@@ -24,6 +24,21 @@ struct rproc_debug_trace {
struct rproc_mem_entry trace_mem;
};
+static inline bool rproc_has_feature(struct rproc *rproc, unsigned int feature)
+{
+ return test_bit(feature, rproc->features);
+}
+
+static inline int rproc_set_feature(struct rproc *rproc, unsigned int feature)
+{
+ if (feature >= RPROC_MAX_FEATURES)
+ return -EINVAL;
+
+ set_bit(feature, rproc->features);
+
+ return 0;
+}
+
/* from remoteproc_core.c */
void rproc_release(struct kref *kref);
irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
@@ -489,6 +489,20 @@ struct rproc_dump_segment {
loff_t offset;
};
+/**
+ * enum rproc_features - features supported
+ *
+ * @RPROC_FEAT_ATTACH_ON_RECOVERY: The remote processor does not need help
+ * from Linux to recover, such as firmware
+ * loading. Linux just needs to attach after
+ * recovery.
+ */
+
+enum rproc_features {
+ RPROC_FEAT_ATTACH_ON_RECOVERY,
+ RPROC_MAX_FEATURES,
+};
+
/**
* struct rproc - represents a physical remote processor device
* @node: list node of this rproc object
@@ -530,6 +544,7 @@ struct rproc_dump_segment {
* @elf_machine: firmware ELF machine
* @cdev: character device of the rproc
* @cdev_put_on_release: flag to indicate if remoteproc should be shutdown on @char_dev release
+ * @features: indicate remoteproc features
*/
struct rproc {
struct list_head node;
@@ -570,6 +585,7 @@ struct rproc {
u16 elf_machine;
struct cdev cdev;
bool cdev_put_on_release;
+ DECLARE_BITMAP(features, RPROC_MAX_FEATURES);
};
/**