lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drm/nv40: implement ctxprog/state generation

Browse Source 
The context programs are *very* simple compared to the ones used by
the binary driver.  There's notes in nv40_grctx.c explaining most of
the things we don't implement.  If we discover if/why any of it is
required further down the track, we'll handle it then.

The PGRAPH state generated for each chipset should match what NVIDIA
do almost exactly (there's a couple of exceptions).  If someone has
a lot of time on their hands, they could figure out the mapping of
object/method to PGRAPH register and demagic the initial state a little,
it's not terribly important however.

At time of commit, confirmed to be working at least well enough for
accelerated X (and where tested, for 3D apps) on NV40, NV43, NV44, NV46,
NV49, NV4A, NV4B and NV4E.

A module option has been added to force the use of external firmware
blobs if it becomes required.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
2009-12-15 22:02:47 +10:00
parent 15bee69ee1
commit 054b93e444
8 changed files with 1031 additions and 182 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/nouveau/nv50_graph.c
View File

@@ -107,9 +107,13 @@ nv50_graph_init_regs(struct drm_device *dev)
static int
nv50_graph_init_ctxctl(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
NV_DEBUG(dev, "\n");
nv40_grctx_init(dev);
nouveau_grctx_prog_load(dev);
if (!dev_priv->engine.graph.ctxprog)
dev_priv->engine.graph.accel_blocked = true;
nv_wr32(dev, 0x400320, 4);
nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0);
@@ -140,7 +144,7 @@ void
nv50_graph_takedown(struct drm_device *dev)
{
NV_DEBUG(dev, "\n");
nv40_grctx_fini(dev);
nouveau_grctx_fini(dev);
}
void
@@ -207,7 +211,7 @@ nv50_graph_create_context(struct nouveau_channel *chan)
dev_priv->engine.instmem.finish_access(dev);
dev_priv->engine.instmem.prepare_access(dev, true);
nv40_grctx_vals_load(dev, ctx);
nouveau_grctx_vals_load(dev, ctx);
nv_wo32(dev, ctx, 0x00000/4, chan->ramin->instance >> 12);
if ((dev_priv->chipset & 0xf0) == 0xa0)
nv_wo32(dev, ctx, 0x00004/4, 0x00000000);