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[Zion][Denali] Move to MSI for AHCI devices.

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This will allow us to properly do interrupts for XHCI devices in the
future.

Also move PCI device header parsing to a shared library.

Get rid of the old irq register format which supplied an irq number and
instead pass the appropriate irq number back out to the caller.
This commit is contained in:
Drew Galbraith 2025-05-05 23:13:59 -07:00
parent c645405ca8
commit f26fd73116
21 changed files with 371 additions and 124 deletions
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17
zion/interrupt/apic.cpp
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@ -136,23 +136,6 @@ Apic::Apic(const ApicConfiguration& config)
// FIXME: Get this offset from ACPI.
SetIoDoubleReg(0x14, 0x20 | APIC_MASK);
// Map Keyboard
SetIoDoubleReg(0x12, 0x22);
// For now set these based on the presets in the following spec.
// http://web.archive.org/web/20161130153145/http://download.intel.com/design/chipsets/datashts/29056601.pdf
// FIXME: However in the future we should likely use the MADT for legacy
// interrupts and AML for PCI etc.
// PCI Line 1-4
// FIXME: These should be level triggered according to spec I believe
// but because we handle the interrupt outside of the kernel it is tricky
// to wait to send the end of interrupt message.
// Because of this leave them as edge triggered and send EOI immediately.
SetIoDoubleReg(0x30, 0x30);
SetIoDoubleReg(0x32, 0x31);
SetIoDoubleReg(0x34, 0x32);
SetIoDoubleReg(0x36, 0x33);
DumpInfo();
}