2020-04-04 18:50:57 +02:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2019-04-22 22:55:16 +02:00
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/*
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* ACPI - create the Fixed ACPI Description Tables (FADT)
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*/
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#include <console/console.h>
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2020-05-02 19:24:23 +02:00
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#include <acpi/acpi.h>
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#include <acpi/acpigen.h>
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2019-04-22 22:55:16 +02:00
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#include <device/pci_ops.h>
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#include <arch/ioapic.h>
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2020-01-31 20:53:45 +01:00
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#include <arch/smp/mpspec.h>
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2020-12-10 12:28:38 +01:00
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#include <cpu/amd/cpuid.h>
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2020-09-14 14:22:47 +02:00
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#include <cpu/amd/msr.h>
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2019-04-22 22:55:16 +02:00
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#include <cpu/x86/smm.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <amdblocks/acpimmio.h>
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#include <amdblocks/acpi.h>
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2021-02-11 18:35:32 +01:00
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#include <amdblocks/chip.h>
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2021-02-08 22:23:54 +01:00
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#include <amdblocks/cpu.h>
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2021-02-12 00:43:20 +01:00
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#include <amdblocks/ioapic.h>
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2019-04-22 22:55:16 +02:00
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#include <soc/acpi.h>
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#include <soc/pci_devs.h>
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2020-09-14 14:22:47 +02:00
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#include <soc/msr.h>
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2019-04-22 22:55:16 +02:00
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#include <soc/southbridge.h>
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#include <soc/gpio.h>
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#include <version.h>
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2020-01-31 20:53:45 +01:00
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#include "chip.h"
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2019-04-22 22:55:16 +02:00
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unsigned long acpi_fill_madt(unsigned long current)
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{
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/* create all subtables for processors */
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current = acpi_create_madt_lapics(current);
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current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current,
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2021-02-12 00:43:20 +01:00
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FCH_IOAPIC_ID, IO_APIC_ADDR, 0);
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2019-04-22 22:55:16 +02:00
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2020-09-03 01:49:10 +02:00
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current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current,
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2021-02-12 00:43:20 +01:00
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GNB_IOAPIC_ID, GNB_IO_APIC_ADDR, IO_APIC_INTERRUPTS);
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2020-09-03 01:49:10 +02:00
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2021-06-17 15:48:25 +02:00
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/* PIT is connected to legacy IRQ 0, but IOAPIC GSI 2 */
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current,
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MP_BUS_ISA, 0, 2,
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MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT);
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/* SCI IRQ type override */
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current,
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MP_BUS_ISA, 9, 9,
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MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
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2020-01-31 20:53:45 +01:00
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2021-02-11 19:07:11 +01:00
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current = acpi_fill_madt_irqoverride(current);
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2019-04-22 22:55:16 +02:00
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/* create all subtables for processors */
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current,
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2021-06-17 15:48:25 +02:00
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ACPI_MADT_LAPIC_NMI_ALL_PROCESSORS,
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MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH,
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1 /* 1: LINT1 connect to NMI */);
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2019-04-22 22:55:16 +02:00
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return current;
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}
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/*
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* Reference section 5.2.9 Fixed ACPI Description Table (FADT)
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* in the ACPI 3.0b specification.
