Attention is currently required from: Arthur Heymans, Christian Walter, Jincheng Li, Johnny Lin, Jonathan Zhang, Lean Sheng Tan, Patrick Rudolph, Tim Chu.
1 comment:
File src/soc/intel/xeon_sp/acpi.c:
Patch Set #6, Line 192: PCI_SECONDARY_BUS
there are no for SPR/GNR.
I checked the SPR log, the empty but enabled root port will also be assigned with secondary bus numbers by coreboot/OS.
```
[DEBUG] DOMAIN: 00000337 scanning...
[DEBUG] PCI: pci_scan_bus for segment group 00 bus 37
[SPEW ] PCI: 00:37:00.0 [8086/0000] ops
[DEBUG] PCI: 00:37:00.0 [8086/09a2] enabled
[DEBUG] PCI: 00:37:00.1 [8086/09a4] enabled
[DEBUG] PCI: 00:37:00.2 [8086/09a3] enabled
[DEBUG] PCI: 00:37:00.3 [8086/09a5] enabled
[SPEW ] PCI: 00:37:00.4 [8086/0000] ops
[DEBUG] PCI: 00:37:00.4 [8086/0b23] enabled
[DEBUG] PCI: 00:37:01.0 subordinate bus PCI Express
[DEBUG] PCI: 00:37:01.0 [8086/352a] enabled
[DEBUG] PCI: 00:37:01.0 scanning...
[SPEW ] do_pci_scan_bridge for PCI: 00:37:01.0
[DEBUG] PCI: pci_scan_bus for segment group 00 bus 38
[INFO ] PCI: 00:37:01.0: Setting Max_Payload_Size to 512 for devices under this root port
[DEBUG] scan_bus: bus PCI: 00:37:01.0 finished in 19 msecs
[DEBUG] scan_bus: bus DOMAIN: 00000337 finished in 74 msecs
```
```
ACPI: PCI Root Bridge [PC03] (domain 0000 [bus 37-47])
acpi PNP0A08:03: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
acpi PNP0A08:03: PCIe port services disabled; not requesting _OSC control
PCI host bridge to bus 0000:37
pci_bus 0000:37: root bus resource [io 0x7000-0x7fff window]
pci_bus 0000:37: root bus resource [mem 0xa9400000-0xb2ffffff window]
pci_bus 0000:37: root bus resource [mem 0x203000000000-0x203fffffffff window]
pci_bus 0000:37: root bus resource [bus 37-47]
pci 0000:37:00.0: [8086:09a2] type 00 class 0x088000
pci 0000:37:00.1: [8086:09a4] type 00 class 0x088000
pci 0000:37:00.2: [8086:09a3] type 00 class 0x088000
pci 0000:37:00.3: [8086:09a5] type 00 class 0x088000
pci 0000:37:00.4: [8086:0b23] type 00 class 0x080700
pci 0000:37:01.0: [8086:352a] type 01 class 0x060400
pci 0000:37:01.0: reg 0x10: [mem 0x203ffffe0000-0x203fffffffff 64bit]
pci 0000:37:01.0: enabling Extended Tags
pci 0000:37:01.0: PME# supported from D0 D3hot D3cold
pci 0000:37:01.0: PCI bridge to [bus 38]
```
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