diff --git a/nx/include/switch/gfx/nvioctl.h b/nx/include/switch/gfx/nvioctl.h
index 8fa7e3da..375f976b 100644
--- a/nx/include/switch/gfx/nvioctl.h
+++ b/nx/include/switch/gfx/nvioctl.h
@@ -87,6 +87,7 @@ Result nvioctlNvmap_Alloc(u32 fd, u32 nvmap_handle, u32 heapmask, u32 flags, u32
 
 Result nvioctlChannel_SetNvmapFd(u32 fd, u32 nvmap_fd);
 Result nvioctlChannel_AllocObjCtx(u32 fd, u32 class_num, u32 flags);
+Result nvioctlChannel_ZCullBind(u32 fd, u32 in[4]);
 Result nvioctlChannel_SetErrorNotifier(u32 fd, u64 offset, u64 size, u32 nvmap_handle);
 Result nvioctlChannel_SetPriority(u32 fd, u32 priority);
 Result nvioctlChannel_AllocGPFIFOEx2(u32 fd, u32 num_entries, u32 flags, u32 unk0, u32 unk1, u32 unk2, u32 unk3, nvioctl_fence *fence_out);
diff --git a/nx/source/gfx/nvgfx.c b/nx/source/gfx/nvgfx.c
index 32f26691..b868403f 100644
--- a/nx/source/gfx/nvgfx.c
+++ b/nx/source/gfx/nvgfx.c
@@ -26,7 +26,7 @@ static nvioctl_fence g_nvgfx_nvhost_fence;
 static u8 *g_nvgfx_nvhost_userdata;
 static size_t g_nvgfx_nvhost_userdata_size;
 
-static nvmapobj nvmap_objs[3];
+static nvmapobj nvmap_objs[5];
 
 Result nvmapobjInitialize(nvmapobj *obj, size_t size) {
     Result rc=0;
@@ -76,6 +76,8 @@ Result nvgfxInitialize(void) {
     Result rc=0;
     if(g_nvgfxInitialized)return 0;
 
+    u32 zcullbind_data[4] = {0x58000, 0x5, 0x2, 0x0};
+
     g_nvgfx_fd_nvhostctrlgpu = 0;
     g_nvgfx_fd_nvhostasgpu = 0;
     g_nvgfx_fd_nvmap = 0;
@@ -95,6 +97,8 @@ Result nvgfxInitialize(void) {
     if (R_SUCCEEDED(rc)) rc = nvmapobjInitialize(&nvmap_objs[0], 0x1000);
     if (R_SUCCEEDED(rc)) rc = nvmapobjInitialize(&nvmap_objs[1], 0x10000);
     if (R_SUCCEEDED(rc)) rc = nvmapobjInitialize(&nvmap_objs[2], 0x1000);
+    if (R_SUCCEEDED(rc)) rc = nvmapobjInitialize(&nvmap_objs[3], 0x10000);
+    if (R_SUCCEEDED(rc)) rc = nvmapobjInitialize(&nvmap_objs[4], 0x59000);
 
     if (R_SUCCEEDED(rc)) { //Unknown what size/etc is used officially.
         g_nvgfx_nvhost_userdata_size = 0x1000;
@@ -155,6 +159,20 @@ Result nvgfxInitialize(void) {
 
     if (R_SUCCEEDED(rc)) rc = nvioctlChannel_SetPriority(g_nvgfx_fd_nvhostgpu, NVIOCTL_CHANNEL_PRIORITY_medium);
 
+    if (R_SUCCEEDED(rc)) rc = nvmapobjSetup(&nvmap_objs[3], 0, 0, 0x20000, 0);
+
+    if (R_SUCCEEDED(rc)) rc = nvioctlNvhostAsGpu_MapBufferEx(g_nvgfx_fd_nvhostasgpu, 0, 0, nvmap_objs[3].handle, 0x10000, 0, 0, 0, NULL);
+    if (R_SUCCEEDED(rc)) rc = nvioctlNvhostAsGpu_MapBufferEx(g_nvgfx_fd_nvhostasgpu, 0, 0xfe, nvmap_objs[3].handle, 0x10000, 0, 0, 0, NULL);
+
+    if (R_SUCCEEDED(rc)) rc = nvmapobjSetup(&nvmap_objs[4], 0, 0x1, 0x20000, 0);
+
+    if (R_SUCCEEDED(rc)) rc = nvioctlNvhostAsGpu_MapBufferEx(g_nvgfx_fd_nvhostasgpu, 4, 0, nvmap_objs[4].handle, 0x10000, 0, 0, 0, NULL);
+    if (R_SUCCEEDED(rc)) rc = nvioctlNvhostAsGpu_MapBufferEx(g_nvgfx_fd_nvhostasgpu, 4, 0xfe, nvmap_objs[4].handle, 0x10000, 0, 0, 0, NULL);
+
+    if (R_SUCCEEDED(rc)) rc = nvioctlChannel_ZCullBind(g_nvgfx_fd_nvhostgpu, zcullbind_data);
+
+    //Officially, ipcQueryPointerBufferSize and NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO are used here with the duplicate session setup during nv serv init.
+
     //if (R_SUCCEEDED(rc)) rc = -1;
 
     if (R_FAILED(rc)) {
diff --git a/nx/source/gfx/nvioctl.c b/nx/source/gfx/nvioctl.c
index f2e1bb94..6deab847 100644
--- a/nx/source/gfx/nvioctl.c
+++ b/nx/source/gfx/nvioctl.c
@@ -266,6 +266,17 @@ Result nvioctlChannel_AllocObjCtx(u32 fd, u32 class_num, u32 flags) {
     return nvIoctl(fd, _IOWR(0x48, 0x09, data), &data);
 }
 
+Result nvioctlChannel_ZCullBind(u32 fd, u32 in[4]) {
+    struct {
+        u32 in[4];
+    } data;
+
+    memset(&data, 0, sizeof(data));
+    memcpy(data.in, in, sizeof(data.in));
+
+    return nvIoctl(fd, _IOWR(0x48, 0x0B, data), &data);
+}
+
 Result nvioctlChannel_SetErrorNotifier(u32 fd, u64 offset, u64 size, u32 nvmap_handle) {
     struct {
         u64 offset;//in