// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) // // This file is provided under a dual BSD/GPLv2 license. When using or // redistributing this file, you may do so under either license. // // Copyright(c) 2018 Intel Corporation. All rights reserved. // // Authors: Liam Girdwood // Ranjani Sridharan // Rander Wang // Keyon Jie // /* * Hardware interface for generic Intel audio DSP HDA IP */ #include #include #include #include #include "../ops.h" #include "hda.h" #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) #include "../../codecs/hdac_hda.h" #endif #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) #include #endif /* platform specific devices */ #include "shim.h" /* * Debug */ struct hda_dsp_msg_code { u32 code; const char *msg; }; static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = { {HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"}, {HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"}, {HDA_DSP_ROM_FW_ENTERED, "status: fw entered"}, {HDA_DSP_ROM_CSE_ERROR, "error: cse error"}, {HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"}, {HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"}, {HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"}, {HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"}, {HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"}, {HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"}, {HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"}, {HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"}, {HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"}, {HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"}, {HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"}, {HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"}, {HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"}, {HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"}, {HDA_DSP_ROM_NULL_FW_ENTRY, "error: null FW entry point"}, }; static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev) { u32 status; int i; status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_ADSP_FW_STATUS_SKL); for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) { if (status == hda_dsp_rom_msg[i].code) { dev_err(sdev->dev, "%s - code %8.8x\n", hda_dsp_rom_msg[i].msg, status); return; } } /* not for us, must be generic sof message */ dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status); } static void hda_dsp_get_status(struct snd_sof_dev *sdev) { u32 status; int i; status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_ROM_STATUS); for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) { if (status == hda_dsp_rom_msg[i].code) { dev_err(sdev->dev, "%s - code %8.8x\n", hda_dsp_rom_msg[i].msg, status); return; } } /* not for us, must be generic sof message */ dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status); } static void hda_dsp_get_registers(struct snd_sof_dev *sdev, struct sof_ipc_dsp_oops_xtensa *xoops, struct sof_ipc_panic_info *panic_info, u32 *stack, size_t stack_words) { u32 offset = sdev->dsp_oops_offset; /* first read registers */ sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops)); /* note: variable AR register array is not read */ /* then get panic info */ offset += xoops->arch_hdr.totalsize; sof_block_read(sdev, sdev->mmio_bar, offset, panic_info, sizeof(*panic_info)); /* then get the stack */ offset += sizeof(*panic_info); sof_block_read(sdev, sdev->mmio_bar, offset, stack, stack_words * sizeof(u32)); } void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags) { struct sof_ipc_dsp_oops_xtensa xoops; struct sof_ipc_panic_info panic_info; u32 stack[HDA_DSP_STACK_DUMP_SIZE]; u32 status, panic; /* try APL specific status message types first */ hda_dsp_get_status_skl(sdev); /* now try generic SOF status messages */ status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_ADSP_ERROR_CODE_SKL); /*TODO: Check: there is no define in spec, but it is used in the code*/ panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_ADSP_ERROR_CODE_SKL + 0x4); if (sdev->boot_complete) { hda_dsp_get_registers(sdev, &xoops, &panic_info, stack, HDA_DSP_STACK_DUMP_SIZE); snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack, HDA_DSP_STACK_DUMP_SIZE); } else { dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n", status, panic); hda_dsp_get_status_skl(sdev); } } void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags) { struct sof_ipc_dsp_oops_xtensa xoops; struct sof_ipc_panic_info panic_info; u32 stack[HDA_DSP_STACK_DUMP_SIZE]; u32 status, panic; /* try APL specific status message types first */ hda_dsp_get_status(sdev); /* now try generic SOF status messages */ status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_STATUS); panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP); if (sdev->boot_complete) { hda_dsp_get_registers(sdev, &xoops, &panic_info, stack, HDA_DSP_STACK_DUMP_SIZE); snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack, HDA_DSP_STACK_DUMP_SIZE); } else { dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n", status, panic); hda_dsp_get_status(sdev); } } void hda_ipc_dump(struct snd_sof_dev *sdev) { u32 hipcie; u32 hipct; u32 hipcctl; /* read IPC status */ hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE); hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT); hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL); /* dump