linux-kernel - [PATCH 10/15] x86-64: Calgary - grab PLSSR too when a DMA error occurs

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Message-Id: <1179821167443-git-send-email-muli@il.ibm.com>
Date:	Tue, 22 May 2007 04:05:59 -0400
From:	muli@...ibm.com
To:	ak@...e.de
Cc:	linux-kernel@...r.kernel.org, discuss@...-64.org, jdmason@...zu.us,
	michaelv@...ibm.com, guillaume.thouvenin@....bull.net,
	muli@...ibm.com
Subject: [PATCH 10/15] x86-64: Calgary - grab PLSSR too when a DMA error occurs

From: Muli Ben-Yehuda <muli@...ibm.com>

Signed-off-by: Muli Ben-Yehuda <muli@...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@...SR\n", tbl->it_busno, csr, plssr);
 }
 
 static void calioc2_dump_error_regs(struct iommu_table *tbl)
-- 
1.4.4

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