1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/user.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/user.c
new file mode 100644
index 000000000000..ac835c9582fd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/user.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/memory.h>
+#include <subdev/mmu.h>
+
+#include <nvif/clb069.h>
+#include <nvif/unpack.h>
+
+static int
+nvkm_ufault_map(struct nvkm_object *object, void *argv, u32 argc,
+		enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object);
+	struct nvkm_device *device = buffer->fault->subdev.device;
+	*type = NVKM_OBJECT_MAP_IO;
+	*addr = device->func->resource_addr(device, 3) + buffer->addr;
+	*size = nvkm_memory_size(buffer->mem);
+	return 0;
+}
+
+static int
+nvkm_ufault_ntfy(struct nvkm_object *object, u32 type,
+		 struct nvkm_event **pevent)
+{
+	struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object);
+	if (type == NVB069_V0_NTFY_FAULT) {
+		*pevent = &buffer->fault->event;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int
+nvkm_ufault_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object);
+	buffer->fault->func->buffer.fini(buffer);
+	return 0;
+}
+
+static int
+nvkm_ufault_init(struct nvkm_object *object)
+{
+	struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object);
+	buffer->fault->func->buffer.init(buffer);
+	return 0;
+}
+
+static void *
+nvkm_ufault_dtor(struct nvkm_object *object)
+{
+	return NULL;
+}
+
+static const struct nvkm_object_func
+nvkm_ufault = {
+	.dtor = nvkm_ufault_dtor,
+	.init = nvkm_ufault_init,
+	.fini = nvkm_ufault_fini,
+	.ntfy = nvkm_ufault_ntfy,
+	.map = nvkm_ufault_map,
+};
+
+int
+nvkm_ufault_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
+		void *argv, u32 argc, struct nvkm_object **pobject)
+{
+	union {
+		struct nvif_clb069_v0 v0;
+	} *args = argv;
+	struct nvkm_fault *fault = device->fault;
+	struct nvkm_fault_buffer *buffer = fault->buffer[fault->func->user.rp];
+	int ret = -ENOSYS;
+
+	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+		args->v0.entries = buffer->entries;
+		args->v0.get = buffer->get;
+		args->v0.put = buffer->put;
+	} else
+		return ret;
+
+	nvkm_object_ctor(&nvkm_ufault, oclass, &buffer->object);
+	*pobject = &buffer->object;
+	return 0;
+}