From patchwork Thu Sep 9 11:24:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergey Senozhatsky X-Patchwork-Id: 508964 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72FD5C433EF for ; Thu, 9 Sep 2021 11:24:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 503BC61100 for ; Thu, 9 Sep 2021 11:24:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235739AbhIIL0D (ORCPT ); Thu, 9 Sep 2021 07:26:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235738AbhIIL0A (ORCPT ); Thu, 9 Sep 2021 07:26:00 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4ABBC061757 for ; Thu, 9 Sep 2021 04:24:50 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id g13-20020a17090a3c8d00b00196286963b9so1199108pjc.3 for ; Thu, 09 Sep 2021 04:24:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=XfTVnM+Kdt1HMBYOgi0OID403DvPUnw+Oe4D7AokcIc=; b=TXa6Dh43j/RiJZcZfGp/U/VMI+kPFpebUW9dJNRgCKOI8Rkz3AqIXHDOcLjE4jOHZU zsG5+VjKHQpcIow4nejBjuuyDQJKo7pC/ClLLcCpI3wvY4p3IBlEGV4ZyHCVgkyj965P BhrhuBZoTAhWscYuMsZE2jSZSbL/geboBEpxA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XfTVnM+Kdt1HMBYOgi0OID403DvPUnw+Oe4D7AokcIc=; b=jEexwMLfw3uXqtRvAnupUSh/AwEOzI3HGGncirzmJE+Q57Dgr4l7e1jJpQBcy35Nv/ AUrgmxJErNUQLaBanj7e4EE+awvxsN/QxxZNQt4XCyiGhHpvbYhIzKw3sNBjuia0Wmb7 vUpYPAaVtFKMDW0QI6ps/1CR2CfJhS3doDu6wNor+1IoiMx5hqAlfAkP9npB2r/OYpPm Ee6Ia7sU0iVutwMuMj7COlvchb0Uxoxcrn6RXkNujiWf/uqdOKRovEbFsVOEaMaksI7n H9yItSwfeyBzdNW9FxwyTOxQ6VhgS8cjvZXxOOJNRUiM7KUsOawAp3E6MnopBR1e74W+ U/CQ== X-Gm-Message-State: AOAM532+dJ5QEWEShU8bmA3dHIQwhaXhWZ8L4odCm0HIqKYiu1nYo/HJ nXAZtzA7DtTmC/pnTEQmBt7mTw== X-Google-Smtp-Source: ABdhPJyYcIxqMXzbTTXZ+BGYIqnO0OtUvhfEBnjB2NdtsZQsyV5eTybm60VfLtu7rj7YAHjskwgpXQ== X-Received: by 2002:a17:902:9008:b0:12d:8258:e07c with SMTP id a8-20020a170902900800b0012d8258e07cmr2304758plp.42.1631186690246; Thu, 09 Sep 2021 04:24:50 -0700 (PDT) Received: from senozhatsky.flets-east.jp ([2409:10:2e40:5100:166b:dcfc:dcf2:bbe2]) by smtp.gmail.com with ESMTPSA id 141sm2046860pgg.16.2021.09.09.04.24.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Sep 2021 04:24:49 -0700 (PDT) From: Sergey Senozhatsky To: Tomasz Figa , Hans Verkuil Cc: Marek Szyprowski , Dafna Hirschfeld , Ricardo Ribalda , Christoph Hellwig , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Sergey Senozhatsky Subject: [PATCHv6 4/8] videobuf2: move cache_hints handling to allocators Date: Thu, 9 Sep 2021 20:24:26 +0900 Message-Id: <20210909112430.61243-5-senozhatsky@chromium.org> X-Mailer: git-send-email 2.33.0.153.gba50c8fa24-goog In-Reply-To: <20210909112430.61243-1-senozhatsky@chromium.org> References: <20210909112430.61243-1-senozhatsky@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This moves cache hints handling from the videobuf2 core down to the allocator's level, because allocators do the sync/flush caches eventually and may take better decisions. Besides, allocators already decide whether cache sync/flush should be done or can be skipped. This patch moves the scattered buffer cache sync logic to one common place. Signed-off-by: Sergey Senozhatsky --- drivers/media/common/videobuf2/videobuf2-core.c | 6 ------ drivers/media/common/videobuf2/videobuf2-dma-contig.c | 6 ++++++ drivers/media/common/videobuf2/videobuf2-dma-sg.c | 6 ++++++ 3 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 59bd781c9a34..8fa9f92ed028 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -328,9 +328,6 @@ static void __vb2_buf_mem_prepare(struct vb2_buffer *vb) return; vb->synced = 1; - if (vb->skip_cache_sync_on_prepare) - return; - for (plane = 0; plane < vb->num_planes; ++plane) call_void_memop(vb, prepare, vb->planes[plane].mem_priv); } @@ -347,9 +344,6 @@ static void __vb2_buf_mem_finish(struct vb2_buffer *vb) return; vb->synced = 0; - if (vb->skip_cache_sync_on_finish) - return; - for (plane = 0; plane < vb->num_planes; ++plane) call_void_memop(vb, finish, vb->planes[plane].mem_priv); } diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c index 019c3843dc6d..1e218bc440c6 100644 --- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c +++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c @@ -101,6 +101,9 @@ static void vb2_dc_prepare(void *buf_priv) struct vb2_dc_buf *buf = buf_priv; struct sg_table *sgt = buf->dma_sgt; + if (buf->vb->skip_cache_sync_on_prepare) + return; + if (!sgt) return; @@ -112,6 +115,9 @@ static void vb2_dc_finish(void *buf_priv) struct vb2_dc_buf *buf = buf_priv; struct sg_table *sgt = buf->dma_sgt; + if (buf->vb->skip_cache_sync_on_finish) + return; + if (!sgt) return; diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c index 50265080cfc8..33ee63a99139 100644 --- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c +++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c @@ -204,6 +204,9 @@ static void vb2_dma_sg_prepare(void *buf_priv) struct vb2_dma_sg_buf *buf = buf_priv; struct sg_table *sgt = buf->dma_sgt; + if (buf->vb->skip_cache_sync_on_prepare) + return; + dma_sync_sgtable_for_device(buf->dev, sgt, buf->dma_dir); } @@ -212,6 +215,9 @@ static void vb2_dma_sg_finish(void *buf_priv) struct vb2_dma_sg_buf *buf = buf_priv; struct sg_table *sgt = buf->dma_sgt; + if (buf->vb->skip_cache_sync_on_finish) + return; + dma_sync_sgtable_for_cpu(buf->dev, sgt, buf->dma_dir); }