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Wed, 19 Mar 2025 08:30:35 -0700 (PDT) From: Peter Griffin Date: Wed, 19 Mar 2025 15:30:22 +0000 Subject: [PATCH v2 5/7] scsi: ufs: exynos: Enable PRDT pre-fetching with UFSHCD_CAP_CRYPTO Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250319-exynos-ufs-stability-fixes-v2-5-96722cc2ba1b@linaro.org> References: <20250319-exynos-ufs-stability-fixes-v2-0-96722cc2ba1b@linaro.org> In-Reply-To: <20250319-exynos-ufs-stability-fixes-v2-0-96722cc2ba1b@linaro.org> To: Alim Akhtar , "James E.J. Bottomley" , "Martin K. Petersen" , Krzysztof Kozlowski , Chanho Park Cc: linux-scsi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Eric Biggers , Bart Van Assche , willmcvicker@google.com, kernel-team@android.com, tudor.ambarus@linaro.org, andre.draszik@linaro.org, Peter Griffin X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1888; i=peter.griffin@linaro.org; h=from:subject:message-id; bh=meJ2NRXYTrgH1O0PZsicJBELBIeyADpQnFr+0uBOXCw=; b=owEBbQKS/ZANAwAKAc7ouNYCNHK6AcsmYgBn2uMRE20Q5ANasCRwuFnlZzMwCdJvDbk0vH/NI 8dr9BquauWJAjMEAAEKAB0WIQQO/I5vVXh1DVa1SfzO6LjWAjRyugUCZ9rjEQAKCRDO6LjWAjRy ui5vEACXBq0bqFMkUCLc92+siadp/QAjpVDOeVSbJHwT+Cmk7B9ZsJZTrROLNYvOfzD8gBNB5PN zzYuFEYIUSQchIQGiwl62xCh3YJ2vvxH+L2FuqiILWVx9aztYZ4vgv/xjQbJiwXMDYNfOKppURe T4hKRWySn2olNQ5K5tL+at0tIES0oYCOl1gMe3i5F6EdHDkauNsACg0x9cp49mwNTvaHXoKG1+K HdH9Y1VAmkF6xfCM+He7BlylF5t4hLDLhraMjf1avMM8+6JSZdEzvYWwbxW/htvWeS4ebKh9MsT sH6lwEDjT+XeErUt+BFGQdsxVTb0xxbuC3vEqsJtbCbH+RC6Qb28ksiN+zhSSGtldjO8Eid2dc8 4P1y5ijkVlVQF+aOw+/AjmYq+DhbQfVAORWLzGiDSz/4xUVbceDx8J2DHEHBGO/Y8PxkPpwpOwp OSaxshVmG8YagyrVTpc2ZaSC5Ryso+cgXsNzObgLUS1Oj91x+q1EpG1p2OwLXsmpxJCpPjKq/Ak xWC3tqrFD1Qx7uoWwEXlLiSduuX3aRzE6uwScIig984D0O2VDipXBrx8t/CF78Mu8vZoJ2JcqtG gDF6rMO2dbXrlY7PxeeBA7cPioGiCPg3+RZm2GgQV6pTO9rNqSHlw7KcCFccM2etD+g4CNlOBmS w63Hm9SJISK8soQ== X-Developer-Key: i=peter.griffin@linaro.org; a=openpgp; fpr=0EFC8E6F5578750D56B549FCCEE8B8D6023472BA PRDT_PREFETCH_ENABLE[31] bit should be set when desctype field of fmpsecurity0 register is type2 (double file encryption) or type3 (support for file and disk encryption). Setting this bit enables PRDT pre-fetching on both TXPRDT and RXPRDT. Signed-off-by: Peter Griffin --- Changes since v1: * Update PRDT_PREFECT_EN to PRDT_PREFETCH_EN (Bart) * Update commit description for desctype type 3 (Eric) --- drivers/ufs/host/ufs-exynos.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 34e16e198830d086cbdb6cb0b027ca92687b2ae6..f6980f05bd5555b351070fe33d0= afda469fe498c 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -34,7 +34,7 @@ * Exynos's Vendor specific registers for UFSHCI */ #define HCI_TXPRDT_ENTRY_SIZE 0x00 -#define PRDT_PREFECT_EN BIT(31) +#define PRDT_PREFETCH_EN BIT(31) #define HCI_RXPRDT_ENTRY_SIZE 0x04 #define HCI_1US_TO_CNT_VAL 0x0C #define CNT_VAL_1US_MASK 0x3FF @@ -1098,12 +1098,17 @@ static int exynos_ufs_post_link(struct ufs_hba *hba) struct exynos_ufs *ufs =3D ufshcd_get_variant(hba); struct phy *generic_phy =3D ufs->phy; struct exynos_ufs_uic_attr *attr =3D ufs->drv_data->uic_attr; + u32 val =3D ilog2(DATA_UNIT_SIZE); =20 exynos_ufs_establish_connt(ufs); exynos_ufs_fit_aggr_timeout(ufs); =20 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 |=3D PRDT_PREFETCH_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); --=20 2.49.0.rc1.451.g8f38331e32-goog