1 files changed, 118 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 000000000..092c6d0b8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/base.c
@@ -0,0 +1,118 @@
+/*
+ * 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/firmware.h>
+#include <subdev/top.h>
+
+static void
+nvkm_sec2_recv(struct work_struct *work)
+{
+	struct nvkm_sec2 *sec2 = container_of(work, typeof(*sec2), work);
+
+	if (!sec2->initmsg_received) {
+		int ret = sec2->func->initmsg(sec2);
+		if (ret) {
+			nvkm_error(&sec2->engine.subdev,
+				   "error parsing init message: %d\n", ret);
+			return;
+		}
+
+		sec2->initmsg_received = true;
+	}
+
+	nvkm_falcon_msgq_recv(sec2->msgq);
+}
+
+static void
+nvkm_sec2_intr(struct nvkm_engine *engine)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	sec2->func->intr(sec2);
+}
+
+static int
+nvkm_sec2_fini(struct nvkm_engine *engine, bool suspend)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+
+	flush_work(&sec2->work);
+
+	if (suspend) {
+		nvkm_falcon_cmdq_fini(sec2->cmdq);
+		sec2->initmsg_received = false;
+	}
+
+	return 0;
+}
+
+static void *
+nvkm_sec2_dtor(struct nvkm_engine *engine)
+{
+	struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
+	nvkm_falcon_msgq_del(&sec2->msgq);
+	nvkm_falcon_cmdq_del(&sec2->cmdq);
+	nvkm_falcon_qmgr_del(&sec2->qmgr);
+	nvkm_falcon_dtor(&sec2->falcon);
+	return sec2;
+}
+
+static const struct nvkm_engine_func
+nvkm_sec2 = {
+	.dtor = nvkm_sec2_dtor,
+	.fini = nvkm_sec2_fini,
+	.intr = nvkm_sec2_intr,
+};
+
+int
+nvkm_sec2_new_(const struct nvkm_sec2_fwif *fwif, struct nvkm_device *device,
+	       enum nvkm_subdev_type type, int inst, u32 addr, struct nvkm_sec2 **psec2)
+{
+	struct nvkm_sec2 *sec2;
+	int ret;
+
+	if (!(sec2 = *psec2 = kzalloc(sizeof(*sec2), GFP_KERNEL)))
+		return -ENOMEM;
+
+	ret = nvkm_engine_ctor(&nvkm_sec2, device, type, inst, true, &sec2->engine);
+	if (ret)
+		return ret;
+
+	fwif = nvkm_firmware_load(&sec2->engine.subdev, fwif, "Sec2", sec2);
+	if (IS_ERR(fwif))
+		return PTR_ERR(fwif);
+
+	sec2->func = fwif->func;
+
+	ret = nvkm_falcon_ctor(sec2->func->flcn, &sec2->engine.subdev,
+			       sec2->engine.subdev.name, addr, &sec2->falcon);
+	if (ret)
+		return ret;
+
+	if ((ret = nvkm_falcon_qmgr_new(&sec2->falcon, &sec2->qmgr)) ||
+	    (ret = nvkm_falcon_cmdq_new(sec2->qmgr, "cmdq", &sec2->cmdq)) ||
+	    (ret = nvkm_falcon_msgq_new(sec2->qmgr, "msgq", &sec2->msgq)))
+		return ret;
+
+	INIT_WORK(&sec2->work, nvkm_sec2_recv);
+	return 0;
+};