Merge "Memtrack HAL: Report global total GPU-private memory" am: 54519b1060
Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1763192
Change-Id: Ic9cedca58358c85352236edd159267472c100684
diff --git a/memtrack/aidl/android/hardware/memtrack/IMemtrack.aidl b/memtrack/aidl/android/hardware/memtrack/IMemtrack.aidl
index 13c3389..88b090b 100644
--- a/memtrack/aidl/android/hardware/memtrack/IMemtrack.aidl
+++ b/memtrack/aidl/android/hardware/memtrack/IMemtrack.aidl
@@ -44,6 +44,12 @@
* This category should report all GPU private allocations for the specified
* PID that are not accounted in /proc/<pid>/smaps.
*
+ * getMemory() called with PID 0 should report the global total GPU-private
+ * memory, for MemtrackType::GL and MemtrackRecord::FLAG_SMAPS_UNACCOUNTED.
+ *
+ * getMemory() called with PID 0 for a MemtrackType other than GL should
+ * report 0.
+ *
* - MemtrackType::OTHER and MemtrackRecord::FLAG_SMAPS_UNACCOUNTED
* Any other memory not accounted for in /proc/<pid>/smaps if any, otherwise
* this should return 0.
@@ -52,6 +58,9 @@
* VM_PFNMAP flag set. For these mappings PSS and RSS are reported as 0 in smaps.
* Such mappings have no backing page structs from which PSS/RSS can be calculated.
*
+ * Any memtrack operation that is not supported should return a binder status with
+ * exception code EX_UNSUPPORTED_OPERATION.
+ *
* Constructor for the interface should be used to perform memtrack management
* setup actions and must be called once before any calls to getMemory().
*/