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| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2017-12-22 08:12:40 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:17:58 -0500 |
| commit | cb5f1a52caf23414c65c6bc7eeefc281164ad092 (patch) | |
| tree | 4cd6a60b6fedb42623a96a511993f6c6f2f76cac /drivers/gpu/drm/ttm/ttm_page_alloc.c | |
| parent | 7b158d169190c53294238adae3718aff4838e50b (diff) | |
| download | lwn-cb5f1a52caf23414c65c6bc7eeefc281164ad092.tar.gz lwn-cb5f1a52caf23414c65c6bc7eeefc281164ad092.zip | |
drm/ttm: Allow page allocations w/o triggering OOM..
This to allow drivers to choose to avoid OOM invocation and handle
page allocation failures instead.
v2:
Remove extra new lines.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_page_alloc.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_page_alloc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index 2b12c55a3bff..c84da14311ec 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -741,6 +741,9 @@ out: if (ttm_flags & TTM_PAGE_FLAG_ZERO_ALLOC) gfp_flags |= __GFP_ZERO; + if (ttm_flags & TTM_PAGE_FLAG_NO_RETRY) + gfp_flags |= __GFP_RETRY_MAYFAIL; + /* ttm_alloc_new_pages doesn't reference pool so we can run * multiple requests in parallel. **/ @@ -893,6 +896,9 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags, if (flags & TTM_PAGE_FLAG_ZERO_ALLOC) gfp_flags |= __GFP_ZERO; + if (flags & TTM_PAGE_FLAG_NO_RETRY) + gfp_flags |= __GFP_RETRY_MAYFAIL; + if (flags & TTM_PAGE_FLAG_DMA32) gfp_flags |= GFP_DMA32; else |