| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| /* TODO: Check if this is still correct */ |
| |
| #include <acpi/acpigen.h> |
| #include <amdblocks/acpi.h> |
| #include <amdblocks/alib.h> |
| #include <amdblocks/ioapic.h> |
| #include <amdblocks/memmap.h> |
| #include <arch/ioapic.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <fsp/amd_misc_data.h> |
| #include <fsp/util.h> |
| #include <soc/iomap.h> |
| #include <stdint.h> |
| #include "chip.h" |
| |
| #define TDP_15W 15 |
| #define DPTC_TOTAL_UPDATE_PARAMS 13 |
| |
| struct dptc_input { |
| uint16_t size; |
| struct alib_dptc_param params[DPTC_TOTAL_UPDATE_PARAMS]; |
| } __packed; |
| |
| |
| #define DPTC_INPUTS(_thermctllmit, _spptTimeConst, _fast, _slow, \ |
| _vrmCurrentLimit, _vrmMaxCurrentLimit, _vrmSocCurrentLimit, \ |
| _sttMinLimit, _sttM1, _sttM2, _sttCApu, _sttAlphaApu, _sttSkinTempLimitApu) \ |
| { \ |
| .size = sizeof(struct dptc_input), \ |
| .params = { \ |
| { \ |
| .id = ALIB_DPTC_THERMAL_CONTROL_LIMIT_ID, \ |
| .value = _thermctllmit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_SLOW_PPT_TIME_CONSTANT_ID, \ |
| .value = _spptTimeConst, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_FAST_PPT_LIMIT_ID, \ |
| .value = _fast, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_SLOW_PPT_LIMIT_ID, \ |
| .value = _slow, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_VRM_CURRENT_LIMIT_ID, \ |
| .value = _vrmCurrentLimit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_VRM_MAXIMUM_CURRENT_LIMIT, \ |
| .value = _vrmMaxCurrentLimit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_VRM_SOC_CURRENT_LIMIT_ID, \ |
| .value = _vrmSocCurrentLimit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_MIN_LIMIT_ID, \ |
| .value = _sttMinLimit, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_M1_ID, \ |
| .value = _sttM1, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_M2_ID, \ |
| .value = _sttM2, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_C_APU_ID, \ |
| .value = _sttCApu, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_ALPHA_APU, \ |
| .value = _sttAlphaApu, \ |
| }, \ |
| { \ |
| .id = ALIB_DPTC_STT_SKIN_TEMPERATURE_LIMIT_APU_ID, \ |
| .value = _sttSkinTempLimitApu, \ |
| }, \ |
| }, \ |
| } |
| |
| /* |
| * |
| * +--------------------------------+ |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | | |
| * 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 | |
| * | (30KiB) | |
| * +--------------------------------+ |
| * | 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 (120KiB) | |
| * +--------------------------------+ 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_iterator; |
| const struct hob_resource *res; |
| struct resource *gnb_apic; |
| |
| 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_resource_kb(dev, idx++, 0, 0xa0000 / KiB); |
| |
| /* 0xa0000 - 0xbffff: legacy VGA */ |
| mmio_resource_kb(dev, idx++, 0xa0000 / KiB, 0x20000 / KiB); |
| |
| /* 0xc0000 - 0xfffff: Option ROM */ |
| reserved_ram_resource_kb(dev, idx++, 0xc0000 / KiB, 0x40000 / KiB); |
| |
| /* 1MiB - bottom of DRAM reserved for early coreboot usage */ |
| ram_resource_kb(dev, idx++, (1 * MiB) / KiB, |
| (early_reserved_dram_start - (1 * MiB)) / KiB); |
| |
| /* DRAM reserved for early coreboot usage */ |
| reserved_ram_resource_kb(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_kb(dev, idx++, early_reserved_dram_end / KiB, |
| (mem_usable - early_reserved_dram_end) / KiB); |
| |
| mmconf_resource(dev, idx++); |
| |
| /* GNB IOAPIC resource */ |
| gnb_apic = new_resource(dev, idx++); |
| gnb_apic->base = GNB_IO_APIC_ADDR; |
| gnb_apic->size = 0x00001000; |
| gnb_apic->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| if (fsp_hob_iterator_init(&hob_iterator) != CB_SUCCESS) { |
| printk(BIOS_ERR, "%s incomplete because no HOB list was found\n", |
| __func__); |
| return; |
| } |
| |
| while (fsp_hob_iterator_get_next_resource(&hob_iterator, &res) == CB_SUCCESS) { |
| 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_kb(dev, idx++, res->addr / KiB, res->length / KiB); |
| else if (res->type == EFI_RESOURCE_MEMORY_RESERVED) |
| reserved_ram_resource_kb(dev, idx++, res->addr / KiB, res->length / KiB); |
| else |
| printk(BIOS_ERR, "Failed to set resources for type %d\n", |
| res->type); |
| } |
| } |
| |
| 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_mendocino_config *config = config_of_soc(); |
| |
| /* Normal mode DPTC values. */ |
