1 files changed, 33 insertions, 4 deletions

diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 131b53957b9..9e7e745dac5 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -361,6 +361,19 @@ enum rproc_state {
 };
 
 /**
+ * enum rproc_crash_type - remote processor crash types
+ * @RPROC_MMUFAULT:	iommu fault
+ *
+ * Each element of the enum is used as an array index. So that, the value of
+ * the elements should be always something sane.
+ *
+ * Feel free to add more types when needed.
+ */
+enum rproc_crash_type {
+	RPROC_MMUFAULT,
+};
+
+/**
  * struct rproc - represents a physical remote processor device
  * @node: klist node of this rproc object
  * @domain: iommu domain
@@ -383,6 +396,14 @@ enum rproc_state {
  * @rvdevs: list of remote virtio devices
  * @notifyids: idr for dynamically assigning rproc-wide unique notify ids
  * @index: index of this rproc device
+ * @crash_handler: workqueue for handling a crash
+ * @crash_cnt: crash counter
+ * @crash_comp: completion used to sync crash handler and the rproc reload
+ * @recovery_disabled: flag that state if recovery was disabled
+ * @max_notifyid: largest allocated notify id.
+ * @table_ptr: pointer to the resource table in effect
+ * @cached_table: copy of the resource table
+ * @table_csum: checksum of the resource table
  */
 struct rproc {
 	struct klist_node node;
@@ -406,9 +427,18 @@ struct rproc {
 	struct list_head rvdevs;
 	struct idr notifyids;
 	int index;
+	struct work_struct crash_handler;
+	unsigned crash_cnt;
+	struct completion crash_comp;
+	bool recovery_disabled;
+	int max_notifyid;
+	struct resource_table *table_ptr;
+	struct resource_table *cached_table;
+	u32 table_csum;
 };
 
 /* we currently support only two vrings per rvdev */
+
 #define RVDEV_NUM_VRINGS 2
 
 /**
@@ -439,16 +469,14 @@ struct rproc_vring {
  * @rproc: the rproc handle
  * @vdev: the virio device
  * @vring: the vrings for this vdev
- * @dfeatures: virtio device features
- * @gfeatures: virtio guest features
+ * @rsc_offset: offset of the vdev's resource entry
  */
 struct rproc_vdev {
 	struct list_head node;
 	struct rproc *rproc;
 	struct virtio_device vdev;
 	struct rproc_vring vring[RVDEV_NUM_VRINGS];
-	unsigned long dfeatures;
-	unsigned long gfeatures;
+	u32 rsc_offset;
 };
 
 struct rproc *rproc_alloc(struct device *dev, const char *name,
@@ -460,6 +488,7 @@ int rproc_del(struct rproc *rproc);
 
 int rproc_boot(struct rproc *rproc);
 void rproc_shutdown(struct rproc *rproc);
+void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type);
 
 static inline struct rproc_vdev *vdev_to_rvdev(struct virtio_device *vdev)
 {