gpu: nvgpu: Remove understand script

This script has been copied over to the core-private directory.

Change-Id: Ied64f0d1722d61e207147508d28859b5c693a743
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2131030
Reviewed-by: Nicolas Benech <nbenech@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

arch/understand_deps_analyze.py

@@ -1,58 +0,0 @@
-#!/usr/bin/python3
-#
-# Python script to parse dependency export CSV from Understand. It detects
-# these common architectural problems:
-# * Common code depends on hardware headers
-# * HAL unit depends directly on another HAL unit. The dependency should
-#   always be via HAL interface.
-# * Two units have a circular dependency.
-#
-# Usage:
-#
-# understand_deps_analyze.py <deps_export.csv
-#
-# Notice that the CSV export has to be made by:
-# * Create architecture XML with nvgpu_arch.py (command understand)
-# * Create nvgpu project in Understand and add nvgpu code, both common and qnx
-#   directories
-# * Import architecture XML to Understand
-# * View Graphs->Dependency graphs->By nvgpu (nvgpu probably comes from the
-#   name of the architecture .xml file
-# * Create arch dependendency report:
-#   * Reports->Dependency->Architecture Dependencies->Export CSV
-#   * Choose nvgpu as "Select an architecture to analyze"
-
-import sys
-import re
-
-def checkMatch(fromUnit, toUnit):
-    ret = None
-
-    if (not fromUnit.startswith("common/hal") and toUnit.startswith("gpu_hw")):
-        ret = "Common depends on HW"
-
-    if (fromUnit.startswith("common/hal") and toUnit.startswith("common/hal")):
-        ret = "HAL depends on HAL"
-
-    # We have still too many of these problems, and it's not clear if we want
-    # to fix them all. Comment out for now.
-    # if (fromUnit.startswith("interface") and not toUnit.startswith("interface")):
-    #     ret = "Interface depends on non-interface"
-
-    return ret
-
-stream = sys.stdin
-deps = set()
-
-depRe = re.compile("(.+),(.+),\d+,\d+,\d+,\d+,\d+")
-for line in stream.readlines():
-    match = depRe.match(line)
-    if match:
-        ret = checkMatch(match.group(1), match.group(2))
-        if (ret):
-            print("%s,%s,%s" % (ret, match.group(1), match.group(2)))
-
-        if "%s,%s" % (match.group(2), match.group(1)) in deps:
-            print("Circular dependency,%s,%s" % (match.group(1), match.group(2)))
-
-        deps.add("%s,%s" % (match.group(1), match.group(2)))