static void
pccard_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
resource_list_delete(rl, type, rid);
}
int
pci_vf_release_mem_resource(device_t dev, device_t child, int rid,
struct resource *r)
{
struct pci_devinfo *dinfo;
struct resource_list_entry *rle;
int error;
dinfo = device_get_ivars(child);
if (rman_get_flags(r) & RF_ACTIVE) {
error = bus_deactivate_resource(child, SYS_RES_MEMORY, rid, r);
if (error != 0)
return (error);
}
rle = resource_list_find(&dinfo->resources, SYS_RES_MEMORY, rid);
if (rle != NULL) {
rle->res = NULL;
resource_list_delete(&dinfo->resources, SYS_RES_MEMORY,
rid);
}
return (rman_release_resource(r));
}
static void
nexus_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct nexus_device *ndev = DEVTONX(child);
struct resource_list *rl = &ndev->nx_resources;
resource_list_delete(rl, type, rid);
}
static void
canbus_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct canbus_device *cbdev =
(struct canbus_device *)device_get_ivars(child);
struct resource_list *rl = &cbdev->cbdev_resources;
resource_list_delete(rl, type, rid);
}
static void
nexus_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct nexus_device *ndev = DEVTONX(child);
struct resource_list *rl = &ndev->nx_resources;
dprintf("%s: entry\n", __func__);
resource_list_delete(rl, type, rid);
}
struct resource *
pci_vf_alloc_mem_resource(device_t dev, device_t child, int *rid,
rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
{
struct pci_devinfo *dinfo;
struct pcicfg_iov *iov;
struct pci_map *map;
struct resource *res;
struct resource_list_entry *rle;
rman_res_t bar_start, bar_end;
pci_addr_t bar_length;
int error;
dinfo = device_get_ivars(child);
iov = dinfo->cfg.iov;
map = pci_find_bar(child, *rid);
if (map == NULL)
return (NULL);
bar_length = 1 << map->pm_size;
bar_start = map->pm_value;
bar_end = bar_start + bar_length - 1;
/* Make sure that the resource fits the constraints. */
if (bar_start >= end || bar_end <= bar_start || count != 1)
return (NULL);
/* Clamp the resource to the constraints if necessary. */
if (bar_start < start)
bar_start = start;
if (bar_end > end)
bar_end = end;
bar_length = bar_end - bar_start + 1;
res = rman_reserve_resource(&iov->rman, bar_start, bar_end,
bar_length, flags, child);
if (res == NULL)
return (NULL);
rle = resource_list_add(&dinfo->resources, SYS_RES_MEMORY, *rid,
bar_start, bar_end, 1);
if (rle == NULL) {
rman_release_resource(res);
return (NULL);
}
rman_set_rid(res, *rid);
if (flags & RF_ACTIVE) {
error = bus_activate_resource(child, SYS_RES_MEMORY, *rid, res);
if (error != 0) {
resource_list_delete(&dinfo->resources, SYS_RES_MEMORY,
*rid);
rman_release_resource(res);
return (NULL);
}
}
rle->res = res;
return (res);
}
