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Commit f8e33475 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Michael Ellerman
Browse files

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



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

Fixes: d7436188 ("powerpc/xics: Add ICP OPAL backend")
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent d81d8258

arch/powerpc/sysdev/xics/icp-opal.c

+7 −5
Original line number Diff line number Diff line
@@ -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();

}