Mesa (master): radv: enable VK_KHR_8bit_storage

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Module: Mesa
Branch: master
Commit: 037f11d42ec2bb6812f4cc51dffff3916fccf62a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=037f11d42ec2bb6812f4cc51dffff3916fccf62a

Author: Rhys Perry <pendingchaos02 at gmail.com>
Date:   Thu Dec  6 13:33:48 2018 +0000

radv: enable VK_KHR_8bit_storage

Signed-off-by: Rhys Perry <pendingchaos02 at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 docs/features.txt                 | 2 +-
 src/amd/vulkan/radv_device.c      | 9 +++++++++
 src/amd/vulkan/radv_extensions.py | 1 +
 src/amd/vulkan/radv_shader.c      | 1 +
 4 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/docs/features.txt b/docs/features.txt
index 6c2b6d59377..ded753b0182 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -439,7 +439,7 @@ Vulkan 1.1 -- all DONE: anv, radv
   VK_KHR_variable_pointers                              DONE (anv, radv)
 
 Khronos extensions that are not part of any Vulkan version:
-  VK_KHR_8bit_storage                                   DONE (anv)
+  VK_KHR_8bit_storage                                   DONE (anv, radv)
   VK_KHR_android_surface                                not started
   VK_KHR_create_renderpass2                             DONE (anv, radv)
   VK_KHR_display                                        DONE (anv, radv)
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 5a54c5842ab..433b8542029 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -895,6 +895,15 @@ void radv_GetPhysicalDeviceFeatures2(
 			features->hostQueryReset = true;
 			break;
 		}
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES_KHR: {
+			VkPhysicalDevice8BitStorageFeaturesKHR *features =
+			    (VkPhysicalDevice8BitStorageFeaturesKHR*)ext;
+			bool enabled = pdevice->rad_info.chip_class >= VI;
+			features->storageBuffer8BitAccess = enabled;
+			features->uniformAndStorageBuffer8BitAccess = enabled;
+			features->storagePushConstant8 = enabled;
+			break;
+		}
 		default:
 			break;
 		}
diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
index 88d5780fe8d..421f8b926ea 100644
--- a/src/amd/vulkan/radv_extensions.py
+++ b/src/amd/vulkan/radv_extensions.py
@@ -92,6 +92,7 @@ EXTENSIONS = [
     Extension('VK_KHR_xlib_surface',                      6, 'VK_USE_PLATFORM_XLIB_KHR'),
     Extension('VK_KHR_multiview',                         1, True),
     Extension('VK_KHR_display',                          23, 'VK_USE_PLATFORM_DISPLAY_KHR'),
+    Extension('VK_KHR_8bit_storage',                      1, 'device->rad_info.chip_class >= VI'),
     Extension('VK_EXT_direct_mode_display',               1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
     Extension('VK_EXT_acquire_xlib_display',              1, 'VK_USE_PLATFORM_XLIB_XRANDR_EXT'),
     Extension('VK_EXT_buffer_device_address',             1, True),
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index a1612c829b8..eecbc6ae759 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -249,6 +249,7 @@ radv_shader_compile_to_nir(struct radv_device *device,
 				.transform_feedback = true,
 				.trinary_minmax = true,
 				.variable_pointers = true,
+				.storage_8bit = true,
 			},
 			.ubo_ptr_type = glsl_vector_type(GLSL_TYPE_UINT, 2),
 			.ssbo_ptr_type = glsl_vector_type(GLSL_TYPE_UINT, 2),