diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index cbbea12..1f9892a 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -49,14 +49,28 @@
     const std::string iface = name.substr(lastDot+1, firstSlash-lastDot-1);
     const std::string instance = name.substr(firstSlash+1);
 
-    for (const auto& manifest : {
-            vintf::VintfObject::GetDeviceHalManifest(),
-            vintf::VintfObject::GetFrameworkHalManifest()
+    struct ManifestWithDescription {
+        std::shared_ptr<const vintf::HalManifest> manifest;
+        const char* description;
+    };
+    for (const ManifestWithDescription& mwd : {
+            ManifestWithDescription{ vintf::VintfObject::GetDeviceHalManifest(), "device" },
+            ManifestWithDescription{ vintf::VintfObject::GetFrameworkHalManifest(), "framework" },
         }) {
-        if (manifest != nullptr && manifest->hasAidlInstance(package, iface, instance)) {
+        if (mwd.manifest == nullptr) {
+          LOG(ERROR) << "NULL VINTF MANIFEST!: " << mwd.description;
+          // note, we explicitly do not retry here, so that we can detect VINTF
+          // or other bugs (b/151696835)
+          continue;
+        }
+        if (mwd.manifest->hasAidlInstance(package, iface, instance)) {
+            LOG(INFO) << "Found " << name << " in " << mwd.description << " VINTF manifest.";
             return true;
         }
     }
+
+    // Although it is tested, explicitly rebuilding qualified name, in case it
+    // becomes something unexpected.
     LOG(ERROR) << "Could not find " << package << "." << iface << "/" << instance
                << " in the VINTF manifest.";
     return false;
@@ -72,13 +86,20 @@
 #endif  // !VENDORSERVICEMANAGER
 
 ServiceManager::ServiceManager(std::unique_ptr<Access>&& access) : mAccess(std::move(access)) {
-#ifndef VENDORSERVICEMANAGER
-    // can process these at any times, don't want to delay first VINTF client
-    std::thread([] {
-        vintf::VintfObject::GetDeviceHalManifest();
-        vintf::VintfObject::GetFrameworkHalManifest();
-    }).detach();
-#endif  // !VENDORSERVICEMANAGER
+// TODO(b/151696835): reenable performance hack when we solve bug, since with
+//     this hack and other fixes, it is unlikely we will see even an ephemeral
+//     failure when the manifest parse fails. The goal is that the manifest will
+//     be read incorrectly and cause the process trying to register a HAL to
+//     fail. If this is in fact an early boot kernel contention issue, then we
+//     will get no failure, and by its absence, be signalled to invest more
+//     effort in re-adding this performance hack.
+// #ifndef VENDORSERVICEMANAGER
+//     // can process these at any times, don't want to delay first VINTF client
+//     std::thread([] {
+//         vintf::VintfObject::GetDeviceHalManifest();
+//         vintf::VintfObject::GetFrameworkHalManifest();
+//     }).detach();
+// #endif  // !VENDORSERVICEMANAGER
 }
 ServiceManager::~ServiceManager() {
     // this should only happen in tests
@@ -547,4 +568,4 @@
     return Status::ok();
 }
 
-}  // namespace android
\ No newline at end of file
+}  // namespace android
diff --git a/include/ui/FatVector.h b/include/ui/FatVector.h
new file mode 120000
index 0000000..c2047c0
--- /dev/null
+++ b/include/ui/FatVector.h
@@ -0,0 +1 @@
+../../libs/ui/include/ui/FatVector.h
\ No newline at end of file
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 6fd53cf..2a27a9a 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -931,8 +931,11 @@
     }
 
     virtual status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
-                                                  int32_t defaultConfig, float minRefreshRate,
-                                                  float maxRefreshRate) {
+                                                  int32_t defaultConfig,
+                                                  float primaryRefreshRateMin,
+                                                  float primaryRefreshRateMax,
+                                                  float appRequestRefreshRateMin,
+                                                  float appRequestRefreshRateMax) {
         Parcel data, reply;
         status_t result = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         if (result != NO_ERROR) {
@@ -949,14 +952,26 @@
             ALOGE("setDesiredDisplayConfigSpecs failed to write defaultConfig: %d", result);
             return result;
         }
-        result = data.writeFloat(minRefreshRate);
+        result = data.writeFloat(primaryRefreshRateMin);
         if (result != NO_ERROR) {
-            ALOGE("setDesiredDisplayConfigSpecs failed to write minRefreshRate: %d", result);
+            ALOGE("setDesiredDisplayConfigSpecs failed to write primaryRefreshRateMin: %d", result);
             return result;
         }
-        result = data.writeFloat(maxRefreshRate);
+        result = data.writeFloat(primaryRefreshRateMax);
         if (result != NO_ERROR) {
-            ALOGE("setDesiredDisplayConfigSpecs failed to write maxRefreshRate: %d", result);
+            ALOGE("setDesiredDisplayConfigSpecs failed to write primaryRefreshRateMax: %d", result);
+            return result;
+        }
+        result = data.writeFloat(appRequestRefreshRateMin);
+        if (result != NO_ERROR) {
+            ALOGE("setDesiredDisplayConfigSpecs failed to write appRequestRefreshRateMin: %d",
+                  result);
+            return result;
+        }
+        result = data.writeFloat(appRequestRefreshRateMax);
+        if (result != NO_ERROR) {
+            ALOGE("setDesiredDisplayConfigSpecs failed to write appRequestRefreshRateMax: %d",
+                  result);
             return result;
         }
 
@@ -971,9 +986,14 @@
 
     virtual status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                   int32_t* outDefaultConfig,
-                                                  float* outMinRefreshRate,
-                                                  float* outMaxRefreshRate) {
-        if (!outDefaultConfig || !outMinRefreshRate || !outMaxRefreshRate) return BAD_VALUE;
+                                                  float* outPrimaryRefreshRateMin,
+                                                  float* outPrimaryRefreshRateMax,
+                                                  float* outAppRequestRefreshRateMin,
+                                                  float* outAppRequestRefreshRateMax) {
+        if (!outDefaultConfig || !outPrimaryRefreshRateMin || !outPrimaryRefreshRateMax ||
+            !outAppRequestRefreshRateMin || !outAppRequestRefreshRateMax) {
+            return BAD_VALUE;
+        }
         Parcel data, reply;
         status_t result = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         if (result != NO_ERROR) {
@@ -996,14 +1016,26 @@
             ALOGE("getDesiredDisplayConfigSpecs failed to read defaultConfig: %d", result);
             return result;
         }
-        result = reply.readFloat(outMinRefreshRate);
+        result = reply.readFloat(outPrimaryRefreshRateMin);
         if (result != NO_ERROR) {
-            ALOGE("getDesiredDisplayConfigSpecs failed to read minRefreshRate: %d", result);
+            ALOGE("getDesiredDisplayConfigSpecs failed to read primaryRefreshRateMin: %d", result);
             return result;
         }
-        result = reply.readFloat(outMaxRefreshRate);
+        result = reply.readFloat(outPrimaryRefreshRateMax);
         if (result != NO_ERROR) {
-            ALOGE("getDesiredDisplayConfigSpecs failed to read maxRefreshRate: %d", result);
+            ALOGE("getDesiredDisplayConfigSpecs failed to read primaryRefreshRateMax: %d", result);
+            return result;
+        }
+        result = reply.readFloat(outAppRequestRefreshRateMin);
+        if (result != NO_ERROR) {
+            ALOGE("getDesiredDisplayConfigSpecs failed to read appRequestRefreshRateMin: %d",
+                  result);
+            return result;
+        }
+        result = reply.readFloat(outAppRequestRefreshRateMax);
+        if (result != NO_ERROR) {
+            ALOGE("getDesiredDisplayConfigSpecs failed to read appRequestRefreshRateMax: %d",
+                  result);
             return result;
         }
         return reply.readInt32();
@@ -1835,20 +1867,38 @@
                 ALOGE("setDesiredDisplayConfigSpecs: failed to read defaultConfig: %d", result);
                 return result;
             }
-            float minRefreshRate;
-            result = data.readFloat(&minRefreshRate);
+            float primaryRefreshRateMin;
+            result = data.readFloat(&primaryRefreshRateMin);
             if (result != NO_ERROR) {
-                ALOGE("setDesiredDisplayConfigSpecs: failed to read minRefreshRate: %d", result);
+                ALOGE("setDesiredDisplayConfigSpecs: failed to read primaryRefreshRateMin: %d",
+                      result);
                 return result;
             }
-            float maxRefreshRate;
-            result = data.readFloat(&maxRefreshRate);
+            float primaryRefreshRateMax;
+            result = data.readFloat(&primaryRefreshRateMax);
             if (result != NO_ERROR) {
-                ALOGE("setDesiredDisplayConfigSpecs: failed to read maxRefreshRate: %d", result);
+                ALOGE("setDesiredDisplayConfigSpecs: failed to read primaryRefreshRateMax: %d",
+                      result);
                 return result;
             }
-            result = setDesiredDisplayConfigSpecs(displayToken, defaultConfig, minRefreshRate,
-                                                  maxRefreshRate);
+            float appRequestRefreshRateMin;
+            result = data.readFloat(&appRequestRefreshRateMin);
+            if (result != NO_ERROR) {
+                ALOGE("setDesiredDisplayConfigSpecs: failed to read appRequestRefreshRateMin: %d",
+                      result);
+                return result;
+            }
+            float appRequestRefreshRateMax;
+            result = data.readFloat(&appRequestRefreshRateMax);
+            if (result != NO_ERROR) {
+                ALOGE("setDesiredDisplayConfigSpecs: failed to read appRequestRefreshRateMax: %d",
+                      result);
+                return result;
+            }
+            result =
+                    setDesiredDisplayConfigSpecs(displayToken, defaultConfig, primaryRefreshRateMin,
+                                                 primaryRefreshRateMax, appRequestRefreshRateMin,
+                                                 appRequestRefreshRateMax);
             if (result != NO_ERROR) {
                 ALOGE("setDesiredDisplayConfigSpecs: failed to call setDesiredDisplayConfigSpecs: "
                       "%d",
@@ -1862,11 +1912,16 @@
             CHECK_INTERFACE(ISurfaceComposer, data, reply);
             sp<IBinder> displayToken = data.readStrongBinder();
             int32_t defaultConfig;
-            float minRefreshRate;
-            float maxRefreshRate;
+            float primaryRefreshRateMin;
+            float primaryRefreshRateMax;
+            float appRequestRefreshRateMin;
+            float appRequestRefreshRateMax;
 
