mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 00:30:52 +07:00
hwmon: (k8temp) update to use new hwmon registration API
Removes: - hwmon_dev from k8temp_data struct, as that is now passed to callbacks, anyway. - other k8temp_data struct fields, too. - k8temp_update_device() Also reduces binary size: text data bss dec hex filename 4139 1448 0 5587 15d3 drivers/hwmon/k8temp.ko.bak 3103 1220 0 4323 10e3 drivers/hwmon/k8temp.ko Signed-off-by: Robert Karszniewicz <avoidr@firemail.cc> Signed-off-by: Robert Karszniewicz <avoidr@riseup.net> Link: https://lore.kernel.org/r/20190721120051.28064-1-avoidr@riseup.net Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Robert Karszniewicz
Guenter Roeck
parent
59eedefbba
commit
3b07a702cc
@ -10,10 +10,8 @@
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/hwmon.h>
|
||||
#include <linux/hwmon-sysfs.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <asm/processor.h>
|
||||
@ -24,108 +22,18 @@
|
||||
#define SEL_CORE 0x04
|
||||
|
||||
struct k8temp_data {
|
||||
struct device *hwmon_dev;
|
||||
struct mutex update_lock;
|
||||
const char *name;
|
||||
char valid; /* zero until following fields are valid */
|
||||
unsigned long last_updated; /* in jiffies */
|
||||
|
||||
/* registers values */
|
||||
u8 sensorsp; /* sensor presence bits - SEL_CORE, SEL_PLACE */
|
||||
u32 temp[2][2]; /* core, place */
|
||||
u8 swap_core_select; /* meaning of SEL_CORE is inverted */
|
||||
u32 temp_offset;
|
||||
};
|
||||
|
||||
static struct k8temp_data *k8temp_update_device(struct device *dev)
|
||||
{
|
||||
struct k8temp_data *data = dev_get_drvdata(dev);
|
||||
struct pci_dev *pdev = to_pci_dev(dev);
|
||||
u8 tmp;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
|
||||
if (!data->valid
|
||||
|| time_after(jiffies, data->last_updated + HZ)) {
|
||||
pci_read_config_byte(pdev, REG_TEMP, &tmp);
|
||||
tmp &= ~(SEL_PLACE | SEL_CORE); /* Select sensor 0, core0 */
|
||||
pci_write_config_byte(pdev, REG_TEMP, tmp);
|
||||
pci_read_config_dword(pdev, REG_TEMP, &data->temp[0][0]);
|
||||
|
||||
if (data->sensorsp & SEL_PLACE) {
|
||||
tmp |= SEL_PLACE; /* Select sensor 1, core0 */
|
||||
pci_write_config_byte(pdev, REG_TEMP, tmp);
|
||||
pci_read_config_dword(pdev, REG_TEMP,
|
||||
&data->temp[0][1]);
|
||||
}
|
||||
|
||||
if (data->sensorsp & SEL_CORE) {
|
||||
tmp &= ~SEL_PLACE; /* Select sensor 0, core1 */
|
||||
tmp |= SEL_CORE;
|
||||
pci_write_config_byte(pdev, REG_TEMP, tmp);
|
||||
pci_read_config_dword(pdev, REG_TEMP,
|
||||
&data->temp[1][0]);
|
||||
|
||||
if (data->sensorsp & SEL_PLACE) {
|
||||
tmp |= SEL_PLACE; /* Select sensor 1, core1 */
|
||||
pci_write_config_byte(pdev, REG_TEMP, tmp);
|
||||
pci_read_config_dword(pdev, REG_TEMP,
|
||||
&data->temp[1][1]);
|
||||
}
|
||||
}
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
|
||||
mutex_unlock(&data->update_lock);
|
||||
return data;
|
||||
}
|
||||
|
||||
/*
|
||||
* Sysfs stuff
|
||||
*/
|
||||
|
||||
static ssize_t name_show(struct device *dev, struct device_attribute
|
||||
*devattr, char *buf)
|
||||
{
|
||||
struct k8temp_data *data = dev_get_drvdata(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", data->name);
|
||||
}
|
||||
|
||||
|
||||
static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
|
||||
char *buf)
|
||||
{
|
||||
struct sensor_device_attribute_2 *attr =
|
||||
to_sensor_dev_attr_2(devattr);
|
||||
int core = attr->nr;
|
||||
int place = attr->index;
|
||||
int temp;
|
||||
struct k8temp_data *data = k8temp_update_device(dev);
|
||||
|
||||
if (data->swap_core_select && (data->sensorsp & SEL_CORE))
|
||||
core = core ? 0 : 1;
|
||||
|
||||
temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;
|
||||
|
||||
return sprintf(buf, "%d\n", temp);
|
||||
}
|
||||
|
||||
/* core, place */
|
||||
|
||||
static SENSOR_DEVICE_ATTR_2_RO(temp1_input, temp, 0, 0);
|
||||
static SENSOR_DEVICE_ATTR_2_RO(temp2_input, temp, 0, 1);
|
||||
static SENSOR_DEVICE_ATTR_2_RO(temp3_input, temp, 1, 0);
|
||||
static SENSOR_DEVICE_ATTR_2_RO(temp4_input, temp, 1, 1);
|
||||
static DEVICE_ATTR_RO(name);
|
||||
|
||||
static const struct pci_device_id k8temp_ids[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
|
||||
{ 0 },
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, k8temp_ids);
|
||||
|
||||
static int is_rev_g_desktop(u8 model)
|
||||
@ -159,14 +67,76 @@ static int is_rev_g_desktop(u8 model)
|
||||
return 1;
|
||||
}
|
||||
|
||||
static umode_t
|
||||
k8temp_is_visible(const void *drvdata, enum hwmon_sensor_types type,
|
||||
u32 attr, int channel)
|
||||
{
|
||||
const struct k8temp_data *data = drvdata;
|
||||
|
||||
if ((channel & 1) && !(data->sensorsp & SEL_PLACE))
|
||||
return 0;
|
||||
|
||||
if ((channel & 2) && !(data->sensorsp & SEL_CORE))
|
||||
return 0;
|
||||
|
||||
return 0444;
|
||||
}
|
||||
|
||||
static int
|
||||
k8temp_read(struct device *dev, enum hwmon_sensor_types type,
|
||||
u32 attr, int channel, long *val)
|
||||
{
|
||||
struct k8temp_data *data = dev_get_drvdata(dev);
|
||||
struct pci_dev *pdev = to_pci_dev(dev->parent);
|
||||
int core, place;
|
||||
u32 temp;
|
||||
u8 tmp;
|
||||
|
||||
core = (channel >> 1) & 1;
|
||||
place = channel & 1;
|
||||
|
||||
core ^= data->swap_core_select;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
pci_read_config_byte(pdev, REG_TEMP, &tmp);
|
||||
tmp &= ~(SEL_PLACE | SEL_CORE);
|
||||
if (core)
|
||||
tmp |= SEL_CORE;
|
||||
if (place)
|
||||
tmp |= SEL_PLACE;
|
||||
pci_write_config_byte(pdev, REG_TEMP, tmp);
|
||||
pci_read_config_dword(pdev, REG_TEMP, &temp);
|
||||
mutex_unlock(&data->update_lock);
|
||||
|
||||
*val = TEMP_FROM_REG(temp) + data->temp_offset;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct hwmon_ops k8temp_ops = {
|
||||
.is_visible = k8temp_is_visible,
|
||||
.read = k8temp_read,
|
||||
};
|
||||
|
||||
static const struct hwmon_channel_info *k8temp_info[] = {
|
||||
HWMON_CHANNEL_INFO(temp,
|
||||
HWMON_T_INPUT, HWMON_T_INPUT, HWMON_T_INPUT, HWMON_T_INPUT),
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct hwmon_chip_info k8temp_chip_info = {
|
||||
.ops = &k8temp_ops,
|
||||
.info = k8temp_info,
|
||||
};
|
||||
|
||||
static int k8temp_probe(struct pci_dev *pdev,
|
||||
const struct pci_device_id *id)
|
||||
{
|
||||
int err;
|
||||
u8 scfg;
|
||||
u32 temp;
|
||||
u8 model, stepping;
|
||||
struct k8temp_data *data;
|
||||
struct device *hwmon_dev;
|
||||
|
||||
data = devm_kzalloc(&pdev->dev, sizeof(struct k8temp_data), GFP_KERNEL);
|
||||
if (!data)
|
||||
@ -231,86 +201,21 @@ static int k8temp_probe(struct pci_dev *pdev,
|
||||
data->sensorsp &= ~SEL_CORE;
|
||||
}
|
||||
|
||||
data->name = "k8temp";
|
||||
mutex_init(&data->update_lock);
|
||||
pci_set_drvdata(pdev, data);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
err = device_create_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp1_input.dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
hwmon_dev = devm_hwmon_device_register_with_info(&pdev->dev,
|
||||
"k8temp",
|
||||
data,
|
||||
&k8temp_chip_info,
|
||||
NULL);
|
||||
|
||||
/* sensor can be changed and reports something */
|
||||
if (data->sensorsp & SEL_PLACE) {
|
||||
err = device_create_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp2_input.dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
}
|
||||
|
||||
/* core can be changed and reports something */
|
||||
if (data->sensorsp & SEL_CORE) {
|
||||
err = device_create_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp3_input.dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
if (data->sensorsp & SEL_PLACE) {
|
||||
err = device_create_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp4_input.
|
||||
dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
}
|
||||
}
|
||||
|
||||
err = device_create_file(&pdev->dev, &dev_attr_name);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
|
||||
data->hwmon_dev = hwmon_device_register(&pdev->dev);
|
||||
|
||||
if (IS_ERR(data->hwmon_dev)) {
|
||||
err = PTR_ERR(data->hwmon_dev);
|
||||
goto exit_remove;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
exit_remove:
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp1_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp2_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp3_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp4_input.dev_attr);
|
||||
device_remove_file(&pdev->dev, &dev_attr_name);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void k8temp_remove(struct pci_dev *pdev)
|
||||
{
|
||||
struct k8temp_data *data = pci_get_drvdata(pdev);
|
||||
|
||||
hwmon_device_unregister(data->hwmon_dev);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp1_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp2_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp3_input.dev_attr);
|
||||
device_remove_file(&pdev->dev,
|
||||
&sensor_dev_attr_temp4_input.dev_attr);
|
||||
device_remove_file(&pdev->dev, &dev_attr_name);
|
||||
return PTR_ERR_OR_ZERO(hwmon_dev);
|
||||
}
|
||||
|
||||
static struct pci_driver k8temp_driver = {
|
||||
.name = "k8temp",
|
||||
.id_table = k8temp_ids,
|
||||
.probe = k8temp_probe,
|
||||
.remove = k8temp_remove,
|
||||
};
|
||||
|
||||
module_pci_driver(k8temp_driver);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user