vulkan: Use native e2m1 and e4m3 conversions for mxfp4/nvfp4 (#25338)

This uses the new VK_EXT_shader_ocp_microscaling_types extension to do fp4 type
promotions, and also uses the float8 extension to do ue4m3 promotions for
nvfp4. It's reasonable to assume that an implementation that supports fp4 will
also support fp8, so we don't need to handle all possible combinations of
support.

ggml/src/ggml-vulkan/CMakeLists.txt

@@ -97,6 +97,18 @@ if (Vulkan_FOUND)
         "GGML_VULKAN_BFLOAT16_GLSLC_SUPPORT"
     )
 
+    test_shader_extension_support(
+        "GL_EXT_float_e2m1"
+        "${CMAKE_CURRENT_SOURCE_DIR}/vulkan-shaders/feature-tests/float_e2m1.comp"
+        "GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT"
+    )
+
+    test_shader_extension_support(
+        "GL_EXT_float_e4m3"
+        "${CMAKE_CURRENT_SOURCE_DIR}/vulkan-shaders/feature-tests/float_e4m3.comp"
+        "GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT"
+    )
+
     target_link_libraries(ggml-vulkan PRIVATE Vulkan::Vulkan)
     target_include_directories(ggml-vulkan PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
 

ggml/src/ggml-vulkan/ggml-vulkan.cpp

@@ -128,6 +128,34 @@ typedef struct VkPhysicalDeviceShaderMixedFloatDotProductFeaturesVALVE {
 } VkPhysicalDeviceShaderMixedFloatDotProductFeaturesVALVE;
 #endif
 
+#if !defined(VK_EXT_shader_ocp_microscaling_types)
+#define VK_EXT_shader_ocp_microscaling_types 1
+#define VK_EXT_SHADER_OCP_MICROSCALING_TYPES_SPEC_VERSION 1
+#define VK_EXT_SHADER_OCP_MICROSCALING_TYPES_EXTENSION_NAME "VK_EXT_shader_ocp_microscaling_types"
+#define VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_OCP_MICROSCALING_TYPES_FEATURES_EXT ((VkStructureType)1000672000)
+typedef struct VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT {
+    VkStructureType    sType;
+    void*              pNext;
+    VkBool32           shaderFloat4;
+    VkBool32           shaderFloat6;
+    VkBool32           shaderFloat8UnsignedE8M0;
+    VkBool32           shaderMXInt8;
+} VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT;
+#endif
+
+#if !defined(VK_EXT_shader_float8)
+#define VK_EXT_shader_float8 1
+#define VK_EXT_SHADER_FLOAT8_SPEC_VERSION 1
+#define VK_EXT_SHADER_FLOAT8_EXTENSION_NAME "VK_EXT_shader_float8"
+#define VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT8_FEATURES_EXT ((VkStructureType)1000567000)
+typedef struct VkPhysicalDeviceShaderFloat8FeaturesEXT {
+    VkStructureType    sType;
+    void*              pNext;
+    VkBool32           shaderFloat8;
+    VkBool32           shaderFloat8CooperativeMatrix;
+} VkPhysicalDeviceShaderFloat8FeaturesEXT;
+#endif
+
 #define ROUNDUP_POW2(M, N) (((M) + (N) - 1) & ~((N) - 1))
 #define CEIL_DIV(M, N) (((M) / (N)) + (((M) % (N)) != 0))
 static bool is_pow2(uint32_t x) { return x > 1 && (x & (x-1)) == 0; }
@@ -745,6 +773,7 @@ struct vk_device_struct {
     bool coopmat2_decode_vector;
 
     bool dot2_f16 {};
+    bool ocp_fp4 {};
 
     bool pipeline_executable_properties_support {};
 
@@ -4310,8 +4339,16 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
         CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_IQ3_S],   matmul_iq3_s_f16,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
         CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_IQ4_XS],  matmul_iq4_xs_f16,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
         CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_IQ4_NL],  matmul_iq4_nl_f16,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
-        CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_MXFP4],   matmul_mxfp4_f16,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
-        CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_NVFP4],   matmul_nvfp4_f16,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+        if (device->ocp_fp4) {
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_MXFP4],   matmul_mxfp4_f16_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_NVFP4],   matmul_nvfp4_f16_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+        } else
+#endif
+        {
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_MXFP4],   matmul_mxfp4_f16,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_f16[GGML_TYPE_NVFP4],   matmul_nvfp4_f16,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3)
+        }
 
         GGML_ASSERT(device->subgroup_ballot);
 
@@ -4341,8 +4378,16 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
         CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ3_S],   matmul_id_subgroup_iq3_s_f16,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
         CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ4_XS],  matmul_id_subgroup_iq4_xs_f16,  mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
         CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ4_NL],  matmul_id_subgroup_iq4_nl_f16,  mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
-        CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f16,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
-        CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f16,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+        if (device->ocp_fp4) {
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f16_ocp,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f16_ocp,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+        } else
+#endif
+        {
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f16,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+            CREATE_MM2(pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f16,   mmqid_wg_denoms, warptile_mmqid, vk_mat_mat_id_push_constants, 5)
+        }
 #undef CREATE_MM
 #undef CREATE_MM2
     } else
@@ -4383,54 +4428,37 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
         }
 #endif
 
-        if (device->coopmat_acc_f16_support) {
+        CREATE_MM2(GGML_TYPE_Q1_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q1_0], matmul_q1_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q1_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q1_0], matmul_q1_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q4_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_0], matmul_q4_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q4_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_0], matmul_q4_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q4_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_1], matmul_q4_1_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q4_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_1], matmul_q4_1_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q5_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_0], matmul_q5_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q5_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_0], matmul_q5_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q5_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_1], matmul_q5_1_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q5_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_1], matmul_q5_1_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q8_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q8_0], matmul_q8_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q8_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q8_0], matmul_q8_0_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
 
