| #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 machdep_calls { |
| char *name; |
| #ifdef CONFIG_PPC64 |
| void (*hpte_invalidate)(unsigned long slot, |
| unsigned long vpn, |
| int psize, int ssize, |
| int local); |
| long (*hpte_updatepp)(unsigned long slot, |
| unsigned long newpp, |
| unsigned long vpn, |
| int psize, 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 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); |
| |
| /* 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); |
| |
| 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); |
| |
| /* 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); |
| |
| /* 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 */ |
| |
| #ifdef CONFIG_SUSPEND |
| /* These are called to disable and enable, respectively, IRQs when |
| * entering a suspend state. If NULL, then the generic versions |
| * will be called. The generic versions disable/enable the |
| * decrementer along with interrupts. |
| */ |
| void (*suspend_disable_irqs)(void); |
| void (*suspend_enable_irqs)(void); |
| #endif |
| int (*suspend_disable_cpu)(void); |
| |
| #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE |
| ssize_t (*cpu_probe)(const char *, size_t); |
| ssize_t (*cpu_release)(const char *, size_t); |
| #endif |
| }; |
| |
| extern void e500_idle(void); |
| extern void power4_idle(void); |
| extern void power7_idle(void); |
| extern void ppc6xx_idle(void); |
| extern void book3e_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 */ |
| |
| |
| /* 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); |
| |
| 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); |
| } |
| |
| #define __define_machine_initcall(mach, fn, id) \ |
| static int __init __machine_initcall_##mach##_##fn(void) { \ |
| if (machine_is(mach)) return fn(); \ |
| return 0; \ |
| } \ |
| __define_initcall(__machine_initcall_##mach##_##fn, id); |
| |
| #define machine_core_initcall(mach, fn) __define_machine_initcall(mach, fn, 1) |
| #define machine_core_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 1s) |
| #define machine_postcore_initcall(mach, fn) __define_machine_initcall(mach, fn, 2) |
| #define machine_postcore_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 2s) |
| #define machine_arch_initcall(mach, fn) __define_machine_initcall(mach, fn, 3) |
| #define machine_arch_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 3s) |
| #define machine_subsys_initcall(mach, fn) __define_machine_initcall(mach, fn, 4) |
| #define machine_subsys_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 4s) |
| #define machine_fs_initcall(mach, fn) __define_machine_initcall(mach, fn, 5) |
| #define machine_fs_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 5s) |
| #define machine_rootfs_initcall(mach, fn) __define_machine_initcall(mach, fn, rootfs) |
| #define machine_device_initcall(mach, fn) __define_machine_initcall(mach, fn, 6) |
| #define machine_device_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 6s) |
| #define machine_late_initcall(mach, fn) __define_machine_initcall(mach, fn, 7) |
| #define machine_late_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 7s) |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _ASM_POWERPC_MACHDEP_H */ |