| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi.h> |
| #include <acpi/acpi_gnvs.h> |
| #include <acpi/acpigen.h> |
| #include <device/mmio.h> |
| #include <arch/smp/mpspec.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci_ops.h> |
| #include <intelblocks/cpulib.h> |
| #include <intelblocks/pmclib.h> |
| #include <intelblocks/acpi.h> |
| #include <soc/cpu.h> |
| #include <soc/iomap.h> |
| #include <soc/nvs.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pm.h> |
| #include <soc/soc_chip.h> |
| #include <soc/systemagent.h> |
| #include <cpu/cpu.h> |
| #include <types.h> |
| |
| |
| #define DEFAULT_CPU_D_STATE D0 |
| #define LPI_STATES_ALL 0xff |
| #define LPI_REVISION 0 |
| #define LPI_ENABLED 1 |
| |
| |
| /* |
| * List of supported C-states in this processor. |
| */ |
| enum { |
| C_STATE_C0, /* 0 */ |
| C_STATE_C1, /* 1 */ |
| C_STATE_C1E, /* 2 */ |
| C_STATE_C6_SHORT_LAT, /* 3 */ |
| C_STATE_C6_LONG_LAT, /* 4 */ |
| C_STATE_C7_SHORT_LAT, /* 5 */ |
| C_STATE_C7_LONG_LAT, /* 6 */ |
| C_STATE_C7S_SHORT_LAT, /* 7 */ |
| C_STATE_C7S_LONG_LAT, /* 8 */ |
| C_STATE_C8, /* 9 */ |
| C_STATE_C9, /* 10 */ |
| C_STATE_C10, /* 11 */ |
| NUM_C_STATES |
| }; |
| |
| static const acpi_cstate_t cstate_map[NUM_C_STATES] = { |
| [C_STATE_C0] = {}, |
| [C_STATE_C1] = { |
| .latency = C1_LATENCY, |
| .power = C1_POWER, |
| .resource = MWAIT_RES(0, 0), |
| }, |
| [C_STATE_C1E] = { |
| .latency = C1_LATENCY, |
| .power = C1_POWER, |
| .resource = MWAIT_RES(0, 1), |
| }, |
| [C_STATE_C6_SHORT_LAT] = { |
| .latency = C6_LATENCY, |
| .power = C6_POWER, |
| .resource = MWAIT_RES(2, 0), |
| }, |
| [C_STATE_C6_LONG_LAT] = { |
| .latency = C6_LATENCY, |
| .power = C6_POWER, |
| .resource = MWAIT_RES(2, 1), |
| }, |
| [C_STATE_C7_SHORT_LAT] = { |
| .latency = C7_LATENCY, |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 0), |
| }, |
| [C_STATE_C7_LONG_LAT] = { |
| .latency = C7_LATENCY, |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 1), |
| }, |
| [C_STATE_C7S_SHORT_LAT] = { |
| .latency = C7_LATENCY, |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 2), |
| }, |
| [C_STATE_C7S_LONG_LAT] = { |
| .latency = C7_LATENCY, |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 3), |
| }, |
| [C_STATE_C8] = { |
| .latency = C8_LATENCY, |
| .power = C8_POWER, |
| .resource = MWAIT_RES(4, 0), |
| }, |
| [C_STATE_C9] = { |
| .latency = C9_LATENCY, |
| .power = C9_POWER, |
| .resource = MWAIT_RES(5, 0), |
| }, |
| [C_STATE_C10] = { |
| .latency = C10_LATENCY, |
| .power = C10_POWER, |
| .resource = MWAIT_RES(6, 0), |
| }, |
| }; |
| |
| static int cstate_set_non_s0ix[] = { |
| C_STATE_C1, |
| C_STATE_C6_LONG_LAT, |
| C_STATE_C7S_LONG_LAT |
| }; |
| |
| static int cstate_set_s0ix[] = { |
| C_STATE_C1, |
| C_STATE_C6_LONG_LAT, |
| C_STATE_C10 |
| }; |
| |
| enum dev_sleep_states { |
| D0, /* 0 */ |
| D1, /* 1 */ |
| D2, /* 2 */ |
| D3, /* 3 */ |
| NONE |
| }; |
| |
| const acpi_cstate_t *soc_get_cstate_map(size_t *entries) |
| { |
| static acpi_cstate_t map[MAX(ARRAY_SIZE(cstate_set_s0ix), |
| ARRAY_SIZE(cstate_set_non_s0ix))]; |
