audio_hal: Optimize binder buffer allocation.

Optimize binder buffer allocation based on maximum page size
observed during peak usage.

CRs-Fixed: 2290589

Change-Id: I308f3eaff5ada787426526e1efcc787cd4f12409

1 files changed, 18 insertions, 0 deletions

diff --git a/audio/common/all-versions/default/service/service.cpp b/audio/common/all-versions/default/service/service.cpp
index d4a5a4d62d..7648bc527d 100644
--- a/audio/common/all-versions/default/service/service.cpp
+++ b/audio/common/all-versions/default/service/service.cpp
@@ -27,12 +27,30 @@
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/LegacySupport.h>
 #include <com/qualcomm/qti/bluetooth_audio/1.0/IBluetoothAudio.h>
+#include <hwbinder/ProcessState.h>
+#include <cutils/properties.h>
 
 using namespace android::hardware;
 using com::qualcomm::qti::bluetooth_audio::V1_0::IBluetoothAudio;
 using android::OK;
 
+
+#ifdef ARCH_ARM_32
+//default h/w binder memsize is 1 MB
+#define DEFAULT_HW_BINDER_MEM_SIZE_KB 1024
+
+size_t getHWBinderMmapSize(){
+    int32_t value = DEFAULT_HW_BINDER_MEM_SIZE_KB;
+    value = property_get_int32("persist.vendor.audio.hw.binder.size_kbyte", value);
+    ALOGD("Init hw binder with mem  size = %d  ", value);
+    return 1024 * value;
+}
+#endif
+
 int main(int /* argc */, char* /* argv */ []) {
+#ifdef ARCH_ARM_32
+    android::hardware::ProcessState::initWithMmapSize(getHWBinderMmapSize());
+#endif
     android::ProcessState::initWithDriver("/dev/vndbinder");
     // start a threadpool for vndbinder interactions
     android::ProcessState::self()->startThreadPool();