diff options
Diffstat (limited to 'arch/unicore32/lib/copy_to_user.S')
-rw-r--r-- | arch/unicore32/lib/copy_to_user.S | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/arch/unicore32/lib/copy_to_user.S b/arch/unicore32/lib/copy_to_user.S deleted file mode 100644 index c867f08f89ce..000000000000 --- a/arch/unicore32/lib/copy_to_user.S +++ /dev/null @@ -1,93 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/lib/copy_to_user.S - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - */ - -#include <linux/linkage.h> -#include <asm/assembler.h> - -/* - * Prototype: - * - * size_t raw_copy_to_user(void *to, const void *from, size_t n) - * - * Purpose: - * - * copy a block to user memory from kernel memory - * - * Params: - * - * to = user memory - * from = kernel memory - * n = number of bytes to copy - * - * Return value: - * - * Number of bytes NOT copied. - */ - - .macro ldr1w ptr reg abort - ldw.w \reg, [\ptr]+, #4 - .endm - - .macro ldr4w ptr reg1 reg2 reg3 reg4 abort - ldm.w (\reg1, \reg2, \reg3, \reg4), [\ptr]+ - .endm - - .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort - ldm.w (\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8), [\ptr]+ - .endm - - .macro ldr1b ptr reg cond=al abort - notcond \cond, .+8 - ldb.w \reg, [\ptr]+, #1 - .endm - - .macro str1w ptr reg abort - strusr \reg, \ptr, 4, abort=\abort - .endm - - .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort -100: stm.w (\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8), [\ptr]+ - - .pushsection __ex_table, "a" - .long 100b, \abort - .popsection - .endm - - .macro str1b ptr reg cond=al abort - strusr \reg, \ptr, 1, \cond, abort=\abort - .endm - - .macro enter - mov r3, #0 - stm.w (r0, r2, r3), [sp-] - .endm - - .macro exit - add sp, sp, #8 - ldm.w (r0), [sp]+ - mov pc, lr - .endm - - .text - -WEAK(raw_copy_to_user) - -#include "copy_template.S" - -ENDPROC(raw_copy_to_user) - - .pushsection .fixup,"ax" - .align 0 - copy_abort_preamble - ldm.w (r1, r2, r3), [sp]+ - sub r0, r0, r1 - rsub r0, r0, r2 - copy_abort_end - .popsection - |