diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 79924e4..6751553 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -418,7 +418,7 @@
 	nouveau_fbcon_zfill(dev, fbcon);
 
 	/* To allow resizeing without swapping buffers */
-	NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
+	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
 		nouveau_fb->base.width, nouveau_fb->base.height,
 		nvbo->bo.offset, nvbo);
 
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index d395b0b..8d9b7de 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -74,7 +74,7 @@
 	pr_err("    has_type: %d\n", man->has_type);
 	pr_err("    use_type: %d\n", man->use_type);
 	pr_err("    flags: 0x%08X\n", man->flags);
-	pr_err("    gpu_offset: 0x%08lX\n", man->gpu_offset);
+	pr_err("    gpu_offset: 0x%08llX\n", man->gpu_offset);
 	pr_err("    size: %llu\n", man->size);
 	pr_err("    available_caching: 0x%08X\n", man->available_caching);
 	pr_err("    default_caching: 0x%08X\n", man->default_caching);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 0ccf7f2..c768ddf 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -249,7 +249,7 @@
 	 * either of these locks held.
 	 */
 
-	unsigned long offset;
+	uint64_t offset; /* GPU address space is independent of CPU word size */
 	uint32_t cur_placement;
 
 	struct sg_table *sg;
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 142d752..813042c 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -277,7 +277,7 @@
 	bool has_type;
 	bool use_type;
 	uint32_t flags;
-	unsigned long gpu_offset;
+	uint64_t gpu_offset; /* GPU address space is independent of CPU word size */
 	uint64_t size;
 	uint32_t available_caching;
 	uint32_t default_caching;