| #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/config.h> |
| #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_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 { |
| #ifdef CONFIG_PPC64 |
| void (*hpte_invalidate)(unsigned long slot, |
| unsigned long va, |
| int large, |
| int local); |
| long (*hpte_updatepp)(unsigned long slot, |
| unsigned long newpp, |
| unsigned long va, |
| int large, |
| int local); |
| void (*hpte_updateboltedpp)(unsigned long newpp, |
| unsigned long ea); |
| long (*hpte_insert)(unsigned long hpte_group, |
| unsigned long va, |
| unsigned long prpn, |
| unsigned long vflags, |
| unsigned long rflags); |
| 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); |
| int (*set_dabr)(unsigned long dabr); |
| #endif |
| |
| int (*probe)(int platform); |
| 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 *); |
| void (*cpu_irq_down)(int secondary); |
| |
| /* 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 */ |
| void (*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 to enable performance monitor counters for this |
| platform, called once per cpu. */ |
| void (*enable_pmcs)(void); |
| |
| #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 (*idle)(void); |
| void (*power_save)(void); |
| |
| void (*heartbeat)(void); |
| unsigned long heartbeat_reset; |
| unsigned long heartbeat_count; |
| |
| 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); |
| |
| /* this is for modules, since _machine can be a define -- Cort */ |
| int ppc_machine; |
| |
| #ifdef CONFIG_KEXEC |
| /* Called to shutdown machine specific hardware not already controlled |
| * by other drivers. |
| * XXX Should we move this one out of kexec scope? |
| */ |
| void (*machine_shutdown)(void); |
| |
| /* 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)(void); |
| |
| /* 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 */ |
| #endif /* CONFIG_PPC32 */ |
| }; |
| |
| extern void default_idle(void); |
| extern void native_idle(void); |
| |
| extern struct machdep_calls ppc_md; |
| 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 */ |