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| author | Logan Gunthorpe <[email protected]> | 2017-06-05 20:00:52 +0000 |
|---|---|---|
| committer | Jon Mason <[email protected]> | 2017-06-19 18:24:41 +0000 |
| commit | cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414 (patch) | |
| tree | 4236fb39fbd427165810e0980bd4fa34e0d20f6d /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | NTB: ntb_test: fix bug printing ntb_perf results (diff) | |
| download | kernel-cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414.tar.gz kernel-cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414.zip | |
ntb_transport: fix qp count bug
In cases where there are more mw's than spads/2-2, the mw count gets
reduced to match the limitation. ntb_transport also tries to ensure that
there are fewer qps than mws but uses the full mw count instead of
the reduced one. When this happens, the math in
'ntb_transport_setup_qp_mw' will get confused and result in a kernel
paging request bug.
This patch fixes the bug by reducing qp_count to the reduced mw count
instead of the full mw count.
Signed-off-by: Logan Gunthorpe <[email protected]>
Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Acked-by: Allen Hubbe <[email protected]>
Signed-off-by: Jon Mason <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions