18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved. 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Author: Tony Li <tony.li@freescale.com> 68c2ecf20Sopenharmony_ci * Jason Jin <Jason.jin@freescale.com> 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci#ifndef _POWERPC_SYSDEV_FSL_MSI_H 98c2ecf20Sopenharmony_ci#define _POWERPC_SYSDEV_FSL_MSI_H 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#include <linux/of.h> 128c2ecf20Sopenharmony_ci#include <asm/msi_bitmap.h> 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#define NR_MSI_REG_MSIIR 8 /* MSIIR can index 8 MSI registers */ 158c2ecf20Sopenharmony_ci#define NR_MSI_REG_MSIIR1 16 /* MSIIR1 can index 16 MSI registers */ 168c2ecf20Sopenharmony_ci#define NR_MSI_REG_MAX NR_MSI_REG_MSIIR1 178c2ecf20Sopenharmony_ci#define IRQS_PER_MSI_REG 32 188c2ecf20Sopenharmony_ci#define NR_MSI_IRQS_MAX (NR_MSI_REG_MAX * IRQS_PER_MSI_REG) 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci#define FSL_PIC_IP_MASK 0x0000000F 218c2ecf20Sopenharmony_ci#define FSL_PIC_IP_MPIC 0x00000001 228c2ecf20Sopenharmony_ci#define FSL_PIC_IP_IPIC 0x00000002 238c2ecf20Sopenharmony_ci#define FSL_PIC_IP_VMPIC 0x00000003 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci#define MSI_HW_ERRATA_ENDIAN 0x00000010 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_cistruct fsl_msi_cascade_data; 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_cistruct fsl_msi { 308c2ecf20Sopenharmony_ci struct irq_domain *irqhost; 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci unsigned long cascade_irq; 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci u32 msiir_offset; /* Offset of MSIIR, relative to start of CCSR */ 358c2ecf20Sopenharmony_ci u32 ibs_shift; /* Shift of interrupt bit select */ 368c2ecf20Sopenharmony_ci u32 srs_shift; /* Shift of the shared interrupt register select */ 378c2ecf20Sopenharmony_ci void __iomem *msi_regs; 388c2ecf20Sopenharmony_ci u32 feature; 398c2ecf20Sopenharmony_ci struct fsl_msi_cascade_data *cascade_array[NR_MSI_REG_MAX]; 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci struct msi_bitmap bitmap; 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci struct list_head list; /* support multiple MSI banks */ 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci phandle phandle; 468c2ecf20Sopenharmony_ci}; 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci#endif /* _POWERPC_SYSDEV_FSL_MSI_H */ 498c2ecf20Sopenharmony_ci 50