diff options
Diffstat (limited to 'sound/soc/sof/intel/hda.c')
| -rw-r--r-- | sound/soc/sof/intel/hda.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 7ca27000c34d..d04844d6b104 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -46,6 +46,12 @@ struct hda_dsp_msg_code { const char *msg; }; +static bool hda_use_msi = IS_ENABLED(CONFIG_PCI); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG) +module_param_named(use_msi, hda_use_msi, bool, 0444); +MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode"); +#endif + 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"}, @@ -525,11 +531,18 @@ int hda_dsp_probe(struct snd_sof_dev *sdev) * 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 + * TODO: support msi multiple vectors */ - ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI); - if (ret < 0) { + if (hda_use_msi && pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI) > 0) { + 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; + /* initialised to "false" by kzalloc() */ + sdev->msi_enabled = true; + } + + if (!sdev->msi_enabled) { dev_info(sdev->dev, "use legacy interrupt mode\n"); /* * in IO-APIC mode, hda->irq and ipc_irq are using the same @@ -537,13 +550,6 @@ int hda_dsp_probe(struct snd_sof_dev *sdev) */ 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); |