diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/cppc_acpi.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/fan.h | 9 | ||||
| -rw-r--r-- | drivers/acpi/fan_core.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/fan_hwmon.c | 170 | ||||
| -rw-r--r-- | drivers/acpi/x86/lpss.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/x86/utils.c | 44 |
7 files changed, 211 insertions, 25 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 39ea5cfa8326..61ca4afe83dc 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -77,6 +77,7 @@ obj-$(CONFIG_ACPI_TINY_POWER_BUTTON) += tiny-power-button.o obj-$(CONFIG_ACPI_FAN) += fan.o fan-objs := fan_core.o fan-objs += fan_attr.o +fan-$(CONFIG_HWMON) += fan_hwmon.o obj-$(CONFIG_ACPI_VIDEO) += video.o obj-$(CONFIG_ACPI_TAD) += acpi_tad.o diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 1d857978f5f4..dd3d3082c8c7 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -160,6 +160,7 @@ show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, highest_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_nonlinear_perf); +show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, guaranteed_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_freq); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_freq); @@ -196,6 +197,7 @@ static struct attribute *cppc_attrs[] = { &highest_perf.attr, &lowest_perf.attr, &lowest_nonlinear_perf.attr, + &guaranteed_perf.attr, &nominal_perf.attr, &nominal_freq.attr, &lowest_freq.attr, @@ -1837,7 +1839,7 @@ static void cppc_find_dmi_mhz(const struct dmi_header *dm, void *private) dm->length >= DMI_ENTRY_PROCESSOR_MIN_LENGTH) { u16 val = (u16)get_unaligned((const u16 *) (dmi_data + DMI_PROCESSOR_MAX_SPEED)); - *mhz = val > *mhz ? val : *mhz; + *mhz = umax(val, *mhz); } } diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h index f89d19c922dc..db25a3898af7 100644 --- a/drivers/acpi/fan.h +++ b/drivers/acpi/fan.h @@ -10,6 +10,8 @@ #ifndef _ACPI_FAN_H_ #define _ACPI_FAN_H_ +#include <linux/kconfig.h> + #define ACPI_FAN_DEVICE_IDS \ {"INT3404", }, /* Fan */ \ {"INTC1044", }, /* Fan for Tiger Lake generation */ \ @@ -57,4 +59,11 @@ struct acpi_fan { int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst); int acpi_fan_create_attributes(struct acpi_device *device); void acpi_fan_delete_attributes(struct acpi_device *device); + +#if IS_REACHABLE(CONFIG_HWMON) +int devm_acpi_fan_create_hwmon(struct acpi_device *device); +#else +static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; }; +#endif + #endif diff --git a/drivers/acpi/fan_core.c b/drivers/acpi/fan_core.c index ff72e4ef8738..7cea4495f19b 100644 --- a/drivers/acpi/fan_core.c +++ b/drivers/acpi/fan_core.c @@ -336,6 +336,10 @@ static int acpi_fan_probe(struct platform_device *pdev) if (result) return result; + result = devm_acpi_fan_create_hwmon(device); + if (result) + return result; + result = acpi_fan_create_attributes(device); if (result) return result; diff --git a/drivers/acpi/fan_hwmon.c b/drivers/acpi/fan_hwmon.c new file mode 100644 index 000000000000..bd0d31a398fa --- /dev/null +++ b/drivers/acpi/fan_hwmon.c @@ -0,0 +1,170 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * hwmon interface for the ACPI Fan driver. + * + * Copyright (C) 2024 Armin Wolf <W_Armin@gmx.de> + */ + +#include <linux/acpi.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/limits.h> +#include <linux/types.h> +#include <linux/units.h> + +#include "fan.h" + +/* Returned when the ACPI fan does not support speed reporting */ +#define FAN_SPEED_UNAVAILABLE U32_MAX +#define FAN_POWER_UNAVAILABLE U32_MAX + +static struct acpi_fan_fps *acpi_fan_get_current_fps(struct acpi_fan *fan, u64 control) +{ + unsigned int i; + + for (i = 0; i < fan->fps_count; i++) { + if (fan->fps[i].control == control) + return &fan->fps[i]; + } + + return NULL; +} + +static umode_t acpi_fan_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct acpi_fan *fan = drvdata; + unsigned int i; + + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + return 0444; + case hwmon_fan_target: + /* + * When