From patchwork Mon Sep 12 15:53:30 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: 37875 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:3b1c:b0:96:9ee8:5cfd with SMTP id c28csp164384pzh; Mon, 12 Sep 2022 08:56:10 -0700 (PDT) X-Google-Smtp-Source: AA6agR7bJ8ppUqgjuNGKj9tki209RCxUcDTpKLy73T0jSzI4EFHxXYZnfth9MXlC0TOvF5V3njqi X-Received: by 2002:a05:6402:51d1:b0:451:e6a6:4919 with SMTP id r17-20020a05640251d100b00451e6a64919mr3249970edd.58.1662998169947; Mon, 12 Sep 2022 08:56:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1662998169; cv=none; d=google.com; s=arc-20160816; b=kEmUzrUgDw5RVTQV7rT6P227F6SFLQ23mo8ibcw9vL3XO6kNp048cCsk9yMayisNX3 n/bHOTPT+hPukONYHkbjwWaavhm4mmw+LONsaRA1Ff36qtlaVYGIqJqAr8YF6h5Hpz8N 0Rnz83jw9aeMAoFAtJY//+Wxlaiuh2SKW+LyZhTsDctgyUGyA/PWR3BH4szqvGhI2Dqq bCalmNckyj4NrWcJVh8Nglq14R+nJUCbn+ek2T5elp97HnQof+DMErA4YXL9scAqJv+u C9I0Q134sy0KLiBkIfqIbGa1Hi3KWeIehezWBFuY4saAt32nxjFyk9/HdPRYevdQ6uhu aD/A== 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:references:in-reply-to:message-id :date:to:from:delivered-to; bh=F15XuuxlYPAwNYmNfN6kP9zqrKctamMCAQ/zIYXsJF8=; b=swbHkkxEOu/wE8/xQXaCKhPZQp37lWomOrZcxUYME+0tbWqh0hnE5sWm68rJHv0WTc aBgSeT1IA9kIuWTghxKuLPOoR5I6MtHUA4Cw6FvnMl80ZKMsjtE08Df3wbZWtGVli86N DBOd4qnnpHcThv55Lhcftrz7KAuJI4bQHTUHpbHe3fpq9jiYOX/5u5jmUwMdT0t6zd3J LW/6pPo7BZh/xcNu2/djD0eMDLgLZptXblHUP2qlr1bctgX6XHUdMzcDm2io8LNi4jW+ i4QMIvdBjACpLr+X8EzDXFjGqROjZ4TOPsQ3yGj4XKXfEfFEcFbNv1ULcgIz/7ZeC6QP 0VKA== 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 h2-20020aa7c602000000b0044e8330487esi5999264edq.264.2022.09.12.08.56.09; Mon, 12 Sep 2022 08:56:09 -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 65D0968BB74; Mon, 12 Sep 2022 18:53:59 +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 62DB468BB6B for ; Mon, 12 Sep 2022 18:53:40 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 95815C00BB for ; Mon, 12 Sep 2022 18:53:36 +0300 (EEST) From: remi@remlab.net To: ffmpeg-devel@ffmpeg.org Date: Mon, 12 Sep 2022 18:53:30 +0300 Message-Id: <20220912155333.59843-15-remi@remlab.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <2652141.mvXUDI8C0e@basile.remlab.net> References: <2652141.mvXUDI8C0e@basile.remlab.net> 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: JKFrBe3UNrBK 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 c2b72c3b25..ae089d2fdb 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -31,6 +31,8 @@ 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, @@ -50,6 +52,7 @@ 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