X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fsubdev%2Ftherm%2Fgt215.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fsubdev%2Ftherm%2Fgt215.c;h=e99be20332f2d4ba934c742d8536bb009a0c42aa;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
new file mode 100644
index 000000000..e99be2033
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2012 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.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+#include <core/device.h>
+#include <subdev/gpio.h>
+
+struct gt215_therm_priv {
+	struct nvkm_therm_priv base;
+};
+
+int
+gt215_therm_fan_sense(struct nvkm_therm *therm)
+{
+	u32 tach = nv_rd32(therm, 0x00e728) & 0x0000ffff;
+	u32 ctrl = nv_rd32(therm, 0x00e720);
+	if (ctrl & 0x00000001)
+		return tach * 60 / 2;
+	return -ENODEV;
+}
+
+static int
+gt215_therm_init(struct nvkm_object *object)
+{
+	struct gt215_therm_priv *priv = (void *)object;
+	struct dcb_gpio_func *tach = &priv->base.fan->tach;
+	int ret;
+
+	ret = nvkm_therm_init(&priv->base.base);
+	if (ret)
+		return ret;
+
+	g84_sensor_setup(&priv->base.base);
+
+	/* enable fan tach, count revolutions per-second */
+	nv_mask(priv, 0x00e720, 0x00000003, 0x00000002);
+	if (tach->func != DCB_GPIO_UNUSED) {
+		nv_wr32(priv, 0x00e724, nv_device(priv)->crystal * 1000);
+		nv_mask(priv, 0x00e720, 0x001f0000, tach->line << 16);
+		nv_mask(priv, 0x00e720, 0x00000001, 0x00000001);
+	}
+	nv_mask(priv, 0x00e720, 0x00000002, 0x00000000);
+
+	return 0;
+}
+
+static int
+gt215_therm_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		 struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	struct gt215_therm_priv *priv;
+	int ret;
+
+	ret = nvkm_therm_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.base.pwm_ctrl = nv50_fan_pwm_ctrl;
+	priv->base.base.pwm_get = nv50_fan_pwm_get;
+	priv->base.base.pwm_set = nv50_fan_pwm_set;
+	priv->base.base.pwm_clock = nv50_fan_pwm_clock;
+	priv->base.base.temp_get = g84_temp_get;
+	priv->base.base.fan_sense = gt215_therm_fan_sense;
+	priv->base.sensor.program_alarms = nvkm_therm_program_alarms_polling;
+	return nvkm_therm_preinit(&priv->base.base);
+}
+
+struct nvkm_oclass
+gt215_therm_oclass = {
+	.handle = NV_SUBDEV(THERM, 0xa3),
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = gt215_therm_ctor,
+		.dtor = _nvkm_therm_dtor,
+		.init = gt215_therm_init,
+		.fini = g84_therm_fini,
+	},
+};