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MPTAPLE: generate from devicetree.cb

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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>
This commit is contained in:
Sven Schnelle
2012-06-21 22:19:48 +02:00
committed by Patrick Georgi
parent 6591470ae0
commit 0fa50a1990
11 changed files with 631 additions and 379 deletions
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5
util/sconfig/sconfig.h
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@ -43,6 +43,10 @@ struct reg {
struct reg *next;
};
struct pci_irq_info {
int ioapic_irq_pin;
int ioapic_dst_id;
};
struct device;
struct device {
int id;
@ -62,6 +66,7 @@ struct device {
int path_a;
int path_b;
int bustype;
struct pci_irq_info pci_irq_info[4];
enum devtype type;
struct device *parent;
struct device *bus;