#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 <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;
#ifdef CONFIG_KEXEC
struct kimage;
#endif
#ifdef CONFIG_SMP
struct smp_ops_t {
void (*message_pass)(int target, int msg);
int (*probe)(void);
void (*kick_cpu)(int nr);
void (*setup_cpu)(int nr);
void (*take_timebase)(void);
void (*give_timebase)(void);
int (*cpu_enable)(unsigned int nr);
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int nr);
int (*cpu_bootable)(unsigned int nr);
};
#endif
struct machdep_calls {
char *name;
#ifdef CONFIG_PPC64
void (*hpte_invalidate)(unsigned long slot,
unsigned long va,
int psize,
int local);
long (*hpte_updatepp)(unsigned long slot,
unsigned long newpp,
unsigned long va,
int pize,
int local);
void (*hpte_updateboltedpp)(unsigned long newpp,
unsigned long ea,
int psize);
long (*hpte_insert)(unsigned long hpte_group,
unsigned long va,
unsigned long prpn,
unsigned long rflags,
unsigned long vflags,
int psize);
long (*hpte_remove)(unsigned long hpte_group);
void (*flush_hash_range)(unsigned long number, int local);
/* special for kexec, to be called in real mode, linar mapping is
* destroyed as well */
void (*hpte_clear_all)(void);
void (*tce_build)(struct iommu_table * tbl,
long index,
long npages,
unsigned long uaddr,
enum dma_data_direction direction);
void (*tce_free)(struct iommu_table *tbl,
long index,
long npages);
void (*tce_flush)(struct iommu_table *tbl);
void (*iommu_dev_setup)(struct pci_dev *dev);
void (*iommu_bus_setup)(struct pci_bus *bus);
void (*irq_bus_setup)(struct pci_bus *bus);
#endif /* CONFIG_PPC64 */
int (*probe)(void);
void (*setup_arch)(void);
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);
int (*get_irq)(struct pt_regs *);
#ifdef CONFIG_KEXEC
void (*kexec_cpu_down)(int crash_shutdown, int secondary);
#endif
/* PCI stuff */
/* Called after scanning the bus, before allocating resources */
void (*pcibios_fixup)(void);
int (*pci_probe_mode)(struct pci_bus *);
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, ...);
/* Check availability of legacy devices like i8042 */
int (*check_legacy_ioport)(unsigned int baseport);
/* 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);
/* Idle loop for this platform, leave empty for default idle loop */
void (*idle_loop)(void);
/*
* 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);
#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 (*setup_io_mappings)(void);
void (*early_serial_map)(void);
void (*kgdb_map_scc)(void);
/*
* optional PCI "hooks"
*/
/* 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 (initial=0) or
* when a device with no assigned resource is found (initial=1).
* Returns 0 to allow assignment/enabling of the device. */
int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
/* For interrupt routing */
unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
/* Called in indirect_* to avoid touching devices */
int (*pci_exclude_device)(unsigned char, unsigned char);
/* Called at then very end of pcibios_init() */
void (*pcibios_after_init)(void);
#endif /* CONFIG_PPC32 */
/* Called to shutdown machine specific hardware not already controlled
* by other drivers.
*/
void (*machine_shutdown)(void);
#ifdef CONFIG_KEXEC
/* Called to do the minimal shutdown needed to run a kexec'd kernel
* to run successfully.
* XXX Should we move this one out of kexec scope?
*/
void (*machine_crash_shutdown)(struct pt_regs *regs);
/* 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);
/* Called to handle any machine specific cleanup on image */
void (*machine_kexec_cleanup)(struct kimage *image);
/* Called to perform the _real_ kexec.
* Do NOT allocate memory or fail here. We are past the point of
* no return.
*/
void (*machine_kexec)(struct kimage *image);
#endif /* CONFIG_KEXEC */
};
extern void power4_idle(void);
extern void ppc6xx_idle(void);
/*
* ppc_md contains a copy of the machine description structure for the
* current platform. machine_id contains the initial address where the
* description was found during boot.
*/
extern struct machdep_calls ppc_md;
extern struct machdep_calls *machine_id;
#define __machine_desc __attribute__ ((__section__ (".machine.desc")))
#define define_machine(name) \
extern struct machdep_calls mach_##name; \
EXPORT_SYMBOL(mach_##name); \
struct machdep_calls mach_##name __machine_desc =
#define machine_is(name) \
({ \
extern struct machdep_calls mach_##name \
__attribute__((weak)); \
machine_id == &mach_##name; \
})
extern void probe_machine(void);
extern char cmd_line[COMMAND_LINE_SIZE];
#ifdef CONFIG_PPC_PMAC
/*
* Power macintoshes have either a CUDA, PMU or SMU controlling
* system reset, power, NVRAM, RTC.
*/
typedef enum sys_ctrler_kind {
SYS_CTRLER_UNKNOWN = 0,
SYS_CTRLER_CUDA = 1,
SYS_CTRLER_PMU = 2,
SYS_CTRLER_SMU = 3,
} sys_ctrler_t;
extern sys_ctrler_t sys_ctrler;
#endif /* CONFIG_PPC_PMAC */
extern void setup_pci_ptrs(void);
#ifdef CONFIG_SMP
/* Poor default implementations */
extern void __devinit smp_generic_give_timebase(void);
extern void __devinit smp_generic_take_timebase(void);
#endif /* CONFIG_SMP */
/* Functions to produce codes on the leds.
* The SRC code should be unique for the message category and should
* be limited to the lower 24 bits (the upper 8 are set by these funcs),
* and (for boot & dump) should be sorted numerically in the order
* the events occur.
*/
/* Print a boot progress message. */
void ppc64_boot_msg(unsigned int src, const char *msg);
/* Print a termination message (print only -- does not stop the kernel) */
void ppc64_terminate_msg(unsigned int src, const char *msg);
static inline void log_error(char *buf, unsigned int err_type, int fatal)
{
if (ppc_md.log_error)
ppc_md.log_error(buf, err_type, fatal);
}
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MACHDEP_H */
