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Tue, 25 Aug 2020 01:52:00 +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: [PATCH v3 0/2] ufs: introduce skipping manual flush for wb Date: Tue, 25 Aug 2020 10:43:14 +0900 Message-Id: X-Mailer: git-send-email 2.7.4 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpkk+LIzCtJLcpLzFFi42LZdljTTPdgnku8wfUV7BYP5m1js9jbdoLd 4uXPq2wWBx92slhM+/CT2eLT+mWsFr/+rme3WL34AYvFohvbmCxubjnKYtF9fQebxfLj/5gs uu7eYLRY+u8tiwOfx+Ur3h6X+3qZPCYsOsDo8X19B5vHx6e3WDz6tqxi9Pi8Sc6j/UA3UwBH VI5NRmpiSmqRQmpecn5KZl66rZJ3cLxzvKmZgaGuoaWFuZJCXmJuqq2Si0+ArltmDtDdSgpl iTmlQKGAxOJiJX07m6L80pJUhYz84hJbpdSClJwCQ8MCveLE3OLSvHS95PxcK0MDAyNToMqE nIz3G/kLVrNXPD3ymLmBsZWti5GTQ0LARGLpuTtANheHkMAORomGCQ/ZIZxPjBLP1/5lgnA+ M0pcft3NBNOybME5qMQuRom151ZBOT8YJR5+fcoOUsUmoCnx9OZUsISIwGYmiVcL7jODJJgF 1CV2TTgBNkpYwFni2uYpYDaLgKrEi4stYFfxClhITPo/mwVinZzEzXOdzCCDJAR+sktc2P8A 6nQXiSsfnjBC2MISr45vYYewpSRe9rdB2fUS+6Y2sEI09zBKPN33D6rBWGLWs3YgmwPoIk2J 9bv0QUwJAWWJI7dYIO7kk+g4/JcdIswr0dEmBNGoLPFr0mSoIZISM2/egdrkIXFkZRsTSLmQ QKzEghlmExhlZyGMX8DIuIpRLLWgODc9tdiowAg5kjYxgtOiltsOxilvP+gdYmTiYDzEKMHB rCTCK3jROV6INyWxsiq1KD++qDQntfgQoykwuCYyS4km5wMTc15JvKGpkZmZgaWphamZkYWS OG+94oU4IYH0xJLU7NTUgtQimD4mDk6pBqaGwz0iz1k8XG49X3Rt89HbfrMaYuZoHQtbLZzx PI7RSzi94BGz23zT7uqHva4Ourts+aqjHqtJLOjJDZn4WVVQen1UOePq6VdFOgomsCzQVnvY Vn+7mdPAKLRq1mWjEDMG35VBtWy3jKbdXtzQcTpQ495x4RfXdF5oB0VPsGKf+scgXSfEYVFg 5R9ft+0cU37PaL3+LdJzYvvGE113e5U2NibO8XBdorh60zXl2xrxWXcd1r35v7xvZcn1Kcyt TktXGK+YbnnwMZ+ZSfntt1nPtxxlnrvf0KU8TOZ2h/F3uYXfjZJmvV9gsEbmivbjAx+O/t16 ZnPoj1k6E39fE529P8XhueiCU9LJ6bY6QdJKLMUZiYZazEXFiQBC3jolFAQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrALMWRmVeSWpSXmKPExsWy7bCSvO6BPJd4g+4rIhYP5m1js9jbdoLd 4uXPq2wWBx92slhM+/CT2eLT+mWsFr/+rme3WL34AYvFohvbmCxubjnKYtF9fQebxfLj/5gs uu7eYLRY+u8tiwOfx+Ur3h6X+3qZPCYsOsDo8X19B5vHx6e3WDz6tqxi9Pi8Sc6j/UA3UwBH FJdNSmpOZllqkb5dAlfG+438BavZK54eeczcwNjK1sXIySEhYCKxbME5pi5GLg4hgR2MEl/2 /WSFSEhKnNj5nBHCFpa433KEFaLoG6PEtt37WEASbAKaEk9vTgXrFhE4zCTxf+tzdpAEs4C6 xK4JJ5hAbGEBZ4lrm6eA2SwCqhIvLraAreYVsJCY9H82C8QGOYmb5zqZJzDyLGBkWMUomVpQ nJueW2xYYJSXWq5XnJhbXJqXrpecn7uJERyoWlo7GPes+qB3iJGJg/EQowQHs5IIr+BF53gh 3pTEyqrUovz4otKc1OJDjNIcLErivF9nLYwTEkhPLEnNTk0tSC2CyTJxcEo1MNkULd+6bUv+ W6+Dwn9iKlYFTs+6s6fINv85973MbiVViU97l/NZPeuT/LRzAcc7OeuHCUurWB1WLQg82vd9 seYXq96Ms9vOPAhVtj0sOYOjK11vEZ8q+8/VYedYrqztvzK5asqZR59MEl4nLa74c3qJmLm+ xktJ94xd3+JOhRxaJZryftfPCWvvfv8S4GFpIz1xpbndquUvG3+e4e7/5h0v+H+yw9m9Pn1P 33VccV43/fGf/DMXtG+Xb779e3eVRK18mPu3wK/sqgtZn69ueHNVUD1xDVfdpMP6P9rrLRZW 2y9K4TqXY+8wN0d1UuKVc/+eCeX598UfXHjo9O6Lelt+vuk4xmh6+IF6qOWrjy/3K7EUZyQa ajEXFScCAJU1SQ/DAgAA X-CMS-MailID: 20200825015200epcas2p2aef1427e960c86e7da08dc4608f20e26 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: 20200825015200epcas2p2aef1427e960c86e7da08dc4608f20e26 References: Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org v1 -> v2: enable the quirk in exynos v2 -> v3: modify some commit messages We have two knobs to flush for write booster, i.e. fWriteBoosterBufferFlushDuringHibernate and fWriteBoosterBufferFlushEn. However, many product makers uses only fWriteBoosterBufferFlushDuringHibernate, because this can reportedly cover most scenarios and there have been some reports that flush by fWriteBoosterBufferFlushEn could lead to raise power consumption thanks to unexpected internal operations. So we need a way to enable or disable fWriteBoosterEn operations. For those case, this quirk will allow to avoid manual flush Kiwoong Kim (2): ufs: introduce skipping manual flush for wb ufs: exynos: enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL drivers/scsi/ufs/ufs-exynos.c | 3 ++- drivers/scsi/ufs/ufshcd.c | 3 +++ drivers/scsi/ufs/ufshcd.h | 5 +++++ 3 files changed, 10 insertions(+), 1 deletion(-) -- 2.7.4