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  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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arch/powerpc/mm/tlb_nohash_low.S
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        blr
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#ifdef CONFIG_PPC_47x
 
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/*
 
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 * 47x variant of icbt
 
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 */
 
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# define ICBT(CT,RA,RB) \
 
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        .long   0x7c00002c | ((CT) << 21) | ((RA) << 16) | ((RB) << 11)
 
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/*
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 * _tlbivax_bcast is only on 47x. We don't bother doing a runtime
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 * check though, it will blow up soon enough if we mistakenly try
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        isync
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        eieio
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        tlbsync
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        sync
 
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BEGIN_FTR_SECTION
 
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        b       1f
 
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END_FTR_SECTION_IFSET(CPU_FTR_476_DD2)
 
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        sync
 
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        wrtee   r10
 
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        blr
 
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/*
 
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 * DD2 HW could hang if in instruction fetch happens before msync completes.
 
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 * Touch enough instruction cache lines to ensure cache hits
 
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 */
 
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1:      mflr    r9
 
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        bl      2f
 
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2:      mflr    r6
 
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        li      r7,32
 
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        ICBT(0,r6,r7)           /* touch next cache line */
 
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        add     r6,r6,r7
 
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        ICBT(0,r6,r7)           /* touch next cache line */
 
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        add     r6,r6,r7
 
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        ICBT(0,r6,r7)           /* touch next cache line */
 
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        sync
 
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        nop
 
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        nop
 
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        nop
 
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        nop
 
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        nop
 
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        nop
 
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        nop
 
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        nop
 
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        mtlr    r9
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        wrtee   r10
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        blr
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#endif /* CONFIG_PPC_47x */