Add implementation of low level, platform dependent IPC4 message handling and set the DSP ops for IPC4 for APL, CNL and TGL platforms.
Co-developed-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- sound/soc/sof/intel/apl.c | 17 ++++-- sound/soc/sof/intel/cnl.c | 97 +++++++++++++++++++++++++++++++++-- sound/soc/sof/intel/hda-ipc.c | 82 +++++++++++++++++++++++++++++ sound/soc/sof/intel/hda.h | 6 +++ sound/soc/sof/intel/tgl.c | 18 +++++-- 5 files changed, 208 insertions(+), 12 deletions(-)
diff --git a/sound/soc/sof/intel/apl.c b/sound/soc/sof/intel/apl.c index b7839fd04dfb..4c67110a073e 100644 --- a/sound/soc/sof/intel/apl.c +++ b/sound/soc/sof/intel/apl.c @@ -37,11 +37,20 @@ int sof_apl_ops_init(struct snd_sof_dev *sdev) /* probe/remove/shutdown */ sof_apl_ops.shutdown = hda_dsp_shutdown;
- /* doorbell */ - sof_apl_ops.irq_thread = hda_dsp_ipc_irq_thread; + if (sdev->pdata->ipc_type == SOF_IPC) { + /* doorbell */ + sof_apl_ops.irq_thread = hda_dsp_ipc_irq_thread;
- /* ipc */ - sof_apl_ops.send_msg = hda_dsp_ipc_send_msg; + /* ipc */ + sof_apl_ops.send_msg = hda_dsp_ipc_send_msg; + } + + if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { + sof_apl_ops.irq_thread = hda_dsp_ipc4_irq_thread; + + /* ipc */ + sof_apl_ops.send_msg = hda_dsp_ipc4_send_msg; + }
/* set DAI driver ops */ hda_set_dai_drv_ops(sdev, &sof_apl_ops); diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c index 98c4e4f61e7c..7a22d7e4a46c 100644 --- a/sound/soc/sof/intel/cnl.c +++ b/sound/soc/sof/intel/cnl.c @@ -15,6 +15,7 @@ * Hardware interface for audio DSP on Cannonlake. */
+#include <sound/sof/ipc4/header.h> #include "../ops.h" #include "hda.h" #include "hda-ipc.h" @@ -29,6 +30,68 @@ static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = { static void cnl_ipc_host_done(struct snd_sof_dev *sdev); static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev);
+irqreturn_t cnl_ipc4_irq_thread(int irq, void *context) +{ + struct sof_ipc4_msg notification_data = {{ 0 }}; + struct snd_sof_dev *sdev = context; + bool ipc_irq = false; + u32 hipcida, hipctdr; + + hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); + if (hipcida & CNL_DSP_REG_HIPCIDA_DONE) { + /* DSP received the message */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, + CNL_DSP_REG_HIPCCTL, + CNL_DSP_REG_HIPCCTL_DONE, 0); + cnl_ipc_dsp_done(sdev); + + ipc_irq = true; + } + + hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR); + if (hipctdr & CNL_DSP_REG_HIPCTDR_BUSY) { + /* Message from DSP (reply or notification) */ + u32 hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + CNL_DSP_REG_HIPCTDD); + u32 primary = hipctdr & CNL_DSP_REG_HIPCTDR_MSG_MASK; + u32 extension = hipctdd & CNL_DSP_REG_HIPCTDD_MSG_MASK; + + if (primary & SOF_IPC4_MSG_DIR_MASK) { + /* Reply received */ + struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data; + + data->primary = primary; + data->extension = extension; + + spin_lock_irq(&sdev->ipc_lock); + + snd_sof_ipc_get_reply(sdev); + snd_sof_ipc_reply(sdev, data->primary); + + spin_unlock_irq(&sdev->ipc_lock); + } else { + /* Notification received */ + notification_data.primary = primary; + notification_data.extension = extension; + + sdev->ipc->msg.rx_data = ¬ification_data; + snd_sof_ipc_msgs_rx(sdev); + sdev->ipc->msg.rx_data = NULL; + } + + /* Let DSP know that we have finished processing the message */ + cnl_ipc_host_done(sdev); + + ipc_irq = true; + } + + if (!ipc_irq) + /* This interrupt is not shared so no need to return IRQ_NONE. */ + dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n"); + + return IRQ_HANDLED; +} + irqreturn_t cnl_ipc_irq_thread(int irq, void *context) { struct snd_sof_dev *sdev = context; @@ -176,6 +239,22 @@ static bool cnl_compact_ipc_compress(struct snd_sof_ipc_msg *msg, return false; }
+int cnl_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) +{ + struct sof_ipc4_msg *msg_data = msg->msg_data; + + /* send the message via mailbox */ + if (msg_data->data_size) + sof_mailbox_write(sdev, sdev->host_box.offset, msg_data->data_ptr, + msg_data->data_size); + + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, msg_data->extension); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, + msg_data->primary | CNL_DSP_REG_HIPCIDR_BUSY); + + return 0; +} + int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) { struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; @@ -255,11 +334,21 @@ int sof_cnl_ops_init(struct snd_sof_dev *sdev) /* probe/remove/shutdown */ sof_cnl_ops.shutdown = hda_dsp_shutdown;
