diff options
Diffstat (limited to 'arch/sh/lib64')
| -rw-r--r-- | arch/sh/lib64/Makefile | 17 | ||||
| -rw-r--r-- | arch/sh/lib64/copy_page.S | 89 | ||||
| -rw-r--r-- | arch/sh/lib64/copy_user_memcpy.S | 218 | ||||
| -rw-r--r-- | arch/sh/lib64/memcpy.S | 202 | ||||
| -rw-r--r-- | arch/sh/lib64/memset.S | 92 | ||||
| -rw-r--r-- | arch/sh/lib64/panic.c | 15 | ||||
| -rw-r--r-- | arch/sh/lib64/sdivsi3.S | 136 | ||||
| -rw-r--r-- | arch/sh/lib64/strcpy.S | 98 | ||||
| -rw-r--r-- | arch/sh/lib64/strlen.S | 34 | ||||
| -rw-r--r-- | arch/sh/lib64/udelay.c | 49 | ||||
| -rw-r--r-- | arch/sh/lib64/udivdi3.S | 121 | ||||
| -rw-r--r-- | arch/sh/lib64/udivsi3.S | 60 |
12 files changed, 0 insertions, 1131 deletions
diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile deleted file mode 100644 index 69779ff741df..000000000000 --- a/arch/sh/lib64/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -# -# Makefile for the SH-5 specific library files.. -# -# Copyright (C) 2000, 2001 Paolo Alberelli -# Copyright (C) 2003 - 2008 Paul Mundt -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# - -# Panic should really be compiled as PIC -lib-y := udelay.o panic.o memcpy.o memset.o \ - copy_user_memcpy.o copy_page.o strcpy.o strlen.o - -# Extracted from libgcc -lib-y += udivsi3.o udivdi3.o sdivsi3.o diff --git a/arch/sh/lib64/copy_page.S b/arch/sh/lib64/copy_page.S deleted file mode 100644 index 0ec6fca63b56..000000000000 --- a/arch/sh/lib64/copy_page.S +++ /dev/null @@ -1,89 +0,0 @@ -/* - Copyright 2003 Richard Curnow, SuperH (UK) Ltd. - - This file is subject to the terms and conditions of the GNU General Public - License. See the file "COPYING" in the main directory of this archive - for more details. - - Tight version of mempy for the case of just copying a page. - Prefetch strategy empirically optimised against RTL simulations - of SH5-101 cut2 eval chip with Cayman board DDR memory. - - Parameters: - r2 : destination effective address (start of page) - r3 : source effective address (start of page) - - Always copies 4096 bytes. - - Points to review. - * Currently the prefetch is 4 lines ahead and the alloco is 2 lines ahead. - It seems like the prefetch needs to be at at least 4 lines ahead to get - the data into the cache in time, and the allocos contend with outstanding - prefetches for the same cache set, so it's better to have the numbers - different. - */ - - .section .text..SHmedia32,"ax" - .little - - .balign 8 - .global copy_page -copy_page: - - /* Copy 4096 bytes worth of data from r3 to r2. - Do prefetches 4 lines ahead. - Do alloco 2 lines ahead */ - - pta 1f, tr1 - pta 2f, tr2 - pta 3f, tr3 - ptabs r18, tr0 - -#if 0 - /* TAKum03020 */ - ld.q r3, 0x00, r63 - ld.q r3, 0x20, r63 - ld.q r3, 0x40, r63 - ld.q r3, 0x60, r63 -#endif - alloco r2, 0x00 - synco ! TAKum03020 - alloco r2, 0x20 - synco ! TAKum03020 - - movi 3968, r6 - add r2, r6, r6 - addi r6, 64, r7 - addi r7, 64, r8 - sub r3, r2, r60 - addi r60, 8, r61 - addi r61, 8, r62 - addi r62, 8, r23 - addi r60, 0x80, r22 - -/* Minimal code size. The extra branches inside the loop don't cost much - because they overlap with the time spent waiting for prefetches to - complete. */ -1: -#if 0 - /* TAKum03020 */ - bge/u r2, r6, tr2 ! skip prefetch for last 4 lines - ldx.q r2, r22, r63 ! prefetch 4 lines hence -#endif -2: - bge/u r2, r7, tr3 ! skip alloco for last 2 lines - alloco r2, 0x40 ! alloc destination line 2 lines ahead - synco ! TAKum03020 -3: - ldx.q r2, r60, r36 - ldx.q r2, r61, r37 - ldx.q r2, r62, r38 - ldx.q r2, r23, r39 - st.q r2, 0, r36 - st.q r2, 8, r37 - st.q r2, 16, r38 - st.q r2, 24, r39 - addi r2, 32, r2 - bgt/l r8, r2, tr1 - - blink tr0, r63 ! return diff --git a/arch/sh/lib64/copy_user_memcpy.S b/arch/sh/lib64/copy_user_memcpy.S deleted file mode 100644 index 515f81b00202..000000000000 --- a/arch/sh/lib64/copy_user_memcpy.S +++ /dev/null @@ -1,218 +0,0 @@ -! SPDX-License-Identifier: GPL-2.0 -! -! Fast SH memcpy -! -! by Toshiyasu Morita (tm@netcom.com) -! