LXR linux/sound/soc/sof/intel/bdw.c

   1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
   2//
   3// This file is provided under a dual BSD/GPLv2 license.  When using or
   4// redistributing this file, you may do so under either license.
   5//
   6// Copyright(c) 2018 Intel Corporation. All rights reserved.
   7//
   8// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
   9//
  10
  11/*
  12 * Hardware interface for audio DSP on Broadwell
  13 */
  14
  15#include <linux/module.h>
  16#include <sound/sof.h>
  17#include <sound/sof/xtensa.h>
  18#include "../ops.h"
  19#include "shim.h"
  20#include "../sof-audio.h"
  21
  22/* BARs */
  23#define BDW_DSP_BAR 0
  24#define BDW_PCI_BAR 1
  25
  26/*
  27 * Debug
  28 */
  29
  30/* DSP memories for BDW */
  31#define IRAM_OFFSET     0xA0000
  32#define BDW_IRAM_SIZE       (10 * 32 * 1024)
  33#define DRAM_OFFSET     0x00000
  34#define BDW_DRAM_SIZE       (20 * 32 * 1024)
  35#define SHIM_OFFSET     0xFB000
  36#define SHIM_SIZE       0x100
  37#define MBOX_OFFSET     0x9E000
  38#define MBOX_SIZE       0x1000
  39#define MBOX_DUMP_SIZE 0x30
  40#define EXCEPT_OFFSET   0x800
  41#define EXCEPT_MAX_HDR_SIZE     0x400
  42
  43/* DSP peripherals */
  44#define DMAC0_OFFSET    0xFE000
  45#define DMAC1_OFFSET    0xFF000
  46#define DMAC_SIZE       0x420
  47#define SSP0_OFFSET     0xFC000
  48#define SSP1_OFFSET     0xFD000
  49#define SSP_SIZE        0x100
  50
  51#define BDW_STACK_DUMP_SIZE     32
  52
  53#define BDW_PANIC_OFFSET(x)     ((x) & 0xFFFF)
  54
  55static const struct snd_sof_debugfs_map bdw_debugfs[] = {
  56        {"dmac0", BDW_DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
  57         SOF_DEBUGFS_ACCESS_ALWAYS},
  58        {"dmac1", BDW_DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
  59         SOF_DEBUGFS_ACCESS_ALWAYS},
  60        {"ssp0", BDW_DSP_BAR, SSP0_OFFSET, SSP_SIZE,
  61         SOF_DEBUGFS_ACCESS_ALWAYS},
  62        {"ssp1", BDW_DSP_BAR, SSP1_OFFSET, SSP_SIZE,
  63         SOF_DEBUGFS_ACCESS_ALWAYS},
  64        {"iram", BDW_DSP_BAR, IRAM_OFFSET, BDW_IRAM_SIZE,
  65         SOF_DEBUGFS_ACCESS_D0_ONLY},
  66        {"dram", BDW_DSP_BAR, DRAM_OFFSET, BDW_DRAM_SIZE,
  67         SOF_DEBUGFS_ACCESS_D0_ONLY},
  68        {"shim", BDW_DSP_BAR, SHIM_OFFSET, SHIM_SIZE,
  69         SOF_DEBUGFS_ACCESS_ALWAYS},
  70};
  71
  72static void bdw_host_done(struct snd_sof_dev *sdev);
  73static void bdw_dsp_done(struct snd_sof_dev *sdev);
  74static void bdw_get_reply(struct snd_sof_dev *sdev);
  75
  76/*
  77 * DSP Control.
