From: SrujanaChalla <schalla@xxxxxxxxxxx>
Add support for the cryptographic acceleration unit (CPT) on
OcteonTX CN83XX SoC.
Co-developed-by: Lukasz Bartosik <lbartosik@xxxxxxxxxxx>
Signed-off-by: Lukasz Bartosik <lbartosik@xxxxxxxxxxx>
Signed-off-by: SrujanaChalla <schalla@xxxxxxxxxxx>
---
MAINTAINERS | 1 +
drivers/crypto/marvell/octeontx/Makefile | 4 +
drivers/crypto/marvell/octeontx/otx_cpt_common.h | 51 +
drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h | 249 +++
drivers/crypto/marvell/octeontx/otx_cptpf.h | 34 +
drivers/crypto/marvell/octeontx/otx_cptpf_main.c | 307 ++++
drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c | 253 +++
drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c | 1686 ++++++++++++++++++++
drivers/crypto/marvell/octeontx/otx_cptpf_ucode.h | 180 +++
9 files changed, 2765 insertions(+)
create mode 100644 drivers/crypto/marvell/octeontx/Makefile
create mode 100644 drivers/crypto/marvell/octeontx/otx_cpt_common.h
create mode 100644 drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h
create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf.h
create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf_main.c
create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c
create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf_ucode.h
diff --git a/MAINTAINERS b/MAINTAINERS
index a0c1618..41b616e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9906,6 +9906,7 @@ F: Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
MARVELL CRYPTO DRIVER
M: Boris Brezillon <bbrezillon@xxxxxxxxxx>
M: Arnaud Ebalard <arno@xxxxxxxxxxxx>
+M: Srujana Challa <schalla@xxxxxxxxxxx>
F: drivers/crypto/marvell/
S: Maintained
L: linux-crypto@xxxxxxxxxxxxxxx
diff --git a/drivers/crypto/marvell/octeontx/Makefile b/drivers/crypto/marvell/octeontx/Makefile
new file mode 100644
index 0000000..627d00e
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CRYPTO_DEV_OCTEONTX_CPT) += octeontx-cpt.o
+
+octeontx-cpt-objs := otx_cptpf_main.o otx_cptpf_mbox.o otx_cptpf_ucode.o
diff --git a/drivers/crypto/marvell/octeontx/otx_cpt_common.h b/drivers/crypto/marvell/octeontx/otx_cpt_common.h
new file mode 100644
index 0000000..ca704a7
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cpt_common.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OTX_CPT_COMMON_H
+#define __OTX_CPT_COMMON_H
+
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+
+#define OTX_CPT_MAX_MBOX_DATA_STR_SIZE 64
+
+enum otx_cptpf_type {
+ OTX_CPT_AE = 2,
+ OTX_CPT_SE = 3,
+ BAD_OTX_CPTPF_TYPE,
+};
+
+enum otx_cptvf_type {
+ OTX_CPT_AE_TYPES = 1,
+ OTX_CPT_SE_TYPES = 2,
+ BAD_OTX_CPTVF_TYPE,
+};
+
+/* VF-PF message opcodes */
+enum otx_cpt_mbox_opcode {
+ OTX_CPT_MSG_VF_UP = 1,
+ OTX_CPT_MSG_VF_DOWN,
+ OTX_CPT_MSG_READY,
+ OTX_CPT_MSG_QLEN,
+ OTX_CPT_MSG_QBIND_GRP,
+ OTX_CPT_MSG_VQ_PRIORITY,
+ OTX_CPT_MSG_PF_TYPE,
+ OTX_CPT_MSG_ACK,
+ OTX_CPT_MSG_NACK
+};
+
+/* OcteonTX CPT mailbox structure */
+struct otx_cpt_mbox {
+ u64 msg; /* Message type MBOX[0] */
+ u64 data;/* Data MBOX[1] */
+};
+
+#endif /* __OTX_CPT_COMMON_H */
diff --git a/drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h b/drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h
new file mode 100644
index 0000000..bec483f
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h
@@ -0,0 +1,249 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OTX_CPT_HW_TYPES_H
+#define __OTX_CPT_HW_TYPES_H
+
+#include <linux/types.h>
+
+/* Device IDs */
+#define OTX_CPT_PCI_PF_DEVICE_ID 0xa040
+
+#define OTX_CPT_PCI_PF_SUBSYS_ID 0xa340
+
+/* Configuration and status registers are in BAR0 on OcteonTX platform */
+#define OTX_CPT_PF_PCI_CFG_BAR 0
+/* Mailbox interrupts offset */
+#define OTX_CPT_PF_MBOX_INT 3
+#define OTX_CPT_PF_INT_VEC_E_MBOXX(x, a) ((x) + (a))
+/* Number of MSIX supported in PF */
+#define OTX_CPT_PF_MSIX_VECTORS 4
+/* Maximum supported microcode groups */
+#define OTX_CPT_MAX_ENGINE_GROUPS 8
+
+/* OcteonTX CPT PF registers */
+#define OTX_CPT_PF_CONSTANTS (0x0ll)
+#define OTX_CPT_PF_RESET (0x100ll)
+#define OTX_CPT_PF_DIAG (0x120ll)
+#define OTX_CPT_PF_BIST_STATUS (0x160ll)
+#define OTX_CPT_PF_ECC0_CTL (0x200ll)
+#define OTX_CPT_PF_ECC0_FLIP (0x210ll)
+#define OTX_CPT_PF_ECC0_INT (0x220ll)
+#define OTX_CPT_PF_ECC0_INT_W1S (0x230ll)
+#define OTX_CPT_PF_ECC0_ENA_W1S (0x240ll)
+#define OTX_CPT_PF_ECC0_ENA_W1C (0x250ll)
+#define OTX_CPT_PF_MBOX_INTX(b) (0x400ll | (u64)(b) << 3)
+#define OTX_CPT_PF_MBOX_INT_W1SX(b) (0x420ll | (u64)(b) << 3)
+#define OTX_CPT_PF_MBOX_ENA_W1CX(b) (0x440ll | (u64)(b) << 3)
+#define OTX_CPT_PF_MBOX_ENA_W1SX(b) (0x460ll | (u64)(b) << 3)
+#define OTX_CPT_PF_EXEC_INT (0x500ll)
+#define OTX_CPT_PF_EXEC_INT_W1S (0x520ll)
+#define OTX_CPT_PF_EXEC_ENA_W1C (0x540ll)
+#define OTX_CPT_PF_EXEC_ENA_W1S (0x560ll)
+#define OTX_CPT_PF_GX_EN(b) (0x600ll | (u64)(b) << 3)
+#define OTX_CPT_PF_EXEC_INFO (0x700ll)
+#define OTX_CPT_PF_EXEC_BUSY (0x800ll)
+#define OTX_CPT_PF_EXEC_INFO0 (0x900ll)
+#define OTX_CPT_PF_EXEC_INFO1 (0x910ll)
+#define OTX_CPT_PF_INST_REQ_PC (0x10000ll)
+#define OTX_CPT_PF_INST_LATENCY_PC (0x10020ll)
+#define OTX_CPT_PF_RD_REQ_PC (0x10040ll)
+#define OTX_CPT_PF_RD_LATENCY_PC (0x10060ll)
+#define OTX_CPT_PF_RD_UC_PC (0x10080ll)
+#define OTX_CPT_PF_ACTIVE_CYCLES_PC (0x10100ll)
+#define OTX_CPT_PF_EXE_CTL (0x4000000ll)
+#define OTX_CPT_PF_EXE_STATUS (0x4000008ll)
+#define OTX_CPT_PF_EXE_CLK (0x4000010ll)
+#define OTX_CPT_PF_EXE_DBG_CTL (0x4000018ll)
+#define OTX_CPT_PF_EXE_DBG_DATA (0x4000020ll)
+#define OTX_CPT_PF_EXE_BIST_STATUS (0x4000028ll)
+#define OTX_CPT_PF_EXE_REQ_TIMER (0x4000030ll)
+#define OTX_CPT_PF_EXE_MEM_CTL (0x4000038ll)
+#define OTX_CPT_PF_EXE_PERF_CTL (0x4001000ll)
+#define OTX_CPT_PF_EXE_DBG_CNTX(b) (0x4001100ll | (u64)(b) << 3)
+#define OTX_CPT_PF_EXE_PERF_EVENT_CNT (0x4001180ll)
+#define OTX_CPT_PF_EXE_EPCI_INBX_CNT(b) (0x4001200ll | (u64)(b) << 3)
+#define OTX_CPT_PF_EXE_EPCI_OUTBX_CNT(b) (0x4001240ll | (u64)(b) << 3)
+#define OTX_CPT_PF_ENGX_UCODE_BASE(b) (0x4002000ll | (u64)(b) << 3)
+#define OTX_CPT_PF_QX_CTL(b) (0x8000000ll | (u64)(b) << 20)
+#define OTX_CPT_PF_QX_GMCTL(b) (0x8000020ll | (u64)(b) << 20)
+#define OTX_CPT_PF_QX_CTL2(b) (0x8000100ll | (u64)(b) << 20)
+#define OTX_CPT_PF_VFX_MBOXX(b, c) (0x8001000ll | (u64)(b) << 20 | \
+ (u64)(c) << 8)
+
+/*
+ * Register (NCB) otx_cpt#_pf_bist_status
+ *
+ * CPT PF Control Bist Status Register
+ * This register has the BIST status of memories. Each bit is the BIST result
+ * of an individual memory (per bit, 0 = pass and 1 = fail).
+ * otx_cptx_pf_bist_status_s
+ * Word0
+ * bstatus [29:0](RO/H) BIST status. One bit per memory, enumerated by
+ * CPT_RAMS_E.
+ */
+union otx_cptx_pf_bist_status {
+ u64 u;
+ struct otx_cptx_pf_bist_status_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ u64 reserved_30_63:34;
+ u64 bstatus:30;
+#else /* Word 0 - Little Endian */
+ u64 bstatus:30;
+ u64 reserved_30_63:34;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/*
+ * Register (NCB) otx_cpt#_pf_constants
+ *
+ * CPT PF Constants Register
+ * This register contains implementation-related parameters of CPT in CNXXXX.
+ * otx_cptx_pf_constants_s
+ * Word 0
+ * reserved_40_63:24 [63:40] Reserved.
+ * epcis:8 [39:32](RO) Number of EPCI busses.
+ * grps:8 [31:24](RO) Number of engine groups implemented.
+ * ae:8 [23:16](RO/H) Number of AEs. In CNXXXX, for CPT0 returns 0x0,
+ * for CPT1 returns 0x18, or less if there are fuse-disables.
+ * se:8 [15:8](RO/H) Number of SEs. In CNXXXX, for CPT0 returns 0x30,
+ * or less if there are fuse-disables, for CPT1 returns 0x0.
+ * vq:8 [7:0](RO) Number of VQs.
+ */
+union otx_cptx_pf_constants {
+ u64 u;
+ struct otx_cptx_pf_constants_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ u64 reserved_40_63:24;
+ u64 epcis:8;
+ u64 grps:8;
+ u64 ae:8;
+ u64 se:8;
+ u64 vq:8;
+#else /* Word 0 - Little Endian */
+ u64 vq:8;
+ u64 se:8;
+ u64 ae:8;
+ u64 grps:8;
+ u64 epcis:8;
+ u64 reserved_40_63:24;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/*
+ * Register (NCB) otx_cpt#_pf_exe_bist_status
+ *
+ * CPT PF Engine Bist Status Register
+ * This register has the BIST status of each engine. Each bit is the
+ * BIST result of an individual engine (per bit, 0 = pass and 1 = fail).
+ * otx_cptx_pf_exe_bist_status_s
+ * Word0
+ * reserved_48_63:16 [63:48] reserved
+ * bstatus:48 [47:0](RO/H) BIST status. One bit per engine.
+ *
+ */
+union otx_cptx_pf_exe_bist_status {
+ u64 u;
+ struct otx_cptx_pf_exe_bist_status_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ u64 reserved_48_63:16;
+ u64 bstatus:48;
+#else /* Word 0 - Little Endian */
+ u64 bstatus:48;
+ u64 reserved_48_63:16;
+#endif /* Word 0 - End */
+ } s;
+};
+
+/*
+ * Register (NCB) otx_cpt#_pf_q#_ctl
+ *
+ * CPT Queue Control Register
+ * This register configures queues. This register should be changed only
+ * when quiescent (see CPT()_VQ()_INPROG[INFLIGHT]).
+ * otx_cptx_pf_qx_ctl_s
+ * Word0
+ * reserved_60_63:4 [63:60] reserved.
+ * aura:12; [59:48](R/W) Guest-aura for returning this queue's
+ * instruction-chunk buffers to FPA. Only used when [INST_FREE] is set.
+ * For the FPA to not discard the request, FPA_PF_MAP() must map
+ * [AURA] and CPT()_PF_Q()_GMCTL[GMID] as valid.