the IPC regs */ /* TODO: parse the raw msg */ dev_err(sdev->dev, "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n", hipcie, hipct, hipcctl); } static int hda_init(struct snd_sof_dev *sdev) { struct hda_bus *hbus; struct hdac_bus *bus; struct hdac_ext_bus_ops *ext_ops = NULL; struct pci_dev *pci = to_pci_dev(sdev->dev); int ret; hbus = sof_to_hbus(sdev); bus = sof_to_bus(sdev); /* HDA bus init */ #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) ext_ops = snd_soc_hdac_hda_get_ops(); #endif sof_hda_bus_init(bus, &pci->dev, ext_ops); bus->use_posbuf = 1; bus->bdl_pos_adj = 0; mutex_init(&hbus->prepare_mutex); hbus->pci = pci; hbus->mixer_assigned = -1; hbus->modelname = "sofbus"; /* initialise hdac bus */ bus->addr = pci_resource_start(pci, 0); #if IS_ENABLED(CONFIG_PCI) bus->remap_addr = pci_ioremap_bar(pci, 0); #endif if (!bus->remap_addr) { dev_err(bus->dev, "error: ioremap error\n"); return -ENXIO; } /* HDA base */ sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr; /* get controller capabilities */ ret = hda_dsp_ctrl_get_caps(sdev); if (ret < 0) dev_err(sdev->dev, "error: get caps error\n"); return ret; } #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) static const char *fixup_tplg_name(struct snd_sof_dev *sdev, const char *sof_tplg_filename) { const char *tplg_filename = NULL; char *filename; char *split_ext; filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL); if (!filename) return NULL; /* this assumes a .tplg extension */ split_ext = strsep(&filename, "."); if (split_ext) { tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, "%s-idisp.tplg", split_ext); if (!tplg_filename) return NULL; } return tplg_filename; } #endif static int hda_init_caps(struct snd_sof_dev *sdev) { struct hdac_bus *bus = sof_to_bus(sdev); #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) struct hdac_ext_link *hlink; struct snd_soc_acpi_mach_params *mach_params; struct snd_soc_acpi_mach *hda_mach; struct snd_sof_pdata *pdata = sdev->pdata; struct snd_soc_acpi_mach *mach; const char *tplg_filename; int codec_num = 0; int i; #endif int ret = 0; device_disable_async_suspend(bus->dev); /* check if dsp is there */ if (bus->ppcap) dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n"); ret = hda_dsp_ctrl_init_chip(sdev, true); if (ret < 0) { dev_err(bus->dev, "error: init chip failed with ret: %d\n", ret); return ret; } #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) if (bus->mlcap) snd_hdac_ext_bus_get_ml_capabilities(bus); /* init i915 and HDMI codecs */ ret = hda_codec_i915_init(sdev); if (ret < 0) { dev_err(sdev->dev, "error: no HDMI audio devices found\n"); return ret; } /* codec detection */ if (!bus->codec_mask) { dev_info(bus->dev, "no hda codecs found!\n"); } else { dev_info(bus->dev, "hda codecs found, mask %lx\n", bus->codec_mask); for (i = 0; i < HDA_MAX_CODECS; i++) { if (bus->codec_mask & (1 << i)) codec_num++; } /* * If no machine driver is found, then: * * hda machine driver is used if : * 1. there is one HDMI codec and one external HDAudio codec * 2. only HDMI codec */ if (!pdata->machine && codec_num <= 2 && HDA_IDISP_CODEC(bus->codec_mask)) { hda_mach = snd_soc_acpi_intel_hda_machines; pdata->machine = hda_mach; /* topology: use the info from hda_machines */ pdata->tplg_filename = hda_mach->sof_tplg_filename; /* firmware: pick the first in machine list */ mach = pdata->desc->machines; pdata->fw_filename = mach->sof_fw_filename; dev_info(bus->dev, "using HDA machine driver %s now\n", hda_mach->drv_name); /* fixup topology file for HDMI only platforms */ if (codec_num == 1) { /* use local variable for readability */ tplg_filename = pdata->tplg_filename; tplg_filename = fixup_tplg_name(sdev, tplg_filename); if (!tplg_filename) { hda_codec_i915_exit(sdev); return ret; } pdata->tplg_filename = tplg_filename; } } } /* used by hda machine driver to create dai links */ if (pdata->machine) { mach_params = (struct snd_soc_acpi_mach_params *) &pdata->machine->mach_params; mach_params->codec_mask = bus->codec_mask; mach_params->platform = dev_name(sdev->dev); } /* create codec instances */ hda_codec_probe_bus(sdev); hda_codec_i915_put(sdev); /* * we are done probing so decrement link counts */ list_for_each_entry(hlink, &bus->hlink_list, list) snd_hdac_ext_bus_link_put(bus, hlink); #endif return 0; } static const struct sof_intel_dsp_desc *get_chip_info(struct snd_sof_pdata *pdata) { const struct sof_dev_desc *desc = pdata->desc; const struct sof_intel_dsp_desc *chip_info; chip_info = desc->chip_info; return chip_info; } int hda_dsp_probe(struct snd_sof_dev *sdev) { struct pci_dev *pci = to_pci_dev(sdev->dev); struct sof_intel_hda_dev *hdev; struct hdac_bus *bus; const struct sof_intel_dsp_desc *chip; int ret = 0; /* * detect DSP by checking class/subclass/prog-id information * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required * class=04 subclass 01 prog-if 00: DSP is present * (and may be required e.g. for DMIC or SSP support) * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works */ if (pci->class == 0x040300) { dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n"); return -ENODEV; } else if (pci->class != 0x040100 && pci->class != 0x040380) { dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class); return -ENODEV; } dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class); chip = get_chip_info(sdev->pdata); if (!chip) { dev_err(sdev->dev, "error: no such device supported, chip id:%x\n", pci->device); ret = -EIO; goto err; } hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL); if (!hdev) return -ENOMEM; sdev->pdata->hw_pdata = hdev; hdev->desc = chip; hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0); if (IS_ERR(hdev->dmic_dev)) { dev_err(sdev->dev, "error: failed to create DMIC device\n"); return PTR_ERR(hdev->dmic_dev); } /* * use position update IPC if either it is forced * or we don't have other choice */ #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION) hdev->no_ipc_position = 0; #else hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0; #endif /* set up HDA base */ bus = sof_to_bus(sdev); ret = hda_init(sdev); if (ret < 0) goto hdac_bus_unmap; /* DSP base */ #if IS_ENABLED(CONFIG_PCI) sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR); #endif if (!sdev->bar[HDA_DSP_BAR]) { dev_err(sdev->dev, "error: ioremap error\n"); ret = -ENXIO; goto hdac_bus_unmap; } sdev->mmio_bar = HDA_DSP_BAR; sdev->mailbox_bar = HDA_DSP_BAR; /* allow 64bit DMA address if supported by H/W */ if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) { dev_dbg(sdev->dev, "DMA mask is 64 bit\n"); dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64)); } else { dev_dbg(sdev->dev, "DMA mask is 32 bit\n"); dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)); } /* init streams */ ret = hda_dsp_stream_init(sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to init streams\n"); /* * not all errors are due to memory issues, but trying * to free everything does not harm */ goto free_streams; } /* * register our IRQ * let's try to enable msi firstly * if it fails, use legacy interrupt mode * TODO: support interrupt mode selection with kernel parameter * support msi multiple vectors */ ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI); if (ret < 0) { dev_info(sdev->dev, "use legacy interrupt mode\n"); /* * in IO-APIC mode, hda->irq and ipc_irq are using the same * irq number of pci->irq */ hdev->irq = pci->irq; sdev->ipc_irq = pci->irq; sdev->msi_enabled = 0; } else { dev_info(sdev->dev, "use msi interrupt mode\n"); hdev->irq = pci_irq_vector(pci, 0); /* ipc irq number is the same of hda irq */ sdev->ipc_irq = hdev->irq; sdev->msi_enabled = 1; } dev_dbg(sdev->dev, "using HDA IRQ %d\n", hdev->irq); ret = request_threaded_irq(hdev->irq, hda_dsp_stream_interrupt, hda_dsp_stream_threaded_handler, IRQF_SHARED, "AudioHDA", bus); if (ret < 0) { dev_err(sdev->dev, "error: failed to register HDA IRQ %d\n", hdev->irq); goto free_irq_vector; } dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq); ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_ipc_irq_handler, sof_ops(sdev)->irq_thread, IRQF_SHARED, "AudioDSP", sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n", sdev->ipc_irq); goto free_hda_irq; } pci_set_master(pci); synchronize_irq(pci->irq); /* * clear TCSEL to clear playback on some HD Audio * codecs. PCI TCSEL is defined in the Intel manuals. */ snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0); /* init HDA capabilities */ ret = hda_init_caps(sdev); if (ret < 0) goto free_ipc_irq; /* enable DSP features */ snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, SOF_HDA_PPCTL_GPROCEN, SOF_HDA_PPCTL_GPROCEN); /* enable DSP IRQ */ snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, SOF_HDA_PPCTL_PIE, SOF_HDA_PPCTL_PIE); /* initialize waitq for code loading */ init_waitqueue_head(&sdev->waitq); /* set default mailbox offset for FW ready message */ sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET; return 0; free_ipc_irq: free_irq(sdev->ipc_irq, sdev); free_hda_irq: free_irq(hdev->irq, bus); free_irq_vector: if (sdev->msi_enabled) pci_free_irq_vectors(pci); free_streams: hda_dsp_stream_free(sdev); /* dsp_unmap: not currently used */ iounmap(sdev->bar[HDA_DSP_BAR]); hdac_bus_unmap: iounmap(bus->remap_addr); err: return ret; } int hda_dsp_remove(struct snd_sof_dev *sdev) { struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; struct hdac_bus *bus = sof_to_bus(sdev); struct pci_dev *pci = to_pci_dev(sdev->dev); const struct sof_intel_dsp_desc *chip = hda->desc; #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) /* codec removal, invoke bus_device_remove */ snd_hdac_ext_bus_device_remove(bus); #endif if (!IS_ERR_OR_NULL(hda->dmic_dev)) platform_device_unregister(hda->dmic_dev); /* disable DSP IRQ */ snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, SOF_HDA_PPCTL_PIE, 0); /* disable CIE and GIE interrupts */ snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL, SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0); /* disable cores */ if (chip) hda_dsp_core_reset_power_down(sdev, chip->cores_mask); /* disable DSP */ snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, SOF_HDA_PPCTL_GPROCEN, 0); free_irq(sdev->ipc_irq, sdev); free_irq(hda->irq, bus); if (sdev->msi_enabled) pci_free_irq_vectors(pci); hda_dsp_stream_free(sdev); #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) snd_hdac_link_free_all(bus); #endif iounmap(sdev->bar[HDA_DSP_BAR]); iounmap(bus->remap_addr); #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) snd_hdac_ext_bus_exit(bus); #endif hda_codec_i915_exit(sdev); return 0; } MODULE_LICENSE("Dual BSD/GPL");