50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Author: Tony Li <tony.li@freescale.com>
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* Jason Jin <Jason.jin@freescale.com>
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*/
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#ifndef _POWERPC_SYSDEV_FSL_MSI_H
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#define _POWERPC_SYSDEV_FSL_MSI_H
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#include <linux/of.h>
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#include <asm/msi_bitmap.h>
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#define NR_MSI_REG_MSIIR 8 /* MSIIR can index 8 MSI registers */
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#define NR_MSI_REG_MSIIR1 16 /* MSIIR1 can index 16 MSI registers */
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#define NR_MSI_REG_MAX NR_MSI_REG_MSIIR1
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#define IRQS_PER_MSI_REG 32
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#define NR_MSI_IRQS_MAX (NR_MSI_REG_MAX * IRQS_PER_MSI_REG)
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#define FSL_PIC_IP_MASK 0x0000000F
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#define FSL_PIC_IP_MPIC 0x00000001
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#define FSL_PIC_IP_IPIC 0x00000002
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#define FSL_PIC_IP_VMPIC 0x00000003
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#define MSI_HW_ERRATA_ENDIAN 0x00000010
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struct fsl_msi_cascade_data;
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struct fsl_msi {
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struct irq_domain *irqhost;
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unsigned long cascade_irq;
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u32 msiir_offset; /* Offset of MSIIR, relative to start of CCSR */
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u32 ibs_shift; /* Shift of interrupt bit select */
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u32 srs_shift; /* Shift of the shared interrupt register select */
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void __iomem *msi_regs;
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u32 feature;
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struct fsl_msi_cascade_data *cascade_array[NR_MSI_REG_MAX];
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struct msi_bitmap bitmap;
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struct list_head list; /* support multiple MSI banks */
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phandle phandle;
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};
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#endif /* _POWERPC_SYSDEV_FSL_MSI_H */
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