+ * reserved_45_47:3 [47:45] reserved.
+ * size:13 [44:32](R/W) Command-buffer size, in number of 64-bit words per
+ * command buffer segment. Must be 8*n + 1, where n is the number of
+ * instructions per buffer segment.
+ * reserved_11_31:21 [31:11] Reserved.
+ * cont_err:1 [10:10](R/W) Continue on error.
+ * 0 = When CPT()_VQ()_MISC_INT[NWRP], CPT()_VQ()_MISC_INT[IRDE] or
+ * CPT()_VQ()_MISC_INT[DOVF] are set by hardware or software via
+ * CPT()_VQ()_MISC_INT_W1S, then CPT()_VQ()_CTL[ENA] is cleared. Due to
+ * pipelining, additional instructions may have been processed between the
+ * instruction causing the error and the next instruction in the disabled
+ * queue (the instruction at CPT()_VQ()_SADDR).
+ * 1 = Ignore errors and continue processing instructions.
+ * For diagnostic use only.
+ * inst_free:1 [9:9](R/W) Instruction FPA free. When set, when CPT reaches the
+ * end of an instruction chunk, that chunk will be freed to the FPA.
+ * inst_be:1 [8:8](R/W) Instruction big-endian control. When set, instructions,
+ * instruction next chunk pointers, and result structures are stored in
+ * big-endian format in memory.
+ * iqb_ldwb:1 [7:7](R/W) Instruction load don't write back.
+ * 0 = The hardware issues NCB transient load (LDT) towards the cache,
+ * which if the line hits and is is dirty will cause the line to be
+ * written back before being replaced.
+ * 1 = The hardware issues NCB LDWB read-and-invalidate command towards
+ * the cache when fetching the last word of instructions; as a result the
+ * line will not be written back when replaced. This improves
+ * performance, but software must not read the instructions after they are
+ * posted to the hardware. Reads that do not consume the last word of a
+ * cache line always use LDI.
+ * reserved_4_6:3 [6:4] Reserved.
+ * grp:3; [3:1](R/W) Engine group.
+ * pri:1; [0:0](R/W) Queue priority.
+ * 1 = This queue has higher priority. Round-robin between higher
+ * priority queues.
+ * 0 = This queue has lower priority. Round-robin between lower
+ * priority queues.
+ */
+union otx_cptx_pf_qx_ctl {
+ u64 u;
+ struct otx_cptx_pf_qx_ctl_s {
+#if defined(__BIG_ENDIAN_BITFIELD) /* Word 0 - Big Endian */
+ u64 reserved_60_63:4;
+ u64 aura:12;
+ u64 reserved_45_47:3;
+ u64 size:13;
+ u64 reserved_11_31:21;
+ u64 cont_err:1;
+ u64 inst_free:1;
+ u64 inst_be:1;
+ u64 iqb_ldwb:1;
+ u64 reserved_4_6:3;
+ u64 grp:3;
+ u64 pri:1;
+#else /* Word 0 - Little Endian */
+ u64 pri:1;
+ u64 grp:3;
+ u64 reserved_4_6:3;
+ u64 iqb_ldwb:1;
+ u64 inst_be:1;
+ u64 inst_free:1;
+ u64 cont_err:1;
+ u64 reserved_11_31:21;
+ u64 size:13;
+ u64 reserved_45_47:3;
+ u64 aura:12;
+ u64 reserved_60_63:4;
+#endif /* Word 0 - End */
+ } s;
+};
+#endif /* __OTX_CPT_HW_TYPES_H */
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf.h b/drivers/crypto/marvell/octeontx/otx_cptpf.h
new file mode 100644
index 0000000..73cd0a9
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OTX_CPTPF_H
+#define __OTX_CPTPF_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include "otx_cptpf_ucode.h"
+
+/*
+ * OcteonTX CPT device structure
+ */
+struct otx_cpt_device {
+ void __iomem *reg_base; /* Register start address */
+ struct pci_dev *pdev; /* Pci device handle */
+ struct otx_cpt_eng_grps eng_grps;/* Engine groups information */
+ struct list_head list;
+ u8 pf_type; /* PF type SE or AE */
+ u8 max_vfs; /* Maximum number of VFs supported by the CPT */
+ u8 vfs_enabled; /* Number of enabled VFs */
+};
+
+void otx_cpt_mbox_intr_handler(struct otx_cpt_device *cpt, int mbx);
+void otx_cpt_disable_all_cores(struct otx_cpt_device *cpt);
+
+#endif /* __OTX_CPTPF_H */
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_main.c b/drivers/crypto/marvell/octeontx/otx_cptpf_main.c
new file mode 100644
index 0000000..200fb33
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_main.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "otx_cpt_common.h"
+#include "otx_cptpf.h"
+
+#define DRV_NAME "octeontx-cpt"
+#define DRV_VERSION "1.0"
+
+static void otx_cpt_disable_mbox_interrupts(struct otx_cpt_device *cpt)
+{
+ /* Disable mbox(0) interrupts for all VFs */
+ writeq(~0ull, cpt->reg_base + OTX_CPT_PF_MBOX_ENA_W1CX(0));
+}
+
+static void otx_cpt_enable_mbox_interrupts(struct otx_cpt_device *cpt)
+{
+ /* Enable mbox(0) interrupts for all VFs */
+ writeq(~0ull, cpt->reg_base + OTX_CPT_PF_MBOX_ENA_W1SX(0));
+}
+
+static irqreturn_t otx_cpt_mbx0_intr_handler(int __always_unused irq,
+ void *cpt)
+{
+ otx_cpt_mbox_intr_handler(cpt, 0);
+
+ return IRQ_HANDLED;
+}
+
+static void otx_cpt_reset(struct otx_cpt_device *cpt)
+{
+ writeq(1, cpt->reg_base + OTX_CPT_PF_RESET);
+}
+
+static void otx_cpt_find_max_enabled_cores(struct otx_cpt_device *cpt)
+{
+ union otx_cptx_pf_constants pf_cnsts = {0};
+
+ pf_cnsts.u = readq(cpt->reg_base + OTX_CPT_PF_CONSTANTS);
+ cpt->eng_grps.avail.max_se_cnt = pf_cnsts.s.se;
+ cpt->eng_grps.avail.max_ae_cnt = pf_cnsts.s.ae;
+}
+
+static u32 otx_cpt_check_bist_status(struct otx_cpt_device *cpt)
+{
+ union otx_cptx_pf_bist_status bist_sts = {0};
+
+ bist_sts.u = readq(cpt->reg_base + OTX_CPT_PF_BIST_STATUS);
+ return bist_sts.u;
+}
+
+static u64 otx_cpt_check_exe_bist_status(struct otx_cpt_device *cpt)
+{
+ union otx_cptx_pf_exe_bist_status bist_sts = {0};
+
+ bist_sts.u = readq(cpt->reg_base + OTX_CPT_PF_EXE_BIST_STATUS);
+ return bist_sts.u;
+}
+
+static int otx_cpt_device_init(struct otx_cpt_device *cpt)
+{
+ struct device *dev = &cpt->pdev->dev;
+ u16 sdevid;
+ u64 bist;
+
+ /* Reset the PF when probed first */
+ otx_cpt_reset(cpt);
+ mdelay(100);
+
+ pci_read_config_word(cpt->pdev, PCI_SUBSYSTEM_ID, &sdevid);
+
+ /* Check BIST status */
+ bist = (u64)otx_cpt_check_bist_status(cpt);
+ if (bist) {
+ dev_err(dev, "RAM BIST failed with code 0x%llx", bist);
+ return -ENODEV;
+ }
+
+ bist = otx_cpt_check_exe_bist_status(cpt);
+ if (bist) {
+ dev_err(dev, "Engine BIST failed with code 0x%llx", bist);
+ return -ENODEV;
+ }
+
+ /* Get max enabled cores */
+ otx_cpt_find_max_enabled_cores(cpt);
+
+ if ((sdevid == OTX_CPT_PCI_PF_SUBSYS_ID) &&
+ (cpt->eng_grps.avail.max_se_cnt == 0)) {
+ cpt->pf_type = OTX_CPT_AE;
+ } else if ((sdevid == OTX_CPT_PCI_PF_SUBSYS_ID) &&
+ (cpt->eng_grps.avail.max_ae_cnt == 0)) {
+ cpt->pf_type = OTX_CPT_SE;
+ }
+
+ /* Get max VQs/VFs supported by the device */
+ cpt->max_vfs = pci_sriov_get_totalvfs(cpt->pdev);
+
+ /* Disable all cores */
+ otx_cpt_disable_all_cores(cpt);
+
+ return 0;
+}
+
+static int otx_cpt_register_interrupts(struct otx_cpt_device *cpt)
+{
+ struct device *dev = &cpt->pdev->dev;
+ u32 mbox_int_idx = OTX_CPT_PF_MBOX_INT;
+ u32 num_vec = OTX_CPT_PF_MSIX_VECTORS;
+ int ret;
+
+ /* Enable MSI-X */
+ ret = pci_alloc_irq_vectors(cpt->pdev, num_vec, num_vec, PCI_IRQ_MSIX);
+ if (ret < 0) {
+ dev_err(&cpt->pdev->dev,
+ "Request for #%d msix vectors failed\n",
+ num_vec);
+ return ret;
+ }
+
+ /* Register mailbox interrupt handlers */
+ ret = request_irq(pci_irq_vector(cpt->pdev,
+ OTX_CPT_PF_INT_VEC_E_MBOXX(mbox_int_idx, 0)),
+ otx_cpt_mbx0_intr_handler, 0, "CPT Mbox0", cpt);
+ if (ret) {
+ dev_err(dev, "Request irq failed\n");
+ pci_free_irq_vectors(cpt->pdev);
+ return ret;
+ }
+ /* Enable mailbox interrupt */
+ otx_cpt_enable_mbox_interrupts(cpt);
+ return 0;
+}
+
+static void otx_cpt_unregister_interrupts(struct otx_cpt_device *cpt)
+{
+ u32 mbox_int_idx = OTX_CPT_PF_MBOX_INT;
+
+ otx_cpt_disable_mbox_interrupts(cpt);
+ free_irq(pci_irq_vector(cpt->pdev,
+ OTX_CPT_PF_INT_VEC_E_MBOXX(mbox_int_idx, 0)),
+ cpt);
+ pci_free_irq_vectors(cpt->pdev);
+}
+
+
+static int otx_cpt_sriov_configure(struct pci_dev *pdev, int numvfs)
+{
+ struct otx_cpt_device *cpt = pci_get_drvdata(pdev);
+ int ret = 0;
+
+ if (numvfs > cpt->max_vfs)
+ numvfs = cpt->max_vfs;
+
+ if (numvfs > 0) {
+ ret = otx_cpt_try_create_default_eng_grps(cpt->pdev,
+ &cpt->eng_grps,
+ cpt->pf_type);
+ if (ret)
+ return ret;
+
+ cpt->vfs_enabled = numvfs;
+ ret = pci_enable_sriov(pdev, numvfs);
+ if (ret) {
+ cpt->vfs_enabled = 0;
+ return ret;
+ }
+ otx_cpt_set_eng_grps_is_rdonly(&cpt->eng_grps, true);
+ try_module_get(THIS_MODULE);
+ ret = numvfs;
+ } else {
+ pci_disable_sriov(pdev);
+ otx_cpt_set_eng_grps_is_rdonly(&cpt->eng_grps, false);
+ module_put(THIS_MODULE);
+ cpt->vfs_enabled = 0;
+ }
+ dev_notice(&cpt->pdev->dev, "VFs enabled: %d\n", ret);
+
+ return ret;
+}
+
+static int otx_cpt_probe(struct pci_dev *pdev,
+ const struct pci_device_id __always_unused *ent)
+{
+ struct device *dev = &pdev->dev;
+ struct otx_cpt_device *cpt;
+ int err;
+
+ cpt = devm_kzalloc(dev, sizeof(*cpt), GFP_KERNEL);
+ if (!cpt)
+ return -ENOMEM;
+
+ pci_set_drvdata(pdev, cpt);
+ cpt->pdev = pdev;
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(dev, "Failed to enable PCI device\n");
+ goto err_clear_drvdata;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ dev_err(dev, "PCI request regions failed 0x%x\n", err);
+ goto err_disable_device;
+ }
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(48));
+ if (err) {
+ dev_err(dev, "Unable to get usable DMA configuration\n");
+ goto err_release_regions;
+ }
+
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(48));
+ if (err) {
+ dev_err(dev, "Unable to get 48-bit DMA for consistent allocations\n");
+ goto err_release_regions;
+ }
+
