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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>
hifive-unleashed-5.1
Alexandre Courbot 2017-03-29 18:31:19 +09:00 committed by Ben Skeggs
parent b9a995def6
commit 0af0327cd9
3 changed files with 61 additions and 0 deletions
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1
drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
View File

@ -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

1
drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild
View File

@ -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

59
drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gp10b.c 100644
View File

@ -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;
}