static int
thunder_pem_adjust_resource(device_t dev, device_t child, int type,
struct resource *res, rman_res_t start, rman_res_t end)
{
struct thunder_pem_softc *sc;
struct rman *rm;
sc = device_get_softc(dev);
#if defined(NEW_PCIB) && defined(PCI_RES_BUS)
if (type == PCI_RES_BUS)
return (pci_domain_adjust_bus(sc->id, child, res, start, end));
#endif
rm = thunder_pem_rman(sc, type);
if (rm == NULL)
return (bus_generic_adjust_resource(dev, child, type, res,
start, end));
if (!rman_is_region_manager(res, rm))
/*
* This means a child device has a memory or I/O
* resource not from you which shouldn't happen.
*/
return (EINVAL);
return (rman_adjust_resource(res, start, end));
}
static struct resource *
thunder_pem_alloc_resource(device_t dev, device_t child, int type, int *rid,
rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
{
struct thunder_pem_softc *sc = device_get_softc(dev);
struct rman *rm = NULL;
struct resource *res;
device_t parent_dev;
rm = thunder_pem_rman(sc, type);
if (rm == NULL) {
/* Find parent device. On ThunderX we know an exact path. */
parent_dev = device_get_parent(device_get_parent(dev));
return (BUS_ALLOC_RESOURCE(parent_dev, dev, type, rid, start,
end, count, flags));
}
if (!RMAN_IS_DEFAULT_RANGE(start, end)) {
/*
* We might get PHYS addresses here inherited from EFI.
* Convert to PCI if necessary.
*/
if (range_addr_is_phys(sc->ranges, start, count)) {
start = range_addr_phys_to_pci(sc->ranges, start);
end = start + count - 1;
}
}
if (bootverbose) {
device_printf(dev,
"thunder_pem_alloc_resource: start=%#lx, end=%#lx, count=%#lx\n",
start, end, count);
}
res = rman_reserve_resource(rm, start, end, count, flags, child);
if (res == NULL)
goto fail;
rman_set_rid(res, *rid);
if (flags & RF_ACTIVE)
if (bus_activate_resource(child, type, *rid, res)) {
rman_release_resource(res);
goto fail;
}
return (res);
fail:
if (bootverbose) {
device_printf(dev, "%s FAIL: type=%d, rid=%d, "
"start=%016lx, end=%016lx, count=%016lx, flags=%x\n",
__func__, type, *rid, start, end, count, flags);
}
return (NULL);
}
static int
thunder_pem_adjust_resource(device_t dev, device_t child, int type,
struct resource *res, rman_res_t start, rman_res_t end)
{
struct thunder_pem_softc *sc;
struct rman *rm;
sc = device_get_softc(dev);
rm = thunder_pem_rman(sc, type);
if (rm == NULL)
return (bus_generic_adjust_resource(dev, child, type, res,
start, end));
if (!rman_is_region_manager(res, rm))
/*
* This means a child device has a memory or I/O
* resource not from you which shouldn't happen.
*/
return (EINVAL);
return (rman_adjust_resource(res, start, end));
}
static int
thunder_pem_attach(device_t dev)
{
devclass_t pci_class;
device_t parent;
struct thunder_pem_softc *sc;
int error;
int rid;
int tuple;
uint64_t base, size;
struct rman *rman;
sc = device_get_softc(dev);
sc->dev = dev;
/* Allocate memory for resource */
pci_class = devclass_find("pci");
parent = device_get_parent(dev);
if (device_get_devclass(parent) == pci_class)
rid = PCIR_BAR(0);
else
rid = RID_PEM_SPACE;
sc->reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE);
if (sc->reg == NULL) {
device_printf(dev, "Failed to allocate resource\n");
return (ENXIO);
}
sc->reg_bst = rman_get_bustag(sc->reg);
sc->reg_bsh = rman_get_bushandle(sc->reg);
/* Map SLI, do it only once */
if (!sli0_s2m_regx_base) {
bus_space_map(sc->reg_bst, SLIX_S2M_REGX_ACC,
SLIX_S2M_REGX_ACC_SIZE, 0, &sli0_s2m_regx_base);
}
if (!sli1_s2m_regx_base) {
bus_space_map(sc->reg_bst, SLIX_S2M_REGX_ACC +
SLIX_S2M_REGX_ACC_SPACING, SLIX_S2M_REGX_ACC_SIZE, 0,
&sli1_s2m_regx_base);
}
if ((sli0_s2m_regx_base == 0) || (sli1_s2m_regx_base == 0)) {
device_printf(dev,
"bus_space_map failed to map slix_s2m_regx_base\n");
goto fail;
}
/* Identify PEM */
if (thunder_pem_identify(dev) != 0)
goto fail;
/* Initialize rman and allocate regions */
sc->mem_rman.rm_type = RMAN_ARRAY;
sc->mem_rman.rm_descr = "PEM PCIe Memory";
error = rman_init(&sc->mem_rman);
if (error != 0) {
device_printf(dev, "memory rman_init() failed. error = %d\n",
error);
goto fail;
}
sc->io_rman.rm_type = RMAN_ARRAY;
sc->io_rman.rm_descr = "PEM PCIe IO";
error = rman_init(&sc->io_rman);
if (error != 0) {
device_printf(dev, "IO rman_init() failed. error = %d\n",
error);
goto fail_mem;
}
/*
* We ignore the values that may have been provided in FDT
* and configure ranges according to the below formula
* for all types of devices. This is because some DTBs provided
* by EFI do not have proper ranges property or don't have them
* at all.
*/
/* Fill memory window */
sc->ranges[0].pci_base = PCI_MEMORY_BASE;
sc->ranges[0].size = PCI_MEMORY_SIZE;
sc->ranges[0].phys_base = sc->sli_window_base + SLI_PCI_OFFSET +
sc->ranges[0].pci_base;
sc->ranges[0].flags = SYS_RES_MEMORY;
/* Fill IO window */
sc->ranges[1].pci_base = PCI_IO_BASE;
sc->ranges[1].size = PCI_IO_SIZE;
sc->ranges[1].phys_base = sc->sli_window_base + SLI_PCI_OFFSET +
sc->ranges[1].pci_base;
sc->ranges[1].flags = SYS_RES_IOPORT;
for (tuple = 0; tuple < MAX_RANGES_TUPLES; tuple++) {
base = sc->ranges[tuple].pci_base;
size = sc->ranges[tuple].size;
if (size == 0)
continue; /* empty range element */
rman = thunder_pem_rman(sc, sc->ranges[tuple].flags);
if (rman != NULL)
error = rman_manage_region(rman, base,
base + size - 1);
else
error = EINVAL;
if (error) {
device_printf(dev,
"rman_manage_region() failed. error = %d\n", error);
rman_fini(&sc->mem_rman);
return (error);
}
if (bootverbose) {
device_printf(dev,
"\tPCI addr: 0x%jx, CPU addr: 0x%jx, Size: 0x%jx, Flags:0x%jx\n",
sc->ranges[tuple].pci_base,
sc->ranges[tuple].phys_base,
sc->ranges[tuple].size,
sc->ranges[tuple].flags);
}
}
if (thunder_pem_init(sc)) {
device_printf(dev, "Failure during PEM init\n");
goto fail_io;
}
device_add_child(dev, "pci", -1);
return (bus_generic_attach(dev));
fail_io:
rman_fini(&sc->io_rman);
fail_mem:
rman_fini(&sc->mem_rman);
fail:
bus_free_resource(dev, SYS_RES_MEMORY, sc->reg);
return (ENXIO);
}
