add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/irqchip/irq-ls-scfg-msi.c
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@@ -1,13 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Freescale SCFG MSI(-X) support
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  *
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  * Copyright (C) 2016 Freescale Semiconductor.
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  *
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  * Author: Minghuan Lian <Minghuan.Lian@nxp.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kernel.h>
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@@ -100,7 +97,7 @@
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 		msg->data |= cpumask_first(mask);
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 	}
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-	iommu_dma_map_msi_msg(data->irq, msg);
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+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg);
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 }
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 static int ls_scfg_msi_set_affinity(struct irq_data *irq_data,
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@@ -141,6 +138,7 @@
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 					unsigned int nr_irqs,
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 					void *args)
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 {
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+	msi_alloc_info_t *info = args;
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 	struct ls_scfg_msi *msi_data = domain->host_data;
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 	int pos, err = 0;
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@@ -157,6 +155,10 @@
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 	if (err)
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 		return err;
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+	err = iommu_dma_prepare_msi(info->desc, msi_data->msiir_addr);
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+	if (err)
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+		return err;
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+
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 	irq_domain_set_info(domain, virq, pos,
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 			    &ls_scfg_msi_parent_chip, msi_data,
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 			    handle_simple_irq, NULL, NULL);