opencl: disable FA and MoE weights repack to work around compiler issues for Adreno 850 GPU (#25745)

* opencl: workaround for A850 compiler compat

* opencl: fix DX compiler version parsing and cleanup

---------

Co-authored-by: Li He <lih@qti.qualcomm.com>

ggml/src/ggml-opencl/ggml-opencl.cpp

@@ -123,6 +123,7 @@ enum ADRENO_GPU_GEN {
 
 enum ADRENO_CL_COMPILER_TYPE {
     E031,
+    E17,
     DX,
 };
 
@@ -264,7 +265,8 @@ static ADRENO_GPU_GEN get_adreno_gpu_gen(const char *device_name) {
     }
 
     if (strstr(device_name, "830") ||
-        strstr(device_name, "840")) {
+        strstr(device_name, "840") ||
+        strstr(device_name, "850")) {
         return ADRENO_GPU_GEN::A8X;
     }
 
@@ -288,6 +290,17 @@ static ggml_cl_compiler_version get_adreno_cl_compiler_version(const char *drive
     size_t compiler_minor_offset = 8;
     size_t compiler_patch_offset = 11;
 
+    if (compiler_ver_pos == std::string::npos) {
+        compiler_ver_pos = driver_ver_str.find("E17");
+        if (compiler_ver_pos != std::string::npos) {
+            type = ADRENO_CL_COMPILER_TYPE::E17;
+            compiler_ver_len = 12;
+            compiler_major_offset = 4;
+            compiler_minor_offset = 7;
+            compiler_patch_offset = 10;
+        }
+    }
+
     if (compiler_ver_pos == std::string::npos) {
         compiler_ver_pos = driver_ver_str.find("DX");
         if (compiler_ver_pos == std::string::npos) {
@@ -296,6 +309,8 @@ static ggml_cl_compiler_version get_adreno_cl_compiler_version(const char *drive
         type = ADRENO_CL_COMPILER_TYPE::DX;
         compiler_ver_len = 11;
         compiler_major_offset = 3;
+        compiler_minor_offset = 6;
+        compiler_patch_offset = 9;
     }
 
     std::string compiler_ver_str = driver_ver_str.substr(compiler_ver_pos, compiler_ver_len);
@@ -1655,6 +1670,7 @@ static void load_cl_kernels(ggml_backend_opencl_context *backend_ctx) {
     // those compiler versions since it is anyway not used for Adreno.
     if (backend_ctx->gpu_family != ADRENO ||
         backend_ctx->adreno_cl_compiler_version.newer_than_or_same(E031, 38, 11, 0) ||
+        backend_ctx->adreno_cl_compiler_version.type == E17 ||
         backend_ctx->adreno_cl_compiler_version.type == DX) {
 #ifdef GGML_OPENCL_EMBED_KERNELS
         const std::string kernel_src {
@@ -6946,6 +6962,15 @@ inline bool use_adreno_kernels(const ggml_backend_opencl_context *backend_ctx, c
     return threashold_ok;
 }
 
+static bool adreno_e17_compiler_quirks(const ggml_backend_opencl_context *backend_ctx) {
+    if (!backend_ctx || backend_ctx->gpu_family != GPU_FAMILY::ADRENO ||
+        backend_ctx->adreno_cl_compiler_version.type != ADRENO_CL_COMPILER_TYPE::E17) {
+        return false;
+    }
+    const char * env = getenv("GGML_OPENCL_ADRENO_E17_QUIRKS");
+    return !(env && env[0] == '0');
+}
+
 inline bool use_adreno_moe_kernels(const ggml_backend_opencl_context *backend_ctx, const ggml_tensor *tensor) {
     // The moe weight repack kernels *_trans4_ns alias a private ushort8 through a uchar*.
     // Certain compilers (found with some A7x and A6x) miscompiles this, corrupting the weights.
@@ -6957,6 +6982,11 @@ inline bool use_adreno_moe_kernels(const ggml_backend_opencl_context *backend_ct
                         backend_ctx->adreno_gen == ADRENO_GPU_GEN::ADRENO_UNKNOWN)) {
         return false;
     }
+
+    if (adreno_e17_compiler_quirks(backend_ctx)) {
+        return false;
+    }
+
     int ne01 = tensor->ne[1];
     return (((strstr(tensor->name, "ffn") != NULL) && (strstr(tensor->name, "exps") != NULL)) || (strstr(tensor->name, "as") != NULL)) && (ne01 % 32 == 0);
 }
@@ -7289,6 +7319,10 @@ static bool ggml_opencl_supports_op(ggml_backend_dev_t dev, const struct ggml_te
         case GGML_OP_MEAN:
             return op->src[0]->type == GGML_TYPE_F32;
         case GGML_OP_FLASH_ATTN_EXT: {
+            // The E17 compilers segfault while building FA kernels, skip E17 for now
+            if (adreno_e17_compiler_quirks(backend_ctx)) {
+                return false;
+            }
             const ggml_tensor * q = op->src[0];
             const ggml_tensor * k = op->src[1];
             const ggml_tensor * v = op->src[2];

ggml/src/ggml-opencl/kernels/gemm_moe_mxfp4_f32_ns.cl

@@ -274,8 +274,9 @@ kernel void kernel_gemm_moe_mxfp4_f32_ns(
         shared_b[b_local_offset.y] = bx8_f16.hi;
 
         // Dequantization
-        reg_a.lo = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.lo)) * s;
-        reg_a.hi = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.hi)) * s;
+        // Cast the e8m0 scale to half to satisfy E17 compilers
+        reg_a.lo = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.lo)) * (half)s;
+        reg_a.hi = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.hi)) * (half)s;
 
         sub_group_barrier(CLK_LOCAL_MEM_FENCE);
 
@@ -304,8 +305,9 @@ kernel void kernel_gemm_moe_mxfp4_f32_ns(
         shared_b[b_local_offset.y] = bx8_f16.hi;
 
         // Dequantization
-        reg_a.lo = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.lo)) * s;
-        reg_a.hi = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.hi)) * s;
+        // Cast the e8m0 scale to half to satisfy E17 compilers
+        reg_a.lo = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.lo)) * (half)s;
+        reg_a.hi = mxfp4_to_fp16_packed8(as_ushort2(mxfp4x16.hi)) * (half)s;
 
         sub_group_barrier(CLK_LOCAL_MEM_FENCE);
 

ggml/src/ggml-opencl/kernels/mul_mv_q4_k_f32.cl

@@ -1,3 +1,5 @@
+#pragma OPENCL EXTENSION cl_khr_fp16 : enable
+
 #ifdef cl_intel_required_subgroup_size
 #pragma OPENCL EXTENSION cl_intel_required_subgroup_size : enable
 #define INTEL_GPU 1