x86: Replace ARCH_SETUP by a proper x86_init_ops

ARCH_SETUP is a horrible leftover from the old arch/i386 mach support
code. It still has a lonely user in xen. Move it to x86_init_ops.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

7 files changed, 15 insertions, 9 deletions

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 6a07af432c81..22cb3872f6d1 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -24,7 +24,6 @@ static inline void load_sp0(struct tss_struct *tss,
         PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
 }
 
-#define ARCH_SETUP                      pv_init_ops.arch_setup();
 static inline unsigned long get_wallclock(void)
 {
         return PVOP_CALL0(unsigned long, pv_time_ops.get_wallclock);
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 25922afb6347..a05085e5fdbb 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -80,7 +80,6 @@ struct pv_init_ops {
                           unsigned long addr, unsigned len);
 
         /* Basic arch-specific setup */
-        void (*arch_setup)(void);
         void (*post_allocator_init)(void);
 
         /* Print a banner to identify the environment */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 07c37bd879f8..ceffbf358fc0 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -57,6 +57,14 @@ struct x86_init_irqs {
 };
 
 /**
+ * struct x86_init_oem - oem platform specific customizing functions
+ * @arch_setup:                 platform specific architecure setup
+ */
+struct x86_init_oem {
+        void (*arch_setup)(void);
+};
+
+/**
  * struct x86_init_ops - functions for platform specific setup
  *
  */
@@ -64,6 +72,7 @@ struct x86_init_ops {
         struct x86_init_resources       resources;
         struct x86_init_mpparse         mpparse;
         struct x86_init_irqs            irqs;
+        struct x86_init_oem             oem;
 };
 
 extern struct x86_init_ops x86_init;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index d76bfbec71ae..80275ef1651a 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -311,7 +311,6 @@ struct pv_info pv_info = {
 struct pv_init_ops pv_init_ops = {
         .patch = native_patch,
         .banner = default_banner,
-        .arch_setup = paravirt_nop,
 };
 
 struct pv_time_ops pv_time_ops = {
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index bf3b87f1f7db..d12aa82c9c32 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -108,10 +108,6 @@
 #include <asm/numa_64.h>
 #endif
 
-#ifndef ARCH_SETUP
-#define ARCH_SETUP
-#endif
-
 /*
  * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
  * The direct mapping extends to max_pfn_mapped, so that we can directly access
@@ -750,7 +746,7 @@ void __init setup_arch(char **cmdline_p)
         }
 #endif
 
-        ARCH_SETUP
+        x86_init.oem.arch_setup();
 
         setup_memory_map();
         parse_setup_data();
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 9f2b775dc728..fa2d849be35a 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -42,4 +42,8 @@ struct __initdata x86_init_ops x86_init = {
                 .intr_init              = native_init_IRQ,
                 .trap_init              = x86_init_noop,
         },
+
+        .oem = {
+                .arch_setup             = x86_init_noop,
+        },
 };
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 50b20c64f0bd..73c7b1d610f3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -841,7 +841,6 @@ static const struct pv_init_ops xen_init_ops __initdata = {
         .patch = xen_patch,
 
         .banner = xen_banner,
-        .arch_setup = xen_arch_setup,
         .post_allocator_init = xen_post_allocator_init,
 };
 
@@ -982,6 +981,7 @@ asmlinkage void __init xen_start_kernel(void)
         pv_mmu_ops = xen_mmu_ops;
 
         x86_init.resources.memory_setup = xen_memory_setup;
+        x86_init.oem.arch_setup = xen_arch_setup;
 
 #ifdef CONFIG_X86_64
         /*