[PATCH] powerpc: Kill _machine and hard-coded platform numbers

[mirror_ubuntu-artful-kernel.git] / include / asm-powerpc / machdep.h

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 758e47fe8c1ec99469d30cce55d16f7f56b924f2..5ed8476807542049dad3143916d18080902f6642 100644 (file)
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -47,6 +47,7 @@ struct smp_ops_t {
 #endif
 
 struct machdep_calls {
+       char            *name;
 #ifdef CONFIG_PPC64
        void            (*hpte_invalidate)(unsigned long slot,
                                           unsigned long va,
@@ -85,9 +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. */
@@ -207,8 +208,6 @@ 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 */
 
        /* Called to shutdown machine specific hardware not already controlled
@@ -244,7 +243,26 @@ struct machdep_calls {
 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) 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