FreeBSD/Linux Kernel Cross Reference
sys/sun4u/Makefile.workarounds

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     # The contents of this file are subject to the terms of the
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    # If applicable, add the following below this CDDL HEADER, with the
    # fields enclosed by brackets "[]" replaced with your own identifying
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    #
    #
    # uts/sun4u/Makefile.workarounds
    #
    # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
    # Use is subject to license terms.
    #
    #pragma 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
    

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