+ /* MAP PF's configuration registers */
+ cpt->reg_base = pci_iomap(pdev, OTX_CPT_PF_PCI_CFG_BAR, 0);
+ if (!cpt->reg_base) {
+ dev_err(dev, "Cannot map config register space, aborting\n");
+ err = -ENOMEM;
+ goto err_release_regions;
+ }
+
+ /* CPT device HW initialization */
+ err = otx_cpt_device_init(cpt);
+ if (err)
+ goto err_unmap_region;
+
+ /* Register interrupts */
+ err = otx_cpt_register_interrupts(cpt);
+ if (err)
+ goto err_unmap_region;
+
+ /* Initialize engine groups */
+ err = otx_cpt_init_eng_grps(pdev, &cpt->eng_grps, cpt->pf_type);
+ if (err)
+ goto err_unregister_interrupts;
+
+ return 0;
+
+err_unregister_interrupts:
+ otx_cpt_unregister_interrupts(cpt);
+err_unmap_region:
+ pci_iounmap(pdev, cpt->reg_base);
+err_release_regions:
+ pci_release_regions(pdev);
+err_disable_device:
+ pci_disable_device(pdev);
+err_clear_drvdata:
+ pci_set_drvdata(pdev, NULL);
+
+ return err;
+}
+
+static void otx_cpt_remove(struct pci_dev *pdev)
+{
+ struct otx_cpt_device *cpt = pci_get_drvdata(pdev);
+
+ if (!cpt)
+ return;
+
+ /* Disable VFs */
+ pci_disable_sriov(pdev);
+ /* Cleanup engine groups */
+ otx_cpt_cleanup_eng_grps(pdev, &cpt->eng_grps);
+ /* Disable CPT PF interrupts */
+ otx_cpt_unregister_interrupts(cpt);
+ /* Disengage SE and AE cores from all groups */
+ otx_cpt_disable_all_cores(cpt);
+ pci_iounmap(pdev, cpt->reg_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+}
+
+/* Supported devices */
+static const struct pci_device_id otx_cpt_id_table[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, OTX_CPT_PCI_PF_DEVICE_ID) },
+ { 0, } /* end of table */
+};
+
+static struct pci_driver otx_cpt_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = otx_cpt_id_table,
+ .probe = otx_cpt_probe,
+ .remove = otx_cpt_remove,
+ .sriov_configure = otx_cpt_sriov_configure
+};
+
+module_pci_driver(otx_cpt_pci_driver);
+
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_DESCRIPTION("Marvell OcteonTX CPT Physical Function Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, otx_cpt_id_table);
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c b/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c
new file mode 100644
index 0000000..a677423
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "otx_cpt_common.h"
+#include "otx_cptpf.h"
+
+static char *get_mbox_opcode_str(int msg_opcode)
+{
+ char *str = "Unknown";
+
+ switch (msg_opcode) {
+ case OTX_CPT_MSG_VF_UP:
+ str = "UP";
+ break;
+
+ case OTX_CPT_MSG_VF_DOWN:
+ str = "DOWN";
+ break;
+
+ case OTX_CPT_MSG_READY:
+ str = "READY";
+ break;
+
+ case OTX_CPT_MSG_QLEN:
+ str = "QLEN";
+ break;
+
+ case OTX_CPT_MSG_QBIND_GRP:
+ str = "QBIND_GRP";
+ break;
+
+ case OTX_CPT_MSG_VQ_PRIORITY:
+ str = "VQ_PRIORITY";
+ break;
+
+ case OTX_CPT_MSG_PF_TYPE:
+ str = "PF_TYPE";
+ break;
+
+ case OTX_CPT_MSG_ACK:
+ str = "ACK";
+ break;
+
+ case OTX_CPT_MSG_NACK:
+ str = "NACK";
+ break;
+ }
+
+ return str;
+}
+
+static void dump_mbox_msg(struct otx_cpt_mbox *mbox_msg, int vf_id)
+{
+ char raw_data_str[OTX_CPT_MAX_MBOX_DATA_STR_SIZE];
+
+ hex_dump_to_buffer(mbox_msg, sizeof(struct otx_cpt_mbox), 16, 8,
+ raw_data_str, OTX_CPT_MAX_MBOX_DATA_STR_SIZE, false);
+ if (vf_id >= 0)
+ pr_debug("MBOX opcode %s received from VF%d raw_data %s",
+ get_mbox_opcode_str(mbox_msg->msg), vf_id,
+ raw_data_str);
+ else
+ pr_debug("MBOX opcode %s received from PF raw_data %s",
+ get_mbox_opcode_str(mbox_msg->msg), raw_data_str);
+}
+
+static void otx_cpt_send_msg_to_vf(struct otx_cpt_device *cpt, int vf,
+ struct otx_cpt_mbox *mbx)
+{
+ /* Writing mbox(0) causes interrupt */
+ writeq(mbx->data, cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 1));
+ writeq(mbx->msg, cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 0));
+}
+
+/*
+ * ACKs VF's mailbox message
+ * @vf: VF to which ACK to be sent
+ */
+static void otx_cpt_mbox_send_ack(struct otx_cpt_device *cpt, int vf,
+ struct otx_cpt_mbox *mbx)
+{
+ mbx->data = 0ull;
+ mbx->msg = OTX_CPT_MSG_ACK;
+ otx_cpt_send_msg_to_vf(cpt, vf, mbx);
+}
+
+/* NACKs VF's mailbox message that PF is not able to complete the action */
+static void otx_cptpf_mbox_send_nack(struct otx_cpt_device *cpt, int vf,
+ struct otx_cpt_mbox *mbx)
+{
+ mbx->data = 0ull;
+ mbx->msg = OTX_CPT_MSG_NACK;
+ otx_cpt_send_msg_to_vf(cpt, vf, mbx);
+}
+
+static void otx_cpt_clear_mbox_intr(struct otx_cpt_device *cpt, u32 vf)
+{
+ /* W1C for the VF */
+ writeq(1ull << vf, cpt->reg_base + OTX_CPT_PF_MBOX_INTX(0));
+}
+
+/*
+ * Configure QLEN/Chunk sizes for VF
+ */
+static void otx_cpt_cfg_qlen_for_vf(struct otx_cpt_device *cpt, int vf,
+ u32 size)
+{
+ union otx_cptx_pf_qx_ctl pf_qx_ctl;
+
+ pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(vf));
+ pf_qx_ctl.s.size = size;
+ pf_qx_ctl.s.cont_err = true;
+ writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(vf));
+}
+
+/*
+ * Configure VQ priority
+ */
+static void otx_cpt_cfg_vq_priority(struct otx_cpt_device *cpt, int vf, u32 pri)
+{
+ union otx_cptx_pf_qx_ctl pf_qx_ctl;
+
+ pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(vf));
+ pf_qx_ctl.s.pri = pri;
+ writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(vf));
+}
+
+static int otx_cpt_bind_vq_to_grp(struct otx_cpt_device *cpt, u8 q, u8 grp)
+{
+ struct device *dev = &cpt->pdev->dev;
+ struct otx_cpt_eng_grp_info *eng_grp;
+ union otx_cptx_pf_qx_ctl pf_qx_ctl;
+ struct otx_cpt_ucode *ucode;
+
+ if (q >= cpt->max_vfs) {
+ dev_err(dev, "Requested queue %d is > than maximum avail %d",
+ q, cpt->max_vfs);
+ return -EINVAL;
+ }
+
+ if (grp >= OTX_CPT_MAX_ENGINE_GROUPS) {
+ dev_err(dev, "Requested group %d is > than maximum avail %d",
+ grp, OTX_CPT_MAX_ENGINE_GROUPS);
+ return -EINVAL;
+ }
+
+ eng_grp = &cpt->eng_grps.grp[grp];
+ if (!eng_grp->is_enabled) {
+ dev_err(dev, "Requested engine group %d is disabled", grp);
+ return -EINVAL;
+ }
+
+ pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(q));
+ pf_qx_ctl.s.grp = grp;
+ writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(q));
+
+ if (eng_grp->mirror.is_ena)
+ ucode = &eng_grp->g->grp[eng_grp->mirror.idx].ucode[0];
+ else
+ ucode = &eng_grp->ucode[0];
+
+ if (otx_cpt_uc_supports_eng_type(ucode, OTX_CPT_SE_TYPES))
+ return OTX_CPT_SE_TYPES;
+ else if (otx_cpt_uc_supports_eng_type(ucode, OTX_CPT_AE_TYPES))
+ return OTX_CPT_AE_TYPES;
+ else
+ return BAD_OTX_CPTVF_TYPE;
+}
+
+/* Interrupt handler to handle mailbox messages from VFs */
+static void otx_cpt_handle_mbox_intr(struct otx_cpt_device *cpt, int vf)
+{
+ int vftype = 0;
+ struct otx_cpt_mbox mbx = {};
+ struct device *dev = &cpt->pdev->dev;
+ /*
+ * MBOX[0] contains msg
+ * MBOX[1] contains data
+ */
+ mbx.msg = readq(cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 0));
+ mbx.data = readq(cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 1));
+
+ dump_mbox_msg(&mbx, vf);
+
+ switch (mbx.msg) {
+ case OTX_CPT_MSG_VF_UP:
+ mbx.msg = OTX_CPT_MSG_VF_UP;
+ mbx.data = cpt->vfs_enabled;
+ otx_cpt_send_msg_to_vf(cpt, vf, &mbx);
+ break;
+ case OTX_CPT_MSG_READY:
+ mbx.msg = OTX_CPT_MSG_READY;
+ mbx.data = vf;
+ otx_cpt_send_msg_to_vf(cpt, vf, &mbx);
+ break;
+ case OTX_CPT_MSG_VF_DOWN:
+ /* First msg in VF teardown sequence */
+ otx_cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ case OTX_CPT_MSG_QLEN:
+ otx_cpt_cfg_qlen_for_vf(cpt, vf, mbx.data);
+ otx_cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ case OTX_CPT_MSG_QBIND_GRP:
+ vftype = otx_cpt_bind_vq_to_grp(cpt, vf, (u8)mbx.data);
+ if ((vftype != OTX_CPT_AE_TYPES) &&
+ (vftype != OTX_CPT_SE_TYPES)) {
+ dev_err(dev, "VF%d binding to eng group %llu failed",
+ vf, mbx.data);
+ otx_cptpf_mbox_send_nack(cpt, vf, &mbx);
+ } else {
+ mbx.msg = OTX_CPT_MSG_QBIND_GRP;
+ mbx.data = vftype;
+ otx_cpt_send_msg_to_vf(cpt, vf, &mbx);
+ }
+ break;
+ case OTX_CPT_MSG_PF_TYPE:
+ mbx.msg = OTX_CPT_MSG_PF_TYPE;
+ mbx.data = cpt->pf_type;
+ otx_cpt_send_msg_to_vf(cpt, vf, &mbx);
+ break;
+ case OTX_CPT_MSG_VQ_PRIORITY:
+ otx_cpt_cfg_vq_priority(cpt, vf, mbx.data);
+ otx_cpt_mbox_send_ack(cpt, vf, &mbx);
+ break;
+ default:
+ dev_err(&cpt->pdev->dev, "Invalid msg from VF%d, msg 0x%llx\n",
+ vf, mbx.msg);
+ break;
+ }
+}
+
+void otx_cpt_mbox_intr_handler (struct otx_cpt_device *cpt, int mbx)
+{
+ u64 intr;
+ u8 vf;
+
+ intr = readq(cpt->reg_base + OTX_CPT_PF_MBOX_INTX(0));
+ pr_debug("PF interrupt mbox%d mask 0x%llx\n", mbx, intr);
+ for (vf = 0; vf < cpt->max_vfs; vf++) {
+ if (intr & (1ULL << vf)) {
+ otx_cpt_handle_mbox_intr(cpt, vf);
+ otx_cpt_clear_mbox_intr(cpt, vf);
+ }
+ }
+}
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
new file mode 100644
index 0000000..d04baa3
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
@@ -0,0 +1,1686 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ctype.h>
+#include <linux/firmware.h>
+#include "otx_cpt_common.h"
+#include "otx_cptpf_ucode.h"
+#include "otx_cptpf.h"
+
+#define CSR_DELAY 30
+/* Tar archive defines */
+#define TAR_MAGIC "ustar"
+#define TAR_MAGIC_LEN 6
+#define TAR_BLOCK_LEN 512
+#define REGTYPE '0'
+#define AREGTYPE '\0'
+
+/* tar header as defined in POSIX 1003.1-1990. */
+struct tar_hdr_t {
+ char name[100];
+ char mode[8];
+ char uid[8];
+ char gid[8];
+ char size[12];
+ char mtime[12];
+ char chksum[8];
+ char typeflag;
+ char linkname[100];
+ char magic[6];
+ char version[2];
+ char uname[32];
