Mesa (master): radv: Add support for VK_KHR_variable_pointers.

[Bas Nieuwenhuizen]

Module: Mesa
Branch: master
Commit: 21d777a122dc73481785e6f0ae050932b933d9ad
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=21d777a122dc73481785e6f0ae050932b933d9ad

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Wed Jul 19 23:55:58 2017 +0200

radv: Add support for VK_KHR_variable_pointers.

Just a trivial enable.

Signed-off-by: Bas Nieuwenhuizen <basni at google.com>
Reviewed-by: Connor Abbott <cwabbott0 at gmail.com>
Acked-by: Dave Airlie <airlied at redhat.com>

---

 src/amd/vulkan/radv_device.c           | 16 ++++++++++++++++
 src/amd/vulkan/radv_entrypoints_gen.py |  1 +
 src/amd/vulkan/radv_pipeline.c         |  1 +
 3 files changed, 18 insertions(+)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index e3655dabe3..d87be66da8 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -157,6 +157,10 @@ static const VkExtensionProperties common_device_extensions[] = {
 		.extensionName = VK_KHR_STORAGE_BUFFER_STORAGE_CLASS_EXTENSION_NAME,
 		.specVersion = 1,
 	},
+	{
+		.extensionName = VK_KHR_VARIABLE_POINTERS_EXTENSION_NAME,
+		.specVersion = 1,
+	},
 };
 
 static VkResult
@@ -589,6 +593,18 @@ void radv_GetPhysicalDeviceFeatures2KHR(
 	VkPhysicalDevice                            physicalDevice,
 	VkPhysicalDeviceFeatures2KHR               *pFeatures)
 {
+	vk_foreach_struct(ext, pFeatures->pNext) {
+		switch (ext->sType) {
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES_KHR: {
+			VkPhysicalDeviceVariablePointerFeaturesKHR *features = (void *)ext;
+			features->variablePointersStorageBuffer = true;
+			features->variablePointers = false;
+			break;
+		}
+		default:
+			break;
+		}
+	}
 	return radv_GetPhysicalDeviceFeatures(physicalDevice, &pFeatures->features);
 }
 
diff --git a/src/amd/vulkan/radv_entrypoints_gen.py b/src/amd/vulkan/radv_entrypoints_gen.py
index ec798157f9..61b2328150 100644
--- a/src/amd/vulkan/radv_entrypoints_gen.py
+++ b/src/amd/vulkan/radv_entrypoints_gen.py
@@ -48,6 +48,7 @@ supported_extensions = [
    'VK_KHR_external_memory',
    'VK_KHR_external_memory_fd',
    'VK_KHR_storage_buffer_storage_class',
+   'VK_KHR_variable_pointers',
 ]
 
 # We generate a static hash table for entry point lookup
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 90cd716047..c920cc35be 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -230,6 +230,7 @@ radv_shader_compile_to_nir(struct radv_device *device,
 			.image_write_without_format = true,
 			.tessellation = true,
 			.int64 = true,
+			.variable_pointers = true,
 		};
 		entry_point = spirv_to_nir(spirv, module->size / 4,
 					   spec_entries, num_spec_entries,