x86, VisWS: turn into generic arch, add early quirks to default architectures
authorIngo Molnar <mingo@elte.hu>
Thu, 10 Jul 2008 13:48:48 +0000 (15:48 +0200)
committerIngo Molnar <mingo@elte.hu>
Thu, 10 Jul 2008 16:55:41 +0000 (18:55 +0200)
add early quirk support to the generic architecture code.

this allows VISWS to be supported by the generic code and allows us
to remove the VISWS subarch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/mach-default/setup.c

index 2f5e277686b8ef3e8325e119106ee292bed016be..b8054c3ffce376d2e2440af1dc132323efe239f2 100644 (file)
 #include <asm/e820.h>
 #include <asm/setup.h>
 
+/*
+ * Any quirks to be performed to initialize timers/irqs/etc?
+ */
+int (*arch_time_init_quirk)(void);
+int (*arch_pre_intr_init_quirk)(void);
+int (*arch_intr_init_quirk)(void);
+int (*arch_trap_init_quirk)(void);
+
 #ifdef CONFIG_HOTPLUG_CPU
 #define DEFAULT_SEND_IPI       (1)
 #else
@@ -29,6 +37,10 @@ int no_broadcast=DEFAULT_SEND_IPI;
  **/
 void __init pre_intr_init_hook(void)
 {
+       if (arch_pre_intr_init_quirk) {
+               if (arch_pre_intr_init_quirk())
+                       return;
+       }
        init_ISA_irqs();
 }
 
@@ -52,6 +64,10 @@ static struct irqaction irq2 = {
  **/
 void __init intr_init_hook(void)
 {
+       if (arch_intr_init_quirk) {
+               if (arch_intr_init_quirk())
+                       return;
+       }
 #ifdef CONFIG_X86_LOCAL_APIC
        apic_intr_init();
 #endif
@@ -81,6 +97,10 @@ void __init pre_setup_arch_hook(void)
  **/
 void __init trap_init_hook(void)
 {
+       if (arch_trap_init_quirk) {
+               if (arch_trap_init_quirk())
+                       return;
+       }
 }
 
 static struct irqaction irq0  = {
@@ -99,6 +119,16 @@ static struct irqaction irq0  = {
  **/
 void __init time_init_hook(void)
 {
+       if (arch_time_init_quirk) {
+               /*
+                * A nonzero return code does not mean failure, it means
+                * that the architecture quirk does not want any
+                * generic (timer) setup to be performed after this:
+                */
+               if (arch_time_init_quirk())
+                       return;
+       }
+
        irq0.mask = cpumask_of_cpu(0);
        setup_irq(0, &irq0);
 }