup_irq 2012-01-12 15:44:47 +10:30
lib perf/x86: Check user address explicitly in copy_from_user_nmi() 2012-06-06 17:08:04 +02:00
math-emu x86: Rename trap_no to trap_nr in thread_struct 2012-03-13 06:24:09 +01:00
mm x86/mm: Only add extra pages count for the first memory range during pre-allocation early page table space 2012-06-08 11:40:50 +02:00
net bpf jit: Let the x86 jit handle negative offsets 2012-04-03 18:01:41 -04:00
oprofile x86: Factor out TIF_IA32 from 32-bit address space 2012-02-20 12:48:46 -08:00
pci Features: 2012-05-24 16:02:08 -07:00
platform x86/uv: Fix UV2 BAU legacy mode 2012-06-08 11:48:28 +02:00
power x86, kvm: Call restore_sched_clock_state() only after %gs is initialized 2012-04-02 13:53:00 +02:00
realmode x86, realmode: Move end signature into header.S 2012-05-21 00:02:45 -07:00
syscalls syscalls, x86: add __NR_kcmp syscall 2012-05-31 17:49:32 -07:00
tools x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix 2012-06-06 08:54:18 +02:00
um most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set 2012-06-01 12:58:51 -04:00
vdso Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
video x86: Use vga_default_device() when determining whether an fb is primary 2012-04-24 09:50:17 +01:00
xen x86, amd, xen: Avoid NULL pointer paravirt references 2012-05-30 16:15:02 -07:00
.gitignore x86/kprobes: Add arch/x86/tools/insn_sanity to .gitignore 2012-01-16 08:21:59 +01:00
Kbuild x86, realmode: realmode.bin infrastructure 2012-05-08 11:41:48 -07:00
Kconfig x86, efi: Add EFI boot stub documentation 2012-06-01 09:11:41 -07:00
Kconfig.cpu x86: Tighten dependencies of CPU_SUP_*_32 2012-03-08 10:57:34 +01:00
Kconfig.debug Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-01-11 19:13:40 -08:00
Makefile md updates for 3.5 2012-05-23 17:08:40 -07:00
Makefile_32.cpu
Makefile.um um: fix linker script generation 2012-04-09 13:59:00 -04:00