i965/chv: Check that compute threads are above threshold

[mesa.git] / src / mesa / drivers / dri / i965 / brw_device_info.h

diff --git a/src/mesa/drivers/dri/i965/brw_device_info.h b/src/mesa/drivers/dri/i965/brw_device_info.h
index 73d682083a15f3b13d5cc28084fc11eec9931416..5c9517eda0f9de9477b115f026ff0d6619ffa16a 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_device_info.h
+++ b/src/mesa/drivers/dri/i965/brw_device_info.h
@@ -71,6 +71,11 @@ struct brw_device_info
    /**
     * Total number of slices present on the device whether or not they've been
     * fused off.
+    *
+    * XXX: CS thread counts are limited by the inability to do cross subslice
+    * communication. It is the effectively the number of logical threads which
+    * can be executed in a subslice. Fuse configurations may cause this number
+    * to change, so we program @max_cs_threads as the lower maximum.
     */
    unsigned num_slices;
    unsigned max_vs_threads;