-            CREATE_MM2(GGML_TYPE_Q2_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q2_K], matmul_q2_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q2_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q2_K], matmul_q2_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q3_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q3_K], matmul_q3_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q3_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q3_K], matmul_q3_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q4_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_K], matmul_q4_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q4_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_K], matmul_q4_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q5_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_K], matmul_q5_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q5_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_K], matmul_q5_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_Q6_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q6_K], matmul_q6_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_Q6_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q6_K], matmul_q6_k_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ1_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_S],   matmul_iq1_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ1_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_S],   matmul_iq1_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ1_M,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_M],   matmul_iq1_m_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ1_M,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_M],   matmul_iq1_m_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ2_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XXS], matmul_iq2_xxs_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ2_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XXS], matmul_iq2_xxs_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ2_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XS],  matmul_iq2_xs_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ2_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XS],  matmul_iq2_xs_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ2_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_S],   matmul_iq2_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ2_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_S],   matmul_iq2_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ3_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_XXS], matmul_iq3_xxs_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ3_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_XXS], matmul_iq3_xxs_f32, mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ3_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_S],   matmul_iq3_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ3_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_S],   matmul_iq3_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ4_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_XS],  matmul_iq4_xs_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ4_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_XS],  matmul_iq4_xs_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM2(GGML_TYPE_IQ4_NL,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_NL],  matmul_iq4_nl_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        CREATE_MM2(GGML_TYPE_IQ4_NL,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_NL],  matmul_iq4_nl_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+        if (device->ocp_fp4) {
+            CREATE_MM2(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_MXFP4],   matmul_mxfp4_f32_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+            CREATE_MM2(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_NVFP4],   matmul_nvfp4_f32_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
+        } else
+#endif
+        {
             CREATE_MM2(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_MXFP4],   matmul_mxfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
             CREATE_MM2(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_NVFP4],   matmul_nvfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-        } else {
-            CREATE_MM(GGML_TYPE_Q1_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q1_0].f32acc, matmul_q1_0_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q4_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_0].f32acc, matmul_q4_0_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q4_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_1].f32acc, matmul_q4_1_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q5_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_0].f32acc, matmul_q5_0_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q5_1, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_1].f32acc, matmul_q5_1_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q8_0, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q8_0].f32acc, matmul_q8_0_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-
-            CREATE_MM(GGML_TYPE_Q2_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q2_K].f32acc, matmul_q2_k_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q3_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q3_K].f32acc, matmul_q3_k_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q4_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q4_K].f32acc, matmul_q4_k_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q5_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q5_K].f32acc, matmul_q5_k_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_Q6_K, pipeline_dequant_mul_mat_mat[GGML_TYPE_Q6_K].f32acc, matmul_q6_k_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ1_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_S].f32acc,   matmul_iq1_s_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ1_M,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ1_M].f32acc,   matmul_iq1_m_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ2_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XXS].f32acc, matmul_iq2_xxs_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ2_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_XS].f32acc,  matmul_iq2_xs_f32,  , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ2_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ2_S].f32acc,   matmul_iq2_s_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ3_XXS, pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_XXS].f32acc, matmul_iq3_xxs_f32, , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ3_S,   pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ3_S].f32acc,   matmul_iq3_s_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ4_XS,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_XS].f32acc,  matmul_iq4_xs_f32,  , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_IQ4_NL,  pipeline_dequant_mul_mat_mat[GGML_TYPE_IQ4_NL].f32acc,  matmul_iq4_nl_f32,  , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_MXFP4].f32acc,   matmul_mxfp4_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
-            CREATE_MM(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat[GGML_TYPE_NVFP4].f32acc,   matmul_nvfp4_f32,   , mmq_wg_denoms, warptile_mmq, vk_mat_mat_push_constants, 3, );
         }
 
         GGML_ASSERT(device->subgroup_ballot);
@@ -4464,8 +4492,16 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
         CREATE_MM2(GGML_TYPE_IQ3_S,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ3_S],   matmul_id_subgroup_iq3_s_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
         CREATE_MM2(GGML_TYPE_IQ4_XS,  pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ4_XS],  matmul_id_subgroup_iq4_xs_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
         CREATE_MM2(GGML_TYPE_IQ4_NL,  pipeline_dequant_mul_mat_mat_id[GGML_TYPE_IQ4_NL],  matmul_id_subgroup_iq4_nl_f32,  mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
-        CREATE_MM2(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
-        CREATE_MM2(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+        if (device->ocp_fp4) {
+            CREATE_MM2(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f32_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+            CREATE_MM2(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f32_ocp,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+        } else
+#endif
+        {
+            CREATE_MM2(GGML_TYPE_MXFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_MXFP4],   matmul_id_subgroup_mxfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+            CREATE_MM2(GGML_TYPE_NVFP4,   pipeline_dequant_mul_mat_mat_id[GGML_TYPE_NVFP4],   matmul_id_subgroup_nvfp4_f32,   mmq_wg_denoms, warptile_mmq, vk_mat_mat_id_push_constants, mul_mat_id_param_count, _id);
+        }
 #undef CREATE_MM2
 #undef CREATE_MM
     } else
@@ -4844,6 +4880,14 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
     static constexpr uint32_t mul_mat_vec_num_bindings = 5;
     static constexpr uint32_t mul_mat_vec_id_num_bindings = 6;
 
