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-rw-r--r--Documentation/hwmon/k10temp17
-rw-r--r--drivers/hwmon/Kconfig2
-rw-r--r--drivers/hwmon/adt7462.c2
-rw-r--r--drivers/hwmon/asus_atk0110.c289
-rw-r--r--drivers/hwmon/coretemp.c16
-rw-r--r--drivers/hwmon/k10temp.c40
-rw-r--r--drivers/hwmon/k8temp.c2
-rw-r--r--drivers/hwmon/sis5595.c2
-rw-r--r--drivers/hwmon/via686a.c2
-rw-r--r--drivers/hwmon/vt8231.c2
10 files changed, 299 insertions, 75 deletions
diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp
index a7a18d453a51..6526eee525a6 100644
--- a/Documentation/hwmon/k10temp
+++ b/Documentation/hwmon/k10temp
@@ -3,8 +3,8 @@ Kernel driver k10temp
Supported chips:
* AMD Family 10h processors:
- Socket F: Quad-Core/Six-Core/Embedded Opteron
- Socket AM2+: Opteron, Phenom (II) X3/X4
+ Socket F: Quad-Core/Six-Core/Embedded Opteron (but see below)
+ Socket AM2+: Quad-Core Opteron, Phenom (II) X3/X4, Athlon X2 (but see below)
Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II
Socket S1G3: Athlon II, Sempron, Turion II
* AMD Family 11h processors:
@@ -36,10 +36,15 @@ Description
This driver permits reading of the internal temperature sensor of AMD
Family 10h and 11h processors.
-All these processors have a sensor, but on older revisions of Family 10h
-processors, the sensor may return inconsistent values (erratum 319). The
-driver will refuse to load on these revisions unless you specify the
-"force=1" module parameter.
+All these processors have a sensor, but on those for Socket F or AM2+,
+the sensor may return inconsistent values (erratum 319). The driver
+will refuse to load on these revisions unless you specify the "force=1"
+module parameter.
+
+Due to technical reasons, the driver can detect only the mainboard's
+socket type, not the processor's actual capabilities. Therefore, if you
+are using an AM3 processor on an AM2+ mainboard, you can safely use the
+"force=1" parameter.
There is one temperature measurement value, available as temp1_input in
sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 07a0f030a3ec..68cf87749a42 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -392,7 +392,7 @@ config SENSORS_GL520SM
config SENSORS_CORETEMP
tristate "Intel Core/Core2/Atom temperature sensor"
- depends on X86 && EXPERIMENTAL
+ depends on X86 && PCI && EXPERIMENTAL
help
If you say yes here you get support for the temperature
sensor inside your CPU. Most of the family 6 CPUs
diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c
index a1a7ef14b519..a31e77c776ae 100644
--- a/drivers/hwmon/adt7462.c
+++ b/drivers/hwmon/adt7462.c
@@ -94,7 +94,7 @@ static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END };
#define ADT7462_PIN24_SHIFT 6
#define ADT7462_PIN26_VOLT_INPUT 0x08
#define ADT7462_PIN25_VOLT_INPUT 0x20
-#define ADT7462_PIN28_SHIFT 6 /* cfg3 */
+#define ADT7462_PIN28_SHIFT 4 /* cfg3 */
#define ADT7462_PIN28_VOLT 0x5
#define ADT7462_REG_ALARM1 0xB8
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 5a3ee00c0e7d..6811346c1c62 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -5,6 +5,7 @@
* See COPYING in the top level directory of the kernel tree.
