static void nc_read_resources(struct device *dev)
{
unsigned long mmconf;
unsigned long bmbound;
unsigned long bmbound_hi;
unsigned long smmrrh;
unsigned long smmrrl;
unsigned long base_k, size_k;
const unsigned long four_gig_kib = (4 << (30 - 10));
int index = 0;
/* Read standard PCI resources. */
pci_dev_read_resources(dev);
/* PCIe memory-mapped config space access - 256 MiB. */
mmconf = iosf_bunit_read(BUNIT_MMCONF_REG) & ~((1 << 28) - 1);
mmio_resource(dev, BUNIT_MMCONF_REG, RES_IN_KiB(mmconf), 256 * 1024);
/* 0 -> 0xa0000 */
base_k = RES_IN_KiB(0);
size_k = RES_IN_KiB(0xa0000) - base_k;
ram_resource(dev, index++, base_k, size_k);
/* The SMMRR registers are 1MiB granularity with smmrrh being
* inclusive of the SMM region. */
smmrrl = (iosf_bunit_read(BUNIT_SMRRL) & 0xffff) << 10;
smmrrh = ((iosf_bunit_read(BUNIT_SMRRH) & 0xffff) + 1) << 10;
/* 0xc0000 -> smrrl - cacheable and usable */
base_k = RES_IN_KiB(0xc0000);
size_k = smmrrl - base_k;
ram_resource(dev, index++, base_k, size_k);
if (smmrrh > smmrrl)
reserved_ram_resource(dev, index++, smmrrl, smmrrh - smmrrl);
/* All address space between bmbound and smmrrh is unusable. */
bmbound = RES_IN_KiB(nc_read_top_of_low_memory());
mmio_resource(dev, index++, smmrrh, bmbound - smmrrh);
/* The BMBOUND_HI register matches register bits of 31:24 with address
* bits of 35:28. Therefore, shift register to align properly. */
bmbound_hi = iosf_bunit_read(BUNIT_BMBOUND_HI) & ~((1 << 24) - 1);
bmbound_hi = RES_IN_KiB(bmbound_hi) << 4;
if (bmbound_hi > four_gig_kib)
ram_resource(dev, index++, four_gig_kib,
bmbound_hi - four_gig_kib);
/* Reserve everything between A segment and 1MB:
*
* 0xa0000 - 0xbffff: legacy VGA
* 0xc0000 - 0xfffff: RAM
*/
mmio_resource(dev, index++, (0xa0000 >> 10), (0xc0000 - 0xa0000) >> 10);
reserved_ram_resource(dev, index++, (0xc0000 >> 10),
(0x100000 - 0xc0000) >> 10);
if (CONFIG(CHROMEOS))
chromeos_reserve_ram_oops(dev, index++);
}
static void nc_read_resources(struct device *dev)
{
unsigned long base_k;
int index = 0;
unsigned long size_k;
/* Read standard PCI resources. */
pci_dev_read_resources(dev);
/* 0 -> 0xa0000 */
base_k = 0;
size_k = 0xa0000 - base_k;
ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
/*
* Reserve everything between A segment and 1MB:
*
* 0xa0000 - 0xbffff: legacy VGA
* 0xc0000 - 0xdffff: RAM
* 0xe0000 - 0xfffff: ROM shadow
*/
base_k += size_k;
size_k = 0xc0000 - base_k;
mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
base_k += size_k;
size_k = 0x100000 - base_k;
reserved_ram_resource(dev, index++, RES_IN_KIB(base_k),
RES_IN_KIB(size_k));
/* 0x100000 -> cbmem_top - cacheable and usable */
base_k += size_k;
size_k = (unsigned long)cbmem_top() - base_k;
ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
/* cbmem_top -> 0xc0000000 - reserved */
base_k += size_k;
size_k = 0xc0000000 - base_k;
reserved_ram_resource(dev, index++, RES_IN_KIB(base_k),
RES_IN_KIB(size_k));
/* 0xc0000000 -> 4GiB is mmio. */
base_k += size_k;
size_k = 0x100000000ull - base_k;
mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
}
void chromeos_reserve_ram_oops(struct device *dev, int idx)
{
const unsigned long base = ramoops_base >> 10;
const unsigned long size = ramoops_size >> 10;
reserved_ram_resource(dev, idx, base, size);
boot_state_sched_on_exit(&bscb_ramoops, BS_WRITE_TABLES);
}
static void soc_read_resources(device_t dev)
{
unsigned long index = 0;
int i; uintptr_t begin, end;
size_t size;
for (i = 0; i < CARVEOUT_NUM; i++) {
carveout_range(i, &begin, &size);
if (size == 0)
continue;
reserved_ram_resource(dev, index++, begin * KiB, size * KiB);
}
memory_in_range_below_4gb(&begin, &end);
size = end - begin;
ram_resource(dev, index++, begin * KiB, size * KiB);
memory_in_range_above_4gb(&begin, &end);
size = end - begin;
ram_resource(dev, index++, begin * KiB, size * KiB);
}
static void soc_read_resources(struct device *dev)
{
ram_resource(dev, 0, (uintptr_t)_dram / KiB, DRAMSIZE4GB / KiB);
reserved_ram_resource(dev, 1, (uintptr_t)_dram_reserved / KiB,
_dram_reserved_size / KiB);
}
