From d595713de7f867d9fc6ad7bef9e9776f9977067b Mon Sep 17 00:00:00 2001 From: "Jackson.lee" Date: Tue, 17 Dec 2024 13:51:24 +0900 Subject: [PATCH] media: chips-media: wave5: Fix a hang after seeking commit a2c75e964e51b096e9fe6adfa3eaed53594a668b upstream. While seeking, the driver calls the flush command. Before the flush command is sent to the VPU, the driver should handle the display buffer flags and should get all decoded information from the VPU if the VCORE is running. Fixes: 9707a6254a8a ("media: chips-media: wave5: Add the v4l2 layer") Cc: stable@vger.kernel.org Signed-off-by: Jackson.lee Signed-off-by: Nas Chung Reviewed-by: Nicolas Dufresne Signed-off-by: Sebastian Fricke Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- .../platform/chips-media/wave5/wave5-vpu-dec.c | 17 ++++++++++++++++- .../platform/chips-media/wave5/wave5-vpuapi.c | 10 ++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c index 0c5c9a8de91f..1ca14032f8b9 100644 --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c @@ -1446,6 +1446,16 @@ static int streamoff_output(struct vb2_queue *q) struct vb2_v4l2_buffer *buf; int ret; dma_addr_t new_rd_ptr; + struct dec_output_info dec_info; + unsigned int i; + + for (i = 0; i < v4l2_m2m_num_dst_bufs_ready(m2m_ctx); i++) { + ret = wave5_vpu_dec_set_disp_flag(inst, i); + if (ret) + dev_dbg(inst->dev->dev, + "%s: Setting display flag of buf index: %u, fail: %d\n", + __func__, i, ret); + } while ((buf = v4l2_m2m_src_buf_remove(m2m_ctx))) { dev_dbg(inst->dev->dev, "%s: (Multiplanar) buf type %4u | index %4u\n", @@ -1453,6 +1463,11 @@ static int streamoff_output(struct vb2_queue *q) v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR); } + while (wave5_vpu_dec_get_output_info(inst, &dec_info) == 0) { + if (dec_info.index_frame_display >= 0) + wave5_vpu_dec_set_disp_flag(inst, dec_info.index_frame_display); + } + ret = wave5_vpu_flush_instance(inst); if (ret) return ret; @@ -1535,7 +1550,7 @@ static void wave5_vpu_dec_stop_streaming(struct vb2_queue *q) break; if (wave5_vpu_dec_get_output_info(inst, &dec_output_info)) - dev_dbg(inst->dev->dev, "Getting decoding results from fw, fail\n"); + dev_dbg(inst->dev->dev, "there is no output info\n"); } v4l2_m2m_update_stop_streaming_state(m2m_ctx, q); diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c index 1a3efb638dde..65fdabcd9d29 100644 --- a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c +++ b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c @@ -73,6 +73,16 @@ int wave5_vpu_flush_instance(struct vpu_instance *inst) inst->type == VPU_INST_TYPE_DEC ? "DECODER" : "ENCODER", inst->id); mutex_unlock(&inst->dev->hw_lock); return -ETIMEDOUT; + } else if (ret == -EBUSY) { + struct dec_output_info dec_info; + + mutex_unlock(&inst->dev->hw_lock); + wave5_vpu_dec_get_output_info(inst, &dec_info); + ret = mutex_lock_interruptible(&inst->dev->hw_lock); + if (ret) + return ret; + if (dec_info.index_frame_display > 0) + wave5_vpu_dec_set_disp_flag(inst, dec_info.index_frame_display); } } while (ret != 0); mutex_unlock(&inst->dev->hw_lock);