*/
+#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/hwmon.h>
#include <linux/list.h>
@@ -101,6 +102,11 @@ struct atk_data {
int temperature_count;
int fan_count;
struct list_head sensor_list;
+
+ struct {
+ struct dentry *root;
+ u32 id;
+ } debugfs;
};
@@ -624,6 +630,187 @@ static int atk_read_value(struct atk_sensor_data *sensor, u64 *value)
return err;
}
+#ifdef CONFIG_DEBUG_FS
+static int atk_debugfs_gitm_get(void *p, u64 *val)
+{
+ struct atk_data *data = p;
+ union acpi_object *ret;
+ struct atk_acpi_ret_buffer *buf;
+ int err = 0;
+
+ if (!data->read_handle)
+ return -ENODEV;
+
+ if (!data->debugfs.id)
+ return -EINVAL;
+
+ ret = atk_gitm(data, data->debugfs.id);
+ if (IS_ERR(ret))
+ return PTR_ERR(ret);
+
+ buf = (struct atk_acpi_ret_buffer *)ret->buffer.pointer;
+ if (buf->flags)
+ *val = buf->value;
+ else
+ err = -EIO;
+
+ return err;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(atk_debugfs_gitm,
+ atk_debugfs_gitm_get,
+ NULL,
+ "0x%08llx\n")
+
+static int atk_acpi_print(char *buf, size_t sz, union acpi_object *obj)
+{
+ int ret = 0;
+
+ switch (obj->type) {
+ case ACPI_TYPE_INTEGER:
+ ret = snprintf(buf, sz, "0x%08llx\n", obj->integer.value);
+ break;
+ case ACPI_TYPE_STRING:
+ ret = snprintf(buf, sz, "%s\n", obj->string.pointer);
+ break;
+ }
+
+ return ret;
+}
+
+static void atk_pack_print(char *buf, size_t sz, union acpi_object *pack)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < pack->package.count; i++) {
+ union acpi_object *obj = &pack->package.elements[i];
+
+ ret = atk_acpi_print(buf, sz, obj);
+ if (ret >= sz)
+ break;
+ buf += ret;
+ sz -= ret;
+ }
+}
+
+static int atk_debugfs_ggrp_open(struct inode *inode, struct file *file)
+{
+ struct atk_data *data = inode->i_private;
+ char *buf = NULL;
+ union acpi_object *ret;
+ u8 cls;
+ int i;
+
+ if (!data->enumerate_handle)
+ return -ENODEV;
+ if (!data->debugfs.id)
+ return -EINVAL;
+
+ cls = (data->debugfs.id & 0xff000000) >> 24;
+ ret = atk_ggrp(data, cls);
+ if (IS_ERR(ret))
+ return PTR_ERR(ret);
+
+ for (i = 0; i < ret->package.count; i++) {
+ union acpi_object *pack = &ret->package.elements[i];
+ union acpi_object *id;
+
+ if (pack->type != ACPI_TYPE_PACKAGE)
+ continue;
+ if (!pack->package.count)
+ continue;
+ id = &pack->package.elements[0];
+ if (id->integer.value == data->debugfs.id) {
+ /* Print the package */
+ buf = kzalloc(512, GFP_KERNEL);
+ if (!buf) {
+ ACPI_FREE(ret);
+ return -ENOMEM;
+ }
+ atk_pack_print(buf, 512, pack);
+ break;
+ }
+ }
+ ACPI_FREE(ret);
+
+ if (!buf)
+ return -EINVAL;
+
+ file->private_data = buf;
+
+ return nonseekable_open(inode, file);
+}
+
+static ssize_t atk_debugfs_ggrp_read(struct file *file, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ char *str = file->private_data;
+ size_t len = strlen(str);
+
+ return simple_read_from_buffer(buf, count, pos, str, len);
+}
+
+static int atk_debugfs_ggrp_release(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static const struct file_operations atk_debugfs_ggrp_fops = {
+ .read = atk_debugfs_ggrp_read,
+ .open = atk_debugfs_ggrp_open,
+ .release = atk_debugfs_ggrp_release,
+};
+
+static void atk_debugfs_init(struct atk_data *data)
+{
+ struct dentry *d;
+ struct dentry *f;
+
+ data->debugfs.id = 0;
+
+ d = debugfs_create_dir("asus_atk0110", NULL);
+ if (!d || IS_ERR(d))
+ return;
+
+ f = debugfs_create_x32("id", S_IRUSR | S_IWUSR, d, &data->debugfs.id);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ f = debugfs_create_file("gitm", S_IRUSR, d, data,
+ &atk_debugfs_gitm);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ f = debugfs_create_file("ggrp", S_IRUSR, d, data,
+ &atk_debugfs_ggrp_fops);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ data->debugfs.root = d;
+
+ return;
+cleanup:
+ debugfs_remove_recursive(d);
+}
+
+static void atk_debugfs_cleanup(struct atk_data *data)
+{
+ debugfs_remove_recursive(data->debugfs.root);
+}
+
+#else /* CONFIG_DEBUG_FS */
+
+static void atk_debugfs_init(struct atk_data *data)
+{
+}
+
+static void atk_debugfs_cleanup(struct atk_data *data)
+{
+}
+#endif
+
static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
{
struct device *dev = &data->acpi_dev->dev;
@@ -1047,76 +1234,75 @@ remove:
return err;
}
-static int atk_check_old_if(struct atk_data *data)
+static int atk_probe_if(struct atk_data *data)
{
struct device *dev = &data->acpi_dev->dev;
acpi_handle ret;
acpi_status status;
+ int err = 0;
/* RTMP: read temperature */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_TMP, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rtmp_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_TMP " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rtmp_handle = ret;
/* RVLT: read voltage */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_VLT, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rvlt_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_VLT " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rvlt_handle = ret;
/* RFAN: read fan status */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_FAN, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rfan_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_FAN " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rfan_handle = ret;
-
- return 0;
-}
-
