diff options
| author | Zhu Lingshan <lingshan.zhu@amd.com> | 2024-06-04 16:49:34 +0800 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2024-06-20 15:47:34 +0200 |
| commit | 0ddd2ae586d28e521d37393364d989ce118802e0 (patch) | |
| tree | 67c314d73a0532ef2a161e3bba78636071dbfd65 /include/drm/drm_gpuvm.h | |
| parent | c1391205754f0ddab5f990cd0642d0fa8fc4c6b7 (diff) | |
drm/ttm: increase ttm pre-fault value to PMD size
ttm page fault handler ttm_bo_vm_fault_reserved() maps
TTM_BO_VM_NUM_PREFAULT more pages beforehand
due to the principle of locality.
However, on some platform the page faults are more costly, this
patch intends to increase the number of ttm pre-fault to relieve
the number of page faults.
When multiple levels of page table is supported, the new default
value would be the PMD size, similar to huge page.
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Reported-and-tested-by: Li Jingxiang <jingxiang.li@ecarxgroup.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604084934.225738-1-lingshan.zhu@amd.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'include/drm/drm_gpuvm.h')
0 files changed, 0 insertions, 0 deletions