-            status_t result = getDesiredDisplayConfigSpecs(displayToken, &defaultConfig,
-                                                           &minRefreshRate, &maxRefreshRate);
+            status_t result =
+                    getDesiredDisplayConfigSpecs(displayToken, &defaultConfig,
+                                                 &primaryRefreshRateMin, &primaryRefreshRateMax,
+                                                 &appRequestRefreshRateMin,
+                                                 &appRequestRefreshRateMax);
             if (result != NO_ERROR) {
                 ALOGE("getDesiredDisplayConfigSpecs: failed to get getDesiredDisplayConfigSpecs: "
                       "%d",
@@ -1879,14 +1934,28 @@
                 ALOGE("getDesiredDisplayConfigSpecs: failed to write defaultConfig: %d", result);
                 return result;
             }
-            result = reply->writeFloat(minRefreshRate);
+            result = reply->writeFloat(primaryRefreshRateMin);
             if (result != NO_ERROR) {
-                ALOGE("getDesiredDisplayConfigSpecs: failed to write minRefreshRate: %d", result);
+                ALOGE("getDesiredDisplayConfigSpecs: failed to write primaryRefreshRateMin: %d",
+                      result);
                 return result;
             }
-            result = reply->writeFloat(maxRefreshRate);
+            result = reply->writeFloat(primaryRefreshRateMax);
             if (result != NO_ERROR) {
-                ALOGE("getDesiredDisplayConfigSpecs: failed to write maxRefreshRate: %d", result);
+                ALOGE("getDesiredDisplayConfigSpecs: failed to write primaryRefreshRateMax: %d",
+                      result);
+                return result;
+            }
+            result = reply->writeFloat(appRequestRefreshRateMin);
+            if (result != NO_ERROR) {
+                ALOGE("getDesiredDisplayConfigSpecs: failed to write appRequestRefreshRateMin: %d",
+                      result);
+                return result;
+            }
+            result = reply->writeFloat(appRequestRefreshRateMax);
+            if (result != NO_ERROR) {
+                ALOGE("getDesiredDisplayConfigSpecs: failed to write appRequestRefreshRateMax: %d",
+                      result);
                 return result;
             }
             reply->writeInt32(result);
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index d9cbeb7..a52f298 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1698,22 +1698,26 @@
 
 status_t SurfaceComposerClient::setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                              int32_t defaultConfig,
-                                                             float minRefreshRate,
-                                                             float maxRefreshRate) {
-    return ComposerService::getComposerService()->setDesiredDisplayConfigSpecs(displayToken,
-                                                                               defaultConfig,
-                                                                               minRefreshRate,
-                                                                               maxRefreshRate);
+                                                             float primaryRefreshRateMin,
+                                                             float primaryRefreshRateMax,
+                                                             float appRequestRefreshRateMin,
+                                                             float appRequestRefreshRateMax) {
+    return ComposerService::getComposerService()
+            ->setDesiredDisplayConfigSpecs(displayToken, defaultConfig, primaryRefreshRateMin,
+                                           primaryRefreshRateMax, appRequestRefreshRateMin,
+                                           appRequestRefreshRateMax);
 }
 
 status_t SurfaceComposerClient::getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                              int32_t* outDefaultConfig,
-                                                             float* outMinRefreshRate,
-                                                             float* outMaxRefreshRate) {
-    return ComposerService::getComposerService()->getDesiredDisplayConfigSpecs(displayToken,
-                                                                               outDefaultConfig,
-                                                                               outMinRefreshRate,
-                                                                               outMaxRefreshRate);
+                                                             float* outPrimaryRefreshRateMin,
+                                                             float* outPrimaryRefreshRateMax,
+                                                             float* outAppRequestRefreshRateMin,
+                                                             float* outAppRequestRefreshRateMax) {
+    return ComposerService::getComposerService()
+            ->getDesiredDisplayConfigSpecs(displayToken, outDefaultConfig, outPrimaryRefreshRateMin,
+                                           outPrimaryRefreshRateMax, outAppRequestRefreshRateMin,
+                                           outAppRequestRefreshRateMax);
 }
 
 status_t SurfaceComposerClient::getDisplayColorModes(const sp<IBinder>& display,
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index b4a3fbe..0d33b3f 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -426,19 +426,36 @@
      */
     virtual status_t removeRegionSamplingListener(const sp<IRegionSamplingListener>& listener) = 0;
 
-    /*
-     * Sets the refresh rate boundaries for display configuration.
-     * For all other parameters, default configuration is used. The index for the default is
-     * corresponding to the configs returned from getDisplayConfigs().
+    /* Sets the refresh rate boundaries for the display.
+     *
+     * The primary refresh rate range represents display manager's general guidance on the display
+     * configs we'll consider when switching refresh rates. Unless we get an explicit signal from an
+     * app, we should stay within this range.
+     *
+     * The app request refresh rate range allows us to consider more display configs when switching
+     * refresh rates. Although we should generally stay within the primary range, specific
+     * considerations, such as layer frame rate settings specified via the setFrameRate() api, may
+     * cause us to go outside the primary range. We never go outside the app request range. The app
+     * request range will be greater than or equal to the primary refresh rate range, never smaller.
+     *
+     * defaultConfig is used to narrow the list of display configs SurfaceFlinger will consider
+     * switching between. Only configs with a config group and resolution matching defaultConfig
+     * will be considered for switching. The defaultConfig index corresponds to the list of configs
+     * returned from getDisplayConfigs().
      */
     virtual status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
-                                                  int32_t defaultConfig, float minRefreshRate,
-                                                  float maxRefreshRate) = 0;
+                                                  int32_t defaultConfig,
+                                                  float primaryRefreshRateMin,
+                                                  float primaryRefreshRateMax,
+                                                  float appRequestRefreshRateMin,
+                                                  float appRequestRefreshRateMax) = 0;
 
     virtual status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                   int32_t* outDefaultConfig,
-                                                  float* outMinRefreshRate,
-                                                  float* outMaxRefreshRate) = 0;
+                                                  float* outPrimaryRefreshRateMin,
+                                                  float* outPrimaryRefreshRateMax,
+                                                  float* outAppRequestRefreshRateMin,
+                                                  float* outAppRequestRefreshRateMax) = 0;
     /*
      * Gets whether brightness operations are supported on a display.
      *
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 2fb9538..531aed7 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -118,21 +118,19 @@
     // Shorthand for getDisplayConfigs element at getActiveConfig index.
     static status_t getActiveDisplayConfig(const sp<IBinder>& display, DisplayConfig*);
 
-    // Sets the refresh rate boundaries for display configuration.
-    // For all other parameters, default configuration is used. The index for the default is
-    // corresponting to the configs returned from getDisplayConfigs().
+    // Sets the refresh rate boundaries for the display.
     static status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
-                                                 int32_t defaultConfig, float minRefreshRate,
-                                                 float maxRefreshRate);
-    // Gets the refresh rate boundaries for display configuration.
-    // For all other parameters, default configuration is used. The index for the default is
-    // corresponting to the configs returned from getDisplayConfigs().
-    // The reason is passed in for telemetry tracking, and it corresponds to the list of all
-    // the policy rules that were used.
+                                                 int32_t defaultConfig, float primaryRefreshRateMin,
+                                                 float primaryRefreshRateMax,
+                                                 float appRequestRefreshRateMin,
+                                                 float appRequestRefreshRateMax);
+    // Gets the refresh rate boundaries for the display.
     static status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                  int32_t* outDefaultConfig,
-                                                 float* outMinRefreshRate,
-                                                 float* outMaxRefreshRate);
+                                                 float* outPrimaryRefreshRateMin,
+                                                 float* outPrimaryRefreshRateMax,
+                                                 float* outAppRequestRefreshRateMin,
+                                                 float* outAppRequestRefreshRateMax);
 
     // Gets the list of supported color modes for the given display
     static status_t getDisplayColorModes(const sp<IBinder>& display,
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 1acbc9e..a1d12a5 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -834,14 +834,19 @@
         return NO_ERROR;
     }
     status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& /*displayToken*/,
-                                          int32_t /*defaultConfig*/, float /*minRefreshRate*/,
-                                          float /*maxRefreshRate*/) {
+                                          int32_t /*defaultConfig*/,
+                                          float /*primaryRefreshRateMin*/,
+                                          float /*primaryRefreshRateMax*/,
+                                          float /*appRequestRefreshRateMin*/,
+                                          float /*appRequestRefreshRateMax*/) {
         return NO_ERROR;
     }
     status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& /*displayToken*/,
                                           int32_t* /*outDefaultConfig*/,
-                                          float* /*outMinRefreshRate*/,
-                                          float* /*outMaxRefreshRate*/) override {
+                                          float* /*outPrimaryRefreshRateMin*/,
+                                          float* /*outPrimaryRefreshRateMax*/,
+                                          float* /*outAppRequestRefreshRateMin*/,
+                                          float* /*outAppRequestRefreshRateMax*/) override {
         return NO_ERROR;
     };
     status_t notifyPowerHint(int32_t /*hintId*/) override { return NO_ERROR; }
diff --git a/libs/ui/Region.cpp b/libs/ui/Region.cpp
index d929cc3..82ce757 100644
--- a/libs/ui/Region.cpp
+++ b/libs/ui/Region.cpp
@@ -67,19 +67,20 @@
 // ----------------------------------------------------------------------------
 
