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irqchip/ls-scfg-msi: Map MSIs in the iommu 

[ Upstream commit 0cdd431c33 ]

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
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Laurentiu Tudor 2018-06-05 15:27:27 +03:00 committed by Greg Kroah-Hartman
parent ff60eda504
commit d90c9b07cb
1 changed files with 3 additions and 0 deletions
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3
drivers/irqchip/irq-ls-scfg-msi.c
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@ -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
@ -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,