drm/nouveau/therm/gm200: Added

This allows temperature readouts on maxwell2 GPUs.
Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h

@@ -96,4 +96,5 @@ int g84_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
 int gt215_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
 int gf119_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
 int gm107_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
+int gm200_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2043,6 +2043,7 @@ nv120_chipset = {
 	.mxm = nv50_mxm_new,
 	.pci = gk104_pci_new,
 	.pmu = gm107_pmu_new,
+	.therm = gm200_therm_new,
 	.secboot = gm200_secboot_new,
 	.timer = gk20a_timer_new,
 	.top = gk104_top_new,
@@ -2077,6 +2078,7 @@ nv124_chipset = {
 	.mxm = nv50_mxm_new,
 	.pci = gk104_pci_new,
 	.pmu = gm107_pmu_new,
+	.therm = gm200_therm_new,
 	.secboot = gm200_secboot_new,
 	.timer = gk20a_timer_new,
 	.top = gk104_top_new,
@@ -2111,6 +2113,7 @@ nv126_chipset = {
 	.mxm = nv50_mxm_new,
 	.pci = gk104_pci_new,
 	.pmu = gm107_pmu_new,
+	.therm = gm200_therm_new,
 	.secboot = gm200_secboot_new,
 	.timer = gk20a_timer_new,
 	.top = gk104_top_new,

drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild

@@ -11,3 +11,4 @@ nvkm-y += nvkm/subdev/therm/g84.o
 nvkm-y += nvkm/subdev/therm/gt215.o
 nvkm-y += nvkm/subdev/therm/gf119.o
 nvkm-y += nvkm/subdev/therm/gm107.o
+nvkm-y += nvkm/subdev/therm/gm200.o

drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c

@@ -203,7 +203,7 @@ g84_therm_fini(struct nvkm_therm *therm)
 	nvkm_wr32(device, 0x1100, 0x10000); /* PBUS */
 }
 
-static void
+void
 g84_therm_init(struct nvkm_therm *therm)
 {
 	g84_sensor_setup(therm);

drivers/gpu/drm/nouveau/nvkm/subdev/therm/gm200.c

+/*
+ * Copyright 2017 Karol Herbst
+ *
+ * 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: Karol Herbst
+ */
+#include "priv.h"
+
+static const struct nvkm_therm_func
+gm200_therm = {
+	.init = g84_therm_init,
+	.fini = g84_therm_fini,
+	.temp_get = g84_temp_get,
+	.program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gm200_therm_new(struct nvkm_device *device, int index,
+		struct nvkm_therm **ptherm)
+{
+	return nvkm_therm_new_(&gm200_therm, device, index, ptherm);
+}

drivers/gpu/drm/nouveau/nvkm/subdev/therm/priv.h

@@ -111,6 +111,7 @@ void g84_therm_fini(struct nvkm_therm *);
 
 int gt215_therm_fan_sense(struct nvkm_therm *);
 
+void g84_therm_init(struct nvkm_therm *);
 void gf119_therm_init(struct nvkm_therm *);
 
 int nvkm_fanpwm_create(struct nvkm_therm *, struct dcb_gpio_func *);