diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2017-05-19 23:59:35 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-06-16 14:04:53 +1000 |
| commit | 29c0ca7389ce8e259516d14397890bfe0ab462c8 (patch) | |
| tree | 70bd9db7abef9bd8aa454d8d08823669e190bb9e /drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c | |
| parent | 3607bfd398204ddb11f63c09b1cc608adf85f96c (diff) | |
drm/nouveau/disp/nv50-: fetch head/OR state at beginning of supervisor
This data will be used by essentially every part of the supervisor
handling process.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c index 5e2dbd5de511..6598252888ee 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c @@ -126,8 +126,27 @@ nv50_dac_power(NV50_DISP_MTHD_V1) return 0; } +static void +nv50_dac_state(struct nvkm_ior *dac, struct nvkm_ior_state *state) +{ + struct nvkm_device *device = dac->disp->engine.subdev.device; + const u32 coff = dac->id * 8 + (state == &dac->arm) * 4; + u32 ctrl = nvkm_rd32(device, 0x610b58 + coff); + + state->proto_evo = (ctrl & 0x00000f00) >> 8; + switch (state->proto_evo) { + case 0: state->proto = CRT; break; + default: + state->proto = UNKNOWN; + break; + } + + state->head = ctrl & 0x00000003; +} + static const struct nvkm_ior_func nv50_dac = { + .state = nv50_dac_state, }; int |