| /* 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 <cbmem.h> |
| #include <ec/google/chromeec/ec.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 <string.h> |
| #include <vendorcode/google/chromeos/gnvs.h> |
| #include <wrdd.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 |
| }; |
| |
| #define MWAIT_RES(state, sub_state) \ |
| { \ |
| .addrl = (((state) << 4) | (sub_state)), \ |
| .space_id = ACPI_ADDRESS_SPACE_FIXED, \ |
| .bit_width = ACPI_FFIXEDHW_VENDOR_INTEL, \ |
| .bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT, \ |
| .access_size = ACPI_FFIXEDHW_FLAG_HW_COORD, \ |
| } |
| |
| 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(); |
| |
| 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; |
| } |
| uint32_t soc_read_sci_irq_select(void) |
| { |
| uintptr_t pmc_bar = soc_read_pmc_base(); |
| return read32((void *)pmc_bar + IRQ_REG); |
| } |
| |
| void acpi_create_gnvs(struct global_nvs *gnvs) |
| { |
| config_t *config = config_of_soc(); |
| |
| /* Set unknown wake source */ |
| gnvs->pm1i = -1; |
| |
| /* CPU core count */ |
| gnvs->pcnt = dev_count_cpu(); |
| |
| if (CONFIG(CONSOLE_CBMEM)) |
| /* Update the mem console pointer. */ |
| gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE); |
| |
| if (CONFIG(CHROMEOS)) { |
| /* Initialize Verified Boot data */ |
| chromeos_init_chromeos_acpi(&(gnvs->chromeos)); |
| if (CONFIG(EC_GOOGLE_CHROMEEC)) { |
| gnvs->chromeos.vbt2 = google_ec_running_ro() ? |
| ACTIVE_ECFW_RO : ACTIVE_ECFW_RW; |
| } else |
| gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO; |
| } |
| |
| /* Enable DPTF based on mainboard configuration */ |
| gnvs->dpte = config->dptf_enable; |
| |
| /* Fill in the Wifi Region id */ |
| gnvs->cid1 = wifi_regulatory_domain(); |
| |
| /* 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; |
| } |