Stolen regions are not page backed or considered iomem.
Prevent flags indicating such.
This correctly prevents stolen buffers from attempting to directly map
them.
See i915_gem_object_has_struct_page() and i915_gem_object_has_iomem()
usage for where it would break otherwise.
Signed-off-by: Robert Beckett <[email protected]>
Reviewed-by: Thomas Hellström <[email protected]>
---
drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c
index 358f8a1a30ce..48046cfd8c4b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c
@@ -14,6 +14,7 @@
#include "gem/i915_gem_region.h"
#include "gem/i915_gem_ttm.h"
#include "gem/i915_gem_ttm_move.h"
+#include "gem/i915_gem_stolen.h"
#include "gt/intel_engine_pm.h"
#include "gt/intel_gt.h"
@@ -122,8 +123,9 @@ void i915_ttm_adjust_gem_after_move(struct drm_i915_gem_object *obj)
obj->mem_flags &= ~(I915_BO_FLAG_STRUCT_PAGE | I915_BO_FLAG_IOMEM);
- obj->mem_flags |= i915_ttm_cpu_maps_iomem(bo->resource) ? I915_BO_FLAG_IOMEM :
- I915_BO_FLAG_STRUCT_PAGE;
+ if (!i915_gem_object_is_stolen(obj))
+ obj->mem_flags |= i915_ttm_cpu_maps_iomem(bo->resource) ? I915_BO_FLAG_IOMEM :
+ I915_BO_FLAG_STRUCT_PAGE;
cache_level = i915_ttm_cache_level(to_i915(bo->base.dev), bo->resource,
bo->ttm);
--
2.25.1