#ifndef _ASM_POWERPC_MACHDEP_H
#define _ASM_POWERPC_MACHDEP_H
#ifdef __KERNEL__
/*
* 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/export.h>
#include <asm/setup.h>
/* We export this macro for external modules like Alsa to know if
* ppc_md.feature_call is implemented or not
*/
#define CONFIG_PPC_HAS_FEATURE_CALLS
struct pt_regs;
struct pci_bus;
struct device_node;
struct iommu_table;
struct rtc_time;
struct file;
struct pci_controller;
struct kimage;
struct pci_host_bridge;
struct machdep_calls {
char *name;
#ifdef CONFIG_PPC64
void (*hpte_invalidate)(unsigned long slot,
unsigned long vpn,
int bpsize, int apsize,
int ssize, int local);
long (*hpte_updatepp)(unsigned long slot,
unsigned long newpp,
unsigned long vpn,
int bpsize, int apsize,
int ssize, int local);
void (*hpte_updateboltedpp)(unsigned long newpp,
unsigned long ea,
int psize, int ssize);
long (*hpte_insert)(unsigned long hpte_group,
unsigned long vpn,
unsigned long prpn,
unsigned long rflags,
unsigned long vflags,
int psize, int apsize,
int ssize);
long (*hpte_remove)(unsigned long hpte_group);
void (*hpte_removebolted)(unsigned long ea,
int psize, int ssize);
void (*flush_hash_range)(unsigned long number, int local);
void (*hugepage_invalidate)(struct mm_struct *mm,
unsigned char *hpte_slot_array,
unsigned long addr, int psize);
/* special for kexec, to be called in real mode, linear mapping is
* destroyed as well */
void (*hpte_clear_all)(void);
int (*tce_build)(struct iommu_table *tbl,
long index,
long npages,
unsigned long uaddr,
enum dma_data_direction direction,
struct dma_attrs *attrs);
void (*tce_free)(struct iommu_table *tbl,
long index,
long npages);
unsigned long (*tce_get)(struct iommu_table *tbl,
long index);
void (*tce_flush)(struct iommu_table *tbl);
/* _rm versions are for real mode use only */
int (*tce_build_rm)(struct iommu_table *tbl,
long index,
long npages,
unsigned long uaddr,
enum dma_data_direction direction,
struct dma_attrs *attrs);
void (*tce_free_rm)(struct iommu_table *tbl,
long index,
long npages);
void (*tce_flush_rm)(struct iommu_table *tbl);
void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
unsigned long flags, void *caller);
void (*iounmap)(volatile void __iomem *token);
#ifdef CONFIG_PM
void (*iommu_save)(void);
void (*iommu_restore)(void);
#endif
#endif /* CONFIG_PPC64 */
void (*pci_dma_dev_setup)(struct pci_dev *dev);
void (*pci_dma_bus_setup)(struct pci_bus *bus);
/* Platform set_dma_mask and dma_get_required_mask overrides */
int (*dma_set_mask)(struct device *dev, u64 dma_mask);
u64 (*dma_get_required_mask)(struct device *dev);
int (*probe)(void);
void (*setup_arch)(void); /* Optional, may be NULL */
void (*init_early)(void);
/* Optional, may be NULL. */
void (*show_cpuinfo)(struct seq_file *m);
void (*show_percpuinfo)(struct seq_file *m, int i);
void (*init_IRQ)(void);
/* Return an irq, or NO_IRQ to indicate there are none pending. */
unsigned int (*get_irq)(void);
/* PCI stuff */
/* Called after scanning the bus, before allocating resources */
void (*pcibios_fixup)(void);
int (*pci_probe_mode)(struct pci_bus *);
void (*pci_irq_fixup)(struct pci_dev *dev);
int (*pcibios_root_bridge_prepare)(struct pci_host_bridge
*bridge);
/* To setup PHBs when using automatic OF platform driver for PCI */
int (*pci_setup_phb)(struct pci_controller *host);
#ifdef CONFIG_PCI_MSI
int (*msi_check_device)(struct pci_dev* dev,
int nvec, int type);
int (*setup_msi_irqs)(struct pci_dev *dev,