- /* doorbell */ - sof_cnl_ops.irq_thread = cnl_ipc_irq_thread; - /* ipc */ - sof_cnl_ops.send_msg = cnl_ipc_send_msg; + if (sdev->pdata->ipc_type == SOF_IPC) { + /* doorbell */ + sof_cnl_ops.irq_thread = cnl_ipc_irq_thread; + + /* ipc */ + sof_cnl_ops.send_msg = cnl_ipc_send_msg; + } + + if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { + sof_cnl_ops.irq_thread = cnl_ipc4_irq_thread; + + /* ipc */ + sof_cnl_ops.send_msg = cnl_ipc4_send_msg; + }
/* set DAI driver ops */ hda_set_dai_drv_ops(sdev, &sof_cnl_ops); diff --git a/sound/soc/sof/intel/hda-ipc.c b/sound/soc/sof/intel/hda-ipc.c index 0395638c43ae..f08011249955 100644 --- a/sound/soc/sof/intel/hda-ipc.c +++ b/sound/soc/sof/intel/hda-ipc.c @@ -15,6 +15,7 @@ * Hardware interface for generic Intel audio DSP HDA IP */
+#include <sound/sof/ipc4/header.h> #include "../ops.h" #include "hda.h"
@@ -65,6 +66,22 @@ int hda_dsp_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) return 0; }
+int hda_dsp_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) +{ + struct sof_ipc4_msg *msg_data = msg->msg_data; + + /* send the message via mailbox */ + if (msg_data->data_size) + sof_mailbox_write(sdev, sdev->host_box.offset, msg_data->data_ptr, + msg_data->data_size); + + snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE, msg_data->extension); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI, + msg_data->primary | HDA_DSP_REG_HIPCI_BUSY); + + return 0; +} + void hda_dsp_ipc_get_reply(struct snd_sof_dev *sdev) { struct snd_sof_ipc_msg *msg = sdev->msg; @@ -100,6 +117,71 @@ void hda_dsp_ipc_get_reply(struct snd_sof_dev *sdev) } }
+irqreturn_t hda_dsp_ipc4_irq_thread(int irq, void *context) +{ + struct sof_ipc4_msg notification_data = {{ 0 }}; + struct snd_sof_dev *sdev = context; + bool ipc_irq = false; + u32 hipcie, hipct; + + hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE); + if (hipcie & HDA_DSP_REG_HIPCIE_DONE) { + /* DSP received the message */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL, + HDA_DSP_REG_HIPCCTL_DONE, 0); + hda_dsp_ipc_dsp_done(sdev); + + ipc_irq = true; + } + + hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT); + if (hipct & HDA_DSP_REG_HIPCT_BUSY) { + /* Message from DSP (reply or notification) */ + u32 hipcte = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_DSP_REG_HIPCTE); + u32 primary = hipct & HDA_DSP_REG_HIPCT_MSG_MASK; + u32 extension = hipcte & HDA_DSP_REG_HIPCTE_MSG_MASK; + + /* mask BUSY interrupt */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL, + HDA_DSP_REG_HIPCCTL_BUSY, 0); + + if (primary & SOF_IPC4_MSG_DIR_MASK) { + /* Reply received */ + struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data; + + data->primary = primary; + data->extension = extension; + + spin_lock_irq(&sdev->ipc_lock); + + snd_sof_ipc_get_reply(sdev); + snd_sof_ipc_reply(sdev, data->primary); + + spin_unlock_irq(&sdev->ipc_lock); + } else { + /* Notification received */ + + notification_data.primary = primary; + notification_data.extension = extension; + sdev->ipc->msg.rx_data = ¬ification_data; + snd_sof_ipc_msgs_rx(sdev); + sdev->ipc->msg.rx_data = NULL; + } + + /* Let DSP know that we have finished processing the message */ + hda_dsp_ipc_host_done(sdev); + + ipc_irq = true; + } + + if (!ipc_irq) + /* This interrupt is not shared so no need to return IRQ_NONE. */ + dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n"); + + return IRQ_HANDLED; +} + /* IPC handler thread */ irqreturn_t hda_dsp_ipc_irq_thread(int irq, void *context) { diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index e52cade75617..535791c7d187 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -764,4 +764,10 @@ extern int sof_hda_position_quirk;
void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops);
+/* IPC4 */ +irqreturn_t cnl_ipc4_irq_thread(int irq, void *context); +int cnl_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg); +irqreturn_t hda_dsp_ipc4_irq_thread(int irq, void *context); +int hda_dsp_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg); + #endif diff --git a/sound/soc/sof/intel/tgl.c b/sound/soc/sof/intel/tgl.c index ed76f736afb4..c93526591a91 100644 --- a/sound/soc/sof/intel/tgl.c +++ b/sound/soc/sof/intel/tgl.c @@ -70,11 +70,21 @@ int sof_tgl_ops_init(struct snd_sof_dev *sdev) /* probe/remove/shutdown */ sof_tgl_ops.shutdown = hda_dsp_shutdown;
- /* doorbell */ - sof_tgl_ops.irq_thread = cnl_ipc_irq_thread; + if (sdev->pdata->ipc_type == SOF_IPC) { + /* doorbell */ + sof_tgl_ops.irq_thread = cnl_ipc_irq_thread;
- /* ipc */ - sof_tgl_ops.send_msg = cnl_ipc_send_msg; + /* ipc */ + sof_tgl_ops.send_msg = cnl_ipc_send_msg; + } + + if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { + /* doorbell */ + sof_tgl_ops.irq_thread = cnl_ipc4_irq_thread; + + /* ipc */ + sof_tgl_ops.send_msg = cnl_ipc4_send_msg; + }
/* set DAI driver ops */ hda_set_dai_drv_ops(sdev, &sof_tgl_ops);