tu: Expose VK_KHR_spirv_1_4 and VK_EXT_scalar_block_layout

VK_KHR_spirv_1_4 is trivial because vtn already supports all the added
SPIR-V features that aren't gated behind Vulkan extensions. I've
observed some robustness2 CTS tests requiring this. However there are
a few tests currently failing due to lacking spilling.

VK_EXT_scalar_block_layout should also be trivial, since support for
"straddling" UBO loads was added recently for other reasons. This is
used by every robustness2 CTS test.

Part-of: <!8695>

docs/features.txt

@@ -461,14 +461,14 @@ Vulkan 1.2 -- all DONE: anv
   VK_KHR_shader_float16_int8                            DONE (anv/gen8+, radv, tu)
   VK_KHR_shader_float_controls                          DONE (anv/gen8+, radv, tu)
   VK_KHR_shader_subgroup_extended_types                 DONE (anv/gen8+, radv)
-  VK_KHR_spirv_1_4                                      DONE (anv, radv)
+  VK_KHR_spirv_1_4                                      DONE (anv, radv, tu)
   VK_KHR_timeline_semaphore                             DONE (anv, radv)
   VK_KHR_uniform_buffer_standard_layout                 DONE (anv, lvp, radv)
   VK_KHR_vulkan_memory_model                            DONE (anv, radv)
   VK_EXT_descriptor_indexing                            DONE (anv/gen9+, radv, tu)
   VK_EXT_host_query_reset                               DONE (anv, lvp, radv, tu)
   VK_EXT_sampler_filter_minmax                          DONE (anv/gen9+, lvp, radv, tu)
-  VK_EXT_scalar_block_layout                            DONE (anv, lvp, radv/gfx7+)
+  VK_EXT_scalar_block_layout                            DONE (anv, lvp, radv/gfx7+, tu)
   VK_EXT_separate_stencil_usage                         DONE (anv)
   VK_EXT_shader_viewport_index_layer                    DONE (anv, lvp, radv, tu)
 

src/freedreno/ci/deqp-freedreno-a630-fails.txt

@@ -183,6 +183,7 @@ dEQP-VK.spirv_assembly.instruction.graphics.opquantize.too_small_geom,Fail
 dEQP-VK.spirv_assembly.instruction.graphics.opquantize.too_small_tessc,Fail
 dEQP-VK.spirv_assembly.instruction.graphics.variable_pointers.graphics.writes_single_buffer_geom,Fail
 dEQP-VK.spirv_assembly.instruction.graphics.variable_pointers.graphics.writes_two_buffers_geom,Fail
+dEQP-VK.spirv_assembly.instruction.spirv1p4.opcopylogical.nested_arrays_different_inner_stride,Fail
 dEQP-VK.subgroups.basic.compute.subgroupelect,Crash
 dEQP-VK.subgroups.basic.compute.subgroupmemorybarrier,Crash
 dEQP-VK.subgroups.basic.compute.subgroupmemorybarriershared,Crash

src/freedreno/vulkan/tu_device.c

@@ -444,7 +444,7 @@ tu_GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
          features->runtimeDescriptorArray                             = true;
 
          features->samplerFilterMinmax                 = true;
-         features->scalarBlockLayout                   = false;
+         features->scalarBlockLayout                   = true;
          features->imagelessFramebuffer                = false;
          features->uniformBufferStandardLayout         = false;
          features->shaderSubgroupExtendedTypes         = false;
@@ -610,6 +610,12 @@ tu_GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
          features->shaderInt8 = false;
          break;
       }
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SCALAR_BLOCK_LAYOUT_FEATURES_EXT: {
+         VkPhysicalDeviceScalarBlockLayoutFeaturesEXT *features = (void *)ext;
+         features->scalarBlockLayout = true;
+         break;
+      }
+
       default:
          break;
       }

src/freedreno/vulkan/tu_extensions.py

@@ -113,6 +113,8 @@ EXTENSIONS = [
     Extension('VK_KHR_shader_float_controls',             1, True),
     Extension('VK_KHR_shader_float16_int8',               1, True),
     Extension('VK_KHR_16bit_storage',                     1, 'device->gpu_id >= 650'),
+    Extension('VK_EXT_scalar_block_layout',               1, True),
+    Extension('VK_KHR_spirv_1_4',                         1, True),
 ]
 
 MAX_API_VERSION = VkVersion(MAX_API_VERSION)