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// SPDX-License-Identifier: GPL-2.0
/*
* This file contains platform specific structure definitions
* and init function used by Meteor Lake PCH.
*
* Copyright (c) 2022, Intel Corporation.
* All Rights Reserved.
*
*/
#include <linux/pci.h>
#include "core.h"
const struct pmc_reg_map mtl_reg_map = {
.pfear_sts = ext_tgl_pfear_map,
.slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET,
.slp_s0_res_counter_step = TGL_PMC_SLP_S0_RES_COUNTER_STEP,
.ltr_show_sts = adl_ltr_show_map,
.msr_sts = msr_map,
.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
.regmap_length = CNP_PMC_MMIO_REG_LEN,
.ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
.ppfear_buckets = ICL_PPFEAR_NUM_ENTRIES,
.pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET,
.pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT,
.ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
.lpm_num_modes = ADL_LPM_NUM_MODES,
.lpm_num_maps = ADL_LPM_NUM_MAPS,
.lpm_res_counter_step_x2 = TGL_PMC_LPM_RES_COUNTER_STEP_X2,
.etr3_offset = ETR3_OFFSET,
.lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
.lpm_priority_offset = MTL_LPM_PRI_OFFSET,
.lpm_en_offset = MTL_LPM_EN_OFFSET,
.lpm_residency_offset = MTL_LPM_RESIDENCY_OFFSET,
.lpm_sts = adl_lpm_maps,
.lpm_status_offset = MTL_LPM_STATUS_OFFSET,
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
void mtl_core_configure(struct pmc_dev *pmcdev)
{
/* Due to a hardware limitation, the GBE LTR blocks PC10
* when a cable is attached. Tell the PMC to ignore it.
*/
dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
pmc_core_send_ltr_ignore(pmcdev, 3);
}
#define MTL_GNA_PCI_DEV 0x7e4c
#define MTL_IPU_PCI_DEV 0x7d19
#define MTL_VPU_PCI_DEV 0x7d1d
static void mtl_set_device_d3(unsigned int device)
{
struct pci_dev *pcidev;
pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
if (pcidev) {
if (!device_trylock(&pcidev->dev)) {
pci_dev_put(pcidev);
return;
}
if (!pcidev->dev.driver) {
dev_info(&pcidev->dev, "Setting to D3hot\n");
pci_set_power_state(pcidev, PCI_D3hot);
}
device_unlock(&pcidev->dev);
pci_dev_put(pcidev);
}
}
void mtl_core_init(struct pmc_dev *pmcdev)
{
pmcdev->map = &mtl_reg_map;
pmcdev->core_configure = mtl_core_configure;
/*
* Set power state of select devices that do not have drivers to D3
* so that they do not block Package C entry.
*/
mtl_set_device_d3(MTL_GNA_PCI_DEV);
mtl_set_device_d3(MTL_IPU_PCI_DEV);
mtl_set_device_d3(MTL_VPU_PCI_DEV);
}
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