[Mesa-dev] [PATCH 9/9] anv: Enable SPV_KHR_8bit_storage and VK_KHR_8bit_storage

[Jose Maria Casanova Crespo]

Enables SPV_KHR_8bit_storage and VK_KHR_8bit_storage on gen 8+
using the VK_KHR_get_physical_device_properties2 functionality
to expose if the extension is supported or not.

Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
---
 src/intel/vulkan/anv_device.c      | 11 +++++++++++
 src/intel/vulkan/anv_extensions.py |  1 +
 src/intel/vulkan/anv_pipeline.c    |  1 +
 3 files changed, 13 insertions(+)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 7b3ddbb9501..a8b0bd2fc3e 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -896,6 +896,17 @@ void anv_GetPhysicalDeviceFeatures2(
          break;
       }
 
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES_KHR: {
+         VkPhysicalDevice8BitStorageFeaturesKHR *features =
+            (VkPhysicalDevice8BitStorageFeaturesKHR *)ext;
+         ANV_FROM_HANDLE(anv_physical_device, pdevice, physicalDevice);
+
+         features->storageBuffer8BitAccess = pdevice->info.gen >= 8;
+         features->uniformAndStorageBuffer8BitAccess = pdevice->info.gen >= 8;
+         features->storagePushConstant8 = pdevice->info.gen >= 8;
+         break;
+      }
+
       default:
          anv_debug_ignored_stype(ext->sType);
          break;
diff --git a/src/intel/vulkan/anv_extensions.py b/src/intel/vulkan/anv_extensions.py
index 4179315a388..99529162781 100644
--- a/src/intel/vulkan/anv_extensions.py
+++ b/src/intel/vulkan/anv_extensions.py
@@ -72,6 +72,7 @@ MAX_API_VERSION = None # Computed later
 EXTENSIONS = [
     Extension('VK_ANDROID_native_buffer',                 5, 'ANDROID'),
     Extension('VK_KHR_16bit_storage',                     1, 'device->info.gen >= 8'),
+    Extension('VK_KHR_8bit_storage',                      1, 'device->info.gen >= 8'),
     Extension('VK_KHR_bind_memory2',                      1, True),
     Extension('VK_KHR_create_renderpass2',                1, True),
     Extension('VK_KHR_dedicated_allocation',              1, True),
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index b0c9c3422a5..1565fe7a7a3 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -153,6 +153,7 @@ anv_shader_compile_to_nir(struct anv_pipeline *pipeline,
          .subgroup_shuffle = true,
          .subgroup_vote = true,
          .stencil_export = device->instance->physicalDevice.info.gen >= 9,
+         .storage_8bit = device->instance->physicalDevice.info.gen >= 8,
       },
    };
 
-- 
2.17.1