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powerpc/xive: Fix xmon support on the PowerNV platform

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commit 97ef275077 upstream.

The PowerNV platform has multiple IRQ chips and the xmon command
dumping the state of the XIVE interrupt should only operate on the
XIVE IRQ chip.

Fixes: 5896163f7f ("powerpc/xmon: Improve output of XIVE interrupts")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200306150143.5551-3-clg@kaod.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Cédric Le Goater
2020-03-06 16:01:41 +01:00
committed by Greg Kroah-Hartman
parent 1ab730b659
commit ed6f6b2b39
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/sysdev/xive/common.c
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@@ -258,11 +258,15 @@ notrace void xmon_xive_do_dump(int cpu)
int xmon_xive_get_irq_config(u32 hw_irq, struct irq_data *d)
{
struct irq_chip *chip = irq_data_get_irq_chip(d);
int rc;
u32 target;
u8 prio;
u32 lirq;
if (!is_xive_irq(chip))
return -EINVAL;
rc = xive_ops->get_irq_config(hw_irq, &target, &prio, &lirq);
if (rc) {
xmon_printf("IRQ 0x%08x : no config rc=%d\n", hw_irq, rc);