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+#define OCP_DMMV_LEN(NAME, REDUC)  (device->ocp_fp4 ? NAME ## _ocp_len[REDUC]  : NAME ## _len[REDUC])
+#define OCP_DMMV_DATA(NAME, REDUC) (device->ocp_fp4 ? NAME ## _ocp_data[REDUC] : NAME ## _data[REDUC])
+#else
+#define OCP_DMMV_LEN(NAME, REDUC)  NAME ## _len[REDUC]
+#define OCP_DMMV_DATA(NAME, REDUC) NAME ## _data[REDUC]
+#endif
+
     for (uint32_t w = 0; w < DMMV_WG_SIZE_COUNT; ++w) {
         const uint32_t wg_size_subgroup   = (w == DMMV_WG_SIZE_SUBGROUP) ? subgroup_size : (subgroup_size * 4);
         const uint32_t wg_size_subgroup16 = (w == DMMV_WG_SIZE_SUBGROUP) ? subgroup_size16 : (subgroup_size16 * 4);
@@ -4880,8 +4924,8 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_IQ3_S][i],   "mul_mat_vec_iq3_s_f32_f32",   arr_dmmv_iq3_s_f32_f32_len[reduc16],   arr_dmmv_iq3_s_f32_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_IQ4_XS][i],  "mul_mat_vec_iq4_xs_f32_f32",  arr_dmmv_iq4_xs_f32_f32_len[reduc16],  arr_dmmv_iq4_xs_f32_f32_data[reduc16],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_IQ4_NL][i],  "mul_mat_vec_iq4_nl_f32_f32",  arr_dmmv_iq4_nl_f32_f32_len[reduc16],  arr_dmmv_iq4_nl_f32_f32_data[reduc16],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
-            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_MXFP4][i],   "mul_mat_vec_mxfp4_f32_f32",   arr_dmmv_mxfp4_f32_f32_len[reduc16],   arr_dmmv_mxfp4_f32_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
+            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_MXFP4][i],   "mul_mat_vec_mxfp4_f32_f32",   OCP_DMMV_LEN(arr_dmmv_mxfp4_f32_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_mxfp4_f32_f32, reduc16), "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
-            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_NVFP4][i],   "mul_mat_vec_nvfp4_f32_f32",   arr_dmmv_nvfp4_f32_f32_len[reduc16],   arr_dmmv_nvfp4_f32_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
+            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f32_f32[w][GGML_TYPE_NVFP4][i],   "mul_mat_vec_nvfp4_f32_f32",   OCP_DMMV_LEN(arr_dmmv_nvfp4_f32_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_nvfp4_f32_f32, reduc16), "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
 
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_F32 ][i], "mul_mat_vec_f32_f16_f32",  arr_dmmv_f32_f16_f32_len[reduc],  arr_dmmv_f32_f16_f32_data[reduc],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {1, 1, 1}, {wg_size_subgroup, 1, i+1}, 1, false, use_subgroups, force_subgroup_size);
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_F16 ][i], "mul_mat_vec_f16_f16_f32",  arr_dmmv_f16_f16_f32_len[reduc],  arr_dmmv_f16_f16_f32_data[reduc],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {2, 1, 1}, {wg_size_subgroup, 2, i+1}, 1, false, use_subgroups, force_subgroup_size);
@@ -4906,8 +4950,8 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_IQ3_S][i],   "mul_mat_vec_iq3_s_f16_f32",   arr_dmmv_iq3_s_f16_f32_len[reduc16],   arr_dmmv_iq3_s_f16_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_IQ4_XS][i],  "mul_mat_vec_iq4_xs_f16_f32",  arr_dmmv_iq4_xs_f16_f32_len[reduc16],  arr_dmmv_iq4_xs_f16_f32_data[reduc16],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
             ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_IQ4_NL][i],  "mul_mat_vec_iq4_nl_f16_f32",  arr_dmmv_iq4_nl_f16_f32_len[reduc16],  arr_dmmv_iq4_nl_f16_f32_data[reduc16],  "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
-            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_MXFP4][i],   "mul_mat_vec_mxfp4_f16_f32",   arr_dmmv_mxfp4_f16_f32_len[reduc16],   arr_dmmv_mxfp4_f16_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
+            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_MXFP4][i],   "mul_mat_vec_mxfp4_f16_f32",   OCP_DMMV_LEN(arr_dmmv_mxfp4_f16_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_mxfp4_f16_f32, reduc16), "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
-            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_NVFP4][i],   "mul_mat_vec_nvfp4_f16_f32",   arr_dmmv_nvfp4_f16_f32_len[reduc16],   arr_dmmv_nvfp4_f16_f32_data[reduc16],   "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
+            ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_f16_f32[w][GGML_TYPE_NVFP4][i],   "mul_mat_vec_nvfp4_f16_f32",   OCP_DMMV_LEN(arr_dmmv_nvfp4_f16_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_nvfp4_f16_f32, reduc16), "main", mul_mat_vec_num_bindings, sizeof(vk_mat_vec_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq, i+1}, 1, true, use_subgroups16, force_subgroup_size16);
 
 #if defined(GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT)
             if (device->integer_dot_product) {
@@ -4958,8 +5002,8 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
         ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_IQ3_S],   "mul_mat_vec_id_iq3_s_f32",   arr_dmmv_id_iq3_s_f32_f32_len[reduc16],   arr_dmmv_id_iq3_s_f32_f32_data[reduc16],   "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
         ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_IQ4_XS],  "mul_mat_vec_id_iq4_xs_f32",  arr_dmmv_id_iq4_xs_f32_f32_len[reduc16],  arr_dmmv_id_iq4_xs_f32_f32_data[reduc16],  "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
         ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_IQ4_NL],  "mul_mat_vec_id_iq4_nl_f32",  arr_dmmv_id_iq4_nl_f32_f32_len[reduc16],  arr_dmmv_id_iq4_nl_f32_f32_data[reduc16],  "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
-        ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_MXFP4],   "mul_mat_vec_id_mxfp4_f32",   arr_dmmv_id_mxfp4_f32_f32_len[reduc16],   arr_dmmv_id_mxfp4_f32_f32_data[reduc16],   "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
+        ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_MXFP4],   "mul_mat_vec_id_mxfp4_f32",   OCP_DMMV_LEN(arr_dmmv_id_mxfp4_f32_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_id_mxfp4_f32_f32, reduc16), "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
-        ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_NVFP4],   "mul_mat_vec_id_nvfp4_f32",   arr_dmmv_id_nvfp4_f32_f32_len[reduc16],   arr_dmmv_id_nvfp4_f32_f32_data[reduc16],   "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
+        ggml_vk_create_pipeline(device, device->pipeline_dequant_mul_mat_vec_id_f32[w][GGML_TYPE_NVFP4],   "mul_mat_vec_id_nvfp4_f32",   OCP_DMMV_LEN(arr_dmmv_id_nvfp4_f32_f32, reduc16), OCP_DMMV_DATA(arr_dmmv_id_nvfp4_f32_f32, reduc16), "main", mul_mat_vec_id_num_bindings, sizeof(vk_mat_vec_id_push_constants), {rm_iq, 1, 1}, {wg_size_subgroup16, rm_iq}, 1, true, use_subgroups16, force_subgroup_size16);
 
 #if defined(GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT)
         if (device->integer_dot_product) {
@@ -4986,6 +5030,9 @@ static void ggml_vk_load_shaders(vk_device& device, vk_pipeline requested) {
 #endif // GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT
     }
 
