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Wed, 8 Jul 2020 11:31:56 +0900 (KST) Received: from ubuntu.dsn.sec.samsung.com (unknown [12.36.155.120]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20200708023156epsmtip2c495cb244fec98192ea3ad4a1b0e9ba7~fpi_jI41O0096600966epsmtip2P; Wed, 8 Jul 2020 02:31:56 +0000 (GMT) From: Kiwoong Kim To: linux-scsi@vger.kernel.org, alim.akhtar@samsung.com, avri.altman@wdc.com, jejb@linux.ibm.com, martin.petersen@oracle.com, beanhuo@micron.com, asutoshd@codeaurora.org, cang@codeaurora.org, bvanassche@acm.org, grant.jung@samsung.com, sc.suh@samsung.com, hy50.seo@samsung.com, sh425.lee@samsung.com Cc: Kiwoong Kim Subject: [RESEND RFC PATCH v4 3/3] ufs: exynos: implement dbg_register_dump Date: Wed, 8 Jul 2020 11:24:01 +0900 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: In-Reply-To: X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprDJsWRmVeSWpSXmKPExsWy7bCmua6sAWu8wenDXBYP5m1js9jbdoLd 4uXPq2wWBx92slhM+/CT2eLT+mWsFr/+rme3WL34AYvFohvbmCxubjnKYtF9fQebxfLj/5gs uu7eYLRY+u8tiwOfx+Ur3h6X+3qZPCYsOsDo8X19B5vHx6e3WDz6tqxi9Pi8Sc6j/UA3UwBH VI5NRmpiSmqRQmpecn5KZl66rZJ3cLxzvKmZgaGuoaWFuZJCXmJuqq2Si0+ArltmDtDdSgpl iTmlQKGAxOJiJX07m6L80pJUhYz84hJbpdSClJwCQ8MCveLE3OLSvHS95PxcK0MDAyNToMqE nIzOBw/YC5bxVDw/MJ25gXEpVxcjJ4eEgInEtc6ZrF2MXBxCAjsYJRr+7GGHcD4xSiw7sgzK +cwo0XNoNRtMy5XXJxkhErsYJR7Nmc8E4fxglPi/YAVYFZuApsTTm1PBEiICm5kkXi24zwyS YBZQl9g14QQTiC0s4C2xevZBsAYWAVWJ1rWT2UFsXoFoiW2nmlkg1slJ3DzXCdbLKWAp8fJH FzsqmwuoZiqHxPWTu6EaXCR6nlxlh7CFJV4d3wJlS0l8frcX6od6iX1TG1ghmnsYJZ7u+8cI kTCWmPWsHcjmALpUU2L9Ln0QU0JAWeLILRaI+/kkOg7/ZYcI80p0tAlBNCpL/Jo0GWqIpMTM m3egtnpInDz1iwUSQECbbn+6wjyBUX4WwoIFjIyrGMVSC4pz01OLjQqMkeNvEyM4mWq572Cc 8faD3iFGJg7GQ4wSHMxKIrwGiqzxQrwpiZVVqUX58UWlOanFhxhNgQE5kVlKNDkfmM7zSuIN TY3MzAwsTS1MzYwslMR5i60uxAkJpCeWpGanphakFsH0MXFwSjUw1bZf7DSTBkrISW1ivfI0 7dLj5+uXiNx9fum5bYvJLdUMxvvOMpWLOVRKXFuZmbbXWnZqu/tUbnj075aA+OLNkyc/C+Xq vFMi7T3l+xIfp+pQ7mW2BYen3UzfvKxz0QVN59ouz47Lvhtu3w5RPa6x/1BXV29IXRWHpq/H q7gal83z41j4z5VXHWf0frzt/Peo/HdXVs0rU//ePKVQbL5FVL50WcjlszMD1A55RxU+ftq5 QPWTCstXrVQL51vSxx7M7fER1o/hntZlVu3toqu2lq9wT1XM9JuhG2Wzg4/O3GowN+7kgq7j HjdTBdtevJWfMbX/JkupyAwtIQm1T/fufGdYqvhaJZ93ktjGR0osxRmJhlrMRcWJAA3Jj/Ev BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrALMWRmVeSWpSXmKPExsWy7bCSvK6MAWu8wcQTehYP5m1js9jbdoLd 4uXPq2wWBx92slhM+/CT2eLT+mWsFr/+rme3WL34AYvFohvbmCxubjnKYtF9fQebxfLj/5gs uu7eYLRY+u8tiwOfx+Ur3h6X+3qZPCYsOsDo8X19B5vHx6e3WDz6tqxi9Pi8Sc6j/UA3UwBH