From patchwork Wed May 13 13:32:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 11546293 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D7E7E90 for ; Wed, 13 May 2020 13:41:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F24AC204EF for ; Wed, 13 May 2020 13:41:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="UuYkiby/"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="XSk79eSB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F24AC204EF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=samsung.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=oCvAdORzCm1ksOTCaSPrtB/I67NEYIcxSnDLASl5t6s=; b=UuYkiby/JZYGOpbKXVxYkVHnov OcGk6Ssne6T1QH5imjzq8J7zEXqVe1sA5YkKHqezOH/Cww5M2RGx7XccCUWK042MciXHSzKJQAlaK Iwlv8qiIhyMTqzqNEorLerBi5d3wyA+6APuASSINfrQxvcKM2E8QH23lKAL18P0wU7rSmYuIwli/Y ipKj96Ak9sQvr0I84de6NWzpEDwvq4kIF8kzB5BTojbvNHAbHv2XiC9+4danpUPjob2RzbGw6oKQZ snYObKT/Zh9WGBz8O+c2w95+b8tavTkGG7pANGKdBL41aEWBbNl8zQ+z2WiUCNu5oSTTE6cE5ViCf LSCDZ3oQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYrdH-0004h8-5r; Wed, 13 May 2020 13:41:11 +0000 Received: from mailout2.w1.samsung.com ([210.118.77.12]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYrVc-0001cH-Rv for linux-arm-kernel@lists.infradead.org; Wed, 13 May 2020 13:33:26 +0000 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20200513133312euoutp02b020b1e8d4b9a2fed06005c317fd3a45~OmcWrht930033500335euoutp02R for ; Wed, 13 May 2020 13:33:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20200513133312euoutp02b020b1e8d4b9a2fed06005c317fd3a45~OmcWrht930033500335euoutp02R DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1589376792; bh=ajKNWEur/j3kJDi0IDcqqrpxOyKZtcQE79V0/ItRN54=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XSk79eSBjGEf2sl4moZbV/T1FelXSd3C3yvaz8Q6R71/RyzgIVLC+H9BS1t9M195n 7E9taSGOzV1MVwdJs4s7uWzTVELDgra0U4XhhJO5owXJTzqYFkB3QP3ILif8+3uB8S hLUD+LvZ2s0T5TpJiJzvvfI1Jc04IUJbVHO6/aUA= Received: from eusmges1new.samsung.com (unknown [203.254.199.242]) by eucas1p1.samsung.com (KnoxPortal) with ESMTP id 20200513133312eucas1p16340b6ab9117a7a566eae1f10d7cd477~OmcWdqnBl2351423514eucas1p1P; Wed, 13 May 2020 13:33:12 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges1new.samsung.com (EUCPMTA) with SMTP id FE.C5.61286.817FBBE5; Wed, 13 May 2020 14:33:12 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20200513133312eucas1p15e5e3bb3ba8e74b923fdccc7decab375~OmcWEGqe42350623506eucas1p1P; Wed, 13 May 2020 13:33:12 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20200513133312eusmtrp17dc4ab0646eab5d47fd06026993facb4~OmcWDYKbj1050610506eusmtrp1P; Wed, 13 May 2020 13:33:12 +0000 (GMT) X-AuditID: cbfec7f2-f0bff7000001ef66-5f-5ebbf7185db5 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id F9.1A.08375.817FBBE5; Wed, 13 May 2020 14:33:12 +0100 (BST) Received: from AMDC2765.digital.local (unknown [106.120.51.73]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20200513133311eusmtip13c56d5e5984716aad8f7f67e38b9ce08~OmcVQ2X460693306933eusmtip1D; Wed, 13 May 2020 13:33:11 +0000 (GMT) From: Marek Szyprowski To: dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 21/38] drm: rockchip: use common helper for a scatterlist contiguity check Date: Wed, 13 May 2020 15:32:28 +0200 Message-Id: <20200513133245.6408-21-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200513133245.6408-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSe0hTURzHO7v3bnfT2XUKnizSBiUK+aAHt2xhIXUpiv6TitSlFzWdyq5a RtJS0pqPTPGB1ZiPNB/TZbaFEurUNAwzFfGZb9KZFeosg1yb1+y/z/d7vj++v3M4OCJqwZzx iOg4Wh4tjRJzBaju3frHg/BnU6B3m9KFzOx5zyFfFtZhpFn3GCEHTN+5ZGV1B4c0Ty9i5LOc JFLd7EuuDkxxyPqZQYzsb3zKJZcnzQipaR/nka0/ZjE/O6pGVQOot2tqlNKvTWLURHonh3pV dpca3ZhBqNyhCkA1DSu41J+iZpTKaqgClH5QhVAr9Xsv2V4RnAiloyISaLnXyWBBeEltF4hN sbulz9NyFOCLjRLwcUgchrW6DqAEAlxEvADQOPEEZcUqgGXJaoQVKwA+N4xy/o1omka2UhUA