  78 */
  79
  80static int bdw_run(struct snd_sof_dev *sdev)
  81{
  82        /* set opportunistic mode on engine 0,1 for all channels */
  83        snd_sof_dsp_update_bits(sdev, BDW_DSP_BAR, SHIM_HMDC,
  84                                SHIM_HMDC_HDDA_E0_ALLCH |
  85                                SHIM_HMDC_HDDA_E1_ALLCH, 0);
  86
  87        /* set DSP to RUN */
  88        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_CSR,
  89                                         SHIM_CSR_STALL, 0x0);
  90
  91        /* return init core mask */
  92        return 1;
  93}
  94
  95static int bdw_reset(struct snd_sof_dev *sdev)
  96{
  97        /* put DSP into reset and stall */
  98        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_CSR,
  99                                         SHIM_CSR_RST | SHIM_CSR_STALL,
 100                                         SHIM_CSR_RST | SHIM_CSR_STALL);
 101
 102        /* keep in reset for 10ms */
 103        mdelay(10);
 104
 105        /* take DSP out of reset and keep stalled for FW loading */
 106        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_CSR,
 107                                         SHIM_CSR_RST | SHIM_CSR_STALL,
 108                                         SHIM_CSR_STALL);
 109
 110        return 0;
 111}
 112
 113static int bdw_set_dsp_D0(struct snd_sof_dev *sdev)
 114{
 115        int tries = 10;
 116        u32 reg;
 117
 118        /* Disable core clock gating (VDRTCTL2.DCLCGE = 0) */
 119        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_VDRTCTL2,
 120                                         PCI_VDRTCL2_DCLCGE |
 121                                         PCI_VDRTCL2_DTCGE, 0);
 122
 123        /* Disable D3PG (VDRTCTL0.D3PGD = 1) */
 124        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_VDRTCTL0,
 125                                         PCI_VDRTCL0_D3PGD, PCI_VDRTCL0_D3PGD);
 126
 127        /* Set D0 state */
 128        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_PMCS,
 129                                         PCI_PMCS_PS_MASK, 0);
 130
 131        /* check that ADSP shim is enabled */
 132        while (tries--) {
 133                reg = readl(sdev->bar[BDW_PCI_BAR] + PCI_PMCS)
 134                        & PCI_PMCS_PS_MASK;
 135                if (reg == 0)
 136                        goto finish;
 137
 138                msleep(20);
 139        }
 140
 141        return -ENODEV;
 142
 143finish:
 144        /*
 145         * select SSP1 19.2MHz base clock, SSP clock 0,
 146         * turn off Low Power Clock
 147         */
 148        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_CSR,
 149                                         SHIM_CSR_S1IOCS | SHIM_CSR_SBCS1 |
 150                                         SHIM_CSR_LPCS, 0x0);
 151
 152        /* stall DSP core, set clk to 192/96Mhz */
 153        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR,
 154                                         SHIM_CSR, SHIM_CSR_STALL |
 155                                         SHIM_CSR_DCS_MASK,
 156                                         SHIM_CSR_STALL |
 157                                         SHIM_CSR_DCS(4));
 158
 159        /* Set 24MHz MCLK, prevent local clock gating, enable SSP0 clock */
 160        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_CLKCTL,
 161                                         SHIM_CLKCTL_MASK |
 162                                         SHIM_CLKCTL_DCPLCG |
 163                                         SHIM_CLKCTL_SCOE0,
 164                                         SHIM_CLKCTL_MASK |
 165                                         SHIM_CLKCTL_DCPLCG |
 166                                         SHIM_CLKCTL_SCOE0);
 167
 168        /* Stall and reset core, set CSR */
 169        bdw_reset(sdev);
 170
 171        /* Enable core clock gating (VDRTCTL2.DCLCGE = 1), delay 50 us */
 172        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_VDRTCTL2,
 173                                         PCI_VDRTCL2_DCLCGE |
 174                                         PCI_VDRTCL2_DTCGE,
 175                                         PCI_VDRTCL2_DCLCGE |
 176                                         PCI_VDRTCL2_DTCGE);
 177
 178        usleep_range(50, 55);
 179
 180        /* switch on audio PLL */
 181        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_VDRTCTL2,
 182                                         PCI_VDRTCL2_APLLSE_MASK, 0);
 183
 184        /*
 185         * set default power gating control, enable power gating control for
 186         * all blocks. that is, can't be accessed, please enable each block
 187         * before accessing.
