diff options
| author |   Ben Skeggs <bskeggs@redhat.com> | 2017-01-16 10:36:00 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-02-17 17:38:12 +1000 |
| commit | ec5c6bda19408b78f8bc0e0592c7805e8550470f (patch) | |
| tree | 8dd6e35331c4537f00f5371bde16fe127a2fe6cb /drivers/gpu | |
| parent | drm/nouveau/fifo/gk104-: separate out engine status parsing (diff) | |
| download | linux-dev-ec5c6bda19408b78f8bc0e0592c7805e8550470f.tar.xz linux-dev-ec5c6bda19408b78f8bc0e0592c7805e8550470f.zip | |
drm/nouveau/fifo/gk104-: better detection of chid when parsing engine status
The previous commit simply changes the interface, but should result in
the same behaviour as previously. This commit has been split out from
it as it can result in a different channel being selected.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c index 6d12a2efee11..32c35397ae64 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c @@ -48,6 +48,7 @@ static void gk104_fifo_engine_status(struct gk104_fifo *fifo, int engn, struct gk104_fifo_engine_status *status) { + struct nvkm_engine *engine = fifo->engine[engn].engine; struct nvkm_subdev *subdev = &fifo->base.engine.subdev; struct nvkm_device *device = subdev->device; u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x08)); @@ -61,7 +62,24 @@ gk104_fifo_engine_status(struct gk104_fifo *fifo, int engn, status->load = !!(stat & 0x00002000); status->prev.tsg = !!(stat & 0x00001000); status->prev.id = (stat & 0x00000fff); - status->chan = status->load ? &status->next : &status->prev; + status->chan = NULL; + + if (status->busy && status->chsw) { + if (status->load && status->save) { + if (engine && nvkm_engine_chsw_load(engine)) + status->chan = &status->next; + else + status->chan = &status->prev; + } else + if (status->load) { + status->chan = &status->next; + } else { + status->chan = &status->prev; + } + } else + if (status->load) { + status->chan = &status->prev; + } nvkm_debug(subdev, "engine %02d: busy %d faulted %d chsw %d " "save %d load %d %sid %d%s-> %sid %d%s\n", |