Re: [PATCH v3 02/12] drm: Unamp the entire device address space on device unplug

Am 21.11.20 um 06:21 schrieb Andrey Grodzovsky:

Invalidate all BOs CPU mappings once device is removed.

v3: Move the code from TTM into drm_dev_unplug

Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com

Reviewed-by: Christian König christian.koenig@amd.com

---

drivers/gpu/drm/drm_drv.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 13068fd..d550fd5 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -479,6 +479,9 @@ void drm_dev_unplug(struct drm_device *dev) synchronize_srcu(&drm_unplug_srcu);

drm_dev_unregister(dev);

• /* Clear all CPU mappings pointing to this device */
• unmap_mapping_range(dev->anon_inode->i_mapping, 0, 0, 1); } EXPORT_SYMBOL(drm_dev_unplug);