aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/hwmon/occ/sysfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hwmon/occ/sysfs.c')
-rw-r--r--drivers/hwmon/occ/sysfs.c163
1 files changed, 116 insertions, 47 deletions
diff --git a/drivers/hwmon/occ/sysfs.c b/drivers/hwmon/occ/sysfs.c
index c73be0747e66..2317301fc1e9 100644
--- a/drivers/hwmon/occ/sysfs.c
+++ b/drivers/hwmon/occ/sysfs.c
@@ -6,19 +6,40 @@
#include <linux/export.h>
#include <linux/hwmon-sysfs.h>
#include <linux/kernel.h>
+#include <linux/kstrtox.h>
#include <linux/sysfs.h>
#include "common.h"
/* OCC status register */
#define OCC_STAT_MASTER BIT(7)
-#define OCC_STAT_ACTIVE BIT(0)
/* OCC extended status register */
#define OCC_EXT_STAT_DVFS_OT BIT(7)
#define OCC_EXT_STAT_DVFS_POWER BIT(6)
#define OCC_EXT_STAT_MEM_THROTTLE BIT(5)
#define OCC_EXT_STAT_QUICK_DROP BIT(4)
+#define OCC_EXT_STAT_DVFS_VDD BIT(3)
+#define OCC_EXT_STAT_GPU_THROTTLE GENMASK(2, 0)
+
+static ssize_t occ_active_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int rc;
+ bool active;
+ struct occ *occ = dev_get_drvdata(dev);
+
+ rc = kstrtobool(buf, &active);
+ if (rc)
+ return rc;
+
+ rc = occ_active(occ, active);
+ if (rc)
+ return rc;
+
+ return count;
+}
static ssize_t occ_sysfs_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -29,45 +50,67 @@ static ssize_t occ_sysfs_show(struct device *dev,
struct occ_poll_response_header *header;
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
- rc = occ_update_response(occ);
- if (rc)
- return rc;
+ if (occ->active) {
+ rc = occ_update_response(occ);
+ if (rc)
+ return rc;
- header = (struct occ_poll_response_header *)occ->resp.data;
-
- switch (sattr->index) {
- case 0:
- val = !!(header->status & OCC_STAT_MASTER);
- break;
- case 1:
- val = !!(header->status & OCC_STAT_ACTIVE);
- break;
- case 2:
- val = !!(header->ext_status & OCC_EXT_STAT_DVFS_OT);
- break;
- case 3:
- val = !!(header->ext_status & OCC_EXT_STAT_DVFS_POWER);
- break;
- case 4:
- val = !!(header->ext_status & OCC_EXT_STAT_MEM_THROTTLE);
- break;
- case 5:
- val = !!(header->ext_status & OCC_EXT_STAT_QUICK_DROP);
- break;
- case 6:
- val = header->occ_state;
- break;
- case 7:
- if (header->status & OCC_STAT_MASTER)
- val = hweight8(header->occs_present);
- else
+ header = (struct occ_poll_response_header *)occ->resp.data;
+
+ switch (sattr->index) {
+ case 0:
+ val = !!(header->status & OCC_STAT_MASTER);
+ break;
+ case 1:
val = 1;
- break;
- default:
- return -EINVAL;
+ break;
+ case 2:
+ val = !!(header->ext_status & OCC_EXT_STAT_DVFS_OT);
+ break;
+ case 3:
+ val = !!(header->ext_status & OCC_EXT_STAT_DVFS_POWER);
+ break;
+ case 4:
+ val = !!(header->ext_status &
+ OCC_EXT_STAT_MEM_THROTTLE);
+ break;
+ case 5:
+ val = !!(header->ext_status & OCC_EXT_STAT_QUICK_DROP);
+ break;
+ case 6:
+ val = header->occ_state;
+ break;
+ case 7:
+ if (header->status & OCC_STAT_MASTER)
+ val = hweight8(header->occs_present);
+ else
+ val = 1;
+ break;
+ case 8:
+ val = header->ips_status;
+ break;
+ case 9:
+ val = header->mode;
+ break;
+ case 10:
+ val = !!(header->ext_status & OCC_EXT_STAT_DVFS_VDD);
+ break;
+ case 11:
+ val = header->ext_status & OCC_EXT_STAT_GPU_THROTTLE;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ if (sattr->index == 1)
+ val = 0;
+ else if (sattr->index <= 11)
+ val = -ENODATA;
+ else
+ return -EINVAL;
}
- return snprintf(buf, PAGE_SIZE - 1, "%d\n", val);
+ return sysfs_emit(buf, "%d\n", val);
}
static ssize_t occ_error_show(struct device *dev,
@@ -77,17 +120,22 @@ static ssize_t occ_error_show(struct device *dev,
occ_update_response(occ);
- return snprintf(buf, PAGE_SIZE - 1, "%d\n", occ->error);
+ return sysfs_emit(buf, "%d\n", occ->error);
}
static SENSOR_DEVICE_ATTR(occ_master, 0444, occ_sysfs_show, NULL, 0);
-static SENSOR_DEVICE_ATTR(occ_active, 0444, occ_sysfs_show, NULL, 1);
