Commit 466476df authored Apr 16, 2013 by Jerome Glisse Committed by Alex Deucher Apr 16, 2013

drm/radeon: Always flush the VM

This is slightly cleaned up version of Jerome's patch.
There seems to be an issue tracking the last flush of
the VM which results in hangs in certain cases when
VM is used.  For now just flush the VM for every IB.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=62959
https://bugs.freedesktop.org/show_bug.cgi?id=62997



Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

parent 2ab91ada

drivers/gpu/drm/radeon/radeon_ring.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -180,7 +180,8 @@ int radeon_ib_schedule(struct radeon_device rdev, struct radeon_ib ib,
		radeon_semaphore_free(rdev, &ib->semaphore, NULL);
		}
		/* if we can't remember our last VM flush then flush now! */
		if (ib->vm && !ib->vm->last_flush) {
		/* XXX figure out why we have to flush for every IB */
		if (ib->vm /&& !ib->vm->last_flush/) {
		radeon_ring_vm_flush(rdev, ib->ring, ib->vm);
		}
		if (const_ib) {