-static int atk_check_new_if(struct atk_data *data)
-{
- struct device *dev = &data->acpi_dev->dev;
- acpi_handle ret;
- acpi_status status;
/* Enumeration */
status = acpi_get_handle(data->atk_handle, METHOD_ENUMERATE, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->enumerate_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_ENUMERATE " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->enumerate_handle = ret;
/* De-multiplexer (read) */
status = acpi_get_handle(data->atk_handle, METHOD_READ, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->read_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_READ " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->read_handle = ret;
/* De-multiplexer (write) */
status = acpi_get_handle(data->atk_handle, METHOD_WRITE, &ret);
- if (status != AE_OK) {
- dev_dbg(dev, "method " METHOD_READ " not found: %s\n",
+ if (ACPI_SUCCESS(status))
+ data->write_handle = ret;
+ else
+ dev_dbg(dev, "method " METHOD_WRITE " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->write_handle = ret;
- return 0;
+ /* Check for hwmon methods: first check "old" style methods; note that
+ * both may be present: in this case we stick to the old interface;
+ * analysis of multiple DSDTs indicates that when both interfaces
+ * are present the new one (GGRP/GITM) is not functional.
+ */
+ if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle)
+ data->old_interface = true;
+ else if (data->enumerate_handle && data->read_handle &&
+ data->write_handle)
+ data->old_interface = false;
+ else
+ err = -ENODEV;
+
+ return err;
}
static int atk_add(struct acpi_device *device)
@@ -1155,28 +1341,19 @@ static int atk_add(struct acpi_device *device)
}
ACPI_FREE(buf.pointer);
- /* Check for hwmon methods: first check "old" style methods; note that
- * both may be present: in this case we stick to the old interface;
- * analysis of multiple DSDTs indicates that when both interfaces
- * are present the new one (GGRP/GITM) is not functional.
- */
- err = atk_check_old_if(data);
- if (!err) {
- dev_dbg(&device->dev, "Using old hwmon interface\n");
- data->old_interface = true;
- } else {
- err = atk_check_new_if(data);
- if (err)
- goto out;
-
- dev_dbg(&device->dev, "Using new hwmon interface\n");
- data->old_interface = false;
+ err = atk_probe_if(data);
+ if (err) {
+ dev_err(&device->dev, "No usable hwmon interface detected\n");
+ goto out;
}
- if (data->old_interface)
+ if (data->old_interface) {
+ dev_dbg(&device->dev, "Using old hwmon interface\n");
err = atk_enumerate_old_hwmon(data);
- else
+ } else {
+ dev_dbg(&device->dev, "Using new hwmon interface\n");
err = atk_enumerate_new_hwmon(data);
+ }
if (err < 0)
goto out;
if (err == 0) {
@@ -1190,6 +1367,8 @@ static int atk_add(struct acpi_device *device)
if (err)
goto cleanup;
+ atk_debugfs_init(data);
+
device->driver_data = data;
return 0;
cleanup:
@@ -1208,6 +1387,8 @@ static int atk_remove(struct acpi_device *device, int type)
device->driver_data = NULL;
+ atk_debugfs_cleanup(data);
+
atk_remove_files(data);
atk_free_sensors(data);
hwmon_device_unregister(data->hwmon_dev);
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index caef39cda8c8..2d7bceeed0bc 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -33,6 +33,7 @@
#include <linux/list.h>
#include <linux/platform_device.h>
#include <linux/cpu.h>
+#include <linux/pci.h>
#include <asm/msr.h>
#include <asm/processor.h>
@@ -161,6 +162,7 @@ static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *
int usemsr_ee = 1;
int err;
u32 eax, edx;
+ struct pci_dev *host_bridge;
/* Early chips have no MSR for TjMax */
@@ -168,11 +170,21 @@ static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *
usemsr_ee = 0;
}
- /* Atoms seems to have TjMax at 90C */
+ /* Atom CPUs */
if (c->x86_model == 0x1c) {
usemsr_ee = 0;
- tjmax = 90000;
+
+ host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+
+ if (host_bridge && host_bridge->vendor == PCI_VENDOR_ID_INTEL
+ && (host_bridge->device == 0xa000 /* NM10 based nettop */
+ || host_bridge->device == 0xa010)) /* NM10 based netbook */
+ tjmax = 100000;
+ else
+ tjmax = 90000;
+
+ pci_dev_put(host_bridge);
}
if ((c->x86_model > 0xe) && (usemsr_ee)) {
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index d8a26d16d948..099a2138cdf6 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -33,6 +33,16 @@ static bool force;
module_param(force, bool, 0444);
MODULE_PARM_DESC(force, "force loading on processors with erratum 319");
+/* CPUID function 0x80000001, ebx */
+#define CPUID_PKGTYPE_MASK 0xf0000000
+#define CPUID_PKGTYPE_F 0x00000000
+#define CPUID_PKGTYPE_AM2R2_AM3 0x10000000
+
+/* DRAM controller (PCI function 2) */
+#define REG_DCT0_CONFIG_HIGH 0x094
+#define DDR3_MODE 0x00000100
+
+/* miscellaneous (PCI function 3) */
#define REG_HARDWARE_THERMAL_CONTROL 0x64
#define HTC_ENABLE 0x00000001
@@ -85,13 +95,28 @@ static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit, NULL, 1);
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-static bool __devinit has_erratum_319(void)
+static bool __devinit has_erratum_319(struct pci_dev *pdev)
{
+ u32 pkg_type, reg_dram_cfg;
+
+ if (boot_cpu_data.x86 != 0x10)
+ return false;
+
/*
- * Erratum 319: The thermal sensor of older Family 10h processors
- * (B steppings) may be unreliable.