 Region::Region() {
-    mStorage.add(Rect(0,0));
+    mStorage.push_back(Rect(0, 0));
 }
 
 Region::Region(const Region& rhs)
-    : mStorage(rhs.mStorage)
 {
+    mStorage.clear();
+    mStorage.insert(mStorage.begin(), rhs.mStorage.begin(), rhs.mStorage.end());
 #if defined(VALIDATE_REGIONS)
     validate(rhs, "rhs copy-ctor");
 #endif
 }
 
 Region::Region(const Rect& rhs) {
-    mStorage.add(rhs);
+    mStorage.push_back(rhs);
 }
 
 Region::~Region()
@@ -100,8 +101,8 @@
  * final, correctly ordered region buffer. Each rectangle will be compared with the span directly
  * above it, and subdivided to resolve any remaining T-junctions.
  */
-static void reverseRectsResolvingJunctions(const Rect* begin, const Rect* end,
-        Vector<Rect>& dst, int spanDirection) {
+static void reverseRectsResolvingJunctions(const Rect* begin, const Rect* end, FatVector<Rect>& dst,
+                                           int spanDirection) {
     dst.clear();
 
     const Rect* current = end - 1;
@@ -109,7 +110,7 @@
 
     // add first span immediately
     do {
-        dst.add(*current);
+        dst.push_back(*current);
         current--;
     } while (current->top == lastTop && current >= begin);
 
@@ -147,12 +148,12 @@
                 if (prev.right <= left) break;
 
                 if (prev.right > left && prev.right < right) {
-                    dst.add(Rect(prev.right, top, right, bottom));
+                    dst.push_back(Rect(prev.right, top, right, bottom));
                     right = prev.right;
                 }
 
                 if (prev.left > left && prev.left < right) {
-                    dst.add(Rect(prev.left, top, right, bottom));
+                    dst.push_back(Rect(prev.left, top, right, bottom));
                     right = prev.left;
                 }
 
@@ -166,12 +167,12 @@
                 if (prev.left >= right) break;
 
                 if (prev.left > left && prev.left < right) {
-                    dst.add(Rect(left, top, prev.left, bottom));
+                    dst.push_back(Rect(left, top, prev.left, bottom));
                     left = prev.left;
                 }
 
                 if (prev.right > left && prev.right < right) {
-                    dst.add(Rect(left, top, prev.right, bottom));
+                    dst.push_back(Rect(left, top, prev.right, bottom));
                     left = prev.right;
                 }
                 // if an entry in the previous span is too far left, nothing further right in the
@@ -183,7 +184,7 @@
         }
 
         if (left < right) {
-            dst.add(Rect(left, top, right, bottom));
+            dst.push_back(Rect(left, top, right, bottom));
         }
 
         current--;
@@ -201,13 +202,14 @@
     if (r.isEmpty()) return r;
     if (r.isRect()) return r;
 
-    Vector<Rect> reversed;
+    FatVector<Rect> reversed;
     reverseRectsResolvingJunctions(r.begin(), r.end(), reversed, direction_RTL);
 
     Region outputRegion;
-    reverseRectsResolvingJunctions(reversed.begin(), reversed.end(),
-            outputRegion.mStorage, direction_LTR);
-    outputRegion.mStorage.add(r.getBounds()); // to make region valid, mStorage must end with bounds
+    reverseRectsResolvingJunctions(reversed.data(), reversed.data() + reversed.size(),
+                                   outputRegion.mStorage, direction_LTR);
+    outputRegion.mStorage.push_back(
+            r.getBounds()); // to make region valid, mStorage must end with bounds
 
 #if defined(VALIDATE_REGIONS)
     validate(outputRegion, "T-Junction free region");
@@ -222,7 +224,8 @@
     validate(*this, "this->operator=");
     validate(rhs, "rhs.operator=");
 #endif
-    mStorage = rhs.mStorage;
+    mStorage.clear();
+    mStorage.insert(mStorage.begin(), rhs.mStorage.begin(), rhs.mStorage.end());
     return *this;
 }
 
@@ -231,7 +234,7 @@
     if (mStorage.size() >= 2) {
         const Rect bounds(getBounds());
         mStorage.clear();
-        mStorage.add(bounds);
+        mStorage.push_back(bounds);
     }
     return *this;
 }
@@ -255,25 +258,25 @@
 void Region::clear()
 {
     mStorage.clear();
-    mStorage.add(Rect(0,0));
+    mStorage.push_back(Rect(0, 0));
 }
 
 void Region::set(const Rect& r)
 {
     mStorage.clear();
-    mStorage.add(r);
+    mStorage.push_back(r);
 }
 
 void Region::set(int32_t w, int32_t h)
 {
     mStorage.clear();
-    mStorage.add(Rect(w, h));
+    mStorage.push_back(Rect(w, h));
 }
 
 void Region::set(uint32_t w, uint32_t h)
 {
     mStorage.clear();
-    mStorage.add(Rect(w, h));
+    mStorage.push_back(Rect(w, h));
 }
 
 bool Region::isTriviallyEqual(const Region& region) const {
@@ -299,8 +302,7 @@
 void Region::addRectUnchecked(int l, int t, int r, int b)
 {
     Rect rect(l,t,r,b);
-    size_t where = mStorage.size() - 1;
-    mStorage.insertAt(rect, where, 1);
+    mStorage.insert(mStorage.end() - 1, rect);
 }
 
 // ----------------------------------------------------------------------------
@@ -358,7 +360,7 @@
 
 Region& Region::scaleSelf(float sx, float sy) {
     size_t count = mStorage.size();
-    Rect* rects = mStorage.editArray();
+    Rect* rects = mStorage.data();
     while (count) {
         rects->left = static_cast<int32_t>(static_cast<float>(rects->left) * sx + 0.5f);
         rects->right = static_cast<int32_t>(static_cast<float>(rects->right) * sx + 0.5f);
@@ -463,10 +465,10 @@
 class Region::rasterizer : public region_operator<Rect>::region_rasterizer
 {
     Rect bounds;
-    Vector<Rect>& storage;
+    FatVector<Rect>& storage;
     Rect* head;
     Rect* tail;
-    Vector<Rect> span;
+    FatVector<Rect> span;
     Rect* cur;
 public:
     explicit rasterizer(Region& reg)
@@ -493,8 +495,8 @@
         flushSpan();
     }
     if (storage.size()) {
-        bounds.top = storage.itemAt(0).top;
-        bounds.bottom = storage.top().bottom;
+        bounds.top = storage.front().top;
+        bounds.bottom = storage.back().bottom;
         if (storage.size() == 1) {
             storage.clear();
         }
@@ -502,7 +504,7 @@
         bounds.left  = 0;
         bounds.right = 0;
     }
-    storage.add(bounds);
+    storage.push_back(bounds);
 }
 
 void Region::rasterizer::operator()(const Rect& rect)
@@ -517,15 +519,15 @@
             return;
         }
     }
-    span.add(rect);
-    cur = span.editArray() + (span.size() - 1);
+    span.push_back(rect);
+    cur = span.data() + (span.size() - 1);
 }
 
 void Region::rasterizer::flushSpan()
 {
     bool merge = false;
     if (tail-head == ssize_t(span.size())) {
-        Rect const* p = span.editArray();
+        Rect const* p = span.data();
         Rect const* q = head;
         if (p->top == q->bottom) {
             merge = true;
@@ -540,17 +542,17 @@
         }
     }
     if (merge) {
-        const int bottom = span[0].bottom;
+        const int bottom = span.front().bottom;
         Rect* r = head;
         while (r != tail) {
             r->bottom = bottom;
             r++;
         }
     } else {
-        bounds.left = min(span.itemAt(0).left, bounds.left);
-        bounds.right = max(span.top().right, bounds.right);
-        storage.appendVector(span);
-        tail = storage.editArray() + storage.size();
+        bounds.left = min(span.front().left, bounds.left);
+        bounds.right = max(span.back().right, bounds.right);
+        storage.insert(storage.end(), span.begin(), span.end());
+        tail = storage.data() + storage.size();
         head = tail - span.size();
     }
     span.clear();
@@ -558,7 +560,7 @@
 
 bool Region::validate(const Region& reg, const char* name, bool silent)
 {
-    if (reg.mStorage.isEmpty()) {
+    if (reg.mStorage.empty()) {
         ALOGE_IF(!silent, "%s: mStorage is empty, which is never valid", name);
         // return immediately as the code below assumes mStorage is non-empty
         return false;
@@ -697,9 +699,8 @@
     }
     sk_dst.op(sk_lhs, sk_rhs, sk_op);
 