rmmGedsjLaPVmDXFJXygcknJtbIjcR/ArkxbKyNEPgKrTGes7EAEwWyTfjOPEvuhNkvFs7KQ kMBPqhYu2+YCq7UtiJX5Ft841rzZDIlBHizIL8DYkD/s16i32AEaOxt4LO+B3bkZWwMpAE71 aHisyACwP7kQsClfONbz21KHW9Zzh3WNXqx9ChZv9G3akLCDQ0v27AXsYI6uAGFtIXyQKmLT B2BRZ+12bWtvH8IyBRVp5Vuv1QbgUr6Rkw1civ6XqQGoAk50PCMLoxmfaPqmJyOVMfHRYZ4h MbJ6YPlX3Rudy2+Aqe+6ARA4ENsKyZGmQBEmTWASZQYAcUTsKLxYZ7GEodLE27Q8JkgeH0Uz BrAbR8VOwkMlC9dERJg0jo6k6Vha/u+Ug/OdFUCrEHY3J+coj1z+/DDd3iU1ScDsGpzsOztf eWwuNXN8X3HkOTDrGhuUXZ7agfqtBH1zdZfMu5n1xy/ssMn4IOGPrS+Xulb635MUl3mnhXSE 3+GnHF3wiH9t1urCpxeDbUodvAR5JjfUcFoYINkZ0K6auzFlP/Er9irXaDz/9VGvGGXCpT4e iJyR/gVAyx62UwMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIIsWRmVeSWpSXmKPExsVy+t/xu7oS33fHGTR8YrHoPXeSyWLjjPWs Fv+3TWS2uPL1PZvFytVHmSz+P3rNajF3Uq3Fgv3WFl+uPGSy2PT4GqvF5V1z2Cw+PfjPbLH2 yF12i4MfnrA68HmsmbeG0WPvtwUsHtu/PWD1uN99nMlj85J6j9v/HjN7TL6xnNFj980GNo+/ s/azePRtWcXosf3aPGaPz5vkAnii9GyK8ktLUhUy8otLbJWiDS2M9AwtLfSMTCz1DI3NY62M TJX07WxSUnMyy1KL9O0S9DIWrTvBWNDMV7F96gamBsbn3F2MnBwSAiYSa3ffYuli5OIQEljK KPGxvY0VIiEjcXJaA5QtLPHnWhcbRNEnRolZB76zgyTYBAwlut5CJEQEOhklpnV/ZAdxmAXm MUssX3WYqYuRg0NYIFbizO8akAYWAVWJDX3zwJp5BWwlLs47wAaxQV5i9YYDzCA2J1D81Z39 LCC2kEC+xN7F+9gmMPItYGRYxSiSWlqcm55bbKhXnJhbXJqXrpecn7uJERg924793LyD8dLG 4EOMAhyMSjy8Frd2xwmxJpYVV+YeYpTgYFYS4fVbDxTiTUmsrEotyo8vKs1JLT7EaAp01ERm KdHkfGBk55XEG5oamltYGpobmxubWSiJ83YIHIwREkhPLEnNTk0tSC2C6WPi4JRqYNTdupiv +rL9JGG5aYknGtXvrFb8EXz50qy3YR/j9IJnGK/qeMm9c+tnxzlh4r1rN+5643zj/dPkHdKe 01sfNoq01xzgm1TQVJOf9XxDoM4Dp+NV8myLmKy1E6/yTfs7W2P6VdfF/msvlfnezfm6407d 797Eo9XP/N/sFY+6FunFxRLaeV7CQlKJpTgj0VCLuag4EQDTlMswtAIAAA== X-CMS-MailID: 20200513133312eucas1p15e5e3bb3ba8e74b923fdccc7decab375 X-Msg-Generator: CA X-RootMTR: 20200513133312eucas1p15e5e3bb3ba8e74b923fdccc7decab375 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200513133312eucas1p15e5e3bb3ba8e74b923fdccc7decab375 References: <20200513132114.6046-1-m.szyprowski@samsung.com> <20200513133245.6408-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200513_063317_041349_A41068C4 X-CRM114-Status: GOOD ( 14.76 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [210.118.77.12 listed in wl.mailspike.net] -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.12 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Heiko_St=C3=BCbner?= , Bartlomiej Zolnierkiewicz , David Airlie , Sandy Huang , linux-rockchip@lists.infradead.org, Daniel Vetter , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Use common helper for checking the contiguity of the imported dma-buf. Signed-off-by: Marek Szyprowski --- For more information, see '[PATCH v5 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse' thread: https://lore.kernel.org/linux-iommu/20200513132114.6046-1-m.szyprowski@samsung.com/T/ --- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 0d18846..21f8cb2 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -460,23 +460,6 @@ struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj) return sgt; } -static unsigned long rockchip_sg_get_contiguous_size(struct sg_table *sgt, - int count) -{ - struct scatterlist *s; - dma_addr_t expected = sg_dma_address(sgt->sgl); - unsigned int i; - unsigned long size = 0; - - for_each_sg(sgt->sgl, s, count, i) { - if (sg_dma_address(s) != expected) - break; - expected = sg_dma_address(s) + sg_dma_len(s); - size += sg_dma_len(s); - } - return size; -} - static int rockchip_gem_iommu_map_sg(struct drm_device *drm, struct dma_buf_attachment *attach, @@ -498,7 +481,7 @@ static unsigned long rockchip_sg_get_contiguous_size(struct sg_table *sgt, if (!count) return -EINVAL; - if (rockchip_sg_get_contiguous_size(sg, count) < attach->dmabuf->size) { + if (drm_prime_get_contiguous_size(sg) < attach->dmabuf->size) { DRM_ERROR("failed to map sg_table to contiguous linear address.\n"); dma_unmap_sg(drm->dev, sg->sgl, sg->nents, DMA_BIDIRECTIONAL);