drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c

// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
/* Copyright(c) 2020 Intel Corporation */
#include <linux/iopoll.h>
#include <adf_accel_devices.h>
#include <adf_common_drv.h>
#include <adf_pf2vf_msg.h>
#include <adf_gen4_hw_data.h>
#include "adf_4xxx_hw_data.h"
#include "icp_qat_hw.h"

struct adf_fw_config {
	u32 ae_mask;
	char *obj_name;
};

static struct adf_fw_config adf_4xxx_fw_config[] = {
	{0xF0, ADF_4XXX_SYM_OBJ},
	{0xF, ADF_4XXX_ASYM_OBJ},
	{0x100, ADF_4XXX_ADMIN_OBJ},
};

/* Worker thread to service arbiter mappings */
static const u32 thrd_to_arb_map[ADF_4XXX_MAX_ACCELENGINES] = {
	0x5555555, 0x5555555, 0x5555555, 0x5555555,
	0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA,
	0x0
};

static struct adf_hw_device_class adf_4xxx_class = {
	.name = ADF_4XXX_DEVICE_NAME,
	.type = DEV_4XXX,
	.instances = 0,
};

static u32 get_accel_mask(struct adf_hw_device_data *self)
{
	return ADF_4XXX_ACCELERATORS_MASK;
}

static u32 get_ae_mask(struct adf_hw_device_data *self)
{
	u32 me_disable = self->fuses;

	return ~me_disable & ADF_4XXX_ACCELENGINES_MASK;
}

static u32 get_num_accels(struct adf_hw_device_data *self)
{
	return ADF_4XXX_MAX_ACCELERATORS;
}

static u32 get_num_aes(struct adf_hw_device_data *self)
{
	if (!self || !self->ae_mask)
		return 0;

	return hweight32(self->ae_mask);
}

static u32 get_misc_bar_id(struct adf_hw_device_data *self)
{
	return ADF_4XXX_PMISC_BAR;
}

static u32 get_etr_bar_id(struct adf_hw_device_data *self)
{
	return ADF_4XXX_ETR_BAR;
}

static u32 get_sram_bar_id(struct adf_hw_device_data *self)
{
	return ADF_4XXX_SRAM_BAR;
}

/*
 * The vector routing table is used to select the MSI-X entry to use for each
 * interrupt source.
 * The first ADF_4XXX_ETR_MAX_BANKS entries correspond to ring interrupts.
 * The final entry corresponds to VF2PF or error interrupts.
 * This vector table could be used to configure one MSI-X entry to be shared
 * between multiple interrupt sources.
 *
 * The default routing is set to have a one to one correspondence between the
 * interrupt source and the MSI-X entry used.
 */
static void set_msix_default_rttable(struct adf_accel_dev *accel_dev)
{
	void __iomem *csr;
	int i;

	csr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;
	for (i = 0; i <= ADF_4XXX_ETR_MAX_BANKS; i++)
		ADF_CSR_WR(csr, ADF_4XXX_MSIX_RTTABLE_OFFSET(i), i);
}

static u32 get_accel_cap(struct adf_accel_dev *accel_dev)
{
	struct pci_dev *pdev = accel_dev->accel_pci_dev.pci_dev;
	u32 fusectl1;
	u32 capabilities = ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC |
			   ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC |
			   ICP_ACCEL_CAPABILITIES_AUTHENTICATION |
			   ICP_ACCEL_CAPABILITIES_AES_V2;

	/* Read accelerator capabilities mask */
	pci_read_config_dword(pdev, ADF_4XXX_FUSECTL1_OFFSET, &fusectl1);

	if (fusectl1 & ICP_ACCEL_4XXX_MASK_CIPHER_SLICE)
		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC;
	if (fusectl1 & ICP_ACCEL_4XXX_MASK_AUTH_SLICE)
		capabilities &= ~ICP_ACCEL_CAPABILITIES_AUTHENTICATION;
	if (fusectl1 & ICP_ACCEL_4XXX_MASK_PKE_SLICE)
		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC;

	return capabilities;
}

static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
{
	return DEV_SKU_1;
}

static const u32 *adf_get_arbiter_mapping(void)
{
	return thrd_to_arb_map;
}

static void get_arb_info(struct arb_info *arb_info)
{
	arb_info->arb_cfg = ADF_4XXX_ARB_CONFIG;
	arb_info->arb_offset = ADF_4XXX_ARB_OFFSET;
	arb_info->wt2sam_offset = ADF_4XXX_ARB_WRK_2_SER_MAP_OFFSET;
}

static void get_admin_info(struct admin_info *admin_csrs_info)
{
	admin_csrs_info->mailbox_offset = ADF_4XXX_MAILBOX_BASE_OFFSET;
	admin_csrs_info->admin_msg_ur = ADF_4XXX_ADMINMSGUR_OFFSET;
	admin_csrs_info->admin_msg_lr = ADF_4XXX_ADMINMSGLR_OFFSET;
}

static void adf_enable_error_correction(struct adf_accel_dev *accel_dev)
{
	struct adf_bar *misc_bar = &GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR];
	void __iomem *csr = misc_bar->virt_addr;

