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| author | Lizhi Hou <lizhi.hou@amd.com> | 2026-01-26 11:30:01 -0800 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2026-03-12 12:37:56 -0700 |
| commit | ece3e8980907818c72dc9faa7bbaf40488ef1824 (patch) | |
| tree | 8605d632c2eb90b59096fb2ee04f79ad16358f33 /tools/perf/scripts/python | |
| parent | d11ac9043435cf1ddf1abc59fa774eb6c0ca4e51 (diff) | |
accel/amdxdna: Allow forcing IOVA-based DMA via module parameter
The amdxdna driver normally performs DMA using userspace virtual address
plus PASID. For debugging and validation purposes, add a module parameter,
force_iova, to force DMA to go through IOMMU IOVA mapping.
When force_iova=1 is set, the driver will allocate and map DMA buffers
using IOVA.
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260126193001.1400545-1-lizhi.hou@amd.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions