4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Laurentiu Tudor <laurentiu.tudor@xxxxxxx> [ Upstream commit 0cdd431c337e99177e68597f3de34bedd3a20a74 ] 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@xxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: jason@xxxxxxxxxxxxxx Cc: marc.zyngier@xxxxxxx Cc: zhiqiang.hou@xxxxxxx Cc: minghuan.lian@xxxxxxx Link: https://lkml.kernel.org/r/20180605122727.12831-1-laurentiu.tudor@xxxxxxx Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/irqchip/irq-ls-scfg-msi.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/irqchip/irq-ls-scfg-msi.c +++ b/drivers/irqchip/irq-ls-scfg-msi.c @@ -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(stru 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,
