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drm/nouveau: add instmem flush() hook

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This removes the previous prepare_access() and finish_access() hooks, and
replaces it with a much simpler flush() hook.

All the chipset-specific code before nv50 has its use removed completely,
as it's not required there at all.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
2010-07-08 11:29:10 +10:00
parent 2107cce305
commit f56cb86f9a
15 changed files with 39 additions and 152 deletions
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8
drivers/gpu/drm/nouveau/nv50_graph.c
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@ -226,7 +226,6 @@ nv50_graph_create_context(struct nouveau_channel *chan)
obj = chan->ramin_grctx->gpuobj;
hdr = IS_G80 ? 0x200 : 0x20;
dev_priv->engine.instmem.prepare_access(dev, true);
nv_wo32(dev, ramin, (hdr + 0x00)/4, 0x00190002);
nv_wo32(dev, ramin, (hdr + 0x04)/4, chan->ramin_grctx->instance +
pgraph->grctx_size - 1);
@ -234,9 +233,7 @@ nv50_graph_create_context(struct nouveau_channel *chan)
nv_wo32(dev, ramin, (hdr + 0x0c)/4, 0);
nv_wo32(dev, ramin, (hdr + 0x10)/4, 0);
nv_wo32(dev, ramin, (hdr + 0x14)/4, 0x00010000);
dev_priv->engine.instmem.finish_access(dev);
dev_priv->engine.instmem.prepare_access(dev, true);
if (!pgraph->ctxprog) {
struct nouveau_grctx ctx = {};
ctx.dev = chan->dev;
@ -247,8 +244,8 @@ nv50_graph_create_context(struct nouveau_channel *chan)
nouveau_grctx_vals_load(dev, obj);
}
nv_wo32(dev, obj, 0x00000/4, chan->ramin->instance >> 12);
dev_priv->engine.instmem.finish_access(dev);
dev_priv->engine.instmem.flush(dev);
return 0;
}
@ -264,10 +261,9 @@ nv50_graph_destroy_context(struct nouveau_channel *chan)
if (!chan->ramin || !chan->ramin->gpuobj)
return;
dev_priv->engine.instmem.prepare_access(dev, true);
for (i = hdr; i < hdr + 24; i += 4)
nv_wo32(dev, chan->ramin->gpuobj, i/4, 0);
dev_priv->engine.instmem.finish_access(dev);
dev_priv->engine.instmem.flush(dev);
nouveau_gpuobj_ref_del(dev, &chan->ramin_grctx);
}