in fine grain control mode, not every fan control value + * has an associated fan performance state. + */ + if (fan->fif.fine_grain_ctrl) + return 0; + + return 0444; + default: + return 0; + } + case hwmon_power: + switch (attr) { + case hwmon_power_input: + /* + * When in fine grain control mode, not every fan control value + * has an associated fan performance state. + */ + if (fan->fif.fine_grain_ctrl) + return 0; + + /* + * When all fan performance states contain no valid power data, + * when the associated attribute should not be created. + */ + for (i = 0; i < fan->fps_count; i++) { + if (fan->fps[i].power != FAN_POWER_UNAVAILABLE) + return 0444; + } + + return 0; + default: + return 0; + } + default: + return 0; + } +} + +static int acpi_fan_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, long *val) +{ + struct acpi_device *adev = to_acpi_device(dev->parent); + struct acpi_fan *fan = dev_get_drvdata(dev); + struct acpi_fan_fps *fps; + struct acpi_fan_fst fst; + int ret; + + ret = acpi_fan_get_fst(adev, &fst); + if (ret < 0) + return ret; + + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + if (fst.speed == FAN_SPEED_UNAVAILABLE) + return -ENODEV; + + if (fst.speed > LONG_MAX) + return -EOVERFLOW; + + *val = fst.speed; + return 0; + case hwmon_fan_target: + fps = acpi_fan_get_current_fps(fan, fst.control); + if (!fps) + return -EIO; + + if (fps->speed > LONG_MAX) + return -EOVERFLOW; + + *val = fps->speed; + return 0; + default: + return -EOPNOTSUPP; + } + case hwmon_power: + switch (attr) { + case hwmon_power_input: + fps = acpi_fan_get_current_fps(fan, fst.control); + if (!fps) + return -EIO; + + if (fps->power == FAN_POWER_UNAVAILABLE) + return -ENODEV; + + if (fps->power > LONG_MAX / MICROWATT_PER_MILLIWATT) + return -EOVERFLOW; + + *val = fps->power * MICROWATT_PER_MILLIWATT; + return 0; + default: + return -EOPNOTSUPP; + } + default: + return -EOPNOTSUPP; + } +} + +static const struct hwmon_ops acpi_fan_hwmon_ops = { + .is_visible = acpi_fan_hwmon_is_visible, + .read = acpi_fan_hwmon_read, +}; + +static const struct hwmon_channel_info * const acpi_fan_hwmon_info[] = { + HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT | HWMON_F_TARGET), + HWMON_CHANNEL_INFO(power, HWMON_P_INPUT), + NULL +}; + +static const struct hwmon_chip_info acpi_fan_hwmon_chip_info = { + .ops = &acpi_fan_hwmon_ops, + .info = acpi_fan_hwmon_info, +}; + +int devm_acpi_fan_create_hwmon(struct acpi_device *device) +{ + struct acpi_fan *fan = acpi_driver_data(device); + struct device *hdev; + + hdev = devm_hwmon_device_register_with_info(&device->dev, "acpi_fan", fan, + &acpi_fan_hwmon_chip_info, NULL); + return PTR_ERR_OR_ZERO(hdev); +} diff --git a/drivers/acpi/x86/lpss.c b/drivers/acpi/x86/lpss.c index 148e29c2c526..258440b899a9 100644 --- a/drivers/acpi/x86/lpss.c +++ b/drivers/acpi/x86/lpss.c @@ -338,8 +338,8 @@ static const struct lpss_device_desc bsw_spi_dev_desc = { }; static const struct x86_cpu_id lpss_cpu_ids[] = { - X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, NULL), - X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, NULL), + X86_MATCH_VFM(INTEL_ATOM_SILVERMONT, NULL), + X86_MATCH_VFM(INTEL_ATOM_AIRMONT, NULL), {} }; diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 2fe0934dcd64..ab2b5fa83e1f 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -45,37 +45,37 @@ struct override_status_id { unsigned long long status; }; -#define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \ +#define ENTRY(status, hid, uid, path, cpu_vfm, dmi...) { \ { { hid, }, {} }, \ - { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \ + { X86_MATCH_VFM(cpu_vfm, NULL), {} }, \ { { .matches = dmi }, {} }, \ uid, \ path, \ status, \ } -#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ - ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi) +#define PRESENT_ENTRY_HID(hid, uid, cpu_vfm, dmi...) \ + ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_vfm, dmi) -#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ - ENTRY(0, hid, uid, NULL, cpu_model, dmi) +#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_vfm, dmi...) \ + ENTRY(0, hid, uid, NULL, cpu_vfm, dmi) -#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \ - ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi) +#define PRESENT_ENTRY_PATH(path, cpu_vfm, dmi...) \ + ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_vfm, dmi) -#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \ - ENTRY(0, "", NULL, path, cpu_model, dmi) +#define NOT_PRESENT_ENTRY_PATH(path, cpu_vfm, dmi...) \ + ENTRY(0, "", NULL, path, cpu_vfm, dmi) static const struct override_status_id override_status_ids[] = { /* * Bay / Cherry Trail PWM directly poked by GPU driver in win10, * but Linux uses a separate PWM driver, harmless if not used. */ - PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}), - PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}), + PRESENT_ENTRY_HID("80860F09", "1", INTEL_ATOM_SILVERMONT, {}), + PRESENT_ENTRY_HID("80862288", "1", INTEL_ATOM_AIRMONT, {}), /* The Xiaomi Mi Pad 2 uses PWM2 for touchkeys backlight control */ - PRESENT_ENTRY_HID("80862289", "2", ATOM_AIRMONT, { + PRESENT_ENTRY_HID("80862289", "2", INTEL_ATOM_AIRMONT, { DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), }), @@ -84,18 +84,18 @@ static const struct override_status_id override_status_ids[] = { * The INT0002 device is necessary to clear wakeup interrupt sources * on Cherry Trail devices, without it we get nobody cared IRQ msgs. */ - PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}), + PRESENT_ENTRY_HID("INT0002", "1", INTEL_ATOM_AIRMONT, {}), /* * On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides * the touchscreen ACPI device until a certain time * after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed * *and* _STA has been called at least 3 times since. */ - PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, { + PRESENT_ENTRY_HID("SYNA7500", "1", INTEL_HASWELL_L, { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"), }), - PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, { + PRESENT_ENTRY_HID("SYNA7500", "1", INTEL_HASWELL_L, { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"), }), @@ -104,7 +104,7 @@ static const struct override_status_id override_status_ids[] = { * The Dell XPS 15 9550 has a SMO8110 accelerometer / * HDD freefall sensor which is wrongly marked as not present. */ - PRESENT_ENTRY_HID("SMO8810", "1", SKYLAKE, { + PRESENT_ENTRY_HID("SMO8810", "1", INTEL_SKYLAKE, { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "XPS 15 9550"), }), @@ -121,19 +121,19 @@ static const struct override_status_id override_status_ids[] = { * was copy-pasted from the GPD win, so it has a disabled KIOX000A * node which we should not enable, thus we also check the BIOS date. */ - PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { + PRESENT_ENTRY_HID("KIOX000A", "1", INTEL_ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_MATCH(DMI_BIOS_DATE, "02/21/2017") }), - PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { + PRESENT_ENTRY_HID("KIOX000A", "1", INTEL_ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_MATCH(DMI_BIOS_DATE, "03/20/2017") }), - PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { + PRESENT_ENTRY_HID("KIOX000A", "1", INTEL_ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), @@ -146,7 +146,7 @@ static const struct override_status_id override_status_ids[] = { * method sets a GPIO causing the PCI wifi card to turn off. * See above remark about uniqueness of the DMI match. */ - NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, { + NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", INTEL_ATOM_AIRMONT, { DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), @@ -158,7 +158,7 @@ static const struct override_status_id override_status_ids[] = { * as both ACCL0001 and MAGN0001. As we can only ever register an * i2c client for one of them, ignore MAGN0001. */ - NOT_PRESENT_ENTRY_HID("MAGN0001", "1", ATOM_SILVERMONT, { + NOT_PRESENT_ENTRY_HID("MAGN0001", "1", INTEL_ATOM_SILVERMONT, { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"), }), |