From patchwork Fri Sep 9 15:48:58 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: 37799 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:139a:b0:8f:1db5:eae2 with SMTP id w26csp998257pzh; Fri, 9 Sep 2022 08:50:27 -0700 (PDT) X-Google-Smtp-Source: AA6agR76a9V+xWss94F6WxXT6u6AEdPLntvGI5+hnnwOu4YoI/2YSQw4MZJDooVrYmMrvs9ocZeL X-Received: by 2002:a17:907:2bf7:b0:730:996d:5e8d with SMTP id gv55-20020a1709072bf700b00730996d5e8dmr10529254ejc.382.1662738626868; Fri, 09 Sep 2022 08:50:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1662738626; cv=none; d=google.com; s=arc-20160816; b=eE2kvbjbpcASeEPtDR4ypiknT1sUtT1xRvw3/GRxOhm7hWq7s/+TSTpAVjKwy+nz/Y fmExryIq51gY7FAWa6BkXsOgq3oTSp7qhsB/7lBCXeF183zQD8eBQX1NFDuyf22mxXbJ ihLO9YzyDybAPlPEyhps4agDwvAxRk4L9aA4zMVIk5ubRuX6nToI7Zxwym6oL5CNbIzO tHSByN9cwDfPc8KOGSgoxroPZFwDNFgxvHfluRhlZw6qTm3004ZzJDWsuGZta8r4NYkp ++O40RYQ7nyFne8YdphxcwteuQY6L4q03oL/rmrdayHZKIx/KVkqaJUpnLMHuLT2ru/K Vatw== 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=r8N5UDG+/3PEx6wF7Hwv630JUndvMGux23gMCZI74KE=; b=SxDck2Tm4mWen5DlggmiqkhbdER8mi9UxxAg6mH4zzfHhqe6YyMb+q59eqwt1Hf1Kf IyZlc94gz2uqVuGm1bI3RJF7Hk4ZDB7dYFELjljQgOWtpC2twwSqV4KzaxSVYGO+pUHV 3hTSXAwf8rgGldTw9OfI9ceQnpbufkEr2UzbW0YnM36SjsZsDIlQ9TsrmpqIccvIjQIy SXXDAVf+Om682IY40jaA0xB7fFMcmk3klxPHBQEhuS26KKpqquXsFx7CAWCzbX8GeXtH UiZLDKkBC4kL+EWmeyggMGCJxm25Cu5WAN9FdcnFH/RkDlaT48tkoVga8zi5gQeLZf3b GbeA== 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 sb37-20020a1709076da500b00730fdb36019si628763ejc.21.2022.09.09.08.50.26; Fri, 09 Sep 2022 08:50:26 -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 F2B0268BB6F; Fri, 9 Sep 2022 18:49:14 +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 A5FC268BB27 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 282EEC00BD for ; Fri, 9 Sep 2022 18:49:02 +0300 (EEST) From: remi@remlab.net To: ffmpeg-devel@ffmpeg.org Date: Fri, 9 Sep 2022 18:48:58 +0300 Message-Id: <20220909154859.68954-17-remi@remlab.net> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 17/18] lavu/riscv: float vector dot product 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: RSdmYYqSbrSk From: Rémi Denis-Courmont --- libavutil/riscv/float_dsp_init.c | 2 ++ libavutil/riscv/float_dsp_rvv.S | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/libavutil/riscv/float_dsp_init.c b/libavutil/riscv/float_dsp_init.c index 99cc8afd31..9c5e06bae9 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -35,6 +35,7 @@ void ff_vector_fmul_add_rvv(float *dst, const float *src0, const float *src1, 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); +float ff_scalarproduct_float_rvv(const float *v1, const float *v2, int len); void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1, int len); @@ -56,6 +57,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp) 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; + fdsp->scalarproduct_float = ff_scalarproduct_float_rvv; if (flags & AV_CPU_FLAG_ZVE64D) { fdsp->vector_dmul = ff_vector_dmul_rvv; diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index 65daaa2d27..81bd0e510a 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -167,6 +167,27 @@ func ff_butterflies_float_rvv, zve32f ret endfunc +// a0 = (a0).(a1) [0..a2-1] +func ff_scalarproduct_float_rvv, zve32f + vsetvli zero, zero, e32, m8, ta, ma + vmv.s.x v8, zero + +1: vsetvli t0, a2, e32, m8, ta, ma + slli t1, t0, 2 + vle32.v v16, (a0) + add a0, a0, t1 + vle32.v v24, (a1) + add a1, a1, t1 + vfmul.vv v16, v16, v24 + sub a2, a2, t0 + vfredusum.vs v8, v16, v8 + bnez a2, 1b + + vfmv.f.s fa0, v8 +NOHWF fmv.x.w a0, fa0 + ret +endfunc + // (a0) = (a1) * (a2) [0..a3-1] func ff_vector_dmul_rvv, zve64d 1: vsetvli t0, a3, e64, m8, ta, ma