| Date | Wed, 07 May 2014 15:44:11 -0000 | From | Thomas Gleixner <> | Subject | [patch 12/32] 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> Cc: x86@kernel.org Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org Cc: Joerg Roedel <joro@8bytes.org> Cc: iommu@lists.linux-foundation.org --- arch/ia64/include/asm/irq_remapping.h | 2 ++ arch/x86/include/asm/irq_remapping.h | 3 +++ drivers/iommu/dmar.c | 6 +++--- 3 files changed, 8 insertions(+), 3 deletions(-)
Index: tip/arch/ia64/include/asm/irq_remapping.h =================================================================== --- tip.orig/arch/ia64/include/asm/irq_remapping.h +++ tip/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 Index: tip/arch/x86/include/asm/irq_remapping.h =================================================================== --- tip.orig/arch/x86/include/asm/irq_remapping.h +++ tip/arch/x86/include/asm/irq_remapping.h @@ -58,6 +58,9 @@ extern bool setup_remapped_irq(int irq, void irq_remap_modify_chip_defaults(struct irq_chip *chip); +#define dmar_alloc_hwirq() irq_alloc_hwirq(-1) +#define dmar_free_hwirq irq_free_hwirq + #else /* CONFIG_IRQ_REMAP */ static inline void setup_irq_remapping_ops(void) { } Index: tip/drivers/iommu/dmar.c =================================================================== --- tip.orig/drivers/iommu/dmar.c +++ tip/drivers/iommu/dmar.c @@ -994,7 +994,7 @@ static void free_iommu(struct intel_iomm if (iommu->irq) { free_irq(iommu->irq, iommu); irq_set_handler_data(iommu->irq, NULL); - destroy_irq(iommu->irq); + dmar_free_hwirq(iommu->irq); } if (iommu->qi) { @@ -1550,7 +1550,7 @@ int dmar_set_interrupt(struct intel_iomm if (iommu->irq) return 0; - irq = create_irq(); + irq = dmar_alloc_hwirq(); if (irq <= 0) { pr_err("IOMMU: no free vectors\n"); return -EINVAL; @@ -1563,7 +1563,7 @@ int dmar_set_interrupt(struct intel_iomm if (ret) { irq_set_handler_data(irq, NULL); iommu->irq = 0; - destroy_irq(irq); + dmar_free_hwirq(irq); return ret; }
|