1 files changed, 73 insertions, 0 deletions
diff --git a/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c b/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c
new file mode 100644
index 0000000000..660dbd0c33
--- /dev/null
+++ b/src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c
@@ -0,0 +1,73 @@
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "util/u_format.h"
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+
+#include "nouveau_drm_winsys.h"
+#include "nouveau_drm_public.h"
+
+#include "nouveau_drmif.h"
+#include "nouveau_channel.h"
+#include "nouveau_bo.h"
+
+#include "nouveau/nouveau_winsys.h"
+#include "nouveau/nouveau_screen.h"
+
+static void
+nouveau_drm_destroy_winsys(struct pipe_winsys *s)
+{
+	struct nouveau_winsys *nv_winsys = nouveau_winsys(s);
+	struct nouveau_screen *nv_screen= nouveau_screen(nv_winsys->pscreen);
+	nouveau_device_close(&nv_screen->device);
+	FREE(nv_winsys);
+}
+
+struct pipe_screen *
+nouveau_drm_screen_create(int fd)
+{
+	struct nouveau_winsys *nvws;
+	struct pipe_winsys *ws;
+	struct nouveau_device *dev = NULL;
+	struct pipe_screen *(*init)(struct pipe_winsys *,
+				    struct nouveau_device *);
+	int ret;
+
+	ret = nouveau_device_open_existing(&dev, 0, fd, 0);
+	if (ret)
+		return NULL;
+
+	switch (dev->chipset & 0xf0) {
+	case 0x30:
+	case 0x40:
+	case 0x60:
+		init = nvfx_screen_create;
+		break;
+	case 0x50:
+	case 0x80:
+	case 0x90:
+	case 0xa0:
+		init = nv50_screen_create;
+		break;
+	default:
+		debug_printf("%s: unknown chipset nv%02x\n", __func__,
+			     dev->chipset);
+		return NULL;
+	}
+
+	nvws = CALLOC_STRUCT(nouveau_winsys);
+	if (!nvws) {
+		nouveau_device_close(&dev);
+		return NULL;
+	}
+	ws = &nvws->base;
+	ws->destroy = nouveau_drm_destroy_winsys;
+
+	nvws->pscreen = init(ws, dev);
+	if (!nvws->pscreen) {
+		ws->destroy(ws);
+		return NULL;
+	}
+
+	return nvws->pscreen;
+}