drm/i915: Remove resv from i915_vma

It's just an alias to vma->obj->base.resv, no need to duplicate it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-5-matthew.auld@intel.com

drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c

@@ -990,7 +990,7 @@ static int eb_validate_vmas(struct i915_execbuffer *eb)
 		}
 
 		if (!(ev->flags & EXEC_OBJECT_WRITE)) {
-			err = dma_resv_reserve_shared(vma->resv, 1);
+			err = dma_resv_reserve_shared(vma->obj->base.resv, 1);
 			if (err)
 				return err;
 		}
@@ -2164,7 +2164,7 @@ static int eb_parse(struct i915_execbuffer *eb)
 		goto err_trampoline;
 	}
 
-	err = dma_resv_reserve_shared(shadow->resv, 1);
+	err = dma_resv_reserve_shared(shadow->obj->base.resv, 1);
 	if (err)
 		goto err_trampoline;
 

drivers/gpu/drm/i915/i915_vma.c

@@ -116,7 +116,6 @@ vma_create(struct drm_i915_gem_object *obj,
 	vma->vm = i915_vm_get(vm);
 	vma->ops = &vm->vma_ops;
 	vma->obj = obj;
-	vma->resv = obj->base.resv;
 	vma->size = obj->base.size;
 	vma->display_alignment = I915_GTT_MIN_ALIGNMENT;
 
@@ -1032,7 +1031,7 @@ int i915_ggtt_pin(struct i915_vma *vma, struct i915_gem_ww_ctx *ww,
 	GEM_BUG_ON(!i915_vma_is_ggtt(vma));
 
 #ifdef CONFIG_LOCKDEP
-	WARN_ON(!ww && dma_resv_held(vma->resv));
+	WARN_ON(!ww && dma_resv_held(vma->obj->base.resv));
 #endif
 
 	do {
@@ -1251,19 +1250,19 @@ int _i915_vma_move_to_active(struct i915_vma *vma,
 		}
 
 		if (fence) {
-			dma_resv_add_excl_fence(vma->resv, fence);
+			dma_resv_add_excl_fence(vma->obj->base.resv, fence);
 			obj->write_domain = I915_GEM_DOMAIN_RENDER;
 			obj->read_domains = 0;
 		}
 	} else {
 		if (!(flags & __EXEC_OBJECT_NO_RESERVE)) {
-			err = dma_resv_reserve_shared(vma->resv, 1);
+			err = dma_resv_reserve_shared(vma->obj->base.resv, 1);
 			if (unlikely(err))
 				return err;
 		}
 
 		if (fence) {
-			dma_resv_add_shared_fence(vma->resv, fence);
+			dma_resv_add_shared_fence(vma->obj->base.resv, fence);
 			obj->write_domain = 0;
 		}
 	}

drivers/gpu/drm/i915/i915_vma.h

@@ -234,16 +234,16 @@ static inline void __i915_vma_put(struct i915_vma *vma)
 	kref_put(&vma->ref, i915_vma_release);
 }
 
-#define assert_vma_held(vma) dma_resv_assert_held((vma)->resv)
+#define assert_vma_held(vma) dma_resv_assert_held((vma)->obj->base.resv)
 
 static inline void i915_vma_lock(struct i915_vma *vma)
 {
-	dma_resv_lock(vma->resv, NULL);
+	dma_resv_lock(vma->obj->base.resv, NULL);
 }
 
 static inline void i915_vma_unlock(struct i915_vma *vma)
 {
-	dma_resv_unlock(vma->resv);
+	dma_resv_unlock(vma->obj->base.resv);
 }
 
 int __must_check

drivers/gpu/drm/i915/i915_vma_types.h

@@ -178,7 +178,6 @@ struct i915_vma {
 	const struct i915_vma_ops *ops;
 
 	struct drm_i915_gem_object *obj;
-	struct dma_resv *resv; /** Alias of obj->resv */
 
 	struct sg_table *pages;
 	void __iomem *iomap;