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Move the PCI-specific logic of removing a cardbus device into a

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pci_delete_child() function called by the cardbus driver.  The new function
uses resource_list_unreserve() to release the BARs decoded by the device
being removed.

Reviewed by:	imp
Tested by:	brooks
This commit is contained in:
John Baldwin 2010-01-05 20:42:25 +00:00
parent 18c2d3f245
commit af827f9642
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=201609
3 changed files with 42 additions and 30 deletions
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31
sys/dev/cardbus/cardbus.c
View File

@ -80,8 +80,6 @@ static void cardbus_driver_added(device_t cbdev, driver_t *driver);
static int cardbus_probe(device_t cbdev);
static int cardbus_read_ivar(device_t cbdev, device_t child, int which,
uintptr_t *result);
static void cardbus_release_all_resources(device_t cbdev,
struct cardbus_devinfo *dinfo);
/************************************************************************/
/* Probe/Attach */
@ -226,16 +224,11 @@ cardbus_detach_card(device_t cbdev)
for (tmp = 0; tmp < numdevs; tmp++) {
struct cardbus_devinfo *dinfo = device_get_ivars(devlist[tmp]);
int status = device_get_state(devlist[tmp]);
if (dinfo->pci.cfg.dev != devlist[tmp])
device_printf(cbdev, "devinfo dev mismatch\n");
if (status == DS_ATTACHED || status == DS_BUSY)
device_detach(devlist[tmp]);
cardbus_release_all_resources(cbdev, dinfo);
cardbus_device_destroy(dinfo);
device_delete_child(cbdev, devlist[tmp]);
pci_freecfg((struct pci_devinfo *)dinfo);
pci_delete_child(cbdev, devlist[tmp]);
}
POWER_DISABLE_SOCKET(device_get_parent(cbdev), cbdev);
free(devlist, M_TEMP);
@ -283,28 +276,6 @@ cardbus_driver_added(device_t cbdev, driver_t *driver)
free(devlist, M_TEMP);
}
static void
cardbus_release_all_resources(device_t cbdev, struct cardbus_devinfo *dinfo)
{
struct resource_list_entry *rle;
device_t dev;
/* Turn off access to resources we're about to free */
dev = dinfo->pci.cfg.dev;
pci_write_config(dev, PCIR_COMMAND,
pci_read_config(dev, PCIR_COMMAND, 2) &
~(PCIM_CMD_MEMEN | PCIM_CMD_PORTEN), 2);
/* Free all allocated resources */
STAILQ_FOREACH(rle, &dinfo->pci.resources, link) {
if (rle->res) {
BUS_RELEASE_RESOURCE(device_get_parent(cbdev),
cbdev, rle->type, rle->rid, rle->res);
rle->res = NULL;
}
}
resource_list_free(&dinfo->pci.resources);
}
/************************************************************************/
/* Other Bus Methods */
/************************************************************************/

40
sys/dev/pci/pci.c
View File

@ -3796,6 +3796,46 @@ pci_deactivate_resource(device_t dev, device_t child, int type,
return (0);
}
void
pci_delete_child(device_t dev, device_t child)
{
struct resource_list_entry *rle;
struct resource_list *rl;
struct pci_devinfo *dinfo;
dinfo = device_get_ivars(child);
rl = &dinfo->resources;
if (device_is_attached(child))
device_detach(child);
/* Turn off access to resources we're about to free */
pci_write_config(child, PCIR_COMMAND, pci_read_config(child,
PCIR_COMMAND, 2) & ~(PCIM_CMD_MEMEN | PCIM_CMD_PORTEN), 2);
/* Free all allocated resources */
STAILQ_FOREACH(rle, rl, link) {
if (rle->res) {
if (rman_get_flags(rle->res) & RF_ACTIVE ||
resource_list_busy(rl, rle->type, rle->rid)) {
pci_printf(&dinfo->cfg,
"Resource still owned, oops. "
"(type=%d, rid=%d, addr=%lx)\n",
rle->type, rle->rid,
rman_get_start(rle->res));
bus_release_resource(child, rle->type, rle->rid,
rle->res);
}
resource_list_unreserve(rl, dev, child, rle->type,
rle->rid);
}
}
resource_list_free(rl);
device_delete_child(dev, child);
pci_freecfg(dinfo);
}
void
pci_delete_resource(device_t dev, device_t child, int type, int rid)
{

1
sys/dev/pci/pci_private.h
View File

@ -43,6 +43,7 @@ void pci_add_children(device_t dev, int domain, int busno,
void pci_add_child(device_t bus, struct pci_devinfo *dinfo);
void pci_add_resources(device_t bus, device_t dev, int force,
uint32_t prefetchmask);
void pci_delete_child(device_t dev, device_t child);
void pci_driver_added(device_t dev, driver_t *driver);
int pci_print_child(device_t dev, device_t child);
void pci_probe_nomatch(device_t dev, device_t child);