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drm/nouveau/fifo: support channel count query

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
2018-05-08 20:39:46 +10:00
parent 6eb01aa898
commit eb47db4f3b
15 changed files with 64 additions and 24 deletions
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14
drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
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@@ -30,6 +30,7 @@
#include <subdev/mc.h>
#include <nvif/event.h>
#include <nvif/cl0080.h>
#include <nvif/unpack.h>
void
@@ -270,6 +271,18 @@ nvkm_fifo_fini(struct nvkm_engine *engine, bool suspend)
return 0;
}
static int
nvkm_fifo_info(struct nvkm_engine *engine, u64 mthd, u64 *data)
{
struct nvkm_fifo *fifo = nvkm_fifo(engine);
switch (mthd) {
case NV_DEVICE_FIFO_CHANNELS: *data = fifo->nr; return 0;
default:
break;
}
return -ENOSYS;
}
static int
nvkm_fifo_oneinit(struct nvkm_engine *engine)
{
@@ -311,6 +324,7 @@ nvkm_fifo = {
.dtor = nvkm_fifo_dtor,
.preinit = nvkm_fifo_preinit,
.oneinit = nvkm_fifo_oneinit,
.info = nvkm_fifo_info,
.init = nvkm_fifo_init,
.fini = nvkm_fifo_fini,
.intr = nvkm_fifo_intr,