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*/
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2020-05-30 17:54:39 +02:00
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void acpi_fill_fadt(acpi_fadt_t *fadt)
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2019-04-22 22:55:16 +02:00
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{
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2021-02-11 18:35:32 +01:00
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const struct soc_amd_common_config *cfg = soc_get_common_config();
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2019-12-02 00:49:19 +01:00
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2021-02-04 21:31:49 +01:00
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printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
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2019-04-22 22:55:16 +02:00
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fadt->sci_int = 9; /* IRQ 09 - ACPI SCI */
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2019-08-11 00:22:28 +02:00
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if (permanent_smi_handler()) {
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2019-04-22 22:55:16 +02:00
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fadt->smi_cmd = APM_CNT;
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fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
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fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
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}
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fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
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fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
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fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
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fadt->gpe0_blk = ACPI_GPE0_BLK;
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fadt->pm1_evt_len = 4; /* 32 bits */
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fadt->pm1_cnt_len = 2; /* 16 bits */
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fadt->pm_tmr_len = 4; /* 32 bits */
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fadt->gpe0_blk_len = 8; /* 64 bits */
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fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
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fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
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fadt->duty_offset = 1; /* CLK_VAL bits 3:1 */
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fadt->duty_width = 3; /* CLK_VAL bits 3:1 */
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2021-11-18 20:41:40 +01:00
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fadt->day_alrm = RTC_DATE_ALARM;
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2020-08-12 20:13:35 +02:00
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fadt->mon_alrm = 0;
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2019-12-02 00:49:19 +01:00
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fadt->iapc_boot_arch = cfg->fadt_boot_arch; /* legacy free default */
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2019-04-22 22:55:16 +02:00
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fadt->res2 = 0; /* reserved, MUST be 0 ACPI 3.0 */
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2019-12-02 00:49:19 +01:00
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fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
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ACPI_FADT_C1_SUPPORTED |
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ACPI_FADT_S4_RTC_WAKE |
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ACPI_FADT_32BIT_TIMER |
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ACPI_FADT_PCI_EXPRESS_WAKE |
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ACPI_FADT_PLATFORM_CLOCK |
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ACPI_FADT_S4_RTC_VALID |
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ACPI_FADT_REMOTE_POWER_ON;
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fadt->flags |= cfg->fadt_flags; /* additional board-specific flags */
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2019-04-22 22:55:16 +02:00
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2022-02-16 14:42:19 +01:00
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fadt->ARM_boot_arch = 0; /* Must be zero if ACPI Revision <= 5.0 */
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2019-04-22 22:55:16 +02:00
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fadt->x_firmware_ctl_l = 0; /* set to 0 if firmware_ctrl is used */
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fadt->x_firmware_ctl_h = 0;
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fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1a_evt_blk.bit_width = 32;
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fadt->x_pm1a_evt_blk.bit_offset = 0;
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fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
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fadt->x_pm1a_evt_blk.addrl = ACPI_PM_EVT_BLK;
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fadt->x_pm1a_evt_blk.addrh = 0x0;
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fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm1a_cnt_blk.bit_width = 16;
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fadt->x_pm1a_cnt_blk.bit_offset = 0;
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2020-02-28 10:19:41 +01:00
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fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
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2019-04-22 22:55:16 +02:00
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fadt->x_pm1a_cnt_blk.addrl = ACPI_PM1_CNT_BLK;
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fadt->x_pm1a_cnt_blk.addrh = 0x0;
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fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_pm_tmr_blk.bit_width = 32;
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fadt->x_pm_tmr_blk.bit_offset = 0;
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fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
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fadt->x_pm_tmr_blk.addrl = ACPI_PM_TMR_BLK;
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fadt->x_pm_tmr_blk.addrh = 0x0;
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fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */
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fadt->x_gpe0_blk.bit_offset = 0;
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2020-06-21 20:47:54 +02:00
