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authorWeidong Han <weidong.han@intel.com>2009-04-17 10:42:14 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-19 10:21:43 +0200
commit937582382c71b75b29fbb92615629494e1a05ac0 (patch)
treee73af8d10d388fcc78d19534611db66233907a9e /arch/x86/include/asm/apic.h
parentx86, intr-remap: fix ack for interrupt remapping (diff)
downloadlinux-937582382c71b75b29fbb92615629494e1a05ac0.tar.xz
linux-937582382c71b75b29fbb92615629494e1a05ac0.zip
x86, intr-remap: enable interrupt remapping early
Currently, when x2apic is not enabled, interrupt remapping will be enabled in init_dmars(), where it is too late to remap ioapic interrupts, that is, ioapic interrupts are really in compatibility mode, not remappable mode. This patch always enables interrupt remapping before ioapic setup, it guarantees all interrupts will be remapped when interrupt remapping is enabled. Thus it doesn't need to set the compatibility interrupt bit. [ Impact: refactor intr-remap init sequence, enable fuller remap mode ] Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Weidong Han <weidong.han@intel.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Cc: iommu@lists.linux-foundation.org Cc: allen.m.kay@intel.com Cc: fenghua.yu@intel.com LKML-Reference: <1239957736-6161-4-git-send-email-weidong.han@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index d4cb7e590c06..fbdd65446c7a 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -169,7 +169,6 @@ static inline u64 native_x2apic_icr_read(void)
extern int x2apic, x2apic_phys;
extern void check_x2apic(void);
extern void enable_x2apic(void);
-extern void enable_IR_x2apic(void);
extern void x2apic_icr_write(u32 low, u32 id);
static inline int x2apic_enabled(void)
{
@@ -190,18 +189,18 @@ static inline void check_x2apic(void)
static inline void enable_x2apic(void)
{
}
-static inline void enable_IR_x2apic(void)
-{
-}
static inline int x2apic_enabled(void)
{
return 0;
}
#define x2apic 0
+#define x2apic_preenabled 0
#endif
+extern void enable_IR_x2apic(void);
+
extern int get_physical_broadcast(void);
extern void apic_disable(void);