1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 13:47:45 +00:00

Kernel/Storage: Don't try to enumerate PCI adapters if PCI is disabled

If there's no PCI bus, then it's safe to assume that we run on a x86
machine that has an ISA IDE controller in the system. In such case, we
just instantiate a ISAIDEController object that assumes fixed locations
of IDE IO ports.
This commit is contained in:
Liav A 2022-01-21 16:18:31 +02:00 committed by Andreas Kling
parent fafa339264
commit 30eeba1981
11 changed files with 283 additions and 142 deletions

View file

@ -39,7 +39,6 @@ UNMAP_AFTER_INIT void BMIDEChannel::initialize()
{
VERIFY(m_io_group.bus_master_base().has_value());
// Let's try to set up DMA transfers.
PCI::enable_bus_mastering(m_parent_controller->pci_address());
{
auto region_or_error = MM.allocate_dma_buffer_page("IDE PRDT", Memory::Region::Access::ReadWrite, m_prdt_page);
if (region_or_error.is_error())