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| author | Ben Skeggs <bskeggs@redhat.com> | 2022-06-01 20:48:04 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2022-11-09 10:45:10 +1000 |
| commit | 0ceceaa9ae8294b0da91d731027b5c4b1bb4187e (patch) | |
| tree | 4e4619712b84dea60f8f8add3ba4944cd9a959c0 /drivers/gpu/drm/nouveau | |
| parent | 4500031f86691a44ecbbebfc77872c60c5a1b8e6 (diff) | |
| download | linux-stable-0ceceaa9ae8294b0da91d731027b5c4b1bb4187e.tar.gz linux-stable-0ceceaa9ae8294b0da91d731027b5c4b1bb4187e.tar.bz2 linux-stable-0ceceaa9ae8294b0da91d731027b5c4b1bb4187e.zip | |
drm/nouveau/fifo: expose function to read engine ctxsw status
Needed to support Ampere differences in gr/gf100-:
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c | 2 |
3 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h index 4825403a2688..221abd6c4310 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h @@ -75,6 +75,7 @@ struct nvkm_fifo { void nvkm_fifo_fault(struct nvkm_fifo *, struct nvkm_fault_data *); void nvkm_fifo_pause(struct nvkm_fifo *, unsigned long *); void nvkm_fifo_start(struct nvkm_fifo *, unsigned long *); +bool nvkm_fifo_ctxsw_in_progress(struct nvkm_engine *); int nv04_fifo_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fifo **); int nv10_fifo_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fifo **); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c index abce1ecfd4d4..5ea9a2ff0663 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c @@ -35,6 +35,22 @@ #include <nvif/cl0080.h> #include <nvif/unpack.h> +bool +nvkm_fifo_ctxsw_in_progress(struct nvkm_engine *engine) +{ + struct nvkm_runl *runl; + struct nvkm_engn *engn; + + nvkm_runl_foreach(runl, engine->subdev.device->fifo) { + nvkm_runl_foreach_engn(engn, runl) { + if (engn->engine == engine) + return engn->func->chsw ? engn->func->chsw(engn) : false; + } + } + + return false; +} + void nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags) { diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c index 1a5ec366b672..acc7a74f9cc3 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c @@ -1003,7 +1003,7 @@ gf100_gr_wait_idle(struct gf100_gr *gr) nvkm_rd32(device, 0x400700); gr_enabled = nvkm_rd32(device, 0x200) & 0x1000; - ctxsw_active = nvkm_rd32(device, 0x2640) & 0x8000; + ctxsw_active = nvkm_fifo_ctxsw_in_progress(&gr->base.engine); gr_busy = nvkm_rd32(device, 0x40060c) & 0x1; if (!gr_enabled || (!gr_busy && !ctxsw_active)) |