29 Aug
2008
29 Aug
'08
12:40 p.m.
See patch
--
coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br.
Tel.: +49 761 7668825 • Fax: +49 761 7664613
Email: info@coresystems.de • http://www.coresystems.de/
Registergericht: Amtsgericht Freiburg • HRB 7656
Geschäftsführer: Stefan Reinauer • Ust-IdNr.: DE245674866
This patch creates static.dot visualizing the coreboot device tree (v2)
create pngs with
$ fdp -o static.png -Tpng static.dot
or
$ dot -o static.png -Tpng static.dot
edge colors:
blue: parent->self relation
red: self->child relation
green: self->sibling relation
pink: self->next relation
TODO/ideas:
node colors according to device type?
put devices belonging to the same parent on the same level
add an agenda
I don't think this should be committed yet, it's just a rough try I created
to debug a problem with the device tree code / resource allocator.
Signed-off-by: Stefan Reinauer stepan@coresystems.de
Index: util/newconfig/config.g
===================================================================
--- util/newconfig/config.g (revision 534)
+++ util/newconfig/config.g (working copy)
@@ -93,6 +93,7 @@
dict = 4
statement = 5
dump = 6
+ gengraph = 7
def __init__(self, *level):
self.__level = level
@@ -682,6 +683,15 @@
else:
name = "%s %s" % (name, self.path)
return name
+
+ def graph_name(self):
+ name = ""
+ name = "%s_%d" % (self.type_name, self.instance)
+# if (self.chip_or_device == 'chip'):
+ name = "%s %s %s" % (name, self.part, self.parent.type_name)
+# else:
+# name = "%s %s" % (name, self.path)
+ return name
def dumpme(self, lvl):
"""Dump information about this part for debugging"""
@@ -976,6 +986,56 @@
setdict(self.uses_options, name, o)
exportoption(o, self.image.exported_options)
+ def gengraph(self, file, pass_num):
+ """Generate static device tree graph for this part. Two passes
+ are used - the first generates type information, and the second
+ generates instance information"""
+ if (pass_num == 0):
+ if (self.chip_or_device == 'chip'):
+ return;
+ else:
+ if (self.instance):
+ file.write("%s[shape=box, label="%s"];\n" \
+ % (self.instance_name, self.graph_name()))
+ else:
+ file.write("node [shape=circle] dev_root;\n")
+ return
+ # This is pass the second, which is pass number 1
+ # this is really just a case statement ...
+
+ if (self.chip_or_device == 'chip'):
+ if (self.instance == 0):
+ self.instance_name = "dev_root"
+ file.write("%s -> %s ;\n" % (self.instance_name, self.firstchilddevice().instance_name))
+ return
+
+ # Don't print duplicate devices, just print their children
+ if (self.dup):
+ return
+
+ file.write("%s -> %s [color="#0000ff"]\n" % \
+ (self.firstparentdevice().instance_name, self.instance_name))
+ links = 0
+ bus = self
+ while(bus and (bus.path == self.path)):
+ child = bus.firstchilddevice()
+ if (child or (bus != self) or (bus.next_sibling and (bus.next_sibling.path == self.path))):
+ if (child):
+ file.write("%s -> %s [color="#ff0000"]\n" % (self.instance_name, child.instance_name))
+ links = links + 1
+ if (1):
+ bus = bus.next_sibling
+ else:
+ bus = 0
+ sibling = self.firstsiblingdevice();
+ if (sibling):
+ file.write("%s -> %s [color="#00ff00"]\n" % (self.instance_name, sibling.instance_name))
+ chip = self.firstparentchip()
+ if (self.next_device):
+ file.write("%s -> %s [color="#ff00ff"]\n" % (self.instance_name, self.next_device.instance_name))
+ return
+
+
# -----------------------------------------------------------------------------
# statements
# -----------------------------------------------------------------------------
@@ -2254,7 +2314,9 @@
file.write("#include <device/pci.h>\n")
for path in image.getconfigincludes().values():
file.write("#include "%s"\n" % path)
+ file.write("\n/* pass 0 */\n")
gencode(image.getroot(), file, 0)
+ file.write("\n/* pass 1 */\n")
gencode(image.getroot(), file, 1)
file.close()
@@ -2278,6 +2340,36 @@
kid = kid.next_sibling
debug.info(debug.gencode, "DONE GENCODE")
+def writegraph(image):
+ filename = os.path.join(img_dir, "static.dot")
+ print "Creating", filename
+ file = safe_open(filename, 'w+')
+ file.write("digraph devicetree {\n")
+ gengraph(image.getroot(), file, 0)
+ gengraph(image.getroot(), file, 1)
+ file.write("}\n")
+ file.close()
+
+def gengraph(part, file, pass_num):
+ debug.info(debug.gengraph, "GENGRAPH ME is")
+ part.gengraph(file, pass_num)
+ # dump the siblings -- actually are there any? not sure
+ debug.info(debug.gengraph, "GENGRAPH SIBLINGS are")
+ kid = part.next_sibling
+ while (kid):
+ kid.gengraph(file, pass_num)
+ kid = kid.next_sibling
+ # now dump the children
+ debug.info(debug.gengraph, "GENGRAPH KIDS are")
+ if (part.children):
+ gengraph(part.children, file, pass_num)
+ kid = part.next_sibling
+ while (kid):
+ if (kid.children):
+ gengraph(kid.children, file, pass_num)
+ kid = kid.next_sibling
+ debug.info(debug.gengraph, "DONE GENGRAPH")
+
def verifyparse():
"""Add any run-time checks to verify that parsing the configuration
was successful"""
@@ -2343,6 +2435,7 @@
writeinitincludes(image)
writeimagemakefile(image)
writeldoptions(image)
+ writegraph(image)
writemakefilesettings(target_dir)
writemakefile(target_dir)