ggml: new backend for Virglrenderer API Remoting acceleration (v2) (#18718)

2026-01-28 10:49:40 +01:00
parent 6ad70c5a77
commit b7feacf7f3
47 changed files with 4711 additions and 0 deletions
@@ -0,0 +1,46 @@
+#pragma once
+
+#include "apir_backend.gen.h"
+
+#include <stdint.h>  // for uintptr_t
+#include <time.h>    // for timespec, clock_gettime
+
+#define APIR_BACKEND_INITIALIZE_SUCCESS                     0
+#define APIR_BACKEND_INITIALIZE_CANNOT_OPEN_BACKEND_LIBRARY 1
+#define APIR_BACKEND_INITIALIZE_CANNOT_OPEN_GGML_LIBRARY    2
+#define APIR_BACKEND_INITIALIZE_MISSING_BACKEND_SYMBOLS     3
+#define APIR_BACKEND_INITIALIZE_MISSING_GGML_SYMBOLS        4
+#define APIR_BACKEND_INITIALIZE_BACKEND_FAILED              5
+#define APIR_BACKEND_INITIALIZE_BACKEND_REG_FAILED          6
+#define APIR_BACKEND_INITIALIZE_ALREADY_INITED              7
+#define APIR_BACKEND_INITIALIZE_NO_DEVICE                   8
+
+
+// new entries here need to be added to the apir_backend_initialize_error function below
+
+#define APIR_BACKEND_FORWARD_INDEX_INVALID 6
+
+// 0 is fast, 1 avoids the backend to crash if an unsupported tensor is received
+#define APIR_BACKEND_CHECK_SUPPORTS_OP 0
+
+typedef uintptr_t apir_buffer_type_host_handle_t;
+typedef uintptr_t apir_buffer_host_handle_t;
+
+static const char * apir_backend_initialize_error(int code) {
+#define APIR_BACKEND_INITIALIZE_ERROR(code_name) \
+    do {                                         \
+        if (code == code_name)                   \
+            return #code_name;                   \
+    } while (0)
+
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_SUCCESS);
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_CANNOT_OPEN_BACKEND_LIBRARY);
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_CANNOT_OPEN_GGML_LIBRARY);
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_MISSING_BACKEND_SYMBOLS);
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_MISSING_GGML_SYMBOLS);
+    APIR_BACKEND_INITIALIZE_ERROR(APIR_BACKEND_INITIALIZE_BACKEND_FAILED);
+
+    return "Unknown APIR_BACKEND_INITIALIZE error:/";
+
+#undef APIR_BACKEND_INITIALIZE_ERROR
+}