Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index 7269bd54554f6..3229dfc786507 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -528,6 +528,22 @@ static bool idxd_group_attr_progress_limit_invisible(struct attribute *attr,
 		!idxd->hw.group_cap.progress_limit;
 }
 
+static bool idxd_group_attr_read_buffers_invisible(struct attribute *attr,
+						   struct idxd_device *idxd)
+{
+	/*
+	 * Intel IAA does not support Read Buffer allocation control,
+	 * make these attributes invisible.
+	 */
+	return (attr == &dev_attr_group_use_token_limit.attr ||
+		attr == &dev_attr_group_use_read_buffer_limit.attr ||
+		attr == &dev_attr_group_tokens_allowed.attr ||
+		attr == &dev_attr_group_read_buffers_allowed.attr ||
+		attr == &dev_attr_group_tokens_reserved.attr ||
+		attr == &dev_attr_group_read_buffers_reserved.attr) &&
+		idxd->data->type == IDXD_TYPE_IAX;
+}
+
 static umode_t idxd_group_attr_visible(struct kobject *kobj,
 				       struct attribute *attr, int n)
 {
@@ -538,6 +554,9 @@ static umode_t idxd_group_attr_visible(struct kobject *kobj,
 	if (idxd_group_attr_progress_limit_invisible(attr, idxd))
 		return 0;
 
+	if (idxd_group_attr_read_buffers_invisible(attr, idxd))
+		return 0;
+
 	return attr->mode;
 }
 
@@ -1233,6 +1252,14 @@ static bool idxd_wq_attr_op_config_invisible(struct attribute *attr,
 	       !idxd->hw.wq_cap.op_config;
 }
 
+static bool idxd_wq_attr_max_batch_size_invisible(struct attribute *attr,
+						  struct idxd_device *idxd)
+{
+	/* Intel IAA does not support batch processing, make it invisible */
+	return attr == &dev_attr_wq_max_batch_size.attr &&
+	       idxd->data->type == IDXD_TYPE_IAX;
+}
+
 static umode_t idxd_wq_attr_visible(struct kobject *kobj,
 				    struct attribute *attr, int n)
 {
@@ -1243,6 +1270,9 @@ static umode_t idxd_wq_attr_visible(struct kobject *kobj,
 	if (idxd_wq_attr_op_config_invisible(attr, idxd))
 		return 0;
 
+	if (idxd_wq_attr_max_batch_size_invisible(attr, idxd))
+		return 0;
+
 	return attr->mode;
 }
 
@@ -1533,6 +1563,43 @@ static ssize_t cmd_status_store(struct device *dev, struct device_attribute *att
 }
 static DEVICE_ATTR_RW(cmd_status);
 
+static bool idxd_device_attr_max_batch_size_invisible(struct attribute *attr,
+						      struct idxd_device *idxd)
+{
+	/* Intel IAA does not support batch processing, make it invisible */
+	return attr == &dev_attr_max_batch_size.attr &&
+	       idxd->data->type == IDXD_TYPE_IAX;
+}
+
+static bool idxd_device_attr_read_buffers_invisible(struct attribute *attr,
+						    struct idxd_device *idxd)
+{
+	/*
+	 * Intel IAA does not support Read Buffer allocation control,
+	 * make these attributes invisible.
+	 */
+	return (attr == &dev_attr_max_tokens.attr ||
+		attr == &dev_attr_max_read_buffers.attr ||
+		attr == &dev_attr_token_limit.attr ||
+		attr == &dev_attr_read_buffer_limit.attr) &&
+		idxd->data->type == IDXD_TYPE_IAX;
+}
+
+static umode_t idxd_device_attr_visible(struct kobject *kobj,
+					struct attribute *attr, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct idxd_device *idxd = confdev_to_idxd(dev);
+
+	if (idxd_device_attr_max_batch_size_invisible(attr, idxd))
+		return 0;
+
+	if (idxd_device_attr_read_buffers_invisible(attr, idxd))
+		return 0;
+
+	return attr->mode;
+}
+
 static struct attribute *idxd_device_attributes[] = {
 	&dev_attr_version.attr,
 	&dev_attr_max_groups.attr,
@@ -1560,6 +1627,7 @@ static struct attribute *idxd_device_attributes[] = {
 
 static const struct attribute_group idxd_device_attribute_group = {
 	.attrs = idxd_device_attributes,
+	.is_visible = idxd_device_attr_visible,
 };
 
 static const struct attribute_group *idxd_attribute_groups[] = {