From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 35D6440C45 for ; Wed, 29 Dec 2021 10:03:03 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 5AAC268AEE9; Wed, 29 Dec 2021 12:03:01 +0200 (EET) Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 7DF2268AECC for ; Wed, 29 Dec 2021 12:02:53 +0200 (EET) Received: from localhost (unknown [36.33.26.144]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxaZRLMsxhsicFAA--.3107S3; Wed, 29 Dec 2021 18:02:51 +0800 (CST) From: Hao Chen To: ffmpeg-devel@ffmpeg.org Date: Wed, 29 Dec 2021 18:02:46 +0800 Message-Id: <20211229100246.31363-3-chenhao@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20211229100246.31363-2-chenhao@loongson.cn> References: <20211229100246.31363-2-chenhao@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9DxaZRLMsxhsicFAA--.3107S3 X-Coremail-Antispam: 1UD129KBjvJXoWxXF43Wr4UAF1kur1DXFWxXrb_yoWrGFWrpa y7ur17Jw4kWrZFk397J3s8XF45tF93ury2qF13tw18CrWFvw1fXr92yr9rua4DXa1DAF1S qws3C3W7JF1rXw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkFb7Iv0xC_Kw4lb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26F4UJVW0owA2z4x0Y4 vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xv F2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r4j6F 4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY02Avz4vE14v_Gw1l42xK 82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGw C20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1Y6r17MIIYrxkI7VAKI48J MIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMI IF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E 87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07brVysUUUUU= X-CM-SenderInfo: hfkh0xtdr6z05rqj20fqof0/ Subject: [FFmpeg-devel] [PATCH v2 3/3] avcodec: [loongarch] Optimize prefetch with loongarch. X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: gxw Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: From: gxw ./ffmpeg -i ../1_h264_1080p_30fps_3Mbps.mp4 -f rawvideo -y /dev/null -an before:296 after :308 --- libavcodec/loongarch/Makefile | 1 + libavcodec/loongarch/videodsp_init.c | 45 ++++++++++++++++++++++++++++ libavcodec/videodsp.c | 2 ++ libavcodec/videodsp.h | 1 + 4 files changed, 49 insertions(+) create mode 100644 libavcodec/loongarch/videodsp_init.c diff --git a/libavcodec/loongarch/Makefile b/libavcodec/loongarch/Makefile index c4d71e801b..3c15c2edeb 100644 --- a/libavcodec/loongarch/Makefile +++ b/libavcodec/loongarch/Makefile @@ -7,6 +7,7 @@ OBJS-$(CONFIG_VP9_DECODER) += loongarch/vp9dsp_init_loongarch.o OBJS-$(CONFIG_VC1DSP) += loongarch/vc1dsp_init_loongarch.o OBJS-$(CONFIG_HPELDSP) += loongarch/hpeldsp_init_loongarch.o OBJS-$(CONFIG_IDCTDSP) += loongarch/idctdsp_init_loongarch.o +OBJS-$(CONFIG_VIDEODSP) += loongarch/videodsp_init.o LASX-OBJS-$(CONFIG_H264CHROMA) += loongarch/h264chroma_lasx.o LASX-OBJS-$(CONFIG_H264QPEL) += loongarch/h264qpel_lasx.o LASX-OBJS-$(CONFIG_H264DSP) += loongarch/h264dsp_lasx.o \ diff --git a/libavcodec/loongarch/videodsp_init.c b/libavcodec/loongarch/videodsp_init.c new file mode 100644 index 0000000000..6cbb7763ff --- /dev/null +++ b/libavcodec/loongarch/videodsp_init.c @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + * Contributed by Xiwei Gu + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavcodec/videodsp.h" +#include "libavutil/attributes.h" + +static void prefetch_loongarch(uint8_t *mem, ptrdiff_t stride, int h) +{ + register const uint8_t *p = mem; + + __asm__ volatile ( + "1: \n\t" + "preld 0, %[p], 0 \n\t" + "preld 0, %[p], 32 \n\t" + "addi.d %[h], %[h], -1 \n\t" + "add.d %[p], %[p], %[stride] \n\t" + + "blt $r0, %[h], 1b \n\t" + : [p] "+r" (p), [h] "+r" (h) + : [stride] "r" (stride) + ); +} + +av_cold void ff_videodsp_init_loongarch(VideoDSPContext *ctx, int bpc) +{ + ctx->prefetch = prefetch_loongarch; +} diff --git a/libavcodec/videodsp.c b/libavcodec/videodsp.c index ce9e9eb143..212147984f 100644 --- a/libavcodec/videodsp.c +++ b/libavcodec/videodsp.c @@ -54,4 +54,6 @@ av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc) ff_videodsp_init_x86(ctx, bpc); if (ARCH_MIPS) ff_videodsp_init_mips(ctx, bpc); + if (ARCH_LOONGARCH64) + ff_videodsp_init_loongarch(ctx, bpc); } diff --git a/libavcodec/videodsp.h b/libavcodec/videodsp.h index c0545f22b0..ac971dc57f 100644 --- a/libavcodec/videodsp.h +++ b/libavcodec/videodsp.h @@ -84,5 +84,6 @@ void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc); void ff_videodsp_init_mips(VideoDSPContext *ctx, int bpc); +void ff_videodsp_init_loongarch(VideoDSPContext *ctx, int bpc); #endif /* AVCODEC_VIDEODSP_H */ -- 2.20.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".