int nvec, int type);
void (*teardown_msi_irqs)(struct pci_dev *dev);
#endif
void (*restart)(char *cmd);
void (*power_off)(void);
void (*halt)(void);
void (*panic)(char *str);
void (*cpu_die)(void);
long (*time_init)(void); /* Optional, may be NULL */
int (*set_rtc_time)(struct rtc_time *);
void (*get_rtc_time)(struct rtc_time *);
unsigned long (*get_boot_time)(void);
unsigned char (*rtc_read_val)(int addr);
void (*rtc_write_val)(int addr, unsigned char val);
void (*calibrate_decr)(void);
void (*progress)(char *, unsigned short);
/* Interface for platform error logging */
void (*log_error)(char *buf, unsigned int err_type, int fatal);
unsigned char (*nvram_read_val)(int addr);
void (*nvram_write_val)(int addr, unsigned char val);
ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
ssize_t (*nvram_size)(void);
void (*nvram_sync)(void);
/* Exception handlers */
int (*system_reset_exception)(struct pt_regs *regs);
int (*machine_check_exception)(struct pt_regs *regs);
/* Motherboard/chipset features. This is a kind of general purpose
* hook used to control some machine specific features (like reset
* lines, chip power control, etc...).
*/
long (*feature_call)(unsigned int feature, ...);
/* Get legacy PCI/IDE interrupt mapping */
int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
/* Get access protection for /dev/mem */
pgprot_t (*phys_mem_access_prot)(struct file *file,
unsigned long pfn,
unsigned long size,
pgprot_t vma_prot);
/*
* Function for waiting for work with reduced power in idle loop;
* called with interrupts disabled.
*/
void (*power_save)(void);
/* Function to enable performance monitor counters for this
platform, called once per cpu. */
void (*enable_pmcs)(void);
/* Set DABR for this platform, leave empty for default implemenation */
int (*set_dabr)(unsigned long dabr,
unsigned long dabrx);
/* Set DAWR for this platform, leave empty for default implemenation */
int (*set_dawr)(unsigned long dawr,
unsigned long dawrx);
#ifdef CONFIG_PPC32 /* XXX for now */
/* A general init function, called by ppc_init in init/main.c.
May be NULL. */
void (*init)(void);
void (*kgdb_map_scc)(void);
/*
* optional PCI "hooks"
*/
/* Called at then very end of pcibios_init() */
void (*pcibios_after_init)(void);
#endif /* CONFIG_PPC32 */
/* Called in indirect_* to avoid touching devices */
int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
/* Called after PPC generic resource fixup to perform
machine specific fixups */
void (*pcibios_fixup_resources)(struct pci_dev *);
/* Called for each PCI bus in the system when it's probed */
void (*pcibios_fixup_bus)(struct pci_bus *);
/* Called when pci_enable_device() is called. Returns 0 to
* allow assignment/enabling of the device. */
int (*pcibios_enable_device_hook)(struct pci_dev *);
/* Called after scan and before resource survey */
void (*pcibios_fixup_phb)(struct pci_controller *hose);
/* Called during PCI resource reassignment */
resource_size_t (*pcibios_window_alignment)(struct pci_bus *, unsigned long type);
/* Called to shutdown machine specific hardware not already controlled
* by other drivers.
*/
void (*machine_shutdown)(void);
#ifdef CONFIG_KEXEC
void (*kexec_cpu_down)(int crash_shutdown, int secondary);
/* Called to do what every setup is needed on image and the
* reboot code buffer. Returns 0 on success.
* Provide your own (maybe dummy) implementation if your platform
* claims to support kexec.
*/
int (*machine_kexec_prepare)(struct kimage *image)