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File _service:tar_scm:0005-AArch64-Add-support-for-MOPS-memcpy-memmove-memset.patch of Package glibc
From d8a2b56b4fdf39488eb8a94f8b1064e262708b6f Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra <wilco.dijkstra@arm.com> Date: Tue, 17 Oct 2023 16:54:21 +0100 Subject: [PATCH 05/26] AArch64: Add support for MOPS memcpy/memmove/memset Add support for MOPS in cpu_features and INIT_ARCH. Add ifuncs using MOPS for memcpy, memmove and memset (use .inst for now so it works with all binutils versions without needing complex configure and conditional compilation). Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com> (cherry picked from commit 2bd00179885928fd95fcabfafc50e7b5c6e660d2) --- sysdeps/aarch64/multiarch/Makefile | 3 ++ sysdeps/aarch64/multiarch/ifunc-impl-list.c | 3 ++ sysdeps/aarch64/multiarch/init-arch.h | 4 +- sysdeps/aarch64/multiarch/memcpy.c | 4 ++ sysdeps/aarch64/multiarch/memcpy_mops.S | 39 +++++++++++++++++++ sysdeps/aarch64/multiarch/memmove.c | 4 ++ sysdeps/aarch64/multiarch/memmove_mops.S | 39 +++++++++++++++++++ sysdeps/aarch64/multiarch/memset.c | 4 ++ sysdeps/aarch64/multiarch/memset_mops.S | 38 ++++++++++++++++++ .../unix/sysv/linux/aarch64/cpu-features.c | 3 ++ .../unix/sysv/linux/aarch64/cpu-features.h | 1 + 11 files changed, 141 insertions(+), 1 deletion(-) create mode 100644 sysdeps/aarch64/multiarch/memcpy_mops.S create mode 100644 sysdeps/aarch64/multiarch/memmove_mops.S create mode 100644 sysdeps/aarch64/multiarch/memset_mops.S diff --git a/sysdeps/aarch64/multiarch/Makefile b/sysdeps/aarch64/multiarch/Makefile index 223777d94e..e6099548b9 100644 --- a/sysdeps/aarch64/multiarch/Makefile +++ b/sysdeps/aarch64/multiarch/Makefile @@ -5,14 +5,17 @@ sysdep_routines += \ memcpy_a64fx \ memcpy_falkor \ memcpy_generic \ + memcpy_mops \ memcpy_sve \ memcpy_thunderx \ memcpy_thunderx2 \ + memmove_mops \ memset_a64fx \ memset_emag \ memset_falkor \ memset_generic \ memset_kunpeng \ + memset_mops \ strlen_asimd \ strlen_mte \ # sysdep_routines diff --git a/sysdeps/aarch64/multiarch/ifunc-impl-list.c b/sysdeps/aarch64/multiarch/ifunc-impl-list.c index d274f01fdb..da7f115377 100644 --- a/sysdeps/aarch64/multiarch/ifunc-impl-list.c +++ b/sysdeps/aarch64/multiarch/ifunc-impl-list.c @@ -41,6 +41,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, memcpy, sve, __memcpy_a64fx) IFUNC_IMPL_ADD (array, i, memcpy, sve, __memcpy_sve) #endif + IFUNC_IMPL_ADD (array, i, memcpy, mops, __memcpy_mops) IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_generic)) IFUNC_IMPL (i, name, memmove, IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_thunderx) @@ -50,6 +51,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, memmove, sve, __memmove_a64fx) IFUNC_IMPL_ADD (array, i, memmove, sve, __memmove_sve) #endif + IFUNC_IMPL_ADD (array, i, memmove, mops, __memmove_mops) IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_generic)) IFUNC_IMPL (i, name, memset, /* Enable this on non-falkor processors too so that other cores @@ -60,6 +62,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, #if HAVE_AARCH64_SVE_ASM IFUNC_IMPL_ADD (array, i, memset, sve && zva_size == 256, __memset_a64fx) #endif + IFUNC_IMPL_ADD (array, i, memset, mops, __memset_mops) IFUNC_IMPL_ADD (array, i, memset, 1, __memset_generic)) IFUNC_IMPL (i, name, memchr, IFUNC_IMPL_ADD (array, i, memchr, !mte, __memchr_nosimd) diff --git a/sysdeps/aarch64/multiarch/init-arch.h b/sysdeps/aarch64/multiarch/init-arch.h index 6de081e381..e23e6ff290 100644 --- a/sysdeps/aarch64/multiarch/init-arch.h +++ b/sysdeps/aarch64/multiarch/init-arch.h @@ -35,4 +35,6 @@ bool __attribute__((unused)) mte = \ MTE_ENABLED (); \ bool __attribute__((unused)) sve = \ - GLRO(dl_aarch64_cpu_features).sve; + GLRO(dl_aarch64_cpu_features).sve; \ + bool __attribute__((unused)) mops = \ + GLRO(dl_aarch64_cpu_features).mops; diff --git a/sysdeps/aarch64/multiarch/memcpy.c b/sysdeps/aarch64/multiarch/memcpy.c index 3aae915c5f..9aace954cb 100644 --- a/sysdeps/aarch64/multiarch/memcpy.c +++ b/sysdeps/aarch64/multiarch/memcpy.c @@ -34,12 +34,16 @@ extern __typeof (__redirect_memcpy) __memcpy_thunderx2 attribute_hidden; extern __typeof (__redirect_memcpy) __memcpy_falkor attribute_hidden; extern __typeof (__redirect_memcpy) __memcpy_a64fx attribute_hidden; extern __typeof (__redirect_memcpy) __memcpy_sve attribute_hidden; +extern __typeof (__redirect_memcpy) __memcpy_mops attribute_hidden; static inline __typeof (__redirect_memcpy) * select_memcpy_ifunc (void) { INIT_ARCH (); + if (mops) + return __memcpy_mops; + if (sve && HAVE_AARCH64_SVE_ASM) { if (IS_A64FX (midr)) diff --git a/sysdeps/aarch64/multiarch/memcpy_mops.S b/sysdeps/aarch64/multiarch/memcpy_mops.S new file mode 100644 index 0000000000..4685629664 --- /dev/null +++ b/sysdeps/aarch64/multiarch/memcpy_mops.S @@ -0,0 +1,39 @@ +/* Optimized memcpy for MOPS. + Copyright (C) 2023 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 + <https://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +/* Assumptions: + * + * AArch64, MOPS. + * + */ + +ENTRY (__memcpy_mops) + PTR_ARG (0) + PTR_ARG (1) + SIZE_ARG (2) + + mov x3, x0 + .inst 0x19010443 /* cpyfp [x3]!, [x1]!, x2! */ + .inst 0x19410443 /* cpyfm [x3]!, [x1]!, x2! */ + .inst 0x19810443 /* cpyfe [x3]!, [x1]!, x2! */ + ret + +END (__memcpy_mops) diff --git a/sysdeps/aarch64/multiarch/memmove.c b/sysdeps/aarch64/multiarch/memmove.c index 312f90f111..fd346e7b73 100644 --- a/sysdeps/aarch64/multiarch/memmove.c +++ b/sysdeps/aarch64/multiarch/memmove.c @@ -34,12 +34,16 @@ extern __typeof (__redirect_memmove) __memmove_thunderx2 attribute_hidden; extern __typeof (__redirect_memmove) __memmove_falkor attribute_hidden; extern __typeof (__redirect_memmove) __memmove_a64fx attribute_hidden; extern __typeof (__redirect_memmove) __memmove_sve attribute_hidden; +extern __typeof (__redirect_memmove) __memmove_mops attribute_hidden; static inline __typeof (__redirect_memmove) * select_memmove_ifunc (void) { INIT_ARCH (); + if (mops) + return __memmove_mops; + if (sve && HAVE_AARCH64_SVE_ASM) { if (IS_A64FX (midr)) diff --git a/sysdeps/aarch64/multiarch/memmove_mops.S b/sysdeps/aarch64/multiarch/memmove_mops.S new file mode 100644 index 0000000000..c5ea66be3a --- /dev/null +++ b/sysdeps/aarch64/multiarch/memmove_mops.S @@ -0,0 +1,39 @@ +/* Optimized memmove for MOPS. + Copyright (C) 2023 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 + <https://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +/* Assumptions: + * + * AArch64, MOPS. + * + */ + +ENTRY (__memmove_mops) + PTR_ARG (0) + PTR_ARG (1) + SIZE_ARG (2) + + mov x3, x0 + .inst 0x1d010443 /* cpyp [x3]!, [x1]!, x2! */ + .inst 0x1d410443 /* cpym [x3]!, [x1]!, x2! */ + .inst 0x1d810443 /* cpye [x3]!, [x1]!, x2! */ + ret + +END (__memmove_mops) diff --git a/sysdeps/aarch64/multiarch/memset.c b/sysdeps/aarch64/multiarch/memset.c index f9c81d3d8e..23fc66e158 100644 --- a/sysdeps/aarch64/multiarch/memset.c +++ b/sysdeps/aarch64/multiarch/memset.c @@ -33,12 +33,16 @@ extern __typeof (__redirect_memset) __memset_emag attribute_hidden; extern __typeof (__redirect_memset) __memset_kunpeng attribute_hidden; extern __typeof (__redirect_memset) __memset_a64fx attribute_hidden; extern __typeof (__redirect_memset) __memset_generic attribute_hidden; +extern __typeof (__redirect_memset) __memset_mops attribute_hidden; static inline __typeof (__redirect_memset) * select_memset_ifunc (void) { INIT_ARCH (); + if (mops) + return __memset_mops; + if (sve && HAVE_AARCH64_SVE_ASM) { if (IS_A64FX (midr) && zva_size == 256) diff --git a/sysdeps/aarch64/multiarch/memset_mops.S b/sysdeps/aarch64/multiarch/memset_mops.S new file mode 100644 index 0000000000..ca820b8636 --- /dev/null +++ b/sysdeps/aarch64/multiarch/memset_mops.S @@ -0,0 +1,38 @@ +/* Optimized memset for MOPS. + Copyright (C) 2023 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 + <https://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +/* Assumptions: + * + * AArch64, MOPS. + * + */ + +ENTRY (__memset_mops) + PTR_ARG (0) + SIZE_ARG (2) + + mov x3, x0 + .inst 0x19c10443 /* setp [x3]!, x2!, x1 */ + .inst 0x19c14443 /* setm [x3]!, x2!, x1 */ + .inst 0x19c18443 /* sete [x3]!, x2!, x1 */ + ret + +END (__memset_mops) diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c index dc09c1c827..233d5b2407 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c @@ -120,4 +120,7 @@ init_cpu_features (struct cpu_features *cpu_features) /* Check if SVE is supported. */ cpu_features->sve = GLRO (dl_hwcap) & HWCAP_SVE; + + /* Check if MOPS is supported. */ + cpu_features->mops = GLRO (dl_hwcap2) & HWCAP2_MOPS; } diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h index d67d286b53..40b709677d 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h @@ -76,6 +76,7 @@ struct cpu_features /* Currently, the GLIBC memory tagging tunable only defines 8 bits. */ uint8_t mte_state; bool sve; + bool mops; }; #endif /* _CPU_FEATURES_AARCH64_H */ -- 2.33.0
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