/* * Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved. * * Author: Tony Li <tony.li@freescale.com> * Jason Jin <Jason.jin@freescale.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; version 2 of the * License. * */ #ifndef _POWERPC_SYSDEV_FSL_MSI_H #define _POWERPC_SYSDEV_FSL_MSI_H #include <linux/of.h> #include <asm/msi_bitmap.h> #define NR_MSI_REG_MSIIR 8 /* MSIIR can index 8 MSI registers */ #define NR_MSI_REG_MSIIR1 16 /* MSIIR1 can index 16 MSI registers */ #define NR_MSI_REG_MAX NR_MSI_REG_MSIIR1 #define IRQS_PER_MSI_REG 32 #define NR_MSI_IRQS_MAX (NR_MSI_REG_MAX * IRQS_PER_MSI_REG) #define FSL_PIC_IP_MASK 0x0000000F #define FSL_PIC_IP_MPIC 0x00000001 #define FSL_PIC_IP_IPIC 0x00000002 #define FSL_PIC_IP_VMPIC 0x00000003 #define MSI_HW_ERRATA_ENDIAN 0x00000010 struct fsl_msi_cascade_data; struct fsl_msi { struct irq_domain *irqhost; unsigned long cascade_irq; u32 msiir_offset; /* Offset of MSIIR, relative to start of CCSR */ u32 ibs_shift; /* Shift of interrupt bit select */ u32 srs_shift; /* Shift of the shared interrupt register select */ void __iomem *msi_regs; u32 feature; struct fsl_msi_cascade_data *cascade_array[NR_MSI_REG_MAX]; struct msi_bitmap bitmap; struct list_head list; /* support multiple MSI banks */ phandle phandle; }; #endif /* _POWERPC_SYSDEV_FSL_MSI_H */