Unverified Commit 8e54e493 authored by Xi Pardee's avatar Xi Pardee Committed by Ilpo Järvinen
Browse files

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



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

Signed-off-by: default avatarXi Pardee <xi.pardee@linux.intel.com>
Link: https://patch.msgid.link/20250910210629.11198-6-xi.pardee@linux.intel.com


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent a22bc864

drivers/platform/x86/intel/pmc/core.h

+2 −0
Original line number Diff line number Diff line
@@ -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

drivers/platform/x86/intel/pmc/ptl.c

+31 −0
Original line number Diff line number Diff line
@@ -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,

};