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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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72
util/sconfig/main.c
View File

@ -226,23 +226,35 @@ struct device *new_device(struct device *parent, struct device *busdev, const in
lastdev->nextdev = new_d;
lastdev = new_d;
if (bus == PCI) {
switch(bus) {
case PCI:
new_d->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
}
if (bus == PNP) {
break;
case PNP:
new_d->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
}
if (bus == I2C) {
break;
case I2C:
new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x }}";
}
if (bus == APIC) {
break;
case APIC:
new_d->path = ".type=DEVICE_PATH_APIC,{.apic={ .apic_id = 0x%x }}";
}
if (bus == APIC_CLUSTER) {
break;
case APIC_CLUSTER:
new_d->path = ".type=DEVICE_PATH_APIC_CLUSTER,{.apic_cluster={ .cluster = 0x%x }}";
}
if (bus == PCI_DOMAIN) {
break;
case PCI_DOMAIN:
new_d->path = ".type=DEVICE_PATH_PCI_DOMAIN,{.pci_domain={ .domain = 0x%x }}";
break;
case IOAPIC:
new_d->path = ".type=DEVICE_PATH_IOAPIC,{.ioapic={ .ioapic_id = 0x%x }}";
break;
}
return new_d;
}
@ -322,6 +334,32 @@ void add_pci_subsystem_ids(struct device *dev, int vendor, int device, int inher
dev->inherit_subsystem = inherit;
}
void add_ioapic_info(struct device *dev, int apicid, const char *_srcpin, int irqpin)
{
int srcpin;
if (!_srcpin || strlen(_srcpin) < 4 ||strncasecmp(_srcpin, "INT", 3) ||
_srcpin[3] < 'A' || _srcpin[3] > 'D') {
printf("ERROR: malformed ioapic_irq args: %s\n", _srcpin);
exit(1);
}
srcpin = _srcpin[3] - 'A';
if (dev->bustype != PCI && dev->bustype != PCI_DOMAIN) {
printf("ERROR: ioapic config only allowed for PCI devices\n");
exit(1);
}
if (srcpin > 3) {
printf("ERROR: srcpin '%d' invalid\n");
exit(1);
}
dev->pci_irq_info[srcpin].ioapic_irq_pin = irqpin;
dev->pci_irq_info[srcpin].ioapic_dst_id = apicid;
}
static void pass0(FILE *fil, struct device *ptr) {
if (ptr->type == device && ptr->id == 0)
fprintf(fil, "struct bus %s_links[];\n", ptr->name);
@ -334,7 +372,9 @@ static void pass0(FILE *fil, struct device *ptr) {
}
}
static void pass1(FILE *fil, struct device *ptr) {
static void pass1(FILE *fil, struct device *ptr)
{
int pin;
if (!ptr->used && (ptr->type == device)) {
if (ptr->id != 0)
fprintf(fil, "static ");
@ -349,6 +389,14 @@ static void pass1(FILE *fil, struct device *ptr) {
if (ptr->subsystem_vendor > 0)
fprintf(fil, "\t.subsystem_vendor = 0x%04x,\n", ptr->subsystem_vendor);
for(pin = 0; pin < 4; pin++) {
if (ptr->pci_irq_info[pin].ioapic_irq_pin > 0)
fprintf(fil, "\t.pci_irq_info[%d].ioapic_irq_pin = %d,\n", pin, ptr->pci_irq_info[pin].ioapic_irq_pin);
if (ptr->pci_irq_info[pin].ioapic_dst_id > 0)
fprintf(fil, "\t.pci_irq_info[%d].ioapic_dst_id = %d,\n", pin, ptr->pci_irq_info[pin].ioapic_dst_id);
}
if (ptr->subsystem_device > 0)
fprintf(fil, "\t.subsystem_device = 0x%04x,\n", ptr->subsystem_device);