FJdNSmpOZllqkb5dAldG54MH7AXLeCqeH5jO3MC4lKuLkZNDQsBE4srrk4xdjFwcQgI7GCXe Hl7GBJGQlDix8zkjhC0scb/lCCuILSTwjVFi18syEJtNQFPi6c2pTCDNIgKHmST+b33ODpJg FlCX2DXhBNggYQFvidWzD7KB2CwCqhKtayeD1fAKREtsO9XMArFATuLmuU5mEJtTwFLi5Y8u dohlFhL39vcz4RKfwCiwgJFhFaNkakFxbnpusWGBUV5quV5xYm5xaV66XnJ+7iZGcCRoae1g 3LPqg94hRiYOxkOMEhzMSiK8Boqs8UK8KYmVValF+fFFpTmpxYcYpTlYlMR5v85aGCckkJ5Y kpqdmlqQWgSTZeLglGpgUn+89+WOJIV2jmNK87Jspz3oXO8qkLQz5/+pviqRCVbV62xy/M6b 7f6ZpqwRfjtgyinPJdGhx1QmqmdsY2+98MLsZf3bLxHXri7UnuH6c5LYtIiQyuxZoS/W36m/ eMtDdteHnpu5P7KOFQanpDvkM3UeKHpxOIP7VKD6FN4nBiyLfq7/WfmU00Zpsv9+eRPOFalT 1rfdSNhiprZskQbXuo//yg5cOJlcOevPlvm3BDpmWATEura2Gjw4q8h1+VWxJOv14lmWgXvk jNZ5GQvNU/328dCX5prdgh5/dqqoegievvhLQ/vVi4zV082DJVM/pd3sWyy0+GX4833ZHzWe ix8oap4Xk+2xmj0/y7JgpRJLcUaioRZzUXEiAGOooLTzAgAA X-CMS-MailID: 20200708023156epcas2p188781afcff94b548918326986d58a2d7 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20200708023156epcas2p188781afcff94b548918326986d58a2d7 References: Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org At present, I just add command history print and you can add various vendor regions. Signed-off-by: Kiwoong Kim --- drivers/scsi/ufs/ufs-exynos.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c index 8c60f7d..815c361 100644 --- a/drivers/scsi/ufs/ufs-exynos.c +++ b/drivers/scsi/ufs/ufs-exynos.c @@ -1246,6 +1246,29 @@ static int exynos_ufs_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) return 0; } +static void exynos_ufs_dbg_register_dump(struct ufs_hba *hba) +{ + struct exynos_ufs *ufs = ufshcd_get_variant(hba); + unsigned long flags; + + spin_lock_irqsave(&ufs->dbg_lock, flags); + if (ufs->under_dump == 0) + ufs->under_dump = 1; + else { + spin_unlock_irqrestore(&ufs->dbg_lock, flags); + goto out; + } + spin_unlock_irqrestore(&ufs->dbg_lock, flags); + + exynos_ufs_dump_info(&ufs->handle, hba->dev); + + spin_lock_irqsave(&ufs->dbg_lock, flags); + ufs->under_dump = 0; + spin_unlock_irqrestore(&ufs->dbg_lock, flags); +out: + return; +} + static struct ufs_hba_variant_ops ufs_hba_exynos_ops = { .name = "exynos_ufs", .init = exynos_ufs_init, @@ -1258,6 +1281,7 @@ static struct ufs_hba_variant_ops ufs_hba_exynos_ops = { .hibern8_notify = exynos_ufs_hibern8_notify, .suspend = exynos_ufs_suspend, .resume = exynos_ufs_resume, + .dbg_register_dump = exynos_ufs_dbg_register_dump, }; static int exynos_ufs_probe(struct platform_device *pdev) -- 2.7.4