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| author | Oak Zeng <Oak.Zeng@amd.com> | 2020-06-22 19:27:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-23 22:59:22 -0400 |
| commit | 6d909c5da0166d62ffc656990fe1fff9ae66b37f (patch) | |
| tree | 5e3d8aae01e5e68b9fdf5d7de6beb00ed38c69fc /drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | |
| parent | 2f669734f383fe4c458e6ffcfa5de5a296660715 (diff) | |
| download | lwn-6d909c5da0166d62ffc656990fe1fff9ae66b37f.tar.gz lwn-6d909c5da0166d62ffc656990fe1fff9ae66b37f.zip | |
drm/amdkfd: Add kernel parameter to stop queue eviction on vm fault
This is to keep wavefront context for debug purpose
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 7294a8062a93..5179d5f032ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -751,6 +751,13 @@ bool no_system_mem_limit; module_param(no_system_mem_limit, bool, 0644); MODULE_PARM_DESC(no_system_mem_limit, "disable system memory limit (false = default)"); +/** + * DOC: no_queue_eviction_on_vm_fault (int) + * If set, process queues will not be evicted on gpuvm fault. This is to keep the wavefront context for debugging (0 = queue eviction, 1 = no queue eviction). The default is 0 (queue eviction). + */ +int amdgpu_no_queue_eviction_on_vm_fault = 0; +MODULE_PARM_DESC(no_queue_eviction_on_vm_fault, "No queue eviction on VM fault (0 = queue eviction, 1 = no queue eviction)"); +module_param_named(no_queue_eviction_on_vm_fault, amdgpu_no_queue_eviction_on_vm_fault, int, 0444); #endif /** |