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| author | Jacob Pan <jacob.jun.pan@linux.intel.com> | 2020-01-02 03:18:08 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-01-07 16:05:57 +0300 |
| commit | 59a623374dc38f7724457c59753c3f02fac6aed6 (patch) | |
| tree | f4fd6a861937f99312e2544c1366438df5ed0ef1 /drivers/iommu/intel-pasid.c | |
| parent | 39d630e332144028f56abba83d94291978e72df1 (diff) | |
| download | linux-59a623374dc38f7724457c59753c3f02fac6aed6.tar.xz | |
iommu/vt-d: Replace Intel specific PASID allocator with IOASID
Make use of generic IOASID code to manage PASID allocation,
free, and lookup. Replace Intel specific code.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-pasid.c')
| -rw-r--r-- | drivers/iommu/intel-pasid.c | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c index 732bfee228df..3cb569e76642 100644 --- a/drivers/iommu/intel-pasid.c +++ b/drivers/iommu/intel-pasid.c @@ -26,42 +26,6 @@ */ static DEFINE_SPINLOCK(pasid_lock); u32 intel_pasid_max_id = PASID_MAX; -static DEFINE_IDR(pasid_idr); - -int intel_pasid_alloc_id(void *ptr, int start, int end, gfp_t gfp) -{ - int ret, min, max; - - min = max_t(int, start, PASID_MIN); - max = min_t(int, end, intel_pasid_max_id); - - WARN_ON(in_interrupt()); - idr_preload(gfp); - spin_lock(&pasid_lock); - ret = idr_alloc(&pasid_idr, ptr, min, max, GFP_ATOMIC); - spin_unlock(&pasid_lock); - idr_preload_end(); - - return ret; -} - -void intel_pasid_free_id(int pasid) -{ - spin_lock(&pasid_lock); - idr_remove(&pasid_idr, pasid); - spin_unlock(&pasid_lock); -} - -void *intel_pasid_lookup_id(int pasid) -{ - void *p; - - spin_lock(&pasid_lock); - p = idr_find(&pasid_idr, pasid); - spin_unlock(&pasid_lock); - - return p; -} /* * Per device pasid table management: |