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Message-ID: <20240809204648.1124545-8-xi.pardee@linux.intel.com>
Date: Fri, 9 Aug 2024 13:46:36 -0700
From: Xi Pardee <xi.pardee@...ux.intel.com>
To: xi.pardee@...ux.intel.com,
irenic.rajneesh@...il.com,
david.e.box@...ux.intel.com,
hdegoede@...hat.com,
ilpo.jarvinen@...ux.intel.com,
platform-driver-x86@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 7/7] platform/x86:intel/pmc: Get LPM information for available platforms
Add support to find and read the requirements from the telemetry
entries for Meteor Lake, Lunar Lake and Arror Lake platforms.
Signed-off-by: Xi Pardee <xi.pardee@...ux.intel.com>
---
drivers/platform/x86/intel/pmc/arl.c | 16 ++++++++++++++--
drivers/platform/x86/intel/pmc/lnl.c | 10 ++++++++--
drivers/platform/x86/intel/pmc/mtl.c | 17 +++++++++++++++--
3 files changed, 37 insertions(+), 6 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c
index 7a340b8c7b6a..0db16deacf85 100644
--- a/drivers/platform/x86/intel/pmc/arl.c
+++ b/drivers/platform/x86/intel/pmc/arl.c
@@ -11,6 +11,13 @@
#include <linux/pci.h>
#include "core.h"
+/* PMC SSRAM PMT Telemetry GUID */
+#define IOEP_LPM_REQ_GUID 0x5077612
+#define SOCS_LPM_REQ_GUID 0x8478657
+#define PCHS_LPM_REQ_GUID 0x9684572
+
+static const u8 ARL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20};
+
const struct pmc_bit_map arl_socs_ltr_show_map[] = {
{"SOUTHPORT_A", CNP_PMC_LTR_SPA},
{"SOUTHPORT_B", CNP_PMC_LTR_SPB},
@@ -269,6 +276,7 @@ const struct pmc_reg_map arl_socs_reg_map = {
.lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
.lpm_num_maps = ADL_LPM_NUM_MAPS,
+ .lpm_reg_index = ARL_LPM_REG_INDEX,
.etr3_offset = ETR3_OFFSET,
.pson_residency_offset = TGL_PSON_RESIDENCY_OFFSET,
.pson_residency_counter_step = TGL_PSON_RES_COUNTER_STEP,
@@ -637,19 +645,23 @@ const struct pmc_reg_map arl_pchs_reg_map = {
.lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
.lpm_num_maps = ADL_LPM_NUM_MAPS,
+ .lpm_reg_index = ARL_LPM_REG_INDEX,
.etr3_offset = ETR3_OFFSET,
};
static struct pmc_info arl_pmc_info_list[] = {
{
+ .guid = IOEP_LPM_REQ_GUID,
.devid = PMC_DEVID_MTL_IOEP,
.map = &mtl_ioep_reg_map,
},
{
+ .guid = SOCS_LPM_REQ_GUID,
.devid = PMC_DEVID_ARL_SOCS,
.map = &arl_socs_reg_map,
},
{
+ .guid = PCHS_LPM_REQ_GUID,
.devid = PMC_DEVID_ARL_PCHS,
.map = &arl_pchs_reg_map,
},
@@ -679,7 +691,7 @@ static int arl_resume(struct pmc_dev *pmcdev)
int arl_core_init(struct pmc_dev *pmcdev)
{
struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC];
- int ret;
+ int ret, func = 0;
arl_d3_fixup();
pmcdev->suspend = cnl_suspend;
@@ -703,5 +715,5 @@ int arl_core_init(struct pmc_dev *pmcdev)
pmc_core_get_low_power_modes(pmcdev);
pmc_core_punit_pmt_init(pmcdev, ARL_PMT_DMU_GUID);
- return 0;
+ return pmc_core_get_lpm_reqs(pmcdev, func);
}
diff --git a/drivers/platform/x86/intel/pmc/lnl.c b/drivers/platform/x86/intel/pmc/lnl.c
index 109b08d43fc8..66e4d39d0493 100644
--- a/drivers/platform/x86/intel/pmc/lnl.c
+++ b/drivers/platform/x86/intel/pmc/lnl.c
@@ -13,8 +13,13 @@