+ * Erratum 319: The thermal sensor of Socket F/AM2+ processors
+ * may be unreliable.
*/
- return boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model <= 2;
+ pkg_type = cpuid_ebx(0x80000001) & CPUID_PKGTYPE_MASK;
+ if (pkg_type == CPUID_PKGTYPE_F)
+ return true;
+ if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3)
+ return false;
+
+ /* Differentiate between AM2+ (bad) and AM3 (good) */
+ pci_bus_read_config_dword(pdev->bus,
+ PCI_DEVFN(PCI_SLOT(pdev->devfn), 2),
+ REG_DCT0_CONFIG_HIGH, &reg_dram_cfg);
+ return !(reg_dram_cfg & DDR3_MODE);
}
static int __devinit k10temp_probe(struct pci_dev *pdev,
@@ -99,9 +124,10 @@ static int __devinit k10temp_probe(struct pci_dev *pdev,
{
struct device *hwmon_dev;
u32 reg_caps, reg_htc;
+ int unreliable = has_erratum_319(pdev);
int err;
- if (has_erratum_319() && !force) {
+ if (unreliable && !force) {
dev_err(&pdev->dev,
"unreliable CPU thermal sensor; monitoring disabled\n");
err = -ENODEV;
@@ -139,7 +165,7 @@ static int __devinit k10temp_probe(struct pci_dev *pdev,
}
dev_set_drvdata(&pdev->dev, hwmon_dev);
- if (has_erratum_319() && force)
+ if (unreliable && force)
dev_warn(&pdev->dev,
"unreliable CPU thermal sensor; check erratum 319\n");
return 0;
@@ -169,7 +195,7 @@ static void __devexit k10temp_remove(struct pci_dev *pdev)
dev_set_drvdata(&pdev->dev, NULL);
}
-static struct pci_device_id k10temp_id_table[] = {
+static const struct pci_device_id k10temp_id_table[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) },
{}
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index 1fe995111841..0ceb6d6200a3 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -136,7 +136,7 @@ static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 1, 0);
static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 1, 1);
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-static struct pci_device_id k8temp_ids[] = {
+static const struct pci_device_id k8temp_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
{ 0 },
};
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index 12f2e7086560..79c2931e3008 100644
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -697,7 +697,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev)
return data;
}
-static struct pci_device_id sis5595_pci_ids[] = {
+static const struct pci_device_id sis5595_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
{ 0, }
};
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
index 39e82a492f26..f397ce7ad598 100644
--- a/drivers/hwmon/via686a.c
+++ b/drivers/hwmon/via686a.c
@@ -767,7 +767,7 @@ static struct via686a_data *via686a_update_device(struct device *dev)
return data;
}
-static struct pci_device_id via686a_pci_ids[] = {
+static const struct pci_device_id via686a_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
{ 0, }
};
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c
index 470a1226ba2b..d47b4c9949c2 100644
--- a/drivers/hwmon/vt8231.c
+++ b/drivers/hwmon/vt8231.c
@@ -697,7 +697,7 @@ static struct platform_driver vt8231_driver = {
.remove = __devexit_p(vt8231_remove),
};
-static struct pci_device_id vt8231_pci_ids[] = {
+static const struct pci_device_id vt8231_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) },
{ 0, }
};
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-08 01:09:21 +0000