anv: Trivially implement VK_KHR_device_group

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

src/intel/compiler/brw_compiler.c

@@ -42,6 +42,7 @@
    .lower_fdiv = true,                                                        \
    .lower_flrp64 = true,                                                      \
    .lower_ldexp = true,                                                       \
+   .lower_device_index_to_zero = true,                                        \
    .native_integers = true,                                                   \
    .use_interpolated_input_intrinsics = true,                                 \
    .vertex_id_zero_based = true

src/intel/vulkan/anv_cmd_buffer.c

@@ -1068,3 +1068,10 @@ void anv_CmdPushDescriptorSetWithTemplateKHR(
    anv_cmd_buffer_bind_descriptor_set(cmd_buffer, template->bind_point,
                                       layout, _set, set, NULL, NULL);
 }
+
+void anv_CmdSetDeviceMask(
+    VkCommandBuffer                             commandBuffer,
+    uint32_t                                    deviceMask)
+{
+   /* No-op */
+}

src/intel/vulkan/anv_device.c

@@ -672,6 +672,18 @@ anv_enumerate_devices(struct anv_instance *instance)
    return result;
 }
 
+static VkResult
+anv_instance_ensure_physical_device(struct anv_instance *instance)
+{
+   if (instance->physicalDeviceCount < 0) {
+      VkResult result = anv_enumerate_devices(instance);
+      if (result != VK_SUCCESS &&
+          result != VK_ERROR_INCOMPATIBLE_DRIVER)
+         return result;
+   }
+
+   return VK_SUCCESS;
+}
 
 VkResult anv_EnumeratePhysicalDevices(
     VkInstance                                  _instance,
@@ -680,20 +692,49 @@ VkResult anv_EnumeratePhysicalDevices(
 {
    ANV_FROM_HANDLE(anv_instance, instance, _instance);
    VK_OUTARRAY_MAKE(out, pPhysicalDevices, pPhysicalDeviceCount);
-   VkResult result;
 
-   if (instance->physicalDeviceCount < 0) {
+   VkResult result = anv_instance_ensure_physical_device(instance);
-      result = anv_enumerate_devices(instance);
+   if (result != VK_SUCCESS)
-      if (result != VK_SUCCESS &&
-          result != VK_ERROR_INCOMPATIBLE_DRIVER)
       return result;
-   }
 
-   if (instance->physicalDeviceCount > 0) {
+   if (instance->physicalDeviceCount == 0)
+      return VK_SUCCESS;
+
    assert(instance->physicalDeviceCount == 1);
    vk_outarray_append(&out, i) {
       *i = anv_physical_device_to_handle(&instance->physicalDevice);
    }
+
+   return vk_outarray_status(&out);
+}
+
+VkResult anv_EnumeratePhysicalDeviceGroups(
+    VkInstance                                  _instance,
+    uint32_t*                                   pPhysicalDeviceGroupCount,
+    VkPhysicalDeviceGroupProperties*            pPhysicalDeviceGroupProperties)
+{
+   ANV_FROM_HANDLE(anv_instance, instance, _instance);
+   VK_OUTARRAY_MAKE(out, pPhysicalDeviceGroupProperties,
+                         pPhysicalDeviceGroupCount);
+
+   VkResult result = anv_instance_ensure_physical_device(instance);
+   if (result != VK_SUCCESS)
+      return result;
+
+   if (instance->physicalDeviceCount == 0)
+      return VK_SUCCESS;
+
+   assert(instance->physicalDeviceCount == 1);
+
+   vk_outarray_append(&out, p) {
+      p->physicalDeviceCount = 1;
+      memset(p->physicalDevices, 0, sizeof(p->physicalDevices));
+      p->physicalDevices[0] =
+         anv_physical_device_to_handle(&instance->physicalDevice);
+      p->subsetAllocation = VK_FALSE;
+
+      vk_foreach_struct(ext, p->pNext)
+         anv_debug_ignored_stype(ext->sType);
    }
 
    return vk_outarray_status(&out);
@@ -1103,6 +1144,21 @@ void anv_GetPhysicalDeviceMemoryProperties2(
    }
 }
 
+void
+anv_GetDeviceGroupPeerMemoryFeatures(
+    VkDevice                                    device,
+    uint32_t                                    heapIndex,
+    uint32_t                                    localDeviceIndex,
+    uint32_t                                    remoteDeviceIndex,
+    VkPeerMemoryFeatureFlags*                   pPeerMemoryFeatures)
+{
+   assert(localDeviceIndex == 0 && remoteDeviceIndex == 0);
+   *pPeerMemoryFeatures = VK_PEER_MEMORY_FEATURE_COPY_SRC_BIT |
+                          VK_PEER_MEMORY_FEATURE_COPY_DST_BIT |
+                          VK_PEER_MEMORY_FEATURE_GENERIC_SRC_BIT |
+                          VK_PEER_MEMORY_FEATURE_GENERIC_DST_BIT;
+}
+
 PFN_vkVoidFunction anv_GetInstanceProcAddr(
     VkInstance                                  _instance,
     const char*                                 pName)

src/intel/vulkan/anv_extensions.py

@@ -70,6 +70,8 @@ EXTENSIONS = [
     Extension('VK_KHR_bind_memory2',                      1, True),
     Extension('VK_KHR_dedicated_allocation',              1, True),
     Extension('VK_KHR_descriptor_update_template',        1, True),
+    Extension('VK_KHR_device_group',                      1, True),
+    Extension('VK_KHR_device_group_creation',             1, True),
     Extension('VK_KHR_external_fence',                    1,
               'device->has_syncobj_wait'),
     Extension('VK_KHR_external_fence_capabilities',       1, True),

src/intel/vulkan/anv_pipeline.c

@@ -138,6 +138,7 @@ anv_shader_compile_to_nir(struct anv_pipeline *pipeline,
          .float64 = device->instance->physicalDevice.info.gen >= 8,
          .int64 = device->instance->physicalDevice.info.gen >= 8,
          .tessellation = true,
+         .device_group = true,
          .draw_parameters = true,
          .image_write_without_format = true,
          .multiview = true,

src/intel/vulkan/anv_wsi.c

@@ -242,3 +242,25 @@ VkResult anv_QueuePresentKHR(
                                    _queue, 0,
                                    pPresentInfo);
 }
+
+VkResult anv_GetDeviceGroupPresentCapabilitiesKHR(
+    VkDevice                                    device,
+    VkDeviceGroupPresentCapabilitiesKHR*        pCapabilities)
+{
+   memset(pCapabilities->presentMask, 0,
+          sizeof(pCapabilities->presentMask));
+   pCapabilities->presentMask[0] = 0x1;
+   pCapabilities->modes = VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR;
+
+   return VK_SUCCESS;
+}
+
+VkResult anv_GetDeviceGroupSurfacePresentModesKHR(
+    VkDevice                                    device,
+    VkSurfaceKHR                                surface,
+    VkDeviceGroupPresentModeFlagsKHR*           pModes)
+{
+   *pModes = VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR;
+
+   return VK_SUCCESS;
+}