Commit 18f968cb authored by Gwan-gyeong Mun's avatar Gwan-gyeong Mun Committed by Rodrigo Vivi
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drm/i915: Use error code as -E2BIG when the size of gem ttm object is too large 



The ttm_bo_init_reserved() functions returns -ENOSPC if the size is too big
to add vma. The direct function that returns -ENOSPC is
drm_mm_insert_node_in_range().
To handle the same error as other code returning -E2BIG when the size is
too large, it converts return value to -E2BIG.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: default avatarGwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: default avatarNirmoy Das <nirmoy.das@intel.com>
Reviewed-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
Reviewed-by: default avatarAndrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221228192252.917299-6-gwan-gyeong.mun@intel.com
parent 662c04e2

drivers/gpu/drm/i915/gem/i915_gem_ttm.c

+11 −0
Original line number Diff line number Diff line
@@ -1309,6 +1309,17 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, 
	ret = ttm_bo_init_reserved(&i915->bdev, i915_gem_to_ttm(obj), bo_type,

				   &i915_sys_placement, page_size >> PAGE_SHIFT,

				   &ctx, NULL, NULL, i915_ttm_bo_destroy);



	/*

	 * XXX: The ttm_bo_init_reserved() functions returns -ENOSPC if the size

	 * is too big to add vma. The direct function that returns -ENOSPC is

	 * drm_mm_insert_node_in_range(). To handle the same error as other code

	 * that returns -E2BIG when the size is too large, it converts -ENOSPC to

	 * -E2BIG.

	 */

	if (size >> PAGE_SHIFT > INT_MAX && ret == -ENOSPC)

		ret = -E2BIG;



	if (ret)

		return i915_ttm_err_to_gem(ret);