> -----Original Message-----
> From: upstream-release-boun...@linux.freescale.net [mailto:upstream-
> release-boun...@linux.freescale.net] On Behalf Of Laurentiu Tudor
> Sent: Tuesday, June 5, 2018 5:57 PM
> To: t...@linutronix.de; ja...@lakedaemon.net; marc.zyng...@arm.com; linux-
> ker...@vger.kernel.org
> Cc: M.h. Lian <minghuan.l...@nxp.com>; Z.q. Hou <zhiqiang....@nxp.com>;
> Laurentiu Tudor <laurentiu.tu...@nxp.com>
> Subject: [upstream-release] [PATCH] irqchip/ls-scfg-msi: map MSIs in the iommu
>
> 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.tu...@nxp.com>
Reviewed-by: Bharat Bhushan <bharat.bhus...@nxp.com>
Thanks
-Bharat
> ---
> drivers/irqchip/irq-ls-scfg-msi.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/irqchip/irq-ls-scfg-msi.c
> b/drivers/irqchip/irq-ls-scfg-msi.c
> index 57e3d900f19e..1ec3bfe56693 100644
> --- 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(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,
> --
> 2.17.0
>
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