+static SENSOR_DEVICE_ATTR(occ_active, 0644, occ_sysfs_show, occ_active_store,
+ 1);
static SENSOR_DEVICE_ATTR(occ_dvfs_overtemp, 0444, occ_sysfs_show, NULL, 2);
static SENSOR_DEVICE_ATTR(occ_dvfs_power, 0444, occ_sysfs_show, NULL, 3);
static SENSOR_DEVICE_ATTR(occ_mem_throttle, 0444, occ_sysfs_show, NULL, 4);
static SENSOR_DEVICE_ATTR(occ_quick_pwr_drop, 0444, occ_sysfs_show, NULL, 5);
static SENSOR_DEVICE_ATTR(occ_state, 0444, occ_sysfs_show, NULL, 6);
static SENSOR_DEVICE_ATTR(occs_present, 0444, occ_sysfs_show, NULL, 7);
+static SENSOR_DEVICE_ATTR(occ_ips_status, 0444, occ_sysfs_show, NULL, 8);
+static SENSOR_DEVICE_ATTR(occ_mode, 0444, occ_sysfs_show, NULL, 9);
+static SENSOR_DEVICE_ATTR(occ_dvfs_vdd, 0444, occ_sysfs_show, NULL, 10);
+static SENSOR_DEVICE_ATTR(occ_gpu_throttle, 0444, occ_sysfs_show, NULL, 11);
static DEVICE_ATTR_RO(occ_error);
static struct attribute *occ_attributes[] = {
@@ -99,6 +147,10 @@ static struct attribute *occ_attributes[] = {
&sensor_dev_attr_occ_quick_pwr_drop.dev_attr.attr,
&sensor_dev_attr_occ_state.dev_attr.attr,
&sensor_dev_attr_occs_present.dev_attr.attr,
+ &sensor_dev_attr_occ_ips_status.dev_attr.attr,
+ &sensor_dev_attr_occ_mode.dev_attr.attr,
+ &sensor_dev_attr_occ_dvfs_vdd.dev_attr.attr,
+ &sensor_dev_attr_occ_gpu_throttle.dev_attr.attr,
&dev_attr_occ_error.attr,
NULL
};
@@ -117,7 +169,7 @@ void occ_sysfs_poll_done(struct occ *occ)
* On the first poll response, we haven't yet created the sysfs
* attributes, so don't make any notify calls.
*/
- if (!occ->hwmon)
+ if (!occ->active)
goto done;
if ((header->status & OCC_STAT_MASTER) !=
@@ -126,12 +178,6 @@ void occ_sysfs_poll_done(struct occ *occ)
sysfs_notify(&occ->bus_dev->kobj, NULL, name);
}
- if ((header->status & OCC_STAT_ACTIVE) !=
- (occ->prev_stat & OCC_STAT_ACTIVE)) {
- name = sensor_dev_attr_occ_active.dev_attr.attr.name;
- sysfs_notify(&occ->bus_dev->kobj, NULL, name);
- }
-
if ((header->ext_status & OCC_EXT_STAT_DVFS_OT) !=
(occ->prev_ext_stat & OCC_EXT_STAT_DVFS_OT)) {
name = sensor_dev_attr_occ_dvfs_overtemp.dev_attr.attr.name;
@@ -156,12 +202,34 @@ void occ_sysfs_poll_done(struct occ *occ)
sysfs_notify(&occ->bus_dev->kobj, NULL, name);
}
+ if ((header->ext_status & OCC_EXT_STAT_DVFS_VDD) !=
+ (occ->prev_ext_stat & OCC_EXT_STAT_DVFS_VDD)) {
+ name = sensor_dev_attr_occ_dvfs_vdd.dev_attr.attr.name;
+ sysfs_notify(&occ->bus_dev->kobj, NULL, name);
+ }
+
+ if ((header->ext_status & OCC_EXT_STAT_GPU_THROTTLE) !=
+ (occ->prev_ext_stat & OCC_EXT_STAT_GPU_THROTTLE)) {
+ name = sensor_dev_attr_occ_gpu_throttle.dev_attr.attr.name;
+ sysfs_notify(&occ->bus_dev->kobj, NULL, name);
+ }
+
if ((header->status & OCC_STAT_MASTER) &&
header->occs_present != occ->prev_occs_present) {
name = sensor_dev_attr_occs_present.dev_attr.attr.name;
sysfs_notify(&occ->bus_dev->kobj, NULL, name);
}
+ if (header->ips_status != occ->prev_ips_status) {
+ name = sensor_dev_attr_occ_ips_status.dev_attr.attr.name;
+ sysfs_notify(&occ->bus_dev->kobj, NULL, name);
+ }
+
+ if (header->mode != occ->prev_mode) {
+ name = sensor_dev_attr_occ_mode.dev_attr.attr.name;
+ sysfs_notify(&occ->bus_dev->kobj, NULL, name);
+ }
+
if (occ->error && occ->error != occ->prev_error) {
name = dev_attr_occ_error.attr.name;
sysfs_notify(&occ->bus_dev->kobj, NULL, name);
@@ -174,6 +242,8 @@ done:
occ->prev_stat = header->status;
occ->prev_ext_stat = header->ext_status;
occ->prev_occs_present = header->occs_present;
+ occ->prev_ips_status = header->ips_status;
+ occ->prev_mode = header->mode;
}
int occ_setup_sysfs(struct occ *occ)
@@ -181,8 +251,7 @@ int occ_setup_sysfs(struct occ *occ)
return sysfs_create_group(&occ->bus_dev->kobj, &occ_sysfs);
}
-void occ_shutdown(struct occ *occ)
+void occ_shutdown_sysfs(struct occ *occ)
{
sysfs_remove_group(&occ->bus_dev->kobj, &occ_sysfs);
}
-EXPORT_SYMBOL_GPL(occ_shutdown);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.