---

yaml --- r: 136677 b: refs/heads/master c: 65a4e57 h: refs/heads/master i: 136675: 3264877 v: v3
git-mirror · Feb 5, 2009 · 936e238 · 936e238
1 parent 4e6a50e
commit 936e238
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Showing 7 changed files with 25 additions and 21 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d8106d2e24d54497233ca9cd97fa9bec807de458
+refs/heads/master: 65a4e574d2382d83f71b30ea92f86d2e40a6ef8d
diff --git a/trunk/arch/x86/include/asm/io_apic.h b/trunk/arch/x86/include/asm/io_apic.h
@@ -143,15 +143,6 @@ extern int noioapicreroute;
 /* 1 if the timer IRQ uses the '8259A Virtual Wire' mode */
 extern int timer_through_8259;
 
-static inline void disable_ioapic_setup(void)
-{
-#ifdef CONFIG_PCI
-	noioapicquirk = 1;
-	noioapicreroute = -1;
-#endif
-	skip_ioapic_setup = 1;
-}
-
 /*
  * If we use the IO-APIC for IRQ routing, disable automatic
  * assignment of PCI IRQ's.

diff --git a/trunk/arch/x86/kernel/apic.c b/trunk/arch/x86/kernel/apic.c
@@ -1138,9 +1138,7 @@ void __cpuinit setup_local_APIC(void)
 	int i, j;
 
 	if (disable_apic) {
-#ifdef CONFIG_X86_IO_APIC
-		disable_ioapic_setup();
-#endif
+		arch_disable_smp_support();
 		return;
 	}
 

diff --git a/trunk/arch/x86/kernel/io_apic.c b/trunk/arch/x86/kernel/io_apic.c
@@ -98,10 +98,19 @@ DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
 
 int skip_ioapic_setup;
 
+void arch_disable_smp_support(void)
+{
+#ifdef CONFIG_PCI
+	noioapicquirk = 1;
+	noioapicreroute = -1;
+#endif
+	skip_ioapic_setup = 1;
+}
+
 static int __init parse_noapic(char *str)
 {
 	/* disable IO-APIC */
-	disable_ioapic_setup();
+	arch_disable_smp_support();
 	return 0;
 }
 early_param("noapic", parse_noapic);

diff --git a/trunk/arch/x86/kernel/smpboot.c b/trunk/arch/x86/kernel/smpboot.c
@@ -1071,7 +1071,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 		printk(KERN_ERR "... forcing use of dummy APIC emulation."
 				"(tell your hw vendor)\n");
 		smpboot_clear_io_apic();
-		disable_ioapic_setup();
+		arch_disable_smp_support();
 		return -1;
 	}
 

diff --git a/trunk/include/linux/smp.h b/trunk/include/linux/smp.h
@@ -66,6 +66,12 @@ extern int __cpu_up(unsigned int cpunum);
  */
 extern void smp_cpus_done(unsigned int max_cpus);
 
+/*
+ * Callback to arch code if there's nosmp or maxcpus=0 on the
+ * boot command line:
+ */
+extern void arch_disable_smp_support(void);
+
 /*
  * Call a function on all other processors
  */

diff --git a/trunk/init/main.c b/trunk/init/main.c
@@ -136,14 +136,14 @@ unsigned int __initdata setup_max_cpus = NR_CPUS;
  * greater than 0, limits the maximum number of CPUs activated in
  * SMP mode to <NUM>.
  */
-#ifndef CONFIG_X86_IO_APIC
-static inline void disable_ioapic_setup(void) {};
-#endif
+
+void __weak arch_disable_smp_support(void) { }
 
 static int __init nosmp(char *str)
 {
 	setup_max_cpus = 0;
-	disable_ioapic_setup();
+	arch_disable_smp_support();
+
 	return 0;
 }
 
@@ -153,14 +153,14 @@ static int __init maxcpus(char *str)
 {
 	get_option(&str, &setup_max_cpus);
 	if (setup_max_cpus == 0)
-		disable_ioapic_setup();
+		arch_disable_smp_support();
 
 	return 0;
 }
 
 early_param("maxcpus", maxcpus);
 #else
-#define setup_max_cpus NR_CPUS
+const unsigned int setup_max_cpus = NR_CPUS;
 #endif
 
 /*