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# uts/sun4u/Makefile.workarounds

#

# Copyright 2005 Sun Microsystems, Inc. All rights reserved.

# Use is subject to license terms.

#

#ident "%Z%%M% %I% %E% SMI"

#

#

# This makefile contains workaround defines to be shared

# by Makefile.sun4u and the sun4u genunix Makefile.

#

# Define the minimum cpu rev this kernel will support

# (min is 0x11 with all workarounds enabled)

WORKAROUND_DEFS = -DSPITFIRE_MINREV_SUPPORTED=0x21

# The following are required to support Spitfire <= 2.0

# WORKAROUND_DEFS += -DSF_ERRATA_23 # call causes illegal-insn

# The following are required to support Spitfire <= 2.1

WORKAROUND_DEFS += -DSF_ERRATA_30 # call causes fp-disabled

# The following are required to support all(?) Blackbirds

WORKAROUND_DEFS += -DBB_ERRATA_1 # writes to TICK_COMPARE fail

# The following is required to support all Spitfires and Blackbirds

WORKAROUND_DEFS += -DSF_ERRATA_32 # need dummy store before ldxa's

# from ASI_?TLB_*

# The following is required to support all Spitfires and Blackbirds

WORKAROUND_DEFS += -DSF_ERRATA_51 # the IMU gets

# confused by a membar #Sync

# in a delay slot

# The following is required to support all Spitfires and Blackbirds

WORKAROUND_DEFS += -DSF_ERRATA_54 # membar sync not good enough

# before ldxa from ASI_INTR_DISPATCH

# The following is required to support Spitfires and Blackbirds

WORKAROUND_DEFS += -DSF_ERRATA_57 # VA Hole

# The following is required to support all Spitfires and Blackbirds

WORKAROUND_DEFS += -DSF_V9_TABLE_28 # discrepancy in the Sparc V9 docs

# on handling of fp underflow/overflow

# Minimum supported Cheetah revision

WORKAROUND_DEFS += -DCHEETAH_MINREV_SUPPORTED=0x30

# Cheetah+ erratum 25

# Will be fixed in Cheetah++ 1.1

WORKAROUND_DEFS += -DCHEETAHPLUS_ERRATUM_25

# Interrupts not taken during fpops

# Will not be fixed in Cheetah.

WORKAROUND_DEFS += -DCHEETAH_ERRATUM_109

# PRIV bit setting not held on TO or BERR

# Will not be fixed in Cheetah.

WORKAROUND_DEFS += -DCHEETAH_ERRATUM_127

# Jalapeno Errata 85

# apply force-full-speed workaround to uni Jalapeno

# Fixed in Jalapeno 2.4

WORKAROUND_DEFS += -DJALAPENO_ERRATA_85

# The following is required to support all Cheetahs and derivatives

# Relocate ITLB t16 index 0 locked TTEs to avoid eviction.

# Will not be fixed.

WORKAROUND_DEFS += -DCHEETAHPLUS_ERRATUM_34