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dbdma: skip transfer commands with reqCount=0.

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This commit is contained in:
Maxim Poliakovski 2024-04-07 20:28:10 +02:00
parent 524daa45a5
commit dcdfaabedf
1 changed files with 7 additions and 4 deletions
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11
devices/common/dbdma.cpp
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@ -81,11 +81,14 @@ uint8_t DMAChannel::interpret_cmd() {
LOG_F(ERROR, "%s: Key > 0 not implemented", this->get_name().c_str());
break;
}
res = mmu_map_dma_mem(cmd_struct.address, cmd_struct.req_count, false);
this->queue_data = res.host_va;
this->queue_len = cmd_struct.req_count;
this->res_count = 0;
this->cmd_in_progress = true;
if (this->queue_len) {
res = mmu_map_dma_mem(cmd_struct.address, cmd_struct.req_count, false);
this->queue_data = res.host_va;
this->res_count = 0;
this->cmd_in_progress = true;
} else
this->finish_cmd();
break;
case DBDMA_Cmd::STORE_QUAD:
if ((cmd_struct.cmd_key & 7) != 6)