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radv: expose VK_EXT_shader_float8

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35434>
This commit is contained in:
Georg Lehmann
2025-06-06 18:03:53 +02:00
committed by Marge Bot
parent cbd17cb4d6
commit 60796c85d1
3 changed files with 31 additions and 0 deletions
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1
docs/features.txt
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@@ -651,6 +651,7 @@ Khronos extensions that are not part of any Vulkan version:
VK_EXT_sample_locations DONE (anv, hasvk, hk, nvk, radv, tu/a650+, vn)
VK_EXT_shader_atomic_float DONE (anv, hasvk, lvp, radv, vn)
VK_EXT_shader_atomic_float2 DONE (anv, lvp, radv, vn)
VK_EXT_shader_float8 DONE (radv/gfx12+)
VK_EXT_shader_image_atomic_int64 DONE (anv, nvk, radv, vn)
VK_EXT_shader_object DONE (lvp, hk, nvk, radv)
VK_EXT_shader_replicated_composites DONE (anv, dzn, hasvk, lvp, nvk, panvk, radv, tu, vn)

1
docs/relnotes/new_features.txt
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@@ -55,3 +55,4 @@ CL_sRGBA and CL_sBGRA images
cl_khr_extended_bit_ops
VK_KHR_shader_clock on panvk
GL_EXT_shader_realtime_clock on panfrost/v6+
VK_KHR_shader_float8 on RADV (RDNA4+)

29
src/amd/vulkan/radv_physical_device.c
View File

@@ -706,6 +706,7 @@ radv_physical_device_get_supported_extensions(const struct radv_physical_device
.EXT_shader_atomic_float = true,
.EXT_shader_atomic_float2 = true,
.EXT_shader_demote_to_helper_invocation = true,
.EXT_shader_float8 = pdev->info.gfx_level >= GFX12 && !pdev->use_llvm,
.EXT_shader_image_atomic_int64 = true,
.EXT_shader_module_identifier = true,
.EXT_shader_object = !pdev->use_llvm && !(instance->debug_flags & RADV_DEBUG_NO_ESO),
@@ -1330,6 +1331,10 @@ radv_physical_device_get_features(const struct radv_physical_device *pdev, struc
/* VK_KHR_unified_layouts */
.unifiedImageLayouts = true,
.unifiedImageLayoutsVideo = true,
/* VK_EXT_shader_float8 */
.shaderFloat8 = true,
.shaderFloat8CooperativeMatrix = radv_cooperative_matrix_enabled(pdev),
};
}
@@ -2893,6 +2898,30 @@ radv_GetPhysicalDeviceCooperativeMatrixPropertiesKHR(VkPhysicalDevice physicalDe
VK_FROM_HANDLE(radv_physical_device, pdev, physicalDevice);
VK_OUTARRAY_MAKE_TYPED(VkCooperativeMatrixPropertiesKHR, out, pProperties, pPropertyCount);
if (pdev->info.gfx_level >= GFX12) {
for (unsigned e5m2_a = 0; e5m2_a < 2; e5m2_a++) {
for (unsigned e5m2_b = 0; e5m2_b < 2; e5m2_b++) {
VkComponentTypeKHR a_type = e5m2_a ? VK_COMPONENT_TYPE_FLOAT8_E5M2_EXT : VK_COMPONENT_TYPE_FLOAT8_E4M3_EXT;
VkComponentTypeKHR b_type = e5m2_b ? VK_COMPONENT_TYPE_FLOAT8_E5M2_EXT : VK_COMPONENT_TYPE_FLOAT8_E4M3_EXT;
vk_outarray_append_typed(VkCooperativeMatrixPropertiesKHR, &out, p)
{
*p = (struct VkCooperativeMatrixPropertiesKHR){
.sType = VK_STRUCTURE_TYPE_COOPERATIVE_MATRIX_PROPERTIES_KHR,
.MSize = 16,
.NSize = 16,
.KSize = 16,
.AType = a_type,
.BType = b_type,
.CType = VK_COMPONENT_TYPE_FLOAT32_KHR,
.ResultType = VK_COMPONENT_TYPE_FLOAT32_KHR,
.saturatingAccumulation = false,
.scope = VK_SCOPE_SUBGROUP_KHR};
}
}
}
}
for (unsigned bfloat = 0; bfloat < 2; bfloat++) {
for (unsigned fp32 = 0; fp32 < 2; fp32++) {
VkComponentTypeKHR ab_type = bfloat ? VK_COMPONENT_TYPE_BFLOAT16_KHR : VK_COMPONENT_TYPE_FLOAT16_KHR;