| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <amdblocks/acpi.h> |
| #include <amdblocks/memmap.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <cpu/amd/msr.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <fsp/util.h> |
| #include <stdint.h> |
| |
| /* |
| * |
| * +--------------------------------+ |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * reserved_dram_end +--------------------------------+ |
| * | | |
| * | verstage (if reqd) | |
| * | (VERSTAGE_SIZE) | |
| * +--------------------------------+ VERSTAGE_ADDR |
| * | | |
| * | FSP-M | |
| * | (FSP_M_SIZE) | |
| * +--------------------------------+ FSP_M_ADDR |
| * | romstage | |
| * | (ROMSTAGE_SIZE) | |
| * +--------------------------------+ ROMSTAGE_ADDR = BOOTBLOCK_END |
| * | | X86_RESET_VECTOR = BOOTBLOCK_END - 0x10 |
| * | bootblock | |
| * | (C_ENV_BOOTBLOCK_SIZE) | |
| * +--------------------------------+ BOOTBLOCK_ADDR = BOOTBLOCK_END - C_ENV_BOOTBLOCK_SIZE |
| * | Unused hole | |
| * | (86KiB) | |
| * +--------------------------------+ |
| * | FMAP cache (FMAP_SIZE) | |
| * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE + PRERAM_CBMEM_CONSOLE_SIZE + 0x200 |
| * | Early Timestamp region (512B) | |
| * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE + PRERAM_CBMEM_CONSOLE_SIZE |
| * | Preram CBMEM console | |
| * | (PRERAM_CBMEM_CONSOLE_SIZE) | |
| * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE |
| * | PSP shared (vboot workbuf) | |
| * | (PSP_SHAREDMEM_SIZE) | |
| * +--------------------------------+ PSP_SHAREDMEM_BASE |
| * | APOB (64KiB) | |
| * +--------------------------------+ PSP_APOB_DRAM_ADDRESS |
| * | Early BSP stack | |
| * | (EARLYRAM_BSP_STACK_SIZE) | |
| * reserved_dram_start +--------------------------------+ EARLY_RESERVED_DRAM_BASE |
| * | DRAM | |
| * +--------------------------------+ 0x100000 |
| * | Option ROM | |
| * +--------------------------------+ 0xc0000 |
| * | Legacy VGA | |
| * +--------------------------------+ 0xa0000 |
| * | DRAM | |
| * +--------------------------------+ 0x0 |
| */ |
| static void read_resources(struct device *dev) |
| { |
| uint32_t mem_usable = (uintptr_t)cbmem_top(); |
| unsigned int idx = 0; |
| const struct hob_header *hob = fsp_get_hob_list(); |
| const struct hob_resource *res; |
| |
| uintptr_t early_reserved_dram_start, early_reserved_dram_end; |
| const struct memmap_early_dram *e = memmap_get_early_dram_usage(); |
| |
| early_reserved_dram_start = e->base; |
| early_reserved_dram_end = e->base + e->size; |
| |
| /* 0x0 - 0x9ffff */ |
| ram_resource(dev, idx++, 0, 0xa0000 / KiB); |
| |
| /* 0xa0000 - 0xbffff: legacy VGA */ |
| mmio_resource(dev, idx++, 0xa0000 / KiB, 0x20000 / KiB); |
| |
| /* 0xc0000 - 0xfffff: Option ROM */ |
| reserved_ram_resource(dev, idx++, 0xc0000 / KiB, 0x40000 / KiB); |
| |
| /* 1MiB - bottom of DRAM reserved for early coreboot usage */ |
| ram_resource(dev, idx++, (1 * MiB) / KiB, |
| (early_reserved_dram_start - (1 * MiB)) / KiB); |
| |
| /* DRAM reserved for early coreboot usage */ |
| reserved_ram_resource(dev, idx++, early_reserved_dram_start / KiB, |
| (early_reserved_dram_end - early_reserved_dram_start) / KiB); |
| |
| /* |
| * top of DRAM consumed early - low top usable RAM |
| * cbmem_top() accounts for low UMA and TSEG if they are used. |
| */ |
| ram_resource(dev, idx++, early_reserved_dram_end / KiB, |
| (mem_usable - early_reserved_dram_end) / KiB); |
| |
| mmconf_resource(dev, MMIO_CONF_BASE); |
| |
| if (!hob) { |
| printk(BIOS_ERR, "Error: %s incomplete because no HOB list was found\n", |
| __func__); |
| return; |
| } |
| |
| for (; hob->type != HOB_TYPE_END_OF_HOB_LIST; hob = fsp_next_hob(hob)) { |
| |
| if (hob->type != HOB_TYPE_RESOURCE_DESCRIPTOR) |
| continue; |
| |
| res = fsp_hob_header_to_resource(hob); |
| |
| if (res->type == EFI_RESOURCE_SYSTEM_MEMORY && res->addr < mem_usable) |
| continue; /* 0 through low usable was set above */ |
| if (res->type == EFI_RESOURCE_MEMORY_MAPPED_IO) |
| continue; /* Done separately */ |
| |
| if (res->type == EFI_RESOURCE_SYSTEM_MEMORY) |
| ram_resource(dev, idx++, res->addr / KiB, res->length / KiB); |
| else if (res->type == EFI_RESOURCE_MEMORY_RESERVED) |
| reserved_ram_resource(dev, idx++, res->addr / KiB, res->length / KiB); |
| else |
| printk(BIOS_ERR, "Error: failed to set resources for type %d\n", |
| res->type); |
| } |
| } |
| |
| static void root_complex_fill_ssdt(const struct device *device) |
| { |
| acpi_fill_root_complex_tom(device); |
| } |
| |
| static const char *gnb_acpi_name(const struct device *dev) |
| { |
| return "GNB"; |
| } |
| |
| static struct device_operations root_complex_operations = { |
| .read_resources = read_resources, |
| .set_resources = noop_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .acpi_name = gnb_acpi_name, |
| .acpi_fill_ssdt = root_complex_fill_ssdt, |
| }; |
| |
| static const struct pci_driver family17_root_complex __pci_driver = { |
| .ops = &root_complex_operations, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .device = PCI_DEVICE_ID_AMD_17H_MODEL_606F_NB, |
| }; |