drm/nouveau: Rework tile region handling.

The point is to share more code between the PFB/PGRAPH tile region
hooks, and give the hardware specific functions a chance to allocate
per-region resources.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 7 insertions, 10 deletions

diff --git a/drivers/gpu/drm/nouveau/nv10_graph.c b/drivers/gpu/drm/nouveau/nv10_graph.c
index 3fbb49dfc09c..1cd141edca04 100644
--- a/drivers/gpu/drm/nouveau/nv10_graph.c
+++ b/drivers/gpu/drm/nouveau/nv10_graph.c
@@ -899,17 +899,14 @@ void nv10_graph_destroy_context(struct nouveau_channel *chan)
 }
 
 void
-nv10_graph_set_region_tiling(struct drm_device *dev, int i, uint32_t addr,
-                             uint32_t size, uint32_t pitch)
+nv10_graph_set_tile_region(struct drm_device *dev, int i)
 {
-        uint32_t limit = max(1u, addr + size) - 1;
-
-        if (pitch)
-                addr |= 1 << 31;
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+        struct nouveau_tile_reg *tile = &dev_priv->tile.reg[i];
 
-        nv_wr32(dev, NV10_PGRAPH_TLIMIT(i), limit);
-        nv_wr32(dev, NV10_PGRAPH_TSIZE(i), pitch);
-        nv_wr32(dev, NV10_PGRAPH_TILE(i), addr);
+        nv_wr32(dev, NV10_PGRAPH_TLIMIT(i), tile->limit);
+        nv_wr32(dev, NV10_PGRAPH_TSIZE(i), tile->pitch);
+        nv_wr32(dev, NV10_PGRAPH_TILE(i), tile->addr);
 }
 
 int nv10_graph_init(struct drm_device *dev)
@@ -949,7 +946,7 @@ int nv10_graph_init(struct drm_device *dev)
 
         /* Turn all the tiling regions off. */
         for (i = 0; i < NV10_PFB_TILE__SIZE; i++)
-                nv10_graph_set_region_tiling(dev, i, 0, 0, 0);
+                nv10_graph_set_tile_region(dev, i);
 
         nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(0), 0x00000000);
         nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(1), 0x00000000);