glibc/sysdeps
Rajalakshmi Srinivasaraghavan 63da5cd4a0 powerpc: Replace lxvd2x/stxvd2x with lvx/stvx in P7's memcpy/memmove
POWER9 DD2.1 and earlier has an issue where some cache inhibited
vector load traps to the kernel, causing a performance degradation.  To
handle this in memcpy and memmove, lvx/stvx is used for aligned
addresses instead of lxvd2x/stxvd2x.

Reference: https://patchwork.ozlabs.org/patch/814059/

	* sysdeps/powerpc/powerpc64/power7/memcpy.S: Replace
	lxvd2x/stxvd2x with lvx/stvx.
	* sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-10-25 13:14:30 -02:00
..
aarch64 aarch64: Add missing math Makefile for recent commit 2017-10-23 15:34:36 +01:00
alpha Use libm_alias_double for dbl-64 fma. 2017-10-04 20:32:48 +00:00
arm Update ARM libm-test-ulps. 2017-10-05 22:17:30 +00:00
generic Add _Float128 function aliases. 2017-10-18 17:37:18 +00:00
gnu
hppa ld.so: Replace (&bootstrap_map) with BOOTSTRAP_MAP 2017-10-03 01:55:12 -07:00
i386 i386: Replace assembly versions of e_powf with generic e_powf.c 2017-10-22 08:12:41 -07:00
ia64 Add bits/floatn.h defines for more _FloatN / _FloatNx types. 2017-10-20 21:42:51 +00:00
ieee754 Add bits/floatn.h defines for more _FloatN / _FloatNx types. 2017-10-20 21:42:51 +00:00
init_array
m68k m68k: Update elf_machine_load_address for static PIE 2017-10-20 03:36:47 -07:00
mach Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
microblaze
mips Replace "if if " with "if " in comments 2017-10-25 08:05:51 -07:00
nios2
nptl Remove add-ons mechanism. 2017-10-05 15:58:13 +00:00
posix sysconf: Fix missing definition of UIO_MAXIOV on Linux [BZ #22321] 2017-10-20 04:10:15 +02:00
powerpc powerpc: Replace lxvd2x/stxvd2x with lvx/stvx in P7's memcpy/memmove 2017-10-25 13:14:30 -02:00
pthread
s390 S390: Regenerate ULPs 2017-10-05 12:50:49 +02:00
sh
sparc Fix TLS relocations against local symbols on powerpc32, sparc32 and sparc64 2017-10-13 16:14:16 -03:00
tile Remove ancient __signbit inlines 2017-09-28 19:52:13 +01:00
unix posix: Do not use WNOHANG in waitpid call for Linux posix_spawn 2017-10-23 13:31:26 -02:00
wordsize-32
wordsize-64
x86 Update x86 fix-fp-int-compare-invalid.h for GCC 8. 2017-10-24 00:33:08 +00:00
x86_64 Replace "if if " with "if " in comments 2017-10-25 08:05:51 -07:00