diff options
| author | Suravee Suthikulpanit <[email protected]> | 2014-03-05 18:54:18 -0600 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2014-03-24 16:45:59 +0100 |
| commit | a919a018cccf999aa56d7f9adeae0525b01b7434 (patch) | |
| tree | 2dc30421a1fff7a9bb26d0209aff36ba39a4998d /tools/perf/util/trace-event-scripting.c | |
| parent | e8d2d82d4a73f37b3270e4fd19ba83e48b589656 (diff) | |
iommu/amd: Fix logic to determine and checking max PASID
In reality, the spec can only support 16-bit PASID since
INVALIDATE_IOTLB_PAGES and COMPLETE_PPR_REQUEST commands only allow 16-bit
PASID. So, we updated the PASID_MASK accordingly and invoke BUG_ON
if the hardware is reporting PASmax more than 16-bit.
Besides, max PASID is defined as ((2^(PASmax+1)) - 1). The current does not
determine this correctly.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
Tested-by: Jay Cornwall <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions