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    Subject[PATCH 10/15] x86-64: Calgary - grab PLSSR too when a DMA error occurs
    Date
    From: Muli Ben-Yehuda <muli@il.ibm.com>

    Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
    ---
    arch/x86_64/kernel/pci-calgary.c | 9 ++++++---
    1 files changed, 6 insertions(+), 3 deletions(-)

    diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c
    index 57ac81b..a49b19d 100644
    --- a/arch/x86_64/kernel/pci-calgary.c
    +++ b/arch/x86_64/kernel/pci-calgary.c
    @@ -902,15 +902,18 @@ static void __init calgary_free_bus(stru
    static void calgary_dump_error_regs(struct iommu_table *tbl)
    {
    void __iomem *bbar = tbl->bbar;
    - u32 val32;
    void __iomem *target;
    + u32 csr, plssr;

    target = calgary_reg(bbar, phb_offset(tbl->it_busno) | PHB_CSR_OFFSET);
    - val32 = be32_to_cpu(readl(target));
    + csr = be32_to_cpu(readl(target));
    +
    + target = calgary_reg(bbar, phb_offset(tbl->it_busno) | PHB_PLSSR_OFFSET);
    + plssr = be32_to_cpu(readl(target));

    /* If no error, the agent ID in the CSR is not valid */
    printk(KERN_EMERG "Calgary: DMA error on Calgary PHB 0x%x, "
    - "CSR = 0x%08x\n", tbl->it_busno, val32);
    + "0x%08x@CSR 0x%08x@PLSSR\n", tbl->it_busno, csr, plssr);
    }

    static void calioc2_dump_error_regs(struct iommu_table *tbl)
    --
    1.4.4
    -
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