drm/nouveau/gpio/nve0: interrupt regs moved on kepler apparently

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

5 files changed, 154 insertions, 6 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
index 9665f5f..76d5d54 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
@@ -24,7 +24,7 @@
  *
  */
 
-#include <subdev/gpio.h>
+#include "priv.h"
 
 struct nv10_gpio_priv {
 	struct nouveau_gpio base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
index cbe609a..bf489dc 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
@@ -22,7 +22,7 @@
  * Authors: Ben Skeggs
  */
 
-#include <subdev/gpio.h>
+#include "priv.h"
 
 struct nv50_gpio_priv {
 	struct nouveau_gpio base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
index 5ef16a2..010431e 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
@@ -22,13 +22,13 @@
  * Authors: Ben Skeggs
  */
 
-#include <subdev/gpio.h>
+#include "priv.h"
 
 struct nvd0_gpio_priv {
 	struct nouveau_gpio base;
 };
 
-static void
+void
 nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match)
 {
 	struct nouveau_bios *bios = nouveau_bios(gpio);
@@ -57,7 +57,7 @@ nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match)
 	}
 }
 
-static int
+int
 nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out)
 {
 	u32 data = ((dir ^ 1) << 13) | (out << 12);
@@ -66,7 +66,7 @@ nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out)
 	return 0;
 }
 
-static int
+int
 nvd0_gpio_sense(struct nouveau_gpio *gpio, int line)
 {
 	return !!(nv_rd32(gpio, 0x00d610 + (line * 4)) & 0x00004000);
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
new file mode 100644
index 0000000..16b8c5b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
@@ -0,0 +1,131 @@
+/*
+ * 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"
+
+struct nve0_gpio_priv {
+	struct nouveau_gpio base;
+};
+
+void
+nve0_gpio_intr(struct nouveau_subdev *subdev)
+{
+	struct nve0_gpio_priv *priv = (void *)subdev;
+	u32 intr0 = nv_rd32(priv, 0xdc00) & nv_rd32(priv, 0xdc08);
+	u32 intr1 = nv_rd32(priv, 0xdc80) & nv_rd32(priv, 0xdc88);
+	u32 hi = (intr0 & 0x0000ffff) | (intr1 << 16);
+	u32 lo = (intr0 >> 16) | (intr1 & 0xffff0000);
+	int i;
+
+	for (i = 0; (hi | lo) && i < 32; i++) {
+		if ((hi | lo) & (1 << i))
+			nouveau_event_trigger(priv->base.events, i);
+	}
+
+	nv_wr32(priv, 0xdc00, intr0);
+	nv_wr32(priv, 0xdc88, intr1);
+}
+
+void
+nve0_gpio_intr_enable(struct nouveau_event *event, int line)
+{
+	const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
+	const u32 mask = 0x00010001 << (line & 0xf);
+	nv_wr32(event->priv, addr + 0x08, mask);
+	nv_mask(event->priv, addr + 0x00, mask, mask);
+}
+
+void
+nve0_gpio_intr_disable(struct nouveau_event *event, int line)
+{
+	const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
+	const u32 mask = 0x00010001 << (line & 0xf);
+	nv_wr32(event->priv, addr + 0x08, mask);
+	nv_mask(event->priv, addr + 0x00, mask, 0x00000000);
+}
+
+int
+nve0_gpio_fini(struct nouveau_object *object, bool suspend)
+{
+	struct nve0_gpio_priv *priv = (void *)object;
+	nv_wr32(priv, 0xdc08, 0x00000000);
+	nv_wr32(priv, 0xdc88, 0x00000000);
+	return nouveau_gpio_fini(&priv->base, suspend);
+}
+
+int
+nve0_gpio_init(struct nouveau_object *object)
+{
+	struct nve0_gpio_priv *priv = (void *)object;
+	int ret;
+
+	ret = nouveau_gpio_init(&priv->base);
+	if (ret)
+		return ret;
+
+	nv_wr32(priv, 0xdc00, 0xffffffff);
+	nv_wr32(priv, 0xdc80, 0xffffffff);
+	return 0;
+}
+
+void
+nve0_gpio_dtor(struct nouveau_object *object)
+{
+	struct nve0_gpio_priv *priv = (void *)object;
+	nouveau_gpio_destroy(&priv->base);
+}
+
+static int
+nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct nve0_gpio_priv *priv;
+	int ret;
+
+	ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.reset = nvd0_gpio_reset;
+	priv->base.drive = nvd0_gpio_drive;
+	priv->base.sense = nvd0_gpio_sense;
+	priv->base.events->priv = priv;
+	priv->base.events->enable = nve0_gpio_intr_enable;
+	priv->base.events->disable = nve0_gpio_intr_disable;
+	nv_subdev(priv)->intr = nve0_gpio_intr;
+	return 0;
+}
+
+struct nouveau_oclass
+nve0_gpio_oclass = {
+	.handle = NV_SUBDEV(GPIO, 0xe0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nve0_gpio_ctor,
+		.dtor = nv50_gpio_dtor,
+		.init = nve0_gpio_init,
+		.fini = nve0_gpio_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h
new file mode 100644
index 0000000..2ee1c89
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h
@@ -0,0 +1,17 @@
+#ifndef __NVKM_GPIO_H__
+#define __NVKM_GPIO_H__
+
+#include <subdev/gpio.h>
+
+void nv50_gpio_dtor(struct nouveau_object *);
+int  nv50_gpio_init(struct nouveau_object *);
+int  nv50_gpio_fini(struct nouveau_object *, bool);
+void nv50_gpio_intr(struct nouveau_subdev *);
+void nv50_gpio_intr_enable(struct nouveau_event *, int line);
+void nv50_gpio_intr_disable(struct nouveau_event *, int line);
+
+void nvd0_gpio_reset(struct nouveau_gpio *, u8);
+int  nvd0_gpio_drive(struct nouveau_gpio *, int, int, int);
+int  nvd0_gpio_sense(struct nouveau_gpio *, int);
+
+#endif