[Intel-gfx] [PATCH v4 15/18] drm/i915: batch_obj vm offset must be u64

[Michel Thierry]

Otherwise it can overflow in 48-bit mode, and cause an incorrect
exec_start.

Before commit 5f19e2bff ("drm/i915: Merged the many do_execbuf()
parameters into a structure"), it was already an u64, so it could be
seen as a regression (or as an optimization that looked good at that time).

Cc: John Harrison <john.c.harrison at Intel.com>
Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 91e195a..4a30a73 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1671,7 +1671,7 @@ struct i915_execbuffer_params {
 	struct drm_file                 *file;
 	uint32_t                        dispatch_flags;
 	uint32_t                        args_batch_start_offset;
-	uint32_t                        batch_obj_vm_offset;
+	uint64_t                        batch_obj_vm_offset;
 	struct intel_engine_cs          *ring;
 	struct drm_i915_gem_object      *batch_obj;
 	struct intel_context            *ctx;
-- 
2.4.5