From 466476dfdcafbb4286ffa232a3a792731b9dc852 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 16 Apr 2013 12:20:15 -0400 Subject: [PATCH] drm/radeon: Always flush the VM MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_ring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 31e47d898c46..e17faa7cf732 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -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) { -- 2.30.2