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pci_setup_intr() will only enable MSI/MSI-X for direct children. Add methods

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to vga_pci.c to request on behalf of it's children.  This causes vgapci to show
up as the interrupt owner in vmstat -i, rather than the child device.

Approved by:	jhb(mentor)
This commit is contained in:
Robert Noland 2008-09-19 19:11:35 +00:00
parent bcffa9358d
commit 6be0323d97
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=183194
1 changed files with 18 additions and 2 deletions
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20
sys/dev/pci/vga_pci.c
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@ -110,6 +110,22 @@ vga_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
return (EINVAL);
}
static int
vga_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_filter_t *filter, driver_intr_t *intr, void *arg,
void **cookiep)
{
return (BUS_SETUP_INTR(device_get_parent(dev), dev, irq, flags,
filter, intr, arg, cookiep));
}
static int
vga_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
return (BUS_TEARDOWN_INTR(device_get_parent(dev), dev, irq, cookie));
}
static struct resource *
vga_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
@ -311,8 +327,8 @@ static device_method_t vga_pci_methods[] = {
/* Bus interface */
DEVMETHOD(bus_read_ivar, vga_pci_read_ivar),
DEVMETHOD(bus_write_ivar, vga_pci_write_ivar),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
DEVMETHOD(bus_setup_intr, vga_pci_setup_intr),
DEVMETHOD(bus_teardown_intr, vga_pci_teardown_intr),
DEVMETHOD(bus_alloc_resource, vga_pci_alloc_resource),
DEVMETHOD(bus_release_resource, vga_pci_release_resource),