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[23.128.96.18]) by mx.google.com with ESMTP id d22si1917801edz.94.2020.05.14.09.05.28; Thu, 14 May 2020 09:05:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="c/t5Jl5g"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728097AbgENQCx (ORCPT + 99 others); Thu, 14 May 2020 12:02:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726037AbgENQCw (ORCPT ); Thu, 14 May 2020 12:02:52 -0400 Received: from mail-pf1-x443.google.com (mail-pf1-x443.google.com [IPv6:2607:f8b0:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1272BC061A0C; Thu, 14 May 2020 09:02:52 -0700 (PDT) Received: by mail-pf1-x443.google.com with SMTP id x77so1506225pfc.0; Thu, 14 May 2020 09:02:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ulQxFo56i5vrppKta1ls/Sq8Rcp1nNk3Qy4EKXx/4ww=; b=c/t5Jl5g8lFXZfuf3nZbC7oQlaQmgFg+60o70eSocAWJDtUwnnPLceyXl99RzpngpU N+5Huu3ue9Cn5K8aZasUtgPD48FUYqbStmxv2xOe3ICBJbl4xMor+xyzh+a3WmO95FDB S/mAMlWecrOVzR5bkP3HDtJLCdyAlNCpGFDFyh/SWbD+V3Gx5t0qfyY9EOkzZwfTKJ0c N/mbVOc6rQV8bw1fkaXkVFGOFUs79LBTAk53SqoFJ1gYlQQSB2nOzeS17RBDkiVdS/oL ZaoBejnJtVUZ7UY1juL/GxmtAx6H1SKTDvnOW+GUHI9f+NvpfXEkMFmjpihaeKEfgN6D Wjag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ulQxFo56i5vrppKta1ls/Sq8Rcp1nNk3Qy4EKXx/4ww=; b=MufwnQkXOXL063uBOrTnrl/tbBfs2vNB0YRUKEJqxQFrBvAAMr2GxcHKGTCaUOeVZ4 AHzLM+Nwbb/bBM5frAzx/s+csrHorqCrt8aheyt8D7h+tjr9UsR5Fj9ZRV6zjwmWWWBU jdhgsYPPjBPtBouMr3e9tnbAqjGcop7Q5mta7fjwk4+bMwItik81GjCrbTEduA/KGjxQ lYxC5M0FQuDNSgSdulBRsV30RYQxkyRbHyLKa8L4z6f3iiBiahqvET24G6yOM1ul7GaE TA+PctRJ7kMs5nNjqXHDi1uuLrvbL+kG/6JBCrGo/huKp9I/HorqayHPyYUeGKSuIqKW J3tA== X-Gm-Message-State: AOAM5332NkeTATQ0KTdASVYOpZxvMl+P0MpyNbx653SETr0FJYx7ubRi 38AXEG/uImrawiBmvvBv3rKMihIb X-Received: by 2002:a65:468f:: with SMTP id h15mr4420789pgr.452.1589472171546; Thu, 14 May 2020 09:02:51 -0700 (PDT) Received: from localhost.localdomain ([2409:10:2e40:5100:6e29:95ff:fe2d:8f34]) by smtp.gmail.com with ESMTPSA id y6sm18178691pjw.15.2020.05.14.09.02.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 May 2020 09:02:49 -0700 (PDT) From: Sergey Senozhatsky To: Hans Verkuil Cc: Mauro Carvalho Chehab , Tomasz Figa , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [PATCH v6 08/14] videobuf2: do not sync caches when we are allowed not to Date: Fri, 15 May 2020 01:01:47 +0900 Message-Id: <20200514160153.3646-9-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200514160153.3646-1-sergey.senozhatsky@gmail.com> References: <20200514160153.3646-1-sergey.senozhatsky@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sergey Senozhatsky Skip ->prepare() or/and ->finish() cache synchronisation if user-space requested us to do so (or when queue dma direction permits us to skip cache syncs). Signed-off-by: Sergey Senozhatsky --- drivers/media/common/videobuf2/videobuf2-core.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 6a95663afcd1..1a55ea19160b 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -304,8 +304,11 @@ static void __vb2_buf_mem_prepare(struct vb2_buffer *vb) { unsigned int plane; - for (plane = 0; plane < vb->num_planes; ++plane) - call_void_memop(vb, prepare, vb->planes[plane].mem_priv); + if (vb->need_cache_sync_on_prepare) { + for (plane = 0; plane < vb->num_planes; ++plane) + call_void_memop(vb, prepare, + vb->planes[plane].mem_priv); + } vb->synced = 1; } @@ -317,8 +320,11 @@ static void __vb2_buf_mem_finish(struct vb2_buffer *vb) { unsigned int plane; - for (plane = 0; plane < vb->num_planes; ++plane) - call_void_memop(vb, finish, vb->planes[plane].mem_priv); + if (vb->need_cache_sync_on_finish) { + for (plane = 0; plane < vb->num_planes; ++plane) + call_void_memop(vb, finish, + vb->planes[plane].mem_priv); + } vb->synced = 0; } -- 2.26.2