drivers/crypto/qat/qat_common/adf_admin.c

   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 <linux/types.h>
  48 #include <linux/mutex.h>
  49 #include <linux/slab.h>
  50 #include <linux/delay.h>
  51 #include <linux/pci.h>
  52 #include <linux/dma-mapping.h>
  53 #include "adf_accel_devices.h"
  54 #include "adf_common_drv.h"
  55 #include "icp_qat_fw_init_admin.h"
  56
  57 /* Admin Messages Registers */
  58 #define ADF_DH895XCC_ADMINMSGUR_OFFSET (0x3A000 + 0x574)
  59 #define ADF_DH895XCC_ADMINMSGLR_OFFSET (0x3A000 + 0x578)
  60 #define ADF_DH895XCC_MAILBOX_BASE_OFFSET 0x20970
  61 #define ADF_DH895XCC_MAILBOX_STRIDE 0x1000
  62 #define ADF_ADMINMSG_LEN 32
  63
  64 static const u8 const_tab[1024] = {
  65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  68 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  69 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
  71 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00,
  72 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  73 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
  74 0x00, 0x00, 0x00, 0x03, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01,
  75 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  76 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x02, 0x00, 0x00,
  77 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13,
  78 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00,
  79 0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
  80 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  81 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  82 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  83 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  85 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  87 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
  88 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  89 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76,
  90 0x54, 0x32, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab,
  92 0x89, 0x98, 0xba, 0xdc, 0xfe, 0x10, 0x32, 0x54, 0x76, 0xc3, 0xd2, 0xe1, 0xf0,
  93 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  94 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  95 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0x05, 0x9e,
  96 0xd8, 0x36, 0x7c, 0xd5, 0x07, 0x30, 0x70, 0xdd, 0x17, 0xf7, 0x0e, 0x59, 0x39,
  97 0xff, 0xc0, 0x0b, 0x31, 0x68, 0x58, 0x15, 0x11, 0x64, 0xf9, 0x8f, 0xa7, 0xbe,
  98 0xfa, 0x4f, 0xa4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  99 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xbb, 0x67, 0xae,
 100 0x85, 0x3c, 0x6e, 0xf3, 0x72, 0xa5, 0x4f, 0xf5, 0x3a, 0x51, 0x0e, 0x52, 0x7f,
 101 0x9b, 0x05, 0x68, 0x8c, 0x1f, 0x83, 0xd9, 0xab, 0x5b, 0xe0, 0xcd, 0x19, 0x05,
 102 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 103 0x00, 0x00, 0xcb, 0xbb, 0x9d, 0x5d, 0xc1, 0x05, 0x9e, 0xd8, 0x62, 0x9a, 0x29,
 104 0x2a, 0x36, 0x7c, 0xd5, 0x07, 0x91, 0x59, 0x01, 0x5a, 0x30, 0x70, 0xdd, 0x17,
 105 0x15, 0x2f, 0xec, 0xd8, 0xf7, 0x0e, 0x59, 0x39, 0x67, 0x33, 0x26, 0x67, 0xff,
 106 0xc0, 0x0b, 0x31, 0x8e, 0xb4, 0x4a, 0x87, 0x68, 0x58, 0x15, 0x11, 0xdb, 0x0c,
 107 0x2e, 0x0d, 0x64, 0xf9, 0x8f, 0xa7, 0x47, 0xb5, 0x48, 0x1d, 0xbe, 0xfa, 0x4f,
 108 0xa4, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 109 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xf3, 0xbc, 0xc9, 0x08, 0xbb,
 110 0x67, 0xae, 0x85, 0x84, 0xca, 0xa7, 0x3b, 0x3c, 0x6e, 0xf3, 0x72, 0xfe, 0x94,
 111 0xf8, 0x2b, 0xa5, 0x4f, 0xf5, 0x3a, 0x5f, 0x1d, 0x36, 0xf1, 0x51, 0x0e, 0x52,
 112 0x7f, 0xad, 0xe6, 0x82, 0xd1, 0x9b, 0x05, 0x68, 0x8c, 0x2b, 0x3e, 0x6c, 0x1f,
 113 0x1f, 0x83, 0xd9, 0xab, 0xfb, 0x41, 0xbd, 0x6b, 0x5b, 0xe0, 0xcd, 0x19, 0x13,
 114 0x7e, 0x21, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 115 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 116 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 117 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 118 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 119 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 120 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 121 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 122 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 123 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 124 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 125 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 126 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 127 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 128 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 129 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 130 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 131 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 132 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 133 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 134 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 135 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 136 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 137 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 138 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 139 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 141 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 142 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 143 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 144
 145 struct adf_admin_comms {
 146         dma_addr_t phy_addr;
 147         dma_addr_t const_tbl_addr;
 148         void *virt_addr;
 149         void __iomem *mailbox_addr;
 150         struct mutex lock;      /* protects adf_admin_comms struct */
 151 };
 152
 153 static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae,