+ char gname[32];
+ char devmajor[8];
+ char devminor[8];
+ char prefix[155];
+};
+
+struct tar_blk_t {
+ union {
+ struct tar_hdr_t hdr;
+ char block[TAR_BLOCK_LEN];
+ };
+};
+
+struct tar_arch_info_t {
+ struct list_head ucodes;
+ const struct firmware *fw;
+};
+
+static struct otx_cpt_bitmap get_cores_bmap(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp)
+{
+ struct otx_cpt_bitmap bmap = { {0} };
+ bool found = false;
+ int i;
+
+ if (eng_grp->g->engs_num > OTX_CPT_MAX_ENGINES) {
+ dev_err(dev, "unsupported number of engines %d on octeontx",
+ eng_grp->g->engs_num);
+ return bmap;
+ }
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ if (eng_grp->engs[i].type) {
+ bitmap_or(bmap.bits, bmap.bits,
+ eng_grp->engs[i].bmap,
+ eng_grp->g->engs_num);
+ bmap.size = eng_grp->g->engs_num;
+ found = true;
+ }
+ }
+
+ if (!found)
+ dev_err(dev, "No engines reserved for engine group %d",
+ eng_grp->idx);
+ return bmap;
+}
+
+static int is_eng_type(int val, int eng_type)
+{
+ return val & (1 << eng_type);
+}
+
+static int dev_supports_eng_type(struct otx_cpt_eng_grps *eng_grps,
+ int eng_type)
+{
+ return is_eng_type(eng_grps->eng_types_supported, eng_type);
+}
+
+static void set_ucode_filename(struct otx_cpt_ucode *ucode,
+ const char *filename)
+{
+ strlcpy(ucode->filename, filename, OTX_CPT_UCODE_NAME_LENGTH);
+}
+
+static char *get_eng_type_str(int eng_type)
+{
+ char *str = "unknown";
+
+ switch (eng_type) {
+ case OTX_CPT_SE_TYPES:
+ str = "SE";
+ break;
+
+ case OTX_CPT_AE_TYPES:
+ str = "AE";
+ break;
+ }
+ return str;
+}
+
+static char *get_ucode_type_str(int ucode_type)
+{
+ char *str = "unknown";
+
+ switch (ucode_type) {
+ case (1 << OTX_CPT_SE_TYPES):
+ str = "SE";
+ break;
+
+ case (1 << OTX_CPT_AE_TYPES):
+ str = "AE";
+ break;
+ }
+ return str;
+}
+
+static int get_ucode_type(struct otx_cpt_ucode_hdr *ucode_hdr, int *ucode_type)
+{
+ char tmp_ver_str[OTX_CPT_UCODE_VER_STR_SZ];
+ u32 i, val = 0;
+ u8 nn;
+
+ strlcpy(tmp_ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ);
+ for (i = 0; i < strlen(tmp_ver_str); i++)
+ tmp_ver_str[i] = tolower(tmp_ver_str[i]);
+
+ nn = ucode_hdr->ver_num.nn;
+ if (strnstr(tmp_ver_str, "se-", OTX_CPT_UCODE_VER_STR_SZ) &&
+ (nn == OTX_CPT_SE_UC_TYPE1 || nn == OTX_CPT_SE_UC_TYPE2 ||
+ nn == OTX_CPT_SE_UC_TYPE3))
+ val |= 1 << OTX_CPT_SE_TYPES;
+ if (strnstr(tmp_ver_str, "ae", OTX_CPT_UCODE_VER_STR_SZ) &&
+ nn == OTX_CPT_AE_UC_TYPE)
+ val |= 1 << OTX_CPT_AE_TYPES;
+
+ *ucode_type = val;
+
+ if (!val)
+ return -EINVAL;
+ if (is_eng_type(val, OTX_CPT_AE_TYPES) &&
+ is_eng_type(val, OTX_CPT_SE_TYPES))
+ return -EINVAL;
+ return 0;
+}
+
+static int is_mem_zero(const char *ptr, int size)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (ptr[i])
+ return 0;
+ }
+ return 1;
+}
+
+static int cpt_set_ucode_base(struct otx_cpt_eng_grp_info *eng_grp, void *obj)
+{
+ struct otx_cpt_device *cpt = (struct otx_cpt_device *) obj;
+ dma_addr_t dma_addr;
+ struct otx_cpt_bitmap bmap;
+ int i;
+
+ bmap = get_cores_bmap(&cpt->pdev->dev, eng_grp);
+ if (!bmap.size)
+ return -EINVAL;
+
+ if (eng_grp->mirror.is_ena)
+ dma_addr =
+ eng_grp->g->grp[eng_grp->mirror.idx].ucode[0].align_dma;
+ else
+ dma_addr = eng_grp->ucode[0].align_dma;
+
+ /*
+ * Set UCODE_BASE only for the cores which are not used,
+ * other cores should have already valid UCODE_BASE set
+ */
+ for_each_set_bit(i, bmap.bits, bmap.size)
+ if (!eng_grp->g->eng_ref_cnt[i])
+ writeq((u64) dma_addr, cpt->reg_base +
+ OTX_CPT_PF_ENGX_UCODE_BASE(i));
+ return 0;
+}
+
+static int cpt_detach_and_disable_cores(struct otx_cpt_eng_grp_info *eng_grp,
+ void *obj)
+{
+ struct otx_cpt_device *cpt = (struct otx_cpt_device *) obj;
+ struct otx_cpt_bitmap bmap = { {0} };
+ int timeout = 10;
+ int i, busy;
+ u64 reg;
+
+ bmap = get_cores_bmap(&cpt->pdev->dev, eng_grp);
+ if (!bmap.size)
+ return -EINVAL;
+
+ /* Detach the cores from group */
+ reg = readq(cpt->reg_base + OTX_CPT_PF_GX_EN(eng_grp->idx));
+ for_each_set_bit(i, bmap.bits, bmap.size) {
+ if (reg & (1ull << i)) {
+ eng_grp->g->eng_ref_cnt[i]--;
+ reg &= ~(1ull << i);
+ }
+ }
+ writeq(reg, cpt->reg_base + OTX_CPT_PF_GX_EN(eng_grp->idx));
+
+ /* Wait for cores to become idle */
+ do {
+ busy = 0;
+ usleep_range(10000, 20000);
+ if (timeout-- < 0)
+ return -EBUSY;
+
+ reg = readq(cpt->reg_base + OTX_CPT_PF_EXEC_BUSY);
+ for_each_set_bit(i, bmap.bits, bmap.size)
+ if (reg & (1ull << i)) {
+ busy = 1;
+ break;
+ }
+ } while (busy);
+
+ /* Disable the cores only if they are not used anymore */
+ reg = readq(cpt->reg_base + OTX_CPT_PF_EXE_CTL);
+ for_each_set_bit(i, bmap.bits, bmap.size)
+ if (!eng_grp->g->eng_ref_cnt[i])
+ reg &= ~(1ull << i);
+ writeq(reg, cpt->reg_base + OTX_CPT_PF_EXE_CTL);
+
+ return 0;
+}
+
+static int cpt_attach_and_enable_cores(struct otx_cpt_eng_grp_info *eng_grp,
+ void *obj)
+{
+ struct otx_cpt_device *cpt = (struct otx_cpt_device *) obj;
+ struct otx_cpt_bitmap bmap;
+ u64 reg;
+ int i;
+
+ bmap = get_cores_bmap(&cpt->pdev->dev, eng_grp);
+ if (!bmap.size)
+ return -EINVAL;
+
+ /* Attach the cores to the group */
+ reg = readq(cpt->reg_base + OTX_CPT_PF_GX_EN(eng_grp->idx));
+ for_each_set_bit(i, bmap.bits, bmap.size) {
+ if (!(reg & (1ull << i))) {
+ eng_grp->g->eng_ref_cnt[i]++;
+ reg |= 1ull << i;
+ }
+ }
+ writeq(reg, cpt->reg_base + OTX_CPT_PF_GX_EN(eng_grp->idx));
+
+ /* Enable the cores */
+ reg = readq(cpt->reg_base + OTX_CPT_PF_EXE_CTL);
+ for_each_set_bit(i, bmap.bits, bmap.size)
+ reg |= 1ull << i;
+ writeq(reg, cpt->reg_base + OTX_CPT_PF_EXE_CTL);
+
+ return 0;
+}
+
+static int process_tar_file(struct device *dev,
+ struct tar_arch_info_t *tar_arch, char *filename,
+ const u8 *data, u32 size)
+{
+ struct tar_ucode_info_t *tar_info;
+ struct otx_cpt_ucode_hdr *ucode_hdr;
+ int ucode_type, ucode_size;
+
+ /*
+ * If size is less than microcode header size then don't report
+ * an error because it might not be microcode file, just process
+ * next file from archive
+ */
+ if (size < sizeof(struct otx_cpt_ucode_hdr))
+ return 0;
+
+ ucode_hdr = (struct otx_cpt_ucode_hdr *) data;
+ /*
+ * If microcode version can't be found don't report an error
+ * because it might not be microcode file, just process next file
+ */
+ if (get_ucode_type(ucode_hdr, &ucode_type))
+ return 0;
+
+ ucode_size = ntohl(ucode_hdr->code_length) * 2;
+ if (!ucode_size || (size < round_up(ucode_size, 16) +
+ sizeof(struct otx_cpt_ucode_hdr) + OTX_CPT_UCODE_SIGN_LEN)) {
+ dev_err(dev, "Ucode %s invalid size", filename);
+ return -EINVAL;
+ }
+
+ tar_info = kzalloc(sizeof(struct tar_ucode_info_t), GFP_KERNEL);
+ if (!tar_info)
+ return -ENOMEM;
+
+ tar_info->ucode_ptr = data;
+ set_ucode_filename(&tar_info->ucode, filename);
+ memcpy(tar_info->ucode.ver_str, ucode_hdr->ver_str,
+ OTX_CPT_UCODE_VER_STR_SZ);
+ tar_info->ucode.ver_num = ucode_hdr->ver_num;
+ tar_info->ucode.type = ucode_type;
+ tar_info->ucode.size = ucode_size;
+ list_add_tail(&tar_info->list, &tar_arch->ucodes);
+
+ return 0;
+}
+
+static void release_tar_archive(struct tar_arch_info_t *tar_arch)
+{
+ struct tar_ucode_info_t *curr, *temp;
+
+ if (!tar_arch)
+ return;
+
+ list_for_each_entry_safe(curr, temp, &tar_arch->ucodes, list) {
+ list_del(&curr->list);
+ kfree(curr);
+ }
+
+ if (tar_arch->fw)
+ release_firmware(tar_arch->fw);
+ kfree(tar_arch);
+}
+
+static struct tar_ucode_info_t *get_uc_from_tar_archive(
+ struct tar_arch_info_t *tar_arch,
+ int ucode_type)
+{
+ struct tar_ucode_info_t *curr, *uc_found = NULL;
+
+ list_for_each_entry(curr, &tar_arch->ucodes, list) {
+ if (!is_eng_type(curr->ucode.type, ucode_type))
+ continue;
+
+ if (!uc_found) {
+ uc_found = curr;
+ continue;
+ }
+
+ switch (ucode_type) {
+ case OTX_CPT_AE_TYPES:
+ break;
+
+ case OTX_CPT_SE_TYPES:
+ if (uc_found->ucode.ver_num.nn == OTX_CPT_SE_UC_TYPE2 ||
+ (uc_found->ucode.ver_num.nn == OTX_CPT_SE_UC_TYPE3
+ && curr->ucode.ver_num.nn == OTX_CPT_SE_UC_TYPE1))
+ uc_found = curr;
+ break;
+ }
+ }
+
+ return uc_found;
+}
+
+static void print_tar_dbg_info(struct tar_arch_info_t *tar_arch,
+ char *tar_filename)
+{
+ struct tar_ucode_info_t *curr;
+
+ pr_debug("Tar archive filename %s", tar_filename);
+ pr_debug("Tar archive pointer %p, size %ld", tar_arch->fw->data,
+ tar_arch->fw->size);
+ list_for_each_entry(curr, &tar_arch->ucodes, list) {
+ pr_debug("Ucode filename %s", curr->ucode.filename);
+ pr_debug("Ucode version string %s", curr->ucode.ver_str);
+ pr_debug("Ucode version %d.%d.%d.%d",
+ curr->ucode.ver_num.nn, curr->ucode.ver_num.xx,
+ curr->ucode.ver_num.yy, curr->ucode.ver_num.zz);
+ pr_debug("Ucode type (%d) %s", curr->ucode.type,
+ get_ucode_type_str(curr->ucode.type));
+ pr_debug("Ucode size %d", curr->ucode.size);
+ pr_debug("Ucode ptr %p\n", curr->ucode_ptr);
+ }
+}
+
+static struct tar_arch_info_t *load_tar_archive(struct device *dev,
+ char *tar_filename)
+{
+ struct tar_arch_info_t *tar_arch = NULL;
+ struct tar_blk_t *tar_blk;
+ unsigned int cur_size;
+ size_t tar_offs = 0;
+ size_t tar_size;
+ int ret;
+
+ tar_arch = kzalloc(sizeof(struct tar_arch_info_t), GFP_KERNEL);
+ if (!tar_arch)
+ return NULL;
+
+ INIT_LIST_HEAD(&tar_arch->ucodes);
+
+ /* Load tar archive */
+ ret = request_firmware(&tar_arch->fw, tar_filename, dev);
+ if (ret)
+ goto release_tar_arch;
+
+ if (tar_arch->fw->size < TAR_BLOCK_LEN) {