+#undef OCP_DMMV_DATA
+#undef OCP_DMMV_LEN
+
 #if !defined(GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT)
     GGML_UNUSED(rm_stdq_int);
     GGML_UNUSED(rm_kq_int);
@@ -5795,6 +5842,8 @@ static vk_device ggml_vk_get_device(size_t idx) {
         device->shader_64b_indexing = false;
         bool bfloat16_support = false;
         bool dot2_f16_support = false;
+        bool ocp_microscaling_extension = false;
+        bool shader_float8_extension = false;
 
         for (const auto& properties : ext_props) {
             if (strcmp("VK_KHR_maintenance4", properties.extensionName) == 0) {
@@ -5836,6 +5885,14 @@ static vk_device ggml_vk_get_device(size_t idx) {
             } else if (strcmp("VK_KHR_shader_bfloat16", properties.extensionName) == 0 &&
                        !getenv("GGML_VK_DISABLE_BFLOAT16")) {
                 bfloat16_support = true;
+#endif
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT)
+            } else if (strcmp(VK_EXT_SHADER_OCP_MICROSCALING_TYPES_EXTENSION_NAME, properties.extensionName) == 0) {
+                ocp_microscaling_extension = true;
+#endif
+#if defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+            } else if (strcmp(VK_EXT_SHADER_FLOAT8_EXTENSION_NAME, properties.extensionName) == 0) {
+                shader_float8_extension = true;
 #endif
             } else if (strcmp("VK_VALVE_shader_mixed_float_dot_product", properties.extensionName) == 0 &&
                        !getenv("GGML_VK_DISABLE_DOT2")) {
@@ -6139,6 +6196,22 @@ static vk_device ggml_vk_get_device(size_t idx) {
         }
 #endif
 
+        VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT ocp_microscaling_features {};
+        ocp_microscaling_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_OCP_MICROSCALING_TYPES_FEATURES_EXT;
+        if (ocp_microscaling_extension) {
+            last_struct->pNext = (VkBaseOutStructure *)&ocp_microscaling_features;
+            last_struct = (VkBaseOutStructure *)&ocp_microscaling_features;
+            device_extensions.push_back(VK_EXT_SHADER_OCP_MICROSCALING_TYPES_EXTENSION_NAME);
+        }
+
+        VkPhysicalDeviceShaderFloat8FeaturesEXT shader_float8_features {};
+        shader_float8_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT8_FEATURES_EXT;
+        if (shader_float8_extension) {
+            last_struct->pNext = (VkBaseOutStructure *)&shader_float8_features;
+            last_struct = (VkBaseOutStructure *)&shader_float8_features;
+            device_extensions.push_back(VK_EXT_SHADER_FLOAT8_EXTENSION_NAME);
+        }
+
         VkPhysicalDeviceMaintenance4Features maint4_features {};
         maint4_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_4_FEATURES;
         if (maintenance4_support) {
@@ -6198,6 +6271,9 @@ static vk_device ggml_vk_get_device(size_t idx) {
 #endif
 
         device->dot2_f16 = dot2_f16_support && dot2_features.shaderMixedFloatDotProductFloat16AccFloat32;
+        device->ocp_fp4 = ocp_microscaling_extension && ocp_microscaling_features.shaderFloat4 &&
+                          shader_float8_extension && shader_float8_features.shaderFloat8 &&
+                          !getenv("GGML_VK_DISABLE_OCP_FP4");
 
         device->pipeline_robustness = pl_robustness_features.pipelineRobustness;
 
@@ -6634,6 +6710,8 @@ static void ggml_vk_print_gpu_info(size_t idx) {
     bool integer_dot_product = false;
     bool bfloat16_support = false;
     bool dot2_f16_support = false;
+    bool ocp_microscaling_extension = false;
+    bool shader_float8_extension = false;
 
     for (auto properties : ext_props) {
         if (strcmp("VK_KHR_16bit_storage", properties.extensionName) == 0) {
@@ -6662,6 +6740,14 @@ static void ggml_vk_print_gpu_info(size_t idx) {
         } else if (strcmp("VK_KHR_shader_bfloat16", properties.extensionName) == 0 &&
                     !getenv("GGML_VK_DISABLE_BFLOAT16")) {
             bfloat16_support = true;
+#endif
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT)
+        } else if (strcmp(VK_EXT_SHADER_OCP_MICROSCALING_TYPES_EXTENSION_NAME, properties.extensionName) == 0) {
+            ocp_microscaling_extension = true;
+#endif
+#if defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+        } else if (strcmp(VK_EXT_SHADER_FLOAT8_EXTENSION_NAME, properties.extensionName) == 0) {
+            shader_float8_extension = true;
 #endif
         } else if (strcmp("VK_VALVE_shader_mixed_float_dot_product", properties.extensionName) == 0 &&
                     !getenv("GGML_VK_DISABLE_DOT2")) {
@@ -6763,6 +6849,21 @@ static void ggml_vk_print_gpu_info(size_t idx) {
         last_struct = (VkBaseOutStructure *)&dot2_features;
     }
 
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+    VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT ocp_microscaling_features {};
+    ocp_microscaling_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_OCP_MICROSCALING_TYPES_FEATURES_EXT;
+    VkPhysicalDeviceShaderFloat8FeaturesEXT shader_float8_features {};
+    shader_float8_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT8_FEATURES_EXT;
+    if (ocp_microscaling_extension) {
+        last_struct->pNext = (VkBaseOutStructure *)&ocp_microscaling_features;
+        last_struct = (VkBaseOutStructure *)&ocp_microscaling_features;
+    }
+    if (shader_float8_extension) {
+        last_struct->pNext = (VkBaseOutStructure *)&shader_float8_features;
+        last_struct = (VkBaseOutStructure *)&shader_float8_features;
+    }
+#endif
+
     vkGetPhysicalDeviceFeatures2(physical_device, &device_features2);
 
     fp16 = fp16 && vk12_features.shaderFloat16;
@@ -6811,10 +6912,19 @@ static void ggml_vk_print_gpu_info(size_t idx) {
 
