From 4bfbbb76e82e5f1e0e114e0831356656b4169c80 Mon Sep 17 00:00:00 2001 From: Rander Wang Date: Thu, 21 Apr 2022 11:33:56 -0500 Subject: [PATCH] ASOC: SOF: pci: add ipc_type override for Intel IPC4 tests MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a kernel module parameter for select the non-default IPC type. This should only be used by developers with access to firmware and topology files, typically Intel and partners. Signed-off-by: Rander Wang Signed-off-by: Pierre-Louis Bossart Signed-off-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220421163358.319489-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/core.c | 7 +++++++ sound/soc/sof/sof-pci-dev.c | 21 +++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index d981a1c3fb05..04b0cf3c822f 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -358,6 +358,13 @@ int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data) sdev->first_boot = true; dev_set_drvdata(dev, sdev); + /* check IPC support */ + if (!(BIT(plat_data->ipc_type) & plat_data->desc->ipc_supported_mask)) { + dev_err(dev, "ipc_type %d is not supported on this platform, mask is %#x\n", + plat_data->ipc_type, plat_data->desc->ipc_supported_mask); + return -EINVAL; + } + /* init ops, if necessary */ ret = sof_ops_init(sdev); if (ret < 0) diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c index 003120721779..cd90da7c92c2 100644 --- a/sound/soc/sof/sof-pci-dev.c +++ b/sound/soc/sof/sof-pci-dev.c @@ -40,6 +40,10 @@ static int sof_pci_debug; module_param_named(sof_pci_debug, sof_pci_debug, int, 0444); MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)"); +static int sof_pci_ipc_type = -1; +module_param_named(ipc_type, sof_pci_ipc_type, int, 0444); +MODULE_PARM_DESC(ipc_type, "SOF IPC type (0): SOF, (1) Intel CAVS"); + static const char *sof_dmi_override_tplg_name; static bool sof_dmi_use_community_key; @@ -206,6 +210,23 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) sof_pdata->ipc_type = desc->ipc_default; + if (sof_pci_ipc_type < 0) { + sof_pdata->ipc_type = desc->ipc_default; + } else { + dev_info(dev, "overriding default IPC %d to requested %d\n", + desc->ipc_default, sof_pci_ipc_type); + if (sof_pci_ipc_type >= SOF_IPC_TYPE_COUNT) { + dev_err(dev, "invalid request value %d\n", sof_pci_ipc_type); + return -EINVAL; + } + if (!(BIT(sof_pci_ipc_type) & desc->ipc_supported_mask)) { + dev_err(dev, "invalid request value %d, supported mask is %#x\n", + sof_pci_ipc_type, desc->ipc_supported_mask); + return -EINVAL; + } + sof_pdata->ipc_type = sof_pci_ipc_type; + } + if (fw_filename) { sof_pdata->fw_filename = fw_filename;