 188         */
 189        snd_sof_dsp_update_bits_unlocked(sdev, BDW_PCI_BAR, PCI_VDRTCTL0,
 190                                         0xfffffffC, 0x0);
 191
 192        /* disable DMA finish function for SSP0 & SSP1 */
 193        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR,  SHIM_CSR2,
 194                                         SHIM_CSR2_SDFD_SSP1,
 195                                         SHIM_CSR2_SDFD_SSP1);
 196
 197        /* set on-demond mode on engine 0,1 for all channels */
 198        snd_sof_dsp_update_bits(sdev, BDW_DSP_BAR, SHIM_HMDC,
 199                                SHIM_HMDC_HDDA_E0_ALLCH |
 200                                SHIM_HMDC_HDDA_E1_ALLCH,
 201                                SHIM_HMDC_HDDA_E0_ALLCH |
 202                                SHIM_HMDC_HDDA_E1_ALLCH);
 203
 204        /* Enable Interrupt from both sides */
 205        snd_sof_dsp_update_bits(sdev, BDW_DSP_BAR, SHIM_IMRX,
 206                                (SHIM_IMRX_BUSY | SHIM_IMRX_DONE), 0x0);
 207        snd_sof_dsp_update_bits(sdev, BDW_DSP_BAR, SHIM_IMRD,
 208                                (SHIM_IMRD_DONE | SHIM_IMRD_BUSY |
 209                                SHIM_IMRD_SSP0 | SHIM_IMRD_DMAC), 0x0);
 210
 211        /* clear IPC registers */
 212        snd_sof_dsp_write(sdev, BDW_DSP_BAR, SHIM_IPCX, 0x0);
 213        snd_sof_dsp_write(sdev, BDW_DSP_BAR, SHIM_IPCD, 0x0);
 214        snd_sof_dsp_write(sdev, BDW_DSP_BAR, 0x80, 0x6);
 215        snd_sof_dsp_write(sdev, BDW_DSP_BAR, 0xe0, 0x300a);
 216
 217        return 0;
 218}
 219
 220static void bdw_get_registers(struct snd_sof_dev *sdev,
 221                              struct sof_ipc_dsp_oops_xtensa *xoops,
 222                              struct sof_ipc_panic_info *panic_info,
 223                              u32 *stack, size_t stack_words)
 224{
 225        u32 offset = sdev->dsp_oops_offset;
 226
 227        /* first read registers */
 228        sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
 229
 230        /* note: variable AR register array is not read */
 231
 232        /* then get panic info */
 233        if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
 234                dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
 235                        xoops->arch_hdr.totalsize);
 236                return;
 237        }
 238        offset += xoops->arch_hdr.totalsize;
 239        sof_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));
 240
 241        /* then get the stack */
 242        offset += sizeof(*panic_info);
 243        sof_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
 244}
 245
 246static void bdw_dump(struct snd_sof_dev *sdev, u32 flags)
 247{
 248        struct sof_ipc_dsp_oops_xtensa xoops;
 249        struct sof_ipc_panic_info panic_info;
 250        u32 stack[BDW_STACK_DUMP_SIZE];
 251        u32 status, panic, imrx, imrd;
 252
 253        /* now try generic SOF status messages */
 254        status = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IPCD);
 255        panic = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IPCX);
 256        bdw_get_registers(sdev, &xoops, &panic_info, stack,
 257                          BDW_STACK_DUMP_SIZE);
 258        snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
 259                           BDW_STACK_DUMP_SIZE);
 260
 261        /* provide some context for firmware debug */
 262        imrx = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IMRX);
 263        imrd = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IMRD);
 264        dev_err(sdev->dev,
 265                "error: ipc host -> DSP: pending %s complete %s raw 0x%8.8x\n",
 266                (panic & SHIM_IPCX_BUSY) ? "yes" : "no",
 267                (panic & SHIM_IPCX_DONE) ? "yes" : "no", panic);
 268        dev_err(sdev->dev,
 269                "error: mask host: pending %s complete %s raw 0x%8.8x\n",
 270                (imrx & SHIM_IMRX_BUSY) ? "yes" : "no",
 271                (imrx & SHIM_IMRX_DONE) ? "yes" : "no", imrx);
 272        dev_err(sdev->dev,
