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authorThomas Gleixner <tglx@linutronix.de>2014-05-07 19:44:11 +0400
committerThomas Gleixner <tglx@linutronix.de>2014-05-16 16:05:19 +0400
commita553b142b8effbfcbba24ebbf8c07a1a86d32ce6 (patch)
tree3ee84a080f33514d8babcb29480b3d266fb449cf /arch
parentaa5125a45568f8f666f6d2f224fe8ab261b1069e (diff)
downloadlinux-a553b142b8effbfcbba24ebbf8c07a1a86d32ce6.tar.xz
iommu: dmar: Provide arch specific irq allocation
ia64 and x86 share this driver. x86 is moving to a different irq allocation and ia64 keeps its private irq_create/destroy stuff. Use macros to redirect to one or the other. Yes, macros to avoid include hell. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Grant Likely <grant.likely@linaro.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Joerg Roedel <joro@8bytes.org> Cc: x86@kernel.org Cc: linux-ia64@vger.kernel.org Cc: iommu@lists.linux-foundation.org Link: http://lkml.kernel.org/r/20140507154336.372289825@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/include/asm/irq_remapping.h2
-rw-r--r--arch/x86/include/asm/irq_remapping.h3
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/irq_remapping.h b/arch/ia64/include/asm/irq_remapping.h
index a8687b1d8906..e3b3556e2e1b 100644
--- a/arch/ia64/include/asm/irq_remapping.h
+++ b/arch/ia64/include/asm/irq_remapping.h
@@ -1,4 +1,6 @@
#ifndef __IA64_INTR_REMAPPING_H
#define __IA64_INTR_REMAPPING_H
#define irq_remapping_enabled 0
+#define dmar_alloc_hwirq create_irq
+#define dmar_free_hwirq destroy_irq
#endif
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
index d806b228d2c0..b7747c4c2cf2 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -103,4 +103,7 @@ static inline bool setup_remapped_irq(int irq,
}
#endif /* CONFIG_IRQ_REMAP */
+#define dmar_alloc_hwirq() irq_alloc_hwirq(-1)
+#define dmar_free_hwirq irq_free_hwirq
+
#endif /* __X86_IRQ_REMAPPING_H */