From patchwork Thu Oct 20 12:13:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 13013373 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA204C4332F for ; Thu, 20 Oct 2022 12:13:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5D59510EC88; Thu, 20 Oct 2022 12:13:41 +0000 (UTC) Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by gabe.freedesktop.org (Postfix) with ESMTPS id AA59610E445 for ; Thu, 20 Oct 2022 12:13:27 +0000 (UTC) Received: by mail-ej1-x62a.google.com with SMTP id d26so46862228eje.10 for ; Thu, 20 Oct 2022 05:13:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6+v29EKFl+eJvb82q1HKwVTg2HY11/VB4Svx4P9W+lo=; b=YqFUB2RVnHN5EsUo3VW1I9AsNIcJJQLV4S+D44r9T9b6ym2gHsJKjzGJimsfO6xmbU A/+REzVhwdsNLSGCWIlcXJnVzRV5XGbNg2/RaaZKNEi53jQhLaFGPH8liVB+C996ROnc E1C7cbICnMASBOMmLMtdY6huElsnoE+NKhqTKQuA/qOlUY6R49cmAb/38cLDHTGowhY4 yUOGRnuAFJ5PnrBCfk8n9kco9tJZxEyyQWN+mfjRog96QiZ7rsio7eYITjKsjVmyrG7q jZwXCk33x8Jwjap9Zfv/JsVGZhluG1rEZaKxg0vX/31a+Q3b8L3mtUsmk97ho1lIr3Iy 5Q3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6+v29EKFl+eJvb82q1HKwVTg2HY11/VB4Svx4P9W+lo=; b=eSUL5ZVT3iBQv4f5Yk6AK9JgFH7/uGkCspOA4dlXufaOzvZXaYFRuNZxEur6pHkRxY hSYqZVReTsn2IsLG7YQ1nMlSNjkP5cqV7YPk2xllDR9ErjlH0sWwoeaFL2xEbG8u0+9q Rmk196Ho14mCYF2oduGF+q7JuCoExS3iNg9H0sSm56Mv4O4jTIwzytRV1JazMq6lOWqh TZaUMjRVUYdmGsq+aNGdWH/M5uvHwZ/wI1067yCjjRR4kUG5crdHGjraKOujgH55Re7r Ad6T0I1DDrrzFbFoSuzHwnVbVE1FicZvE4VGaG0KmyC2NBR+573lZfK30PByeAuFfZNn kcVQ== X-Gm-Message-State: ACrzQf0IT8RKKpGVKsAT05yafXyfQ9FRyhNASHzlfYI1MiKlKyBsWMx7 0viC+TMoUB7GVGEHAy95mLc= X-Google-Smtp-Source: AMsMyM6BChwqh4PIcxBaoBdOLcOjBF6P/9MGAQWN+q+1y6+Muz30Cs5s0ZOBk0hSI0JvdUfHbEu7gA== X-Received: by 2002:a17:907:31c4:b0:78d:9b2f:4e1a with SMTP id xf4-20020a17090731c400b0078d9b2f4e1amr10731462ejb.306.1666268006079; Thu, 20 Oct 2022 05:13:26 -0700 (PDT) Received: from able.fritz.box (p5b0eacfe.dip0.t-ipconnect.de. [91.14.172.254]) by smtp.gmail.com with ESMTPSA id s15-20020a05640217cf00b0045467008dd0sm12091979edy.35.2022.10.20.05.13.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 05:13:25 -0700 (PDT) From: " =?utf-8?q?Christian_K=C3=B6nig?= " X-Google-Original-From: =?utf-8?q?Christian_K=C3=B6nig?= To: l.stach@pengutronix.de, nicolas@ndufresne.ca, ppaalanen@gmail.com, sumit.semwal@linaro.org, daniel@ffwll.ch, robdclark@gmail.com, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-media@vger.kernel.org Subject: [PATCH 2/3] drm/prime: set the dma_coherent flag for export Date: Thu, 20 Oct 2022 14:13:15 +0200 Message-Id: <20221020121316.3946-3-christian.koenig@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221020121316.3946-1-christian.koenig@amd.com> References: <20221020121316.3946-1-christian.koenig@amd.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Christian_K=C3=B6nig?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" When a device driver is snooping the CPU cache during access we assume that all importers need to be able to snoop the CPU cache as well. Signed-off-by: Christian König --- drivers/gpu/drm/drm_prime.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 20e109a802ae..d5c70b6fe8a4 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -28,6 +28,7 @@ #include #include +#include #include #include @@ -889,6 +890,7 @@ struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj, .size = obj->size, .flags = flags, .priv = obj, + .coherent = dev_is_dma_coherent(dev->dev), .resv = obj->resv, };