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path: root/drivers/platform/x86/intel/pmc/mtl.c
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Diffstat (limited to 'drivers/platform/x86/intel/pmc/mtl.c')
-rw-r--r--drivers/platform/x86/intel/pmc/mtl.c86
1 files changed, 53 insertions, 33 deletions
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index 504e3e273c..c7d15d8640 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -10,6 +10,14 @@
#include <linux/pci.h>
#include "core.h"
+#include "../pmt/telemetry.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.
@@ -465,6 +473,7 @@ 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[] = {
@@ -782,6 +791,13 @@ const struct pmc_reg_map mtl_ioep_reg_map = {
.ltr_show_sts = mtl_ioep_ltr_show_map,
.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
.ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
+ .lpm_num_maps = ADL_LPM_NUM_MAPS,
+ .lpm_res_counter_step_x2 = TGL_PMC_LPM_RES_COUNTER_STEP_X2,
+ .lpm_residency_offset = MTL_LPM_RESIDENCY_OFFSET,
+ .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[] = {
@@ -922,6 +938,13 @@ const struct pmc_reg_map mtl_ioem_reg_map = {
.ltr_show_sts = mtl_ioep_ltr_show_map,
.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
.ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
+ .lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
+ .lpm_num_maps = ADL_LPM_NUM_MAPS,
+ .lpm_priority_offset = MTL_LPM_PRI_OFFSET,
+ .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,
};
#define PMC_DEVID_SOCM 0x7e7f
@@ -929,16 +952,19 @@ const struct pmc_reg_map mtl_ioem_reg_map = {
#define PMC_DEVID_IOEM 0x7ebf
static struct pmc_info mtl_pmc_info_list[] = {
{
- .devid = PMC_DEVID_SOCM,
- .map = &mtl_socm_reg_map,
+ .guid = SOCP_LPM_REQ_GUID,
+ .devid = PMC_DEVID_SOCM,
+ .map = &mtl_socm_reg_map,
},
{
- .devid = PMC_DEVID_IOEP,
- .map = &mtl_ioep_reg_map,
+ .guid = IOEP_LPM_REQ_GUID,
+ .devid = PMC_DEVID_IOEP,
+ .map = &mtl_ioep_reg_map,
},
{
- .devid = PMC_DEVID_IOEM,
- .map = &mtl_ioem_reg_map
+ .guid = IOEM_LPM_REQ_GUID,
+ .devid = PMC_DEVID_IOEM,
+ .map = &mtl_ioem_reg_map
},
{}
};
@@ -946,34 +972,15 @@ static struct pmc_info mtl_pmc_info_list[] = {
#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);
- }
-}
-
/*
* Set power state of select devices that do not have drivers to D3
* so that they do not block Package C entry.
*/
static void mtl_d3_fixup(void)
{
- mtl_set_device_d3(MTL_GNA_PCI_DEV);
- mtl_set_device_d3(MTL_IPU_PCI_DEV);
- mtl_set_device_d3(MTL_VPU_PCI_DEV);
+ pmc_core_set_device_d3(MTL_GNA_PCI_DEV);
+ pmc_core_set_device_d3(MTL_IPU_PCI_DEV);
+ pmc_core_set_device_d3(MTL_VPU_PCI_DEV);
}
static int mtl_resume(struct pmc_dev *pmcdev)
@@ -987,23 +994,36 @@ 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 = 0;
+ int ret;
+ int func = 2;
+ bool ssram_init = true;
mtl_d3_fixup();
pmcdev->suspend = cnl_suspend;
pmcdev->resume = mtl_resume;
-
pmcdev->regmap_list = mtl_pmc_info_list;
- pmc_core_ssram_init(pmcdev);
- /* If regbase not assigned, set map and discover using legacy method */
- if (!pmc->regbase) {
+ /*
+ * If ssram init fails use legacy method to at least get the
+ * primary PMC
+ */
+ ret = pmc_core_ssram_init(pmcdev, func);
+ if (ret) {
+ ssram_init = false;
+ dev_warn(&pmcdev->pdev->dev,
+ "ssram init failed, %d, using legacy init\n", ret);
pmc->map = &mtl_socm_reg_map;
ret = get_primary_reg_base(pmc);
if (ret)
return ret;
}
+ pmc_core_get_low_power_modes(pmcdev);
+ pmc_core_punit_pmt_init(pmcdev, MTL_PMT_DMU_GUID);
+
+ if (ssram_init)
+ return pmc_core_ssram_get_lpm_reqs(pmcdev);
+
return 0;
}