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powerpc/xics/opal: Fix processor numbers in OPAL ICP

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When using the OPAL ICP backend we incorrectly pass Linux CPU numbers
rather than HW CPU numbers to OPAL.

Fixes: d74361881f ("powerpc/xics: Add ICP OPAL backend")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-09-06 13:43:45 +10:00 committed by Michael Ellerman
parent d81d825821
commit f8e33475b0
1 changed files with 7 additions and 5 deletions
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12
arch/powerpc/sysdev/xics/icp-opal.c
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@ -23,10 +23,10 @@
static void icp_opal_teardown_cpu(void)
{
int cpu = smp_processor_id();
int hw_cpu = hard_smp_processor_id();
/* Clear any pending IPI */
opal_int_set_mfrr(cpu, 0xff);
opal_int_set_mfrr(hw_cpu, 0xff);
}
static void icp_opal_flush_ipi(void)
@ -101,14 +101,16 @@ static void icp_opal_eoi(struct irq_data *d)
static void icp_opal_cause_ipi(int cpu, unsigned long data)
{
opal_int_set_mfrr(cpu, IPI_PRIORITY);
int hw_cpu = get_hard_smp_processor_id(cpu);
opal_int_set_mfrr(hw_cpu, IPI_PRIORITY);
}
static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id)
{
int cpu = smp_processor_id();
int hw_cpu = hard_smp_processor_id();
opal_int_set_mfrr(cpu, 0xff);
opal_int_set_mfrr(hw_cpu, 0xff);
return smp_ipi_demux();
}