 273                "error: ipc DSP -> host: pending %s complete %s raw 0x%8.8x\n",
 274                (status & SHIM_IPCD_BUSY) ? "yes" : "no",
 275                (status & SHIM_IPCD_DONE) ? "yes" : "no", status);
 276        dev_err(sdev->dev,
 277                "error: mask DSP: pending %s complete %s raw 0x%8.8x\n",
 278                (imrd & SHIM_IMRD_BUSY) ? "yes" : "no",
 279                (imrd & SHIM_IMRD_DONE) ? "yes" : "no", imrd);
 280}
 281
 282/*
 283 * IPC Doorbell IRQ handler and thread.
 284 */
 285
 286static irqreturn_t bdw_irq_handler(int irq, void *context)
 287{
 288        struct snd_sof_dev *sdev = context;
 289        u32 isr;
 290        int ret = IRQ_NONE;
 291
 292        /* Interrupt arrived, check src */
 293        isr = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_ISRX);
 294        if (isr & (SHIM_ISRX_DONE | SHIM_ISRX_BUSY))
 295                ret = IRQ_WAKE_THREAD;
 296
 297        return ret;
 298}
 299
 300static irqreturn_t bdw_irq_thread(int irq, void *context)
 301{
 302        struct snd_sof_dev *sdev = context;
 303        u32 ipcx, ipcd, imrx;
 304
 305        imrx = snd_sof_dsp_read64(sdev, BDW_DSP_BAR, SHIM_IMRX);
 306        ipcx = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IPCX);
 307
 308        /* reply message from DSP */
 309        if (ipcx & SHIM_IPCX_DONE &&
 310            !(imrx & SHIM_IMRX_DONE)) {
 311                /* Mask Done interrupt before return */
 312                snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR,
 313                                                 SHIM_IMRX, SHIM_IMRX_DONE,
 314                                                 SHIM_IMRX_DONE);
 315
 316                spin_lock_irq(&sdev->ipc_lock);
 317
 318                /*
 319                 * handle immediate reply from DSP core. If the msg is
 320                 * found, set done bit in cmd_done which is called at the
 321                 * end of message processing function, else set it here
 322                 * because the done bit can't be set in cmd_done function
 323                 * which is triggered by msg
 324                 */
 325                bdw_get_reply(sdev);
 326                snd_sof_ipc_reply(sdev, ipcx);
 327
 328                bdw_dsp_done(sdev);
 329
 330                spin_unlock_irq(&sdev->ipc_lock);
 331        }
 332
 333        ipcd = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IPCD);
 334
 335        /* new message from DSP */
 336        if (ipcd & SHIM_IPCD_BUSY &&
 337            !(imrx & SHIM_IMRX_BUSY)) {
 338                /* Mask Busy interrupt before return */
 339                snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR,
 340                                                 SHIM_IMRX, SHIM_IMRX_BUSY,
 341                                                 SHIM_IMRX_BUSY);
 342
 343                /* Handle messages from DSP Core */
 344                if ((ipcd & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
 345                        snd_sof_dsp_panic(sdev, BDW_PANIC_OFFSET(ipcx) +
 346                                          MBOX_OFFSET);
 347                } else {
 348                        snd_sof_ipc_msgs_rx(sdev);
 349                }
 350
 351                bdw_host_done(sdev);
 352        }
 353
 354        return IRQ_HANDLED;
 355}
 356
 357/*
 358 * IPC Mailbox IO
 359 */
 360
 361static int bdw_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
 362{
 363        /* send the message */
 364        sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
 365                          msg->msg_size);
 366        snd_sof_dsp_write(sdev, BDW_DSP_BAR, SHIM_IPCX, SHIM_IPCX_BUSY);
 367
 368        return 0;
 369}
 370
 371static void bdw_get_reply(struct snd_sof_dev *sdev)
 372{
 373        struct snd_sof_ipc_msg *msg = sdev->msg;
 374        struct sof_ipc_reply reply;
 375        int ret = 0;
 376
 377        /*
 378         * Sometimes, there is unexpected reply ipc arriving. The reply
 379         * ipc belongs to none of the ipcs sent from driver.
