diff options
Diffstat (limited to 'drivers/dma/idxd/sysfs.c')
| -rw-r--r-- | drivers/dma/idxd/sysfs.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c index 6ca6e520a2fa..3999827970ab 100644 --- a/drivers/dma/idxd/sysfs.c +++ b/drivers/dma/idxd/sysfs.c @@ -419,7 +419,7 @@ static ssize_t engine_group_id_store(struct device *dev, struct idxd_device *idxd = engine->idxd; long id; int rc; - struct idxd_group *prevg, *group; + struct idxd_group *prevg; rc = kstrtol(buf, 10, &id); if (rc < 0) @@ -439,7 +439,6 @@ static ssize_t engine_group_id_store(struct device *dev, return count; } - group = &idxd->groups[id]; prevg = engine->group; if (prevg) @@ -513,9 +512,6 @@ static ssize_t group_tokens_reserved_store(struct device *dev, if (idxd->state == IDXD_DEV_ENABLED) return -EPERM; - if (idxd->token_limit == 0) - return -EPERM; - if (val > idxd->max_tokens) return -EINVAL; @@ -561,8 +557,6 @@ static ssize_t group_tokens_allowed_store(struct device *dev, if (idxd->state == IDXD_DEV_ENABLED) return -EPERM; - if (idxd->token_limit == 0) - return -EPERM; if (val < 4 * group->num_engines || val > group->tokens_reserved + idxd->nr_tokens) return -EINVAL; @@ -1180,6 +1174,16 @@ static ssize_t op_cap_show(struct device *dev, } static DEVICE_ATTR_RO(op_cap); +static ssize_t gen_cap_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct idxd_device *idxd = + container_of(dev, struct idxd_device, conf_dev); + + return sprintf(buf, "%#llx\n", idxd->hw.gen_cap.bits); +} +static DEVICE_ATTR_RO(gen_cap); + static ssize_t configurable_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1317,6 +1321,7 @@ static struct attribute *idxd_device_attributes[] = { &dev_attr_max_batch_size.attr, &dev_attr_max_transfer_size.attr, &dev_attr_op_cap.attr, + &dev_attr_gen_cap.attr, &dev_attr_configurable.attr, &dev_attr_clients.attr, &dev_attr_state.attr, |