0fa50a1990
This patch adds support for autogenerating the MPTABLE from devicetree.cb. This is done by a write_smp_table() declared weak in mpspec.c. If the mainboard doesn't provide it's own function, this generic implementation is called. Syntax in devicetree.cb: ioapic_irq <APICID> <INTA|INTB|INTC|INTD> <INTPIN> The ioapic_irq directive can be used in pci and pci_domain devices. If there's no directive, the autogen code traverses the tree back to the pci_domain and stops at the first device which such a directive, and use that information to generate the entry according to PCI IRQ routing rules. Change-Id: I4df5b198e8430f939d477c14c798414e398a2027 Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/1138 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
89 lines
1.3 KiB
C
89 lines
1.3 KiB
C
#ifndef DEVICE_PATH_H
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#define DEVICE_PATH_H
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enum device_path_type {
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DEVICE_PATH_NONE = 0,
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DEVICE_PATH_ROOT,
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DEVICE_PATH_PCI,
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DEVICE_PATH_PNP,
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DEVICE_PATH_I2C,
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DEVICE_PATH_APIC,
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DEVICE_PATH_PCI_DOMAIN,
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DEVICE_PATH_APIC_CLUSTER,
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DEVICE_PATH_CPU,
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DEVICE_PATH_CPU_BUS,
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DEVICE_PATH_IOAPIC,
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};
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struct pci_domain_path
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{
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unsigned domain;
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};
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struct pci_path
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{
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unsigned devfn;
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};
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struct pnp_path
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{
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unsigned port;
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unsigned device;
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};
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struct i2c_path
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{
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unsigned device;
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};
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struct apic_path
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{
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unsigned apic_id;
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unsigned node_id;
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unsigned core_id;
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unsigned index;
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};
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struct ioapic_path
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{
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unsigned ioapic_id;
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};
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struct apic_cluster_path
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{
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unsigned cluster;
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};
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struct cpu_path
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{
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unsigned id;
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};
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struct cpu_bus_path
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{
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unsigned id;
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};
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struct device_path {
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enum device_path_type type;
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union {
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struct pci_path pci;
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struct pnp_path pnp;
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struct i2c_path i2c;
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struct apic_path apic;
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struct ioapic_path ioapic;
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struct pci_domain_path pci_domain;
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struct apic_cluster_path apic_cluster;
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struct cpu_path cpu;
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struct cpu_bus_path cpu_bus;
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};
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};
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#define DEVICE_PATH_MAX 30
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#define BUS_PATH_MAX (DEVICE_PATH_MAX+10)
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extern int path_eq(struct device_path *path1, struct device_path *path2);
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#endif /* DEVICE_PATH_H */
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