diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2017-05-19 23:59:35 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-06-16 14:04:58 +1000 |
| commit | 9648da5a71c25e17d14feb0d7dc9ee73319e8a24 (patch) | |
| tree | a1697de0d6eb9b8ad6e7b307545d11c73acc9c48 /drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c | |
| parent | 6c22ea3747fd36409ce4a1e1a0cbac40f93e1e71 (diff) | |
drm/nouveau/disp/dp: determine link bandwidth requirements from head state
Training/Untraining will be hooked up to the routing logic, which
doesn't allow us to pass in a data rate.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c index 8e7acc57d31d..d2bd6bb4a621 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c @@ -58,6 +58,19 @@ gf119_head_state(struct nvkm_head *head, struct nvkm_head_state *state) data = nvkm_rd32(device, 0x640420 + hoff); state->vblanks = (data & 0xffff0000) >> 16; state->hblanks = (data & 0x0000ffff); + state->hz = nvkm_rd32(device, 0x640450 + hoff); + + data = nvkm_rd32(device, 0x640404 + hoff); + switch ((data & 0x000003c0) >> 6) { + case 6: state->or.depth = 30; break; + case 5: state->or.depth = 24; break; + case 2: state->or.depth = 18; break; + case 0: state->or.depth = 18; break; /*XXX: "default" */ + default: + state->or.depth = 18; + WARN_ON(1); + break; + } } static const struct nvkm_head_func |