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authorEric Anholt <eric@anholt.net>2009-11-10 13:57:29 -0800
committerEric Anholt <eric@anholt.net>2009-11-10 16:00:30 -0800
commiteb6a1f8a00596156cd7164838ef9e9a5b39e7254 (patch)
treecfd240f8109595e3efbda5b068ee6b0530e68762
parent520b6abdecdaba856e5ca04938e18eb83b33dfaa (diff)
i965: Add a note explaining the data cache domain.
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_surface_state.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 0bf735c0f2..e2f0a383e7 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -358,7 +358,10 @@ brw_create_constant_surface( struct brw_context *brw,
NULL, NULL);
if (key->bo) {
- /* Emit relocation to surface contents */
+ /* Emit relocation to surface contents. Section 5.1.1 of the gen4
+ * bspec ("Data Cache") says that the data cache does not exist as
+ * a separate cache and is just the sampler cache.
+ */
dri_bo_emit_reloc(bo,
I915_GEM_DOMAIN_SAMPLER, 0,
0,