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When the driver allocates memory or I/O ports, enable that bit in the

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command config register.  At the present, this represents a nop
because these bits should have been set earlier in the process.  In
the future, we'll only set these bits when the driver requests the
resource, not when the bus code detects the resource.

Reviewed by: mdodd
This commit is contained in:
imp 2003-04-15 19:38:18 +00:00
parent ee95862054
commit bcfb4701c6
1 changed files with 26 additions and 14 deletions
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40
sys/dev/pci/pci.c
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@ -1301,21 +1301,33 @@ pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
* XXX add support here for SYS_RES_IOPORT and SYS_RES_MEMORY
*/
if (device_get_parent(child) == dev) {
/*
* If the child device doesn't have an interrupt routed
* and is deserving of an interrupt, try to assign it one.
*/
if ((type == SYS_RES_IRQ) &&
!PCI_INTERRUPT_VALID(cfg->intline) &&
(cfg->intpin != 0)) {
cfg->intline = PCIB_ROUTE_INTERRUPT(
device_get_parent(dev), child, cfg->intpin);
if (PCI_INTERRUPT_VALID(cfg->intline)) {
pci_write_config(child, PCIR_INTLINE,
cfg->intline, 1);
resource_list_add(rl, SYS_RES_IRQ, 0,
cfg->intline, cfg->intline, 1);
switch (type) {
case SYS_RES_IRQ:
/*
* If the child device doesn't have an
* interrupt routed and is deserving of an
* interrupt, try to assign it one.
*/
if (!PCI_INTERRUPT_VALID(cfg->intline) &&
(cfg->intpin != 0)) {
cfg->intline = PCIB_ROUTE_INTERRUPT(
device_get_parent(dev), child, cfg->intpin);
if (PCI_INTERRUPT_VALID(cfg->intline)) {
pci_write_config(child, PCIR_INTLINE,
cfg->intline, 1);
resource_list_add(rl, SYS_RES_IRQ, 0,
cfg->intline, cfg->intline, 1);
}
}
break;
case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
/*
* Enable the I/O mode. We should also be allocating
* resources too. XXX
*/
PCI_ENABLE_IO(dev, child, type);
break;
}
}