Messages in this thread Patch in this message | | | Date | Thu, 10 Jul 2008 11:16:41 -0700 | From | Suresh Siddha <> | Subject | [patch 07/26] x64, x2apic/intr-remap: move IOMMU_WAIT_OP() macro to intel-iommu.h |
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move IOMMU_WAIT_OP() macro to header file.
This will be used by both DMA-remapping and Intr-remapping.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> ---
Index: tree-x86/drivers/pci/intel-iommu.c =================================================================== --- tree-x86.orig/drivers/pci/intel-iommu.c 2008-07-10 09:51:51.000000000 -0700 +++ tree-x86/drivers/pci/intel-iommu.c 2008-07-10 09:51:59.000000000 -0700 @@ -49,8 +49,6 @@ #define DEFAULT_DOMAIN_ADDRESS_WIDTH 48 -#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */ - #define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1) @@ -486,19 +484,6 @@ return 0; } -#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ -{\ - cycles_t start_time = get_cycles();\ - while (1) {\ - sts = op (iommu->reg + offset);\ - if (cond)\ - break;\ - if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\ - panic("DMAR hardware is malfunctioning\n");\ - cpu_relax();\ - }\ -} - static void iommu_set_root_entry(struct intel_iommu *iommu) { void *addr; Index: tree-x86/drivers/pci/intel-iommu.h =================================================================== --- tree-x86.orig/drivers/pci/intel-iommu.h 2008-07-10 09:51:57.000000000 -0700 +++ tree-x86/drivers/pci/intel-iommu.h 2008-07-10 09:51:59.000000000 -0700 @@ -177,6 +177,21 @@ #define dma_frcd_source_id(c) (c & 0xffff) #define dma_frcd_page_addr(d) (d & (((u64)-1) << 12)) /* low 64 bit */ +#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */ + +#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ +{\ + cycles_t start_time = get_cycles();\ + while (1) {\ + sts = op (iommu->reg + offset);\ + if (cond)\ + break;\ + if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\ + panic("DMAR hardware is malfunctioning\n");\ + cpu_relax();\ + }\ +} + struct intel_iommu { void __iomem *reg; /* Pointer to hardware regs, virtual addr */ u64 cap; --
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