linux/drivers/crypto/qat/qat_c3xxx/adf_c3xxx_hw_data.c
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   1/*
   2  This file is provided under a dual BSD/GPLv2 license.  When using or
   3  redistributing this file, you may do so under either license.
   4
   5  GPL LICENSE SUMMARY
   6  Copyright(c) 2014 Intel Corporation.
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of version 2 of the GNU General Public License as
   9  published by the Free Software Foundation.
  10
  11  This program is distributed in the hope that it will be useful, but
  12  WITHOUT ANY WARRANTY; without even the implied warranty of
  13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  General Public License for more details.
  15
  16  Contact Information:
  17  qat-linux@intel.com
  18
  19  BSD LICENSE
  20  Copyright(c) 2014 Intel Corporation.
  21  Redistribution and use in source and binary forms, with or without
  22  modification, are permitted provided that the following conditions
  23  are met:
  24
  25        * Redistributions of source code must retain the above copyright
  26          notice, this list of conditions and the following disclaimer.
  27        * Redistributions in binary form must reproduce the above copyright
  28          notice, this list of conditions and the following disclaimer in
  29          the documentation and/or other materials provided with the
  30          distribution.
  31        * Neither the name of Intel Corporation nor the names of its
  32          contributors may be used to endorse or promote products derived
  33          from this software without specific prior written permission.
  34
  35  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  36  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  37  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  38  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  39  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  41  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  42  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  43  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  44  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  45  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  46*/
  47#include <adf_accel_devices.h>
  48#include <adf_common_drv.h>
  49#include <adf_pf2vf_msg.h>
  50#include "adf_c3xxx_hw_data.h"
  51
  52/* Worker thread to service arbiter mappings based on dev SKUs */
  53static const u32 thrd_to_arb_map_6_me_sku[] = {
  54        0x12222AAA, 0x11222AAA, 0x12222AAA,
  55        0x11222AAA, 0x12222AAA, 0x11222AAA
  56};
  57
  58static struct adf_hw_device_class c3xxx_class = {
  59        .name = ADF_C3XXX_DEVICE_NAME,
  60        .type = DEV_C3XXX,
  61        .instances = 0
  62};
  63
  64static u32 get_accel_mask(u32 fuse)
  65{
  66        return (~fuse) >> ADF_C3XXX_ACCELERATORS_REG_OFFSET &
  67                ADF_C3XXX_ACCELERATORS_MASK;
  68}
  69
  70static u32 get_ae_mask(u32 fuse)
  71{
  72        return (~fuse) & ADF_C3XXX_ACCELENGINES_MASK;
  73}
  74
  75static u32 get_num_accels(struct adf_hw_device_data *self)
  76{
  77        u32 i, ctr = 0;
  78
  79        if (!self || !self->accel_mask)
  80                return 0;
  81
  82        for (i = 0; i < ADF_C3XXX_MAX_ACCELERATORS; i++) {
  83                if (self->accel_mask & (1 << i))
  84                        ctr++;
  85        }
  86        return ctr;
  87}
  88
  89static u32 get_num_aes(struct adf_hw_device_data *self)
  90{
  91        u32 i, ctr = 0;
  92
  93        if (!self || !self->ae_mask)
  94                return 0;
  95
  96        for (i = 0; i < ADF_C3XXX_MAX_ACCELENGINES; i++) {
  97                if (self->ae_mask & (1 << i))
  98                        ctr++;
  99        }
 100        return ctr;
 101}
 102
 103static u32 get_misc_bar_id(struct adf_hw_device_data *self)
 104{
 105        return ADF_C3XXX_PMISC_BAR;
 106}
 107
 108static u32 get_etr_bar_id(struct adf_hw_device_data *self)
 109{
 110        return ADF_C3XXX_ETR_BAR;
 111}
 112
 113static u32 get_sram_bar_id(struct adf_hw_device_data *self)
 114{
 115        return 0;
 116}
 117
 118static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
 119{
 120        int aes = get_num_aes(self);
 121
 122        if (aes == 6)
 123                return DEV_SKU_4;
 124
 125        return DEV_SKU_UNKNOWN;
 126}
 127
 128static void adf_get_arbiter_mapping(struct adf_accel_dev *accel_dev,
 129                                    u32 const **arb_map_config)
 130{
 131        switch (accel_dev->accel_pci_dev.sku) {
 132        case DEV_SKU_4:
