From patchwork Fri Sep 9 15:48:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?R=C3=A9mi_Denis-Courmont?= X-Patchwork-Id: 37798 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:139a:b0:8f:1db5:eae2 with SMTP id w26csp998186pzh; Fri, 9 Sep 2022 08:50:17 -0700 (PDT) X-Google-Smtp-Source: AA6agR5+3G+YThEAd2yz3tdB+7k6dOS5lrLnBBC9jnua7bTazPDMU2INLWu/qHCjX+HXLMjtQLSJ X-Received: by 2002:a17:907:e91:b0:741:a0a2:cbb8 with SMTP id ho17-20020a1709070e9100b00741a0a2cbb8mr10302791ejc.637.1662738617492; Fri, 09 Sep 2022 08:50:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1662738617; cv=none; d=google.com; s=arc-20160816; b=aMsceWj/n34AL9YvoX47k7DYxR2bkiQxbdO0N4pa0cV2sP1Z4+JUkz3ehU2oE3WGmN r8AQtKiEwgAvHjCQV9r3O99FCk9JGlF07WnjnLDgA3Cthd6zrEF5XBooSK9GerPpNful GFrzfY7gLAH/T8Fvqesp/Rcmp51k6w2CZSzOGVwkdjBRgiXds3sk6EJ76Rl82x1Lvg5I s3HdCbTOMMosZCfgvHTZbQ/5pV14Ix37sYmMIEmyDeBRsQ4/2S+lOy0WUk1gLP6jbMaW CIakJX43hzsGLcgpWV+knolCPlGrjkeVcFgFMknxNM6yz5aZeLO+iIu7gXzos0bcFicV I21Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:reply-to:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:subject:mime-version:message-id:date:to:from :delivered-to; bh=iFrUEysRNZaeFQPW4phUK07bqtQpR0v2uKgfuEvHscg=; b=vzCX4MNkNL+73uBrPKX87mU8thKM5YwOJGfjnuvaKi+NjH348fsJY+dXhAAa6dx3eG QIAYxpBrzIODut0e9rZI8LjAsVtsjZRvLAjynVGdWRx5afM5BDb3DNFMHXydbC4HND4l SrzLT7PFj3Op5d0KaL+Of+FlLYIl/X85u3tCPz0KOFuEaYHIOdl7uTcgzXa5Y8SP5vLg sLZ+wJtAAxtGpBu3bEHfED/HCPd/vLUruQjsMo6VLTMchmqSwpSSnZsC0DrosZzx6wxL +5LmlRSxjkfKj8DWEisTlg3uKqD3XkxcD3E4zSf3J3/cfi4fsTTg43TYlFUAnMIyX5hP cx/g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id hq3-20020a1709073f0300b0076f591c4692si929878ejc.330.2022.09.09.08.50.17; Fri, 09 Sep 2022 08:50:17 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E840C68BB28; Fri, 9 Sep 2022 18:49:13 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 9B72D68BB26 for ; Fri, 9 Sep 2022 18:49:05 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id C8695C00BB for ; Fri, 9 Sep 2022 18:49:01 +0300 (EEST) From: remi@remlab.net To: ffmpeg-devel@ffmpeg.org Date: Fri, 9 Sep 2022 18:48:56 +0300 Message-Id: <20220909154859.68954-15-remi@remlab.net> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 15/18] lavu/riscv: float reversed vector multiplication with RVV 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 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: 37fr4tNL/Adl From: Rémi Denis-Courmont --- libavutil/riscv/float_dsp_init.c | 3 +++ libavutil/riscv/float_dsp_rvv.S | 22 ++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/libavutil/riscv/float_dsp_init.c b/libavutil/riscv/float_dsp_init.c index 4980214821..e6a5efbf68 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -30,6 +30,8 @@ void ff_vector_fmul_scalar_rvv(float *dst, const float *src, float mul, int len); void ff_vector_fmul_add_rvv(float *dst, const float *src0, const float *src1, const float *src2, int len); +void ff_vector_fmul_reverse_rvv(float *dst, const float *src0, + const float *src1, int len); void ff_butterflies_float_rvv(float *v1, float *v2, int len); void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1, @@ -49,6 +51,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp) fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_rvv; fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_rvv; fdsp->vector_fmul_add = ff_vector_fmul_add_rvv; + fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_rvv; fdsp->butterflies_float = ff_butterflies_float_rvv; if (flags & AV_CPU_FLAG_ZVE64D) { diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index 1c3b08b94f..b376392294 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -92,6 +92,28 @@ func ff_vector_fmul_add_rvv, zve32f ret endfunc +// (a0) = (a1) * reverse(a2) [0..a3-1] +func ff_vector_fmul_reverse_rvv, zve32f + add t3, a3, -1 + li t2, -4 // byte stride + slli t3, t3, 2 + add a2, a2, t3 + +1: vsetvli t0, a3, e32, m8, ta, ma + slli t1, t0, 2 + vle32.v v16, (a1) + add a1, a1, t1 + vlse32.v v24, (a2), t2 + sub a2, a2, t1 + vfmul.vv v16, v16, v24 + sub a3, a3, t0 + vse32.v v16, (a0) + add a0, a0, t1 + bnez a3, 1b + + ret +endfunc + // (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1] func ff_butterflies_float_rvv, zve32f 1: vsetvli t0, a2, e32, m8, ta, ma