• Gavin Shan's avatar
    powerpc/powernv: Refactor PHB diag-data dump · af87d2fe
    Gavin Shan authored
    
    
    As Ben suggested, the patch prints PHB diag-data with multiple
    fields in one line and omits the line if the fields of that
    line are all zero.
    
    With the patch applied, the PHB3 diag-data dump looks like:
    
    PHB3 PHB#3 Diag-data (Version: 1)
    
      brdgCtl:     00000002
      RootSts:     0000000f 00400000 b0830008 00100147 00002000
      nFir:        0000000000000000 0030006e00000000 0000000000000000
      PhbSts:      0000001c00000000 0000000000000000
      Lem:         0000000000100000 42498e327f502eae 0000000000000000
      InAErr:      8000000000000000 8000000000000000 0402030000000000 0000000000000000
      PE[  8] A/B: 8480002b00000000 8000000000000000
    
    [ The current diag data is so big that it overflows the printk
      buffer pretty quickly in cases when we get a handful of errors
      at once which can happen. --BenH
    ]
    Signed-off-by: default avatarGavin Shan <shangw@linux.vnet.ibm.com>
    CC: <stable@vger.kernel.org>
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    af87d2fe
pci.c 22.6 KB