redonkable/alistair23-linux
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drm/nve0/fifo: allow channels to be marked as unrunnable

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-23 23:24:25 +10:00
parent 0a7760e0b3
commit 87032e11d9
1 changed files with 24 additions and 13 deletions
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37
drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
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@ -82,6 +82,11 @@ struct nve0_fifo_base {
struct nve0_fifo_chan {
struct nouveau_fifo_chan base;
u32 engine;
enum {
STOPPED,
RUNNING,
KILLED
} state;
};
/*******************************************************************************
@ -94,7 +99,6 @@ nve0_fifo_runlist_update(struct nve0_fifo_priv *priv, u32 engine)
struct nouveau_bar *bar = nouveau_bar(priv);
struct nve0_fifo_engn *engn = &priv->engine[engine];
struct nouveau_gpuobj *cur;
u32 match = (engine << 16) | 0x00000001;
int i, p;
mutex_lock(&nv_subdev(priv)->mutex);
@ -102,17 +106,18 @@ nve0_fifo_runlist_update(struct nve0_fifo_priv *priv, u32 engine)
engn->cur_runlist = !engn->cur_runlist;
for (i = 0, p = 0; i < priv->base.max; i++) {
u32 ctrl = nv_rd32(priv, 0x800004 + (i * 8)) & 0x001f0001;
if (ctrl != match)
continue;
nv_wo32(cur, p + 0, i);
nv_wo32(cur, p + 4, 0x00000000);
p += 8;
struct nve0_fifo_chan *chan = (void *)priv->base.channel[i];
if (chan && chan->state == RUNNING && chan->engine == engine) {
nv_wo32(cur, p + 0, i);
nv_wo32(cur, p + 4, 0x00000000);
p += 8;
}
}
bar->flush(bar);
nv_wr32(priv, 0x002270, cur->addr >> 12);
nv_wr32(priv, 0x002274, (engine << 20) | (p >> 3));
if (!nv_wait(priv, 0x002284 + (engine * 8), 0x00100000, 0x00000000))
nv_error(priv, "runlist %d update timeout\n", engine);
mutex_unlock(&nv_subdev(priv)->mutex);
@ -280,9 +285,13 @@ nve0_fifo_chan_init(struct nouveau_object *object)
nv_mask(priv, 0x800004 + (chid * 8), 0x000f0000, chan->engine << 16);
nv_wr32(priv, 0x800000 + (chid * 8), 0x80000000 | base->addr >> 12);
nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
nve0_fifo_runlist_update(priv, chan->engine);
nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
if (chan->state == STOPPED && (chan->state = RUNNING) == RUNNING) {
nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
nve0_fifo_runlist_update(priv, chan->engine);
nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
}
return 0;
}
@ -293,10 +302,12 @@ nve0_fifo_chan_fini(struct nouveau_object *object, bool suspend)
struct nve0_fifo_chan *chan = (void *)object;
u32 chid = chan->base.chid;
nv_mask(priv, 0x800004 + (chid * 8), 0x00000800, 0x00000800);
nve0_fifo_runlist_update(priv, chan->engine);
nv_wr32(priv, 0x800000 + (chid * 8), 0x00000000);
if (chan->state == RUNNING && (chan->state = STOPPED) == STOPPED) {
nv_mask(priv, 0x800004 + (chid * 8), 0x00000800, 0x00000800);
nve0_fifo_runlist_update(priv, chan->engine);
}
nv_wr32(priv, 0x800000 + (chid * 8), 0x00000000);
return nouveau_fifo_channel_fini(&chan->base, suspend);
}