From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Subject: [PATCH v2 07/11] drm/ttm: drop VM_DONTDUMP Date: Tue, 17 Sep 2019 11:24:00 +0200 Message-ID: <20190917092404.9982-8-kraxel@redhat.com> References: <20190917092404.9982-1-kraxel@redhat.com> Return-path: In-Reply-To: <20190917092404.9982-1-kraxel@redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: Thomas Zimmermann , Daniel Vetter , Gerd Hoffmann , Christian Koenig , Huang Rui , David Airlie , Daniel Vetter , open list List-Id: dri-devel@lists.freedesktop.org Not obvious why this is needed. According to Deniel Vetter this is most likely a historic artefact dating back to the days where drm drivers exposed hardware registers as mmap'able gem objects, to avoid dumping touching those registers. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/ttm/ttm_bo_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 7c0e85c10e0e..4dc77a66aaf6 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -445,7 +445,7 @@ void ttm_bo_mmap_vma_setup(struct ttm_buffer_object *bo, struct vm_area_struct * * VM_MIXEDMAP on all mappings. See freedesktop.org bug #75719 */ vma->vm_flags |= VM_MIXEDMAP; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_flags |= VM_IO | VM_DONTEXPAND; } EXPORT_SYMBOL(ttm_bo_mmap_vma_setup); -- 2.18.1