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irqchip/ls-scfg-msi: Map MSIs in the iommu
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Add the required iommu_dma_map_msi_msg() when composing the MSI message,
otherwise the interrupts will not work.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: jason@lakedaemon.net
Cc: marc.zyngier@arm.com
Cc: zhiqiang.hou@nxp.com
Cc: minghuan.lian@nxp.com
Link: https://lkml.kernel.org/r/20180605122727.12831-1-laurentiu.tudor@nxp.com
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Laurentiu Tudor authored and Thomas Gleixner committed Jun 6, 2018
1 parent a84277b commit 0cdd431
Showing 1 changed file with 3 additions and 0 deletions.
3 changes: 3 additions & 0 deletions drivers/irqchip/irq-ls-scfg-msi.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include <linux/of_pci.h>
#include <linux/of_platform.h>
#include <linux/spinlock.h>
#include <linux/dma-iommu.h>

#define MSI_IRQS_PER_MSIR 32
#define MSI_MSIR_OFFSET 4
Expand Down Expand Up @@ -94,6 +95,8 @@ static void ls_scfg_msi_compose_msg(struct irq_data *data, struct msi_msg *msg)

if (msi_affinity_flag)
msg->data |= cpumask_first(data->common->affinity);

iommu_dma_map_msi_msg(data->irq, msg);
}

static int ls_scfg_msi_set_affinity(struct irq_data *irq_data,
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