	/* Enable all in errsou3 except VFLR notification on host */
	ADF_CSR_WR(csr, ADF_4XXX_ERRMSK3, ADF_4XXX_VFLNOTIFY);
}

static void adf_enable_ints(struct adf_accel_dev *accel_dev)
{
	void __iomem *addr;

	addr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;

	/* Enable bundle interrupts */
	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_RP_X0_MASK_OFFSET, 0);
	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_RP_X1_MASK_OFFSET, 0);

	/* Enable misc interrupts */
	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_MASK_OFFSET, 0);
}

static int adf_init_device(struct adf_accel_dev *accel_dev)
{
	void __iomem *addr;
	u32 status;
	u32 csr;
	int ret;

	addr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;

	/* Temporarily mask PM interrupt */
	csr = ADF_CSR_RD(addr, ADF_4XXX_ERRMSK2);
	csr |= ADF_4XXX_PM_SOU;
	ADF_CSR_WR(addr, ADF_4XXX_ERRMSK2, csr);

	/* Set DRV_ACTIVE bit to power up the device */
	ADF_CSR_WR(addr, ADF_4XXX_PM_INTERRUPT, ADF_4XXX_PM_DRV_ACTIVE);

	/* Poll status register to make sure the device is powered up */
	ret = read_poll_timeout(ADF_CSR_RD, status,
				status & ADF_4XXX_PM_INIT_STATE,
				ADF_4XXX_PM_POLL_DELAY_US,
				ADF_4XXX_PM_POLL_TIMEOUT_US, true, addr,
				ADF_4XXX_PM_STATUS);
	if (ret)
		dev_err(&GET_DEV(accel_dev), "Failed to power up the device\n");

	return ret;
}

static int pfvf_comms_disabled(struct adf_accel_dev *accel_dev)
{
	return 0;
}

static u32 uof_get_num_objs(void)
{
	return ARRAY_SIZE(adf_4xxx_fw_config);
}

static char *uof_get_name(u32 obj_num)
{
	return adf_4xxx_fw_config[obj_num].obj_name;
}

static u32 uof_get_ae_mask(u32 obj_num)
{
	return adf_4xxx_fw_config[obj_num].ae_mask;
}

void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class = &adf_4xxx_class;
	hw_data->instance_id = adf_4xxx_class.instances++;
	hw_data->num_banks = ADF_4XXX_ETR_MAX_BANKS;
	hw_data->num_rings_per_bank = ADF_4XXX_NUM_RINGS_PER_BANK;
	hw_data->num_accel = ADF_4XXX_MAX_ACCELERATORS;
	hw_data->num_engines = ADF_4XXX_MAX_ACCELENGINES;
	hw_data->num_logical_accel = 1;
	hw_data->tx_rx_gap = ADF_4XXX_RX_RINGS_OFFSET;
	hw_data->tx_rings_mask = ADF_4XXX_TX_RINGS_MASK;
	hw_data->alloc_irq = adf_isr_resource_alloc;
	hw_data->free_irq = adf_isr_resource_free;
	hw_data->enable_error_correction = adf_enable_error_correction;
	hw_data->get_accel_mask = get_accel_mask;
	hw_data->get_ae_mask = get_ae_mask;
	hw_data->get_num_accels = get_num_accels;
	hw_data->get_num_aes = get_num_aes;
	hw_data->get_sram_bar_id = get_sram_bar_id;
	hw_data->get_etr_bar_id = get_etr_bar_id;
	hw_data->get_misc_bar_id = get_misc_bar_id;
	hw_data->get_arb_info = get_arb_info;
	hw_data->get_admin_info = get_admin_info;
	hw_data->get_accel_cap = get_accel_cap;
	hw_data->get_sku = get_sku;
	hw_data->fw_name = ADF_4XXX_FW;
	hw_data->fw_mmp_name = ADF_4XXX_MMP;
	hw_data->init_admin_comms = adf_init_admin_comms;
	hw_data->exit_admin_comms = adf_exit_admin_comms;
	hw_data->send_admin_init = adf_send_admin_init;
	hw_data->init_arb = adf_init_arb;
	hw_data->exit_arb = adf_exit_arb;
	hw_data->get_arb_mapping = adf_get_arbiter_mapping;
	hw_data->enable_ints = adf_enable_ints;
	hw_data->init_device = adf_init_device;
	hw_data->reset_device = adf_reset_flr;
	hw_data->admin_ae_mask = ADF_4XXX_ADMIN_AE_MASK;
	hw_data->uof_get_num_objs = uof_get_num_objs;
	hw_data->uof_get_name = uof_get_name;
	hw_data->uof_get_ae_mask = uof_get_ae_mask;
	hw_data->set_msix_rttable = set_msix_default_rttable;
	hw_data->set_ssm_wdtimer = adf_gen4_set_ssm_wdtimer;
	hw_data->enable_pfvf_comms = pfvf_comms_disabled;
	hw_data->disable_iov = adf_disable_sriov;
	hw_data->min_iov_compat_ver = ADF_PFVF_COMPAT_THIS_VERSION;

	adf_gen4_init_hw_csr_ops(&hw_data->csr_ops);
}

void adf_clean_hw_data_4xxx(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class->instances--;
}