[PATCH 22/23] powerpc/eeh: Connect EEH error interrupt handle
From: Gavin Shan <hidden>
Date: 2013-05-30 08:24:31
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
The EEH error interrupts should have been exported by firmware through device tree. The OS already installed the interrupt handler (opal_interrupt()) for them. The patch checks if we have any existing EEH errors and wakes the kernel thread up to process that if possible. Signed-off-by: Gavin Shan <redacted> --- arch/powerpc/platforms/powernv/opal.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 628c564..cca78c9 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c@@ -18,6 +18,8 @@ #include <linux/slab.h> #include <asm/opal.h> #include <asm/firmware.h> +#include <asm/io.h> +#include <asm/eeh.h> #include "powernv.h"
@@ -296,6 +298,10 @@ static irqreturn_t opal_interrupt(int irq, void *data) uint64_t events; opal_handle_interrupt(virq_to_hw(irq), &events); +#ifdef CONFIG_EEH + if (events & OPAL_EVENT_PCI_ERROR) + pci_err_event(); +#endif /* XXX TODO: Do something with the events */
--
1.7.5.4