i965: Cite the Ivybridge PRM for 3DSTATE_URB_* programming.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.cpp b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
index acd62371414984df07c18a72e63cbf3c47f94f25..199866ec24da0cceabd7da3b9936516b6a21205d 100644 (file)
--- a/src/mesa/drivers/dri/i965/gen7_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
@@ -40,8 +40,9 @@
  * 3DSTATE_URB_DS
  * 3DSTATE_URB_GS
  *
- * If the 3DSTATE_URB_VS is emitted, than the others must be also. From the
- * BSpec, Volume 2a "3D Pipeline Overview", Section 1.7.1 3DSTATE_URB_VS:
+ * If the 3DSTATE_URB_VS is emitted, than the others must be also.
+ * From the Ivybridge PRM, Volume 2 Part 1, section 1.7.1 3DSTATE_URB_VS:
+ *
  *     3DSTATE_URB_HS, 3DSTATE_URB_DS, and 3DSTATE_URB_GS must also be
  *     programmed in order for the programming of this state to be
  *     valid.