mesa radv prefer vram always

mesa_radv_prefer_vram_always.patch

diff --git a/src/amd/vulkan/radv_debug.h b/src/amd/vulkan/radv_debug.h
index 2379a1fc364..1e09d9aa543 100644
--- a/src/amd/vulkan/radv_debug.h
+++ b/src/amd/vulkan/radv_debug.h
@@ -94,6 +94,7 @@ enum {
    RADV_PERFTEST_NIR_CACHE = 1u << 14,
    RADV_PERFTEST_RT_WAVE_32 = 1u << 15,
    RADV_PERFTEST_VIDEO_ENCODE = 1u << 16,
+   RADV_PERFTEST_NO_GTT = 1u << 17,
 };
 
 enum {
diff --git a/src/amd/vulkan/radv_instance.c b/src/amd/vulkan/radv_instance.c
index 8104a18d836..166cd243ccd 100644
--- a/src/amd/vulkan/radv_instance.c
+++ b/src/amd/vulkan/radv_instance.c
@@ -86,6 +86,7 @@ static const struct debug_control radv_debug_options[] = {{"nofastclears", RADV_
                                                           {"asm", RADV_DEBUG_DUMP_ASM},
                                                           {"ir", RADV_DEBUG_DUMP_BACKEND_IR},
                                                           {"pso_history", RADV_DEBUG_PSO_HISTORY},
+                                                          {"nogtt", RADV_PERFTEST_NO_GTT},
                                                           {NULL, 0}};
 
 const char *
diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
index 54c7cefb23c..8d3aac57261 100644
--- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
+++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
@@ -470,6 +470,7 @@ radv_amdgpu_winsys_bo_create(struct radeon_winsys *_ws, uint64_t size, unsigned
        * e.g. Horizon Zero Dawn allocates more memory than we have
        * VRAM.
        */
+   if (!(ws->perftest & RADV_PERFTEST_NO_GTT))
       request.preferred_heap |= AMDGPU_GEM_DOMAIN_GTT;
    }