---

yaml --- r: 169940 b: refs/heads/master c: e79c65a h: refs/heads/master v: v3
git-mirror · Nov 16, 2009 · 38a4a60 · 38a4a60
1 parent bcd24c8
commit 38a4a60
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Showing 3 changed files with 12 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 200a9ae2801bc725f2c41ab13f6e0fb1610d2fb6
+refs/heads/master: e79c65a97c01d5da4317f44f9f98b3814e091a43
diff --git a/trunk/arch/x86/include/asm/apicdef.h b/trunk/arch/x86/include/asm/apicdef.h
@@ -11,6 +11,12 @@
 #define IO_APIC_DEFAULT_PHYS_BASE	0xfec00000
 #define	APIC_DEFAULT_PHYS_BASE		0xfee00000
 
+/*
+ * This is the IO-APIC register space as specified
+ * by Intel docs:
+ */
+#define IO_APIC_SLOT_SIZE		1024
+
 #define	APIC_ID		0x20
 
 #define	APIC_LVR	0x30

diff --git a/trunk/arch/x86/kernel/apic/io_apic.c b/trunk/arch/x86/kernel/apic/io_apic.c
@@ -4100,18 +4100,17 @@ void __init ioapic_init_mappings(void)
 #ifdef CONFIG_X86_32
 fake_ioapic_page:
 #endif
-			ioapic_phys = (unsigned long)
-				alloc_bootmem_pages(PAGE_SIZE);
+			ioapic_phys = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
 			ioapic_phys = __pa(ioapic_phys);
 		}
 		set_fixmap_nocache(idx, ioapic_phys);
-		apic_printk(APIC_VERBOSE,
-			    "mapped IOAPIC to %08lx (%08lx)\n",
-			    __fix_to_virt(idx), ioapic_phys);
+		apic_printk(APIC_VERBOSE, "mapped IOAPIC to %08lx (%08lx)\n",
+			__fix_to_virt(idx) + (ioapic_phys & ~PAGE_MASK),
+			ioapic_phys);
 		idx++;
 
 		ioapic_res->start = ioapic_phys;
-		ioapic_res->end = ioapic_phys + PAGE_SIZE-1;
+		ioapic_res->end = ioapic_phys + IO_APIC_SLOT_SIZE - 1;
 		ioapic_res++;
 	}
 }