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@@ -1,6 +1,6 @@
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-#ifdef __KERNEL__
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#ifndef _PPC64_MACHDEP_H
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#define _PPC64_MACHDEP_H
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+#ifdef __KERNEL__
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/*
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* This program is free software; you can redistribute it and/or
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@@ -16,6 +16,11 @@
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#include <asm/setup.h>
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+/* We export this macro for external modules like Alsa to know if
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+ * ppc_md.feature_call is implemented or not
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+ */
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+#define CONFIG_PPC_HAS_FEATURE_CALLS
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+
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struct pt_regs;
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struct pci_bus;
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struct device_node;
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@@ -39,6 +44,7 @@ struct smp_ops_t {
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#endif
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struct machdep_calls {
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+#ifdef CONFIG_PPC64
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void (*hpte_invalidate)(unsigned long slot,
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unsigned long va,
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int large,
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@@ -74,6 +80,7 @@ struct machdep_calls {
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void (*iommu_dev_setup)(struct pci_dev *dev);
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void (*iommu_bus_setup)(struct pci_bus *bus);
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void (*irq_bus_setup)(struct pci_bus *bus);
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+#endif
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int (*probe)(int platform);
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void (*setup_arch)(void);
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@@ -86,6 +93,7 @@ struct machdep_calls {
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void (*cpu_irq_down)(int secondary);
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/* PCI stuff */
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+ /* Called after scanning the bus, before allocating resources */
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void (*pcibios_fixup)(void);
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int (*pci_probe_mode)(struct pci_bus *);
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@@ -95,9 +103,13 @@ struct machdep_calls {
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void (*panic)(char *str);
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void (*cpu_die)(void);
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+ long (*time_init)(void); /* Optional, may be NULL */
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+
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int (*set_rtc_time)(struct rtc_time *);
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void (*get_rtc_time)(struct rtc_time *);
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- void (*get_boot_time)(struct rtc_time *);
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+ unsigned long (*get_boot_time)(void);
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+ unsigned char (*rtc_read_val)(int addr);
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+ void (*rtc_write_val)(int addr, unsigned char val);
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void (*calibrate_decr)(void);
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@@ -109,7 +121,7 @@ struct machdep_calls {
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ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
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ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
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ssize_t (*nvram_size)(void);
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- int (*nvram_sync)(void);
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+ void (*nvram_sync)(void);
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/* Exception handlers */
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void (*system_reset_exception)(struct pt_regs *regs);
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@@ -134,14 +146,100 @@ struct machdep_calls {
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pgprot_t vma_prot);
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/* Idle loop for this platform, leave empty for default idle loop */
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- int (*idle_loop)(void);
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+ void (*idle_loop)(void);
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- /* Function to enable pmcs for this platform, called once per cpu. */
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+ /* Function to enable performance monitor counters for this
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+ platform, called once per cpu. */
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void (*enable_pmcs)(void);
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+
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+#ifdef CONFIG_PPC32 /* XXX for now */
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+ /* Optional, may be NULL. */
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+ int (*show_cpuinfo)(struct seq_file *m);
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+ int (*show_percpuinfo)(struct seq_file *m, int i);
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+
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+ /* A general init function, called by ppc_init in init/main.c.
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+ May be NULL. */
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+ void (*init)(void);
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+
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+ void (*idle)(void);
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+ void (*power_save)(void);
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+
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+ void (*heartbeat)(void);
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+ unsigned long heartbeat_reset;
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+ unsigned long heartbeat_count;
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+
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+ unsigned long (*find_end_of_memory)(void);
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+ void (*setup_io_mappings)(void);
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+
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+ void (*early_serial_map)(void);
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+ void (*kgdb_map_scc)(void);
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+
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+ unsigned char (*nvram_read_val)(int addr);
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+ void (*nvram_write_val)(int addr, unsigned char val);
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+
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+ /*
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+ * optional PCI "hooks"
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+ */
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+
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+ /* Called after PPC generic resource fixup to perform
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+ machine specific fixups */
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+ void (*pcibios_fixup_resources)(struct pci_dev *);
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+
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+ /* Called for each PCI bus in the system when it's probed */
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+ void (*pcibios_fixup_bus)(struct pci_bus *);
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+
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+ /* Called when pci_enable_device() is called (initial=0) or
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+ * when a device with no assigned resource is found (initial=1).
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+ * Returns 0 to allow assignment/enabling of the device. */
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+ int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
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+
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+ /* For interrupt routing */
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+ unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
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+ int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
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+
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+ /* Called in indirect_* to avoid touching devices */
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+ int (*pci_exclude_device)(unsigned char, unsigned char);
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+
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+ /* Called at then very end of pcibios_init() */
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+ void (*pcibios_after_init)(void);
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+
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+ /* this is for modules, since _machine can be a define -- Cort */
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+ int ppc_machine;
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+
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+#ifdef CONFIG_KEXEC
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+ /* Called to shutdown machine specific hardware not already controlled
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+ * by other drivers.
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+ * XXX Should we move this one out of kexec scope?
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+ */
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+ void (*machine_shutdown)(void);
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+
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+ /* Called to do the minimal shutdown needed to run a kexec'd kernel
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+ * to run successfully.
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+ * XXX Should we move this one out of kexec scope?
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+ */
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+ void (*machine_crash_shutdown)(void);
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+
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+ /* Called to do what every setup is needed on image and the
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+ * reboot code buffer. Returns 0 on success.
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+ * Provide your own (maybe dummy) implementation if your platform
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+ * claims to support kexec.
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+ */
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+ int (*machine_kexec_prepare)(struct kimage *image);
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+
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+ /* Called to handle any machine specific cleanup on image */
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+ void (*machine_kexec_cleanup)(struct kimage *image);
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+
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+ /* Called to perform the _real_ kexec.
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+ * Do NOT allocate memory or fail here. We are past the point of
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+ * no return.
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+ */
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+ void (*machine_kexec)(struct kimage *image);
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+#endif /* CONFIG_KEXEC */
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+#endif /* CONFIG_PPC32 */
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};
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-extern int default_idle(void);
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-extern int native_idle(void);
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+extern void default_idle(void);
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+extern void native_idle(void);
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extern struct machdep_calls ppc_md;
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extern char cmd_line[COMMAND_LINE_SIZE];
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@@ -161,6 +259,13 @@ extern sys_ctrler_t sys_ctrler;
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#endif /* CONFIG_PPC_PMAC */
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+extern void setup_pci_ptrs(void);
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+
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+#ifdef CONFIG_SMP
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+/* Poor default implementations */
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+extern void __devinit smp_generic_give_timebase(void);
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+extern void __devinit smp_generic_take_timebase(void);
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+#endif /* CONFIG_SMP */
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/* Functions to produce codes on the leds.
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@@ -180,5 +285,5 @@ static inline void log_error(char *buf, unsigned int err_type, int fatal)
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ppc_md.log_error(buf, err_type, fatal);
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}
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-#endif /* _PPC64_MACHDEP_H */
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#endif /* __KERNEL__ */
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+#endif /* _PPC64_MACHDEP_H */
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Paul Mackerras