| int *set; |
| int i; |
| |
| config_t *config = config_of_soc(); |
| |
| int is_s0ix_enable = config->s0ix_enable; |
| |
| if (is_s0ix_enable) { |
| *entries = ARRAY_SIZE(cstate_set_s0ix); |
| set = cstate_set_s0ix; |
| } else { |
| *entries = ARRAY_SIZE(cstate_set_non_s0ix); |
| set = cstate_set_non_s0ix; |
| } |
| |
| for (i = 0; i < *entries; i++) { |
| map[i] = cstate_map[set[i]]; |
| map[i].ctype = i + 1; |
| } |
| return map; |
| } |
| |
| void soc_power_states_generation(int core_id, int cores_per_package) |
| { |
| config_t *config = config_of_soc(); |
| |
| if (config->eist_enable) |
| /* Generate P-state tables */ |
| generate_p_state_entries(core_id, cores_per_package); |
| } |
| |
| void soc_fill_fadt(acpi_fadt_t *fadt) |
| { |
| const uint16_t pmbase = ACPI_BASE_ADDRESS; |
| |
| config_t *config = config_of_soc(); |
| |
| fadt->pm_tmr_blk = pmbase + PM1_TMR; |
| fadt->pm_tmr_len = 4; |
| fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO; |
| fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8; |
| fadt->x_pm_tmr_blk.bit_offset = 0; |
| fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; |
| fadt->x_pm_tmr_blk.addrl = pmbase + PM1_TMR; |
| fadt->x_pm_tmr_blk.addrh = 0x0; |
| |
| if (config->s0ix_enable) |
| fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0; |
| } |
| |
| static const struct { |
| uint8_t pci_dev; |
| enum dev_sleep_states min_sleep_state; |
| } min_pci_sleep_states[] = { |
| { SA_DEVFN_ROOT, D3 }, |
| { SA_DEVFN_CPU_PCIE1_0, D3 }, |
| { SA_DEVFN_IGD, D3 }, |
| { SA_DEVFN_DPTF, D3 }, |
| { SA_DEVFN_IPU, D3 }, |
| { SA_DEVFN_CPU_PCIE6_0, D3 }, |
| { SA_DEVFN_CPU_PCIE6_2, D3 }, |
| { SA_DEVFN_TBT0, D3 }, |
| { SA_DEVFN_TBT1, D3 }, |
| { SA_DEVFN_TBT2, D3 }, |
| { SA_DEVFN_TBT3, D3 }, |
| { SA_DEVFN_GNA, D3 }, |
| { SA_DEVFN_TCSS_XHCI, D3 }, |
| { SA_DEVFN_TCSS_XDCI, D3 }, |
| { SA_DEVFN_TCSS_DMA0, D3 }, |
| { SA_DEVFN_TCSS_DMA1, D3 }, |
| { SA_DEVFN_VMD, D3 }, |
| { PCH_DEVFN_I2C6, D3 }, |
| { PCH_DEVFN_I2C7, D3 }, |
| { PCH_DEVFN_THC0, D3 }, |
| { PCH_DEVFN_THC1, D3 }, |
| { PCH_DEVFN_XHCI, D3 }, |
| { PCH_DEVFN_USBOTG, D3 }, |
| { PCH_DEVFN_SRAM, D3 }, |
| { PCH_DEVFN_CNVI_WIFI, D3 }, |
| { PCH_DEVFN_I2C0, D3 }, |
| { PCH_DEVFN_I2C1, D3 }, |
| { PCH_DEVFN_I2C2, D3 }, |
| { PCH_DEVFN_I2C3, D3 }, |
| { PCH_DEVFN_CSE, D0 }, |
| { PCH_DEVFN_SATA, D3 }, |
| { PCH_DEVFN_I2C4, D3 }, |
| { PCH_DEVFN_I2C5, D3 }, |
| { PCH_DEVFN_UART2, D3 }, |
| { PCH_DEVFN_PCIE1, D0 }, |
| { PCH_DEVFN_PCIE2, D0 }, |
| { PCH_DEVFN_PCIE3, D0 }, |
| { PCH_DEVFN_PCIE4, D0 }, |
| { PCH_DEVFN_PCIE5, D0 }, |
| { PCH_DEVFN_PCIE6, D0 }, |
| { PCH_DEVFN_PCIE7, D0 }, |
| { PCH_DEVFN_PCIE8, D0 }, |
| { PCH_DEVFN_PCIE9, D0 }, |
| { PCH_DEVFN_PCIE10, D0 }, |
| { PCH_DEVFN_PCIE11, D0 }, |
| { PCH_DEVFN_PCIE12, D0 }, |
| { PCH_DEVFN_UART0, D3 }, |
| { PCH_DEVFN_UART1, D3 }, |
| { PCH_DEVFN_GSPI0, D3 }, |
| { PCH_DEVFN_GSPI1, D3 }, |
| { PCH_DEVFN_ESPI, D0 }, |
| { PCH_DEVFN_PMC, D0 }, |
| { PCH_DEVFN_HDA, D0 }, |
| { PCH_DEVFN_SPI, D3 }, |
| { PCH_DEVFN_GBE, D3 }, |
| }; |
| |