+ dev_err(dev, "Invalid tar archive %s ", tar_filename);
+ goto release_tar_arch;
+ }
+
+ tar_size = tar_arch->fw->size;
+ tar_blk = (struct tar_blk_t *) tar_arch->fw->data;
+ if (strncmp(tar_blk->hdr.magic, TAR_MAGIC, TAR_MAGIC_LEN - 1)) {
+ dev_err(dev, "Unsupported format of tar archive %s",
+ tar_filename);
+ goto release_tar_arch;
+ }
+
+ while (1) {
+ /* Read current file size */
+ ret = kstrtouint(tar_blk->hdr.size, 8, &cur_size);
+ if (ret)
+ goto release_tar_arch;
+
+ if (tar_offs + cur_size > tar_size ||
+ tar_offs + 2*TAR_BLOCK_LEN > tar_size) {
+ dev_err(dev, "Invalid tar archive %s ", tar_filename);
+ goto release_tar_arch;
+ }
+
+ tar_offs += TAR_BLOCK_LEN;
+ if (tar_blk->hdr.typeflag == REGTYPE ||
+ tar_blk->hdr.typeflag == AREGTYPE) {
+ ret = process_tar_file(dev, tar_arch,
+ tar_blk->hdr.name,
+ &tar_arch->fw->data[tar_offs],
+ cur_size);
+ if (ret)
+ goto release_tar_arch;
+ }
+
+ tar_offs += (cur_size/TAR_BLOCK_LEN) * TAR_BLOCK_LEN;
+ if (cur_size % TAR_BLOCK_LEN)
+ tar_offs += TAR_BLOCK_LEN;
+
+ /* Check for the end of the archive */
+ if (tar_offs + 2*TAR_BLOCK_LEN > tar_size) {
+ dev_err(dev, "Invalid tar archive %s ", tar_filename);
+ goto release_tar_arch;
+ }
+
+ if (is_mem_zero(&tar_arch->fw->data[tar_offs],
+ 2*TAR_BLOCK_LEN))
+ break;
+
+ /* Read next block from tar archive */
+ tar_blk = (struct tar_blk_t *) &tar_arch->fw->data[tar_offs];
+ }
+
+ print_tar_dbg_info(tar_arch, tar_filename);
+ return tar_arch;
+release_tar_arch:
+ release_tar_archive(tar_arch);
+ return NULL;
+}
+
+static struct otx_cpt_engs_rsvd *find_engines_by_type(
+ struct otx_cpt_eng_grp_info *eng_grp,
+ int eng_type)
+{
+ int i;
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ if (!eng_grp->engs[i].type)
+ continue;
+
+ if (eng_grp->engs[i].type == eng_type)
+ return &eng_grp->engs[i];
+ }
+ return NULL;
+}
+
+int otx_cpt_uc_supports_eng_type(struct otx_cpt_ucode *ucode, int eng_type)
+{
+ return is_eng_type(ucode->type, eng_type);
+}
+EXPORT_SYMBOL_GPL(otx_cpt_uc_supports_eng_type);
+
+int otx_cpt_eng_grp_has_eng_type(struct otx_cpt_eng_grp_info *eng_grp,
+ int eng_type)
+{
+ struct otx_cpt_engs_rsvd *engs;
+
+ engs = find_engines_by_type(eng_grp, eng_type);
+
+ return (engs != NULL ? 1 : 0);
+}
+EXPORT_SYMBOL_GPL(otx_cpt_eng_grp_has_eng_type);
+
+static void print_ucode_info(struct otx_cpt_eng_grp_info *eng_grp,
+ char *buf, int size)
+{
+ if (eng_grp->mirror.is_ena) {
+ scnprintf(buf, size, "%s (shared with engine_group%d)",
+ eng_grp->g->grp[eng_grp->mirror.idx].ucode[0].ver_str,
+ eng_grp->mirror.idx);
+ } else {
+ scnprintf(buf, size, "%s", eng_grp->ucode[0].ver_str);
+ }
+}
+
+static void print_engs_info(struct otx_cpt_eng_grp_info *eng_grp,
+ char *buf, int size, int idx)
+{
+ struct otx_cpt_engs_rsvd *mirrored_engs = NULL;
+ struct otx_cpt_engs_rsvd *engs;
+ int len, i;
+
+ buf[0] = '\0';
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ engs = &eng_grp->engs[i];
+ if (!engs->type)
+ continue;
+ if (idx != -1 && idx != i)
+ continue;
+
+ if (eng_grp->mirror.is_ena)
+ mirrored_engs = find_engines_by_type(
+ &eng_grp->g->grp[eng_grp->mirror.idx],
+ engs->type);
+ if (i > 0 && idx == -1) {
+ len = strlen(buf);
+ scnprintf(buf+len, size-len, ", ");
+ }
+
+ len = strlen(buf);
+ scnprintf(buf+len, size-len, "%d %s ", mirrored_engs ?
+ engs->count + mirrored_engs->count : engs->count,
+ get_eng_type_str(engs->type));
+ if (mirrored_engs) {
+ len = strlen(buf);
+ scnprintf(buf+len, size-len,
+ "(%d shared with engine_group%d) ",
+ engs->count <= 0 ? engs->count +
+ mirrored_engs->count : mirrored_engs->count,
+ eng_grp->mirror.idx);
+ }
+ }
+}
+
+static void print_ucode_dbg_info(struct otx_cpt_ucode *ucode)
+{
+ pr_debug("Ucode info");
+ pr_debug("Ucode version string %s", ucode->ver_str);
+ pr_debug("Ucode version %d.%d.%d.%d", ucode->ver_num.nn,
+ ucode->ver_num.xx, ucode->ver_num.yy, ucode->ver_num.zz);
+ pr_debug("Ucode type %s", get_ucode_type_str(ucode->type));
+ pr_debug("Ucode size %d", ucode->size);
+ pr_debug("Ucode virt address %16.16llx", (u64)ucode->align_va);
+ pr_debug("Ucode phys address %16.16llx\n", ucode->align_dma);
+}
+
+static void cpt_print_engines_mask(struct otx_cpt_eng_grp_info *eng_grp,
+ struct device *dev, char *buf, int size)
+{
+ struct otx_cpt_bitmap bmap;
+ u32 mask[2];
+
+ bmap = get_cores_bmap(dev, eng_grp);
+ if (!bmap.size) {
+ scnprintf(buf, size, "unknown");
+ return;
+ }
+ bitmap_to_arr32(mask, bmap.bits, bmap.size);
+ scnprintf(buf, size, "%8.8x %8.8x", mask[1], mask[0]);
+}
+
+
+static void print_dbg_info(struct device *dev,
+ struct otx_cpt_eng_grps *eng_grps)
+{
+ char engs_info[2*OTX_CPT_UCODE_NAME_LENGTH];
+ struct otx_cpt_eng_grp_info *mirrored_grp;
+ char engs_mask[OTX_CPT_UCODE_NAME_LENGTH];
+ struct otx_cpt_eng_grp_info *grp;
+ struct otx_cpt_engs_rsvd *engs;
+ u32 mask[4];
+ int i, j;
+
+ pr_debug("Engine groups global info");
+ pr_debug("max SE %d, max AE %d",
+ eng_grps->avail.max_se_cnt, eng_grps->avail.max_ae_cnt);
+ pr_debug("free SE %d", eng_grps->avail.se_cnt);
+ pr_debug("free AE %d", eng_grps->avail.ae_cnt);
+
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ grp = &eng_grps->grp[i];
+ pr_debug("engine_group%d, state %s", i, grp->is_enabled ?
+ "enabled" : "disabled");
+ if (grp->is_enabled) {
+ mirrored_grp = &eng_grps->grp[grp->mirror.idx];
+ pr_debug("Ucode0 filename %s, version %s",
+ grp->mirror.is_ena ?
+ mirrored_grp->ucode[0].filename :
+ grp->ucode[0].filename,
+ grp->mirror.is_ena ?
+ mirrored_grp->ucode[0].ver_str :
+ grp->ucode[0].ver_str);
+ }
+
+ for (j = 0; j < OTX_CPT_MAX_ETYPES_PER_GRP; j++) {
+ engs = &grp->engs[j];
+ if (engs->type) {
+ print_engs_info(grp, engs_info,
+ 2*OTX_CPT_UCODE_NAME_LENGTH, j);
+ pr_debug("Slot%d: %s", j, engs_info);
+ bitmap_to_arr32(mask, engs->bmap,
+ eng_grps->engs_num);
+ pr_debug("Mask: %8.8x %8.8x %8.8x %8.8x",
+ mask[3], mask[2], mask[1], mask[0]);
+ } else
+ pr_debug("Slot%d not used", j);
+ }
+ if (grp->is_enabled) {
+ cpt_print_engines_mask(grp, dev, engs_mask,
+ OTX_CPT_UCODE_NAME_LENGTH);
+ pr_debug("Cmask: %s", engs_mask);
+ }
+ }
+}
+
+static int update_engines_avail_count(struct device *dev,
+ struct otx_cpt_engs_available *avail,
+ struct otx_cpt_engs_rsvd *engs, int val)
+{
+ switch (engs->type) {
+ case OTX_CPT_SE_TYPES:
+ avail->se_cnt += val;
+ break;
+
+ case OTX_CPT_AE_TYPES:
+ avail->ae_cnt += val;
+ break;
+
+ default:
+ dev_err(dev, "Invalid engine type %d\n", engs->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int update_engines_offset(struct device *dev,
+ struct otx_cpt_engs_available *avail,
+ struct otx_cpt_engs_rsvd *engs)
+{
+ switch (engs->type) {
+ case OTX_CPT_SE_TYPES:
+ engs->offset = 0;
+ break;
+
+ case OTX_CPT_AE_TYPES:
+ engs->offset = avail->max_se_cnt;
+ break;
+
+ default:
+ dev_err(dev, "Invalid engine type %d\n", engs->type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int release_engines(struct device *dev, struct otx_cpt_eng_grp_info *grp)
+{
+ int i, ret = 0;
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ if (!grp->engs[i].type)
+ continue;
+
+ if (grp->engs[i].count > 0) {
+ ret = update_engines_avail_count(dev, &grp->g->avail,
+ &grp->engs[i],
+ grp->engs[i].count);
+ if (ret)
+ return ret;
+ }
+
+ grp->engs[i].type = 0;
+ grp->engs[i].count = 0;
+ grp->engs[i].offset = 0;
+ grp->engs[i].ucode = NULL;
+ bitmap_zero(grp->engs[i].bmap, grp->g->engs_num);
+ }
+
+ return 0;
+}
+
+static int do_reserve_engines(struct device *dev,
+ struct otx_cpt_eng_grp_info *grp,
+ struct otx_cpt_engines *req_engs)
+{
+ struct otx_cpt_engs_rsvd *engs = NULL;
+ int i, ret;
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ if (!grp->engs[i].type) {
+ engs = &grp->engs[i];
+ break;
+ }
+ }
+
+ if (!engs)
+ return -ENOMEM;
+
+ engs->type = req_engs->type;
+ engs->count = req_engs->count;
+
+ ret = update_engines_offset(dev, &grp->g->avail, engs);
+ if (ret)
+ return ret;
+
+ if (engs->count > 0) {
+ ret = update_engines_avail_count(dev, &grp->g->avail, engs,
+ -engs->count);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int check_engines_availability(struct device *dev,
+ struct otx_cpt_eng_grp_info *grp,
+ struct otx_cpt_engines *req_eng)
+{
+ int avail_cnt = 0;
+
+ switch (req_eng->type) {
+ case OTX_CPT_SE_TYPES:
+ avail_cnt = grp->g->avail.se_cnt;
+ break;
+
+ case OTX_CPT_AE_TYPES:
+ avail_cnt = grp->g->avail.ae_cnt;
+ break;
+
+ default:
+ dev_err(dev, "Invalid engine type %d\n", req_eng->type);
+ return -EINVAL;
+ }
+
+ if (avail_cnt < req_eng->count) {
+ dev_err(dev,
+ "Error available %s engines %d < than requested %d",
+ get_eng_type_str(req_eng->type),
+ avail_cnt, req_eng->count);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static int reserve_engines(struct device *dev, struct otx_cpt_eng_grp_info *grp,
+ struct otx_cpt_engines *req_engs, int req_cnt)
+{
+ int i, ret;
+
+ /* Validate if a number of requested engines is available */
+ for (i = 0; i < req_cnt; i++) {
+ ret = check_engines_availability(dev, grp, &req_engs[i]);
+ if (ret)
+ return ret;
+ }
+
+ /* Reserve requested engines for this engine group */
+ for (i = 0; i < req_cnt; i++) {
+ ret = do_reserve_engines(dev, grp, &req_engs[i]);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static ssize_t eng_grp_info_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ char ucode_info[2*OTX_CPT_UCODE_NAME_LENGTH];