-    if (sk_dst.isEmpty() && dst.isEmpty())
-        return;
-    
+    if (sk_dst.empty() && dst.empty()) return;
+
     bool same = true;
     Region::const_iterator head = dst.begin();
     Region::const_iterator const tail = dst.end();
@@ -794,7 +795,7 @@
         validate(reg, "translate (before)");
 #endif
         size_t count = reg.mStorage.size();
-        Rect* rects = reg.mStorage.editArray();
+        Rect* rects = reg.mStorage.data();
         while (count) {
             rects->offsetBy(dx, dy);
             rects++;
@@ -874,24 +875,25 @@
         ALOGE("Region::unflatten() failed, invalid region");
         return BAD_VALUE;
     }
-    mStorage = result.mStorage;
+    mStorage.clear();
+    mStorage.insert(mStorage.begin(), result.mStorage.begin(), result.mStorage.end());
     return NO_ERROR;
 }
 
 // ----------------------------------------------------------------------------
 
 Region::const_iterator Region::begin() const {
-    return mStorage.array();
+    return mStorage.data();
 }
 
 Region::const_iterator Region::end() const {
     // Workaround for b/77643177
     // mStorage should never be empty, but somehow it is and it's causing
     // an abort in ubsan
-    if (mStorage.isEmpty()) return mStorage.array();
+    if (mStorage.empty()) return mStorage.data();
 
     size_t numRects = isRect() ? 1 : mStorage.size() - 1;
-    return mStorage.array() + numRects;
+    return mStorage.data() + numRects;
 }
 
 Rect const* Region::getArray(size_t* count) const {
diff --git a/libs/ui/include/ui/FatVector.h b/libs/ui/include/ui/FatVector.h
new file mode 100644
index 0000000..25fe3a0
--- /dev/null
+++ b/libs/ui/include/ui/FatVector.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_REGION_FAT_VECTOR_H
+#define ANDROID_REGION_FAT_VECTOR_H
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <utils/Log.h>
+#include <type_traits>
+
+#include <vector>
+
+namespace android {
+
+template <typename T, size_t SIZE = 4>
+class InlineStdAllocator {
+public:
+    struct Allocation {
+    private:
+        Allocation(const Allocation&) = delete;
+        void operator=(const Allocation&) = delete;
+
+    public:
+        Allocation() {}
+        // char array instead of T array, so memory is uninitialized, with no destructors run
+        char array[sizeof(T) * SIZE];
+        bool inUse = false;
+    };
+
+    typedef T value_type; // needed to implement std::allocator
+    typedef T* pointer;   // needed to implement std::allocator
+
+    explicit InlineStdAllocator(Allocation& allocation) : mAllocation(allocation) {}
+    InlineStdAllocator(const InlineStdAllocator& other) : mAllocation(other.mAllocation) {}
+    ~InlineStdAllocator() {}
+
+    T* allocate(size_t num, const void* = 0) {
+        if (!mAllocation.inUse && num <= SIZE) {
+            mAllocation.inUse = true;
+            return static_cast<T*>(static_cast<void*>(mAllocation.array));
+        } else {
+            return static_cast<T*>(static_cast<void*>(malloc(num * sizeof(T))));
+        }
+    }
+
+    void deallocate(pointer p, size_t) {
+        if (p == static_cast<T*>(static_cast<void*>(mAllocation.array))) {
+            mAllocation.inUse = false;
+        } else {
+            // 'free' instead of delete here - destruction handled separately
+            free(p);
+        }
+    }
+    Allocation& mAllocation;
+};
+
+/**
+ * std::vector with SIZE elements preallocated into an internal buffer.
+ *
+ * Useful for avoiding the cost of malloc in cases where only SIZE or
+ * fewer elements are needed in the common case.
+ */
+template <typename T, size_t SIZE = 4>
+class FatVector : public std::vector<T, InlineStdAllocator<T, SIZE>> {
+public:
+    FatVector()
+          : std::vector<T, InlineStdAllocator<T, SIZE>>(InlineStdAllocator<T, SIZE>(mAllocation)) {
+        this->reserve(SIZE);
+    }
+
+    explicit FatVector(size_t capacity) : FatVector() { this->resize(capacity); }
+
+private:
+    typename InlineStdAllocator<T, SIZE>::Allocation mAllocation;
+};
+
+} // namespace android
+
+#endif // ANDROID_REGION_FAT_VECTOR_H
diff --git a/libs/ui/include/ui/Region.h b/libs/ui/include/ui/Region.h
index 2db3b10..6bb7b8d 100644
--- a/libs/ui/include/ui/Region.h
+++ b/libs/ui/include/ui/Region.h
@@ -21,13 +21,13 @@
 #include <sys/types.h>
 #include <ostream>
 
-#include <utils/Vector.h>
-
 #include <ui/Rect.h>
 #include <utils/Flattenable.h>
 
 #include <android-base/macros.h>
 
+#include "FatVector.h"
+
 #include <string>
 
 namespace android {
@@ -180,7 +180,7 @@
     // with an extra Rect as the last element which is set to the
     // bounds of the region. However, if the region is
     // a simple Rect then mStorage contains only that rect.
-    Vector<Rect> mStorage;
+    FatVector<Rect> mStorage;
 };
 
 
@@ -235,4 +235,3 @@
 }; // namespace android
 
 #endif // ANDROID_UI_REGION_H
-
diff --git a/libs/ui/include_vndk/ui/FatVector.h b/libs/ui/include_vndk/ui/FatVector.h
new file mode 120000
index 0000000..bf30166
--- /dev/null
+++ b/libs/ui/include_vndk/ui/FatVector.h
@@ -0,0 +1 @@
+../../include/ui/FatVector.h
\ No newline at end of file
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
index 5634adb..43e67c2 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
@@ -58,7 +58,7 @@
     ATRACE_INT("ContentFPS", contentFramerate);
 
     // Find the appropriate refresh rate with minimal error
-    auto iter = min_element(mAvailableRefreshRates.cbegin(), mAvailableRefreshRates.cend(),
+    auto iter = min_element(mPrimaryRefreshRates.cbegin(), mPrimaryRefreshRates.cend(),
                             [contentFramerate](const auto& lhs, const auto& rhs) -> bool {
                                 return std::abs(lhs->fps - contentFramerate) <
                                         std::abs(rhs->fps - contentFramerate);
@@ -71,7 +71,7 @@
     constexpr float MARGIN = 0.05f;
     float ratio = (*iter)->fps / contentFramerate;
     if (std::abs(std::round(ratio) - ratio) > MARGIN) {
-        while (iter != mAvailableRefreshRates.cend()) {
+        while (iter != mPrimaryRefreshRates.cend()) {
             ratio = (*iter)->fps / contentFramerate;
 
             if (std::abs(std::round(ratio) - ratio) <= MARGIN) {
@@ -110,7 +110,8 @@
     // refresh rate.
     if (layers.empty()) {
         *touchConsidered = touchActive;
-        return touchActive ? *mAvailableRefreshRates.back() : getCurrentRefreshRateByPolicyLocked();
+        return touchActive ? getMaxRefreshRateByPolicyLocked()
+                           : getCurrentRefreshRateByPolicyLocked();
     }
 
     int noVoteLayers = 0;
@@ -135,25 +136,25 @@
         }
     }
 
-    // Consider the touch event if there are no ExplicitDefault layers.
-    // ExplicitDefault are mostly interactive (as opposed to ExplicitExactOrMultiple)
-    // and therefore if those posted an explicit vote we should not change it
-    // if get get a touch event.
-    if (touchActive && explicitDefaultVoteLayers == 0) {
+    // Consider the touch event if there are no Explicit* layers. Otherwise wait until after we've
+    // selected a refresh rate to see if we should apply touch boost.
+    if (touchActive && explicitDefaultVoteLayers == 0 && explicitExactOrMultipleVoteLayers == 0) {
         *touchConsidered = true;
-        return *mAvailableRefreshRates.back();
+        return getMaxRefreshRateByPolicyLocked();
     }
 
     // Only if all layers want Min we should return Min
     if (noVoteLayers + minVoteLayers == layers.size()) {
-        return *mAvailableRefreshRates.front();
+        return getMinRefreshRateByPolicyLocked();
     }
 
+    const Policy* policy = getCurrentPolicyLocked();
+
     // Find the best refresh rate based on score
     std::vector<std::pair<const RefreshRate*, float>> scores;
-    scores.reserve(mAvailableRefreshRates.size());
+    scores.reserve(mAppRequestRefreshRates.size());
 
-    for (const auto refreshRate : mAvailableRefreshRates) {
+    for (const auto refreshRate : mAppRequestRefreshRates) {
         scores.emplace_back(refreshRate, 0.0f);
     }
 
@@ -166,6 +167,15 @@
         auto weight = layer.weight;
 
         for (auto i = 0u; i < scores.size(); i++) {
+            bool inPrimaryRange =
+                    scores[i].first->inPolicy(policy->primaryRange.min, policy->primaryRange.max);
+            if (!inPrimaryRange && layer.vote != LayerVoteType::ExplicitDefault &&
+                layer.vote != LayerVoteType::ExplicitExactOrMultiple) {
+                // Only layers with explicit frame rate settings are allowed to score refresh rates
+                // outside the primary range.
+                continue;
+            }
+
             // If the layer wants Max, give higher score to the higher refresh rate
             if (layer.vote == LayerVoteType::Max) {
                 const auto ratio = scores[i].first->fps / scores.back().first->fps;
@@ -249,6 +259,17 @@
             ? getBestRefreshRate(scores.rbegin(), scores.rend())
             : getBestRefreshRate(scores.begin(), scores.end());
 
+    // Consider the touch event if there are no ExplicitDefault layers. ExplicitDefault are mostly
+    // interactive (as opposed to ExplicitExactOrMultiple) and therefore if those posted an explicit
+    // vote we should not change it if we get a touch event. Only apply touch boost if it will
+    // actually increase the refresh rate over the normal selection.
+    const RefreshRate& touchRefreshRate = getMaxRefreshRateByPolicyLocked();
+    if (touchActive && explicitDefaultVoteLayers == 0 &&
+        bestRefreshRate->fps < touchRefreshRate.fps) {
+        *touchConsidered = true;
+        return touchRefreshRate;
+    }
+
     return *bestRefreshRate;
 }
 
