X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fmachdep.h;h=0f9254c18914d6c6afad891d62dc87781cbe3f85;hb=60e04a5c533785c23ce6b76a6e5058328fe68edb;hp=c011abb8b600f1248fdfed9bb4ff9bbbd88ef87b;hpb=3be4bb06b53df2c0a760eeaa5f53448faddedfca;p=powerpc.git

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index c011abb8b6..0f9254c189 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -27,6 +27,9 @@ struct device_node;
 struct iommu_table;
 struct rtc_time;
 struct file;
+#ifdef CONFIG_KEXEC
+struct kimage;
+#endif
 
 #ifdef CONFIG_SMP
 struct smp_ops_t {
@@ -44,6 +47,7 @@ struct smp_ops_t {
 #endif
 
 struct machdep_calls {
+	char		*name;
 #ifdef CONFIG_PPC64
 	void            (*hpte_invalidate)(unsigned long slot,
 					   unsigned long va,
@@ -82,9 +86,9 @@ struct machdep_calls {
 	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
+#endif /* CONFIG_PPC64 */
 
-	int		(*probe)(int platform);
+	int		(*probe)(void);
 	void		(*setup_arch)(void);
 	void		(*init_early)(void);
 	/* Optional, may be NULL. */
@@ -131,7 +135,7 @@ struct machdep_calls {
 	void		(*nvram_sync)(void);
 
 	/* Exception handlers */
-	void		(*system_reset_exception)(struct pt_regs *regs);
+	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
@@ -155,6 +159,12 @@ struct machdep_calls {
 	/* 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);
@@ -167,13 +177,6 @@ struct machdep_calls {
 	   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);
@@ -205,21 +208,19 @@ struct machdep_calls {
 	/* 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;
+#endif /* CONFIG_PPC32 */
 
-#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);
 
+#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)(void);
+	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.
@@ -237,13 +238,35 @@ struct machdep_calls {
 	 */
 	void (*machine_kexec)(struct kimage *image);
 #endif /* CONFIG_KEXEC */
-#endif /* CONFIG_PPC32 */
 };
 
-extern void default_idle(void);
-extern void native_idle(void);
+extern void power4_idle(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