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Diffstat (limited to 'include/asm-x86_64/mpspec.h')
-rw-r--r--include/asm-x86_64/mpspec.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h
index f267e10c023d..6f8a17d105ab 100644
--- a/include/asm-x86_64/mpspec.h
+++ b/include/asm-x86_64/mpspec.h
@@ -16,7 +16,7 @@
/*
* A maximum of 255 APICs with the current APIC ID architecture.
*/
-#define MAX_APICS 128
+#define MAX_APICS 255
struct intel_mp_floating
{
@@ -157,7 +157,8 @@ struct mpc_config_lintsrc
*/
#define MAX_MP_BUSSES 256
-#define MAX_IRQ_SOURCES 256
+/* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */
+#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
enum mp_bustype {
MP_BUS_ISA = 1,
MP_BUS_EISA,
@@ -172,7 +173,7 @@ extern int smp_found_config;
extern void find_smp_config (void);
extern void get_smp_config (void);
extern int nr_ioapics;
-extern int apic_version [MAX_APICS];
+extern unsigned char apic_version [MAX_APICS];
extern int mp_irq_entries;
extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
extern int mpc_default_type;