@@ -278,12 +299,20 @@
 
 const RefreshRate& RefreshRateConfigs::getMinRefreshRateByPolicy() const {
     std::lock_guard lock(mLock);
-    return *mAvailableRefreshRates.front();
+    return getMinRefreshRateByPolicyLocked();
+}
+
+const RefreshRate& RefreshRateConfigs::getMinRefreshRateByPolicyLocked() const {
+    return *mPrimaryRefreshRates.front();
 }
 
 const RefreshRate& RefreshRateConfigs::getMaxRefreshRateByPolicy() const {
     std::lock_guard lock(mLock);
-        return *mAvailableRefreshRates.back();
+    return getMaxRefreshRateByPolicyLocked();
+}
+
+const RefreshRate& RefreshRateConfigs::getMaxRefreshRateByPolicyLocked() const {
+    return *mPrimaryRefreshRates.back();
 }
 
 const RefreshRate& RefreshRateConfigs::getCurrentRefreshRate() const {
@@ -297,8 +326,8 @@
 }
 
 const RefreshRate& RefreshRateConfigs::getCurrentRefreshRateByPolicyLocked() const {
-    if (std::find(mAvailableRefreshRates.begin(), mAvailableRefreshRates.end(),
-                  mCurrentRefreshRate) != mAvailableRefreshRates.end()) {
+    if (std::find(mAppRequestRefreshRates.begin(), mAppRequestRefreshRates.end(),
+                  mCurrentRefreshRate) != mAppRequestRefreshRates.end()) {
         return *mCurrentRefreshRate;
     }
     return *mRefreshRates.at(getCurrentPolicyLocked()->defaultConfig);
@@ -320,7 +349,7 @@
         const float fps = 1e9f / config->getVsyncPeriod();
         mRefreshRates.emplace(configId,
                               std::make_unique<RefreshRate>(configId, config,
-                                                            base::StringPrintf("%2.ffps", fps), fps,
+                                                            base::StringPrintf("%.0ffps", fps), fps,
                                                             RefreshRate::ConstructorTag(0)));
         if (configId == currentConfigId) {
             mCurrentRefreshRate = mRefreshRates.at(configId).get();
@@ -342,10 +371,11 @@
         return false;
     }
     const RefreshRate& refreshRate = *iter->second;
-    if (!refreshRate.inPolicy(policy.minRefreshRate, policy.maxRefreshRate)) {
+    if (!refreshRate.inPolicy(policy.primaryRange.min, policy.primaryRange.max)) {
         return false;
     }
-    return true;
+    return policy.appRequestRange.min <= policy.primaryRange.min &&
+            policy.appRequestRange.max >= policy.primaryRange.max;
 }
 
 status_t RefreshRateConfigs::setDisplayManagerPolicy(const Policy& policy) {
@@ -392,7 +422,7 @@
 
 bool RefreshRateConfigs::isConfigAllowed(HwcConfigIndexType config) const {
     std::lock_guard lock(mLock);
-    for (const RefreshRate* refreshRate : mAvailableRefreshRates) {
+    for (const RefreshRate* refreshRate : mAppRequestRefreshRates) {
         if (refreshRate->configId == config) {
             return true;
         }
@@ -430,33 +460,44 @@
     // Filter configs based on current policy and sort based on vsync period
     const Policy* policy = getCurrentPolicyLocked();
     const auto& defaultConfig = mRefreshRates.at(policy->defaultConfig)->hwcConfig;
-    ALOGV("constructAvailableRefreshRates: default %d group %d min %.2f max %.2f",
-          policy->defaultConfig.value(), defaultConfig->getConfigGroup(), policy->minRefreshRate,
-          policy->maxRefreshRate);
-    getSortedRefreshRateList(
-            [&](const RefreshRate& refreshRate) REQUIRES(mLock) {
-                const auto& hwcConfig = refreshRate.hwcConfig;
+    ALOGV("constructAvailableRefreshRates: default %d group %d primaryRange=[%.2f %.2f]"
+          " appRequestRange=[%.2f %.2f]",
+          policy->defaultConfig.value(), defaultConfig->getConfigGroup(), policy->primaryRange.min,
+          policy->primaryRange.max, policy->appRequestRange.min, policy->appRequestRange.max);
 
-                return hwcConfig->getHeight() == defaultConfig->getHeight() &&
-                        hwcConfig->getWidth() == defaultConfig->getWidth() &&
-                        hwcConfig->getDpiX() == defaultConfig->getDpiX() &&
-                        hwcConfig->getDpiY() == defaultConfig->getDpiY() &&
-                        (policy->allowGroupSwitching ||
-                         hwcConfig->getConfigGroup() == defaultConfig->getConfigGroup()) &&
-                        refreshRate.inPolicy(policy->minRefreshRate, policy->maxRefreshRate);
-            },
-            &mAvailableRefreshRates);
+    auto filterRefreshRates = [&](float min, float max, const char* listName,
+                                  std::vector<const RefreshRate*>* outRefreshRates) {
+        getSortedRefreshRateList(
+                [&](const RefreshRate& refreshRate) REQUIRES(mLock) {
+                    const auto& hwcConfig = refreshRate.hwcConfig;
 
-    std::string availableRefreshRates;
-    for (const auto& refreshRate : mAvailableRefreshRates) {
-        base::StringAppendF(&availableRefreshRates, "%s ", refreshRate->name.c_str());
-    }
+                    return hwcConfig->getHeight() == defaultConfig->getHeight() &&
+                            hwcConfig->getWidth() == defaultConfig->getWidth() &&
+                            hwcConfig->getDpiX() == defaultConfig->getDpiX() &&
+                            hwcConfig->getDpiY() == defaultConfig->getDpiY() &&
+                            (policy->allowGroupSwitching ||
+                             hwcConfig->getConfigGroup() == defaultConfig->getConfigGroup()) &&
+                            refreshRate.inPolicy(min, max);
+                },
+                outRefreshRates);
 
-    ALOGV("Available refresh rates: %s", availableRefreshRates.c_str());
-    LOG_ALWAYS_FATAL_IF(mAvailableRefreshRates.empty(),
-                        "No compatible display configs for default=%d min=%.0f max=%.0f",
-                        policy->defaultConfig.value(), policy->minRefreshRate,
-                        policy->maxRefreshRate);
+        LOG_ALWAYS_FATAL_IF(outRefreshRates->empty(),
+                            "No matching configs for %s range: min=%.0f max=%.0f", listName, min,
+                            max);
+        auto stringifyRefreshRates = [&]() -> std::string {
+            std::string str;
+            for (auto refreshRate : *outRefreshRates) {
+                base::StringAppendF(&str, "%s ", refreshRate->name.c_str());
+            }
+            return str;
+        };
+        ALOGV("%s refresh rates: %s", listName, stringifyRefreshRates().c_str());
+    };
+
+    filterRefreshRates(policy->primaryRange.min, policy->primaryRange.max, "primary",
+                       &mPrimaryRefreshRates);
+    filterRefreshRates(policy->appRequestRange.min, policy->appRequestRange.max, "app request",
+                       &mAppRequestRefreshRates);
 }
 
 } // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
index dea7e90..e8a7bef 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
@@ -107,18 +107,46 @@
             std::unordered_map<HwcConfigIndexType, std::unique_ptr<const RefreshRate>>;
 
     struct Policy {
+        struct Range {
+            float min = 0;
+            float max = std::numeric_limits<float>::max();
+
+            bool operator==(const Range& other) const {
+                return min == other.min && max == other.max;
+            }
+
+            bool operator!=(const Range& other) const { return !(*this == other); }
+        };
+
         // The default config, used to ensure we only initiate display config switches within the
         // same config group as defaultConfigId's group.
         HwcConfigIndexType defaultConfig;
-        // The min and max FPS allowed by the policy.
-        float minRefreshRate = 0;
-        float maxRefreshRate = std::numeric_limits<float>::max();
+        // The primary refresh rate range represents display manager's general guidance on the
+        // display configs we'll consider when switching refresh rates. Unless we get an explicit
+        // signal from an app, we should stay within this range.
+        Range primaryRange;
+        // The app request refresh rate range allows us to consider more display configs when
+        // switching refresh rates. Although we should generally stay within the primary range,
+        // specific considerations, such as layer frame rate settings specified via the
+        // setFrameRate() api, may cause us to go outside the primary range. We never go outside the
+        // app request range. The app request range will be greater than or equal to the primary
+        // refresh rate range, never smaller.
+        Range appRequestRange;
         // Whether or not we switch config groups to get the best frame rate. Only used by tests.
         bool allowGroupSwitching = false;
 
+        Policy() = default;
+        Policy(HwcConfigIndexType defaultConfig, const Range& range)
+              : Policy(defaultConfig, range, range) {}
+        Policy(HwcConfigIndexType defaultConfig, const Range& primaryRange,
+               const Range& appRequestRange)
+              : defaultConfig(defaultConfig),
+                primaryRange(primaryRange),
+                appRequestRange(appRequestRange) {}
+
         bool operator==(const Policy& other) const {
-            return defaultConfig == other.defaultConfig && minRefreshRate == other.minRefreshRate &&
-                    maxRefreshRate == other.maxRefreshRate &&
+            return defaultConfig == other.defaultConfig && primaryRange == other.primaryRange &&
+                    appRequestRange == other.appRequestRange &&
                     allowGroupSwitching == other.allowGroupSwitching;
         }
 
