Add guest mode functionality (1/3) am: 4048610354 am: 1b89c8c0dd -s ours am: 4c7e952d48 am: 45c6e0013a
am: 8a1c5858ce
* commit '8a1c5858ce8468eb03824687526c05258da5886d':
Add guest mode functionality (1/3)
Change-Id: I2719054c19528397189f36b125cede04d366fa60
diff --git a/include/hardware/gralloc.h b/include/hardware/gralloc.h
index ef86f90..779915c 100644
--- a/include/hardware/gralloc.h
+++ b/include/hardware/gralloc.h
@@ -379,6 +379,38 @@
return device->common.close(&device->common);
}
+/**
+ * map_usage_to_memtrack should be called after allocating a gralloc buffer.
+ *
+ * @param usage - it is the flag used when alloc function is called.
+ *
+ * This function maps the gralloc usage flags to appropriate memtrack bucket.
+ * GrallocHAL implementers and users should make an additional ION_IOCTL_TAG
+ * call using the memtrack tag returned by this function. This will help the
+ * in-kernel memtack to categorize the memory allocated by different processes
+ * according to their usage.
+ *
+ */
+static inline const char* map_usage_to_memtrack(uint32_t usage) {
+ usage &= GRALLOC_USAGE_ALLOC_MASK;
+
+ if ((usage & GRALLOC_USAGE_HW_CAMERA_WRITE) != 0) {
+ return "camera";
+ } else if ((usage & GRALLOC_USAGE_HW_VIDEO_ENCODER) != 0 ||
+ (usage & GRALLOC_USAGE_EXTERNAL_DISP) != 0) {
+ return "video";
+ } else if ((usage & GRALLOC_USAGE_HW_RENDER) != 0 ||
+ (usage & GRALLOC_USAGE_HW_TEXTURE) != 0) {
+ return "gl";
+ } else if ((usage & GRALLOC_USAGE_HW_CAMERA_READ) != 0) {
+ return "camera";
+ } else if ((usage & GRALLOC_USAGE_SW_READ_MASK) != 0 ||
+ (usage & GRALLOC_USAGE_SW_WRITE_MASK) != 0) {
+ return "cpu";
+ }
+ return "graphics";
+}
+
__END_DECLS
#endif // ANDROID_GRALLOC_INTERFACE_H