     bool dot2_f16 = dot2_f16_support && dot2_features.shaderMixedFloatDotProductFloat16AccFloat32;
     const char *fp16_str = fp16 ? (dot2_f16 ? "dot2" : "1") : "0";
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+    const bool fp4 = ocp_microscaling_extension && ocp_microscaling_features.shaderFloat4 &&
+                     shader_float8_extension && shader_float8_features.shaderFloat8 &&
+                     !getenv("GGML_VK_DISABLE_OCP_FP4");
+#else
+    GGML_UNUSED(ocp_microscaling_extension);
+    GGML_UNUSED(shader_float8_extension);
+    const bool fp4 = false;
+#endif
 
     std::string device_name = props2.properties.deviceName.data();
-    GGML_LOG_DEBUG("ggml_vulkan: %zu = %s (%s) | uma: %d | fp16: %s | bf16: %d | warp size: %zu | shared memory: %d | int dot: %d | matrix cores: %s\n",
+    GGML_LOG_DEBUG("ggml_vulkan: %zu = %s (%s) | uma: %d | fp16: %s | bf16: %d | fp4: %d | warp size: %zu | shared memory: %d | int dot: %d | matrix cores: %s\n",
-              idx, device_name.c_str(), driver_props.driverName.data(), uma, fp16_str, bf16, subgroup_size,
+              idx, device_name.c_str(), driver_props.driverName.data(), uma, fp16_str, bf16, fp4, subgroup_size,
               props2.properties.limits.maxComputeSharedMemorySize, integer_dot_product, matrix_cores.c_str());
 
     if (props2.properties.deviceType == vk::PhysicalDeviceType::eCpu) {

ggml/src/ggml-vulkan/vulkan-shaders/CMakeLists.txt

@@ -23,6 +23,14 @@ if (GGML_VULKAN_BFLOAT16_GLSLC_SUPPORT)
     add_compile_definitions(GGML_VULKAN_BFLOAT16_GLSLC_SUPPORT)
     message(STATUS "Enabling bfloat16 glslc support")
 endif()
+if (GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT)
+    add_compile_definitions(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT)
+    message(STATUS "Enabling E2M1 glslc support")
+endif()
+if (GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+    add_compile_definitions(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+    message(STATUS "Enabling E4M3 glslc support")
+endif()
 if (GGML_VULKAN_SHADER_DEBUG_INFO)
     add_compile_definitions(GGML_VULKAN_SHADER_DEBUG_INFO)
     message(STATUS "Enabling shader debug info")

ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs.glsl

@@ -480,12 +480,22 @@ vec4 dequantize4(uint ib, uint iqs, uint a_offset) {
 #if defined(DATA_A_MXFP4)
 vec2 dequantize(uint ib, uint iqs, uint a_offset) {
     const uint vui = uint(data_a[a_offset + ib].qs[iqs]);
+#ifdef USE_OCP_FP4
+    return vec2(unpackFloat2xfe2m1EXT(uint8_t(vui)));
+#else
     return vec2(kvalues_mxfp4[vui & 0xF], kvalues_mxfp4[vui >> 4]) * 0.5;
+#endif
 }
 vec4 dequantize4(uint ib, uint iqs, uint a_offset) {
+#ifdef USE_OCP_FP4
+    const uint16_t vui = uint16_t(uint(data_a[a_offset + ib].qs[iqs]) |
+                                  uint(data_a[a_offset + ib].qs[iqs + 1]) << 8);
+    return vec4(unpackFloat4xfe2m1EXT(vui));
+#else
     vec2 v0 = dequantize(ib, iqs, a_offset);
     vec2 v1 = dequantize(ib, iqs + 1, a_offset);
     return vec4(v0.x, v0.y, v1.x, v1.y);
+#endif
 }
 #endif
 
@@ -495,16 +505,30 @@ vec2 dequantize(uint ib, uint iqs, uint a_offset) {
     const float d = ue4m3_to_fp32(data_a[a_offset + ib].d[sub]);
     const uint j = iqs & 7;
     const uint shift = (iqs & 8) >> 1; // 0 or 4
+#ifdef USE_OCP_FP4
+    const uint vui = uint(data_a_packed16[a_offset + ib].qs[(sub * 8u + j) / 2u]);
+    return vec2(bitcastExtractfe2m1EXT(unpack8(vui).xy, shift)) * d;
+#else
     const uint vui0 = uint(data_a[a_offset + ib].qs[sub * 8u + j]);
     const uint vui1 = uint(data_a[a_offset + ib].qs[sub * 8u + j + 1]);
     const uint qs0 = (vui0 >> shift) & 0xF;
     const uint qs1 = (vui1 >> shift) & 0xF;
     return vec2(float(kvalues_mxfp4[qs0]), float(kvalues_mxfp4[qs1])) * d * 0.5;
+#endif
 }
 vec4 dequantize4(uint ib, uint iqs, uint a_offset) {
+#ifdef USE_OCP_FP4
+    const uint sub = iqs >> 4;
+    const float d = ue4m3_to_fp32(data_a[a_offset + ib].d[sub]);
+    const uint j = iqs & 7;
+    const uint shift = (iqs & 8) >> 1; // 0 or 4
+    const uint vui = data_a_packed32[a_offset + ib].qs[(sub * 8u + j) / 4u];
+    return vec4(bitcastExtractfe2m1EXT(unpack8(vui), shift)) * d;
+#else
     const vec2 v0 = dequantize(ib, iqs, a_offset);
     const vec2 v1 = dequantize(ib, iqs + 2u, a_offset);
     return vec4(v0.x, v0.y, v1.x, v1.y);
+#endif
 }
 #endif
 

ggml/src/ggml-vulkan/vulkan-shaders/dequant_funcs_cm2.glsl

@@ -1232,11 +1232,15 @@ float16_t dequantFuncMXFP4(const in decodeBufMXFP4 bl, const in uint blockCoords
     const uint idx = coordInBlock[1];
     const uint iqs = idx & 0xF;
     const uint shift = (idx & 0x10) >> 2;
+#ifdef USE_OCP_FP4
+    return float16_t(bitcastExtractfe2m1EXT(bl.block.qs[iqs], shift)) * float16_t(d);
+#else
     uint32_t qs = bl.block.qs[iqs];
     qs >>= shift;
     qs &= 0xF;
     float16_t ret = float16_t(kvalues_mxfp4[qs] * d * 0.5);
     return ret;
+#endif
 }
 