@@ -198,13 +226,15 @@
     // Returns the lowest refresh rate supported by the device. This won't change at runtime.
     const RefreshRate& getMinRefreshRate() const { return *mMinSupportedRefreshRate; }
 
-    // Returns the lowest refresh rate according to the current policy. May change in runtime.
+    // Returns the lowest refresh rate according to the current policy. May change at runtime. Only
+    // uses the primary range, not the app request range.
     const RefreshRate& getMinRefreshRateByPolicy() const EXCLUDES(mLock);
 
     // Returns the highest refresh rate supported by the device. This won't change at runtime.
     const RefreshRate& getMaxRefreshRate() const { return *mMaxSupportedRefreshRate; }
 
-    // Returns the highest refresh rate according to the current policy. May change in runtime.
+    // Returns the highest refresh rate according to the current policy. May change at runtime. Only
+    // uses the primary range, not the app request range.
     const RefreshRate& getMaxRefreshRateByPolicy() const EXCLUDES(mLock);
 
     // Returns the current refresh rate
@@ -243,6 +273,14 @@
     // display refresh period.
     std::pair<nsecs_t, nsecs_t> getDisplayFrames(nsecs_t layerPeriod, nsecs_t displayPeriod) const;
 
+    // Returns the lowest refresh rate according to the current policy. May change at runtime. Only
+    // uses the primary range, not the app request range.
+    const RefreshRate& getMinRefreshRateByPolicyLocked() const REQUIRES(mLock);
+
+    // Returns the highest refresh rate according to the current policy. May change at runtime. Only
+    // uses the primary range, not the app request range.
+    const RefreshRate& getMaxRefreshRateByPolicyLocked() const REQUIRES(mLock);
+
     // Returns the current refresh rate, if allowed. Otherwise the default that is allowed by
     // the policy.
     const RefreshRate& getCurrentRefreshRateByPolicyLocked() const REQUIRES(mLock);
@@ -254,9 +292,13 @@
     // object is initialized.
     AllRefreshRatesMapType mRefreshRates;
 
-    // The list of refresh rates which are available in the current policy, ordered by vsyncPeriod
-    // (the first element is the lowest refresh rate)
-    std::vector<const RefreshRate*> mAvailableRefreshRates GUARDED_BY(mLock);
+    // The list of refresh rates in the primary range of the current policy, ordered by vsyncPeriod
+    // (the first element is the lowest refresh rate).
+    std::vector<const RefreshRate*> mPrimaryRefreshRates GUARDED_BY(mLock);
+
+    // The list of refresh rates in the app request range of the current policy, ordered by
+    // vsyncPeriod (the first element is the lowest refresh rate).
+    std::vector<const RefreshRate*> mAppRequestRefreshRates GUARDED_BY(mLock);
 
     // The current config. This will change at runtime. This is set by SurfaceFlinger on
     // the main thread, and read by the Scheduler (and other objects) on other threads.
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 86bb6eb..217c777 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -574,10 +574,8 @@
 HwcConfigIndexType Scheduler::calculateRefreshRateConfigIndexType() {
     ATRACE_CALL();
 
-    // NOTE: If we remove the kernel idle timer, and use our internal idle timer, this
-    // code will have to be refactored. If Display Power is not in normal operation we want to be in
-    // performance mode. When coming back to normal mode, a grace period is given with
-    // DisplayPowerTimer.
+    // If Display Power is not in normal operation we want to be in performance mode. When coming
+    // back to normal mode, a grace period is given with DisplayPowerTimer.
     if (mDisplayPowerTimer &&
         (!mFeatures.isDisplayPowerStateNormal ||
          mFeatures.displayPowerTimer == TimerState::Reset)) {
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 79ea97b..4ca2074 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1003,7 +1003,7 @@
         } else {
             const HwcConfigIndexType config(mode);
             const float fps = mRefreshRateConfigs->getRefreshRateFromConfigId(config).getFps();
-            const scheduler::RefreshRateConfigs::Policy policy{config, fps, fps};
+            const scheduler::RefreshRateConfigs::Policy policy{config, {fps, fps}};
             constexpr bool kOverridePolicy = false;
 
             return setDesiredDisplayConfigSpecsInternal(display, policy, kOverridePolicy);
@@ -4383,17 +4383,19 @@
     scheduler::RefreshRateConfigs::Policy policy = mRefreshRateConfigs->getDisplayManagerPolicy();
     StringAppendF(&result,
                   "DesiredDisplayConfigSpecs (DisplayManager): default config ID: %d"
-                  ", min: %.2f Hz, max: %.2f Hz",
-                  policy.defaultConfig.value(), policy.minRefreshRate, policy.maxRefreshRate);
+                  ", primary range: [%.2f %.2f], app request range: [%.2f %.2f]\n\n",
+                  policy.defaultConfig.value(), policy.primaryRange.min, policy.primaryRange.max,
+                  policy.appRequestRange.min, policy.appRequestRange.max);
     StringAppendF(&result, "(config override by backdoor: %s)\n\n",
                   mDebugDisplayConfigSetByBackdoor ? "yes" : "no");
     scheduler::RefreshRateConfigs::Policy currentPolicy = mRefreshRateConfigs->getCurrentPolicy();
     if (currentPolicy != policy) {
         StringAppendF(&result,
                       "DesiredDisplayConfigSpecs (Override): default config ID: %d"
-                      ", min: %.2f Hz, max: %.2f Hz\n\n",
-                      currentPolicy.defaultConfig.value(), currentPolicy.minRefreshRate,
-                      currentPolicy.maxRefreshRate);
+                      ", primary range: [%.2f %.2f], app request range: [%.2f %.2f]\n\n",
+                      currentPolicy.defaultConfig.value(), currentPolicy.primaryRange.min,
+                      currentPolicy.primaryRange.max, currentPolicy.appRequestRange.min,
+                      currentPolicy.appRequestRange.max);
     }
 
     mScheduler->dump(mAppConnectionHandle, result);
@@ -5928,9 +5930,11 @@
     }
     scheduler::RefreshRateConfigs::Policy currentPolicy = mRefreshRateConfigs->getCurrentPolicy();
 
-    ALOGV("Setting desired display config specs: defaultConfig: %d min: %.f max: %.f",
-          currentPolicy.defaultConfig.value(), currentPolicy.minRefreshRate,
-          currentPolicy.maxRefreshRate);
+    ALOGV("Setting desired display config specs: defaultConfig: %d primaryRange: [%.0f %.0f]"
+          " expandedRange: [%.0f %.0f]",
+          currentPolicy.defaultConfig.value(), currentPolicy.primaryRange.min,
+          currentPolicy.primaryRange.max, currentPolicy.appRequestRange.min,
+          currentPolicy.appRequestRange.max);
 
     // TODO(b/140204874): This hack triggers a notification that something has changed, so
     // that listeners that care about a change in allowed configs can get the notification.
@@ -5963,8 +5967,11 @@
 }
 
 status_t SurfaceFlinger::setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
-                                                      int32_t defaultConfig, float minRefreshRate,
-                                                      float maxRefreshRate) {
+                                                      int32_t defaultConfig,
+                                                      float primaryRefreshRateMin,
+                                                      float primaryRefreshRateMax,
+                                                      float appRequestRefreshRateMin,
+                                                      float appRequestRefreshRateMax) {
     ATRACE_CALL();
 
     if (!displayToken) {
@@ -5982,7 +5989,9 @@
             return INVALID_OPERATION;
         } else {
             using Policy = scheduler::RefreshRateConfigs::Policy;
-            const Policy policy{HwcConfigIndexType(defaultConfig), minRefreshRate, maxRefreshRate};
+            const Policy policy{HwcConfigIndexType(defaultConfig),
+                                {primaryRefreshRateMin, primaryRefreshRateMax},
+                                {appRequestRefreshRateMin, appRequestRefreshRateMax}};
             constexpr bool kOverridePolicy = false;
 
             return setDesiredDisplayConfigSpecsInternal(display, policy, kOverridePolicy);
@@ -5994,11 +6003,14 @@
 
 status_t SurfaceFlinger::getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
                                                       int32_t* outDefaultConfig,
-                                                      float* outMinRefreshRate,
-                                                      float* outMaxRefreshRate) {
+                                                      float* outPrimaryRefreshRateMin,
+                                                      float* outPrimaryRefreshRateMax,
+                                                      float* outAppRequestRefreshRateMin,
+                                                      float* outAppRequestRefreshRateMax) {
     ATRACE_CALL();
 
-    if (!displayToken || !outDefaultConfig || !outMinRefreshRate || !outMaxRefreshRate) {
+    if (!displayToken || !outDefaultConfig || !outPrimaryRefreshRateMin ||
+        !outPrimaryRefreshRateMax || !outAppRequestRefreshRateMin || !outAppRequestRefreshRateMax) {
         return BAD_VALUE;
     }
 
@@ -6012,8 +6024,10 @@
         scheduler::RefreshRateConfigs::Policy policy =
                 mRefreshRateConfigs->getDisplayManagerPolicy();
         *outDefaultConfig = policy.defaultConfig.value();
-        *outMinRefreshRate = policy.minRefreshRate;
-        *outMaxRefreshRate = policy.maxRefreshRate;
+        *outPrimaryRefreshRateMin = policy.primaryRange.min;
+        *outPrimaryRefreshRateMax = policy.primaryRange.max;
+        *outAppRequestRefreshRateMin = policy.appRequestRange.min;
+        *outAppRequestRefreshRateMax = policy.appRequestRange.max;
         return NO_ERROR;
     } else if (display->isVirtual()) {
         return INVALID_OPERATION;
@@ -6023,8 +6037,10 @@
 
