diff options
| -rw-r--r-- | drivers/misc/uacce/uacce.c | 50 | ||||
| -rw-r--r-- | include/linux/uacce.h | 12 |
2 files changed, 62 insertions, 0 deletions
diff --git a/drivers/misc/uacce/uacce.c b/drivers/misc/uacce/uacce.c index 905eff1f840e..d3a217929a24 100644 --- a/drivers/misc/uacce/uacce.c +++ b/drivers/misc/uacce/uacce.c @@ -363,12 +363,52 @@ static ssize_t region_dus_size_show(struct device *dev, uacce->qf_pg_num[UACCE_QFRT_DUS] << PAGE_SHIFT); } +static ssize_t isolate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uacce_device *uacce = to_uacce_device(dev); + + return sysfs_emit(buf, "%d\n", uacce->ops->get_isolate_state(uacce)); +} + +static ssize_t isolate_strategy_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct uacce_device *uacce = to_uacce_device(dev); + u32 val; + + val = uacce->ops->isolate_err_threshold_read(uacce); + + return sysfs_emit(buf, "%u\n", val); +} + +static ssize_t isolate_strategy_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct uacce_device *uacce = to_uacce_device(dev); + unsigned long val; + int ret; + + if (kstrtoul(buf, 0, &val) < 0) + return -EINVAL; + + if (val > UACCE_MAX_ERR_THRESHOLD) + return -EINVAL; + + ret = uacce->ops->isolate_err_threshold_write(uacce, val); + if (ret) + return ret; + + return count; +} + static DEVICE_ATTR_RO(api); static DEVICE_ATTR_RO(flags); static DEVICE_ATTR_RO(available_instances); static DEVICE_ATTR_RO(algorithms); static DEVICE_ATTR_RO(region_mmio_size); static DEVICE_ATTR_RO(region_dus_size); +static DEVICE_ATTR_RO(isolate); +static DEVICE_ATTR_RW(isolate_strategy); static struct attribute *uacce_dev_attrs[] = { &dev_attr_api.attr, @@ -377,6 +417,8 @@ static struct attribute *uacce_dev_attrs[] = { &dev_attr_algorithms.attr, &dev_attr_region_mmio_size.attr, &dev_attr_region_dus_size.attr, + &dev_attr_isolate.attr, + &dev_attr_isolate_strategy.attr, NULL, }; @@ -392,6 +434,14 @@ static umode_t uacce_dev_is_visible(struct kobject *kobj, (!uacce->qf_pg_num[UACCE_QFRT_DUS]))) return 0; + if (attr == &dev_attr_isolate_strategy.attr && + (!uacce->ops->isolate_err_threshold_read && + !uacce->ops->isolate_err_threshold_write)) + return 0; + + if (attr == &dev_attr_isolate.attr && !uacce->ops->get_isolate_state) + return 0; + return attr->mode; } diff --git a/include/linux/uacce.h b/include/linux/uacce.h index 9ce88c28b0a8..0a81c3dfd26c 100644 --- a/include/linux/uacce.h +++ b/include/linux/uacce.h @@ -8,6 +8,7 @@ #define UACCE_NAME "uacce" #define UACCE_MAX_REGION 2 #define UACCE_MAX_NAME_SIZE 64 +#define UACCE_MAX_ERR_THRESHOLD 65535 struct uacce_queue; struct uacce_device; @@ -30,6 +31,9 @@ struct uacce_qfile_region { * @is_q_updated: check whether the task is finished * @mmap: mmap addresses of queue to user space * @ioctl: ioctl for user space users of the queue + * @get_isolate_state: get the device state after set the isolate strategy + * @isolate_err_threshold_write: stored the isolate error threshold to the device + * @isolate_err_threshold_read: read the isolate error threshold value from the device */ struct uacce_ops { int (*get_available_instances)(struct uacce_device *uacce); @@ -43,6 +47,9 @@ struct uacce_ops { struct uacce_qfile_region *qfr); long (*ioctl)(struct uacce_queue *q, unsigned int cmd, unsigned long arg); + enum uacce_dev_state (*get_isolate_state)(struct uacce_device *uacce); + int (*isolate_err_threshold_write)(struct uacce_device *uacce, u32 num); + u32 (*isolate_err_threshold_read)(struct uacce_device *uacce); }; /** @@ -57,6 +64,11 @@ struct uacce_interface { const struct uacce_ops *ops; }; +enum uacce_dev_state { + UACCE_DEV_NORMAL, + UACCE_DEV_ISOLATE, +}; + enum uacce_q_state { UACCE_Q_ZOMBIE = 0, UACCE_Q_INIT, |