/* * ST Thermal Sensor Driver for syscfg based sensors. * Author: Ajit Pal Singh * * Copyright (C) 2003-2014 STMicroelectronics (R&D) Limited * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include #include #include #include "st_thermal.h" /* STiH415 */ #define STIH415_SYSCFG_FRONT(num) ((num - 100) * 4) #define STIH415_SAS_THSENS_CONF STIH415_SYSCFG_FRONT(178) #define STIH415_SAS_THSENS_STATUS STIH415_SYSCFG_FRONT(198) #define STIH415_SYSCFG_MPE(num) ((num - 600) * 4) #define STIH415_MPE_THSENS_CONF STIH415_SYSCFG_MPE(607) #define STIH415_MPE_THSENS_STATUS STIH415_SYSCFG_MPE(667) /* STiH416 */ #define STIH416_SYSCFG_FRONT(num) ((num - 1000) * 4) #define STIH416_SAS_THSENS_CONF STIH416_SYSCFG_FRONT(1552) #define STIH416_SAS_THSENS_STATUS1 STIH416_SYSCFG_FRONT(1554) #define STIH416_SAS_THSENS_STATUS2 STIH416_SYSCFG_FRONT(1594) /* STiD127 */ #define STID127_SYSCFG_CPU(num) ((num - 700) * 4) #define STID127_THSENS_CONF STID127_SYSCFG_CPU(743) #define STID127_THSENS_STATUS STID127_SYSCFG_CPU(767) static const struct reg_field st_415sas_regfields[MAX_REGFIELDS] = { [TEMP_PWR] = REG_FIELD(STIH415_SAS_THSENS_CONF, 9, 9), [DCORRECT] = REG_FIELD(STIH415_SAS_THSENS_CONF, 4, 8), [OVERFLOW] = REG_FIELD(STIH415_SAS_THSENS_STATUS, 8, 8), [DATA] = REG_FIELD(STIH415_SAS_THSENS_STATUS, 10, 16), }; static const struct reg_field st_415mpe_regfields[MAX_REGFIELDS] = { [TEMP_PWR] = REG_FIELD(STIH415_MPE_THSENS_CONF, 8, 8), [DCORRECT] = REG_FIELD(STIH415_MPE_THSENS_CONF, 3, 7), [OVERFLOW] = REG_FIELD(STIH415_MPE_THSENS_STATUS, 9, 9), [DATA] = REG_FIELD(STIH415_MPE_THSENS_STATUS, 11, 18), }; static const struct reg_field st_416sas_regfields[MAX_REGFIELDS] = { [TEMP_PWR] = REG_FIELD(STIH416_SAS_THSENS_CONF, 9, 9), [DCORRECT] = REG_FIELD(STIH416_SAS_THSENS_CONF, 4, 8), [OVERFLOW] = REG_FIELD(STIH416_SAS_THSENS_STATUS1, 8, 8), [DATA] = REG_FIELD(STIH416_SAS_THSENS_STATUS2, 10, 16), }; static const struct reg_field st_127_regfields[MAX_REGFIELDS] = { [TEMP_PWR] = REG_FIELD(STID127_THSENS_CONF, 7, 7), [DCORRECT] = REG_FIELD(STID127_THSENS_CONF, 2, 6), [OVERFLOW] = REG_FIELD(STID127_THSENS_STATUS, 9, 9), [DATA] = REG_FIELD(STID127_THSENS_STATUS, 11, 18), }; /* Private OPs for System Configuration Register based thermal sensors */ static int st_syscfg_power_ctrl(struct st_thermal_sensor *sensor, enum st_thermal_power_state power_state) { return regmap_field_write(sensor->pwr, power_state); } static int st_syscfg_alloc_regfields(struct st_thermal_sensor *sensor) { struct device *dev = sensor->dev; sensor->pwr = devm_regmap_field_alloc(dev, sensor->regmap, sensor->cdata->reg_fields[TEMP_PWR]); if (IS_ERR(sensor->pwr)) { dev_err(dev, "failed to alloc syscfg regfields\n"); return PTR_ERR(sensor->pwr); } return 0; } static int st_syscfg_regmap_init(struct st_thermal_sensor *sensor) { sensor->regmap = syscon_regmap_lookup_by_compatible(sensor->cdata->sys_compat); if (IS_ERR(sensor->regmap)) { dev_err(sensor->dev, "failed to find syscfg regmap\n"); return PTR_ERR(sensor->regmap); } return 0; } static const struct st_thermal_sensor_ops st_syscfg_sensor_ops = { .power_ctrl = st_syscfg_power_ctrl, .alloc_regfields = st_syscfg_alloc_regfields, .regmap_init = st_syscfg_regmap_init, }; /* Compatible device data for stih415 sas thermal sensor */ static const struct st_thermal_compat_data st_415sas_cdata = { .sys_compat = "st,stih415-front-syscfg", .reg_fields = st_415sas_regfields, .ops = &st_syscfg_sensor_ops, .calibration_val = 16, .temp_adjust_val = 20, .crit_temp = 120, }; /* Compatible device data for stih415 mpe thermal sensor */ static const struct st_thermal_compat_data st_415mpe_cdata = { .sys_compat = "st,stih415-system-syscfg", .reg_fields = st_415mpe_regfields, .ops = &st_syscfg_sensor_ops, .calibration_val = 16, .temp_adjust_val = -103, .crit_temp = 120, }; /* Compatible device data for stih416 sas thermal sensor */ static const struct st_thermal_compat_data st_416sas_cdata = { .sys_compat = "st,stih416-front-syscfg", .reg_fields = st_416sas_regfields, .ops = &st_syscfg_sensor_ops, .calibration_val = 16, .temp_adjust_val = 20, .crit_temp = 120, }; /* Compatible device data for stid127 thermal sensor */ static const struct st_thermal_compat_data st_127_cdata = { .sys_compat = "st,stid127-cpu-syscfg", .reg_fields = st_127_regfields, .ops = &st_syscfg_sensor_ops, .calibration_val = 8, .temp_adjust_val = -103, .crit_temp = 120, }; static const struct of_device_id st_syscfg_thermal_of_match[] = { { .compatible = "st,stih415-sas-thermal", .data = &st_415sas_cdata }, { .compatible = "st,stih415-mpe-thermal", .data = &st_415mpe_cdata }, { .compatible = "st,stih416-sas-thermal", .data = &st_416sas_cdata }, { .compatible = "st,stid127-thermal", .data = &st_127_cdata }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, st_syscfg_thermal_of_match); static int st_syscfg_probe(struct platform_device *pdev) { return st_thermal_register(pdev, st_syscfg_thermal_of_match); } static int st_syscfg_remove(struct platform_device *pdev) { return st_thermal_unregister(pdev); } static struct platform_driver st_syscfg_thermal_driver = { .driver = { .name = "st_syscfg_thermal", .pm = &st_thermal_pm_ops, .of_match_table = st_syscfg_thermal_of_match, }, .probe = st_syscfg_probe, .remove = st_syscfg_remove, }; module_platform_driver(st_syscfg_thermal_driver); MODULE_AUTHOR("STMicroelectronics (R&D) Limited "); MODULE_DESCRIPTION("STMicroelectronics STi SoC Thermal Sensor Driver"); MODULE_LICENSE("GPL v2"); matic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/net/geneve.h')