1/*
2 * Copyright (c) 2003-2004 Romain Dolbeau
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "libavutil/attributes.h"
22#include "libavcodec/videodsp.h"
23
24static void prefetch_ppc(uint8_t *mem, ptrdiff_t stride, int h)
25{
26    register const uint8_t *p = mem;
27    do {
28        __asm__ volatile ("dcbt 0,%0" : : "r" (p));
29        p += stride;
30    } while(--h);
31}
32
33av_cold void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc)
34{
35    ctx->prefetch = prefetch_ppc;
36}
37