diff options
Diffstat (limited to 'drivers/platform/x86/intel/pmc/mtl.c')
| -rw-r--r-- | drivers/platform/x86/intel/pmc/mtl.c | 93 |
1 files changed, 55 insertions, 38 deletions
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index 2204bc666980..c7d15d864039 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 }, {} }; @@ -946,67 +972,58 @@ 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) { mtl_d3_fixup(); + pmc_core_send_ltr_ignore(pmcdev, 3, 0); + return pmc_core_resume_common(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; } - /* Due to a hardware limitation, the GBE LTR blocks PC10 - * when a cable is attached. Tell the PMC to ignore it. - */ - dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n"); - pmc_core_send_ltr_ignore(pmcdev, 3); + 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; } |