1 files changed, 365 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
new file mode 100644
index 000000000000..893aafd87fde
--- /dev/null
+++ b/arch/powerpc/include/asm/machdep.h
@@ -0,0 +1,365 @@
+#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;
+struct pci_controller;
+#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 ssize,
+                                           int local);
+        long            (*hpte_updatepp)(unsigned long slot, 
+                                         unsigned long newpp, 
+                                         unsigned long va,
+                                         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 va,
+                                       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, linar 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            (*pci_dma_dev_setup)(struct pci_dev *dev);
+        void            (*pci_dma_bus_setup)(struct pci_bus *bus);
+
+        void __iomem *  (*ioremap)(phys_addr_t addr, unsigned long size,
+                                   unsigned long flags);
+        void            (*iounmap)(volatile void __iomem *token);
+
+#ifdef CONFIG_PM
+        void            (*iommu_save)(void);
+        void            (*iommu_restore)(void);
+#endif
+#endif /* CONFIG_PPC64 */
+
+        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);
+        unsigned int    (*get_irq)(void);
+#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            (*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);
+
+        /* 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            (*kgdb_map_scc)(void);
+
+        /*
+         * optional PCI "hooks"
+         */
+        /* Called in indirect_* to avoid touching devices */
+        int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char);
+
+        /* Called at then very end of pcibios_init() */
+        void (*pcibios_after_init)(void);
+
+#endif /* CONFIG_PPC32 */
+
+        /* 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 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 */
+
+#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
+};
+
+extern void e500_idle(void);
+extern void power4_idle(void);
+extern void power4_cpu_offline_powersave(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);
+}
+
+#define __define_machine_initcall(mach,level,fn,id) \
+        static int __init __machine_initcall_##mach##_##fn(void) { \
+                if (machine_is(mach)) return fn(); \
+                return 0; \
+        } \
+        __define_initcall(level,__machine_initcall_##mach##_##fn,id);
+
+#define machine_core_initcall(mach,fn)          __define_machine_initcall(mach,"1",fn,1)
+#define machine_core_initcall_sync(mach,fn)     __define_machine_initcall(mach,"1s",fn,1s)
+#define machine_postcore_initcall(mach,fn)      __define_machine_initcall(mach,"2",fn,2)
+#define machine_postcore_initcall_sync(mach,fn) __define_machine_initcall(mach,"2s",fn,2s)
+#define machine_arch_initcall(mach,fn)          __define_machine_initcall(mach,"3",fn,3)
+#define machine_arch_initcall_sync(mach,fn)     __define_machine_initcall(mach,"3s",fn,3s)
+#define machine_subsys_initcall(mach,fn)        __define_machine_initcall(mach,"4",fn,4)
+#define machine_subsys_initcall_sync(mach,fn)   __define_machine_initcall(mach,"4s",fn,4s)
+#define machine_fs_initcall(mach,fn)            __define_machine_initcall(mach,"5",fn,5)
+#define machine_fs_initcall_sync(mach,fn)       __define_machine_initcall(mach,"5s",fn,5s)
+#define machine_rootfs_initcall(mach,fn)        __define_machine_initcall(mach,"rootfs",fn,rootfs)
+#define machine_device_initcall(mach,fn)        __define_machine_initcall(mach,"6",fn,6)
+#define machine_device_initcall_sync(mach,fn)   __define_machine_initcall(mach,"6s",fn,6s)
+#define machine_late_initcall(mach,fn)          __define_machine_initcall(mach,"7",fn,7)
+#define machine_late_initcall_sync(mach,fn)     __define_machine_initcall(mach,"7s",fn,7s)
+
+void generic_suspend_disable_irqs(void);
+void generic_suspend_enable_irqs(void);
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_MACHDEP_H */