From patchwork Mon May 11 02:00:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alim Akhtar X-Patchwork-Id: 11539557 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 C6DDB139A for ; Mon, 11 May 2020 02:14:31 +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 A51302137B for ; Mon, 11 May 2020 02:14:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SJgfW2Jf"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="mP7SePy0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A51302137B 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=VJ/lYx4BWMSgZfbxFmExNEmRn/IxKobofhnFfqpcwho=; b=SJgfW2Jfhu8NUl9mUqHDeqScKj K2Ei2jUySdgNjp0zwivconV3vzZNmQs3qnk1yHbAcSf/HiG/HmaXjfoynboDQhk8+kCCkJj1Td/r5 O4z/4fT4VHkeObdE9QfhG+uiTWiRz27A9kVkzdK2uFXpXPPHaESOIfxlaEieo6g4LxKtEtsTw7sg4 9WBWZJapIWx0k5dK4d9Kw+b+U5IpL7CUd+PVboRj6FH71eqJP62F3l7/NJjespJFh+iKwfZsMwDDx v7jjsvOsm+JZgv6DgndhJ1T8F+jRUmzCdfJkrdUxa65sNk5Z0htZLgEXfvrtFxxHlbln5CszVLou0 PbpGeEuA==; 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 1jXxxb-0003Mr-8F; Mon, 11 May 2020 02:14:27 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jXxxA-0002tJ-Ly for linux-arm-kernel@lists.infradead.org; Mon, 11 May 2020 02:14:02 +0000 Received: from epcas5p3.samsung.com (unknown [182.195.41.41]) by mailout2.samsung.com (KnoxPortal) with ESMTP id 20200511021358epoutp02a1d3eb326b7cd5e11483dfb76e3b5e43~N14u8BG853178531785epoutp02r for ; Mon, 11 May 2020 02:13:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.samsung.com 20200511021358epoutp02a1d3eb326b7cd5e11483dfb76e3b5e43~N14u8BG853178531785epoutp02r DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1589163238; bh=nPCI6KtKTzdjjbh5jTvGpI1fKN6gjrCt7WH8b1I6htY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mP7SePy03rDnsqEWNKKDxUFk35ngwtwzBL5MA3nLxcAPwRO1maCXf8EDcZ6Ky8JdS i8NUrwpkv+LEOSGGAqfybLv2QNiSEcWNo3zXgqxKSIlpBWondPX8GcoEh7gDtT8qZ8 Q1h19EL1ePB9MYZFBwEzQ/V2QxBCUKtfetSvDZIo= Received: from epsmges5p3new.samsung.com (unknown [182.195.42.75]) by epcas5p3.samsung.com (KnoxPortal) with ESMTP id 20200511021357epcas5p3b9ebc4be44662f2a9c3cc143b5ab86d3~N14t_O96x1506415064epcas5p3P; Mon, 11 May 2020 02:13:57 +0000 (GMT) Received: from epcas5p1.samsung.com ( [182.195.41.39]) by epsmges5p3new.samsung.com (Symantec Messaging Gateway) with SMTP id CD.0A.23389.5E4B8BE5; Mon, 11 May 2020 11:13:57 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20200511021357epcas5p31ca197c25742a50359b076f10d4938cd~N14tezyBe2929029290epcas5p3B; Mon, 11 May 2020 02:13:57 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20200511021356epsmtrp20e8a952fd61f692aad30c99a3c57a5fb~N14tVYRlg1520815208epsmtrp2I; Mon, 11 May 2020 02:13:56 +0000 (GMT) X-AuditID: b6c32a4b-7adff70000005b5d-30-5eb8b4e58333 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 5C.E6.18461.4E4B8BE5; Mon, 11 May 2020 11:13:56 +0900 (KST) Received: from Jaguar.sa.corp.samsungelectronics.net (unknown [107.108.73.139]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20200511021354epsmtip2df48f4cdf9d3437091391a5eeeebdb6d~N14rJxPbn3209532095epsmtip2i; Mon, 11 May 2020 02:13:54 +0000 (GMT) From: Alim Akhtar To: robh@kernel.org Subject: [PATCH v8 04/10] scsi: ufs: introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk Date: Mon, 11 May 2020 07:30:25 +0530 Message-Id: <20200511020031.25730-5-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200511020031.25730-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSeUwTURDGfbvb7bZaXQviQD0xRMVQD5SsNzEGN8ErRo1RAza6AuFqWrwP EOrVChZFIYqKilTqhbjQBjygFhA0xYSighIrKCoaVIiN91G2xv9+M/N975tMHoXL00UBVFxS CqdJUiUEklKi/O74sSGveGvUpLfO0YzrdDnJvP3aTDI914pEzBm7Q8Q0NpaImRa+hmBKOx6J mKaKfJLJa7yNMYbHVpIx1f3CmN83rWLmQlkLCpexTVmZGFtqPkiyNwpTWV39HYL99KqVYLN4 M2J7S0ew+6sM2FJqtXTWBi4hbjOnmThnnTT2049yXG0ZsjVP1yxOQ22D9UhCAT0VrtYXER6W 05UIGjPG6JH0L/cgKPniJIXCjcB+sAv/57jyqNM7uIWg8uRzJBQ6DB6015MeFUlPgLZcHvOw L+0Ddvc+5GGcfoKBq3i+HlGUD70MjKfGedoEHQSHjlzuW0NGzwKL5bBYCBsJl0qq+oIl9Gw4 nmYhPFlA76XA+ew8IYjmw/fbdq/BB7rqeC8HQG/3LdKTBXQ8HKoIFdo74cLpWq91LlQ58wmP BKfHw7WKicKWAyHz+0tMcMrgwD65oA6CjO5mr1MB2QaDSGAWGtqLxMIVjAgePrQgIxp+4v+r BQiZkT+n1ibGcNpp6tAkbotSq0rUbkqKUa5PTixFfd8kONKK2l0flTaEUciGgMIDfWWmRGuU XLZBtW07p0mO1mxK4LQ2pKCIwKGyjj18lJyOUaVw8Ryn5jT/phglCUjDBrvDsyKMTkf5kJyb 10cvS88x+azrXlxbrXSbJkyqG+XvT4rGZHeOcoszM3rttv6p5qOGvMJF74tDG8JjCynFLsPc J5/XXH2z8s2lSqtJYZ6mCsutOZUa/XOQ6efCpjX6jBA2ZFFE7ccI8bglMzbG890134xl+sie 6i8j+z3I0QdVNkzHV10/9uJ9Qeix1+fhZNxju3lq15T7uzouRraN3XnuxbwFr51pHxZ3tvjl Eo5VufkD3kHxwrN+Vam8Yo5DsrwteNjarXd8hw4L4Ir4zRK/Aoce+LCWHa3BFl56ZJsxOd3l Qq1heLTtpXrFDUyasrZQ2Vqtu/f09+4r6pkry3SBhDZWNTkY12hVfwCxpD2RlQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrMLMWRmVeSWpSXmKPExsWy7bCSvO6TLTviDG5MMrd4MG8bm8XLn1fZ LD6tX8ZqMf/IOVaL8+c3sFvc3HKUxWLT42usFpd3zWGzmHF+H5NF9/UdbBbLj/9jsvi/Zwe7 xdKtNxkdeD0u9/UyeWxa1cnmsXlJvUfLyf0sHh+f3mLx6NuyitHj8yY5j/YD3UwBHFFcNimp OZllqUX6dglcGR//bGMu2C5aMaPlKnsD413BLkZODgkBE4m1156xdTFycQgJ7GaU6Li5gxki IS1xfeMEdghbWGLlv+fsEEVNTBKNv5tZQBJsAtoSd6dvYQKxRYCKjnxrYwSxmQWeMUmcelgK YgsLBEgs/T0frJ5FQFWiZ9IaMJtXwEZi+/Z+qAXyEqs3HABbzClgKzGtYTtYjRBQzYxNm1kn MPItYGRYxSiZWlCcm55bbFhgmJdarlecmFtcmpeul5yfu4kRHM5amjsYt6/6oHeIkYmD8RCj BAezkgjv8twdcUK8KYmVValF+fFFpTmpxYcYpTlYlMR5bxQujBMSSE8sSc1OTS1ILYLJMnFw SjUw+S/ID024fTtx+YEF5h0rNi07kB2yvYarWlpf36abY/XZH0cUD57LPr5y4xyf27vEOP2b nsgkPan0nbb0j/w7xdhH/v4lcRNWxrhM158+M2WfxoW3666odd3a2m7ewrDd0yCSIyVQK/Hy /aWCtVYb62b4mHXcOd3AfGWJT6fclbgbSsyH18nVK7yQ+ZbuG25vwnxrfnmT+NosRRte+VwZ DimjU4ftw7bsPH670KB0qmvLi09MfzhuH0jUXWhd0mrzpbzo5rFevb/imcEyfTwfpr0yPK3Q uULzSqyg6dzQGdcfuugJNKw+PdXF5LbfO16V5wE56bpMM/tV1FclPso46G+21VVcWDjWZpvC 5QYlluKMREMt5qLiRACW9gw11gIAAA== X-CMS-MailID: 20200511021357epcas5p31ca197c25742a50359b076f10d4938cd X-Msg-Generator: CA CMS-TYPE: 105P X-CMS-RootMailID: 20200511021357epcas5p31ca197c25742a50359b076f10d4938cd References: <20200511020031.25730-1-alim.akhtar@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200510_191400_885310_463DB06B X-CRM114-Status: GOOD ( 15.43 ) X-Spam-Score: -5.4 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-5.