 f16vec4 dequantFuncMXFP4_v(const in decodeBufMXFP4 bl, const in uint blockCoords[2], const in uint coordInBlock[2])
@@ -1245,6 +1249,16 @@ f16vec4 dequantFuncMXFP4_v(const in decodeBufMXFP4 bl, const in uint blockCoords
     const uint idx = coordInBlock[1];
     const uint iqs = idx & 0xF;
     const uint shift = (idx & 0x10) >> 2;
+#ifdef USE_OCP_FP4
+    const fe2m1vec4 qv = bitcastExtractfe2m1EXT(
+        u8vec4(
+            bl.block.qs[iqs],
+            bl.block.qs[iqs + 1u],
+            bl.block.qs[iqs + 2u],
+            bl.block.qs[iqs + 3u]),
+        shift);
+    return f16vec4(qv) * float16_t(d);
+#else
     uvec4 qv = uvec4(
         uint(bl.block.qs[iqs]),
         uint(bl.block.qs[iqs + 1u]),
@@ -1257,6 +1271,7 @@ f16vec4 dequantFuncMXFP4_v(const in decodeBufMXFP4 bl, const in uint blockCoords
         float(kvalues_mxfp4[qv.z]),
         float(kvalues_mxfp4[qv.w])) * d * 0.5f;
     return f16vec4(ret);
+#endif
 }
 #endif
 
@@ -1275,10 +1290,15 @@ float16_t dequantFuncNVFP4(const in decodeBufNVFP4 bl, const in uint blockCoords
     const uint sub = (idx & 0x30) >> 4;
     const uint iqs = ((idx & 0x30) >> 1) + (idx & 0x7);
     const uint shift = (idx & 0x8) >> 1;
+#ifdef USE_OCP_FP4
+    const float16_t d = float16_t(ue4m3_from_bits(bl.block.d[sub]));
+    return float16_t(bitcastExtractfe2m1EXT(bl.block.qs[iqs], shift)) * d;
+#else
     const float d = ue4m3_to_fp32(bl.block.d[sub]);
     uint qs = uint(bl.block.qs[iqs]);
     qs = (qs >> shift) & 0xF;
     return float16_t(kvalues_mxfp4[qs] * d * 0.5);
+#endif
 }
 
 f16vec4 dequantFuncNVFP4_v(const in decodeBufNVFP4 bl, const in uint blockCoords[2], const in uint coordInBlock[2])
@@ -1288,9 +1308,14 @@ f16vec4 dequantFuncNVFP4_v(const in decodeBufNVFP4 bl, const in uint blockCoords
     const uint sub   = idx >> 4;
     const uint qs_w  = ((idx & 0x30) >> 3) + ((idx & 0x4u) >> 2);  // iqs / 4, in [0,8)
     const uint shift = (idx & 0x8) >> 1;
-    const float d    = ue4m3_to_fp32(bl.block.d[sub]);
 
     const uint qsw  = uint32_t(bl32.block.qs[qs_w]);
+#ifdef USE_OCP_FP4
+    const float16_t d = float16_t(ue4m3_from_bits(bl.block.d[sub]));
+    const fe2m1vec4 qv = bitcastExtractfe2m1EXT(unpack8(qsw), shift);
+    return f16vec4(qv) * d;
+#else
+    const float d = ue4m3_to_fp32(bl.block.d[sub]);
     const u8vec4 qv = unpack8((qsw >> shift) & 0x0F0F0F0Fu);
     const vec4 ret = vec4(
         float(kvalues_mxfp4[qv.x]),
@@ -1298,6 +1323,7 @@ f16vec4 dequantFuncNVFP4_v(const in decodeBufNVFP4 bl, const in uint blockCoords
         float(kvalues_mxfp4[qv.z]),
         float(kvalues_mxfp4[qv.w])) * d * 0.5f;
     return f16vec4(ret);
+#endif
 }
 #endif
 

ggml/src/ggml-vulkan/vulkan-shaders/feature-tests/float_e2m1.comp

@@ -0,0 +1,7 @@
+#version 460
+
+#extension GL_EXT_float_e2m1 : require
+
+void main()
+{
+}

ggml/src/ggml-vulkan/vulkan-shaders/feature-tests/float_e4m3.comp

@@ -0,0 +1,7 @@
+#version 460
+
+#extension GL_EXT_float_e4m3 : require
+
+void main()
+{
+}

ggml/src/ggml-vulkan/vulkan-shaders/mul_mm_funcs.glsl

@@ -502,14 +502,21 @@ void load_a_to_shmem(const uint pos_a, const uint row, const uint col, const uin
             const uint ib = idx / 8;
             const uint iqs = (idx & 0x07) * 2;
 
-            const float d = e8m0_to_fp32(data_a[ib].e) * 0.5;
             const uint vui = uint(data_a[ib].qs[iqs]);
             const uint vui2 = uint(data_a[ib].qs[iqs+1]);
 
+#ifdef USE_OCP_FP4
+            const float d = e8m0_to_fp32(data_a[ib].e);
+            const u8vec2 packed = u8vec2(vui, vui2);
+            buf_a[buf_idx    ] = FLOAT_TYPEV2(bitcastExtractfe2m1EXT(packed, 0u)) * FLOAT_TYPE(d);
+            buf_a[buf_idx + 8] = FLOAT_TYPEV2(bitcastExtractfe2m1EXT(packed, 4u)) * FLOAT_TYPE(d);
+#else
+            const float d = e8m0_to_fp32(data_a[ib].e) * 0.5;
             buf_a[buf_idx    ] = FLOAT_TYPEV2(kvalues_mxfp4[vui  & 0xF] * d,
                                               kvalues_mxfp4[vui2 & 0xF] * d);
             buf_a[buf_idx + 8] = FLOAT_TYPEV2(kvalues_mxfp4[vui  >>  4] * d,
                                               kvalues_mxfp4[vui2 >>  4] * d);
+#endif
 #elif defined(DATA_A_NVFP4)
             const uint idx = pos_a + col * p.stride_a / LOAD_VEC_A + row;
             // lo and hi nibbles are 8 elements apart, which doesn't quite line up with
@@ -519,15 +526,22 @@ void load_a_to_shmem(const uint pos_a, const uint row, const uint col, const uin
             const uint ib = idx / 16u;
             const uint sub = (idx & 0xC) >> 2;
             const uint iqs = (idx & 0xF) * 2;
-            const float d = ue4m3_to_fp32(data_a[ib].d[sub]) * 0.5;
             const uint vui = uint(data_a[ib].qs[iqs]);
             const uint vui2 = uint(data_a[ib].qs[iqs+1]);
 
