From: Vikash Garodia quic_vgarodia@quicinc.com
[ Upstream commit 73664f107c0fafb59cd91e576b81c986adb74610 ]
During reconfig (DRC) event from firmware, it is not guaranteed that all the DPB(internal) buffers would be released by the firmware. Some buffers might be released gradually while processing frames from the new sequence. These buffers now stay idle in the dpblist. In subsequent call to queue the DPBs to firmware, these idle buffers should not be queued. The fix identifies those buffers and free them.
Signed-off-by: Vikash Garodia quic_vgarodia@quicinc.com Tested-by: Fritz Koenig frkoenig@chromium.org Signed-off-by: Stanimir Varbanov stanimir.varbanov@linaro.org Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/qcom/venus/helpers.c | 34 +++++++++++++++------ 1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c index 0bca95d01650..fa01edd54c03 100644 --- a/drivers/media/platform/qcom/venus/helpers.c +++ b/drivers/media/platform/qcom/venus/helpers.c @@ -90,12 +90,28 @@ bool venus_helper_check_codec(struct venus_inst *inst, u32 v4l2_pixfmt) } EXPORT_SYMBOL_GPL(venus_helper_check_codec);
+static void free_dpb_buf(struct venus_inst *inst, struct intbuf *buf) +{ + ida_free(&inst->dpb_ids, buf->dpb_out_tag); + + list_del_init(&buf->list); + dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da, + buf->attrs); + kfree(buf); +} + int venus_helper_queue_dpb_bufs(struct venus_inst *inst) { - struct intbuf *buf; + struct intbuf *buf, *next; + unsigned int dpb_size = 0; int ret = 0;
- list_for_each_entry(buf, &inst->dpbbufs, list) { + if (inst->dpb_buftype == HFI_BUFFER_OUTPUT) + dpb_size = inst->output_buf_size; + else if (inst->dpb_buftype == HFI_BUFFER_OUTPUT2) + dpb_size = inst->output2_buf_size; + + list_for_each_entry_safe(buf, next, &inst->dpbbufs, list) { struct hfi_frame_data fdata;
memset(&fdata, 0, sizeof(fdata)); @@ -106,6 +122,12 @@ int venus_helper_queue_dpb_bufs(struct venus_inst *inst) if (buf->owned_by == FIRMWARE) continue;
+ /* free buffer from previous sequence which was released later */ + if (dpb_size > buf->size) { + free_dpb_buf(inst, buf); + continue; + } + fdata.clnt_data = buf->dpb_out_tag;
ret = hfi_session_process_buf(inst, &fdata); @@ -127,13 +149,7 @@ int venus_helper_free_dpb_bufs(struct venus_inst *inst) list_for_each_entry_safe(buf, n, &inst->dpbbufs, list) { if (buf->owned_by == FIRMWARE) continue; - - ida_free(&inst->dpb_ids, buf->dpb_out_tag); - - list_del_init(&buf->list); - dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da, - buf->attrs); - kfree(buf); + free_dpb_buf(inst, buf); }
if (list_empty(&inst->dpbbufs))