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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-19 15:09:05 +1000 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-19 15:09:05 +1000 |
| commit | c203e45f069af47ca7623e4dcd8c00bfba2722e4 (patch) | |
| tree | 4563115b6565dcfd97015c1c9366fb3d07cabf19 /drivers/pci/intel-iommu.c | |
| parent | a94477da38e0b261a7ecea71f4c95a3bcd5be69c (diff) | |
| parent | b8291ad07a7f3b5b990900f0001198ac23ba893e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'drivers/pci/intel-iommu.c')
| -rw-r--r-- | drivers/pci/intel-iommu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 1fd8bb765702..66c0fd21894b 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -49,7 +49,7 @@ #define DEFAULT_DOMAIN_ADDRESS_WIDTH 48 -#define DMAR_OPERATION_TIMEOUT (HZ*60) /* 1m */ +#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */ #define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1) @@ -490,12 +490,12 @@ static int iommu_alloc_root_entry(struct intel_iommu *iommu) #define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ {\ - unsigned long start_time = jiffies;\ + cycles_t start_time = get_cycles();\ while (1) {\ sts = op (iommu->reg + offset);\ if (cond)\ break;\ - if (time_after(jiffies, start_time + DMAR_OPERATION_TIMEOUT))\ + if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\ panic("DMAR hardware is malfunctioning\n");\ cpu_relax();\ }\ |