Unverified Commit a9ed446c authored by Xi Pardee's avatar Xi Pardee Committed by Ilpo Järvinen
Browse files

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



Enable Wildcat 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/20251105215020.1984036-2-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 bc977e5d

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

+2 −0
Original line number Diff line number Diff line
@@ -304,6 +304,8 @@ enum ppfear_regs { 
/* Wildcat Lake */

#define WCL_PMC_LTR_RESERVED			0x1B64

#define WCL_PCD_PMC_MMIO_REG_LEN		0x3178

#define WCL_NUM_S0IX_BLOCKER			94

#define WCL_BLK_REQ_OFFSET			50



/* SSRAM PMC Device ID */

/* LNL */

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

+18 −0
Original line number Diff line number Diff line
@@ -11,6 +11,9 @@ 


#include "core.h"



/* PMC SSRAM PMT Telemetry GUIDS */

#define PCDN_LPM_REQ_GUID 0x33747648



static const struct pmc_bit_map wcl_pcdn_pfear_map[] = {

	{"PMC_0",               BIT(0)},

	{"FUSE_OSSE",           BIT(1)},
@@ -453,6 +456,17 @@ static const struct pmc_reg_map wcl_pcdn_reg_map = { 
	.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,

	.s0ix_blocker_maps = wcl_pcdn_blk_maps,

	.s0ix_blocker_offset = LNL_S0IX_BLOCKER_OFFSET,

	.num_s0ix_blocker = WCL_NUM_S0IX_BLOCKER,

	.blocker_req_offset = WCL_BLK_REQ_OFFSET,

	.lpm_req_guid = PCDN_LPM_REQ_GUID,

};



static struct pmc_info wcl_pmc_info_list[] = {

	{

		.devid	= PMC_DEVID_WCL_PCDN,

		.map	= &wcl_pcdn_reg_map,

	},

	{}

};



#define WCL_NPU_PCI_DEV                0xfd3e
@@ -479,8 +493,12 @@ static int wcl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_in 
}



struct pmc_dev_info wcl_pmc_dev = {

	.pci_func = 2,

	.regmap_list = wcl_pmc_info_list,

	.map = &wcl_pcdn_reg_map,

	.sub_req_show = &pmc_core_substate_blk_req_fops,

	.suspend = cnl_suspend,

	.resume = wcl_resume,

	.init = wcl_core_init,

	.sub_req = pmc_core_pmt_get_blk_sub_req,

};