radv: Expose VK_KHX_multiview.

Reviewed-by: Dave Airlie <airlied@redhat.com>
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 1a7831e..fec965c 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -178,6 +178,10 @@
 		.extensionName = VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME,
 		.specVersion = 1,
 	},
+	{
+		.extensionName = VK_KHX_MULTIVIEW_EXTENSION_NAME,
+		.specVersion = 1,
+	},
 };
 
 static VkResult
@@ -628,6 +632,13 @@
 			features->variablePointers = false;
 			break;
 		}
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHX: {
+			VkPhysicalDeviceMultiviewFeaturesKHX *features = (VkPhysicalDeviceMultiviewFeaturesKHX*)ext;
+			features->multiview = true;
+			features->multiviewGeometryShader = true;
+			features->multiviewTessellationShader = true;
+			break;
+		}
 		default:
 			break;
 		}
@@ -804,6 +815,12 @@
 			properties->deviceLUIDValid = false;
 			break;
 		}
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES_KHX: {
+			VkPhysicalDeviceMultiviewPropertiesKHX *properties = (VkPhysicalDeviceMultiviewPropertiesKHX*)ext;
+			properties->maxMultiviewViewCount = MAX_VIEWS;
+			properties->maxMultiviewInstanceIndex = INT_MAX;
+			break;
+		}
 		default:
 			break;
 		}
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 31bdc8c..637fed6 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -230,6 +230,7 @@
 			.image_write_without_format = true,
 			.tessellation = true,
 			.int64 = true,
+			.multiview = true,
 			.variable_pointers = true,
 		};
 		entry_point = spirv_to_nir(spirv, module->size / 4,