powerpc: Merge machdep.h

A few things change for consistency between ppc32 and ppc64:
idle functions return void; *_get_boot_time functions return
unsigned long (i.e. time_t) rather than filling in a struct rtc_time
(since that's useful to the callers and easier for pmac to
generate); *_get_rtc_time and *_set_rtc_time functions take
a struct rtc_time; irq_canonicalize is gone; nvram_sync returns
void.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 289 insertions, 0 deletions

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
new file mode 100644
index 000000000000..f060553b997a
--- /dev/null
+++ b/include/asm-powerpc/machdep.h
@@ -0,0 +1,289 @@
+#ifndef _PPC64_MACHDEP_H
+#define _PPC64_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);
+#endif
+
+        int             (*probe)(int platform);
+        void            (*setup_arch)(void);
+        void            (*init_early)(void);
+        /* Optional, may be NULL. */
+        void            (*get_cpuinfo)(struct seq_file *m);
+
+        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);
+
+        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 offset,
+                                                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 */
+        /* Optional, may be NULL. */
+        int             (*show_cpuinfo)(struct seq_file *m);
+        int             (*show_percpuinfo)(struct seq_file *m, int i);
+        
+        /* 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;
+
+        unsigned long   (*find_end_of_memory)(void);
+        void            (*setup_io_mappings)(void);
+
+        void            (*early_serial_map)(void);
+        void            (*kgdb_map_scc)(void);
+
+        unsigned char   (*nvram_read_val)(int addr);
+        void            (*nvram_write_val)(int addr, unsigned char val);
+
+        /*
+         * 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 /* _PPC64_MACHDEP_H */