diff options
Diffstat (limited to 'drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c')
| -rw-r--r-- | drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c | 121 |
1 files changed, 112 insertions, 9 deletions
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c index 546b70434004..3a028b78d9af 100644 --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c @@ -9,7 +9,7 @@ #include <linux/pci.h> #include "processor_thermal_device.h" -MODULE_IMPORT_NS(INT340X_THERMAL); +MODULE_IMPORT_NS("INT340X_THERMAL"); struct mmio_reg { int read_only; @@ -19,6 +19,12 @@ struct mmio_reg { u16 shift; }; +struct mapping_table { + const char *attr_name; + const u32 value; + const char *mapped_str; +}; + /* These will represent sysfs attribute names */ static const char * const fivr_strings[] = { "vco_ref_code_lo", @@ -62,6 +68,78 @@ static const struct mmio_reg dlvr_mmio_regs[] = { { 1, 0x15A10, 1, 0x1, 16}, /* dlvr_pll_busy */ }; +static const struct mmio_reg lnl_dlvr_mmio_regs[] = { + { 0, 0x5A08, 5, 0x1F, 0}, /* dlvr_spread_spectrum_pct */ + { 0, 0x5A08, 1, 0x1, 5}, /* dlvr_control_mode */ + { 0, 0x5A08, 1, 0x1, 6}, /* dlvr_control_lock */ + { 0, 0x5A08, 1, 0x1, 7}, /* dlvr_rfim_enable */ + { 0, 0x5A08, 2, 0x3, 8}, /* dlvr_freq_select */ + { 1, 0x5A10, 2, 0x3, 30}, /* dlvr_hardware_rev */ + { 1, 0x5A10, 2, 0x3, 0}, /* dlvr_freq_mhz */ + { 1, 0x5A10, 1, 0x1, 23}, /* dlvr_pll_busy */ +}; + +static const struct mapping_table lnl_dlvr_mapping[] = { + {"dlvr_freq_select", 0, "2227.2"}, + {"dlvr_freq_select", 1, "2140"}, + {"dlvr_freq_mhz", 0, "2227.2"}, + {"dlvr_freq_mhz", 1, "2140"}, + {NULL, 0, NULL}, +}; + +static int match_mapping_table(const struct mapping_table *table, const char *attr_name, + bool match_int_value, const u32 value, const char *value_str, + char **result_str, u32 *result_int) +{ + bool attr_matched = false; + int i = 0; + + if (!table) + return -EOPNOTSUPP; + + while (table[i].attr_name) { + if (strncmp(table[i].attr_name, attr_name, strlen(attr_name))) + goto match_next; + + attr_matched = true; + + if (match_int_value) { + if (table[i].value != value) + goto match_next; + + *result_str = (char *)table[i].mapped_str; + return 0; + } + + if (strncmp(table[i].mapped_str, value_str, strlen(table[i].mapped_str))) + goto match_next; + + *result_int = table[i].value; + + return 0; +match_next: + i++; + } + + /* If attribute name is matched, then the user space value is invalid */ + if (attr_matched) + return -EINVAL; + + return -EOPNOTSUPP; +} + +static int get_mapped_string(const struct mapping_table *table, const char *attr_name, + u32 value, char **result) +{ + return match_mapping_table(table, attr_name, true, value, NULL, result, NULL); +} + +static int get_mapped_value(const struct mapping_table *table, const char *attr_name, + const char *value, unsigned int *result) +{ + return match_mapping_table(table, attr_name, false, 0, value, NULL, result); +} + /* These will represent sysfs attribute names */ static const char * const dvfs_strings[] = { "rfi_restriction_run_busy", @@ -88,17 +166,22 @@ static const struct mmio_reg adl_dvfs_mmio_regs[] = { { 0, 0x5A40, 1, 0x1, 0}, /* rfi_disable */ }; +static const struct mapping_table *dlvr_mapping; +static const struct mmio_reg *dlvr_mmio_regs_table; + #define RFIM_SHOW(suffix, table)\ static ssize_t suffix##_show(struct device *dev,\ struct device_attribute *attr,\ char *buf)\ {\ + const struct mmio_reg *mmio_regs = dlvr_mmio_regs_table;\ + const struct mapping_table *mapping = dlvr_mapping;\ struct proc_thermal_device *proc_priv;\ struct pci_dev *pdev = to_pci_dev(dev);\ - const struct mmio_reg *mmio_regs;\ const char **match_strs;\ + int ret, err;\ u32 reg_val;\ - int ret;\ + char *str;\ \ proc_priv = pci_get_drvdata(pdev);\ if (table == 1) {\ @@ -106,7 +189,6 @@ static ssize_t suffix##_show(struct device *dev,\ mmio_regs = adl_dvfs_mmio_regs;\ } else if (table == 2) { \ match_strs = (const char **)dlvr_strings;\ - mmio_regs = dlvr_mmio_regs;\ } else {\ match_strs = (const char **)fivr_strings;\ mmio_regs = tgl_fivr_mmio_regs;\ @@ -116,7 +198,12 @@ static ssize_t suffix##_show(struct device *dev,\ return ret;\ reg_val = readl((void __iomem *) (proc_priv->mmio_base + mmio_regs[ret].offset));\ ret = (reg_val >> mmio_regs[ret].shift) & mmio_regs[ret].mask;\ - return sprintf(buf, "%u\n", ret);\ + err = get_mapped_string(mapping, attr->attr.name, ret, &str);\ + if (!err)\ + return sprintf(buf, "%s\n", str);\ + if (err == -EOPNOTSUPP)\ + return sprintf(buf, "%u\n", ret);\ + return err;\ } #define RFIM_STORE(suffix, table)\ @@ -124,11 +211,12 @@ static ssize_t suffix##_store(struct device *dev,\ struct device_attribute *attr,\ const char *buf, size_t count)\ {\ + const struct mmio_reg *mmio_regs = dlvr_mmio_regs_table;\ + const struct mapping_table *mapping = dlvr_mapping;\ struct proc_thermal_device *proc_priv;\ struct pci_dev *pdev = to_pci_dev(dev);\ unsigned int input;\ const char **match_strs;\ - const struct mmio_reg *mmio_regs;\ int ret, err;\ u32 reg_val;\ u32 mask;\ @@ -139,7 +227,6 @@ static ssize_t suffix##_store(struct device *dev,\ mmio_regs = adl_dvfs_mmio_regs;\ } else if (table == 2) { \ match_strs = (const char **)dlvr_strings;\ - mmio_regs = dlvr_mmio_regs;\ } else {\ match_strs = (const char **)fivr_strings;\ mmio_regs = tgl_fivr_mmio_regs;\ @@ -150,9 +237,14 @@ static ssize_t suffix##_store(struct device *dev,\ return ret;\ if (mmio_regs[ret].read_only)\ return -EPERM;\ - err = kstrtouint(buf, 10, &input);\ - if (err)\ + err = get_mapped_value(mapping, attr->attr.name, buf, &input);\ + if (err == -EINVAL)\ return err;\ + if (err == -EOPNOTSUPP) {\ + err = kstrtouint(buf, 10, &input);\ + if (err)\ + return err;\ + } \ mask = GENMASK(mmio_regs[ret].shift + mmio_regs[ret].bits - 1, mmio_regs[ret].shift);\ reg_val = readl((void __iomem *) (proc_priv->mmio_base + mmio_regs[ret].offset));\ reg_val &= ~mask;\ @@ -347,6 +439,16 @@ int proc_thermal_rfim_add(struct pci_dev *pdev, struct proc_thermal_device *proc } if (proc_priv->mmio_feature_mask & PROC_THERMAL_FEATURE_DLVR) { + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_LNLM_THERMAL: + case PCI_DEVICE_ID_INTEL_PTL_THERMAL: + dlvr_mmio_regs_table = lnl_dlvr_mmio_regs; + dlvr_mapping = lnl_dlvr_mapping; + break; + default: + dlvr_mmio_regs_table = dlvr_mmio_regs; + break; + } ret = sysfs_create_group(&pdev->dev.kobj, &dlvr_attribute_group); if (ret) return ret; @@ -384,3 +486,4 @@ void proc_thermal_rfim_remove(struct pci_dev *pdev) EXPORT_SYMBOL_GPL(proc_thermal_rfim_remove); MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Processor Thermal RFIM Interface"); |