/*
  This file is provided under a dual BSD/GPLv2 license.  When using or
  redistributing this file, you may do so under either license.

  GPL LICENSE SUMMARY
  Copyright(c) 2014 Intel Corporation.
  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  Contact Information:
  qat-linux@intel.com

  BSD LICENSE
  Copyright(c) 2014 Intel Corporation.
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in
      the documentation and/or other materials provided with the
      distribution.
    * Neither the name of Intel Corporation nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <adf_accel_devices.h>
#include "adf_dh895xcc_hw_data.h"
#include "adf_common_drv.h"
#include "adf_drv.h"

/* Worker thread to service arbiter mappings based on dev SKUs */
static const uint32_t thrd_to_arb_map_sku4[] = {
	0x12222AAA, 0x11666666, 0x12222AAA, 0x11666666,
	0x12222AAA, 0x11222222, 0x12222AAA, 0x11222222,
	0x00000000, 0x00000000, 0x00000000, 0x00000000
};

static const uint32_t thrd_to_arb_map_sku6[] = {
	0x12222AAA, 0x11666666, 0x12222AAA, 0x11666666,
	0x12222AAA, 0x11222222, 0x12222AAA, 0x11222222,
	0x12222AAA, 0x11222222, 0x12222AAA, 0x11222222
};

static struct adf_hw_device_class dh895xcc_class = {
	.name = ADF_DH895XCC_DEVICE_NAME,
	.type = DEV_DH895XCC,
	.instances = 0
};

static uint32_t get_accel_mask(uint32_t fuse)
{
	return (~fuse) >> ADF_DH895XCC_ACCELERATORS_REG_OFFSET &
			  ADF_DH895XCC_ACCELERATORS_MASK;
}

static uint32_t get_ae_mask(uint32_t fuse)
{
	return (~fuse) & ADF_DH895XCC_ACCELENGINES_MASK;
}

static uint32_t get_num_accels(struct adf_hw_device_data *self)
{
	uint32_t i, ctr = 0;

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

	for (i = 0; i < ADF_DH895XCC_MAX_ACCELERATORS; i++) {
		if (self->accel_mask & (1 << i))
			ctr++;
	}
	return ctr;
}

static uint32_t get_num_aes(struct adf_hw_device_data *self)
{
	uint32_t i, ctr = 0;

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

	for (i = 0; i < ADF_DH895XCC_MAX_ACCELENGINES; i++) {
		if (self->ae_mask & (1 << i))
			ctr++;
	}
	return ctr;
}

static uint32_t get_misc_bar_id(struct adf_hw_device_data *self)
{
	return ADF_DH895XCC_PMISC_BAR;
}

static uint32_t get_etr_bar_id(struct adf_hw_device_data *self)
{
	return ADF_DH895XCC_ETR_BAR;
}

static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
{
	int sku = (self->fuses & ADF_DH895XCC_FUSECTL_SKU_MASK)
	    >> ADF_DH895XCC_FUSECTL_SKU_SHIFT;

	switch (sku) {
	case ADF_DH895XCC_FUSECTL_SKU_1:
		return DEV_SKU_1;
	case ADF_DH895XCC_FUSECTL_SKU_2:
		return DEV_SKU_2;
	case ADF_DH895XCC_FUSECTL_SKU_3:
		return DEV_SKU_3;
	case ADF_DH895XCC_FUSECTL_SKU_4:
		return DEV_SKU_4;
	default:
		return DEV_SKU_UNKNOWN;
	}
	return DEV_SKU_UNKNOWN;
}

void adf_get_arbiter_mapping(struct adf_accel_dev *accel_dev,
			     uint32_t const **arb_map_config)
{
	switch (accel_dev->accel_pci_dev.sku) {
	case DEV_SKU_1:
		*arb_map_config = thrd_to_arb_map_sku4;
		break;

	case DEV_SKU_2:
	case DEV_SKU_4:
		*arb_map_config = thrd_to_arb_map_sku6;
		break;
	default:
		pr_err("QAT: The configuration doesn't match any SKU");
		*arb_map_config = NULL;
	}
}

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_DH895XCC_PMISC_BAR];
	void __iomem *csr = misc_bar->virt_addr;
	unsigned int val, i;

	/* Enable Accel Engine error detection & correction */
	for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
		val = ADF_CSR_RD(csr, ADF_DH895XCC_AE_CTX_ENABLES(i));
		val |= ADF_DH895XCC_ENABLE_AE_ECC_ERR;
		ADF_CSR_WR(csr, ADF_DH895XCC_AE_CTX_ENABLES(i), val);
		val = ADF_CSR_RD(csr, ADF_DH895XCC_AE_MISC_CONTROL(i));
		val |= ADF_DH895XCC_ENABLE_AE_ECC_PARITY_CORR;
		ADF_CSR_WR(csr, ADF_DH895XCC_AE_MISC_CONTROL(i), val);
	}

	/* Enable shared memory error detection & correction */
	for (i = 0; i < hw_device->get_num_accels(hw_device); i++) {
		val = ADF_CSR_RD(csr, ADF_DH895XCC_UERRSSMSH(i));
		val |= ADF_DH895XCC_ERRSSMSH_EN;
		ADF_CSR_WR(csr, ADF_DH895XCC_UERRSSMSH(i), val);
		val = ADF_CSR_RD(csr, ADF_DH895XCC_CERRSSMSH(i));
		val |= ADF_DH895XCC_ERRSSMSH_EN;
		ADF_CSR_WR(csr, ADF_DH895XCC_CERRSSMSH(i), val);
	}
}

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

	addr = (&GET_BARS(accel_dev)[ADF_DH895XCC_PMISC_BAR])->virt_addr;

	/* Enable bundle and misc interrupts */
	ADF_CSR_WR(addr, ADF_DH895XCC_SMIAPF0_MASK_OFFSET,
		   ADF_DH895XCC_SMIA0_MASK);
	ADF_CSR_WR(addr, ADF_DH895XCC_SMIAPF1_MASK_OFFSET,
		   ADF_DH895XCC_SMIA1_MASK);
}

void adf_init_hw_data_dh895xcc(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class = &dh895xcc_class;
	hw_data->instance_id = dh895xcc_class.instances++;
	hw_data->num_banks = ADF_DH895XCC_ETR_MAX_BANKS;
	hw_data->num_accel = ADF_DH895XCC_MAX_ACCELERATORS;
	hw_data->pci_dev_id = ADF_DH895XCC_PCI_DEVICE_ID;
	hw_data->num_logical_accel = 1;
	hw_data->num_engines = ADF_DH895XCC_MAX_ACCELENGINES;
	hw_data->tx_rx_gap = ADF_DH895XCC_RX_RINGS_OFFSET;
	hw_data->tx_rings_mask = ADF_DH895XCC_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->hw_arb_ring_enable = adf_update_ring_arb_enable;
	hw_data->hw_arb_ring_disable = adf_update_ring_arb_enable;
	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_etr_bar_id = get_etr_bar_id;
	hw_data->get_misc_bar_id = get_misc_bar_id;
	hw_data->get_sku = get_sku;
	hw_data->fw_name = ADF_DH895XCC_FW;
	hw_data->init_admin_comms = adf_init_admin_comms;
	hw_data->exit_admin_comms = adf_exit_admin_comms;
	hw_data->init_arb = adf_init_arb;
	hw_data->exit_arb = adf_exit_arb;
	hw_data->enable_ints = adf_enable_ints;
}

void adf_clean_hw_data_dh895xcc(struct adf_hw_device_data *hw_data)
{
	hw_data->dev_class->instances--;
}