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fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
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2019-04-22 22:55:16 +02:00
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fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK;
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fadt->x_gpe0_blk.addrh = 0x0;
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}
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2020-09-14 14:22:47 +02:00
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static uint32_t get_pstate_core_freq(msr_t pstate_def)
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2019-04-22 22:55:16 +02:00
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{
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2020-09-14 14:22:47 +02:00
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uint32_t core_freq, core_freq_mul, core_freq_div;
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bool valid_freq_divisor;
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/* Core frequency multiplier */
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core_freq_mul = pstate_def.lo & PSTATE_DEF_LO_FREQ_MUL_MASK;
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/* Core frequency divisor ID */
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core_freq_div =
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(pstate_def.lo & PSTATE_DEF_LO_FREQ_DIV_MASK) >> PSTATE_DEF_LO_FREQ_DIV_SHIFT;
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if (core_freq_div == 0) {
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return 0;
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} else if ((core_freq_div >= PSTATE_DEF_LO_FREQ_DIV_MIN)
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&& (core_freq_div <= PSTATE_DEF_LO_EIGHTH_STEP_MAX)) {
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/* Allow 1/8 integer steps for this range */
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valid_freq_divisor = 1;
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} else if ((core_freq_div > PSTATE_DEF_LO_EIGHTH_STEP_MAX)
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&& (core_freq_div <= PSTATE_DEF_LO_FREQ_DIV_MAX) && !(core_freq_div & 0x1)) {
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/* Only allow 1/4 integer steps for this range */
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valid_freq_divisor = 1;
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} else {
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valid_freq_divisor = 0;
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}
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2019-04-22 22:55:16 +02:00
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2020-09-14 14:22:47 +02:00
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if (valid_freq_divisor) {
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/* 25 * core_freq_mul / (core_freq_div / 8) */
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core_freq =
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((PSTATE_DEF_LO_CORE_FREQ_BASE * core_freq_mul * 8) / (core_freq_div));
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} else {
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printk(BIOS_WARNING, "Undefined core_freq_div %x used. Force to 1.\n",
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core_freq_div);
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core_freq = (PSTATE_DEF_LO_CORE_FREQ_BASE * core_freq_mul);
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}
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return core_freq;
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}
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static uint32_t get_pstate_core_power(msr_t pstate_def)
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{
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uint32_t voltage_in_uvolts, core_vid, current_value_amps, current_divisor, power_in_mw;
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/* Core voltage ID */
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core_vid =
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(pstate_def.lo & PSTATE_DEF_LO_CORE_VID_MASK) >> PSTATE_DEF_LO_CORE_VID_SHIFT;
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/* Current value in amps */
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current_value_amps =
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(pstate_def.lo & PSTATE_DEF_LO_CUR_VAL_MASK) >> PSTATE_DEF_LO_CUR_VAL_SHIFT;
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/* Current divisor */
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current_divisor =
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(pstate_def.lo & PSTATE_DEF_LO_CUR_DIV_MASK) >> PSTATE_DEF_LO_CUR_DIV_SHIFT;
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/* Voltage */
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if ((core_vid >= 0xF8) && (core_vid <= 0xFF)) {
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/* Voltage off for VID codes 0xF8 to 0xFF */
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voltage_in_uvolts = 0;
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} else {
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voltage_in_uvolts =
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SERIAL_VID_MAX_MICROVOLTS - (SERIAL_VID_DECODE_MICROVOLTS * core_vid);
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}
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2019-04-22 22:55:16 +02:00
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2020-09-14 14:22:47 +02:00
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/* Power in mW */
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power_in_mw = (voltage_in_uvolts) / 1000 * current_value_amps;
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switch (current_divisor) {
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case 0:
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break;
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case 1:
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power_in_mw = power_in_mw / 10L;
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break;
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case 2:
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power_in_mw = power_in_mw / 100L;
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break;
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case 3:
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/* current_divisor is set to an undefined value.*/
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printk(BIOS_WARNING, "Undefined current_divisor set for enabled P-state .\n");
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power_in_mw = 0;
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break;
