| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| #include <asm/export.h> |
| |
| /* Allow an exception for an insn; exit if we get one. */ |
| #define FIXUP_LDST(x, y) \ |
| 99: x, y; \ |
| .section __ex_table, "a"; \ |
| .long 99b - .; \ |
| ldi $31, $out-99b($31); \ |
| .previous |
| |
| /* |
| * $7: SIMD status |
| * 0: not in simd loop |
| * 1: in simd loop |
| * 2: in simd_u loop |
| * $18: bytes left to copy |
| * |
| */ |
| .globl __copy_user |
| .ent __copy_user |
| __copy_user: |
| .prologue 0 |
| bis $31, $31, $7 |
| #include "deep-copy_template.S" |
| $out: |
| bis $31, $18, $0 |
| beq $7, $return |
| subl $7, 1, $7 |
| beq $7, $restore_simd |
| |
| $restore_simd_u: |
| RESTORE_SIMD_U_REGS |
| br $31, $return |
| |
| $restore_simd: |
| RESTORE_SIMD_REGS |
| |
| $return: |
| ret |
| .end __copy_user |
| EXPORT_SYMBOL(__copy_user) |
