metal : add apple device id (ggml-org#23566)

Co-authored-by: lvyichen <lvyichen@stepfun.com>

Author: forforever73

ggml/src/ggml-metal/ggml-metal-device.h

@@ -215,6 +215,30 @@ void ggml_metal_rsets_free(ggml_metal_rsets_t rsets);
 // device
 //
 
+enum ggml_metal_device_id {
+    GGML_METAL_DEVICE_GENERIC = 0,
+
+    GGML_METAL_DEVICE_M1,
+    GGML_METAL_DEVICE_M1_PRO,
+    GGML_METAL_DEVICE_M1_MAX,
+    GGML_METAL_DEVICE_M1_ULTRA,
+    GGML_METAL_DEVICE_M2,
+    GGML_METAL_DEVICE_M2_PRO,
+    GGML_METAL_DEVICE_M2_MAX,
+    GGML_METAL_DEVICE_M2_ULTRA,
+    GGML_METAL_DEVICE_M3,
+    GGML_METAL_DEVICE_M3_PRO,
+    GGML_METAL_DEVICE_M3_MAX,
+    GGML_METAL_DEVICE_M3_ULTRA,
+    GGML_METAL_DEVICE_M4,
+    GGML_METAL_DEVICE_M4_PRO,
+    GGML_METAL_DEVICE_M4_MAX,
+    GGML_METAL_DEVICE_M5,
+    GGML_METAL_DEVICE_M5_PRO,
+    GGML_METAL_DEVICE_M5_MAX,
+    GGML_METAL_DEVICE_M5_ULTRA,
+};
+
 struct ggml_metal_device_props {
     int device;
     char name[128];
@@ -234,6 +258,8 @@ struct ggml_metal_device_props {
 
     bool supports_gpu_family_apple7;
 
+    enum ggml_metal_device_id device_id;
+
     int op_offload_min_batch_size;
 };
 

ggml/src/ggml-metal/ggml-metal-device.m

@@ -628,6 +628,50 @@ void ggml_metal_rsets_free(ggml_metal_rsets_t rsets) {
     free(rsets);
 }
 
+static enum ggml_metal_device_id ggml_metal_device_id_parse(const char * name) {
+    if (!name) {
+        return GGML_METAL_DEVICE_GENERIC;
+    }
+
+    static const char prefix[] = "Apple ";
+    if (strncmp(name, prefix, sizeof(prefix) - 1) != 0) {
+        return GGML_METAL_DEVICE_GENERIC;
+    }
+    const char * suffix = name + sizeof(prefix) - 1;
+
+    static const struct {
+        const char * name;
+        enum ggml_metal_device_id id;
+    } table[] = {
+        {"M1",       GGML_METAL_DEVICE_M1},
+        {"M1 Pro",   GGML_METAL_DEVICE_M1_PRO},
+        {"M1 Max",   GGML_METAL_DEVICE_M1_MAX},
+        {"M1 Ultra", GGML_METAL_DEVICE_M1_ULTRA},
+        {"M2",       GGML_METAL_DEVICE_M2},
+        {"M2 Pro",   GGML_METAL_DEVICE_M2_PRO},
+        {"M2 Max",   GGML_METAL_DEVICE_M2_MAX},
+        {"M2 Ultra", GGML_METAL_DEVICE_M2_ULTRA},
+        {"M3",       GGML_METAL_DEVICE_M3},
+        {"M3 Pro",   GGML_METAL_DEVICE_M3_PRO},
+        {"M3 Max",   GGML_METAL_DEVICE_M3_MAX},
+        {"M3 Ultra", GGML_METAL_DEVICE_M3_ULTRA},
+        {"M4",       GGML_METAL_DEVICE_M4},
+        {"M4 Pro",   GGML_METAL_DEVICE_M4_PRO},
+        {"M4 Max",   GGML_METAL_DEVICE_M4_MAX},
+        {"M5",       GGML_METAL_DEVICE_M5},
+        {"M5 Pro",   GGML_METAL_DEVICE_M5_PRO},
+        {"M5 Max",   GGML_METAL_DEVICE_M5_MAX},
+        {"M5 Ultra", GGML_METAL_DEVICE_M5_ULTRA},
+    };
+
+    for (size_t i = 0; i < sizeof(table)/sizeof(table[0]); ++i) {
+        if (strcmp(suffix, table[i].name) == 0) {
+            return table[i].id;
+        }
+    }
+    return GGML_METAL_DEVICE_GENERIC;
+}
+
 ggml_metal_device_t ggml_metal_device_init(int device) {
     ggml_metal_device_t dev = calloc(1, sizeof(struct ggml_metal_device));
 
@@ -795,6 +839,8 @@ ggml_metal_device_t ggml_metal_device_init(int device) {
 
             dev->props.supports_gpu_family_apple7 = [dev->mtl_device supportsFamily:MTLGPUFamilyApple7];
 
+            dev->props.device_id = ggml_metal_device_id_parse([[dev->mtl_device name] UTF8String]);
+
             dev->props.op_offload_min_batch_size  = getenv("GGML_OP_OFFLOAD_MIN_BATCH") ? atoi(getenv("GGML_OP_OFFLOAD_MIN_BATCH")) : 32;
 
             dev->props.max_buffer_size            = dev->mtl_device.maxBufferLength;