| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi.h> |
| #include <acpi/acpi_gnvs.h> |
| #include <acpi/acpigen.h> |
| #include <arch/smp/mpspec.h> |
| #include <console/console.h> |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <intelblocks/cpulib.h> |
| #include <intelblocks/pmclib.h> |
| #include <intelblocks/acpi.h> |
| #include <intelblocks/p2sb.h> |
| #include <soc/cpu.h> |
| #include <soc/iomap.h> |
| #include <soc/nvs.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pm.h> |
| #include <soc/systemagent.h> |
| #include <string.h> |
| |
| #include "chip.h" |
| |
| /* |
| * 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 = 0, |
| .power = C1_POWER, |
| .resource = MWAIT_RES(0, 0), |
| }, |
| [C_STATE_C1E] = { |
| .latency = 0, |
| .power = C1_POWER, |
| .resource = MWAIT_RES(0, 1), |
| }, |
| [C_STATE_C6_SHORT_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C6_POWER, |
| .resource = MWAIT_RES(2, 0), |
| }, |
| [C_STATE_C6_LONG_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C6_POWER, |
| .resource = MWAIT_RES(2, 1), |
| }, |
| [C_STATE_C7_SHORT_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 0), |
| }, |
| [C_STATE_C7_LONG_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 1), |
| }, |
| [C_STATE_C7S_SHORT_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 2), |
| }, |
| [C_STATE_C7S_LONG_LAT] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C7_POWER, |
| .resource = MWAIT_RES(3, 3), |
| }, |
| [C_STATE_C8] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C8_POWER, |
| .resource = MWAIT_RES(4, 0), |
| }, |
| [C_STATE_C9] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C9_POWER, |
| .resource = MWAIT_RES(5, 0), |
| }, |
| [C_STATE_C10] = { |
| .latency = C_STATE_LATENCY_FROM_LAT_REG(0), |
| .power = C10_POWER, |
| .resource = MWAIT_RES(6, 0), |
| }, |
| }; |
| |
| static int cstate_set_non_s0ix[] = { |
| C_STATE_C1E, |
| C_STATE_C6_LONG_LAT, |
| C_STATE_C7S_LONG_LAT |
| }; |
| |
| static int cstate_set_s0ix[] = { |
| C_STATE_C1E, |
| C_STATE_C7S_LONG_LAT, |
| C_STATE_C10 |
| }; |
| |
| 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++) { |
| memcpy(&map[i], &cstate_map[set[i]], sizeof(acpi_cstate_t)); |
| 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(); |
| |
| /* Generate P-state tables */ |
| if (config->eist_enable) |
| generate_p_state_entries(core_id, cores_per_package); |
| } |
| |
| void soc_fill_fadt(acpi_fadt_t *fadt) |
| { |
| const uint16_t pmbase = ACPI_BASE_ADDRESS; |
| const struct soc_intel_cannonlake_config *config; |
| 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; |
| } |
| uint32_t soc_read_sci_irq_select(void) |
| { |
| return read32p(soc_read_pmc_base() + IRQ_REG); |
| } |
| |
| void soc_fill_gnvs(struct global_nvs *gnvs) |
| { |
| const struct soc_intel_cannonlake_config *config; |
| 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); |
| } |
| |
| uint32_t acpi_fill_soc_wake(uint32_t generic_pm1_en, |
| const struct chipset_power_state *ps) |
| { |
| /* |
| * WAK_STS bit is set when the system is in one of the sleep states |
| * (via the SLP_EN bit) and an enabled wake event occurs. Upon setting |
| * this bit, the PMC will transition the system to the ON state and |
| * can only be set by hardware and can only be cleared by writing a one |
| * to this bit position. |
| */ |
| |
| generic_pm1_en |= WAK_STS | RTC_EN | PWRBTN_EN; |
| return generic_pm1_en; |
| } |
| |
| int soc_madt_sci_irq_polarity(int sci) |
| { |
| return MP_IRQ_POLARITY_HIGH; |
| } |
| |
| static unsigned long soc_fill_dmar(unsigned long current) |
| { |
| struct device *const igfx_dev = pcidev_path_on_root(SA_DEVFN_IGD); |
| uint64_t gfxvtbar = MCHBAR64(GFXVTBAR) & VTBAR_MASK; |
| bool gfxvten = MCHBAR32(GFXVTBAR) & VTBAR_ENABLED; |
| const bool emit_igd = igfx_dev && igfx_dev->enabled && gfxvtbar && gfxvten; |
| if (emit_igd) { |
| unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, 0, 0, gfxvtbar); |
| current += acpi_create_dmar_ds_pci(current, 0, 2, 0); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| |
| struct device *const ipu_dev = pcidev_path_on_root(SA_DEVFN_IPU); |
| uint64_t ipuvtbar = MCHBAR64(IPUVTBAR) & VTBAR_MASK; |
| bool ipuvten = MCHBAR32(IPUVTBAR) & VTBAR_ENABLED; |
| |
| if (ipu_dev && ipu_dev->enabled && ipuvtbar && ipuvten) { |
| unsigned long tmp = current; |
| |
| current += acpi_create_dmar_drhd(current, 0, 0, ipuvtbar); |
| current += acpi_create_dmar_ds_pci(current, 0, 5, 0); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| } |
| |
| uint64_t vtvc0bar = MCHBAR64(VTVC0BAR) & VTBAR_MASK; |
| 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 after all DRHD entries */ |
| if (emit_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, 2, 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, soc_fill_dmar); |
| |
| current += dmar->header.length; |
| current = acpi_align_current(current); |
| acpi_add_table(rsdp, dmar); |
| |
| return current; |
| } |