| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpigen.h> |
| #include <amdblocks/acpi.h> |
| #include <amdblocks/alib.h> |
| #include <amdblocks/data_fabric.h> |
| #include <amdblocks/memmap.h> |
| #include <amdblocks/ioapic.h> |
| #include <amdblocks/iomap.h> |
| #include <amdblocks/root_complex.h> |
| #include <arch/ioapic.h> |
| #include <arch/vga.h> |
| #include <assert.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <stdint.h> |
| #include <soc/iomap.h> |
| #include "chip.h" |
| |
| #define DPTC_TOTAL_UPDATE_PARAMS 4 |
| |
| struct dptc_input { |
| uint16_t size; |
| struct alib_dptc_param params[DPTC_TOTAL_UPDATE_PARAMS]; |
| } __packed; |
| |
| #define DPTC_INPUTS(_thermctllmit, _sustained, _fast, _slow) \ |
| { \ |
| .size = sizeof(struct dptc_input), \ |
| .params = { \ |
| { \ |
| .id = ALIB_DPTC_THERMAL_CONTROL_LIMIT_ID, \ |
| .value = _thermctllmit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_SUSTAINED_POWER_LIMIT_ID, \ |
| .value = _sustained, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_FAST_PPT_LIMIT_ID, \ |
| .value = _fast, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_SLOW_PPT_LIMIT_ID, \ |
| .value = _slow, \ |
| }, \ |
| }, \ |
| } |
| /* |
| * |
| * +--------------------------------+ |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * 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; |
| |
| 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; |
| |
| /* The root complex has no PCI BARs implemented, so there's no need to call |
| pci_dev_read_resources for it */ |
| |
| fixed_io_range_reserved(dev, idx++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT); |
| |
| /* 0x0 - 0x9ffff */ |
| ram_range(dev, idx++, 0, 0xa0000); |
| |
| /* 0xa0000 - 0xbffff: legacy VGA */ |
| mmio_range(dev, idx++, VGA_MMIO_BASE, VGA_MMIO_SIZE); |
| |
| /* 0xc0000 - 0xfffff: Option ROM */ |
| reserved_ram_from_to(dev, idx++, 0xc0000, 1 * MiB); |
| |
| /* 1MB - bottom of DRAM reserved for early coreboot usage */ |
| ram_from_to(dev, idx++, 1 * MiB, early_reserved_dram_start); |
| |
| /* DRAM reserved for early coreboot usage */ |
| reserved_ram_from_to(dev, idx++, early_reserved_dram_start, early_reserved_dram_end); |
| |
| /* top of DRAM consumed early - low top usable RAM |
| * cbmem_top() accounts for low UMA and TSEG if they are used. */ |
| ram_from_to(dev, idx++, early_reserved_dram_end, mem_usable); |
| |
| mmconf_resource(dev, idx++); |
| |
| /* Reserve fixed IOMMU MMIO region */ |
| mmio_range(dev, idx++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE); |
| |
| read_fsp_resources(dev, &idx); |
| } |
| |
| static void root_complex_init(struct device *dev) |
| { |
| register_new_ioapic((u8 *)GNB_IO_APIC_ADDR); |
| } |
| |
| static void acipgen_dptci(void) |
| { |
| const struct soc_amd_picasso_config *config = config_of_soc(); |
| |
| /* Normal mode DPTC values. */ |
| struct dptc_input default_input = DPTC_INPUTS(config->thermctl_limit_degreeC, |
| config->sustained_power_limit_mW, |
| config->fast_ppt_limit_mW, |
| config->slow_ppt_limit_mW); |
| acpigen_write_alib_dptc_default((uint8_t *)&default_input, sizeof(default_input)); |
| |
| /* Tablet Mode */ |
| struct dptc_input tablet_mode_input = DPTC_INPUTS( |
| config->thermctl_limit_tablet_mode_degreeC, |
| config->sustained_power_limit_tablet_mode_mW, |
| config->fast_ppt_limit_tablet_mode_mW, |
| config->slow_ppt_limit_tablet_mode_mW); |
| acpigen_write_alib_dptc_tablet((uint8_t *)&tablet_mode_input, |
| sizeof(tablet_mode_input)); |
| } |
| |
| static void root_complex_fill_ssdt(const struct device *device) |
| { |
| if (CONFIG(SOC_AMD_COMMON_BLOCK_ACPI_DPTC)) |
| acipgen_dptci(); |
| } |
| |
| static const char *gnb_acpi_name(const struct device *dev) |
| { |
| return "GNB"; |
| } |
| |
| struct device_operations picasso_root_complex_operations = { |
| .read_resources = read_resources, |
| .set_resources = noop_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = root_complex_init, |
| .acpi_name = gnb_acpi_name, |
| .acpi_fill_ssdt = root_complex_fill_ssdt, |
| }; |
| |
| uint32_t get_iohc_misc_smn_base(struct device *domain) |
| { |
| return SMN_IOHC_MISC_BASE_13B1; |
| } |
| |
| static const struct non_pci_mmio_reg non_pci_mmio[] = { |
| { 0x2e0, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO }, |
| { 0x2e8, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO }, |
| /* The hardware has a 256 byte alignment requirement for the IOAPIC MMIO base, but we |
| tell the FSP to configure a 4k-aligned base address and this is reported as 4 KiB |
| resource. */ |
| { 0x2f0, 0xffffffffff00ull, 4 * KiB, IOMMU_IOAPIC_IDX }, |
| { 0x2f8, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO }, |
| { 0x300, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO }, |
| { 0x308, 0xfffffffff000ull, 4 * KiB, NON_PCI_RES_IDX_AUTO }, |
| { 0x318, 0xfffffff80000ull, 512 * KiB, NON_PCI_RES_IDX_AUTO }, |
| }; |
| |
| const struct non_pci_mmio_reg *get_iohc_non_pci_mmio_regs(size_t *count) |
| { |
| *count = ARRAY_SIZE(non_pci_mmio); |
| return non_pci_mmio; |
| } |
| |
| signed int get_iohc_fabric_id(struct device *domain) |
| { |
| switch (domain->path.domain.domain) { |
| case 0: |
| return IOMS0_FABRIC_ID; |
| default: |
| return -1; |
| } |
| } |