| static enum dev_sleep_states get_min_sleep_state(const struct device *dev) |
| { |
| if (!is_dev_enabled(dev)) |
| return NONE; |
| |
| switch (dev->path.type) { |
| case DEVICE_PATH_APIC: |
| return DEFAULT_CPU_D_STATE; |
| |
| case DEVICE_PATH_PCI: |
| for (size_t i = 0; i < ARRAY_SIZE(min_pci_sleep_states); i++) |
| if (min_pci_sleep_states[i].pci_dev == dev->path.pci.devfn) |
| return min_pci_sleep_states[i].min_sleep_state; |
| printk(BIOS_WARNING, "Unknown min d_state for %x\n", dev->path.pci.devfn); |
| return NONE; |
| |
| default: |
| return NONE; |
| } |
| } |
| |
| /* Generate the LPI constraint table and return the number of devices included */ |
| void soc_lpi_get_constraints(void *unused) |
| { |
| unsigned int num_entries; |
| const struct device *dev; |
| enum dev_sleep_states min_sleep_state; |
| |
| num_entries = 0; |
| |
| for (dev = all_devices; dev; dev = dev->next) { |
| if (get_min_sleep_state(dev) != NONE) |
| num_entries++; |
| } |
| |
| acpigen_emit_byte(RETURN_OP); |
| acpigen_write_package(num_entries); |
| |
| for (dev = all_devices; dev; dev = dev->next) { |
| min_sleep_state = get_min_sleep_state(dev); |
| if (min_sleep_state == NONE) |
| continue; |
| |
| acpigen_write_package(3); |
| { |
| /* Emit the device path */ |
| switch (dev->path.type) { |
| case DEVICE_PATH_PCI: |
| acpigen_emit_namestring(acpi_device_path(dev)); |
| break; |
| |
| case DEVICE_PATH_APIC: |
| char path[32] = {0}; |
| |
| /* Lookup CPU id */ |
| for (size_t i = 0; i < CONFIG_MAX_CPUS; i++) { |
| if (cpu_get_apic_id(i) == dev->path.apic.apic_id) { |
| snprintf(path, sizeof(path), |
| CONFIG_ACPI_CPU_STRING, i); |
| break; |
| } |
| } |
| |
| acpigen_emit_namestring(path); |
| break; |
| |
| default: |
| /* Unhandled */ |
| printk(BIOS_WARNING, |
| "Unhandled device path type %d\n", dev->path.type); |
| acpigen_emit_namestring(NULL); |
| break; |
| } |
| |
| acpigen_write_integer(LPI_ENABLED); |
| acpigen_write_package(2); |
| { |
| acpigen_write_integer(LPI_REVISION); |
| acpigen_write_package(2); /* no optional device info */ |
| { |
| /* Assume constraints apply to all entries */ |
| acpigen_write_integer(LPI_STATES_ALL); |
| acpigen_write_integer(min_sleep_state); /* min D-state */ |
| } |
| acpigen_write_package_end(); |
| } |
| acpigen_write_package_end(); |
| } |
| acpigen_write_package_end(); |
| } |
| |
| acpigen_write_package_end(); |
| printk(BIOS_INFO, "Returning SoC specific constraint package for %d devices\n", num_entries); |
| } |
| |
| uint32_t soc_read_sci_irq_select(void) |
| { |
| return read32p(soc_read_pmc_base() + IRQ_REG); |
| } |
| |
| static unsigned long soc_fill_dmar(unsigned long current) |
| { |
| const uint64_t gfxvtbar = MCHBAR64(GFXVTBAR) & VTBAR_MASK; |
| const bool gfxvten = MCHBAR32(GFXVTBAR) & VTBAR_ENABLED; |
| |
| if (is_devfn_enabled(SA_DEVFN_IGD) && gfxvtbar && gfxvten) { |
| const unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, 0, 0, gfxvtbar); |
| current += acpi_create_dmar_ds_pci(current, 0, SA_DEV_SLOT_IGD, 0); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| |
