[Intel-gfx] [PATCH] drm/i915/gem: Clear read/write domains for GPU clear

[Chris Wilson]

Update the domains for the write via the GPU so that we do not
shortcircuit any set-domain wait afterwards.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110978
Fixes: b2dbf8d982a4 ("drm/i915/blt: Remove recursive vma->lock")
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld at intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_client_blt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
index 9b01c3b5b31d..6f537e8e4dea 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
@@ -162,11 +162,12 @@ static void clear_pages_worker(struct work_struct *work)
 		goto out_signal;
 
 	if (obj->cache_dirty) {
-		obj->write_domain = 0;
 		if (i915_gem_object_has_struct_page(obj))
 			drm_clflush_sg(w->sleeve->pages);
 		obj->cache_dirty = false;
 	}
+	obj->read_domains = I915_GEM_GPU_DOMAINS;
+	obj->write_domain = 0;
 
 	/* XXX: we need to kill this */
 	mutex_lock(&i915->drm.struct_mutex);
-- 
2.20.1