drivers/crypto/qat/qat_common/adf_admin.c

   1 // SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
   2 /* Copyright(c) 2014 - 2020 Intel Corporation */
   3 #include <linux/types.h>
   4 #include <linux/mutex.h>
   5 #include <linux/slab.h>
   6 #include <linux/iopoll.h>
   7 #include <linux/pci.h>
   8 #include <linux/dma-mapping.h>
   9 #include "adf_accel_devices.h"
  10 #include "adf_common_drv.h"
  11 #include "icp_qat_fw_init_admin.h"
  12
  13 #define ADF_ADMIN_MAILBOX_STRIDE 0x1000
  14 #define ADF_ADMINMSG_LEN 32
  15 #define ADF_CONST_TABLE_SIZE 1024
  16 #define ADF_ADMIN_POLL_DELAY_US 20
  17 #define ADF_ADMIN_POLL_TIMEOUT_US (5 * USEC_PER_SEC)
  18
  19 static const u8 const_tab[1024] __aligned(1024) = {
  20 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  21 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  22 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  23 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  24 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  25 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
  26 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00,
  27 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  28 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
  29 0x00, 0x00, 0x00, 0x03, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01,
  30 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  31 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x02, 0x00, 0x00,
  32 0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13,
  33 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00,
  34 0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
  35 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  36 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  37 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  38 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  39 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  40 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  41 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
  43 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  44 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76,
  45 0x54, 0x32, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab,
  47 0x89, 0x98, 0xba, 0xdc, 0xfe, 0x10, 0x32, 0x54, 0x76, 0xc3, 0xd2, 0xe1, 0xf0,
  48 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  49 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  50 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0x05, 0x9e,
  51 0xd8, 0x36, 0x7c, 0xd5, 0x07, 0x30, 0x70, 0xdd, 0x17, 0xf7, 0x0e, 0x59, 0x39,
  52 0xff, 0xc0, 0x0b, 0x31, 0x68, 0x58, 0x15, 0x11, 0x64, 0xf9, 0x8f, 0xa7, 0xbe,
  53 0xfa, 0x4f, 0xa4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xbb, 0x67, 0xae,
  55 0x85, 0x3c, 0x6e, 0xf3, 0x72, 0xa5, 0x4f, 0xf5, 0x3a, 0x51, 0x0e, 0x52, 0x7f,
  56 0x9b, 0x05, 0x68, 0x8c, 0x1f, 0x83, 0xd9, 0xab, 0x5b, 0xe0, 0xcd, 0x19, 0x05,
  57 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  58 0x00, 0x00, 0xcb, 0xbb, 0x9d, 0x5d, 0xc1, 0x05, 0x9e, 0xd8, 0x62, 0x9a, 0x29,
  59 0x2a, 0x36, 0x7c, 0xd5, 0x07, 0x91, 0x59, 0x01, 0x5a, 0x30, 0x70, 0xdd, 0x17,
  60 0x15, 0x2f, 0xec, 0xd8, 0xf7, 0x0e, 0x59, 0x39, 0x67, 0x33, 0x26, 0x67, 0xff,
  61 0xc0, 0x0b, 0x31, 0x8e, 0xb4, 0x4a, 0x87, 0x68, 0x58, 0x15, 0x11, 0xdb, 0x0c,
  62 0x2e, 0x0d, 0x64, 0xf9, 0x8f, 0xa7, 0x47, 0xb5, 0x48, 0x1d, 0xbe, 0xfa, 0x4f,
  63 0xa4, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  64 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xf3, 0xbc, 0xc9, 0x08, 0xbb,
  65 0x67, 0xae, 0x85, 0x84, 0xca, 0xa7, 0x3b, 0x3c, 0x6e, 0xf3, 0x72, 0xfe, 0x94,
  66 0xf8, 0x2b, 0xa5, 0x4f, 0xf5, 0x3a, 0x5f, 0x1d, 0x36, 0xf1, 0x51, 0x0e, 0x52,
  67 0x7f, 0xad, 0xe6, 0x82, 0xd1, 0x9b, 0x05, 0x68, 0x8c, 0x2b, 0x3e, 0x6c, 0x1f,
  68 0x1f, 0x83, 0xd9, 0xab, 0xfb, 0x41, 0xbd, 0x6b, 0x5b, 0xe0, 0xcd, 0x19, 0x13,
  69 0x7e, 0x21, 0x79, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  70 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  71 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00,
  72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x18,
  73 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  74 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x01, 0x00,
  75 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  76 0x15, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x02, 0x00, 0x00, 0x00,
  77 0x00, 0x00, 0x00, 0x14, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x02,
  78 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  79 0x00, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x25, 0x00, 0x00, 0x00,
  80 0x00, 0x00, 0x00, 0x00, 0x24, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x25,
  81 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00,
  82 0x00, 0x00, 0x12, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43, 0x00, 0x00,
  83 0x00, 0x00, 0x00, 0x00, 0x00, 0x43, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  84 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x01, 0x00, 0x00, 0x00,
  85 0x00, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x01,
  86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  87 0x00, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
  88 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  89 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00,
  90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
  91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  93 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  94 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  95 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  96 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  97 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  98 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
  99
 100 struct adf_admin_comms {
 101         dma_addr_t phy_addr;
 102         dma_addr_t const_tbl_addr;
 103         void *virt_addr;
 104         void *virt_tbl_addr;
 105         void __iomem *mailbox_addr;
 106         struct mutex lock;      /* protects adf_admin_comms struct */
 107 };
 108
 109 static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae,
 110                                   void *in, void *out)
 111 {
 112         int ret;
 113         u32 status;
 114         struct adf_admin_comms *admin = accel_dev->admin;
 115         int offset = ae * ADF_ADMINMSG_LEN * 2;
 116         void __iomem *mailbox = admin->mailbox_addr;
 117         int mb_offset = ae * ADF_ADMIN_MAILBOX_STRIDE;
 118         struct icp_qat_fw_init_admin_req *request = in;
 119
 120         mutex_lock(&admin->lock);
 121
 122         if (ADF_CSR_RD(mailbox, mb_offset) == 1) {
 123                 mutex_unlock(&admin->lock);
 124                 return -EAGAIN;
 125         }
 126
 127         memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN);
 128         ADF_CSR_WR(mailbox, mb_offset, 1);
 129
 130         ret = read_poll_timeout(ADF_CSR_RD, status, status == 0,
 131                                 ADF_ADMIN_POLL_DELAY_US,
 132                                 ADF_ADMIN_POLL_TIMEOUT_US, true,
 133                                 mailbox, mb_offset);
 134         if (ret < 0) {
 135                 /* Response timeout */
 136                 dev_err(&GET_DEV(accel_dev),
 137                         "Failed to send admin msg %d to accelerator %d\n",
 138                         request->cmd_id, ae);
 139         } else {
 140                 /* Response received from admin message, we can now
 141                  * make response data available in "out" parameter.
 142                  */
 143                 memcpy(out, admin->virt_addr + offset +
 144                        ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN);
 145         }
 146
 147         mutex_unlock(&admin->lock);
 148         return ret;
 149 }
 150
 151 static int adf_send_admin(struct adf_accel_dev *accel_dev,
 152                           struct icp_qat_fw_init_admin_req *req,
 153                           struct icp_qat_fw_init_admin_resp *resp,
 154                           const unsigned long ae_mask)
 155 {
 156         u32 ae;
 157
 158         for_each_set_bit(ae, &ae_mask, ICP_QAT_HW_AE_DELIMITER)
 159                 if (adf_put_admin_msg_sync(accel_dev, ae, req, resp) ||
 160                     resp->status)
 161                         return -EFAULT;
 162
 163         return 0;
 164 }
 165
 166 static int adf_init_ae(struct adf_accel_dev *accel_dev)
 167 {
 168         struct icp_qat_fw_init_admin_req req;
 169         struct icp_qat_fw_init_admin_resp resp;
 170         struct adf_hw_device_data *hw_device = accel_dev->hw_device;
 171         u32 ae_mask = hw_device->ae_mask;
 172
 173         memset(&req, 0, sizeof(req));
 174         memset(&resp, 0, sizeof(resp));
 175         req.cmd_id = ICP_QAT_FW_INIT_AE;
 176
 177         return adf_send_admin(accel_dev, &req, &resp, ae_mask);
 178 }
 179
 180 static int adf_set_fw_constants(struct adf_accel_dev *accel_dev)
 181 {
 182         struct icp_qat_fw_init_admin_req req;
 183         struct icp_qat_fw_init_admin_resp resp;
 184         struct adf_hw_device_data *hw_device = accel_dev->hw_device;
 185         u32 ae_mask = hw_device->admin_ae_mask ?: hw_device->ae_mask;
 186
 187         memset(&req, 0, sizeof(req));
 188         memset(&resp, 0, sizeof(resp));
 189         req.cmd_id = ICP_QAT_FW_CONSTANTS_CFG;
 190
 191         req.init_cfg_sz = ADF_CONST_TABLE_SIZE;
 192         req.init_cfg_ptr = accel_dev->admin->const_tbl_addr;
 193
 194         return adf_send_admin(accel_dev, &req, &resp, ae_mask);
 195 }
 196
 197 /**
 198  * adf_send_admin_init() - Function sends init message to FW
 199  * @accel_dev: Pointer to acceleration device.
 200  *
 201  * Function sends admin init message to the FW
 202  *
 203  * Return: 0 on success, error code otherwise.
 204  */
 205 int adf_send_admin_init(struct adf_accel_dev *accel_dev)
 206 {
 207         int ret;
 208
 209         ret = adf_set_fw_constants(accel_dev);
 210         if (ret)
 211                 return ret;
 212
 213         return adf_init_ae(accel_dev);
 214 }
 215 EXPORT_SYMBOL_GPL(adf_send_admin_init);
 216
 217 int adf_init_admin_comms(struct adf_accel_dev *accel_dev)
 218 {
 219         struct adf_admin_comms *admin;
 220         struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 221         struct adf_bar *pmisc =
 222                 &GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
 223         void __iomem *csr = pmisc->virt_addr;
 224         struct admin_info admin_csrs_info;
 225         u32 mailbox_offset, adminmsg_u, adminmsg_l;
 226         void __iomem *mailbox;
 227         u64 reg_val;
 228
 229         admin = kzalloc_node(sizeof(*accel_dev->admin), GFP_KERNEL,
 230                              dev_to_node(&GET_DEV(accel_dev)));
 231         if (!admin)
 232                 return -ENOMEM;
 233         admin->virt_addr = dma_alloc_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 234                                               &admin->phy_addr, GFP_KERNEL);
 235         if (!admin->virt_addr) {
 236                 dev_err(&GET_DEV(accel_dev), "Failed to allocate dma buff\n");
 237                 kfree(admin);
 238                 return -ENOMEM;
 239         }
 240
 241         admin->virt_tbl_addr = dma_alloc_coherent(&GET_DEV(accel_dev),
 242                                                   PAGE_SIZE,
 243                                                   &admin->const_tbl_addr,
 244                                                   GFP_KERNEL);
 245         if (!admin->virt_tbl_addr) {
 246                 dev_err(&GET_DEV(accel_dev), "Failed to allocate const_tbl\n");
 247                 dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 248                                   admin->virt_addr, admin->phy_addr);
 249                 kfree(admin);
 250                 return -ENOMEM;
 251         }
 252
 253         memcpy(admin->virt_tbl_addr, const_tab, sizeof(const_tab));
 254         hw_data->get_admin_info(&admin_csrs_info);
 255
 256         mailbox_offset = admin_csrs_info.mailbox_offset;
 257         mailbox = csr + mailbox_offset;
 258         adminmsg_u = admin_csrs_info.admin_msg_ur;
 259         adminmsg_l = admin_csrs_info.admin_msg_lr;
 260
 261         reg_val = (u64)admin->phy_addr;
 262         ADF_CSR_WR(csr, adminmsg_u, upper_32_bits(reg_val));
 263         ADF_CSR_WR(csr, adminmsg_l, lower_32_bits(reg_val));
 264
 265         mutex_init(&admin->lock);
 266         admin->mailbox_addr = mailbox;
 267         accel_dev->admin = admin;
 268         return 0;
 269 }
 270 EXPORT_SYMBOL_GPL(adf_init_admin_comms);
 271
 272 void adf_exit_admin_comms(struct adf_accel_dev *accel_dev)
 273 {
 274         struct adf_admin_comms *admin = accel_dev->admin;
 275
 276         if (!admin)
 277                 return;
 278
 279         if (admin->virt_addr)
 280                 dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 281                                   admin->virt_addr, admin->phy_addr);
 282         if (admin->virt_tbl_addr)
 283                 dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
 284                                   admin->virt_tbl_addr, admin->const_tbl_addr);
 285
 286         mutex_destroy(&admin->lock);
 287         kfree(admin);
 288         accel_dev->admin = NULL;
 289 }
 290 EXPORT_SYMBOL_GPL(adf_exit_admin_comms);