+ char engs_info[2*OTX_CPT_UCODE_NAME_LENGTH];
+ char engs_mask[OTX_CPT_UCODE_NAME_LENGTH];
+ struct otx_cpt_eng_grp_info *eng_grp;
+ int ret;
+
+ eng_grp = container_of(attr, struct otx_cpt_eng_grp_info, info_attr);
+ mutex_lock(&eng_grp->g->lock);
+
+ print_engs_info(eng_grp, engs_info, 2*OTX_CPT_UCODE_NAME_LENGTH, -1);
+ print_ucode_info(eng_grp, ucode_info, 2*OTX_CPT_UCODE_NAME_LENGTH);
+ cpt_print_engines_mask(eng_grp, dev, engs_mask,
+ OTX_CPT_UCODE_NAME_LENGTH);
+ ret = scnprintf(buf, PAGE_SIZE,
+ "Microcode : %s\nEngines: %s\nEngines mask: %s\n",
+ ucode_info, engs_info, engs_mask);
+
+ mutex_unlock(&eng_grp->g->lock);
+ return ret;
+}
+
+static int create_sysfs_eng_grps_info(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp)
+{
+ int ret;
+
+ eng_grp->info_attr.show = eng_grp_info_show;
+ eng_grp->info_attr.store = NULL;
+ eng_grp->info_attr.attr.name = eng_grp->sysfs_info_name;
+ eng_grp->info_attr.attr.mode = 0440;
+ sysfs_attr_init(&eng_grp->info_attr.attr);
+ ret = device_create_file(dev, &eng_grp->info_attr);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void ucode_unload(struct device *dev, struct otx_cpt_ucode *ucode)
+{
+ if (ucode->va) {
+ dma_free_coherent(dev, ucode->size + OTX_CPT_UCODE_ALIGNMENT,
+ ucode->va, ucode->dma);
+ ucode->va = NULL;
+ ucode->align_va = NULL;
+ ucode->dma = 0;
+ ucode->align_dma = 0;
+ ucode->size = 0;
+ }
+
+ memset(&ucode->ver_str, 0, OTX_CPT_UCODE_VER_STR_SZ);
+ memset(&ucode->ver_num, 0, sizeof(struct otx_cpt_ucode_ver_num));
+ set_ucode_filename(ucode, "");
+ ucode->type = 0;
+}
+
+static int copy_ucode_to_dma_mem(struct device *dev,
+ struct otx_cpt_ucode *ucode,
+ const u8 *ucode_data)
+{
+ u32 i;
+
+ /* Allocate DMAable space */
+ ucode->va = dma_alloc_coherent(dev, ucode->size +
+ OTX_CPT_UCODE_ALIGNMENT,
+ &ucode->dma, GFP_KERNEL);
+ if (!ucode->va) {
+ dev_err(dev, "Unable to allocate space for microcode");
+ return -ENOMEM;
+ }
+ ucode->align_va = PTR_ALIGN(ucode->va, OTX_CPT_UCODE_ALIGNMENT);
+ ucode->align_dma = PTR_ALIGN(ucode->dma, OTX_CPT_UCODE_ALIGNMENT);
+
+ memcpy((void *) ucode->align_va, (void *) ucode_data +
+ sizeof(struct otx_cpt_ucode_hdr), ucode->size);
+
+ /* Byte swap 64-bit */
+ for (i = 0; i < (ucode->size / 8); i++)
+ ((u64 *)ucode->align_va)[i] =
+ cpu_to_be64(((u64 *)ucode->align_va)[i]);
+ /* Ucode needs 16-bit swap */
+ for (i = 0; i < (ucode->size / 2); i++)
+ ((u16 *)ucode->align_va)[i] =
+ cpu_to_be16(((u16 *)ucode->align_va)[i]);
+ return 0;
+}
+
+static int ucode_load(struct device *dev, struct otx_cpt_ucode *ucode,
+ const char *ucode_filename)
+{
+ struct otx_cpt_ucode_hdr *ucode_hdr;
+ const struct firmware *fw;
+ int ret;
+
+ set_ucode_filename(ucode, ucode_filename);
+ ret = request_firmware(&fw, ucode->filename, dev);
+ if (ret)
+ return ret;
+
+ ucode_hdr = (struct otx_cpt_ucode_hdr *) fw->data;
+ memcpy(ucode->ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ);
+ ucode->ver_num = ucode_hdr->ver_num;
+ ucode->size = ntohl(ucode_hdr->code_length) * 2;
+ if (!ucode->size || (fw->size < round_up(ucode->size, 16)
+ + sizeof(struct otx_cpt_ucode_hdr) + OTX_CPT_UCODE_SIGN_LEN)) {
+ dev_err(dev, "Ucode %s invalid size", ucode_filename);
+ ret = -EINVAL;
+ goto release_fw;
+ }
+
+ ret = get_ucode_type(ucode_hdr, &ucode->type);
+ if (ret) {
+ dev_err(dev, "Microcode %s unknown type 0x%x", ucode->filename,
+ ucode->type);
+ goto release_fw;
+ }
+
+ ret = copy_ucode_to_dma_mem(dev, ucode, fw->data);
+ if (ret)
+ goto release_fw;
+
+ print_ucode_dbg_info(ucode);
+release_fw:
+ release_firmware(fw);
+ return ret;
+}
+
+static int enable_eng_grp(struct otx_cpt_eng_grp_info *eng_grp,
+ void *obj)
+{
+ int ret;
+
+ ret = cpt_set_ucode_base(eng_grp, obj);
+ if (ret)
+ return ret;
+
+ ret = cpt_attach_and_enable_cores(eng_grp, obj);
+ return ret;
+}
+
+static int disable_eng_grp(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp,
+ void *obj)
+{
+ int i, ret;
+
+ ret = cpt_detach_and_disable_cores(eng_grp, obj);
+ if (ret)
+ return ret;
+
+ /* Unload ucode used by this engine group */
+ ucode_unload(dev, &eng_grp->ucode[0]);
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ if (!eng_grp->engs[i].type)
+ continue;
+
+ eng_grp->engs[i].ucode = &eng_grp->ucode[0];
+ }
+
+ ret = cpt_set_ucode_base(eng_grp, obj);
+
+ return ret;
+}
+
+static void setup_eng_grp_mirroring(struct otx_cpt_eng_grp_info *dst_grp,
+ struct otx_cpt_eng_grp_info *src_grp)
+{
+ /* Setup fields for engine group which is mirrored */
+ src_grp->mirror.is_ena = false;
+ src_grp->mirror.idx = 0;
+ src_grp->mirror.ref_count++;
+
+ /* Setup fields for mirroring engine group */
+ dst_grp->mirror.is_ena = true;
+ dst_grp->mirror.idx = src_grp->idx;
+ dst_grp->mirror.ref_count = 0;
+}
+
+static void remove_eng_grp_mirroring(struct otx_cpt_eng_grp_info *dst_grp)
+{
+ struct otx_cpt_eng_grp_info *src_grp;
+
+ if (!dst_grp->mirror.is_ena)
+ return;
+
+ src_grp = &dst_grp->g->grp[dst_grp->mirror.idx];
+
+ src_grp->mirror.ref_count--;
+ dst_grp->mirror.is_ena = false;
+ dst_grp->mirror.idx = 0;
+ dst_grp->mirror.ref_count = 0;
+}
+
+static void update_requested_engs(struct otx_cpt_eng_grp_info *mirrored_eng_grp,
+ struct otx_cpt_engines *engs, int engs_cnt)
+{
+ struct otx_cpt_engs_rsvd *mirrored_engs;
+ int i;
+
+ for (i = 0; i < engs_cnt; i++) {
+ mirrored_engs = find_engines_by_type(mirrored_eng_grp,
+ engs[i].type);
+ if (!mirrored_engs)
+ continue;
+
+ /*
+ * If mirrored group has this type of engines attached then
+ * there are 3 scenarios possible:
+ * 1) mirrored_engs.count == engs[i].count then all engines
+ * from mirrored engine group will be shared with this engine
+ * group
+ * 2) mirrored_engs.count > engs[i].count then only a subset of
+ * engines from mirrored engine group will be shared with this
+ * engine group
+ * 3) mirrored_engs.count < engs[i].count then all engines
+ * from mirrored engine group will be shared with this group
+ * and additional engines will be reserved for exclusively use
+ * by this engine group
+ */
+ engs[i].count -= mirrored_engs->count;
+ }
+}
+
+static struct otx_cpt_eng_grp_info *find_mirrored_eng_grp(
+ struct otx_cpt_eng_grp_info *grp)
+{
+ struct otx_cpt_eng_grps *eng_grps = grp->g;
+ int i;
+
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ if (!eng_grps->grp[i].is_enabled)
+ continue;
+ if (eng_grps->grp[i].ucode[0].type)
+ continue;
+ if (grp->idx == i)
+ continue;
+ if (!strncasecmp(eng_grps->grp[i].ucode[0].ver_str,
+ grp->ucode[0].ver_str,
+ OTX_CPT_UCODE_VER_STR_SZ))
+ return &eng_grps->grp[i];
+ }
+
+ return NULL;
+}
+
+static struct otx_cpt_eng_grp_info *find_unused_eng_grp(
+ struct otx_cpt_eng_grps *eng_grps)
+{
+ int i;
+
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ if (!eng_grps->grp[i].is_enabled)
+ return &eng_grps->grp[i];
+ }
+ return NULL;
+}
+
+static int eng_grp_update_masks(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp)
+{
+ struct otx_cpt_engs_rsvd *engs, *mirrored_engs;
+ struct otx_cpt_bitmap tmp_bmap = { {0} };
+ int i, j, cnt, max_cnt;
+ int bit;
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ engs = &eng_grp->engs[i];
+ if (!engs->type)
+ continue;
+ if (engs->count <= 0)
+ continue;
+
+ switch (engs->type) {
+ case OTX_CPT_SE_TYPES:
+ max_cnt = eng_grp->g->avail.max_se_cnt;
+ break;
+
+ case OTX_CPT_AE_TYPES:
+ max_cnt = eng_grp->g->avail.max_ae_cnt;
+ break;
+
+ default:
+ dev_err(dev, "Invalid engine type %d", engs->type);
+ return -EINVAL;
+ }
+
+ cnt = engs->count;
+ WARN_ON(engs->offset + max_cnt > OTX_CPT_MAX_ENGINES);
+ bitmap_zero(tmp_bmap.bits, eng_grp->g->engs_num);
+ for (j = engs->offset; j < engs->offset + max_cnt; j++) {
+ if (!eng_grp->g->eng_ref_cnt[j]) {
+ bitmap_set(tmp_bmap.bits, j, 1);
+ cnt--;
+ if (!cnt)
+ break;
+ }
+ }
+
+ if (cnt)
+ return -ENOSPC;
+
+ bitmap_copy(engs->bmap, tmp_bmap.bits, eng_grp->g->engs_num);
+ }
+
+ if (!eng_grp->mirror.is_ena)
+ return 0;
+
+ for (i = 0; i < OTX_CPT_MAX_ETYPES_PER_GRP; i++) {
+ engs = &eng_grp->engs[i];
+ if (!engs->type)
+ continue;
+
+ mirrored_engs = find_engines_by_type(
+ &eng_grp->g->grp[eng_grp->mirror.idx],
+ engs->type);
+ WARN_ON(!mirrored_engs && engs->count <= 0);
+ if (!mirrored_engs)
+ continue;
+
+ bitmap_copy(tmp_bmap.bits, mirrored_engs->bmap,
+ eng_grp->g->engs_num);
+ if (engs->count < 0) {
+ bit = find_first_bit(mirrored_engs->bmap,
+ eng_grp->g->engs_num);
+ bitmap_clear(tmp_bmap.bits, bit, -engs->count);
+ }
+ bitmap_or(engs->bmap, engs->bmap, tmp_bmap.bits,
+ eng_grp->g->engs_num);
+ }
+ return 0;
+}
+
+static int delete_engine_group(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp)
+{
+ int i, ret;
+
+ if (!eng_grp->is_enabled)
+ return -EINVAL;
+
+ if (eng_grp->mirror.ref_count) {
+ dev_err(dev, "Can't delete engine_group%d as it is used by:",
+ eng_grp->idx);
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ if (eng_grp->g->grp[i].mirror.is_ena &&
+ eng_grp->g->grp[i].mirror.idx == eng_grp->idx)
+ dev_err(dev, "engine_group%d", i);
+ }
+ return -EINVAL;
+ }
+
+ /* Removing engine group mirroring if enabled */
+ remove_eng_grp_mirroring(eng_grp);
+
+ /* Disable engine group */
+ ret = disable_eng_grp(dev, eng_grp, eng_grp->g->obj);
+ if (ret)
+ return ret;
+
+ /* Release all engines held by this engine group */
