ASoC: SOF: amd: clear panic mask status when panic occurs

Due to scratch memory persistence, Once the DSP panic is reported, need to
clear the panic mask after handling DSP panic. Otherwise, It results in DSP
panic on next reboot.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230823073340.2829821-6-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/amd/acp-ipc.c b/sound/soc/sof/amd/acp-ipc.c
index 81a2c096a1858beefba3d2d60cd95b3385160b6b..fcb54f545fea3da973b83798f9c885b591c8e485 100644 (file)
--- a/sound/soc/sof/amd/acp-ipc.c
+++ b/sound/soc/sof/amd/acp-ipc.c
@@ -170,6 +170,8 @@ irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context)
                if ((status & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
                        snd_sof_dsp_panic(sdev, sdev->dsp_box.offset + sizeof(status),
                                          true);
+                       status = 0;
+                       acp_mailbox_write(sdev, sdev->dsp_box.offset, &status, sizeof(status));
                        return IRQ_HANDLED;
                }
                snd_sof_ipc_msgs_rx(sdev);
@@ -199,6 +201,8 @@ irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context)
        acp_mailbox_read(sdev, sdev->debug_box.offset, &status, sizeof(u32));
        if ((status & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
                snd_sof_dsp_panic(sdev, sdev->dsp_oops_offset, true);
+               status = 0;
+               acp_mailbox_write(sdev, sdev->debug_box.offset, &status, sizeof(status));
                return IRQ_HANDLED;
        }