1.1 --- a/src/xlat/xltcache.c	Wed May 11 19:21:19 2011 +1000
     1.2 +++ b/src/xlat/xltcache.c	Wed May 11 20:25:49 2011 +1000
     1.3 @@ -500,6 +500,35 @@
     1.4  }
     1.5  
     1.6  /**
     1.7 + * Perform a reverse lookup to determine the SH4 address corresponding to
     1.8 + * the start of the code block containing ptr. This is _slow_ - it does a
     1.9 + * linear scan of the lookup table to find this.
    1.10 + *
    1.11 + * If the pointer cannot be found in any live block, returns -1 (as this
    1.12 + * is not a legal PC)
    1.13 + */
    1.14 +sh4addr_t xlat_get_address( unsigned char *ptr )
    1.15 +{
    1.16 +    int i,j;
    1.17 +    for( i=0; i<XLAT_LUT_PAGES; i++ ) {
    1.18 +        void **page = xlat_lut[i];
    1.19 +        if( page != NULL ) {
    1.20 +            for( j=0; j<XLAT_LUT_PAGE_ENTRIES; j++ ) {
    1.21 +                void *entry = page[j];
    1.22 +                if( ((uintptr_t)entry) > XLAT_LUT_ENTRY_USED ) {
    1.23 +                    xlat_cache_block_t block = XLAT_BLOCK_FOR_CODE(entry);
    1.24 +                    if( ptr >= block->code && ptr < block->code + block->size) {
    1.25 +                        /* Found it */
    1.26 +                        return (i<<13) | (j<<1);
    1.27 +                    }
    1.28 +                }
    1.29 +            }
    1.30 +        }
    1.31 +    }
    1.32 +    return -1;
    1.33 +}
    1.34 +
    1.35 +/**
    1.36   * Sanity check that the given pointer is at least contained in one of cache
    1.37   * regions, and has a sane-ish size. We don't do a full region walk atm.
    1.38   */