diff options
Diffstat (limited to 'drivers/platform/x86/amd/pmc/pmc.c')
| -rw-r--r-- | drivers/platform/x86/amd/pmc/pmc.c | 113 |
1 files changed, 16 insertions, 97 deletions
diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c index e6124498b195..d789d6cab794 100644 --- a/drivers/platform/x86/amd/pmc/pmc.c +++ b/drivers/platform/x86/amd/pmc/pmc.c @@ -32,70 +32,6 @@ #include "pmc.h" -/* SMU communication registers */ -#define AMD_PMC_REGISTER_RESPONSE 0x980 -#define AMD_PMC_REGISTER_ARGUMENT 0x9BC - -/* PMC Scratch Registers */ -#define AMD_PMC_SCRATCH_REG_CZN 0x94 -#define AMD_PMC_SCRATCH_REG_YC 0xD14 -#define AMD_PMC_SCRATCH_REG_1AH 0xF14 - -/* STB Registers */ -#define AMD_PMC_STB_S2IDLE_PREPARE 0xC6000001 -#define AMD_PMC_STB_S2IDLE_RESTORE 0xC6000002 -#define AMD_PMC_STB_S2IDLE_CHECK 0xC6000003 - -/* Base address of SMU for mapping physical address to virtual address */ -#define AMD_PMC_MAPPING_SIZE 0x01000 -#define AMD_PMC_BASE_ADDR_OFFSET 0x10000 -#define AMD_PMC_BASE_ADDR_LO 0x13B102E8 -#define AMD_PMC_BASE_ADDR_HI 0x13B102EC -#define AMD_PMC_BASE_ADDR_LO_MASK GENMASK(15, 0) -#define AMD_PMC_BASE_ADDR_HI_MASK GENMASK(31, 20) - -/* SMU Response Codes */ -#define AMD_PMC_RESULT_OK 0x01 -#define AMD_PMC_RESULT_CMD_REJECT_BUSY 0xFC -#define AMD_PMC_RESULT_CMD_REJECT_PREREQ 0xFD -#define AMD_PMC_RESULT_CMD_UNKNOWN 0xFE -#define AMD_PMC_RESULT_FAILED 0xFF - -/* FCH SSC Registers */ -#define FCH_S0I3_ENTRY_TIME_L_OFFSET 0x30 -#define FCH_S0I3_ENTRY_TIME_H_OFFSET 0x34 -#define FCH_S0I3_EXIT_TIME_L_OFFSET 0x38 -#define FCH_S0I3_EXIT_TIME_H_OFFSET 0x3C -#define FCH_SSC_MAPPING_SIZE 0x800 -#define FCH_BASE_PHY_ADDR_LOW 0xFED81100 -#define FCH_BASE_PHY_ADDR_HIGH 0x00000000 - -/* SMU Message Definations */ -#define SMU_MSG_GETSMUVERSION 0x02 -#define SMU_MSG_LOG_GETDRAM_ADDR_HI 0x04 -#define SMU_MSG_LOG_GETDRAM_ADDR_LO 0x05 -#define SMU_MSG_LOG_START 0x06 -#define SMU_MSG_LOG_RESET 0x07 -#define SMU_MSG_LOG_DUMP_DATA 0x08 -#define SMU_MSG_GET_SUP_CONSTRAINTS 0x09 - -#define PMC_MSG_DELAY_MIN_US 50 -#define RESPONSE_REGISTER_LOOP_MAX 20000 - -#define DELAY_MIN_US 2000 -#define DELAY_MAX_US 3000 - -enum amd_pmc_def { - MSG_TEST = 0x01, - MSG_OS_HINT_PCO, - MSG_OS_HINT_RN, -}; - -struct amd_pmc_bit_map { - const char *name; - u32 bit_mask; -}; - static const struct amd_pmc_bit_map soc15_ip_blk_v2[] = { {"DISPLAY", BIT(0)}, {"CPU", BIT(1)}, @@ -165,23 +101,6 @@ static inline void amd_pmc_reg_write(struct amd_pmc_dev *dev, int reg_offset, u3 iowrite32(val, dev->regbase + reg_offset); } -struct smu_metrics { - u32 table_version; - u32 hint_count; - u32 s0i3_last_entry_status; - u32 timein_s0i2; - u64 timeentering_s0i3_lastcapture; - u64 timeentering_s0i3_totaltime; - u64 timeto_resume_to_os_lastcapture; - u64 timeto_resume_to_os_totaltime; - u64 timein_s0i3_lastcapture; - u64 timein_s0i3_totaltime; - u64 timein_swdrips_lastcapture; - u64 timein_swdrips_totaltime; - u64 timecondition_notmet_lastcapture[32]; - u64 timecondition_notmet_totaltime[32]; -} __packed; - static void amd_pmc_get_ip_info(struct amd_pmc_dev *dev) { switch (dev->cpu_id) { @@ -247,11 +166,12 @@ static int amd_pmc_setup_smu_logging(struct amd_pmc_dev *dev) static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table) { - if (!pdev->smu_virt_addr) { - int ret = amd_pmc_setup_smu_logging(pdev); + int rc; - if (ret) - return ret; + if (!pdev->smu_virt_addr) { + rc = amd_pmc_setup_smu_logging(pdev); + if (rc) + return rc; } if (pdev->cpu_id == AMD_CPU_ID_PCO) @@ -300,10 +220,10 @@ static ssize_t smu_fw_version_show(struct device *d, struct device_attribute *at char *buf) { struct amd_pmc_dev *dev = dev_get_drvdata(d); + int rc; if (!dev->major) { - int rc = amd_pmc_get_smu_version(dev); - + rc = amd_pmc_get_smu_version(dev); if (rc) return rc; } @@ -314,10 +234,10 @@ static ssize_t smu_program_show(struct device *d, struct device_attribute *attr, char *buf) { struct amd_pmc_dev *dev = dev_get_drvdata(d); + int rc; if (!dev->major) { - int rc = amd_pmc_get_smu_version(dev); - + rc = amd_pmc_get_smu_version(dev); if (rc) return rc; } @@ -778,14 +698,14 @@ static struct acpi_s2idle_dev_ops amd_pmc_s2idle_dev_ops = { static int amd_pmc_suspend_handler(struct device *dev) { struct amd_pmc_dev *pdev = dev_get_drvdata(dev); + int rc; /* * Must be called only from the same set of dev_pm_ops handlers * as i8042_pm_suspend() is called: currently just from .suspend. */ if (pdev->disable_8042_wakeup && !disable_workarounds) { - int rc = amd_pmc_wa_irq1(pdev); - + rc = amd_pmc_wa_irq1(pdev); if (rc) { dev_err(pdev->dev, "failed to adjust keyboard wakeup: %d\n", rc); return rc; @@ -808,6 +728,7 @@ static const struct pci_device_id pmc_pci_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_PCO) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_RV) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SP) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SHP) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M20H_ROOT) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M60H_ROOT) }, { } @@ -823,7 +744,6 @@ static int amd_pmc_probe(struct platform_device *pdev) u32 val; dev->dev = &pdev->dev; - rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0)); if (!rdev || !pci_match_id(pmc_pci_ids, rdev)) { err = -ENODEV; @@ -831,8 +751,7 @@ static int amd_pmc_probe(struct platform_device *pdev) } dev->cpu_id = rdev->device; - - if (dev->cpu_id == AMD_CPU_ID_SP) { + if (dev->cpu_id == AMD_CPU_ID_SP || dev->cpu_id == AMD_CPU_ID_SHP) { dev_warn_once(dev->dev, "S0i3 is not supported on this hardware\n"); err = -ENODEV; goto err_pci_dev_put; @@ -847,7 +766,6 @@ static int amd_pmc_probe(struct platform_device *pdev) } base_addr_lo = val & AMD_PMC_BASE_ADDR_HI_MASK; - err = amd_smn_read(0, AMD_PMC_BASE_ADDR_HI, &val); if (err) { dev_err(dev->dev, "error reading 0x%x\n", AMD_PMC_BASE_ADDR_HI); @@ -865,7 +783,9 @@ static int amd_pmc_probe(struct platform_device *pdev) goto err_pci_dev_put; } - mutex_init(&dev->lock); + err = devm_mutex_init(dev->dev, &dev->lock); + if (err) + goto err_pci_dev_put; /* Get num of IP blocks within the SoC */ amd_pmc_get_ip_info(dev); @@ -904,7 +824,6 @@ static void amd_pmc_remove(struct platform_device *pdev) pci_dev_put(dev->rdev); if (IS_ENABLED(CONFIG_AMD_MP2_STB)) amd_mp2_stb_deinit(dev); - mutex_destroy(&dev->lock); } static const struct acpi_device_id amd_pmc_acpi_ids[] = { |