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platform/x86:intel/pmc: Enable SSRAM support for Panther Lake

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Enable Panther Lake platforms to achieve PMC information from
Intel PMC SSRAM Telemetry driver and substate requirements data
from telemetry region.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://patch.msgid.link/20250910210629.11198-6-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Xi Pardee 2025-09-10 14:06:25 -07:00 committed by Ilpo Järvinen
parent a22bc86438
commit 8e54e493c9
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GPG Key ID: 59AC4F6153E5CE31
2 changed files with 33 additions and 0 deletions
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2
drivers/platform/x86/intel/pmc/core.h
View File

@ -297,6 +297,8 @@ enum ppfear_regs {
#define PTL_PMC_LTR_CUR_ASLT 0x1C28
#define PTL_PMC_LTR_CUR_PLT 0x1C2C
#define PTL_PCD_PMC_MMIO_REG_LEN 0x31A8
#define PTL_NUM_S0IX_BLOCKER 106
#define PTL_BLK_REQ_OFFSET 55
/* Wildcat Lake */
#define WCL_PMC_LTR_RESERVED 0x1B64

31
drivers/platform/x86/intel/pmc/ptl.c
View File

@ -10,6 +10,17 @@
#include "core.h"
/* PMC SSRAM PMT Telemetry GUIDS */
#define PCDP_LPM_REQ_GUID 0x47179370
/*
* Die Mapping to Product.
* Product PCDDie
* PTL-H PCD-H
* PTL-P PCD-P
* PTL-U PCD-P
*/
static const struct pmc_bit_map ptl_pcdp_pfear_map[] = {
{"PMC_0", BIT(0)},
{"FUSE_OSSE", BIT(1)},
@ -515,6 +526,22 @@ static const struct pmc_reg_map ptl_pcdp_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
.s0ix_blocker_maps = ptl_pcdp_blk_maps,
.s0ix_blocker_offset = LNL_S0IX_BLOCKER_OFFSET,
.num_s0ix_blocker = PTL_NUM_S0IX_BLOCKER,
.blocker_req_offset = PTL_BLK_REQ_OFFSET,
};
static struct pmc_info ptl_pmc_info_list[] = {
{
.guid = PCDP_LPM_REQ_GUID,
.devid = PMC_DEVID_PTL_PCDH,
.map = &ptl_pcdp_reg_map,
},
{
.guid = PCDP_LPM_REQ_GUID,
.devid = PMC_DEVID_PTL_PCDP,
.map = &ptl_pcdp_reg_map,
},
{}
};
#define PTL_NPU_PCI_DEV 0xb03e
@ -543,8 +570,12 @@ static int ptl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_in
}
struct pmc_dev_info ptl_pmc_dev = {
.pci_func = 2,
.regmap_list = ptl_pmc_info_list,
.map = &ptl_pcdp_reg_map,
.sub_req_show = &pmc_core_substate_blk_req_fops,
.suspend = cnl_suspend,
.resume = ptl_resume,
.init = ptl_core_init,
.sub_req = pmc_core_pmt_get_blk_sub_req,
};