1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c
new file mode 100644
index 000000000000..9f0dea3f61dc
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2017 Rhys Kidd
+ *
+ * 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.
+ *
+ * Authors: Rhys Kidd
+ */
+#include "priv.h"
+
+static int
+gp100_temp_get(struct nvkm_therm *therm)
+{
+	struct nvkm_device *device = therm->subdev.device;
+	struct nvkm_subdev *subdev = &therm->subdev;
+	u32 tsensor = nvkm_rd32(device, 0x020460);
+	u32 inttemp = (tsensor & 0x0001fff8);
+
+	/* device SHADOWed */
+	if (tsensor & 0x40000000)
+		nvkm_trace(subdev, "reading temperature from SHADOWed sensor\n");
+
+	/* device valid */
+	if (tsensor & 0x20000000)
+		return (inttemp >> 8);
+	else
+		return -ENODEV;
+}
+
+static const struct nvkm_therm_func
+gp100_therm = {
+	.temp_get = gp100_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gp100_therm_new(struct nvkm_device *device, int index,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gp100_therm, device, index, ptherm);
+}