 380         * In this case, the driver must ignore the ipc.
 381         */
 382        if (!msg) {
 383                dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
 384                return;
 385        }
 386
 387        /* get reply */
 388        sof_mailbox_read(sdev, sdev->host_box.offset, &reply, sizeof(reply));
 389
 390        if (reply.error < 0) {
 391                memcpy(msg->reply_data, &reply, sizeof(reply));
 392                ret = reply.error;
 393        } else {
 394                /* reply correct size ? */
 395                if (reply.hdr.size != msg->reply_size) {
 396                        dev_err(sdev->dev, "error: reply expected %zu got %u bytes\n",
 397                                msg->reply_size, reply.hdr.size);
 398                        ret = -EINVAL;
 399                }
 400
 401                /* read the message */
 402                if (msg->reply_size > 0)
 403                        sof_mailbox_read(sdev, sdev->host_box.offset,
 404                                         msg->reply_data, msg->reply_size);
 405        }
 406
 407        msg->reply_error = ret;
 408}
 409
 410static int bdw_get_mailbox_offset(struct snd_sof_dev *sdev)
 411{
 412        return MBOX_OFFSET;
 413}
 414
 415static int bdw_get_window_offset(struct snd_sof_dev *sdev, u32 id)
 416{
 417        return MBOX_OFFSET;
 418}
 419
 420static void bdw_host_done(struct snd_sof_dev *sdev)
 421{
 422        /* clear BUSY bit and set DONE bit - accept new messages */
 423        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_IPCD,
 424                                         SHIM_IPCD_BUSY | SHIM_IPCD_DONE,
 425                                         SHIM_IPCD_DONE);
 426
 427        /* unmask busy interrupt */
 428        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_IMRX,
 429                                         SHIM_IMRX_BUSY, 0);
 430}
 431
 432static void bdw_dsp_done(struct snd_sof_dev *sdev)
 433{
 434        /* clear DONE bit - tell DSP we have completed */
 435        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_IPCX,
 436                                         SHIM_IPCX_DONE, 0);
 437
 438        /* unmask Done interrupt */
 439        snd_sof_dsp_update_bits_unlocked(sdev, BDW_DSP_BAR, SHIM_IMRX,
 440                                         SHIM_IMRX_DONE, 0);
 441}
 442
 443/*
 444 * Probe and remove.
