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| author | Thomas Hellstrom <thellstrom@vmware.com> | 2013-12-21 22:23:02 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-12-23 10:33:07 +1000 |
| commit | 2e6d8b469b8000b4aa9b95dfcebd89eafae3e8cf (patch) | |
| tree | 5613851f2728a14177a9e48c26e07837ebec3bcb | |
| parent | 488574dbc47e0f570330c8c2b56ae299c28ade14 (diff) | |
| download | linux-riscv-2e6d8b469b8000b4aa9b95dfcebd89eafae3e8cf.tar.gz linux-riscv-2e6d8b469b8000b4aa9b95dfcebd89eafae3e8cf.tar.bz2 linux-riscv-2e6d8b469b8000b4aa9b95dfcebd89eafae3e8cf.zip | |
drm/ttm: Fix swapin regression
Commit "drm/ttm: Don't move non-existing data" didn't take the
swapped-out corner case into account. This patch corrects that.
Fixes blank screen after attempted suspend / hibernate on vmwgfx.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 15b86a94949d..406152152315 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -353,7 +353,8 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, * Don't move nonexistent data. Clear destination instead. */ if (old_iomap == NULL && - (ttm == NULL || ttm->state == tt_unpopulated)) { + (ttm == NULL || (ttm->state == tt_unpopulated && + !(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)))) { memset_io(new_iomap, 0, new_mem->num_pages*PAGE_SIZE); goto out2; } |