GENMASK_ULL wants the high bit of the mask first. The current value
cancels the in-fence when an out-fence is returned

Fixes: fec0445caa273 ("drm/i915: Support explicit fencing for execbuf")
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index b15305f2fb76..ed6e9db51e67 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -2410,7 +2410,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
        if (out_fence) {
                if (err == 0) {
                        fd_install(out_fence_fd, out_fence->file);
-                       args->rsvd2 &= GENMASK_ULL(0, 31); /* keep in-fence */
+                       args->rsvd2 &= GENMASK_ULL(31, 0); /* keep in-fence */
                        args->rsvd2 |= (u64)out_fence_fd << 32;
                        out_fence_fd = -1;
                } else {
-- 
2.16.1

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