diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2021-06-10 18:39:56 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-15 17:25:41 -0400 |
| commit | 5a75ea56e36937d7d01545c53fae91e234ea0de6 (patch) | |
| tree | aa961556c6a9070909405505b7b839aa2cef91bb /drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c | |
| parent | d0414a834c0d6c92c9a6db504e196831d118ab54 (diff) | |
drm/amdkfd: Disable SVM per GPU, not per process
When some GPUs don't support SVM, don't disabe it for the entire process.
That would be inconsistent with the information the process got from the
topology, which indicates SVM support per GPU.
Instead disable SVM support only for the unsupported GPUs. This is done
by checking any per-device attributes against the bitmap of supported
GPUs. Also use the supported GPU bitmap to initialize access bitmaps for
new SVM address ranges.
Don't handle recoverable page faults from unsupported GPUs. (I don't
think there will be unsupported GPUs that can generate recoverable page
faults. But better safe than sorry.)
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c index 91c50739b756..a9b329f0f862 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c @@ -405,10 +405,6 @@ int kfd_init_apertures(struct kfd_process *process) case CHIP_POLARIS12: case CHIP_VEGAM: kfd_init_apertures_vi(pdd, id); - /* VI GPUs cannot support SVM with only - * 40 bits of virtual address space. - */ - process->svm_disabled = true; break; case CHIP_VEGA10: case CHIP_VEGA12: |