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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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