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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2021-01-14 10:04:00 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-01-28 11:32:13 +0100 |
| commit | f2dd871799ba5d80f95f9bdbc0e60d390e1bcd22 (patch) | |
| tree | f910ca52ab2770dba8f30937f258f398a86a7241 /mm/kmemleak.c | |
| parent | iommu/vt-d: Consolidate duplicate cache invaliation code (diff) | |
| download | linux-f2dd871799ba5d80f95f9bdbc0e60d390e1bcd22.tar.xz linux-f2dd871799ba5d80f95f9bdbc0e60d390e1bcd22.zip | |
iommu/vt-d: Add qi_submit trace event
This adds a new trace event to track the submissions of requests to the
invalidation queue. This event will provide the information like:
- IOMMU name
- Invalidation type
- Descriptor raw data
A sample output like:
| qi_submit: iotlb_inv dmar1: 0x100e2 0x0 0x0 0x0
| qi_submit: dev_tlb_inv dmar1: 0x1000000003 0x7ffffffffffff001 0x0 0x0
| qi_submit: iotlb_inv dmar2: 0x800f2 0xf9a00005 0x0 0x0
This will be helpful for queued invalidation related debugging.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210114090400.736104-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'mm/kmemleak.c')
0 files changed, 0 insertions, 0 deletions