 445 */
 446static int bdw_probe(struct snd_sof_dev *sdev)
 447{
 448        struct snd_sof_pdata *pdata = sdev->pdata;
 449        const struct sof_dev_desc *desc = pdata->desc;
 450        struct platform_device *pdev =
 451                container_of(sdev->dev, struct platform_device, dev);
 452        struct resource *mmio;
 453        u32 base, size;
 454        int ret;
 455
 456        /* LPE base */
 457        mmio = platform_get_resource(pdev, IORESOURCE_MEM,
 458                                     desc->resindex_lpe_base);
 459        if (mmio) {
 460                base = mmio->start;
 461                size = resource_size(mmio);
 462        } else {
 463                dev_err(sdev->dev, "error: failed to get LPE base at idx %d\n",
 464                        desc->resindex_lpe_base);
 465                return -EINVAL;
 466        }
 467
 468        dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
 469        sdev->bar[BDW_DSP_BAR] = devm_ioremap(sdev->dev, base, size);
 470        if (!sdev->bar[BDW_DSP_BAR]) {
 471                dev_err(sdev->dev,
 472                        "error: failed to ioremap LPE base 0x%x size 0x%x\n",
 473                        base, size);
 474                return -ENODEV;
 475        }
 476        dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[BDW_DSP_BAR]);
 477
 478        /* TODO: add offsets */
 479        sdev->mmio_bar = BDW_DSP_BAR;
 480        sdev->mailbox_bar = BDW_DSP_BAR;
 481        sdev->dsp_oops_offset = MBOX_OFFSET;
 482
 483        /* PCI base */
 484        mmio = platform_get_resource(pdev, IORESOURCE_MEM,
 485                                     desc->resindex_pcicfg_base);
 486        if (mmio) {
 487                base = mmio->start;
 488                size = resource_size(mmio);
 489        } else {
 490                dev_err(sdev->dev, "error: failed to get PCI base at idx %d\n",
 491                        desc->resindex_pcicfg_base);
 492                return -ENODEV;
 493        }
 494
 495        dev_dbg(sdev->dev, "PCI base at 0x%x size 0x%x", base, size);
 496        sdev->bar[BDW_PCI_BAR] = devm_ioremap(sdev->dev, base, size);
 497        if (!sdev->bar[BDW_PCI_BAR]) {
 498                dev_err(sdev->dev,
 499                        "error: failed to ioremap PCI base 0x%x size 0x%x\n",
 500                        base, size);
 501                return -ENODEV;
 502        }
 503        dev_dbg(sdev->dev, "PCI VADDR %p\n", sdev->bar[BDW_PCI_BAR]);
 504
 505        /* register our IRQ */
 506        sdev->ipc_irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
 507        if (sdev->ipc_irq < 0)
 508                return sdev->ipc_irq;
 509
 510        dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
 511        ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq,
 512                                        bdw_irq_handler, bdw_irq_thread,
 513                                        IRQF_SHARED, "AudioDSP", sdev);
 514        if (ret < 0) {
 515                dev_err(sdev->dev, "error: failed to register IRQ %d\n",
 516                        sdev->ipc_irq);
 517                return ret;
 518        }
 519
 520        /* enable the DSP SHIM */
 521        ret = bdw_set_dsp_D0(sdev);
 522        if (ret < 0) {
 523                dev_err(sdev->dev, "error: failed to set DSP D0\n");
 524                return ret;
 525        }
 526
 527        /* DSP DMA can only access low 31 bits of host memory */
 528        ret = dma_coerce_mask_and_coherent(sdev->dev, DMA_BIT_MASK(31));
 529        if (ret < 0) {
 530                dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
 531                return ret;
 532        }
 533
 534        /* set default mailbox */
 535        snd_sof_dsp_mailbox_init(sdev, MBOX_OFFSET, MBOX_SIZE, 0, 0);
 536
 537        return ret;
 538}
 539
 540static void bdw_machine_select(struct snd_sof_dev *sdev)
 541{
 542        struct snd_sof_pdata *sof_pdata = sdev->pdata;
 543        const struct sof_dev_desc *desc = sof_pdata->desc;
