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authorEric Anholt <[email protected]>2017-10-24 19:10:37 -0700
committerEric Anholt <[email protected]>2017-10-30 13:31:16 -0700
commitd0f7053369920cb4a1d0982b7869ff0577fef961 (patch)
treea9b6e5e97623fe81d4759a5c06e8cb79769edcac
parent40280b0abe46d43ffe669c8094e94c7ac70ab92a (diff)
broadcom/xml: Fix address packing for address with >= 8 alignment bits.
We were handing the intra-byte padding fine, but with a 24-bit address (bottom 8 bits implied 0) we would end up off by 8 bytes in our shift, impacting vc5's load/store general packets (all other packets we have had <8 bits of padding).
-rw-r--r--src/broadcom/cle/gen_pack_header.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/broadcom/cle/gen_pack_header.py b/src/broadcom/cle/gen_pack_header.py
index d458c2b1c40..78ad9ad31a4 100644
--- a/src/broadcom/cle/gen_pack_header.py
+++ b/src/broadcom/cle/gen_pack_header.py
@@ -279,11 +279,13 @@ class Group(object):
field_byte_start = (field.start // 8) * 8
start -= field_byte_start
end -= field_byte_start
+ extra_shift = 0
if field.type == "mbo":
s = "__gen_mbo(%d, %d)" % \
(start, end)
elif field.type == "address":
+ extra_shift = (31 - (end - start)) // 8 * 8
s = "__gen_address_offset(&values->%s)" % byte.address.name
elif field.type == "uint":
s = "__gen_uint(values->%s, %d, %d)" % \
@@ -317,8 +319,9 @@ class Group(object):
s = None
if not s == None:
- if byte_start - field_byte_start != 0:
- s = "%s >> %d" % (s, byte_start - field_byte_start)
+ shift = byte_start - field_byte_start + extra_shift
+ if shift:
+ s = "%s >> %d" % (s, shift)
if field == byte.fields[-1]:
print("%s %s;" % (prefix, s))