 133                *arb_map_config = thrd_to_arb_map_6_me_sku;
 134                break;
 135        default:
 136                dev_err(&GET_DEV(accel_dev),
 137                        "The configuration doesn't match any SKU");
 138                *arb_map_config = NULL;
 139        }
 140}
 141
 142static u32 get_pf2vf_offset(u32 i)
 143{
 144        return ADF_C3XXX_PF2VF_OFFSET(i);
 145}
 146
 147static u32 get_vintmsk_offset(u32 i)
 148{
 149        return ADF_C3XXX_VINTMSK_OFFSET(i);
 150}
 151
 152static void adf_enable_error_correction(struct adf_accel_dev *accel_dev)
 153{
 154        struct adf_hw_device_data *hw_device = accel_dev->hw_device;
 155        struct adf_bar *misc_bar = &GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR];
 156        void __iomem *csr = misc_bar->virt_addr;
 157        unsigned int val, i;
 158
 159        /* Enable Accel Engine error detection & correction */
 160        for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
 161                val = ADF_CSR_RD(csr, ADF_C3XXX_AE_CTX_ENABLES(i));
 162                val |= ADF_C3XXX_ENABLE_AE_ECC_ERR;
 163                ADF_CSR_WR(csr, ADF_C3XXX_AE_CTX_ENABLES(i), val);
 164                val = ADF_CSR_RD(csr, ADF_C3XXX_AE_MISC_CONTROL(i));
 165                val |= ADF_C3XXX_ENABLE_AE_ECC_PARITY_CORR;
 166                ADF_CSR_WR(csr, ADF_C3XXX_AE_MISC_CONTROL(i), val);
 167        }
 168
 169        /* Enable shared memory error detection & correction */
 170        for (i = 0; i < hw_device->get_num_accels(hw_device); i++) {
 171                val = ADF_CSR_RD(csr, ADF_C3XXX_UERRSSMSH(i));
 172                val |= ADF_C3XXX_ERRSSMSH_EN;
 173                ADF_CSR_WR(csr, ADF_C3XXX_UERRSSMSH(i), val);
 174                val = ADF_CSR_RD(csr, ADF_C3XXX_CERRSSMSH(i));
 175                val |= ADF_C3XXX_ERRSSMSH_EN;
 176                ADF_CSR_WR(csr, ADF_C3XXX_CERRSSMSH(i), val);
 177        }
 178}
 179
 180static void adf_enable_ints(struct adf_accel_dev *accel_dev)
 181{
 182        void __iomem *addr;
 183
 184        addr = (&GET_BARS(accel_dev)[ADF_C3XXX_PMISC_BAR])->virt_addr;
 185
 186        /* Enable bundle and misc interrupts */
 187        ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF0_MASK_OFFSET,
 188                   ADF_C3XXX_SMIA0_MASK);
 189        ADF_CSR_WR(addr, ADF_C3XXX_SMIAPF1_MASK_OFFSET,
 190                   ADF_C3XXX_SMIA1_MASK);
 191}
 192
 193static int adf_pf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev)
 194{
 195        return 0;
 196}
 197
 198void adf_init_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
 199{
 200        hw_data->dev_class = &c3xxx_class;
 201        hw_data->instance_id = c3xxx_class.instances++;
 202        hw_data->num_banks = ADF_C3XXX_ETR_MAX_BANKS;
 203        hw_data->num_accel = ADF_C3XXX_MAX_ACCELERATORS;
 204        hw_data->num_logical_accel = 1;
 205        hw_data->num_engines = ADF_C3XXX_MAX_ACCELENGINES;
 206        hw_data->tx_rx_gap = ADF_C3XXX_RX_RINGS_OFFSET;
 207        hw_data->tx_rings_mask = ADF_C3XXX_TX_RINGS_MASK;
 208        hw_data->alloc_irq = adf_isr_resource_alloc;
 209        hw_data->free_irq = adf_isr_resource_free;
 210        hw_data->enable_error_correction = adf_enable_error_correction;
 211        hw_data->get_accel_mask = get_accel_mask;
 212        hw_data->get_ae_mask = get_ae_mask;
 213        hw_data->get_num_accels = get_num_accels;
 214        hw_data->get_num_aes = get_num_aes;
 215        hw_data->get_sram_bar_id = get_sram_bar_id;
 216        hw_data->get_etr_bar_id = get_etr_bar_id;
 217        hw_data->get_misc_bar_id = get_misc_bar_id;
 218        hw_data->get_pf2vf_offset = get_pf2vf_offset;
 219        hw_data->get_vintmsk_offset = get_vintmsk_offset;
 220        hw_data->get_sku = get_sku;
 221        hw_data->fw_name = ADF_C3XXX_FW;
 222        hw_data->fw_mmp_name = ADF_C3XXX_MMP;
 223        hw_data->init_admin_comms = adf_init_admin_comms;
 224        hw_data->exit_admin_comms = adf_exit_admin_comms;
 225        hw_data->disable_iov = adf_disable_sriov;
 226        hw_data->send_admin_init = adf_send_admin_init;
 227        hw_data->init_arb = adf_init_arb;
 228        hw_data->exit_arb = adf_exit_arb;
 229        hw_data->get_arb_mapping = adf_get_arbiter_mapping;
 230        hw_data->enable_ints = adf_enable_ints;
 231        hw_data->enable_vf2pf_comms = adf_pf_enable_vf2pf_comms;
 232        hw_data->reset_device = adf_reset_flr;
 233        hw_data->min_iov_compat_ver = ADF_PFVF_COMPATIBILITY_VERSION;
 234}
 235
 236void adf_clean_hw_data_c3xxx(struct adf_hw_device_data *hw_data)
 237{
 238        hw_data->dev_class->instances--;
 239}
 240