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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2019-2020 Intel Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <device/mmio.h>
#include <arch/smp/mpspec.h>
#include <cbmem.h>
#include <console/console.h>
#include <device/pci_ops.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 <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 = 1;
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 = 0;
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);
}
static unsigned long soc_fill_dmar(unsigned long current)
{
const 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;
if (igfx_dev && igfx_dev->enabled && gfxvtbar && gfxvten) {
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);
}
const 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);
}
/* TCSS Thunderbolt root ports */
for (unsigned int i = 0; i < MAX_TBT_PCIE_PORT; i++) {
uint64_t tbtbar = MCHBAR64(TBT0BAR + i * 8) & VTBAR_MASK;
bool tbten = MCHBAR32(TBT0BAR + i * 8) & VTBAR_ENABLED;
if (tbtbar && tbten) {
unsigned long tmp = current;
current += acpi_create_dmar_drhd(current, 0, 0, tbtbar);
current += acpi_create_dmar_ds_pci(current, 0, 7, i);
acpi_dmar_drhd_fixup(tmp, current);
}
}
/* Add RMRR entry */
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(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 | DMA_CTRL_PLATFORM_OPT_IN_FLAG, soc_fill_dmar);
current += dmar->header.length;
current = acpi_align_current(current);
acpi_add_table(rsdp, dmar);
return current;
}
void acpi_create_gnvs(struct global_nvs_t *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;
}