crypto: marvell - add Marvell OcteonTX2 CPT PF driver

Adds skeleton for the Marvell OcteonTX2 CPT physical function
driver which includes probe, PCI specific initialization and
hardware register defines.
RVU defines are present in AF driver
(drivers/net/ethernet/marvell/octeontx2/af), header files from
AF driver are included here to avoid duplication.

Signed-off-by: Suheil Chandran <schandran@marvell.com>
Signed-off-by: Lukasz Bartosik <lbartosik@marvell.com>
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: SruChalla

drivers/crypto/marvell/Kconfig

@@ -35,3 +35,13 @@ config CRYPTO_DEV_OCTEONTX_CPT
 
 		To compile this driver as module, choose M here:
 		the modules will be called octeontx-cpt and octeontx-cptvf
+
+config CRYPTO_DEV_OCTEONTX2_CPT
+	tristate "Marvell OcteonTX2 CPT driver"
+	depends on ARM64 || COMPILE_TEST
+	depends on PCI_MSI && 64BIT
+	select OCTEONTX2_MBOX
+	select CRYPTO_DEV_MARVELL
+	help
+		This driver allows you to utilize the Marvell Cryptographic
+		Accelerator Unit(CPT) found in OcteonTX2 series of processors.

drivers/crypto/marvell/Makefile

@@ -2,3 +2,4 @@
 
 obj-$(CONFIG_CRYPTO_DEV_MARVELL_CESA) += cesa/
 obj-$(CONFIG_CRYPTO_DEV_OCTEONTX_CPT) += octeontx/
+obj-$(CONFIG_CRYPTO_DEV_OCTEONTX2_CPT) += octeontx2/

drivers/crypto/marvell/octeontx2/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_CRYPTO_DEV_OCTEONTX2_CPT) += octeontx2-cpt.o
+
+octeontx2-cpt-objs := otx2_cptpf_main.o
+
+ccflags-y += -I$(srctree)/drivers/net/ethernet/marvell/octeontx2/af

drivers/crypto/marvell/octeontx2/otx2_cpt_common.h

@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ * Copyright (C) 2020 Marvell.
+ */
+
+#ifndef __OTX2_CPT_COMMON_H
+#define __OTX2_CPT_COMMON_H
+
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/crypto.h>
+#include "otx2_cpt_hw_types.h"
+#include "rvu.h"
+
+#define OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs) \
+		(((blk) << 20) | ((slot) << 12) | (offs))
+
+static inline void otx2_cpt_write64(void __iomem *reg_base, u64 blk, u64 slot,
+				    u64 offs, u64 val)
+{
+	writeq_relaxed(val, reg_base +
+		       OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs));
+}
+
+static inline u64 otx2_cpt_read64(void __iomem *reg_base, u64 blk, u64 slot,
+				  u64 offs)
+{
+	return readq_relaxed(reg_base +
+			     OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs));
+}
+#endif /* __OTX2_CPT_COMMON_H */