drm/radeon/kms: allow interruptible waits for objects.

Blocking here isn't something the X server mouse appreciates,
avoid the block and let userspace retry the waits.

libdrm_radeon userspace library is also expecting EBUSY not ERESTART

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 96afbf5..b4e48dd 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -195,7 +195,7 @@ retry:
                r = wait_event_interruptible_timeout(rdev->fence_drv.queue,
                                radeon_fence_signaled(fence), timeout);
                if (unlikely(r == -ERESTARTSYS)) {
-                       return -ERESTART;
+                       return -EBUSY;
                }
        } else {
                r = wait_event_timeout(rdev->fence_drv.queue,

diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 81573c3..dd9ac2f 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -309,7 +309,7 @@ int radeon_object_wait(struct radeon_object *robj)
        }
        spin_lock(&robj->tobj.lock);
        if (robj->tobj.sync_obj) {
-               r = ttm_bo_wait(&robj->tobj, true, false, false);
+               r = ttm_bo_wait(&robj->tobj, true, true, false);
        }
        spin_unlock(&robj->tobj.lock);
        radeon_object_unreserve(robj);