| /* 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 <cpu/cpu.h> |
| #include <cpu/x86/smm.h> |
| #include <string.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <intelblocks/acpi.h> |
| #include <soc/acpi.h> |
| #include <soc/cpu.h> |
| #include <soc/nvs.h> |
| #include <soc/soc_util.h> |
| #include <soc/pmc.h> |
| #include <soc/systemagent.h> |
| #include <soc/pci_devs.h> |
| |
| #define CSTATE_RES(address_space, width, offset, address) \ |
| { \ |
| .space_id = address_space, \ |
| .bit_width = width, \ |
| .bit_offset = offset, \ |
| .addrl = address, \ |
| } |
| |
| static const acpi_cstate_t cstate_map[] = { |
| { |
| /* C1 */ |
| .ctype = 1, /* ACPI C1 */ |
| .latency = 2, |
| .power = 1000, |
| .resource = MWAIT_RES(0, 0), |
| }, |
| { |
| .ctype = 2, /* ACPI C2 */ |
| .latency = 10, |
| .power = 10, |
| .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, |
| ACPI_BASE_ADDRESS + 0x14), |
| }, |
| { |
| .ctype = 3, /* ACPI C3 */ |
| .latency = 50, |
| .power = 10, |
| .resource = CSTATE_RES(ACPI_ADDRESS_SPACE_IO, 8, 0, |
| ACPI_BASE_ADDRESS + 0x15), |
| } |
| }; |
| |
| void soc_fill_gnvs(struct global_nvs *gnvs) |
| { |
| /* Top of Low Memory (start of resource allocation) */ |
| gnvs->tolm = (uintptr_t)cbmem_top(); |
| |
| /* MMIO Low/High & TSEG base and length */ |
| gnvs->mmiob = (u32)get_top_of_low_memory(); |
| gnvs->mmiol = (u32)(get_pciebase() - 1); |
| gnvs->mmiohb = (u64)get_top_of_upper_memory(); |
| gnvs->mmiohl = (u64)(((u64)1 << cpu_phys_address_size()) - 1); |
| gnvs->tsegb = (u32)get_tseg_memory(); |
| gnvs->tsegl = (u32)(get_top_of_low_memory() - get_tseg_memory()); |
| } |
| |
| uint32_t soc_read_sci_irq_select(void) |
| { |
| struct device *dev = get_pmc_dev(); |
| |
| if (!dev) |
| return 0; |
| |
| return pci_read_config32(dev, PMC_ACPI_CNT); |
| } |
| |
| const acpi_cstate_t *soc_get_cstate_map(size_t *entries) |
| { |
| *entries = ARRAY_SIZE(cstate_map); |
| return cstate_map; |
| } |
| |
| void soc_fill_fadt(acpi_fadt_t *fadt) |
| { |
| u16 pmbase = get_pmbase(); |
| |
| /* Power Control */ |
| fadt->pm2_cnt_blk = pmbase + PM2_CNT; |
| fadt->pm_tmr_blk = pmbase + PM1_TMR; |
| |
| /* Control Registers - Length */ |
| fadt->pm2_cnt_len = 1; |
| fadt->pm_tmr_len = 4; |
| |
| fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042; |
| |
| /* PM2 Control Registers */ |
| fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; |
| fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8; |
| fadt->x_pm2_cnt_blk.bit_offset = 0; |
| fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; |
| fadt->x_pm2_cnt_blk.addrl = fadt->pm2_cnt_blk; |
| fadt->x_pm2_cnt_blk.addrh = 0x00; |
| |
| /* PM1 Timer Register */ |
| 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 = fadt->pm_tmr_blk; |
| fadt->x_pm_tmr_blk.addrh = 0x00; |
| } |
| |
| static acpi_tstate_t denverton_tss_table[] = { |
| { 100, 1000, 0, 0x00, 0 }, |
| { 88, 875, 0, 0x1e, 0 }, |
| { 75, 750, 0, 0x1c, 0 }, |
| { 63, 625, 0, 0x1a, 0 }, |
| { 50, 500, 0, 0x18, 0 }, |
