diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/cpu_relax.S | 1 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/cpu_relax.c | 1 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/cpu_relax.S | 67 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/cpu_relax.c | 38 |
5 files changed, 44 insertions, 68 deletions
@@ -1,5 +1,10 @@ 2017-12-01 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * sysdeps/sparc/sparc64/cpu_relax.c: New file. + * sysdeps/sparc/sparc32/sparcv9/cpu_relax.c: Likewise. + * sysdeps/sparc/sparc64/cpu_relax.S: Remove file. + * sysdeps/sparc/sparc32/sparcv9/cpu_relax.S: Likewise. + * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_nearbyintf-generic and s_nearbyint-generic. diff --git a/sysdeps/sparc/sparc32/sparcv9/cpu_relax.S b/sysdeps/sparc/sparc32/sparcv9/cpu_relax.S deleted file mode 100644 index 41a5e72b25..0000000000 --- a/sysdeps/sparc/sparc32/sparcv9/cpu_relax.S +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/sparc/sparc64/cpu_relax.S> diff --git a/sysdeps/sparc/sparc32/sparcv9/cpu_relax.c b/sysdeps/sparc/sparc32/sparcv9/cpu_relax.c new file mode 100644 index 0000000000..1670cf6558 --- /dev/null +++ b/sysdeps/sparc/sparc32/sparcv9/cpu_relax.c @@ -0,0 +1 @@ +#include <sysdeps/sparc/sparc64/cpu_relax.c> diff --git a/sysdeps/sparc/sparc64/cpu_relax.S b/sysdeps/sparc/sparc64/cpu_relax.S deleted file mode 100644 index 5271164607..0000000000 --- a/sysdeps/sparc/sparc64/cpu_relax.S +++ /dev/null @@ -1,67 +0,0 @@ -/* CPU strand yielding for busy loops. - Copyright (C) 2012-2017 Free Software Foundation, Inc. - Contributed by David S. Miller (davem@davemloft.net) - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - - .text -__cpu_relax_generic: - rd %ccr, %g0 - rd %ccr, %g0 - rd %ccr, %g0 - retl - nop - .size __cpu_relax_generic,.-__cpu_relax_generic - -__cpu_relax_pause: - wr %g0, 128, %asr27 - retl - nop - .size __cpu_relax_pause,.-__cpu_relax_pause - -ENTRY(__cpu_relax) - .type __cpu_relax, @gnu_indirect_function -# ifdef SHARED - SETUP_PIC_REG_LEAF(o3, o5) -# endif - set HWCAP_SPARC_PAUSE, %o1 - andcc %o0, %o1, %g0 - be 1f - nop -# ifdef SHARED - sethi %gdop_hix22(__cpu_relax_pause), %o1 - xor %o1, %gdop_lox10(__cpu_relax_pause), %o1 -# else - set __cpu_relax_pause, %o1 -# endif - ba 10f - nop -1: -# ifdef SHARED - sethi %gdop_hix22(__cpu_relax_generic), %o1 - xor %o1, %gdop_lox10(__cpu_relax_generic), %o1 -# else - set __cpu_relax_generic, %o1 -# endif -10: -# ifdef SHARED - add %o3, %o1, %o1 -# endif - retl - mov %o1, %o0 -END(__cpu_relax) diff --git a/sysdeps/sparc/sparc64/cpu_relax.c b/sysdeps/sparc/sparc64/cpu_relax.c new file mode 100644 index 0000000000..7e01186c2c --- /dev/null +++ b/sysdeps/sparc/sparc64/cpu_relax.c @@ -0,0 +1,38 @@ +/* CPU strand yielding for busy loops. Linux/sparc64 version. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sparc-ifunc.h> + +static void +__cpu_relax_generic (void) +{ + asm volatile ("rd %ccr, %g0;" + "rd %ccr, %g0;" + "rd %ccr, %g0"); +} + +static void +__cpu_relax_pause (void) +{ + asm volatile ("wr %g0, 128, %asr27"); +} + +sparc_libc_ifunc (__cpu_relax, + hwcap & HWCAP_SPARC_PAUSE + ? __cpu_relax_pause + : __cpu_relax_generic) |