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In scalable mode, pasid structure is a two level table with
a pasid directory table and a pasid table. Any pasid entry
can be identified by a pasid value in below way.
1
9 6 5 0
.-----------------------.-------.
| PASID | |
'-----------------------'-------' .-------------.
| | | |
| | | |
| | | |
| .-----------. | .-------------.
| | | |----->| PASID Entry |
| | | | '-------------'
| | | |Plus | |
| .-----------. | | |
|---->| DIR Entry |-------->| |
| '-----------' '-------------'
.---------. |Plus | |
| Context | | | |
| Entry |------->| |
'---------' '-----------'
This changes the pasid table APIs to support scalable mode
PASID directory and PASID table. It also adds a helper to
get the PASID table entry according to the pasid value.
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Sanjay Kumar <sanjay.k.kumar@intel.com>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>