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut) -! SH5 code Copyright 2002 SuperH Ltd. -! -! Entry: ARG0: destination pointer -! ARG1: source pointer -! ARG2: byte count -! -! Exit: RESULT: destination pointer -! any other registers in the range r0-r7: trashed -! -! Notes: Usually one wants to do small reads and write a longword, but -! unfortunately it is difficult in some cases to concatanate bytes -! into a longword on the SH, so this does a longword read and small -! writes. -! -! This implementation makes two assumptions about how it is called: -! -! 1.: If the byte count is nonzero, the address of the last byte to be -! copied is unsigned greater than the address of the first byte to -! be copied. This could be easily swapped for a signed comparison, -! but the algorithm used needs some comparison. -! -! 2.: When there are two or three bytes in the last word of an 11-or-more -! bytes memory chunk to b copied, the rest of the word can be read -! without side effects. -! This could be easily changed by increasing the minimum size of -! a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2, -! however, this would cost a few extra cyles on average. -! For SHmedia, the assumption is that any quadword can be read in its -! enirety if at least one byte is included in the copy. - -/* Imported into Linux kernel by Richard Curnow. This is used to implement the - __copy_user function in the general case, so it has to be a distinct - function from intra-kernel memcpy to allow for exception fix-ups in the - event that the user pointer is bad somewhere in the copy (e.g. due to - running off the end of the vma). - - Note, this algorithm will be slightly wasteful in the case where the source - and destination pointers are equally aligned, because the stlo/sthi pairs - could then be merged back into single stores. If there are a lot of cache - misses, this is probably offset by the stall lengths on the preloads. - -*/ - -/* NOTE : Prefetches removed and allocos guarded by synco to avoid TAKum03020 - * erratum. The first two prefetches are nop-ed out to avoid upsetting the - * instruction counts used in the jump address calculation. - * */ - - .section .text..SHmedia32,"ax" - .little - .balign 32 - .global copy_user_memcpy - .global copy_user_memcpy_end -copy_user_memcpy: - -#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1 -#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1 -#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1 -#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1 - - nop ! ld.b r3,0,r63 ! TAKum03020 - pta/l Large,tr0 - movi 25,r0 - bgeu/u r4,r0,tr0 - nsb r4,r0 - shlli r0,5,r0 - movi (L1-L0+63*32 + 1) & 0xffff,r1 - sub r1, r0, r0 -L0: ptrel r0,tr0 - add r2,r4,r5 - ptabs r18,tr1 - add r3,r4,r6 - blink tr0,r63 - -/* Rearranged to make cut2 safe */ - .balign 8 -L4_7: /* 4..7 byte memcpy cntd. */ - stlo.l r2, 0, r0 - or r6, r7, r6 - sthi.l r5, -1, r6 - stlo.l r5, -4, r6 - blink tr1,r63 - - .balign 8 -L1: /* 0 byte memcpy */ - nop - blink tr1,r63 - nop - nop - nop - nop - -L2_3: /* 2 or 3 byte memcpy cntd. */ - st.b r5,-1,r6 - blink tr1,r63 - - /* 1 byte memcpy */ - ld.b r3,0,r0 - st.b r2,0,r0 - blink tr1,r63 - -L8_15: /* 8..15 byte memcpy cntd. */ - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - - /* 2 or 3 byte memcpy */ - ld.b r3,0,r0 - nop ! ld.b r2,0,r63 ! TAKum03020 - ld.b r3,1,r1 - st.b r2,0,r0 - pta/l L2_3,tr0 - ld.b r6,-1,r6 - st.b r2,1,r1 - blink tr0, r63 - - /* 4 .. 7 byte memcpy */ - LDUAL (r3, 0, r0, r1) - pta L4_7, tr0 - ldlo.l r6, -4, r7 - or r0, r1, r0 - sthi.l r2, 3, r0 - ldhi.l r6, -1, r6 - blink tr0, r63 - - /* 8 .. 15 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - pta L8_15, tr0 - ldlo.q r6, -8, r7 - or r0, r1, r0 - sthi.q r2, 7, r0 - ldhi.q r6, -1, r6 - blink tr0, r63 - - /* 16 .. 24 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - LDUAQ (r3, 8, r8, r9) - or r0, r1, r0 - sthi.q r2, 7, r0 - or r8, r9, r8 - sthi.q r2, 15, r8 - ldlo.q r6, -8, r7 - ldhi.q r6, -1, r6 - stlo.q r2, 8, r8 - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - -Large: - ! ld.b r2, 0, r63 ! TAKum03020 - pta/l Loop_ua, tr1 - ori r3, -8, r7 - sub r2, r7, r22 - sub r3, r2, r6 - add r2, r4, r5 - ldlo.q r3, 0, r0 - addi r5, -16, r5 - movi 64+8, r27 ! could subtract r7 from that. - stlo.q r2, 0, r0 - sthi.q r2, 7, r0 - ldx.q r22, r6, r0 - bgtu/l r27, r4, tr1 - - addi r5, -48, r27 - pta/l Loop_line, tr0 - addi r6, 64, r36 - addi r6, -24, r19 - addi r6, -16, r20 - addi r6, -8, r21 - -Loop_line: - ! ldx.q r22, r36, r63 ! TAKum03020 - alloco r22, 32 - synco - addi r22, 32, r22 - ldx.q r22, r19, r23 - sthi.q r22, -25, r0 - ldx.q r22, r20, r24 - ldx.q r22, r21, r25 - stlo.q r22, -32, r0 - ldx.q r22, r6, r0 - sthi.q r22, -17, r23 - sthi.q r22, -9, r24 - sthi.q r22, -1, r25 - stlo.q r22, -24, r23 - stlo.q r22, -16, r24 - stlo.q r22, -8, r25 - bgeu r27, r22, tr0 - -Loop_ua: - addi r22, 8, r22 - sthi.q r22, -1, r0 - stlo.q r22, -8, r0 - ldx.q r22, r6, r0 - bgtu/l r5, r22, tr1 - - add r3, r4, r7 - ldlo.q r7, -8, r1 - sthi.q r22, 7, r0 - ldhi.q r7, -1, r7 - ptabs r18,tr1 - stlo.q r22, 0, r0 - or r1, r7, r1 - sthi.q r5, 15, r1 - stlo.q r5, 8, r1 - blink tr1, r63 -copy_user_memcpy_end: - nop diff --git a/arch/sh/lib64/memcpy.S b/arch/sh/lib64/memcpy.S deleted file mode 100644 index 231ea595b39a..000000000000 --- a/arch/sh/lib64/memcpy.S +++ /dev/null @@ -1,202 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* Cloned and hacked for uClibc by Paul Mundt, December 2003 */ -/* Modified by SuperH, Inc. September 2003 */ -! -! Fast SH memcpy -! -! by Toshiyasu Morita (tm@netcom.com) -! hacked by J"orn Rernnecke (joern.rennecke@superh.com) ("o for o-umlaut) -! SH5 code Copyright 2002 SuperH Ltd. -! -! Entry: ARG0: destination pointer -! ARG1: source pointer -! ARG2: byte count -! -! Exit: RESULT: destination pointer -! any other registers in the range r0-r7: trashed -! -! Notes: Usually one wants to do small reads and write a longword, but -! unfortunately it is difficult in some cases to concatanate bytes -! into a longword on the SH, so this does a longword read and small -! writes. -! -! This implementation makes two assumptions about how it is called: -! -! 1.: If the byte count is nonzero, the address of the last byte to be -! copied is unsigned greater than the address of the first byte to -! be copied. This could be easily swapped for a signed comparison, -! but the algorithm used needs some comparison. -! -! 2.: When there are two or three bytes in the last word of an 11-or-more -! bytes memory chunk to b copied, the rest of the word can be read -! without side effects. -! This could be easily changed by increasing the minimum size of -! a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2, -! however, this would cost a few extra cyles on average. -! For SHmedia, the assumption is that any quadword can be read in its -! enirety if at least one byte is included in the copy. -! - - .section .text..SHmedia32,"ax" - .globl memcpy - .type memcpy, @function - .align 5 - -memcpy: - -#define LDUAQ(P,O,D0,D1) ldlo.q P,O,D0; ldhi.q P,O+7,D1 -#define STUAQ(P,O,D0,D1) stlo.q P,O,D0; sthi.q P,O+7,D1 -#define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1 -#define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1 - - ld.b r3,0,r63 - pta/l Large,tr0 - movi 25,r0 - bgeu/u r4,r0,tr0 - nsb r4,r0 - shlli r0,5,r0 - movi (L1-L0+63*32 + 1) & 0xffff,r1 - sub r1, r0, r0 -L0: ptrel r0,tr0 - add r2,r4,r5 - ptabs r18,tr1 - add r3,r4,r6 - blink tr0,r63 - -/* Rearranged to make cut2 safe */ - .balign 8 -L4_7: /* 4..7 byte memcpy cntd. */ - stlo.l r2, 0, r0 - or r6, r7, r6 - sthi.l r5, -1, r6 - stlo.l r5, -4, r6 - blink tr1,r63 - - .balign 8 -L1: /* 0 byte memcpy */ - nop - blink tr1,r63 - nop - nop - nop - nop - -L2_3: /* 2 or 3 byte memcpy cntd. */ - st.b r5,-1,r6 - blink tr1,r63 - - /* 1 byte memcpy */ - ld.b r3,0,r0 - st.b r2,0,r0 - blink tr1,r63 - -L8_15: /* 8..15 byte memcpy cntd. */ - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - - /* 2 or 3 byte memcpy */ - ld.b r3,0,r0 - ld.b r2,0,r63 - ld.b r3,1,r1 - st.b r2,0,r0 - pta/l L2_3,tr0 - ld.b r6,-1,r6 - st.b r2,1,r1 - blink tr0, r63 - - /* 4 .. 7 byte memcpy */ - LDUAL (r3, 0, r0, r1) - pta L4_7, tr0 - ldlo.l r6, -4, r7 - or r0, r1, r0 - sthi.l r2, 3, r0 - ldhi.l r6, -1, r6 - blink tr0, r63 - - /* 8 .. 15 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - pta L8_15, tr0 - ldlo.q r6, -8, r7 - or r0, r1, r0 - sthi.q r2, 7, r0 - ldhi.q r6, -1, r6 - blink tr0, r63 - - /* 16 .. 24 byte memcpy */ - LDUAQ (r3, 0, r0, r1) - LDUAQ (r3, 8, r8, r9) - or r0, r1, r0 - sthi.q r2, 7, r0 - or r8, r9, r8 - sthi.q r2, 15, r8 - ldlo.q r6, -8, r7 - ldhi.q r6, -1, r6 - stlo.q r2, 8, r8 - stlo.q r2, 0, r0 - or r6, r7, r6 - sthi.q r5, -1, r6 - stlo.q r5, -8, r6 - blink tr1,r63 - -Large: - ld.b r2, 0, r63 - pta/l Loop_ua, tr1 - ori r3, -8, r7 - sub r2, r7, r22 - sub r3, r2, r6 - add r2, r4, r5 - ldlo.q r3, 0, r0 - addi r5, -16, r5 - movi 64+8, r27 // could subtract r7 from that. - stlo.q r2, 0, r0 - sthi.q r2, 7, r0 - ldx.q r22, r6, r0 - bgtu/l r27, r4, tr1 - - addi r5, -48, r27 - pta/l Loop_line, tr0 - addi r6, 64, r36 - addi r6, -24, r19 - addi r6, -16, r20 - addi r6, -8, r21 - -Loop_line: - ldx.q r22, r36, r63 - alloco r22, 32 - addi r22, 32, r22 - ldx.q r22, r19, r23 - sthi.q r22, -25, r0 - ldx.q r22, r20, r24 - ldx.q r22, r21, r25 - stlo.q r22, -32, r0 - ldx.q r22, r6, r0 - sthi.q r22, -17, r23 - sthi.q r22, -9, r24 - sthi.q r22, -1, r25 - stlo.q r22, -24, r23 - stlo.q r22, -16, r24 - stlo.q r22, -8, r25 - bgeu r27, r22, tr0 - -Loop_ua: - addi r22, 8, r22 - sthi.q r22, -1, r0 - stlo.q r22, -8, r0 - ldx.q r22, r6, r0 - bgtu/l r5, r22, tr1 - - add r3, r4, r7 - ldlo.q r7, -8, r1 - sthi.q r22, 7, r0 - ldhi.q r7, -1, r7 - ptabs r18,tr1 - stlo.q r22, 0, r0 - or r1, r7, r1 - sthi.q r5, 15, r1 - stlo.q r5, 8, r1 - blink tr1, r63 - - .size memcpy,.-memcpy diff --git a/arch/sh/lib64/memset.S b/arch/sh/lib64/memset.S deleted file mode 100644 index 453aa5f1d263..000000000000 --- a/arch/sh/lib64/memset.S +++ /dev/null @@ -1,92 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* Cloned and hacked for uClibc by Paul Mundt, December 2003 */ -/* Modified by SuperH, Inc. September 2003 */ -! -! Fast SH memset -! -! by Toshiyasu Morita (tm@netcom.com) -! -! SH5 code by J"orn Rennecke (joern.rennecke@superh.com) -! Copyright 2002 SuperH Ltd. -! - -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define SHHI shlld -#define SHLO shlrd -#else -#define SHHI shlrd -#define SHLO shlld -#endif - - .section .text..SHmedia32,"ax" - .globl memset - .type memset, @function - - .align 5 - -memset: - pta/l multiquad, tr0 - andi r2, 7, r22 - ptabs r18, tr2 - mshflo.b r3,r3,r3 - add r4, r22, r23 - mperm.w r3, r63, r3 // Fill pattern now in every byte of r3 - - movi 8, r9 - bgtu/u r23, r9, tr0 // multiquad - - beqi/u r4, 0, tr2 // Return with size 0 - ensures no mem accesses - ldlo.q r2, 0, r7 - shlli r4, 2, r4 - movi -1, r8 - SHHI r8, r4, r8 - SHHI r8, r4, r8 - mcmv r7, r8, r3 - stlo.q r2, 0, r3 - blink tr2, r63 - -multiquad: - pta/l lastquad, tr0 - stlo.q r2, 0, r3 - shlri r23, 3, r24 - add r2, r4, r5 - beqi/u r24, 1, tr0 // lastquad - pta/l loop, tr1 - sub r2, r22, r25 - andi r5, -8, r20 // calculate end address and - addi r20, -7*8, r8 // loop end address; This might overflow, so we need - // to use a different test before we start the loop - bge/u r24, r9, tr1 // loop - st.q r25, 8, r3 - st.q r20, -8, r3 - shlri r24, 1, r24 - beqi/u r24, 1, tr0 // lastquad - st.q r25, 16, r3 - st.q r20, -16, r3 - beqi/u r24, 2, tr0 // lastquad - st.q r25, 24, r3 - st.q r20, -24, r3 -lastquad: - sthi.q r5, -1, r3 - blink tr2,r63 - -loop: -!!! alloco r25, 32 // QQQ comment out for short-term fix to SHUK #3895. - // QQQ commenting out is locically correct, but sub-optimal - // QQQ Sean McGoogan - 4th April 2003. - st.q r25, 8, r3 - st.q r25, 16, r3 - st.q r25, 24, r3 - st.q r25, 32, r3 - addi r25, 32, r25 - bgeu/l r8, r25, tr1 // loop - - st.q r20, -40, r3 - st.q r20, -32, r3 - st.q r20, -24, r3 - st.q r20, -16, r3 - st.q r20, -8, r3 - sthi.q r5, -1, r3 - blink tr2,r63 - - .size memset,.-memset diff --git a/arch/sh/lib64/panic.c b/arch/sh/lib64/panic.c deleted file mode 100644 index 38c954e04f6a..000000000000 --- a/arch/sh/lib64/panic.c +++ /dev/null @@ -1,15 +0,0 @@ -/* - * Copyright (C) 2003 Richard Curnow, SuperH UK Limited - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -void -panic_handler(unsigned long panicPC, unsigned long panicSSR, - unsigned long panicEXPEVT) -{ - /* Never return from the panic handler */ - for (;;) ; -} diff --git a/arch/sh/lib64/sdivsi3.S b/arch/sh/lib64/sdivsi3.S deleted file mode 100644 index b422e2374430..000000000000 --- a/arch/sh/lib64/sdivsi3.S +++ /dev/null @@ -1,136 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - .global __sdivsi3 - .global __sdivsi3_1 - .global __sdivsi3_2 - .section .text..SHmedia32,"ax" - .align 2 - - /* inputs: r4,r5 */ - /* clobbered: r1,r18,r19,r20,r21,r25,tr0 */ - /* result in r0 */ -__sdivsi3: -__sdivsi3_1: - ptb __div_table,tr0 - gettr tr0,r20 - -__sdivsi3_2: - nsb r5, r1 - shlld r5, r1, r25 /* normalize; [-2 ..1, 1..2) in s2.62 */ - shari r25, 58, r21 /* extract 5(6) bit index (s2.4 with hole -1..1) */ - /* bubble */ - ldx.ub r20, r21, r19 /* u0.8 */ - shari r25, 32, r25 /* normalize to s2.30 */ - shlli r21, 1, r21 - muls.l r25, r19, r19 /* s2.38 */ - ldx.w r20, r21, r21 /* s2.14 */ - ptabs r18, tr0 - shari r19, 24, r19 /* truncate to s2.14 */ - sub r21, r19, r19 /* some 11 bit inverse in s1.14 */ - muls.l r19, r19, r21 /* u0.28 */ - sub r63, r1, r1 - addi r1, 92, r1 - muls.l r25, r21, r18 /* s2.58 */ - shlli r19, 45, r19 /* multiply by two and convert to s2.58 */ - /* bubble */ - sub r19, r18, r18 - shari r18, 28, r18 /* some 22 bit inverse in s1.30 */ - muls.l r18, r25, r0 /* s2.60 */ - muls.l r18, r4, r25 /* s32.30 */ - /* bubble */ - shari r0, 16, r19 /* s-16.44 */ - muls.l r19, r18, r19 /* s-16.74 */ - shari r25, 63, r0 - shari r4, 14, r18 /* s19.-14 */ - shari r19, 30, r19 /* s-16.44 */ - muls.l r19, r18, r19 /* s15.30 */ - xor r21, r0, r21 /* You could also use the constant 1 << 27. */ - add r21, r25, r21 - sub r21, r19, r21 - shard r21, r1, r21 - sub r21, r0, r0 - blink tr0, r63 - -/* This table has been generated by divtab.c . -Defects for bias -330: - Max defect: 6.081536e-07 at -1.000000e+00 - Min defect: 2.849516e-08 at 1.030651e+00 - Max 2nd step defect: 9.606539e-12 at -1.000000e+00 - Min 2nd step defect: 0.000000e+00 at 0.000000e+00 - Defect at 1: 1.238659e-07 - Defect at -2: 1.061708e-07 */ - - .balign 2 - .type __div_table,@object - .size __div_table,128 -/* negative division constants */ - .word -16638 - .word -17135 - .word -17737 - .word -18433 - .word -19103 - .word -19751 - .word -20583 - .word -21383 - .word -22343 - .word -23353 - .word -24407 - .word -25582 - .word -26863 - .word -28382 - .word -29965 - .word -31800 -/* negative division factors */ - .byte 66 - .byte 70 - .byte 75 - .byte 81 - .byte 87 - .byte 93 - .byte 101 - .byte 109 - .byte 119 - .byte 130 - .byte 142 - .byte 156 - .byte 172 - .byte 192 - .byte 214 - .byte 241 - .skip 16 - .global __div_table -__div_table: - .skip 16 -/* positive division factors */ - .byte 241 - .byte 214 - .byte 192 - .byte 172 - .byte 156 - .byte 142 - .byte 130 - .byte 119 - .byte 109 - .byte 101 - .byte 93 - .byte 87 - .byte 81 - .byte 75 - .byte 70 - .byte 66 -/* positive division constants */ - .word 31801 - .word 29966 - .word 28383 - .word 26864 - .word 25583 - .word 24408 - .word 23354 - .word 22344 - .word 21384 - .word 20584 - .word 19752 - .word 19104 - .word 18434 - .word 17738 - .word 17136 - .word 16639 diff --git a/arch/sh/lib64/strcpy.S b/arch/sh/lib64/strcpy.S deleted file mode 100644 index b61631e523d4..000000000000 --- a/arch/sh/lib64/strcpy.S +++ /dev/null @@ -1,98 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* Cloned and hacked for uClibc by Paul Mundt, December 2003 */ -/* Modified by SuperH, Inc. September 2003 */ -! Entry: arg0: destination -! arg1: source -! Exit: result: destination -! -! SH5 code Copyright 2002 SuperH Ltd. - -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define SHHI shlld -#define SHLO shlrd -#else -#define SHHI shlrd -#define SHLO shlld -#endif - - .section .text..SHmedia32,"ax" - .globl strcpy - .type strcpy, @function - .align 5 - -strcpy: - - pta/l shortstring,tr1 - ldlo.q r3,0,r4 - ptabs r18,tr4 - shlli r3,3,r7 - addi r2, 8, r0 - mcmpeq.b r4,r63,r6 - SHHI r6,r7,r6 - bnei/u r6,0,tr1 // shortstring - pta/l no_lddst, tr2 - ori r3,-8,r23 - sub r2, r23, r0 - sub r3, r2, r21 - addi r21, 8, r20 - ldx.q r0, r21, r5 - pta/l loop, tr0 - ori r2,-8,r22 - mcmpeq.b r5, r63, r6 - bgt/u r22, r23, tr2 // no_lddst - - // r22 < r23 : Need to do a load from the destination. - // r22 == r23 : Doesn't actually need to load from destination, - // but still can be handled here. - ldlo.q r2, 0, r9 - movi -1, r8 - SHLO r8, r7, r8 - mcmv r4, r8, r9 - stlo.q r2, 0, r9 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring -no_lddst: - // r22 > r23: note that for r22 == r23 the sthi.q would clobber - // bytes before the destination region. - stlo.q r2, 0, r4 - SHHI r4, r7, r4 - sthi.q r0, -1, r4 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 -shortstring: -#if __BYTE_ORDER != __LITTLE_ENDIAN - pta/l shortstring2,tr1 - byterev r4,r4 -#endif -shortstring2: - st.b r0,-8,r4 - andi r4,0xff,r5 - shlri r4,8,r4 - addi r0,1,r0 - bnei/l r5,0,tr1 - blink tr4,r63 // return - - .balign 8 -loop: - stlo.q r0, 0, r5 - ldx.q r0, r20, r4 - addi r0, 16, r0 - sthi.q r0, -9, r5 - mcmpeq.b r4, r63, r6 - bnei/u r6, 0, tr1 // shortstring - ldx.q r0, r21, r5 - stlo.q r0, -8, r4 - sthi.q r0, -1, r4 - mcmpeq.b r5, r63, r6 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring - - .size strcpy,.-strcpy diff --git a/arch/sh/lib64/strlen.S b/arch/sh/lib64/strlen.S deleted file mode 100644 index c00b972f9999..000000000000 --- a/arch/sh/lib64/strlen.S +++ /dev/null @@ -1,34 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Simplistic strlen() implementation for SHmedia. - * - * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> - */ - - .section .text..SHmedia32,"ax" - .globl strlen - .type strlen,@function - - .balign 16 -strlen: - ptabs r18, tr4 - - /* - * Note: We could easily deal with the NULL case here with a simple - * sanity check, though it seems that the behavior we want is to fault - * in the event that r2 == NULL, so we don't bother. - */ -/* beqi r2, 0, tr4 */ ! Sanity check - - movi -1, r0 - pta/l loop, tr0 -loop: - ld.b r2, 0, r1 - addi r2, 1, r2 - addi r0, 1, r0 - bnei/l r1, 0, tr0 - - or r0, r63, r2 - blink tr4, r63 - - .size strlen,.-strlen diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c deleted file mode 100644 index f215b063da70..000000000000 --- a/arch/sh/lib64/udelay.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * arch/sh/lib64/udelay.c - * - * Delay routines, using a pre-computed "loops_per_jiffy" value. - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * Copyright (C) 2003, 2004 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/sched.h> -#include <asm/param.h> - -/* - * Use only for very small delays (< 1 msec). - * - * The active part of our cycle counter is only 32-bits wide, and - * we're treating the difference between two marks as signed. On - * a 1GHz box, that's about 2 seconds. - */ - -void __delay(unsigned long loops) -{ - long long dummy; - __asm__ __volatile__("gettr tr0, %1\n\t" - "pta $+4, tr0\n\t" - "addi %0, -1, %0\n\t" - "bne %0, r63, tr0\n\t" - "ptabs %1, tr0\n\t":"=r"(loops), - "=r"(dummy) - :"0"(loops)); -} - -void __const_udelay(unsigned long xloops) -{ - __delay(xloops * (HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy)); -} - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */ -} - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x00000005); -} diff --git a/arch/sh/lib64/udivdi3.S b/arch/sh/lib64/udivdi3.S deleted file mode 100644 index c032cb157589..000000000000 --- a/arch/sh/lib64/udivdi3.S +++ /dev/null @@ -1,121 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - .section .text..SHmedia32,"ax" - .align 2 - .global __udivdi3 -__udivdi3: - shlri r3,1,r4 - nsb r4,r22 - shlld r3,r22,r6 - shlri r6,49,r5 - movi 0xffffffffffffbaf1,r21 /* .l shift count 17. */ - sub r21,r5,r1 - mmulfx.w r1,r1,r4 - mshflo.w r1,r63,r1 - sub r63,r22,r20 // r63 == 64 % 64 - mmulfx.w r5,r4,r4 - pta large_divisor,tr0 - addi r20,32,r9 - msub.w r1,r4,r1 - madd.w r1,r1,r1 - mmulfx.w r1,r1,r4 - shlri r6,32,r7 - bgt/u r9,r63,tr0 // large_divisor - mmulfx.w r5,r4,r4 - shlri r2,32+14,r19 - addi r22,-31,r0 - msub.w r1,r4,r1 - - mulu.l r1,r7,r4 - addi r1,-3,r5 - mulu.l r5,r19,r5 - sub r63,r4,r4 // Negate to make sure r1 ends up <= 1/r2 - shlri r4,2,r4 /* chop off leading %0000000000000000 001.00000000000 - or, as - the case may be, %0000000000000000 000.11111111111, still */ - muls.l r1,r4,r4 /* leaving at least one sign bit. */ - mulu.l r5,r3,r8 - mshalds.l r1,r21,r1 - shari r4,26,r4 - shlld r8,r0,r8 - add r1,r4,r1 // 31 bit unsigned reciprocal now in r1 (msb equiv. 