+#ifdef USE_OCP_FP4
+            const FLOAT_TYPE d = FLOAT_TYPE(ue4m3_from_bits(data_a[ib].d[sub]));
+            const u8vec2 packed = u8vec2(vui, vui2);
+            buf_a[buf_idx    ] = FLOAT_TYPEV2(bitcastExtractfe2m1EXT(packed, 0u)) * d;
+            buf_a[buf_idx + 4] = FLOAT_TYPEV2(bitcastExtractfe2m1EXT(packed, 4u)) * d;
+#else
+            const float d = ue4m3_to_fp32(data_a[ib].d[sub]) * 0.5;
             buf_a[buf_idx    ] = FLOAT_TYPEV2(kvalues_mxfp4[vui  & 0xF] * d,
                                               kvalues_mxfp4[vui2 & 0xF] * d);
             buf_a[buf_idx + 4] = FLOAT_TYPEV2(kvalues_mxfp4[vui  >>  4] * d,
                                               kvalues_mxfp4[vui2 >>  4] * d);
 #endif
+#endif
 }
 
 #if !defined(MUL_MAT_ID)

ggml/src/ggml-vulkan/vulkan-shaders/types.glsl

@@ -7,6 +7,11 @@
 #extension GL_EXT_shader_explicit_arithmetic_types_int8 : require
 #extension GL_EXT_shader_16bit_storage : require
 
+#ifdef USE_OCP_FP4
+#extension GL_EXT_float_e2m1 : require
+#extension GL_EXT_float_e4m3 : require
+#endif
+
 #if defined(DATA_A_F32)
 #define QUANT_K 1
 #define QUANT_R 1
@@ -1730,6 +1735,12 @@ struct block_nvfp4
     uint8_t qs[QUANT_K_NVFP4 / 2];
 };
 
+struct block_nvfp4_packed16
+{
+    uint16_t d[QUANT_K_NVFP4 / 16 / 2];
+    uint16_t qs[QUANT_K_NVFP4 / 2 / 2];
+};
+
 struct block_nvfp4_packed32
 {
     uint32_t d[QUANT_K_NVFP4 / 16 / 4];
@@ -1741,6 +1752,7 @@ struct block_nvfp4_packed32
 #define QUANT_R QUANT_R_NVFP4
 #define QUANT_AUXF 1
 #define A_TYPE block_nvfp4
+#define A_TYPE_PACKED16 block_nvfp4_packed16
 #define A_TYPE_PACKED32 block_nvfp4_packed32
 #endif
 
@@ -1764,14 +1776,16 @@ void init_iq_shmem(uvec3 wgsize)
 #endif
 
 #if defined(DATA_A_MXFP4) || defined(DATA_A_NVFP4)
+#if !defined(USE_OCP_FP4)
 const int8_t kvalues_mxfp4_const[16] = {
     int8_t(0), int8_t(1), int8_t(2), int8_t(3), int8_t(4), int8_t(6), int8_t(8), int8_t(12),
     int8_t(0), int8_t(-1), int8_t(-2), int8_t(-3), int8_t(-4), int8_t(-6), int8_t(-8), int8_t(-12),
 };
 
 shared int8_t kvalues_mxfp4[16];
+#endif
 
-#if defined(DATA_A_NVFP4)
+#if defined(DATA_A_NVFP4) && !defined(USE_OCP_FP4)
 // UE4M3 scale in NVFP4 blocks use only 7 bits; sign (bit 7) is always zero.
 shared float ue4m3_fp32_lut[128];
 
@@ -1789,6 +1803,7 @@ float ue4m3_to_fp32_build(uint u) {
 }
 #endif
 
+#if !defined(USE_OCP_FP4)
 #define NEEDS_INIT_IQ_SHMEM
 void init_iq_shmem(uvec3 wgsize)
 {
@@ -1804,6 +1819,7 @@ void init_iq_shmem(uvec3 wgsize)
     barrier();
 }
 #endif
+#endif
 
 // returns the bfloat value in the low 16b.
 // See ggml_compute_fp32_to_bf16
@@ -1838,8 +1854,21 @@ float e8m0_to_fp32(uint8_t x) {
 }
 
 #if defined(DATA_A_NVFP4)
+#if defined(USE_OCP_FP4)
+floate4m3_t ue4m3_from_bits(uint8_t x) {
+    if (x == uint8_t(0x7F)) {
+        return floate4m3_t(0.0);
+    }
+    return uintBitsToFloate4m3EXT(x);
+}
+#endif
+
 float ue4m3_to_fp32(uint8_t x) {
+#if defined(USE_OCP_FP4)
+    return float(ue4m3_from_bits(x));
+#else
     return ue4m3_fp32_lut[uint(x)];
+#endif
 }
 #endif
 

ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp

@@ -610,6 +610,15 @@ void matmul_shaders(bool fp16, MatMulIdType matmul_id_type, bool coopmat, bool c
             string_to_spv(shader_name + "_" + tname + "_f16" + dot2_sfx, source_name,  merge_maps(merge_maps(base_dict, float_type_dict), {{data_a_key, "1"}, {"LOAD_VEC_A", load_vec_a}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f16}, {"B_TYPE_SCALAR", "float16_t"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}}), fp16, coopmat, coopmat2, f16acc);
         }
 