| const uint64_t ipuvtbar = MCHBAR64(IPUVTBAR) & VTBAR_MASK; |
| const bool ipuvten = MCHBAR32(IPUVTBAR) & VTBAR_ENABLED; |
| |
| if (is_devfn_enabled(SA_DEVFN_IPU) && ipuvtbar && ipuvten) { |
| const unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, 0, 0, ipuvtbar); |
| current += acpi_create_dmar_ds_pci(current, 0, SA_DEV_SLOT_IPU, 0); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| |
| /* TCSS Thunderbolt root ports */ |
| for (unsigned int i = 0; i < MAX_TBT_PCIE_PORT; i++) { |
| if (is_devfn_enabled(SA_DEVFN_TBT(i))) { |
| const uint64_t tbtbar = MCHBAR64(TBTxBAR(i)) & VTBAR_MASK; |
| const bool tbten = MCHBAR32(TBTxBAR(i)) & VTBAR_ENABLED; |
| if (tbtbar && tbten) { |
| const unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, 0, 0, tbtbar); |
| current += acpi_create_dmar_ds_pci_br(current, 0, |
| SA_DEV_SLOT_TBT, i); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| } |
| } |
| |
| const uint64_t vtvc0bar = MCHBAR64(VTVC0BAR) & VTBAR_MASK; |
| const bool vtvc0en = MCHBAR32(VTVC0BAR) & VTBAR_ENABLED; |
| |
| if (vtvc0bar && vtvc0en) { |
| const unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, |
| DRHD_INCLUDE_PCI_ALL, 0, vtvc0bar); |
| current += acpi_create_dmar_ds_ioapic(current, |
| 2, V_P2SB_CFG_IBDF_BUS, V_P2SB_CFG_IBDF_DEV, |
| V_P2SB_CFG_IBDF_FUNC); |
| current += acpi_create_dmar_ds_msi_hpet(current, |
| 0, V_P2SB_CFG_HBDF_BUS, V_P2SB_CFG_HBDF_DEV, |
| V_P2SB_CFG_HBDF_FUNC); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| |
| /* Add RMRR entry */ |
| if (is_devfn_enabled(SA_DEVFN_IGD)) { |
| const unsigned long tmp = current; |
| current += acpi_create_dmar_rmrr(current, 0, |
| sa_get_gsm_base(), sa_get_tolud_base() - 1); |
| current += acpi_create_dmar_ds_pci(current, 0, SA_DEV_SLOT_IGD, 0); |
| acpi_dmar_rmrr_fixup(tmp, current); |
| } |
| |
| return current; |
| } |
| |
| unsigned long sa_write_acpi_tables(const struct device *dev, unsigned long current, |
| struct acpi_rsdp *rsdp) |
| { |
| acpi_dmar_t *const dmar = (acpi_dmar_t *)current; |
| |
| /* |
| * Create DMAR table only if we have VT-d capability and FSP does not override its |
| * feature. |
| */ |
| if ((pci_read_config32(dev, CAPID0_A) & VTD_DISABLE) || |
| !(MCHBAR32(VTVC0BAR) & VTBAR_ENABLED)) |
| return current; |
| |
| printk(BIOS_DEBUG, "ACPI: * DMAR\n"); |
| acpi_create_dmar(dmar, DMAR_INTR_REMAP | DMA_CTRL_PLATFORM_OPT_IN_FLAG, soc_fill_dmar); |
| current += dmar->header.length; |
| current = acpi_align_current(current); |
| acpi_add_table(rsdp, dmar); |
| |
| return current; |
| } |
| |
| void soc_fill_gnvs(struct global_nvs *gnvs) |
| { |
| config_t *config = config_of_soc(); |
| |
| /* Enable DPTF based on mainboard configuration */ |
| gnvs->dpte = config->dptf_enable; |
| |
| /* Set USB2/USB3 wake enable bitmaps. */ |
| gnvs->u2we = config->usb2_wake_enable_bitmap; |
| gnvs->u3we = config->usb3_wake_enable_bitmap; |
| |
| /* Fill in Above 4GB MMIO resource */ |
| sa_fill_gnvs(gnvs); |
| } |
| |
| int soc_madt_sci_irq_polarity(int sci) |
| { |
| return MP_IRQ_POLARITY_HIGH; |
| } |