         *outDefaultConfig = getHwComposer().getActiveConfigIndex(*displayId);
         auto vsyncPeriod = getHwComposer().getActiveConfig(*displayId)->getVsyncPeriod();
-        *outMinRefreshRate = 1e9f / vsyncPeriod;
-        *outMaxRefreshRate = 1e9f / vsyncPeriod;
+        *outPrimaryRefreshRateMin = 1e9f / vsyncPeriod;
+        *outPrimaryRefreshRateMax = 1e9f / vsyncPeriod;
+        *outAppRequestRefreshRateMin = 1e9f / vsyncPeriod;
+        *outAppRequestRefreshRateMax = 1e9f / vsyncPeriod;
         return NO_ERROR;
     }
 }
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 294a52f..f3984ed 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -493,10 +493,15 @@
                                        const sp<IRegionSamplingListener>& listener) override;
     status_t removeRegionSamplingListener(const sp<IRegionSamplingListener>& listener) override;
     status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken, int32_t displayModeId,
-                                          float minRefreshRate, float maxRefreshRate) override;
+                                          float primaryRefreshRateMin, float primaryRefreshRateMax,
+                                          float appRequestRefreshRateMin,
+                                          float appRequestRefreshRateMax) override;
     status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
-                                          int32_t* outDefaultConfig, float* outMinRefreshRate,
-                                          float* outMaxRefreshRate) override;
+                                          int32_t* outDefaultConfig,
+                                          float* outPrimaryRefreshRateMin,
+                                          float* outPrimaryRefreshRateMax,
+                                          float* outAppRequestRefreshRateMin,
+                                          float* outAppRequestRefreshRateMax) override;
     status_t getDisplayBrightnessSupport(const sp<IBinder>& displayToken,
                                          bool* outSupport) const override;
     status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) override;
diff --git a/services/surfaceflinger/surfaceflinger.rc b/services/surfaceflinger/surfaceflinger.rc
index d3942e8..575e70d 100644
--- a/services/surfaceflinger/surfaceflinger.rc
+++ b/services/surfaceflinger/surfaceflinger.rc
@@ -4,7 +4,7 @@
     group graphics drmrpc readproc
     capabilities SYS_NICE
     onrestart restart zygote
-    writepid /dev/stune/foreground/tasks
+    task_profiles HighPerformance
     socket pdx/system/vr/display/client     stream 0666 system graphics u:object_r:pdx_display_client_endpoint_socket:s0
     socket pdx/system/vr/display/manager    stream 0666 system graphics u:object_r:pdx_display_manager_endpoint_socket:s0
     socket pdx/system/vr/display/vsync      stream 0666 system graphics u:object_r:pdx_display_vsync_endpoint_socket:s0
diff --git a/services/surfaceflinger/tests/Credentials_test.cpp b/services/surfaceflinger/tests/Credentials_test.cpp
index 507d28b..c136708 100644
--- a/services/surfaceflinger/tests/Credentials_test.cpp
+++ b/services/surfaceflinger/tests/Credentials_test.cpp
@@ -215,14 +215,21 @@
 TEST_F(CredentialsTest, SetDesiredDisplayConfigsTest) {
     const auto display = SurfaceComposerClient::getInternalDisplayToken();
     int32_t defaultConfig;
-    float minFps;
-    float maxFps;
-    status_t res = SurfaceComposerClient::getDesiredDisplayConfigSpecs(display, &defaultConfig,
-                                                                       &minFps, &maxFps);
+    float primaryFpsMin;
+    float primaryFpsMax;
+    float appRequestFpsMin;
+    float appRequestFpsMax;
+    status_t res =
+            SurfaceComposerClient::getDesiredDisplayConfigSpecs(display, &defaultConfig,
+                                                                &primaryFpsMin, &primaryFpsMax,
+                                                                &appRequestFpsMin,
+                                                                &appRequestFpsMax);
     ASSERT_EQ(res, NO_ERROR);
     std::function<status_t()> condition = [=]() {
-        return SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, defaultConfig, minFps,
-                                                                   maxFps);
+        return SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, defaultConfig,
+                                                                   primaryFpsMin, primaryFpsMax,
+                                                                   appRequestFpsMin,
+                                                                   appRequestFpsMax);
     };
     ASSERT_NO_FATAL_FAILURE(checkWithPrivileges<status_t>(condition, NO_ERROR, PERMISSION_DENIED));
 }
diff --git a/services/surfaceflinger/tests/DisplayConfigs_test.cpp b/services/surfaceflinger/tests/DisplayConfigs_test.cpp
index 0ed2ffb..debfe83 100644
--- a/services/surfaceflinger/tests/DisplayConfigs_test.cpp
+++ b/services/surfaceflinger/tests/DisplayConfigs_test.cpp
@@ -39,11 +39,16 @@
 
 TEST_F(RefreshRateRangeTest, setAllConfigs) {
     int32_t initialDefaultConfig;
-    float initialMin;
-    float initialMax;
+    float initialPrimaryMin;
+    float initialPrimaryMax;
+    float initialAppRequestMin;
+    float initialAppRequestMax;
     status_t res = SurfaceComposerClient::getDesiredDisplayConfigSpecs(mDisplayToken,
                                                                        &initialDefaultConfig,
-                                                                       &initialMin, &initialMax);
+                                                                       &initialPrimaryMin,
+                                                                       &initialPrimaryMax,
+                                                                       &initialAppRequestMin,
+                                                                       &initialAppRequestMax);
     ASSERT_EQ(res, NO_ERROR);
 
     Vector<DisplayConfig> configs;
@@ -53,22 +58,33 @@
     for (size_t i = 0; i < configs.size(); i++) {
         res = SurfaceComposerClient::setDesiredDisplayConfigSpecs(mDisplayToken, i,
                                                                   configs[i].refreshRate,
+                                                                  configs[i].refreshRate,
+                                                                  configs[i].refreshRate,
                                                                   configs[i].refreshRate);
         ASSERT_EQ(res, NO_ERROR);
 
         int defaultConfig;
-        float minRefreshRate;
-        float maxRefreshRate;
+        float primaryRefreshRateMin;
+        float primaryRefreshRateMax;
+        float appRequestRefreshRateMin;
+        float appRequestRefreshRateMax;
         res = SurfaceComposerClient::getDesiredDisplayConfigSpecs(mDisplayToken, &defaultConfig,
-                                                                  &minRefreshRate, &maxRefreshRate);
+                                                                  &primaryRefreshRateMin,
+                                                                  &primaryRefreshRateMax,
+                                                                  &appRequestRefreshRateMin,
+                                                                  &appRequestRefreshRateMax);
         ASSERT_EQ(res, NO_ERROR);
         ASSERT_EQ(defaultConfig, i);
-        ASSERT_EQ(minRefreshRate, configs[i].refreshRate);
-        ASSERT_EQ(maxRefreshRate, configs[i].refreshRate);
+        ASSERT_EQ(primaryRefreshRateMin, configs[i].refreshRate);
+        ASSERT_EQ(primaryRefreshRateMax, configs[i].refreshRate);
+        ASSERT_EQ(appRequestRefreshRateMin, configs[i].refreshRate);
+        ASSERT_EQ(appRequestRefreshRateMax, configs[i].refreshRate);
     }
 
     res = SurfaceComposerClient::setDesiredDisplayConfigSpecs(mDisplayToken, initialDefaultConfig,
-                                                              initialMin, initialMax);
+                                                              initialPrimaryMin, initialPrimaryMax,
+                                                              initialAppRequestMin,
+                                                              initialAppRequestMax);
     ASSERT_EQ(res, NO_ERROR);
 }
 
diff --git a/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp b/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp
index 32c58ad..a03fd89 100644
--- a/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp
+++ b/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp
@@ -443,6 +443,8 @@
                 EXPECT_EQ(NO_ERROR,
                           SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, i,
                                                                               config.refreshRate,
+                                                                              config.refreshRate,
+                                                                              config.refreshRate,
                                                                               config.refreshRate));
                 waitForDisplayTransaction();
                 EXPECT_TRUE(waitForConfigChangedEvent(EXTERNAL_DISPLAY, i));
@@ -547,6 +549,8 @@
                 EXPECT_EQ(NO_ERROR,
                           SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, i,
                                                                               config.refreshRate,
+                                                                              config.refreshRate,
+                                                                              config.refreshRate,
                                                                               config.refreshRate));
                 waitForDisplayTransaction();
                 EXPECT_TRUE(waitForConfigChangedEvent(EXTERNAL_DISPLAY, i));
@@ -659,9 +663,11 @@
             const auto& config = configs[i];
             if (config.resolution.getWidth() == 800 && config.refreshRate == 1e9f / 11'111'111) {
                 EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, i,
-                                                                              configs[i].refreshRate,
-                                                                              configs[i].refreshRate));
+                          SurfaceComposerClient::
+                                  setDesiredDisplayConfigSpecs(display, i, configs[i].refreshRate,
+                                                               configs[i].refreshRate,
+                                                               configs[i].refreshRate,
+                                                               configs[i].refreshRate));
                 waitForDisplayTransaction();
                 EXPECT_TRUE(waitForConfigChangedEvent(EXTERNAL_DISPLAY, i));
                 break;
@@ -706,6 +712,8 @@
                 EXPECT_EQ(NO_ERROR,
                           SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, i,
                                                                               config.refreshRate,
+                                                                              config.refreshRate,
+                                                                              config.refreshRate,
                                                                               config.refreshRate));
                 waitForDisplayTransaction();
                 EXPECT_TRUE(waitForConfigChangedEvent(EXTERNAL_DISPLAY, i));
@@ -751,6 +759,8 @@
                 EXPECT_EQ(NO_ERROR,
                           SurfaceComposerClient::setDesiredDisplayConfigSpecs(display, i,
                                                                               config.refreshRate,
+                                                                              config.refreshRate,
+                                                                              config.refreshRate,
                                                                               config.refreshRate));
                 waitForDisplayTransaction();
                 EXPECT_TRUE(waitForConfigChangedEvent(EXTERNAL_DISPLAY, i));
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index 2ceb89c..47addc8 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -166,8 +166,8 @@
     auto refreshRateConfigs =
             std::make_unique<RefreshRateConfigs>(m60OnlyConfigDevice,
                                                  /*currentConfigId=*/HWC_CONFIG_ID_60);
-    ASSERT_LT(refreshRateConfigs->setDisplayManagerPolicy({HwcConfigIndexType(10), 60, 60}), 0);
-    ASSERT_LT(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 20, 40}), 0);
+    ASSERT_LT(refreshRateConfigs->setDisplayManagerPolicy({HwcConfigIndexType(10), {60, 60}}), 0);
+    ASSERT_LT(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {20, 40}}), 0);
 }
 
