aubinator: Add a new tool called Aubinator to the src/intel/tools folder.

The Aubinator tool is designed to help the driver developers in debugging
the driver functionality by decoding the data in the .aub files.
Primary Authors of this tool are Damien Lespiau <damien.lespiau at intel.com>
and Kristian Høgsberg Kristensen <krh at bitplanet.net>.

v2: Review comments are incorporated by Sirisha Gandikota as below:
1) Make Makefile.am more crisp, reuse intel_aub.h from libdrm (per Emil)
2) Aubinator will use platform name instead of GEN number (per Matt)
3) Disassmebler gets created based on pciid rather then GEN number (per Matt)
4) Other formatting comments (per Ken, Matt and Emil)

Signed-off-by: Sirisha Gandikota <Sirisha.Gandikota@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Ben Widawsky <ben@bwidawsk.net>

1 files changed, 111 insertions, 0 deletions

diff --git a/src/intel/tools/disasm.c b/src/intel/tools/disasm.c
new file mode 100644
index 0000000..cbee2fc
--- /dev/null
+++ b/src/intel/tools/disasm.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2014 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include "brw_context.h"
+#include "brw_inst.h"
+#include "brw_eu.h"
+
+#include "gen_disasm.h"
+
+uint64_t INTEL_DEBUG;
+
+struct gen_disasm {
+    struct brw_device_info devinfo;
+};
+
+void
+gen_disasm_disassemble(struct gen_disasm *disasm, void *assembly, int start, int end, FILE *out)
+{
+   struct brw_device_info *devinfo = &disasm->devinfo;
+   bool dump_hex = false;
+
+   for (int offset = start; offset < end;) {
+      brw_inst *insn = assembly + offset;
+      brw_inst uncompacted;
+      bool compacted = brw_inst_cmpt_control(devinfo, insn);
+      if (0)
+         fprintf(out, "0x%08x: ", offset);
+
+      if (compacted) {
+         brw_compact_inst *compacted = (void *)insn;
+         if (dump_hex) {
+            fprintf(out, "0x%08x 0x%08x                       ",
+                   ((uint32_t *)insn)[1],
+                   ((uint32_t *)insn)[0]);
+         }
+
+         brw_uncompact_instruction(devinfo, &uncompacted, compacted);
+         insn = &uncompacted;
+         offset += 8;
+      } else {
+         if (dump_hex) {
+            fprintf(out, "0x%08x 0x%08x 0x%08x 0x%08x ",
+                   ((uint32_t *)insn)[3],
+                   ((uint32_t *)insn)[2],
+                   ((uint32_t *)insn)[1],
+                   ((uint32_t *)insn)[0]);
+         }
+         offset += 16;
+      }
+
+      brw_disassemble_inst(out, devinfo, insn, compacted);
+
+      /* Simplistic, but efficient way to terminate disasm */
+      if (brw_inst_opcode(devinfo, insn) == BRW_OPCODE_SEND ||
+         brw_inst_opcode(devinfo, insn) == BRW_OPCODE_SENDC)
+         if (brw_inst_eot(devinfo, insn))
+            break;
+         if (brw_inst_opcode(devinfo, insn) == 0)
+            break;
+
+   }
+}
+
+struct gen_disasm *
+gen_disasm_create(int pciid)
+{
+   struct gen_disasm *gd;
+   const struct brw_device_info *dev_info = NULL;
+
+   gd = malloc(sizeof *gd);
+   if (gd == NULL)
+      return NULL;
+
+   dev_info = brw_get_device_info(pciid);
+
+   gd->devinfo.gen = dev_info->gen;
+   gd->devinfo.is_cherryview = dev_info->is_cherryview;
+   gd->devinfo.is_g4x = dev_info->is_g4x;
+
+   brw_init_compaction_tables(&gd->devinfo);
+
+   return gd;
+}
+
+void
+gen_disasm_destroy(struct gen_disasm *disasm)
+{
+   free(disasm);
+}