diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgv100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgv100.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgv100.c new file mode 100644 index 000000000..fdb624ac6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgv100.c @@ -0,0 +1,79 @@ +/* + * Copyright 2018 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. + */ +#include "channv50.h" + +#include <core/ramht.h> +#include <subdev/timer.h> + +static int +gv100_disp_dmac_idle(struct nv50_disp_chan *chan) +{ + struct nvkm_device *device = chan->disp->base.engine.subdev.device; + const u32 soff = (chan->chid.ctrl - 1) * 0x04; + nvkm_msec(device, 2000, + u32 stat = nvkm_rd32(device, 0x610664 + soff); + if ((stat & 0x000f0000) == 0x00040000) + return 0; + ); + return -EBUSY; +} + +int +gv100_disp_dmac_bind(struct nv50_disp_chan *chan, + struct nvkm_object *object, u32 handle) +{ + return nvkm_ramht_insert(chan->disp->ramht, object, + chan->chid.user, -9, handle, + chan->chid.user << 25 | 0x00000040); +} + +void +gv100_disp_dmac_fini(struct nv50_disp_chan *chan) +{ + struct nvkm_device *device = chan->disp->base.engine.subdev.device; + const u32 uoff = (chan->chid.ctrl - 1) * 0x1000; + const u32 coff = chan->chid.ctrl * 0x04; + nvkm_mask(device, 0x6104e0 + coff, 0x00000010, 0x00000000); + gv100_disp_dmac_idle(chan); + nvkm_mask(device, 0x6104e0 + coff, 0x00000002, 0x00000000); + chan->suspend_put = nvkm_rd32(device, 0x690000 + uoff); +} + +int +gv100_disp_dmac_init(struct nv50_disp_chan *chan) +{ + struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev; + struct nvkm_device *device = subdev->device; + const u32 uoff = (chan->chid.ctrl - 1) * 0x1000; + const u32 poff = chan->chid.ctrl * 0x10; + const u32 coff = chan->chid.ctrl * 0x04; + + nvkm_wr32(device, 0x610b24 + poff, lower_32_bits(chan->push)); + nvkm_wr32(device, 0x610b20 + poff, upper_32_bits(chan->push)); + nvkm_wr32(device, 0x610b28 + poff, 0x00000001); + nvkm_wr32(device, 0x610b2c + poff, 0x00000040); + + nvkm_mask(device, 0x6104e0 + coff, 0x00000010, 0x00000010); + nvkm_wr32(device, 0x690000 + uoff, chan->suspend_put); + nvkm_wr32(device, 0x6104e0 + coff, 0x00000013); + return gv100_disp_dmac_idle(chan); +} |