| Message ID | 20240525230810.24623-5-jason-jh.lin@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add CMDQ secure driver for SVP | expand |
Il 26/05/24 01:08, Jason-JH.Lin ha scritto: > 1. Add a loop flag for CMDQ packet struct. > CMDQ helper will use a loop flag to mark CMDQ packet as lopping command > and make current command buffer jumps to the beginning when GCE executes > to the end of command buffer. > > 2. Add a looping task handle flow in irq handler. > GCE irq occurs when GCE executes to the end of command(EOC) instruction. > If the CMDQ packet is a loopping command, GCE irq handler can not > delete the CMDQ task and disable the GCE thread. > > Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 4aa394e91109..618023011d31 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -267,6 +267,17 @@ static void cmdq_thread_irq_handler(struct cmdq *cmdq, curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << cmdq->pdata->shift; + task = list_first_entry_or_null(&thread->task_busy_list, + struct cmdq_task, list_entry); + if (task && task->pkt->loop) { + struct cmdq_cb_data data; + + data.sta = err; + data.pkt = task->pkt; + mbox_chan_received_data(task->thread->chan, &data); + return; + } + list_for_each_entry_safe(task, tmp, &thread->task_busy_list, list_entry) { task_end_pa = task->pa_base + task->pkt->cmd_buf_size; diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index a8f0070c7aa9..f78a08e7c6ed 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -76,6 +76,7 @@ struct cmdq_pkt { size_t cmd_buf_size; /* command occupied size */ size_t buf_size; /* real buffer size */ void *cl; + bool loop; }; u8 cmdq_get_shift_pa(struct mbox_chan *chan);