0.5) - sub r2,r8,r2 - /* Can do second step of 64 : 32 div now, using r1 and the rest in r2. */ - - shlri r2,22,r21 - mulu.l r21,r1,r21 - shlld r5,r0,r8 - addi r20,30-22,r0 - shlrd r21,r0,r21 - mulu.l r21,r3,r5 - add r8,r21,r8 - mcmpgt.l r21,r63,r21 // See Note 1 - addi r20,30,r0 - mshfhi.l r63,r21,r21 - sub r2,r5,r2 - andc r2,r21,r2 - - /* small divisor: need a third divide step */ - mulu.l r2,r1,r7 - ptabs r18,tr0 - addi r2,1,r2 - shlrd r7,r0,r7 - mulu.l r7,r3,r5 - add r8,r7,r8 - sub r2,r3,r2 - cmpgt r2,r5,r5 - add r8,r5,r2 - /* could test r3 here to check for divide by zero. */ - blink tr0,r63 - -large_divisor: - mmulfx.w r5,r4,r4 - shlrd r2,r9,r25 - shlri r25,32,r8 - msub.w r1,r4,r1 - - mulu.l r1,r7,r4 - addi r1,-3,r5 - mulu.l r5,r8,r5 - sub r63,r4,r4 // Negate to make sure r1 ends up <= 1/r2 - shlri r4,2,r4 /* chop off leading %0000000000000000 001.00000000000 - or, as - the case may be, %0000000000000000 000.11111111111, still */ - muls.l r1,r4,r4 /* leaving at least one sign bit. */ - shlri r5,14-1,r8 - mulu.l r8,r7,r5 - mshalds.l r1,r21,r1 - shari r4,26,r4 - add r1,r4,r1 // 31 bit unsigned reciprocal now in r1 (msb equiv. 0.5) - sub r25,r5,r25 - /* Can do second step of 64 : 32 div now, using r1 and the rest in r25. */ - - shlri r25,22,r21 - mulu.l r21,r1,r21 - pta no_lo_adj,tr0 - addi r22,32,r0 - shlri r21,40,r21 - mulu.l r21,r7,r5 - add r8,r21,r8 - shlld r2,r0,r2 - sub r25,r5,r25 - bgtu/u r7,r25,tr0 // no_lo_adj - addi r8,1,r8 - sub r25,r7,r25 -no_lo_adj: - mextr4 r2,r25,r2 - - /* large_divisor: only needs a few adjustments. */ - mulu.l r8,r6,r5 - ptabs r18,tr0 - /* bubble */ - cmpgtu r5,r2,r5 - sub r8,r5,r2 - blink tr0,r63 - -/* Note 1: To shift the result of the second divide stage so that the result - always fits into 32 bits, yet we still reduce the rest sufficiently - would require a lot of instructions to do the shifts just right. Using - the full 64 bit shift result to multiply with the divisor would require - four extra instructions for the upper 32 bits (shift / mulu / shift / sub). - Fortunately, if the upper 32 bits of the shift result are nonzero, we - know that the rest after taking this partial result into account will - fit into 32 bits. So we just clear the upper 32 bits of the rest if the - upper 32 bits of the partial result are nonzero. */ diff --git a/arch/sh/lib64/udivsi3.S b/arch/sh/lib64/udivsi3.S deleted file mode 100644 index e4788fb4fe82..000000000000 --- a/arch/sh/lib64/udivsi3.S +++ /dev/null @@ -1,60 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - .global __udivsi3 - .section .text..SHmedia32,"ax" - .align 2 - -/* - inputs: r4,r5 - clobbered: r18,r19,r20,r21,r22,r25,tr0 - result in r0. - */ -__udivsi3: - addz.l r5,r63,r22 - nsb r22,r0 - shlld r22,r0,r25 - shlri r25,48,r25 - movi 0xffffffffffffbb0c,r20 /* shift count eqiv 76 */ - sub r20,r25,r21 - mmulfx.w r21,r21,r19 - mshflo.w r21,r63,r21 - ptabs r18,tr0 - mmulfx.w r25,r19,r19 - sub r20,r0,r0 - /* bubble */ - msub.w r21,r19,r19 - - /* - * It would be nice for scheduling to do this add to r21 before - * the msub.w, but we need a different value for r19 to keep - * errors under control. - */ - addi r19,-2,r21 - mulu.l r4,r21,r18 - mmulfx.w r19,r19,r19 - shlli r21,15,r21 - shlrd r18,r0,r18 - mulu.l r18,r22,r20 - mmacnfx.wl r25,r19,r21 - /* bubble */ - sub r4,r20,r25 - - mulu.l r25,r21,r19 - addi r0,14,r0 - /* bubble */ - shlrd r19,r0,r19 - mulu.l r19,r22,r20 - add r18,r19,r18 - /* bubble */ - sub.l r25,r20,r25 - - mulu.l r25,r21,r19 - addz.l r25,r63,r25 - sub r25,r22,r25 - shlrd r19,r0,r19 - mulu.l r19,r22,r20 - addi r25,1,r25 - add r18,r19,r18 - - cmpgt r25,r20,r25 - add.l r18,r25,r0 - blink tr0,r63 |