The exynos g2d interface is very unusual, but it looks like the userptr objects are persistent. Hence they need FOLL_LONGTERM.
Signed-off-by: Daniel Vetter <[email protected]> Cc: Jason Gunthorpe <[email protected]> Cc: Inki Dae <[email protected]> Cc: Joonyoung Shim <[email protected]> Cc: Seung-Woo Kim <[email protected]> Cc: Kyungmin Park <[email protected]> Cc: Kukjin Kim <[email protected]> Cc: Krzysztof Kozlowski <[email protected]> Cc: Andrew Morton <[email protected]> Cc: John Hubbard <[email protected]> Cc: Jérôme Glisse <[email protected]> Cc: Jan Kara <[email protected]> Cc: Dan Williams <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Daniel Vetter <[email protected]> --- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index ecede41af9b9..1e0c5a7f206e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -475,7 +475,8 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d, goto err_free; } - ret = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE, + ret = pin_user_pages_fast(start, npages, + FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM, g2d_userptr->pages); if (ret != npages) { DRM_DEV_ERROR(g2d->dev, -- 2.28.0 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
