1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
new file mode 100644
index 000000000000..f865d2a3e184
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include "priv.h"
+
+#include <core/msgqueue.h>
+#include <engine/falcon.h>
+
+static void *
+nvkm_sec2_dtor(struct nvkm_engine *engine)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	nvkm_msgqueue_del(&sec2->queue);
+	nvkm_falcon_del(&sec2->falcon);
+	return sec2;
+}
+
+static void
+nvkm_sec2_intr(struct nvkm_engine *engine)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	struct nvkm_subdev *subdev = &engine->subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 disp = nvkm_rd32(device, 0x8701c);
+	u32 intr = nvkm_rd32(device, 0x87008) & disp & ~(disp >> 16);
+
+	if (intr & 0x00000040) {
+		schedule_work(&sec2->work);
+		nvkm_wr32(device, 0x87004, 0x00000040);
+		intr &= ~0x00000040;
+	}
+
+	if (intr) {
+		nvkm_error(subdev, "unhandled intr %08x\n", intr);
+		nvkm_wr32(device, 0x87004, intr);
+
+	}
+}
+
+static void
+nvkm_sec2_recv(struct work_struct *work)
+{
+	struct nvkm_sec2 *sec2 = container_of(work, typeof(*sec2), work);
+
+	if (!sec2->queue) {
+		nvkm_warn(&sec2->engine.subdev,
+			  "recv function called while no firmware set!\n");
+		return;
+	}
+
+	nvkm_msgqueue_recv(sec2->queue);
+}
+
+
+static int
+nvkm_sec2_oneinit(struct nvkm_engine *engine)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	return nvkm_falcon_v1_new(&sec2->engine.subdev, "SEC2", 0x87000,
+				  &sec2->falcon);
+}
+
+static int
+nvkm_sec2_fini(struct nvkm_engine *engine, bool suspend)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	flush_work(&sec2->work);
+	return 0;
+}
+
+static const struct nvkm_engine_func
+nvkm_sec2 = {
+	.dtor = nvkm_sec2_dtor,
+	.oneinit = nvkm_sec2_oneinit,
+	.fini = nvkm_sec2_fini,
+	.intr = nvkm_sec2_intr,
+};
+
+int
+nvkm_sec2_new_(struct nvkm_device *device, int index,
+	       struct nvkm_sec2 **psec2)
+{
+	struct nvkm_sec2 *sec2;
+
+	if (!(sec2 = *psec2 = kzalloc(sizeof(*sec2), GFP_KERNEL)))
+		return -ENOMEM;
+	INIT_WORK(&sec2->work, nvkm_sec2_recv);
+
+	return nvkm_engine_ctor(&nvkm_sec2, device, index, true, &sec2->engine);
+};