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/* 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 = 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 = 32;
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;
}
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