anv: Add the KHX_multiview boilerplate

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

src/intel/vulkan/anv_device.c

@@ -612,6 +612,15 @@ void anv_GetPhysicalDeviceFeatures2KHR(
 
    vk_foreach_struct(ext, pFeatures->pNext) {
       switch (ext->sType) {
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHX: {
+         VkPhysicalDeviceMultiviewFeaturesKHX *features =
+            (VkPhysicalDeviceMultiviewFeaturesKHX *)ext;
+         features->multiview = true;
+         features->multiviewGeometryShader = true;
+         features->multiviewTessellationShader = true;
+         break;
+      }
+
       default:
          anv_debug_ignored_stype(ext->sType);
          break;
@@ -789,6 +798,14 @@ void anv_GetPhysicalDeviceProperties2KHR(
          break;
       }
 
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES_KHX: {
+         VkPhysicalDeviceMultiviewPropertiesKHX *properties =
+            (VkPhysicalDeviceMultiviewPropertiesKHX *)ext;
+         properties->maxMultiviewViewCount = 16;
+         properties->maxMultiviewInstanceIndex = UINT32_MAX / 16;
+         break;
+      }
+
       default:
          anv_debug_ignored_stype(ext->sType);
          break;

src/intel/vulkan/anv_entrypoints_gen.py

@@ -48,6 +48,7 @@ SUPPORTED_EXTENSIONS = [
     'VK_KHX_external_memory',
     'VK_KHX_external_memory_capabilities',
     'VK_KHX_external_memory_fd',
+    'VK_KHX_multiview',
 ]
 
 # We generate a static hash table for entry point lookup