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authorZheng Bao <fishbaozi@gmail.com>2015-11-09 20:22:36 +0800
committerZheng Bao <zheng.bao@amd.com>2015-11-12 09:26:08 +0100
commit861f920cdfa1f8a322ecd2a56da8c8a9fdfd1155 (patch)
treec0b5590d370c1ee2ff4003798e20e72b00647beb /src/northbridge
parent266609968b94c9b739dedcb6861ea1b50f34be85 (diff)
downloadcoreboot-861f920cdfa1f8a322ecd2a56da8c8a9fdfd1155.tar.xz
AMD/Mullins: Fix the interrupt routing
The plugged devices on PCIe should use IOAPIC2 instead of standard IOAPIC1. The entries in IOAPIC2 count from the end of IOAPIC1. The unchanged code worked because the OS uses MSI instead APIC. To test that, boot linux with parameter pci=nomsi and see if the devices like NIC work well as they do without the booting parameter. run 'cat /proc/interrupts' to see if devices actually use no-msi. Change-Id: I5eab28956b7a3fbc7c10447e99d6c11dbe6a1d14 Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/12363 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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