| struct dptc_input default_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s, |
| config->fast_ppt_limit_mW, |
| config->slow_ppt_limit_mW, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit, |
| config->stt_m1, |
| config->stt_m2, |
| config->stt_c_apu, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu); |
| acpigen_write_alib_dptc_default((uint8_t *)&default_input, sizeof(default_input)); |
| |
| /* Low/No Battery */ |
| struct dptc_input no_battery_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s, |
| config->fast_ppt_limit_mW, |
| config->slow_ppt_limit_mW, |
| config->vrm_current_limit_throttle_mA, |
| config->vrm_maximum_current_limit_throttle_mA, |
| config->vrm_soc_current_limit_throttle_mA, |
| config->stt_min_limit, |
| config->stt_m1, |
| config->stt_m2, |
| config->stt_c_apu, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu); |
| acpigen_write_alib_dptc_no_battery((uint8_t *)&no_battery_input, |
| sizeof(no_battery_input)); |
| |
| #if (CONFIG(FEATURE_TABLET_MODE_DPTC)) |
| struct dptc_input tablet_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s, |
| config->fast_ppt_limit_mW, |
| config->slow_ppt_limit_mW, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit, |
| config->stt_m1_tablet, |
| config->stt_m2_tablet, |
| config->stt_c_apu_tablet, |
| config->stt_alpha_apu_tablet, |
| config->stt_skin_temp_apu); |
| acpigen_write_alib_dptc_tablet((uint8_t *)&tablet_input, sizeof(tablet_input)); |
| #endif |
| |
| #if (CONFIG(FEATURE_DYNAMIC_DPTC)) |
| /* Profile B */ |
| struct dptc_input thermal_B_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s_B, |
| config->fast_ppt_limit_mW_B, |
| config->slow_ppt_limit_mW_B, |
| config->vrm_current_limit_throttle_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit_B, |
| config->stt_m1_B, |
| config->stt_m2_B, |
| config->stt_c_apu_B, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu_B); |
| acpigen_write_alib_dptc_thermal_B((uint8_t *)&thermal_B_input, |
| sizeof(thermal_B_input)); |
| |
| /* Profile C */ |
| struct dptc_input thermal_C_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s_C, |
| config->fast_ppt_limit_mW_C, |
| config->slow_ppt_limit_mW_C, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit_C, |
| config->stt_m1_C, |
| config->stt_m2_C, |
| config->stt_c_apu_C, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu_C); |
| acpigen_write_alib_dptc_thermal_C((uint8_t *)&thermal_C_input, |
| sizeof(thermal_C_input)); |
| |
| /* Profile D */ |
| struct dptc_input thermal_D_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s_D, |
| config->fast_ppt_limit_mW_D, |
| config->slow_ppt_limit_mW_D, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit_D, |
| config->stt_m1_D, |
| config->stt_m2_D, |
| config->stt_c_apu_D, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu_D); |
| acpigen_write_alib_dptc_thermal_D((uint8_t *)&thermal_D_input, |
| sizeof(thermal_D_input)); |
| |
| /* Profile E */ |
| struct dptc_input thermal_E_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s_E, |
| config->fast_ppt_limit_mW_E, |
| config->slow_ppt_limit_mW_E, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit_E, |
| config->stt_m1_E, |
| config->stt_m2_E, |
| config->stt_c_apu_E, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu_E); |
| acpigen_write_alib_dptc_thermal_E((uint8_t *)&thermal_E_input, |
| sizeof(thermal_E_input)); |
| |
| /* Profile F */ |
| struct dptc_input thermal_F_input = DPTC_INPUTS( |
| config->thermctl_limit_degreeC, |
| config->slow_ppt_time_constant_s_F, |
| config->fast_ppt_limit_mW_F, |
| config->slow_ppt_limit_mW_F, |
| config->vrm_current_limit_mA, |
| config->vrm_maximum_current_limit_mA, |
| config->vrm_soc_current_limit_mA, |
| config->stt_min_limit_F, |
| config->stt_m1_F, |
| config->stt_m2_F, |
| config->stt_c_apu_F, |
| config->stt_alpha_apu, |
| config->stt_skin_temp_apu_F); |
| acpigen_write_alib_dptc_thermal_F((uint8_t *)&thermal_F_input, |
| sizeof(thermal_F_input)); |
| #endif |
| } |
| |
| static void root_complex_fill_ssdt(const struct device *device) |
| { |
| uint32_t tdp = 0; |
| |
| if (get_amd_smu_reported_tdp(&tdp) != CB_SUCCESS) { |
| /* Unknown TDP, so return rather than setting invalid values. */ |
| return; |
| } |
| /* TODO(b/249359574): Add support for 6W DPTC values. */ |
| if (tdp != TDP_15W) |
| return; |
| |
| 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 mendocino_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, |
| }; |