diff options
Diffstat (limited to 'arch/arc/lib')
-rw-r--r-- | arch/arc/lib/Makefile | 12 | ||||
-rw-r--r-- | arch/arc/lib/memcmp.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/memcpy-700.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/memcpy-archs-unaligned.S | 47 | ||||
-rw-r--r-- | arch/arc/lib/memcpy-archs.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/memset-archs.S | 9 | ||||
-rw-r--r-- | arch/arc/lib/memset.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/strchr-700.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/strcmp-archs.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/strcmp.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/strcpy-700.S | 5 | ||||
-rw-r--r-- | arch/arc/lib/strlen.S | 5 |
12 files changed, 67 insertions, 46 deletions
diff --git a/arch/arc/lib/Makefile b/arch/arc/lib/Makefile index b1656d156097..30158ae69fd4 100644 --- a/arch/arc/lib/Makefile +++ b/arch/arc/lib/Makefile @@ -1,11 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) # -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 as -# published by the Free Software Foundation. lib-y := strchr-700.o strcpy-700.o strlen.o memcmp.o lib-$(CONFIG_ISA_ARCOMPACT) += memcpy-700.o memset.o strcmp.o -lib-$(CONFIG_ISA_ARCV2) += memcpy-archs.o memset-archs.o strcmp-archs.o +lib-$(CONFIG_ISA_ARCV2) += memset-archs.o strcmp-archs.o + +ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS +lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs-unaligned.o +else +lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs.o +endif diff --git a/arch/arc/lib/memcmp.S b/arch/arc/lib/memcmp.S index 21a103044b70..d6dc5e9bc49b 100644 --- a/arch/arc/lib/memcmp.S +++ b/arch/arc/lib/memcmp.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> diff --git a/arch/arc/lib/memcpy-700.S b/arch/arc/lib/memcpy-700.S index ba0beccdaafd..f2e239e219b2 100644 --- a/arch/arc/lib/memcpy-700.S +++ b/arch/arc/lib/memcpy-700.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> diff --git a/arch/arc/lib/memcpy-archs-unaligned.S b/arch/arc/lib/memcpy-archs-unaligned.S new file mode 100644 index 000000000000..28993a73fdde --- /dev/null +++ b/arch/arc/lib/memcpy-archs-unaligned.S @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * ARCv2 memcpy implementation optimized for unaligned memory access using. + * + * Copyright (C) 2019 Synopsys + * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> + */ + +#include <linux/linkage.h> + +#ifdef CONFIG_ARC_HAS_LL64 +# define LOADX(DST,RX) ldd.ab DST, [RX, 8] +# define STOREX(SRC,RX) std.ab SRC, [RX, 8] +# define ZOLSHFT 5 +# define ZOLAND 0x1F +#else +# define LOADX(DST,RX) ld.ab DST, [RX, 4] +# define STOREX(SRC,RX) st.ab SRC, [RX, 4] +# define ZOLSHFT 4 +# define ZOLAND 0xF +#endif + +ENTRY_CFI(memcpy) + mov r3, r0 ; don;t clobber ret val + + lsr.f lp_count, r2, ZOLSHFT + lpnz @.Lcopy32_64bytes + ;; LOOP START + LOADX (r6, r1) + LOADX (r8, r1) + LOADX (r10, r1) + LOADX (r4, r1) + STOREX (r6, r3) + STOREX (r8, r3) + STOREX (r10, r3) + STOREX (r4, r3) +.Lcopy32_64bytes: + + and.f lp_count, r2, ZOLAND ;Last remaining 31 bytes + lpnz @.Lcopyremainingbytes + ;; LOOP START + ldb.ab r5, [r1, 1] + stb.ab r5, [r3, 1] +.Lcopyremainingbytes: + + j [blink] +END_CFI(memcpy) diff --git a/arch/arc/lib/memcpy-archs.S b/arch/arc/lib/memcpy-archs.S index ea14b0bf3116..0051a84f60c0 100644 --- a/arch/arc/lib/memcpy-archs.S +++ b/arch/arc/lib/memcpy-archs.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> diff --git a/arch/arc/lib/memset-archs.S b/arch/arc/lib/memset-archs.S index f230bb7092fd..d2e09fece5bc 100644 --- a/arch/arc/lib/memset-archs.S +++ b/arch/arc/lib/memset-archs.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> @@ -30,10 +27,10 @@ #else -.macro PREALLOC_INSTR +.macro PREALLOC_INSTR reg, off .endm -.macro PREFETCHW_INSTR +.macro PREFETCHW_INSTR reg, off .endm #endif diff --git a/arch/arc/lib/memset.S b/arch/arc/lib/memset.S index cf736f9aa403..9f35960da114 100644 --- a/arch/arc/lib/memset.S +++ b/arch/arc/lib/memset.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> diff --git a/arch/arc/lib/strchr-700.S b/arch/arc/lib/strchr-700.S index 2d300daae2ae..d52e2833f9ed 100644 --- a/arch/arc/lib/strchr-700.S +++ b/arch/arc/lib/strchr-700.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* ARC700 has a relatively long pipeline and branch prediction, so we want diff --git a/arch/arc/lib/strcmp-archs.S b/arch/arc/lib/strcmp-archs.S index fae9e82a09eb..7cffb3717440 100644 --- a/arch/arc/lib/strcmp-archs.S +++ b/arch/arc/lib/strcmp-archs.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> diff --git a/arch/arc/lib/strcmp.S b/arch/arc/lib/strcmp.S index fb20096e5008..b20c98fb3b23 100644 --- a/arch/arc/lib/strcmp.S +++ b/arch/arc/lib/strcmp.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* This is optimized primarily for the ARC700. diff --git a/arch/arc/lib/strcpy-700.S b/arch/arc/lib/strcpy-700.S index 6a6c1553807d..6e2294d13e2f 100644 --- a/arch/arc/lib/strcpy-700.S +++ b/arch/arc/lib/strcpy-700.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ /* If dst and src are 4 byte aligned, copy 8 bytes at a time. diff --git a/arch/arc/lib/strlen.S b/arch/arc/lib/strlen.S index 839b44b8d055..dae428ceb87a 100644 --- a/arch/arc/lib/strlen.S +++ b/arch/arc/lib/strlen.S @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/linkage.h> |