[Intel-gfx] [PATCH v1] drm/i915/guc: Fix a fw content lost issue after it is evicted

[yu.dai at intel.com]

From: Alex Dai <yu.dai at intel.com>

We keep a copy of GuC fw in a GEM obj. However its content is lost
if the GEM obj is swapped (igt/gem_evict_*). Therefore, the later
fw loading during GPU reset will fail. Mark the obj dirty after
copying data into the pages. So its content will be kept during
swapped out.

Signed-off-by: Alex Dai <yu.dai at intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index f1e3fde..3b15167 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5199,6 +5199,7 @@ i915_gem_object_create_from_data(struct drm_device *dev,
 	i915_gem_object_pin_pages(obj);
 	sg = obj->pages;
 	bytes = sg_copy_from_buffer(sg->sgl, sg->nents, (void *)data, size);
+	obj->dirty = 1;
 	i915_gem_object_unpin_pages(obj);
 
 	if (WARN_ON(bytes != size)) {
-- 
2.5.0