3.5.7.3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <[email protected]>

commit 668bbc81baf0f34df832d8aca5c7d5e19a493c68 upstream.

It's used in a recent mesa commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=24b1206ab2dcd506aaac3ef656aebc8bc20cd27a
and there may be some other cases in the future where it's required.

Signed-off-by: Alex Deucher <[email protected]>
Reviewed-by: Jerome Glisse <[email protected]>
Signed-off-by: Herton Ronaldo Krzesinski <[email protected]>
---
 drivers/gpu/drm/radeon/evergreen_cs.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c 
b/drivers/gpu/drm/radeon/evergreen_cs.c
index 33aeaa5..4324c0d 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -2672,6 +2672,7 @@ static bool evergreen_vm_reg_valid(u32 reg)
 
        /* check config regs */
        switch (reg) {
+       case WAIT_UNTIL:
        case GRBM_GFX_INDEX:
        case CP_STRMOUT_CNTL:
        case CP_COHER_CNTL:
-- 
1.7.9.5

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