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authorxinhui pan <xinhui.pan@amd.com>2021-05-21 11:31:12 +0300
committerChristian König <christian.koenig@amd.com>2021-05-26 16:02:47 +0300
commit35f819d218035ddfbc71e7cf62a4849231701e58 (patch)
treea273ae04385432af64e9e2dbd9112f007cb32116 /drivers/gpu/drm/ttm/ttm_device.c
parent7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2 (diff)
downloadlinux-35f819d218035ddfbc71e7cf62a4849231701e58.tar.xz
drm/ttm: Skip swapout if ttm object is not populated
Swapping a ttm object which has no backend pages makes no sense. Suggested-by: Christian König <christian.koenig@amd.com> Signed-off-by: xinhui pan <xinhui.pan@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210521083112.33176-1-xinhui.pan@amd.com CC: stable@kernel.org Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_device.c')
-rw-r--r--drivers/gpu/drm/ttm/ttm_device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
index 510e3e001dab..a1dcf7d55c90 100644
--- a/drivers/gpu/drm/ttm/ttm_device.c
+++ b/drivers/gpu/drm/ttm/ttm_device.c
@@ -145,7 +145,7 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx,
list_for_each_entry(bo, &man->lru[j], lru) {
uint32_t num_pages;
- if (!bo->ttm ||
+ if (!bo->ttm || !ttm_tt_is_populated(bo->ttm) ||
bo->ttm->page_flags & TTM_PAGE_FLAG_SG ||
bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)
continue;