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kernel: Detect some other cases of non-DMA support
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apio 2023-08-08 18:23:13 +02:00
parent 16590dbb02
commit ed8b210639
Signed by: apio
GPG Key ID: B8A7D06E42258954
1 changed files with 12 additions and 0 deletions
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12
kernel/src/arch/x86_64/disk/ATA.cpp
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@ -431,6 +431,18 @@ namespace ATA
m_uses_dma = false;
}
if (m_drive_index == 0 && !(status & BMS_MasterInit))
{
kwarnln("ata: Drive %d does not have DMA support", m_drive_index);
m_uses_dma = false;
}
if (m_drive_index == 1 && !(status & BMS_SlaveInit))
{
kwarnln("ata: Drive %d does not have DMA support", m_drive_index);
m_uses_dma = false;
}
auto frame = MemoryManager::alloc_frame();
if (frame.has_error() || frame.value() > 0xffffffff)
{