Add support for pmap_sync_icache on arm64.

[andrew]

Test Plan

Run the failing test case

[emaste]

sys/arm64/arm64/pmap.c

3060 ↗

(On Diff #8081)

Should we check against VM_MAX_KERNEL_ADDRESS too?

[imp]

this looks like what you're supposed to do.

[andrew]

sys/arm64/arm64/pmap.c

3060 ↗

(On Diff #8081)

The vm code checks this for us. It only calls this function with valid entries, we just need to know if the address is a user or kernel address.

head/sys/arm64/arm64/pmap.c

         device_t        _child;
         u_int           _irq;
 } DEFAULT null_remap_intr;
+
+/**
+ * @brief Resume a child of the bus
+ *
+ * @param _dev          the bus device
+ * @param _child        the child device
+ */
+METHOD int resume_child {
+        device_t        _dev;
+        device_t        _child;
+} DEFAULT bus_generic_resume_child;
+
+/**
+ * @brief Suspend a child of the bus
+ *
+ * @param _dev          the bus device
+ * @param _child        the child device
+ */
+METHOD int suspend_child {
+        device_t        _dev;
+        device_t        _child;
+} DEFAULT bus_generic_suspend_child;