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [203.254.224.25 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -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 -0.2 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: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, linux-kernel@vger.kernel.org, krzk@kernel.org, kwmad.kim@samsung.com, avri.altman@wdc.com, cang@codeaurora.org, Alim Akhtar , stanley.chu@mediatek.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Some UFS host controllers like Exynos uses granularities of PRDT length and offset as bytes, whereas others uses actual segment count. Reviewed-by: Avri Altman Signed-off-by: Kiwoong Kim Signed-off-by: Alim Akhtar --- drivers/scsi/ufs/ufshcd.c | 30 +++++++++++++++++++++++------- drivers/scsi/ufs/ufshcd.h | 6 ++++++ 2 files changed, 29 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index ee30ed6cc805..ba093d0d0942 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2151,8 +2151,14 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) return sg_segments; if (sg_segments) { - lrbp->utr_descriptor_ptr->prd_table_length = - cpu_to_le16((u16)sg_segments); + + if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) + lrbp->utr_descriptor_ptr->prd_table_length = + cpu_to_le16((sg_segments * + sizeof(struct ufshcd_sg_entry))); + else + lrbp->utr_descriptor_ptr->prd_table_length = + cpu_to_le16((u16) (sg_segments)); prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr; @@ -3500,11 +3506,21 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba) cpu_to_le32(upper_32_bits(cmd_desc_element_addr)); /* Response upiu and prdt offset should be in double words */ - utrdlp[i].response_upiu_offset = - cpu_to_le16(response_offset >> 2); - utrdlp[i].prd_table_offset = cpu_to_le16(prdt_offset >> 2); - utrdlp[i].response_upiu_length = - cpu_to_le16(ALIGNED_UPIU_SIZE >> 2); + if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { + utrdlp[i].response_upiu_offset = + cpu_to_le16(response_offset); + utrdlp[i].prd_table_offset = + cpu_to_le16(prdt_offset); + utrdlp[i].response_upiu_length = + cpu_to_le16(ALIGNED_UPIU_SIZE); + } else { + utrdlp[i].response_upiu_offset = + cpu_to_le16(response_offset >> 2); + utrdlp[i].prd_table_offset = + cpu_to_le16(prdt_offset >> 2); + utrdlp[i].response_upiu_length = + cpu_to_le16(ALIGNED_UPIU_SIZE >> 2); + } ufshcd_init_lrb(hba, &hba->lrb[i], i); } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index f8d08cb9caf7..a9b9ace9fc72 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -535,6 +535,12 @@ enum ufshcd_quirks { * enabled via HCE register. */ UFSHCI_QUIRK_BROKEN_HCE = 1 << 8, + + /* + * This quirk needs to be enabled if the host controller regards + * resolution of the values of PRDTO and PRDTL in UTRD as byte. + */ + UFSHCD_QUIRK_PRDT_BYTE_GRAN = 1 << 9, }; enum ufshcd_caps {