| { 38, 375, 0, 0x16, 0 }, |
| { 25, 250, 0, 0x14, 0 }, |
| { 13, 125, 0, 0x12, 0 }, |
| }; |
| |
| acpi_tstate_t *soc_get_tss_table(int *entries) |
| { |
| *entries = ARRAY_SIZE(denverton_tss_table); |
| return denverton_tss_table; |
| } |
| |
| void soc_power_states_generation(int core_id, int cores_per_package) |
| { |
| generate_p_state_entries(core_id, cores_per_package); |
| |
| generate_t_state_entries(core_id, cores_per_package); |
| } |
| |
| int soc_madt_sci_irq_polarity(int sci) |
| { |
| if (sci >= 20) |
| return MP_IRQ_POLARITY_LOW; |
| else |
| return MP_IRQ_POLARITY_HIGH; |
| } |
| |
| unsigned long southcluster_write_acpi_tables(const struct device *device, |
| unsigned long current, |
| struct acpi_rsdp *rsdp) |
| { |
| acpi_header_t *ssdt2; |
| |
| current = acpi_write_hpet(device, current, rsdp); |
| current = (ALIGN(current, 16)); |
| |
| ssdt2 = (acpi_header_t *)current; |
| memset(ssdt2, 0, sizeof(acpi_header_t)); |
| acpi_create_serialio_ssdt(ssdt2); |
| if (ssdt2->length) { |
| current += ssdt2->length; |
| acpi_add_table(rsdp, ssdt2); |
| printk(BIOS_DEBUG, "ACPI: * SSDT2 @ %p Length %x\n", ssdt2, |
| ssdt2->length); |
| current = (ALIGN(current, 16)); |
| } else { |
| ssdt2 = NULL; |
| printk(BIOS_DEBUG, "ACPI: * SSDT2 not generated.\n"); |
| } |
| |
| printk(BIOS_DEBUG, "current = %lx\n", current); |
| |
| return current; |
| } |
| |
| __weak void acpi_create_serialio_ssdt(acpi_header_t *ssdt) {} |
| |
| static unsigned long acpi_fill_dmar(unsigned long current) |
| { |
| uint64_t vtbar; |
| unsigned long tmp = current; |
| |
| vtbar = read64((void *)(DEFAULT_MCHBAR + MCH_VTBAR_OFFSET)) & MCH_VTBAR_MASK; |
| printk(BIOS_DEBUG, "DEFVTBAR:0x%llx\n", vtbar); |
| if (!vtbar) |
| return current; |
| |
| current += acpi_create_dmar_drhd(current, |
| DRHD_INCLUDE_PCI_ALL, 0, vtbar); |
| |
| current += acpi_create_dmar_ds_ioapic(current, |
| 2, PCH_IOAPIC_PCI_BUS, PCH_IOAPIC_PCI_SLOT, 0); |
| current += acpi_create_dmar_ds_msi_hpet(current, |
| 0, PCH_HPET_PCI_BUS, PCH_HPET_PCI_SLOT, 0); |
| |
| acpi_dmar_drhd_fixup(tmp, current); |
| |
| /* Create RMRR; see "VTD PLATFORM CONFIGURATION" in FSP log */ |
| tmp = current; |
| current += acpi_create_dmar_rmrr(current, 0, |
| RMRR_USB_BASE_ADDRESS, |
| RMRR_USB_LIMIT_ADDRESS); |
| current += acpi_create_dmar_ds_pci(current, |
| 0, XHCI_DEV, XHCI_FUNC); |
| acpi_dmar_rmrr_fixup(tmp, current); |
| |
| return current; |
| } |
| |
| unsigned long systemagent_write_acpi_tables(const struct device *dev, |
| unsigned long current, |
| struct acpi_rsdp *const rsdp) |
| { |
| /* Create DMAR table only if we have VT-d capability. */ |
| const u32 capid0_a = pci_read_config32(dev, CAPID0_A); |
| if (capid0_a & VTD_DISABLE) |
| return current; |
| |
| acpi_dmar_t *const dmar = (acpi_dmar_t *)current; |
| printk(BIOS_DEBUG, "ACPI: * DMAR\n"); |
| acpi_create_dmar(dmar, DMAR_INTR_REMAP, acpi_fill_dmar); |
| current += dmar->header.length; |
| current = acpi_align_current(current); |
| acpi_add_table(rsdp, dmar); |
| |
| return current; |
| } |