 544        struct snd_soc_acpi_mach *mach;
 545
 546        mach = snd_soc_acpi_find_machine(desc->machines);
 547        if (!mach) {
 548                dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
 549                return;
 550        }
 551
 552        sof_pdata->tplg_filename = mach->sof_tplg_filename;
 553        mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc;
 554        sof_pdata->machine = mach;
 555}
 556
 557static void bdw_set_mach_params(const struct snd_soc_acpi_mach *mach,
 558                                struct device *dev)
 559{
 560        struct snd_soc_acpi_mach_params *mach_params;
 561
 562        mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params;
 563        mach_params->platform = dev_name(dev);
 564}
 565
 566/* Broadwell DAIs */
 567static struct snd_soc_dai_driver bdw_dai[] = {
 568{
 569        .name = "ssp0-port",
 570        .playback = {
 571                .channels_min = 1,
 572                .channels_max = 8,
 573        },
 574        .capture = {
 575                .channels_min = 1,
 576                .channels_max = 8,
 577        },
 578},
 579{
 580        .name = "ssp1-port",
 581        .playback = {
 582                .channels_min = 1,
 583                .channels_max = 8,
 584        },
 585        .capture = {
 586                .channels_min = 1,
 587                .channels_max = 8,
 588        },
 589},
 590};
 591
 592/* broadwell ops */
 593const struct snd_sof_dsp_ops sof_bdw_ops = {
 594        /*Device init */
 595        .probe          = bdw_probe,
 596
 597        /* DSP Core Control */
 598        .run            = bdw_run,
 599        .reset          = bdw_reset,
 600
 601        /* Register IO */
 602        .write          = sof_io_write,
 603        .read           = sof_io_read,
 604        .write64        = sof_io_write64,
 605        .read64         = sof_io_read64,
 606
 607        /* Block IO */
 608        .block_read     = sof_block_read,
 609        .block_write    = sof_block_write,
 610
 611        /* ipc */
 612        .send_msg       = bdw_send_msg,
 613        .fw_ready       = sof_fw_ready,
 614        .get_mailbox_offset = bdw_get_mailbox_offset,
 615        .get_window_offset = bdw_get_window_offset,
 616
 617        .ipc_msg_data   = intel_ipc_msg_data,
 618        .ipc_pcm_params = intel_ipc_pcm_params,
 619
 620        /* machine driver */
 621        .machine_select = bdw_machine_select,
 622        .machine_register = sof_machine_register,
 623        .machine_unregister = sof_machine_unregister,
 624        .set_mach_params = bdw_set_mach_params,
 625
 626        /* debug */
 627        .debug_map  = bdw_debugfs,
 628        .debug_map_count    = ARRAY_SIZE(bdw_debugfs),
 629        .dbg_dump   = bdw_dump,
 630
 631        /* stream callbacks */
 632        .pcm_open       = intel_pcm_open,
 633        .pcm_close      = intel_pcm_close,
 634
 635        /* Module loading */
 636        .load_module    = snd_sof_parse_module_memcpy,
 637
 638        /*Firmware loading */
 639        .load_firmware  = snd_sof_load_firmware_memcpy,
 640
 641        /* DAI drivers */
 642        .drv = bdw_dai,
 643        .num_drv = ARRAY_SIZE(bdw_dai),
 644
 645        /* ALSA HW info flags */
 646        .hw_info =      SNDRV_PCM_INFO_MMAP |
 647                        SNDRV_PCM_INFO_MMAP_VALID |
 648                        SNDRV_PCM_INFO_INTERLEAVED |
 649                        SNDRV_PCM_INFO_PAUSE |
 650                        SNDRV_PCM_INFO_BATCH,
 651
 652        .arch_ops = &sof_xtensa_arch_ops,
 653};
 654EXPORT_SYMBOL_NS(sof_bdw_ops, SND_SOC_SOF_BROADWELL);
 655
 656const struct sof_intel_dsp_desc bdw_chip_info = {
 657        .cores_num = 1,
 658        .cores_mask = 1,
 659};
 660EXPORT_SYMBOL_NS(bdw_chip_info, SND_SOC_SOF_BROADWELL);
 661
 662MODULE_LICENSE("Dual BSD/GPL");
 663MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HIFI_EP_IPC);
 664MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
 665