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Diffstat (limited to 'arch/mips/pci/ops-tx3927.c')
-rw-r--r--arch/mips/pci/ops-tx3927.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/mips/pci/ops-tx3927.c b/arch/mips/pci/ops-tx3927.c
index c6bd79e71e2..31c15019659 100644
--- a/arch/mips/pci/ops-tx3927.c
+++ b/arch/mips/pci/ops-tx3927.c
@@ -37,8 +37,11 @@
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/interrupt.h>
#include <asm/addrspace.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9/pci.h>
#include <asm/txx9/tx3927.h>
static int mkaddr(struct pci_bus *bus, unsigned char devfn, unsigned char where)
@@ -194,3 +197,34 @@ void __init tx3927_pcic_setup(struct pci_controller *channel,
PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
local_irq_restore(flags);
}
+
+static irqreturn_t tx3927_pcierr_interrupt(int irq, void *dev_id)
+{
+ struct pt_regs *regs = get_irq_regs();
+
+ if (txx9_pci_err_action != TXX9_PCI_ERR_IGNORE) {
+ printk(KERN_WARNING "PCI error interrupt at 0x%08lx.\n",
+ regs->cp0_epc);
+ printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n",
+ tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat);
+ }
+ if (txx9_pci_err_action != TXX9_PCI_ERR_PANIC) {
+ /* clear all pci errors */
+ tx3927_pcicptr->pcistat |= TX3927_PCIC_PCISTATIM_ALL;
+ tx3927_pcicptr->istat = TX3927_PCIC_IIM_ALL;
+ tx3927_pcicptr->tstat = TX3927_PCIC_TIM_ALL;
+ tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
+ return IRQ_HANDLED;
+ }
+ console_verbose();
+ panic("PCI error.");
+}
+
+void __init tx3927_setup_pcierr_irq(void)
+{
+ if (request_irq(TXX9_IRQ_BASE + TX3927_IR_PCI,
+ tx3927_pcierr_interrupt,
+ IRQF_DISABLED, "PCI error",
+ (void *)TX3927_PCIC_REG))
+ printk(KERN_WARNING "Failed to request irq for PCIERR\n");
+}