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}
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return power_in_mw;
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}
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/*
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* Populate structure describing enabled p-states and return count of enabled p-states.
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*/
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static size_t get_pstate_info(struct acpi_sw_pstate *pstate_values,
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struct acpi_xpss_sw_pstate *pstate_xpss_values)
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{
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msr_t pstate_def;
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size_t pstate_count, pstate;
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uint32_t pstate_enable, max_pstate;
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pstate_count = 0;
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max_pstate = (rdmsr(PS_LIM_REG).lo & PS_LIM_MAX_VAL_MASK) >> PS_MAX_VAL_SHFT;
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for (pstate = 0; pstate <= max_pstate; pstate++) {
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pstate_def = rdmsr(PSTATE_0_MSR + pstate);
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pstate_enable = (pstate_def.hi & PSTATE_DEF_HI_ENABLE_MASK)
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>> PSTATE_DEF_HI_ENABLE_SHIFT;
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if (!pstate_enable)
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continue;
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pstate_values[pstate_count].core_freq = get_pstate_core_freq(pstate_def);
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pstate_values[pstate_count].power = get_pstate_core_power(pstate_def);
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pstate_values[pstate_count].transition_latency = 0;
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pstate_values[pstate_count].bus_master_latency = 0;
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pstate_values[pstate_count].control_value = pstate;
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pstate_values[pstate_count].status_value = pstate;
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pstate_xpss_values[pstate_count].core_freq =
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(uint64_t)pstate_values[pstate_count].core_freq;
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pstate_xpss_values[pstate_count].power =
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(uint64_t)pstate_values[pstate_count].power;
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pstate_xpss_values[pstate_count].transition_latency = 0;
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pstate_xpss_values[pstate_count].bus_master_latency = 0;
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pstate_xpss_values[pstate_count].control_value = (uint64_t)pstate;
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pstate_xpss_values[pstate_count].status_value = (uint64_t)pstate;
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pstate_count++;
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}
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return pstate_count;
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}
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void generate_cpu_entries(const struct device *device)
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{
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int logical_cores;
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size_t pstate_count, cpu, proc_blk_len;
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struct acpi_sw_pstate pstate_values[MAX_PSTATES] = { {0} };
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struct acpi_xpss_sw_pstate pstate_xpss_values[MAX_PSTATES] = { {0} };
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uint32_t threads_per_core, proc_blk_addr;
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uint32_t cstate_base_address =
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rdmsr(MSR_CSTATE_ADDRESS).lo & MSR_CSTATE_ADDRESS_MASK;
|
|
|
|
|
|
|
|
const acpi_addr_t perf_ctrl = {
|
|
|
|
.space_id = ACPI_ADDRESS_SPACE_FIXED,
|
|
|
|
.bit_width = 64,
|
|
|
|
.addrl = PS_CTL_REG,
|
|
|
|
};
|
|
|
|
const acpi_addr_t perf_sts = {
|
|
|
|
.space_id = ACPI_ADDRESS_SPACE_FIXED,
|
|
|
|
.bit_width = 64,
|
|
|
|
.addrl = PS_STS_REG,
|
|
|
|
};
|
|
|
|
|
2021-10-17 12:59:43 +02:00
|
|
|
const acpi_cstate_t cstate_info[] = {
|
2020-09-14 14:22:47 +02:00
|
|
|
[0] = {
|
|
|
|
.ctype = 1,
|
|
|
|
.latency = 1,
|
|
|
|
.power = 0,
|
|
|
|
.resource = {
|
|
|
|
.space_id = ACPI_ADDRESS_SPACE_FIXED,
|
|
|
|
.bit_width = 2,
|
|
|
|
.bit_offset = 2,
|
|
|
|
.addrl = 0,
|
|
|
|
.addrh = 0,
|
|
|
|
},
|
|
|
|
},
|
|
|
|
[1] = {
|
|
|
|
.ctype = 2,
|
|
|
|
.latency = 400,
|
|
|
|
.power = 0,
|
|
|
|
.resource = {
|
|
|
|
.space_id = ACPI_ADDRESS_SPACE_IO,
|
|
|
|
.bit_width = 8,
|
|
|
|
.bit_offset = 0,
|
|
|
|
.addrl = cstate_base_address + 1,
|
|
|
|
.addrh = 0,
|
|
|
|
.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS,
|
|
|
|
},
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2022-01-25 04:14:05 +01:00
|
|
|
threads_per_core = get_threads_per_core();
|
2020-09-14 14:22:47 +02:00
|
|
|
pstate_count = get_pstate_info(pstate_values, pstate_xpss_values);
|
|
|
|
logical_cores = get_cpu_count();
|
|
|
|
|
|
|
|
for (cpu = 0; cpu < logical_cores; cpu++) {
|
|
|
|
|
|
|
|
if (cpu == 0) {
|
|
|
|
/* BSP values for \_SB.Pxxx */
|
|
|
|
proc_blk_len = 6;
|
|
|
|
proc_blk_addr = ACPI_GPE0_BLK;
|
|
|
|
} else {
|
|
|
|
/* AP values for \_SB.Pxxx */
|
|
|
|
proc_blk_addr = 0;
|
|
|
|
proc_blk_len = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
acpigen_write_processor(cpu, proc_blk_addr, proc_blk_len);
|
|
|
|
|
|
|
|
acpigen_write_pct_package(&perf_ctrl, &perf_sts);
|
|
|
|
|
|
|
|
acpigen_write_pss_object(pstate_values, pstate_count);
|
|
|
|
|
|
|
|
acpigen_write_xpss_object(pstate_xpss_values, pstate_count);
|
|
|
|
|
|
|
|
if (CONFIG(ACPI_SSDT_PSD_INDEPENDENT))
|
|
|
|
acpigen_write_PSD_package(cpu / threads_per_core, threads_per_core,
|
|
|
|
HW_ALL);
|
|
|
|
else
|
|
|
|
acpigen_write_PSD_package(0, logical_cores, SW_ALL);
|
|
|
|
|
|
|
|
acpigen_write_PPC(0);
|
|
|
|
|
|
|
|
acpigen_write_CST_package(cstate_info, ARRAY_SIZE(cstate_info));
|
|
|
|
|
2021-03-30 02:04:02 +02:00
|
|
|
acpigen_write_CSD_package(cpu / threads_per_core, threads_per_core,
|
|
|
|
CSD_HW_ALL, 0);
|
2019-04-22 22:55:16 +02:00
|
|
|
|
|
|
|
acpigen_pop_len();
|
|
|
|
}
|
2021-01-27 19:22:33 +01:00
|
|
|
|
2022-03-02 15:00:59 +01:00
|
|
|
acpigen_write_processor_package("PPKG", 0, logical_cores);
|
2019-04-22 22:55:16 +02:00
|
|
|
}
|