1 files changed, 74 insertions, 0 deletions
diff --git a/hw/display/apple-gfx.h b/hw/display/apple-gfx.h
new file mode 100644
index 0000000..a8b1d1e
--- /dev/null
+++ b/hw/display/apple-gfx.h
@@ -0,0 +1,74 @@
+/*
+ * Data structures and functions shared between variants of the macOS
+ * ParavirtualizedGraphics.framework based apple-gfx display adapter.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef QEMU_APPLE_GFX_H
+#define QEMU_APPLE_GFX_H
+
+#include "qemu/queue.h"
+#include "system/memory.h"
+#include "hw/qdev-properties.h"
+#include "ui/surface.h"
+
+#define TYPE_APPLE_GFX_MMIO         "apple-gfx-mmio"
+#define TYPE_APPLE_GFX_PCI          "apple-gfx-pci"
+
+@class PGDeviceDescriptor;
+@protocol PGDevice;
+@protocol PGDisplay;
+@protocol MTLDevice;
+@protocol MTLTexture;
+@protocol MTLCommandQueue;
+
+typedef QTAILQ_HEAD(, PGTask_s) PGTaskList;
+
+typedef struct AppleGFXDisplayMode {
+    uint16_t width_px;
+    uint16_t height_px;
+    uint16_t refresh_rate_hz;
+} AppleGFXDisplayMode;
+
+typedef struct AppleGFXState {
+    /* Initialised on init/realize() */
+    MemoryRegion iomem_gfx;
+    id<PGDevice> pgdev;
+    id<PGDisplay> pgdisp;
+    QemuConsole *con;
+    id<MTLDevice> mtl;
+    id<MTLCommandQueue> mtl_queue;
+    AppleGFXDisplayMode *display_modes;
+    uint32_t num_display_modes;
+
+    /* List `tasks` is protected by task_mutex */
+    QemuMutex task_mutex;
+    PGTaskList tasks;
+
+    /* Mutable state (BQL protected) */
+    QEMUCursor *cursor;
+    DisplaySurface *surface;
+    id<MTLTexture> texture;
+    int8_t pending_frames; /* # guest frames in the rendering pipeline */
+    bool gfx_update_requested; /* QEMU display system wants a new frame */
+    bool new_frame_ready; /* Guest has rendered a frame, ready to be used */
+    bool using_managed_texture_storage;
+    uint32_t rendering_frame_width;
+    uint32_t rendering_frame_height;
+
+    /* Mutable state (atomic) */
+    bool cursor_show;
+} AppleGFXState;
+
+void apple_gfx_common_init(Object *obj, AppleGFXState *s, const char* obj_name);
+bool apple_gfx_common_realize(AppleGFXState *s, DeviceState *dev,
+                              PGDeviceDescriptor *desc, Error **errp);
+void *apple_gfx_host_ptr_for_gpa_range(uint64_t guest_physical,
+                                       uint64_t length, bool read_only,
+                                       MemoryRegion **mapping_in_region);
+
+extern const PropertyInfo qdev_prop_apple_gfx_display_mode;
+
+#endif
+