drm/nve0/fifo: runlist intr

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-23 23:12:37 +10:00
parent c074bdbc92
commit 138b873fdf

View File

@ -60,6 +60,7 @@ static const struct {
struct nve0_fifo_engn {
struct nouveau_gpuobj *runlist[2];
int cur_runlist;
wait_queue_head_t wait;
};
struct nve0_fifo_priv {
@ -646,6 +647,18 @@ nve0_fifo_intr_pbdma(struct nve0_fifo_priv *priv, int unit)
nv_wr32(priv, 0x040108 + (unit * 0x2000), stat);
}
static void
nve0_fifo_intr_runlist(struct nve0_fifo_priv *priv)
{
u32 mask = nv_rd32(priv, 0x002a00);
while (mask) {
u32 engn = __ffs(mask);
wake_up(&priv->engine[engn].wait);
nv_wr32(priv, 0x002a00, 1 << engn);
mask &= ~(1 << engn);
}
}
static void
nve0_fifo_intr_engine(struct nve0_fifo_priv *priv)
{
@ -731,14 +744,7 @@ nve0_fifo_intr(struct nouveau_subdev *subdev)
}
if (stat & 0x40000000) {
u32 mask = nv_mask(priv, 0x002a00, 0x00000000, 0x00000000);
while (mask) {
u32 engn = ffs(mask) - 1;
/* runlist event, not currently used */
mask &= ~(1 << engn);
}
nve0_fifo_intr_runlist(priv);
stat &= ~0x40000000;
}
@ -808,9 +814,8 @@ nve0_fifo_init(struct nouveau_object *object)
nv_wr32(priv, 0x002254, 0x10000000 | priv->user.bar.offset >> 12);
nv_wr32(priv, 0x002a00, 0xffffffff);
nv_wr32(priv, 0x002100, 0xffffffff);
nv_wr32(priv, 0x002140, 0x3fffffff);
nv_wr32(priv, 0x002140, 0x7fffffff);
return 0;
}
@ -856,6 +861,8 @@ nve0_fifo_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
0, &priv->engine[i].runlist[1]);
if (ret)
return ret;
init_waitqueue_head(&priv->engine[i].wait);
}
ret = nouveau_gpuobj_new(nv_object(priv), NULL, impl->channels * 0x200,