+ ret = release_engines(dev, eng_grp);
+ if (ret)
+ return ret;
+
+ device_remove_file(dev, &eng_grp->info_attr);
+ eng_grp->is_enabled = false;
+
+ return 0;
+}
+
+static int validate_1_ucode_scenario(struct device *dev,
+ struct otx_cpt_eng_grp_info *eng_grp,
+ struct otx_cpt_engines *engs, int engs_cnt)
+{
+ int i;
+
+ /* Verify that ucode loaded supports requested engine types */
+ for (i = 0; i < engs_cnt; i++) {
+ if (!otx_cpt_uc_supports_eng_type(&eng_grp->ucode[0],
+ engs[i].type)) {
+ dev_err(dev,
+ "Microcode %s does not support %s engines",
+ eng_grp->ucode[0].filename,
+ get_eng_type_str(engs[i].type));
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static void update_ucode_ptrs(struct otx_cpt_eng_grp_info *eng_grp)
+{
+ struct otx_cpt_ucode *ucode;
+
+ if (eng_grp->mirror.is_ena)
+ ucode = &eng_grp->g->grp[eng_grp->mirror.idx].ucode[0];
+ else
+ ucode = &eng_grp->ucode[0];
+ WARN_ON(!eng_grp->engs[0].type);
+ eng_grp->engs[0].ucode = ucode;
+}
+
+static int create_engine_group(struct device *dev,
+ struct otx_cpt_eng_grps *eng_grps,
+ struct otx_cpt_engines *engs, int engs_cnt,
+ void *ucode_data[], int ucodes_cnt,
+ bool use_uc_from_tar_arch)
+{
+ struct otx_cpt_eng_grp_info *mirrored_eng_grp;
+ struct tar_ucode_info_t *tar_info;
+ struct otx_cpt_eng_grp_info *eng_grp;
+ int i, ret = 0;
+
+ if (ucodes_cnt > OTX_CPT_MAX_ETYPES_PER_GRP)
+ return -EINVAL;
+
+ /* Validate if requested engine types are supported by this device */
+ for (i = 0; i < engs_cnt; i++)
+ if (!dev_supports_eng_type(eng_grps, engs[i].type)) {
+ dev_err(dev, "Device does not support %s engines",
+ get_eng_type_str(engs[i].type));
+ return -EPERM;
+ }
+
+ /* Find engine group which is not used */
+ eng_grp = find_unused_eng_grp(eng_grps);
+ if (!eng_grp) {
+ dev_err(dev, "Error all engine groups are being used");
+ return -ENOSPC;
+ }
+
+ /* Load ucode */
+ for (i = 0; i < ucodes_cnt; i++) {
+ if (use_uc_from_tar_arch) {
+ tar_info = (struct tar_ucode_info_t *) ucode_data[i];
+ eng_grp->ucode[i] = tar_info->ucode;
+ ret = copy_ucode_to_dma_mem(dev, &eng_grp->ucode[i],
+ tar_info->ucode_ptr);
+ } else
+ ret = ucode_load(dev, &eng_grp->ucode[i],
+ (char *) ucode_data[i]);
+ if (ret)
+ goto err_ucode_unload;
+ }
+
+ /* Validate scenario where 1 ucode is used */
+ ret = validate_1_ucode_scenario(dev, eng_grp, engs, engs_cnt);
+ if (ret)
+ goto err_ucode_unload;
+
+ /* Check if this group mirrors another existing engine group */
+ mirrored_eng_grp = find_mirrored_eng_grp(eng_grp);
+ if (mirrored_eng_grp) {
+ /* Setup mirroring */
+ setup_eng_grp_mirroring(eng_grp, mirrored_eng_grp);
+
+ /*
+ * Update count of requested engines because some
+ * of them might be shared with mirrored group
+ */
+ update_requested_engs(mirrored_eng_grp, engs, engs_cnt);
+ }
+
+ /* Reserve engines */
+ ret = reserve_engines(dev, eng_grp, engs, engs_cnt);
+ if (ret)
+ goto err_ucode_unload;
+
+ /* Update ucode pointers used by engines */
+ update_ucode_ptrs(eng_grp);
+
+ /* Update engine masks used by this group */
+ ret = eng_grp_update_masks(dev, eng_grp);
+ if (ret)
+ goto err_release_engs;
+
+ /* Create sysfs entry for engine group info */
+ ret = create_sysfs_eng_grps_info(dev, eng_grp);
+ if (ret)
+ goto err_release_engs;
+
+ /* Enable engine group */
+ ret = enable_eng_grp(eng_grp, eng_grps->obj);
+ if (ret)
+ goto err_release_engs;
+
+ /*
+ * If this engine group mirrors another engine group
+ * then we need to unload ucode as we will use ucode
+ * from mirrored engine group
+ */
+ if (eng_grp->mirror.is_ena)
+ ucode_unload(dev, &eng_grp->ucode[0]);
+
+ eng_grp->is_enabled = true;
+ if (eng_grp->mirror.is_ena)
+ dev_info(dev,
+ "Engine_group%d: reuse microcode %s from group %d",
+ eng_grp->idx, mirrored_eng_grp->ucode[0].ver_str,
+ mirrored_eng_grp->idx);
+ else
+ dev_info(dev, "Engine_group%d: microcode loaded %s",
+ eng_grp->idx, eng_grp->ucode[0].ver_str);
+
+ return 0;
+
+err_release_engs:
+ release_engines(dev, eng_grp);
+err_ucode_unload:
+ ucode_unload(dev, &eng_grp->ucode[0]);
+ return ret;
+}
+
+static ssize_t ucode_load_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct otx_cpt_engines engs[OTX_CPT_MAX_ETYPES_PER_GRP] = { {0} };
+ char *ucode_filename[OTX_CPT_MAX_ETYPES_PER_GRP];
+ char tmp_buf[OTX_CPT_UCODE_NAME_LENGTH] = { 0 };
+ char *start, *val, *err_msg, *tmp;
+ struct otx_cpt_eng_grps *eng_grps;
+ int grp_idx = 0, ret = -EINVAL;
+ bool has_se, has_ie, has_ae;
+ int del_grp_idx = -1;
+ int ucode_idx = 0;
+
+ if (strlen(buf) > OTX_CPT_UCODE_NAME_LENGTH)
+ return -EINVAL;
+
+ eng_grps = container_of(attr, struct otx_cpt_eng_grps, ucode_load_attr);
+ err_msg = "Invalid engine group format";
+ strlcpy(tmp_buf, buf, OTX_CPT_UCODE_NAME_LENGTH);
+ start = tmp_buf;
+
+ has_se = has_ie = has_ae = false;
+
+ for (;;) {
+ val = strsep(&start, ";");
+ if (!val)
+ break;
+ val = strim(val);
+ if (!*val)
+ continue;
+
+ if (!strncasecmp(val, "engine_group", 12)) {
+ if (del_grp_idx != -1)
+ goto err_print;
+ tmp = strim(strsep(&val, ":"));
+ if (!val)
+ goto err_print;
+ if (strlen(tmp) != 13)
+ goto err_print;
+ if (kstrtoint((tmp + 12), 10, &del_grp_idx))
+ goto err_print;
+ val = strim(val);
+ if (strncasecmp(val, "null", 4))
+ goto err_print;
+ if (strlen(val) != 4)
+ goto err_print;
+ } else if (!strncasecmp(val, "se", 2) && strchr(val, ':')) {
+ if (has_se || ucode_idx)
+ goto err_print;
+ tmp = strim(strsep(&val, ":"));
+ if (!val)
+ goto err_print;
+ if (strlen(tmp) != 2)
+ goto err_print;
+ if (kstrtoint(strim(val), 10, &engs[grp_idx].count))
+ goto err_print;
+ engs[grp_idx++].type = OTX_CPT_SE_TYPES;
+ has_se = true;
+ } else if (!strncasecmp(val, "ae", 2) && strchr(val, ':')) {
+ if (has_ae || ucode_idx)
+ goto err_print;
+ tmp = strim(strsep(&val, ":"));
+ if (!val)
+ goto err_print;
+ if (strlen(tmp) != 2)
+ goto err_print;
+ if (kstrtoint(strim(val), 10, &engs[grp_idx].count))
+ goto err_print;
+ engs[grp_idx++].type = OTX_CPT_AE_TYPES;
+ has_ae = true;
+ } else {
+ if (ucode_idx > 1)
+ goto err_print;
+ if (!strlen(val))
+ goto err_print;
+ if (strnstr(val, " ", strlen(val)))
+ goto err_print;
+ ucode_filename[ucode_idx++] = val;
+ }
+ }
+
+ /* Validate input parameters */
+ if (del_grp_idx == -1) {
+ if (!(grp_idx && ucode_idx))
+ goto err_print;
+
+ if (ucode_idx > 1 && grp_idx < 2)
+ goto err_print;
+
+ if (grp_idx > OTX_CPT_MAX_ETYPES_PER_GRP) {
+ err_msg = "Error max 2 engine types can be attached";
+ goto err_print;
+ }
+
+ } else {
+ if (del_grp_idx < 0 ||
+ del_grp_idx >= OTX_CPT_MAX_ENGINE_GROUPS) {
+ dev_err(dev, "Invalid engine group index %d",
+ del_grp_idx);
+ ret = -EINVAL;
+ return ret;
+ }
+
+ if (!eng_grps->grp[del_grp_idx].is_enabled) {
+ dev_err(dev, "Error engine_group%d is not configured",
+ del_grp_idx);
+ ret = -EINVAL;
+ return ret;
+ }
+
+ if (grp_idx || ucode_idx)
+ goto err_print;
+ }
+
+ mutex_lock(&eng_grps->lock);
+
+ if (eng_grps->is_rdonly) {
+ dev_err(dev, "Disable VFs before modifying engine groups\n");
+ ret = -EACCES;
+ goto err_unlock;
+ }
+
+ if (del_grp_idx == -1)
+ /* create engine group */
+ ret = create_engine_group(dev, eng_grps, engs, grp_idx,
+ (void **) ucode_filename,
+ ucode_idx, false);
+ else
+ /* delete engine group */
+ ret = delete_engine_group(dev, &eng_grps->grp[del_grp_idx]);
+ if (ret)
+ goto err_unlock;
+
+ print_dbg_info(dev, eng_grps);
+err_unlock:
+ mutex_unlock(&eng_grps->lock);
+ return ret ? ret : count;
+err_print:
+ dev_err(dev, "%s\n", err_msg);
+
+ return ret;
+}
+
+int otx_cpt_try_create_default_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps,
+ int pf_type)
+{
+ struct tar_ucode_info_t *tar_info[OTX_CPT_MAX_ETYPES_PER_GRP] = { 0 };
+ struct otx_cpt_engines engs[OTX_CPT_MAX_ETYPES_PER_GRP] = { {0} };
+ struct tar_arch_info_t *tar_arch = NULL;
+ char *tar_filename;
+ int i, ret = 0;
+
+ mutex_lock(&eng_grps->lock);
+
+ /*
+ * We don't create engine group for kernel crypto if attempt to create
+ * it was already made (when user enabled VFs for the first time)
+ */
+ if (eng_grps->is_first_try)
+ goto unlock_mutex;
+ eng_grps->is_first_try = true;
+
+ /* We create group for kcrypto only if no groups are configured */
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++)
+ if (eng_grps->grp[i].is_enabled)
+ goto unlock_mutex;
+
+ switch (pf_type) {
+ case OTX_CPT_AE:
+ case OTX_CPT_SE:
+ tar_filename = OTX_CPT_UCODE_TAR_FILE_NAME;
+ break;
+
+ default:
+ dev_err(&pdev->dev, "Unknown PF type %d\n", pf_type);
+ ret = -EINVAL;
+ goto unlock_mutex;
+ }
+
+ tar_arch = load_tar_archive(&pdev->dev, tar_filename);
+ if (!tar_arch)
+ goto unlock_mutex;
+
+ /*
+ * If device supports SE engines and there is SE microcode in tar
+ * archive try to create engine group with SE engines for kernel
+ * crypto functionality (symmetric crypto)
+ */
+ tar_info[0] = get_uc_from_tar_archive(tar_arch, OTX_CPT_SE_TYPES);
+ if (tar_info[0] &&
+ dev_supports_eng_type(eng_grps, OTX_CPT_SE_TYPES)) {
+
+ engs[0].type = OTX_CPT_SE_TYPES;
+ engs[0].count = eng_grps->avail.max_se_cnt;
+
+ ret = create_engine_group(&pdev->dev, eng_grps, engs, 1,
+ (void **) tar_info, 1, true);
+ if (ret)
+ goto release_tar_arch;
+ }
+ /*
+ * If device supports AE engines and there is AE microcode in tar
+ * archive try to create engine group with AE engines for asymmetric
+ * crypto functionality.
