x86_64: grab PLSSR too when a DMA error occurs
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c
index f5828db..ed16a10 100644
--- a/arch/x86_64/kernel/pci-calgary.c
+++ b/arch/x86_64/kernel/pci-calgary.c
@@ -900,15 +900,18 @@
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)