From a14be80a82c8fbb1a9ceeebd8a8cf7c2ac45c5e3 Mon Sep 17 00:00:00 2001 From: Cristian Ciocaltea Date: Fri, 7 Feb 2025 13:46:04 +0200 Subject: [PATCH] ASoC: SOF: amd: Handle IPC replies before FW_BOOT_COMPLETE [ Upstream commit ac84ca815adb4171a4276b1d44096b75f6a150b7 ] In some cases, e.g. during resuming from suspend, there is a possibility that some IPC reply messages get received by the host while the DSP firmware has not yet reached the complete boot state. Detect when this happens and do not attempt to process the unexpected replies from DSP. Instead, provide proper debugging support. Signed-off-by: Cristian Ciocaltea Link: https://patch.msgid.link/20250207-sof-vangogh-fixes-v1-3-67824c1e4c9a@collabora.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/sof/amd/acp-ipc.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/sound/soc/sof/amd/acp-ipc.c b/sound/soc/sof/amd/acp-ipc.c index b44b1b1adb6ed..cf3994a705f94 100644 --- a/sound/soc/sof/amd/acp-ipc.c +++ b/sound/soc/sof/amd/acp-ipc.c @@ -167,6 +167,7 @@ irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context) if (sdev->first_boot && sdev->fw_state != SOF_FW_BOOT_COMPLETE) { acp_mailbox_read(sdev, sdev->dsp_box.offset, &status, sizeof(status)); + if ((status & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) { snd_sof_dsp_panic(sdev, sdev->dsp_box.offset + sizeof(status), true); @@ -188,13 +189,21 @@ irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context) dsp_ack = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_ack_write); if (dsp_ack) { - spin_lock_irq(&sdev->ipc_lock); - /* handle immediate reply from DSP core */ - acp_dsp_ipc_get_reply(sdev); - snd_sof_ipc_reply(sdev, 0); - /* set the done bit */ - acp_dsp_ipc_dsp_done(sdev); - spin_unlock_irq(&sdev->ipc_lock); + if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) { + spin_lock_irq(&sdev->ipc_lock); + + /* handle immediate reply from DSP core */ + acp_dsp_ipc_get_reply(sdev); + snd_sof_ipc_reply(sdev, 0); + /* set the done bit */ + acp_dsp_ipc_dsp_done(sdev); + + spin_unlock_irq(&sdev->ipc_lock); + } else { + dev_dbg_ratelimited(sdev->dev, "IPC reply before FW_BOOT_COMPLETE: %#x\n", + dsp_ack); + } + ipc_irq = true; } -- 2.47.3