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From: "Xiang, Haihao" <haihao.xiang@intel.com>
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Date: Sat,  9 Oct 2010 15:32:30 +0800
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Subject: [Intel-gfx] [PATCH 10/10] no compression flag on Sandybridge
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diff --git a/src/gram.y b/src/gram.y
index e61e9db..a57e4e9 100644
--- a/src/gram.y
+++ b/src/gram.y
@@ -1612,8 +1612,10 @@ instoption_list:
 		    $$.header.compression_control |= BRW_COMPRESSION_2NDHALF;
 		    break;
 		  case COMPR:
-		    $$.header.compression_control |=
-		      BRW_COMPRESSION_COMPRESSED;
+		    if (gen_level < 6) {
+                        $$.header.compression_control |=
+                            BRW_COMPRESSION_COMPRESSED;
+		    }
 		    break;
 		  case SWITCH:
 		    $$.header.thread_control |= BRW_THREAD_SWITCH;