[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20250226220414.343659-5-peter.griffin@linaro.org>
Date: Wed, 26 Feb 2025 22:04:12 +0000
From: Peter Griffin <peter.griffin@...aro.org>
To: alim.akhtar@...sung.com,
James.Bottomley@...senPartnership.com,
martin.petersen@...cle.com,
krzk@...nel.org
Cc: linux-scsi@...r.kernel.org,
linux-samsung-soc@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
willmcvicker@...gle.com,
tudor.ambarus@...aro.org,
andre.draszik@...aro.org,
ebiggers@...nel.org,
bvanassche@....org,
kernel-team@...roid.com,
Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 4/6] scsi: ufs: exynos: Enable PRDT pre-fetching with UFSHCD_CAP_CRYPTO
PRDT_PREFETCH_ENABLE[31] bit should be set when desctype field of
fmpsecurity0 register is type2 (double file encryption) or type3
(file and disk excryption). Setting this bit enables PRDT
pre-fetching on both TXPRDT and RXPRDT.
Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
drivers/ufs/host/ufs-exynos.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 943cea569f66..27eb360458a7 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1098,12 +1098,17 @@ static int exynos_ufs_post_link(struct ufs_hba *hba)
struct exynos_ufs *ufs = ufshcd_get_variant(hba);
struct phy *generic_phy = ufs->phy;
struct exynos_ufs_uic_attr *attr = ufs->drv_data->uic_attr;
+ u32 val = ilog2(DATA_UNIT_SIZE);
exynos_ufs_establish_connt(ufs);
exynos_ufs_fit_aggr_timeout(ufs);
hci_writel(ufs, 0xa, HCI_DATA_REORDER);
- hci_writel(ufs, ilog2(DATA_UNIT_SIZE), HCI_TXPRDT_ENTRY_SIZE);
+
+ if (hba->caps & UFSHCD_CAP_CRYPTO)
+ val |= PRDT_PREFECT_EN;
+ hci_writel(ufs, val, HCI_TXPRDT_ENTRY_SIZE);
+
hci_writel(ufs, ilog2(DATA_UNIT_SIZE), HCI_RXPRDT_ENTRY_SIZE);
hci_writel(ufs, (1 << hba->nutrs) - 1, HCI_UTRL_NEXUS_TYPE);
hci_writel(ufs, (1 << hba->nutmrs) - 1, HCI_UTMRL_NEXUS_TYPE);
--
2.48.1.658.g4767266eb4-goog
Powered by blists - more mailing lists