+ */
+ tar_info[0] = get_uc_from_tar_archive(tar_arch, OTX_CPT_AE_TYPES);
+ if (tar_info[0] &&
+ dev_supports_eng_type(eng_grps, OTX_CPT_AE_TYPES)) {
+
+ engs[0].type = OTX_CPT_AE_TYPES;
+ engs[0].count = eng_grps->avail.max_ae_cnt;
+
+ ret = create_engine_group(&pdev->dev, eng_grps, engs, 1,
+ (void **) tar_info, 1, true);
+ if (ret)
+ goto release_tar_arch;
+ }
+
+ print_dbg_info(&pdev->dev, eng_grps);
+release_tar_arch:
+ release_tar_archive(tar_arch);
+unlock_mutex:
+ mutex_unlock(&eng_grps->lock);
+ return ret;
+}
+
+void otx_cpt_set_eng_grps_is_rdonly(struct otx_cpt_eng_grps *eng_grps,
+ bool is_rdonly)
+{
+ mutex_lock(&eng_grps->lock);
+
+ eng_grps->is_rdonly = is_rdonly;
+
+ mutex_unlock(&eng_grps->lock);
+}
+
+void otx_cpt_disable_all_cores(struct otx_cpt_device *cpt)
+{
+ int grp, timeout = 100;
+ u64 reg;
+
+ /* Disengage the cores from groups */
+ for (grp = 0; grp < OTX_CPT_MAX_ENGINE_GROUPS; grp++) {
+ writeq(0, cpt->reg_base + OTX_CPT_PF_GX_EN(grp));
+ udelay(CSR_DELAY);
+ }
+
+ reg = readq(cpt->reg_base + OTX_CPT_PF_EXEC_BUSY);
+ while (reg) {
+ udelay(CSR_DELAY);
+ reg = readq(cpt->reg_base + OTX_CPT_PF_EXEC_BUSY);
+ if (timeout--) {
+ dev_warn(&cpt->pdev->dev, "Cores still busy");
+ break;
+ }
+ }
+
+ /* Disable the cores */
+ writeq(0, cpt->reg_base + OTX_CPT_PF_EXE_CTL);
+}
+
+void otx_cpt_cleanup_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps)
+{
+ struct otx_cpt_eng_grp_info *grp;
+ int i, j;
+
+ mutex_lock(&eng_grps->lock);
+ if (eng_grps->is_ucode_load_created) {
+ device_remove_file(&pdev->dev,
+ &eng_grps->ucode_load_attr);
+ eng_grps->is_ucode_load_created = false;
+ }
+
+ /* First delete all mirroring engine groups */
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++)
+ if (eng_grps->grp[i].mirror.is_ena)
+ delete_engine_group(&pdev->dev, &eng_grps->grp[i]);
+
+ /* Delete remaining engine groups */
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++)
+ delete_engine_group(&pdev->dev, &eng_grps->grp[i]);
+
+ /* Release memory */
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ grp = &eng_grps->grp[i];
+ for (j = 0; j < OTX_CPT_MAX_ETYPES_PER_GRP; j++) {
+ kfree(grp->engs[j].bmap);
+ grp->engs[j].bmap = NULL;
+ }
+ }
+
+ mutex_unlock(&eng_grps->lock);
+}
+
+int otx_cpt_init_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps, int pf_type)
+{
+ struct otx_cpt_eng_grp_info *grp;
+ int i, j, ret = 0;
+
+ mutex_init(&eng_grps->lock);
+ eng_grps->obj = pci_get_drvdata(pdev);
+ eng_grps->avail.se_cnt = eng_grps->avail.max_se_cnt;
+ eng_grps->avail.ae_cnt = eng_grps->avail.max_ae_cnt;
+
+ eng_grps->engs_num = eng_grps->avail.max_se_cnt +
+ eng_grps->avail.max_ae_cnt;
+ if (eng_grps->engs_num > OTX_CPT_MAX_ENGINES) {
+ dev_err(&pdev->dev,
+ "Number of engines %d > than max supported %d",
+ eng_grps->engs_num, OTX_CPT_MAX_ENGINES);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ for (i = 0; i < OTX_CPT_MAX_ENGINE_GROUPS; i++) {
+ grp = &eng_grps->grp[i];
+ grp->g = eng_grps;
+ grp->idx = i;
+
+ snprintf(grp->sysfs_info_name, OTX_CPT_UCODE_NAME_LENGTH,
+ "engine_group%d", i);
+ for (j = 0; j < OTX_CPT_MAX_ETYPES_PER_GRP; j++) {
+ grp->engs[j].bmap =
+ kcalloc(BITS_TO_LONGS(eng_grps->engs_num),
+ sizeof(long), GFP_KERNEL);
+ if (!grp->engs[j].bmap) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+ }
+
+ switch (pf_type) {
+ case OTX_CPT_SE:
+ /* OcteonTX 83XX SE CPT PF has only SE engines attached */
+ eng_grps->eng_types_supported = 1 << OTX_CPT_SE_TYPES;
+ break;
+
+ case OTX_CPT_AE:
+ /* OcteonTX 83XX AE CPT PF has only AE engines attached */
+ eng_grps->eng_types_supported = 1 << OTX_CPT_AE_TYPES;
+ break;
+
+ default:
+ dev_err(&pdev->dev, "Unknown PF type %d\n", pf_type);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ eng_grps->ucode_load_attr.show = NULL;
+ eng_grps->ucode_load_attr.store = ucode_load_store;
+ eng_grps->ucode_load_attr.attr.name = "ucode_load";
+ eng_grps->ucode_load_attr.attr.mode = 0220;
+ sysfs_attr_init(&eng_grps->ucode_load_attr.attr);
+ ret = device_create_file(&pdev->dev,
+ &eng_grps->ucode_load_attr);
+ if (ret)
+ goto err;
+ eng_grps->is_ucode_load_created = true;
+
+ print_dbg_info(&pdev->dev, eng_grps);
+ return ret;
+err:
+ otx_cpt_cleanup_eng_grps(pdev, eng_grps);
+ return ret;
+}
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.h b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.h
new file mode 100644
index 0000000..14f02b6
--- /dev/null
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.h
@@ -0,0 +1,180 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Marvell OcteonTX CPT driver
+ *
+ * Copyright (C) 2019 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __OTX_CPTPF_UCODE_H
+#define __OTX_CPTPF_UCODE_H
+
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include "otx_cpt_hw_types.h"
+
+/* CPT ucode name maximum length */
+#define OTX_CPT_UCODE_NAME_LENGTH 64
+/*
+ * On OcteonTX 83xx platform, only one type of engines is allowed to be
+ * attached to an engine group.
+ */
+#define OTX_CPT_MAX_ETYPES_PER_GRP 1
+
+/* Default tar archive file names */
+#define OTX_CPT_UCODE_TAR_FILE_NAME "cpt8x-mc.tar"
+
+/* CPT ucode alignment */
+#define OTX_CPT_UCODE_ALIGNMENT 128
+
+/* CPT ucode signature size */
+#define OTX_CPT_UCODE_SIGN_LEN 256
+
+/* Microcode version string length */
+#define OTX_CPT_UCODE_VER_STR_SZ 44
+
+/* Maximum number of supported engines/cores on OcteonTX 83XX platform */
+#define OTX_CPT_MAX_ENGINES 64
+
+#define OTX_CPT_ENGS_BITMASK_LEN (OTX_CPT_MAX_ENGINES/(BITS_PER_BYTE * \
+ sizeof(unsigned long)))
+
+/* Microcode types */
+enum otx_cpt_ucode_type {
+ OTX_CPT_AE_UC_TYPE = 1, /* AE-MAIN */
+ OTX_CPT_SE_UC_TYPE1 = 20, /* SE-MAIN - combination of 21 and 22 */
+ OTX_CPT_SE_UC_TYPE2 = 21, /* Fast Path IPSec + AirCrypto */
+ OTX_CPT_SE_UC_TYPE3 = 22, /*
+ * Hash + HMAC + FlexiCrypto + RNG + Full
+ * Feature IPSec + AirCrypto + Kasumi
+ */
+};
+
+struct otx_cpt_bitmap {
+ unsigned long bits[OTX_CPT_ENGS_BITMASK_LEN];
+ int size;
+};
+
+struct otx_cpt_engines {
+ int type;
+ int count;
+};
+
+/* Microcode version number */
+struct otx_cpt_ucode_ver_num {
+ u8 nn;
+ u8 xx;
+ u8 yy;
+ u8 zz;
+};
+
+struct otx_cpt_ucode_hdr {
+ struct otx_cpt_ucode_ver_num ver_num;
+ u8 ver_str[OTX_CPT_UCODE_VER_STR_SZ];
+ u32 code_length;
+ u32 padding[3];
+};
+
+struct otx_cpt_ucode {
+ u8 ver_str[OTX_CPT_UCODE_VER_STR_SZ];/*
+ * ucode version in readable format
+ */
+ struct otx_cpt_ucode_ver_num ver_num;/* ucode version number */
+ char filename[OTX_CPT_UCODE_NAME_LENGTH]; /* ucode filename */
+ dma_addr_t dma; /* phys address of ucode image */
+ dma_addr_t align_dma; /* aligned phys address of ucode image */
+ void *va; /* virt address of ucode image */
+ void *align_va; /* aligned virt address of ucode image */
+ u32 size; /* ucode image size */
+ int type; /* ucode image type SE or AE */
+};
+
+struct tar_ucode_info_t {
+ struct list_head list;
+ struct otx_cpt_ucode ucode;/* microcode information */
+ const u8 *ucode_ptr; /* pointer to microcode in tar archive */
+};
+
+/* Maximum and current number of engines available for all engine groups */
+struct otx_cpt_engs_available {
+ int max_se_cnt;
+ int max_ae_cnt;
+ int se_cnt;
+ int ae_cnt;
+};
+
+/* Engines reserved to an engine group */
+struct otx_cpt_engs_rsvd {
+ int type; /* engine type */
+ int count; /* number of engines attached */
+ int offset; /* constant offset of engine type in the bitmap */
+ unsigned long *bmap; /* attached engines bitmap */
+ struct otx_cpt_ucode *ucode; /* ucode used by these engines */
+};
+
+struct otx_cpt_mirror_info {
+ int is_ena; /*
+ * is mirroring enabled, it is set only for engine
+ * group which mirrors another engine group
+ */
+ int idx; /*
+ * index of engine group which is mirrored by this
+ * group, set only for engine group which mirrors
+ * another group
+ */
+ int ref_count; /*
+ * number of times this engine group is mirrored by
+ * other groups, this is set only for engine group
+ * which is mirrored by other group(s)
+ */
+};
+
+struct otx_cpt_eng_grp_info {
+ struct otx_cpt_eng_grps *g; /* pointer to engine_groups structure */
+ struct device_attribute info_attr; /* group info entry attr */
+ /* engines attached */
+ struct otx_cpt_engs_rsvd engs[OTX_CPT_MAX_ETYPES_PER_GRP];
+ /* Microcode information */
+ struct otx_cpt_ucode ucode[OTX_CPT_MAX_ETYPES_PER_GRP];
+ /* sysfs info entry name */
+ char sysfs_info_name[OTX_CPT_UCODE_NAME_LENGTH];
+ /* engine group mirroring information */
+ struct otx_cpt_mirror_info mirror;
+ int idx; /* engine group index */
+ bool is_enabled; /*
+ * is engine group enabled, engine group is enabled
+ * when it has engines attached and ucode loaded
+ */
+};
+
+struct otx_cpt_eng_grps {
+ struct otx_cpt_eng_grp_info grp[OTX_CPT_MAX_ENGINE_GROUPS];
+ struct device_attribute ucode_load_attr;/* ucode load attr */
+ struct otx_cpt_engs_available avail;
+ struct mutex lock;
+ void *obj;
+ int engs_num; /* total number of engines supported */
+ int eng_types_supported; /* engine types supported SE, AE */
+ u8 eng_ref_cnt[OTX_CPT_MAX_ENGINES];/* engines reference count */
+ bool is_ucode_load_created; /* is ucode_load sysfs entry created */
+ bool is_first_try; /* is this first try to create kcrypto engine grp */
+ bool is_rdonly; /* do engine groups configuration can be modified */
+};
+
+int otx_cpt_init_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps, int pf_type);
+void otx_cpt_cleanup_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps);
+int otx_cpt_try_create_default_eng_grps(struct pci_dev *pdev,
+ struct otx_cpt_eng_grps *eng_grps,
+ int pf_type);
+void otx_cpt_set_eng_grps_is_rdonly(struct otx_cpt_eng_grps *eng_grps,
+ bool is_rdonly);
+int otx_cpt_uc_supports_eng_type(struct otx_cpt_ucode *ucode, int eng_type);
+int otx_cpt_eng_grp_has_eng_type(struct otx_cpt_eng_grp_info *eng_grp,
+ int eng_type);
+
+#endif /* __OTX_CPTPF_UCODE_H */
--
1.9.1