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+        if ((coopmat || coopmat2) && (tname == "mxfp4" || tname == "nvfp4")) {
+            if (!coopmat2) {
+                string_to_spv(shader_name + "_" + tname + "_f32_ocp" + dot2_sfx, source_name, merge_maps(merge_maps(base_dict, float_type_dict), {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"LOAD_VEC_A", load_vec_a}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f32}, {"B_TYPE_SCALAR", "float"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}}), fp16, coopmat, coopmat2, f16acc);
+            }
+            string_to_spv(shader_name + "_" + tname + "_f16_ocp" + dot2_sfx, source_name, merge_maps(merge_maps(base_dict, float_type_dict), {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"LOAD_VEC_A", load_vec_a}, {"LOAD_VEC_B", load_vec}, {"B_TYPE", aligned_b_type_f16}, {"B_TYPE_SCALAR", "float16_t"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}}), fp16, coopmat, coopmat2, f16acc);
+        }
+#endif
+
 #if defined(GGML_VULKAN_INTEGER_DOT_GLSLC_SUPPORT)
         // Integer dot mmq performs better with f32 accumulators (different shader, skip for dot2)
         if (!f16acc && !coopmat && !coopmat2 && !dot2 && (is_legacy_quant(tname) || is_k_quant(tname) || tname == "mxfp4")) {
@@ -732,6 +741,20 @@ void process_shaders() {
         string_to_spv("mul_mat_vec_" + tname + "_f32_f32_subgroup_no_shmem", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
         string_to_spv("mul_mat_vec_" + tname + "_f16_f32_subgroup_no_shmem", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"B_TYPE", "float16_t"}, {"B_TYPEV2", "f16vec2"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
 
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+        if (tname == "mxfp4" || tname == "nvfp4") {
+            string_to_spv("mul_mat_vec_" + tname + "_f32_f32_ocp", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}}));
+            string_to_spv("mul_mat_vec_" + tname + "_f16_f32_ocp", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float16_t"}, {"B_TYPEV2", "f16vec2"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}}));
+            string_to_spv("mul_mat_vec_" + tname + "_f32_f32_ocp_subgroup", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD", "1"}}));
+            string_to_spv("mul_mat_vec_" + tname + "_f16_f32_ocp_subgroup", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float16_t"}, {"B_TYPEV2", "f16vec2"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD", "1"}}));
+            string_to_spv("mul_mat_vec_" + tname + "_f32_f32_ocp_subgroup_no_shmem", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
+            string_to_spv("mul_mat_vec_" + tname + "_f16_f32_ocp_subgroup_no_shmem", shader, merge_maps(base_dict, {{data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float16_t"}, {"B_TYPEV2", "f16vec2"}, {"B_TYPEV4", "f16vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
+            string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32_ocp", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}}));
+            string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32_ocp_subgroup", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD", "1"}}));
+            string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32_ocp_subgroup_no_shmem", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"USE_OCP_FP4", "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
+        }
+#endif
+
         string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}}));
         string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32_subgroup", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD", "1"}}));
         string_to_spv("mul_mat_vec_id_" + tname + "_f32_f32_subgroup_no_shmem", shader, merge_maps(base_dict, {{"MUL_MAT_ID", "1"}, {data_a_key, "1"}, {"B_TYPE", "float"}, {"B_TYPEV2", "vec2"}, {"B_TYPEV4", "vec4"}, {"D_TYPE", "float"}, {"USE_SUBGROUP_ADD_NO_SHMEM", "1"}}));
@@ -1233,6 +1256,27 @@ void write_output_files() {
     }
     }
 
+#if defined(GGML_VULKAN_FLOAT_E2M1_GLSLC_SUPPORT) && defined(GGML_VULKAN_FLOAT_E4M3_GLSLC_SUPPORT)
+    for (const std::string& btype : {"f16", "f32"}) {
+    for (const std::string& tname : {"mxfp4", "nvfp4"}) {
+        hdr << "extern const void * arr_dmmv_"   << tname << "_" << btype << "_f32_ocp_data[3];\n";
+        hdr << "extern const uint64_t arr_dmmv_" << tname << "_" << btype << "_f32_ocp_len[3];\n";
+        if (basename(input_filepath) == "mul_mat_vec.comp") {
+            src << "const void * arr_dmmv_"   << tname << "_" << btype << "_f32_ocp_data[3] = {mul_mat_vec_" << tname << "_" << btype << "_f32_ocp_data, mul_mat_vec_" << tname << "_" << btype << "_f32_ocp_subgroup_data, mul_mat_vec_" << tname << "_" << btype << "_f32_ocp_subgroup_no_shmem_data};\n";
+            src << "const uint64_t arr_dmmv_" << tname << "_" << btype << "_f32_ocp_len[3] =  {mul_mat_vec_" << tname << "_" << btype << "_f32_ocp_len,  mul_mat_vec_" << tname << "_" << btype << "_f32_ocp_subgroup_len, mul_mat_vec_"  << tname << "_" << btype << "_f32_ocp_subgroup_no_shmem_len};\n";
+        }
+    }
+    }
+    for (const std::string& tname : {"mxfp4", "nvfp4"}) {
+        hdr << "extern const void * arr_dmmv_id_"   << tname << "_f32_f32_ocp_data[3];\n";
+        hdr << "extern const uint64_t arr_dmmv_id_" << tname << "_f32_f32_ocp_len[3];\n";
+        if (basename(input_filepath) == "mul_mat_vec.comp") {
+            src << "const void * arr_dmmv_id_"   << tname << "_f32_f32_ocp_data[3] = {mul_mat_vec_id_" << tname << "_f32_f32_ocp_data, mul_mat_vec_id_" << tname << "_f32_f32_ocp_subgroup_data, mul_mat_vec_id_" << tname << "_f32_f32_ocp_subgroup_no_shmem_data};\n";
+            src << "const uint64_t arr_dmmv_id_" << tname << "_f32_f32_ocp_len[3] =  {mul_mat_vec_id_" << tname << "_f32_f32_ocp_len,  mul_mat_vec_id_" << tname << "_f32_f32_ocp_subgroup_len, mul_mat_vec_id_"  << tname << "_f32_f32_ocp_subgroup_no_shmem_len};\n";
+        }
+    }
+#endif
+
     if (input_filepath == "") {
         write_file_if_changed(target_hpp, hdr.str());
     }