/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 ARM Ltd. */ /* * Copy a page from src to dest (both are page aligned) * * Parameters: * x0 - dest * x1 - src */ ldp1 x2, x3, x1, #0 ldp1 x4, x5, x1, #16 ldp1 x6, x7, x1, #32 ldp1 x8, x9, x1, #48 ldp1 x10, x11, x1, #64 ldp1 x12, x13, x1, #80 ldp1 x14, x15, x1, #96 ldp1 x16, x17, x1, #112 add x0, x0, #256 add x1, x1, #128 1: tst x0, #(PAGE_SIZE - 1) stnp x2, x3, [x0, #-256] ldp1 x2, x3, x1, #0 stnp x4, x5, [x0, #16 - 256] ldp1 x4, x5, x1, #16 stnp x6, x7, [x0, #32 - 256] ldp1 x6, x7, x1, #32 stnp x8, x9, [x0, #48 - 256] ldp1 x8, x9, x1, #48 stnp x10, x11, [x0, #64 - 256] ldp1 x10, x11, x1, #64 stnp x12, x13, [x0, #80 - 256] ldp1 x12, x13, x1, #80 stnp x14, x15, [x0, #96 - 256] ldp1 x14, x15, x1, #96 stnp x16, x17, [x0, #112 - 256] ldp1 x16, x17, x1, #112 add x0, x0, #128 add x1, x1, #128 b.ne 1b stnp x2, x3, [x0, #-256] stnp x4, x5, [x0, #16 - 256] stnp x6, x7, [x0, #32 - 256] stnp x8, x9, [x0, #48 - 256] stnp x10, x11, [x0, #64 - 256] stnp x12, x13, [x0, #80 - 256] stnp x14, x15, [x0, #96 - 256] stnp x16, x17, [x0, #112 - 256]