#include "core.h"
+#define SOCM_LPM_REQ_GUID 0x15099748
+
+static const u8 LNL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20};
+
static struct pmc_info lnl_pmc_info_list[] = {
{
+ .guid = SOCM_LPM_REQ_GUID,
.devid = PMC_DEVID_LNL_SOCM,
.map = &lnl_socm_reg_map,
},
@@ -536,6 +541,7 @@ const struct pmc_reg_map lnl_socm_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
.s0ix_blocker_maps = lnl_blk_maps,
.s0ix_blocker_offset = LNL_S0IX_BLOCKER_OFFSET,
+ .lpm_reg_index = LNL_LPM_REG_INDEX,
};
#define LNL_NPU_PCI_DEV 0x643e
@@ -561,7 +567,7 @@ static int lnl_resume(struct pmc_dev *pmcdev)
int lnl_core_init(struct pmc_dev *pmcdev)
{
- int ret;
+ int ret, func = 2;
struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC];
lnl_d3_fixup();
@@ -586,5 +592,5 @@ int lnl_core_init(struct pmc_dev *pmcdev)
pmc_core_get_low_power_modes(pmcdev);
- return 0;
+ return pmc_core_get_lpm_reqs(pmcdev, func);
}
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index 86f8c2a24825..20bcb1b7029b 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -11,6 +11,13 @@
#include <linux/pci.h>
#include "core.h"
+/* PMC SSRAM PMT Telemetry GUIDS */
+#define SOCP_LPM_REQ_GUID 0x2625030
+#define IOEM_LPM_REQ_GUID 0x4357464
+#define IOEP_LPM_REQ_GUID 0x5077612
+
+static const u8 MTL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20};
+
/*
* Die Mapping to Product.
* Product SOCDie IOEDie PCHDie
@@ -465,6 +472,7 @@ const struct pmc_reg_map mtl_socm_reg_map = {
.lpm_sts = mtl_socm_lpm_maps,
.lpm_status_offset = MTL_LPM_STATUS_OFFSET,
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
+ .lpm_reg_index = MTL_LPM_REG_INDEX,
};
const struct pmc_bit_map mtl_ioep_pfear_map[] = {
@@ -788,6 +796,7 @@ const struct pmc_reg_map mtl_ioep_reg_map = {
.lpm_priority_offset = MTL_LPM_PRI_OFFSET,
.lpm_en_offset = MTL_LPM_EN_OFFSET,
.lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
+ .lpm_reg_index = MTL_LPM_REG_INDEX,
};
const struct pmc_bit_map mtl_ioem_pfear_map[] = {
@@ -934,18 +943,22 @@ const struct pmc_reg_map mtl_ioem_reg_map = {
.lpm_en_offset = MTL_LPM_EN_OFFSET,
.lpm_res_counter_step_x2 = TGL_PMC_LPM_RES_COUNTER_STEP_X2,
.lpm_residency_offset = MTL_LPM_RESIDENCY_OFFSET,
+ .lpm_reg_index = MTL_LPM_REG_INDEX,
};
static struct pmc_info mtl_pmc_info_list[] = {
{
+ .guid = SOCP_LPM_REQ_GUID,
.devid = PMC_DEVID_MTL_SOCM,
.map = &mtl_socm_reg_map,
},
{
+ .guid = IOEP_LPM_REQ_GUID,
.devid = PMC_DEVID_MTL_IOEP,
.map = &mtl_ioep_reg_map,
},
{
+ .guid = IOEM_LPM_REQ_GUID,
.devid = PMC_DEVID_MTL_IOEM,
.map = &mtl_ioem_reg_map
},
@@ -977,7 +990,7 @@ static int mtl_resume(struct pmc_dev *pmcdev)
int mtl_core_init(struct pmc_dev *pmcdev)
{
struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC];
- int ret;
+ int ret, func = 2;
mtl_d3_fixup();
@@ -1002,5 +1015,5 @@ int mtl_core_init(struct pmc_dev *pmcdev)
pmc_core_get_low_power_modes(pmcdev);
pmc_core_punit_pmt_init(pmcdev, MTL_PMT_DMU_GUID);
- return 0;
+ return pmc_core_get_lpm_reqs(pmcdev, func);
}
--
2.43.0
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