1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp100.c
new file mode 100644
index 000000000..6af7959e0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp100.c
@@ -0,0 +1,89 @@
+/*
+ * 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/mc.h>
+
+#include <nvif/class.h>
+
+void
+gp100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable)
+{
+	struct nvkm_device *device = buffer->fault->subdev.device;
+	nvkm_mc_intr_mask(device, NVKM_SUBDEV_FAULT, 0, enable);
+}
+
+void
+gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer)
+{
+	struct nvkm_device *device = buffer->fault->subdev.device;
+	nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000);
+}
+
+void
+gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer)
+{
+	struct nvkm_device *device = buffer->fault->subdev.device;
+	nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->addr));
+	nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->addr));
+	nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001);
+}
+
+u64 gp100_fault_buffer_pin(struct nvkm_fault_buffer *buffer)
+{
+	return nvkm_memory_bar2(buffer->mem);
+}
+
+void
+gp100_fault_buffer_info(struct nvkm_fault_buffer *buffer)
+{
+	buffer->entries = nvkm_rd32(buffer->fault->subdev.device, 0x002a78);
+	buffer->get = 0x002a7c;
+	buffer->put = 0x002a80;
+}
+
+void
+gp100_fault_intr(struct nvkm_fault *fault)
+{
+	nvkm_event_send(&fault->event, 1, 0, NULL, 0);
+}
+
+static const struct nvkm_fault_func
+gp100_fault = {
+	.intr = gp100_fault_intr,
+	.buffer.nr = 1,
+	.buffer.entry_size = 32,
+	.buffer.info = gp100_fault_buffer_info,
+	.buffer.pin = gp100_fault_buffer_pin,
+	.buffer.init = gp100_fault_buffer_init,
+	.buffer.fini = gp100_fault_buffer_fini,
+	.buffer.intr = gp100_fault_buffer_intr,
+	.user = { { 0, 0, MAXWELL_FAULT_BUFFER_A }, 0 },
+};
+
+int
+gp100_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+		struct nvkm_fault **pfault)
+{
+	return nvkm_fault_new_(&gp100_fault, device, type, inst, pfault);
+}