AMD 3200 Revision History - Page 33

Table, Probes, Cause, System

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48063 Rev. 3.18 October 2012 Revision Guide for AMD Family 15h Models 00h-0Fh Processors 540 GART Table Walk Probes May Cause System Hang Description Probes that are generated for GART table walks may overflow internal queues and lead to a deadlock. Potential Effect on System System hang. Suggested Workaround System software that initializes the GART Table Base Address (D18F3x98) should set GART Aperture Control[DisGartTblWlkPrb] (D18F3x90[6]) = 1b. The GART tables should be in UC DRAM or be updated only using strongly-ordered uncacheable writes. System software should not set HWCR[ForceRdWrSzPrb] (MSRC001_0015[23]) if GART is enabled. Fix Planned No fix planned Product Errata 33

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540
GART
Table
Walk
Probes
May
Cause
System
Hang
Description
Probes
that
are
generated
for
GART
table
walks
may
overflow
internal
queues
and
lead
to
a
deadlock
.
Potential
Effect
on
System
System
hang
.
Suggested
Workaround
System
software
that
initializes
the
GART
Table
Base
Address
(
D
18
F
3
x
98
should
set
GART
Aperture
Control
[
DisGartTblWlkPrb
] (
D
18
F
3
x
90[6] = 1
b
.
The
GART
tables
should
be
in
UC
DRAM
or
be
updated
only
using
strongly-ordered
uncacheable
writes
.
System
software
should
not
set
HWCR
[
ForceRdWrSzPrb
] (
MSRC
001_0015[23]
if
GART
is
enabled
.
Fix
Planned
No
fix
planned
48063
Rev
. 3.18
October
2012
Revision
Guide
for
AMD
Family
15
h
Models
00
h-
0
Fh
Processors
Product
Errata
33