 TEST_F(RefreshRateConfigsTest, twoDeviceConfigs_storesFullRefreshRateMap) {
@@ -201,7 +201,7 @@
     ASSERT_EQ(mExpected60Config, minRate60);
     ASSERT_EQ(mExpected60Config, performanceRate60);
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, 60, 90}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, {60, 90}}), 0);
     refreshRateConfigs->setCurrentConfigId(HWC_CONFIG_ID_90);
 
     const auto& minRate90 = refreshRateConfigs->getMinRefreshRateByPolicy();
@@ -226,7 +226,7 @@
     ASSERT_EQ(mExpected60Config, minRate60);
     ASSERT_EQ(mExpected60Config, performanceRate60);
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, 60, 90}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, {60, 90}}), 0);
     refreshRateConfigs->setCurrentConfigId(HWC_CONFIG_ID_90);
 
     const auto& minRate90 = refreshRateConfigs->getMinRefreshRateByPolicy();
@@ -248,7 +248,7 @@
     ASSERT_EQ(mExpected60Config, minRate);
     ASSERT_EQ(mExpected90Config, performanceRate);
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 60, 60}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {60, 60}}), 0);
 
     auto& minRate60 = refreshRateConfigs->getMinRefreshRateByPolicy();
     auto& performanceRate60 = refreshRateConfigs->getMaxRefreshRateByPolicy();
@@ -271,7 +271,7 @@
         EXPECT_EQ(current.getConfigId(), HWC_CONFIG_ID_90);
     }
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, 90, 90}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, {90, 90}}), 0);
     {
         auto& current = refreshRateConfigs->getCurrentRefreshRate();
         EXPECT_EQ(current.getConfigId(), HWC_CONFIG_ID_90);
@@ -298,7 +298,7 @@
     EXPECT_EQ(mExpected60Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(24.0f)));
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 60, 60}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {60, 60}}), 0);
     EXPECT_EQ(mExpected60Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(90.0f)));
     EXPECT_EQ(mExpected60Config,
@@ -310,7 +310,7 @@
     EXPECT_EQ(mExpected60Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(24.0f)));
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, 90, 90}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, {90, 90}}), 0);
     EXPECT_EQ(mExpected90Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(90.0f)));
     EXPECT_EQ(mExpected90Config,
@@ -321,7 +321,7 @@
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(30.0f)));
     EXPECT_EQ(mExpected90Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(24.0f)));
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 0, 120}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {0, 120}}), 0);
     EXPECT_EQ(mExpected90Config,
               refreshRateConfigs->getRefreshRateForContent(makeLayerRequirements(90.0f)));
     EXPECT_EQ(mExpected60Config,
@@ -407,7 +407,7 @@
                                                              &ignored));
 
     lr.name = "";
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 60, 60}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {60, 60}}), 0);
 
     lr.vote = LayerVoteType::Min;
     EXPECT_EQ(mExpected60Config,
@@ -445,7 +445,7 @@
               refreshRateConfigs->getRefreshRateForContentV2(layers, /*touchActive*/ false,
                                                              &ignored));
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, 90, 90}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_90, {90, 90}}), 0);
 
     lr.vote = LayerVoteType::Min;
     EXPECT_EQ(mExpected90Config,
@@ -483,7 +483,7 @@
               refreshRateConfigs->getRefreshRateForContentV2(layers, /*touchActive*/ false,
                                                              &ignored));
 
-    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, 0, 120}), 0);
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy({HWC_CONFIG_ID_60, {0, 120}}), 0);
     lr.vote = LayerVoteType::Min;
     EXPECT_EQ(mExpected60Config,
               refreshRateConfigs->getRefreshRateForContentV2(layers, /*touchActive*/ false,
@@ -1130,7 +1130,8 @@
     lr1.desiredRefreshRate = 60.0f;
     lr1.name = "60Hz ExplicitExactOrMultiple";
     lr2.vote = LayerVoteType::Heuristic;
-    lr2.name = "NoVote";
+    lr2.desiredRefreshRate = 60.0f;
+    lr2.name = "60Hz Heuristic";
     refreshRateConfigs->getRefreshRateForContentV2(layers, true, &touchConsidered);
     EXPECT_EQ(true, touchConsidered);
 
@@ -1138,7 +1139,8 @@
     lr1.desiredRefreshRate = 60.0f;
     lr1.name = "60Hz ExplicitExactOrMultiple";
     lr2.vote = LayerVoteType::Heuristic;
-    lr2.name = "NoVote";
+    lr2.desiredRefreshRate = 60.0f;
+    lr2.name = "60Hz Heuristic";
     refreshRateConfigs->getRefreshRateForContentV2(layers, true, &touchConsidered);
     EXPECT_EQ(false, touchConsidered);
 
@@ -1146,15 +1148,17 @@
     lr1.desiredRefreshRate = 60.0f;
     lr1.name = "60Hz ExplicitExactOrMultiple";
     lr2.vote = LayerVoteType::Heuristic;
-    lr2.name = "NoVote";
+    lr2.desiredRefreshRate = 60.0f;
+    lr2.name = "60Hz Heuristic";
     refreshRateConfigs->getRefreshRateForContentV2(layers, true, &touchConsidered);
     EXPECT_EQ(true, touchConsidered);
 
     lr1.vote = LayerVoteType::ExplicitDefault;
     lr1.desiredRefreshRate = 60.0f;
-    lr1.name = "60Hz ExplicitExactrMultiple";
+    lr1.name = "60Hz ExplicitExactOrMultiple";
     lr2.vote = LayerVoteType::Heuristic;
-    lr2.name = "NoVote";
+    lr2.desiredRefreshRate = 60.0f;
+    lr2.name = "60Hz Heuristic";
     refreshRateConfigs->getRefreshRateForContentV2(layers, true, &touchConsidered);
     EXPECT_EQ(false, touchConsidered);
 }
@@ -1227,6 +1231,59 @@
                       .getConfigId());
 }
 
+TEST_F(RefreshRateConfigsTest, primaryVsAppRequestPolicy) {
+    auto refreshRateConfigs =
+            std::make_unique<RefreshRateConfigs>(m60_90Device,
+                                                 /*currentConfigId=*/HWC_CONFIG_ID_60);
+
+    auto layers = std::vector<LayerRequirement>{LayerRequirement{.weight = 1.0f}};
+    layers[0].name = "Test layer";
+
+    // Return the config ID from calling getRefreshRateForContentV2() for a single layer with the
+    // given voteType and fps.
+    auto getFrameRate = [&](LayerVoteType voteType, float fps,
+                            bool touchActive = false) -> HwcConfigIndexType {
+        layers[0].vote = voteType;
+        layers[0].desiredRefreshRate = fps;
+        bool touchConsidered;
+        return refreshRateConfigs->getRefreshRateForContentV2(layers, touchActive, &touchConsidered)
+                .getConfigId();
+    };
+
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy(
+                      {HWC_CONFIG_ID_60, {60.f, 60.f}, {60.f, 90.f}}),
+              0);
+    bool touchConsidered;
+    EXPECT_EQ(HWC_CONFIG_ID_60,
+              refreshRateConfigs
+                      ->getRefreshRateForContentV2({}, /*touchActive=*/false, &touchConsidered)
+                      .getConfigId());
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::NoVote, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Min, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Max, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Heuristic, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitDefault, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f));
+
+    // Touch boost should be restricted to the primary range.
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Max, 90.f, /*touch=*/true));
+    // When we're higher than the primary range max due to a layer frame rate setting, touch boost
+    // shouldn't drag us back down to the primary range max.
+    EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitDefault, 90.f, /*touch=*/true));
+    EXPECT_EQ(HWC_CONFIG_ID_90,
+              getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f, /*touch=*/true));
+
+    ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy(
+                      {HWC_CONFIG_ID_60, {60.f, 60.f}, {60.f, 60.f}}),
+              0);
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::NoVote, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Min, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Max, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Heuristic, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::ExplicitDefault, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f));
+}
+
 } // namespace
 } // namespace scheduler
 } // namespace android
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index a44b9e7..d3ed88d 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -1478,7 +1478,7 @@
     ANativeWindowBuffer* buffer;
     int fence_fd;
     err = window->dequeueBuffer(window, &buffer, &fence_fd);
-    if (err == android::TIMED_OUT) {
+    if (err == android::TIMED_OUT || err == android::INVALID_OPERATION) {
         ALOGW("dequeueBuffer timed out: %s (%d)", strerror(-err), err);
         return timeout ? VK_TIMEOUT : VK_NOT_READY;
     } else if (err != android::OK) {