diff options
Diffstat (limited to 'src/shaders/h264/ildb/AVC_ILDB_SpawnChild.asm')
| -rw-r--r-- | src/shaders/h264/ildb/AVC_ILDB_SpawnChild.asm | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/shaders/h264/ildb/AVC_ILDB_SpawnChild.asm b/src/shaders/h264/ildb/AVC_ILDB_SpawnChild.asm new file mode 100644 index 0000000..0f6950c --- /dev/null +++ b/src/shaders/h264/ildb/AVC_ILDB_SpawnChild.asm @@ -0,0 +1,55 @@ +/*
+ * Copyright © <2010>, Intel Corporation.
+ *
+ * This program is licensed under the terms and conditions of the
+ * Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
+ * http://www.opensource.org/licenses/eclipse-1.0.php.
+ *
+ */
+//=============== Spawn a child thread for Luma or Chroma ===============
+
+ //----- Create child thread R0 header -----
+#if defined(_DEBUG)
+ mov (1) EntrySignature:w 0xAAAA:w
+#endif
+
+ //***** Set CT_R0Hdr fields that change for every thread
+
+ // Restore CT_R0Hdr.4:ud to r0.4:ud
+ mov (1) CT_R0Hdr.4:ud r0.4:ud
+
+ // R0.2: Interface Discriptor Ptr. Add a child offset for child kernel
+// add (1) CT_R0Hdr.2:ud r0.2:ud CHILD_OFFSET:w
+
+ // Assign a new Thread Count for this child
+ mov (1) CT_R0Hdr.6:ud ChildThreadsID:uw
+
+ //----- Prepare URB for launching a child thread -----
+ mov (16) m2.0:w ChildParam<16;16,1>:w
+
+ shr (1) MRF0.0:uw URBOffset:uw 1:w
+
+ add (1) ChildThreadsID:uw ChildThreadsID:uw 2:uw // Luma child=even, chroma child=odd
+
+ //--------------------------------------------------
+// #include "writeURB.asm"
+ send null:uw MRF0 null:ud URBWRITE URBWriteMsgDesc:ud // URB write
+
+ //--------------------------------------------------
+ // Set URB handle for child thread launching:
+ // URB handle Length (bit 15:10) - 0000 0000 0000 0000 yyyy yy00 0000 0000
+ // URB handle offset (bit 9:0) - 0000 0000 0000 0000 0000 00xx xxxx xxxx
+
+ or (1) CT_R0Hdr.4:ud URB_EntriesPerMB_2:w URBOffset:uw
+
+ // 2 URB entries:
+ // Entry 0 - CT_R0Hdr
+ // Entry 1 - input parameter to child kernel
+
+ //----- Spawn a child now -----
+ send (8) null:ud CT_R0Hdr null:ud TS TSMSGDSC
+// send (8) null:ud CT_Spawn_Reg null:ud 0x07100001
+
+
+ // Restore CT_R0Hdr.4:ud to r0.4:ud for next use
+// mov (1) CT_R0Hdr.4:ud r0.4:ud
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