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Kernel: Add MSI support to AHCI

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Add MSI support to AHCI. Prefer MSI interrupts over pin-based
interrupts.
This commit is contained in:
Pankaj Raghav 2023-05-08 21:36:47 +02:00 • committed by Jelle Raaijmakers
parent 8f62e62cfe
commit 6c7ee5344c
3 changed files with 6 additions and 5 deletions
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5
Kernel/Storage/ATA/AHCI/Controller.cpp
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@ -167,12 +167,13 @@ UNMAP_AFTER_INIT ErrorOr<void> AHCIController::initialize_hba(PCI::DeviceIdentif
u32 version = hba().control_regs.version;
hba().control_regs.ghc = 0x80000000; // Ensure that HBA knows we are AHCI aware.
PCI::enable_interrupt_line(device_identifier());
PCI::enable_bus_mastering(device_identifier());
TRY(reserve_irqs(1, true));
auto irq = MUST(allocate_irq(0));
enable_global_interrupts();
auto implemented_ports = AHCI::MaskedBitField((u32 volatile&)(hba().control_regs.pi));
m_irq_handler = AHCIInterruptHandler::create(*this, pci_device_identifier.interrupt_line().value(), implemented_ports).release_value_but_fixme_should_propagate_errors();
m_irq_handler = AHCIInterruptHandler::create(*this, irq, implemented_ports).release_value_but_fixme_should_propagate_errors();
TRY(reset());
dbgln_if(AHCI_DEBUG, "{}: AHCI Controller Version = {:#08x}", device_identifier().address(), version);