 154                                   void *in, void *out)
 155 {
 156         struct adf_admin_comms *admin = accel_dev->admin;
 157         int offset = ae * ADF_ADMINMSG_LEN * 2;
 158         void __iomem *mailbox = admin->mailbox_addr;
 159         int mb_offset = ae * ADF_DH895XCC_MAILBOX_STRIDE;
 160         int times, received;
 161
 162         mutex_lock(&admin->lock);
 163
 164         if (ADF_CSR_RD(mailbox, mb_offset) == 1) {
 165                 mutex_unlock(&admin->lock);
 166                 return -EAGAIN;
 167         }
 168
 169         memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN);
 170         ADF_CSR_WR(mailbox, mb_offset, 1);
 171         received = 0;
 172         for (times = 0; times < 50; times++) {
 173                 msleep(20);
 174                 if (ADF_CSR_RD(mailbox, mb_offset) == 0) {
 175                         received = 1;
 176                         break;
 177                 }
 178         }
 179         if (received)
 180                 memcpy(out, admin->virt_addr + offset +
 181                        ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN);
 182         else
 183                 dev_err(&GET_DEV(accel_dev),
 184                         "Failed to send admin msg to accelerator\n");
 185
 186         mutex_unlock(&admin->lock);
 187         return received ? 0 : -EFAULT;
 188 }
 189
 190 static int adf_send_admin_cmd(struct adf_accel_dev *accel_dev, int cmd)
 191 {
 192         struct adf_hw_device_data *hw_device = accel_dev->hw_device;
 193         struct icp_qat_fw_init_admin_req req;
 194         struct icp_qat_fw_init_admin_resp resp;
 195         int i;
 196
 197         memset(&req, 0, sizeof(struct icp_qat_fw_init_admin_req));
 198         req.init_admin_cmd_id = cmd;
 199
 200         if (cmd == ICP_QAT_FW_CONSTANTS_CFG) {
 201                 req.init_cfg_sz = 1024;
 202                 req.init_cfg_ptr = accel_dev->admin->const_tbl_addr;
 203         }
 204         for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
 205                 memset(&resp, 0, sizeof(struct icp_qat_fw_init_admin_resp));
 206                 if (adf_put_admin_msg_sync(accel_dev, i, &req, &resp) ||
 207                     resp.init_resp_hdr.status)
 208                         return -EFAULT;
 209         }
 210         return 0;
 211 }
 212
 213 /**
 214  * adf_send_admin_init() - Function sends init message to FW
 215  * @accel_dev: Pointer to acceleration device.
 216  *
 217  * Function sends admin init message to the FW
 218  *
 219  * Return: 0 on success, error code otherwise.
 220  */
 221 int adf_send_admin_init(struct adf_accel_dev *accel_dev)
 222 {
 223         int ret = adf_send_admin_cmd(accel_dev, ICP_QAT_FW_INIT_ME);
 224
 225         if (ret)
 226                 return ret;
 227         return adf_send_admin_cmd(accel_dev, ICP_QAT_FW_CONSTANTS_CFG);
 228 }
 229 EXPORT_SYMBOL_GPL(adf_send_admin_init);
 230
 231 int adf_init_admin_comms(struct adf_accel_dev *accel_dev)
 232 {
 233         struct adf_admin_comms *admin;
 234         struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 235         struct adf_bar *pmisc =
 236                 &GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
 237         void __iomem *csr = pmisc->virt_addr;
 238         void __iomem *mailbox = (void __iomem *)((uintptr_t)csr +
 239                                  ADF_DH895XCC_MAILBOX_BASE_OFFSET);
 240         u64 reg_val;
 241
 242         admin = kzalloc_node(sizeof(*accel_dev->admin), GFP_KERNEL,
 243                              dev_to_node(&GET_DEV(accel_dev)));
 244         if (!admin)
 245                 return -ENOMEM;
 246         admin->virt_addr = dma_zalloc_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 247                                                &admin->phy_addr, GFP_KERNEL);
 248         if (!admin->virt_addr) {
 249                 dev_err(&GET_DEV(accel_dev), "Failed to allocate dma buff\n");
 250                 kfree(admin);
 251                 return -ENOMEM;
 252         }
 253
 254         admin->const_tbl_addr = dma_map_single(&GET_DEV(accel_dev),
 255                                                (void *) const_tab, 1024,
 256                                                DMA_TO_DEVICE);
 257
 258         if (unlikely(dma_mapping_error(&GET_DEV(accel_dev),
 259                                        admin->const_tbl_addr))) {
 260                 dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 261                                   admin->virt_addr, admin->phy_addr);
 262                 kfree(admin);
 263                 return -ENOMEM;
 264         }
 265         reg_val = (u64)admin->phy_addr;
 266         ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGUR_OFFSET, reg_val >> 32);
 267         ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGLR_OFFSET, reg_val);
 268         mutex_init(&admin->lock);
 269         admin->mailbox_addr = mailbox;
 270         accel_dev->admin = admin;
 271         return 0;
 272 }
 273 EXPORT_SYMBOL_GPL(adf_init_admin_comms);
 274
 275 void adf_exit_admin_comms(struct adf_accel_dev *accel_dev)
 276 {
 277         struct adf_admin_comms *admin = accel_dev->admin;
 278
 279         if (!admin)
 280                 return;
 281
 282         if (admin->virt_addr)
 283                 dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 284                                   admin->virt_addr, admin->phy_addr);
 285
 286         dma_unmap_single(&GET_DEV(accel_dev), admin->const_tbl_addr, 1024,
 287                          DMA_TO_DEVICE);
 288         mutex_destroy(&admin->lock);
 289         kfree(admin);
 290         accel_dev->admin = NULL;
 291 }
 292 EXPORT_SYMBOL_GPL(adf_exit_admin_comms);