drm/nouveau/ibus: add GP10B support

GP10B requires a specific initialization sequence due to the absence of
devinit.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
index c4ecf255ff3937ae3a268636a48345a5f527a882..6e2b70bd2f411a524f985fc181f1d0aa227a3e83 100644 (file)
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
@@ -7,4 +7,5 @@ int gf117_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 int gk104_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 int gk20a_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 int gm200_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
+int gp10b_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 #endif

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild
index ad572d3b5466ade5f4d600106f588908949c3cda..7f5883b78efae50de684bd4437a5406eef368de3 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild
@@ -3,3 +3,4 @@ nvkm-y += nvkm/subdev/ibus/gf117.o
 nvkm-y += nvkm/subdev/ibus/gk104.o
 nvkm-y += nvkm/subdev/ibus/gk20a.o
 nvkm-y += nvkm/subdev/ibus/gm200.o
+nvkm-y += nvkm/subdev/ibus/gp10b.o

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gp10b.c
new file mode 100644 (file)
index 0000000..39db90a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gp10b.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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 <subdev/ibus.h>
+
+#include "priv.h"
+
+static int
+gp10b_ibus_init(struct nvkm_subdev *ibus)
+{
+       struct nvkm_device *device = ibus->device;
+
+       nvkm_wr32(device, 0x1200a8, 0x0);
+
+       /* init ring */
+       nvkm_wr32(device, 0x12004c, 0x4);
+       nvkm_wr32(device, 0x122204, 0x2);
+       nvkm_rd32(device, 0x122204);
+
+       /* timeout configuration */
+       nvkm_wr32(device, 0x009080, 0x800186a0);
+
+       return 0;
+}
+
+static const struct nvkm_subdev_func
+gp10b_ibus = {
+       .init = gp10b_ibus_init,
+       .intr = gk104_ibus_intr,
+};
+
+int
+gp10b_ibus_new(struct nvkm_device *device, int index,
+              struct nvkm_subdev **pibus)
+{
+       struct nvkm_subdev *ibus;
+       if (!(ibus = *pibus = kzalloc(sizeof(*ibus), GFP_KERNEL)))
+               return -ENOMEM;
+       nvkm_subdev_ctor(&gp10b_ibus, device, index, ibus);
+       return 0;
+}