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authorFrancisco Jerez <currojerez@riseup.net>2010-10-10 06:07:32 +0200
committerBen Skeggs <bskeggs@redhat.com>2010-11-18 14:38:31 +1000
commit699ddfd98061b725c52fd34ff1c4346e5b4824d4 (patch)
treec30678adaba718c40eae3ad7d3802d7a06546160 /drivers/gpu
parentf13b32630dda7e583a84a8c535880cff7e4a9bdd (diff)
drm/nv10: Balance RTs expected to be accessed simultaneously by the 3d engine.
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bo.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index f55dd9145b7..c41e1c200ef 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -143,6 +143,7 @@ nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
nvbo->no_vm = no_vm;
nvbo->tile_mode = tile_mode;
nvbo->tile_flags = tile_flags;
+ nvbo->bo.bdev = &dev_priv->ttm.bdev;
nouveau_bo_fixup_align(dev, tile_mode, nouveau_bo_tile_layout(nvbo),
&align, &size);
@@ -177,6 +178,31 @@ set_placement_list(uint32_t *pl, unsigned *n, uint32_t type, uint32_t flags)
pl[(*n)++] = TTM_PL_FLAG_SYSTEM | flags;
}
+static void
+set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
+{
+ struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
+
+ if (dev_priv->card_type == NV_10 &&
+ nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM)) {
+ /*
+ * Make sure that the color and depth buffers are handled
+ * by independent memory controller units. Up to a 9x
+ * speed up when alpha-blending and depth-test are enabled
+ * at the same time.
+ */
+ int vram_pages = dev_priv->vram_size >> PAGE_SHIFT;
+
+ if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) {
+ nvbo->placement.fpfn = vram_pages / 2;
+ nvbo->placement.lpfn = ~0;
+ } else {
+ nvbo->placement.fpfn = 0;
+ nvbo->placement.lpfn = vram_pages / 2;
+ }
+ }
+}
+
void
nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
{
@@ -191,6 +217,8 @@ nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
pl->busy_placement = nvbo->busy_placements;
set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
type | busy, flags);
+
+ set_placement_range(nvbo, type);
}
int