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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: linux-crypto@vger.kernel.org
Cc: "Andrey Smirnov" <andrew.smirnov@gmail.com>,
	"Horia Geantă" <horia.geanta@nxp.com>,
	"Chris Spencer" <christopher.spencer@sea.co.uk>,
	"Cory Tusar" <cory.tusar@zii.aero>,
	"Chris Healy" <cphealy@gmail.com>,
	"Lucas Stach" <l.stach@pengutronix.de>,
	"Aymen Sghaier" <aymen.sghaier@nxp.com>,
	"Leonard Crestez" <leonard.crestez@nxp.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v7 06/15] crypto: caam - use ioread64*_hi_lo in rd_reg64
Date: Mon, 12 Aug 2019 13:07:30 -0700
Message-ID: <20190812200739.30389-7-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190812200739.30389-1-andrew.smirnov@gmail.com>

Following the same transformation logic as outlined in previous commit
converting wr_reg64, convert rd_reg64 to use helpers from
<linux/io-64-nonatomic-hi-lo.h> first. No functional change intended.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Cc: Chris Spencer <christopher.spencer@sea.co.uk>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/crypto/caam/regs.h | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 6e8352ac0d92..afdc0d1aa338 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -172,12 +172,20 @@ static inline void wr_reg64(void __iomem *reg, u64 data)
 
 static inline u64 rd_reg64(void __iomem *reg)
 {
-	if (!caam_imx && caam_little_end)
-		return ((u64)rd_reg32((u32 __iomem *)(reg) + 1) << 32 |
-			(u64)rd_reg32((u32 __iomem *)(reg)));
+	if (caam_little_end) {
+		if (caam_imx) {
+			u32 low, high;
 
-	return ((u64)rd_reg32((u32 __iomem *)(reg)) << 32 |
-		(u64)rd_reg32((u32 __iomem *)(reg) + 1));
+			high = ioread32(reg);
+			low  = ioread32(reg + sizeof(u32));
+
+			return low + ((u64)high << 32);
+		} else {
+			return ioread64(reg);
+		}
+	} else {
+		return ioread64be(reg);
+	}
 }
 #endif /* CONFIG_64BIT  */
 
-- 
2.21.0


  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-12 20:07 [PATCH v7 00/15] crypto: caam - Add i.MX8MQ support Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 01/15] crypto: caam - move DMA mask selection into a function Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 02/15] crypto: caam - simplfy clock initialization Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 03/15] crypto: caam - convert caam_jr_init() to use devres Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 04/15] crypto: caam - request JR IRQ as the last step Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 05/15] crytpo: caam - make use of iowrite64*_hi_lo in wr_reg64 Andrey Smirnov
2019-08-12 20:07 ` Andrey Smirnov [this message]
2019-08-12 20:07 ` [PATCH v7 07/15] crypto: caam - drop 64-bit only wr/rd_reg64() Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 08/15] crypto: caam - share definition for MAX_SDLEN Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 09/15] crypto: caam - make CAAM_PTR_SZ dynamic Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 10/15] crypto: caam - move cpu_to_caam_dma() selection to runtime Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 11/15] crypto: caam - drop explicit usage of struct jr_outentry Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 12/15] crypto: caam - don't hardcode inpentry size Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 13/15] crypto: caam - force DMA address to 32-bit on 64-bit i.MX SoCs Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 14/15] crypto: caam - always select job ring via RSR on i.MX8MQ Andrey Smirnov
2019-08-12 20:07 ` [PATCH v7 15/15] crypto: caam - add clock entry for i.MX8MQ Andrey Smirnov
2019-08-13 13:59 ` [PATCH v7 00/15] crypto: caam - Add i.MX8MQ support Horia Geanta
2019-08-13 18:51   ` Andrey Smirnov
2019-08-14 10:26     ` Horia Geanta

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