kernel/drivers/crypto/qat/qat_c3xxx/adf_c3xxx_hw_data.c

// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <adf_accel_devices.h>
#include <adf_common_drv.h>
#include <adf_pf2vf_msg.h>
#include <adf_gen2_hw_data.h>
#include "adf_c3xxx_hw_data.h"
#include "icp_qat_hw.h"

/* Worker thread to service arbiter mappings */
static const u32 thrd_to_arb_map[ADF_C3XXX_MAX_ACCELENGINES] = {
	0x12222AAA, 0x11222AAA, 0x12222AAA,
	0x11222AAA, 0x12222AAA, 0x11222AAA
};

static struct adf_hw_device_class c3xxx_class = {
	.name = ADF_C3XXX_DEVICE_NAME,
	.type = DEV_C3XXX,
	.instances = 0
};

static u32 get_accel_mask(struct adf_hw_device_data *self)
{
	u32 straps = self->straps;
	u32 fuses = self->fuses;
	u32 accel;

	accel = ~(fuses | straps) >> ADF_C3XXX_ACCELERATORS_REG_OFFSET;
	accel &= ADF_C3XXX_ACCELERATORS_MASK;

	return accel;
}

static u32 get_ae_mask(struct adf_hw_device_data *self)
{
	u32 straps = self->straps;
	u32 fuses = self->fuses;
	unsigned long disabled;
	u32 ae_disable;
	int accel;

	/* If an accel is disabled, then disable the corresponding two AEs */
	disabled = ~get_accel_mask(self) & ADF_C3XXX_ACCELERATORS_MASK;
	ae_disable = BIT(1) | BIT(0);
	for_each_set_bit(accel, &disabled, ADF_C3XXX_MAX_ACCELERATORS)
		straps |= ae_disable << (accel << 1);

	return ~(fuses | straps) & ADF_C3XXX_ACCELENGINES_MASK;
}

static u32 get_num_accels(struct adf_hw_device_data *self)
{
	u32 i, ctr = 0;

	if (!self || !self->accel_mask)
		return 0;

	for (i = 0; i < ADF_C3XXX_MAX_ACCELERATORS; i++) {
		if (self->accel_mask & (1 << i))
			ctr++;
	}
	return ctr;
}

static u32 get_num_aes(struct adf_hw_device_data *self)
{
	u32 i, ctr = 0;

	if (!self || !self->ae_mask)
		return 0;

	for (i = 0; i < ADF_C3XXX_MAX_ACCELENGINES; i++) {
		if (self->ae_mask & (1 << i))
			ctr++;
	}
	return ctr;
}

static u32 get_misc_bar_id(struct adf_hw_device_data *self)
{
	return ADF_C3XXX_PMISC_BAR;
}

static u32 get_etr_bar_id(struct adf_hw_device_data *self)
{
	return ADF_C3XXX_ETR_BAR;
}

static u32 get_sram_bar_id(struct adf_hw_device_data *self)
{
	return 0;
}

static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
{
	int aes = get_num_aes(self);

	if (aes == 6)
		return DEV_SKU_4;

	return DEV_SKU_UNKNOWN;
}

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

static u32 get_pf2vf_offset(u32 i)
{
	return ADF_C3XXX_PF2VF_OFFSET(i);
}

static void adf_enable_error_correction(struct adf_accel_dev *accel_dev)
{
	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
	struct adf_bar *misc_bar = &GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR];
	unsigned long accel_mask = hw_device->accel_mask;
	unsigned long ae_mask = hw_device->ae_mask;
	void __iomem *csr = misc_bar->virt_addr;
	unsigned int val, i;

	/* Enable Accel Engine error detection & correction */
	for_each_set_bit(i, &ae_mask, GET_MAX_ACCELENGINES(accel_dev)) {
		val = ADF_CSR_RD(csr, ADF_C3XXX_AE_CTX_ENABLES(i));
		val |= ADF_C3XXX_ENABLE_AE_ECC_ERR;
		ADF_CSR_WR(csr, ADF_C3XXX_AE_CTX_ENABLES(i), val);
		val = ADF_CSR_RD(csr, ADF_C3XXX_AE_MISC_CONTROL(i));
		val |= ADF_C3XXX_ENABLE_AE_ECC_PARITY_CORR;
		ADF_CSR_WR(csr, ADF_C3XXX_AE_MISC_CONTROL(i), val);
	}

	/* Enable shared memory error detection & correction */
	for_each_set_bit(i, &accel_mask, ADF_C3XXX_MAX_ACCELERATORS) {
		val = ADF_CSR_RD(csr, ADF_C3XXX_UERRSSMSH(i));
		val |= ADF_C3XXX_ERRSSMSH_EN;
		ADF_CSR_WR(csr, ADF_C3XXX_UERRSSMSH(i), val);
		val = ADF_CSR_RD(csr, ADF_C3XXX_CERRSSMSH(i));
		val |= ADF_C3XXX_ERRSSMSH_EN;
		ADF_CSR_WR(csr, ADF_C3XXX_CERRSSMSH(i), val);
	}
}

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

	addr = (&GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR])->virt_addr;

	/* Enable bundle and misc interrupts */
	ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF0_MASK_OFFSET,
		   ADF_C3XXX_SMIA0_MASK);
	ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF1_MASK_OFFSET,
		   ADF_C3XXX_SMIA1_MASK);
}

static int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
{
	spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);

	return 0;
}

static void configure_iov_threads(struct adf_accel_dev *accel_dev, bool enable)
{
	adf_gen2_cfg_iov_thds(accel_dev, enable,
			      ADF_C3XXX_AE2FUNC_MAP_GRP_A_NUM_REGS,
			      ADF_C3XXX_AE2FUNC_MAP_GRP_B_NUM_REGS);
}

void adf_init_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class = &c3xxx_class;
	hw_data->instance_id = c3xxx_class.instances++;
	hw_data->num_banks = ADF_C3XXX_ETR_MAX_BANKS;
	hw_data->num_rings_per_bank = ADF_ETR_MAX_RINGS_PER_BANK;
	hw_data->num_accel = ADF_C3XXX_MAX_ACCELERATORS;
	hw_data->num_logical_accel = 1;
	hw_data->num_engines = ADF_C3XXX_MAX_ACCELENGINES;
	hw_data->tx_rx_gap = ADF_C3XXX_RX_RINGS_OFFSET;
	hw_data->tx_rings_mask = ADF_C3XXX_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_accel_cap = adf_gen2_get_accel_cap;
	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_admin_info = adf_gen2_get_admin_info;
	hw_data->get_arb_info = adf_gen2_get_arb_info;
	hw_data->get_sku = get_sku;
	hw_data->fw_name = ADF_C3XXX_FW;
	hw_data->fw_mmp_name = ADF_C3XXX_MMP;
	hw_data->init_admin_comms = adf_init_admin_comms;
	hw_data->exit_admin_comms = adf_exit_admin_comms;
	hw_data->configure_iov_threads = configure_iov_threads;
	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->reset_device = adf_reset_flr;
	hw_data->set_ssm_wdtimer = adf_gen2_set_ssm_wdtimer;
	hw_data->get_pf2vf_offset = get_pf2vf_offset;
	hw_data->enable_pfvf_comms = adf_enable_pf2vf_comms;
	hw_data->disable_iov = adf_disable_sriov;
	hw_data->min_iov_compat_ver = ADF_PFVF_COMPAT_THIS_VERSION;

	adf_gen2_init_hw_csr_ops(&hw_data->csr_ops);
}

void adf_clean_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class->instances--;
}