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Add new parameter DRM_AMDXDNA_HW_LAST_ASYNC_ERR to get array IOCTL. When hardware reports an error, the driver save the error information and timestamp. This new get array parameter retrieves the last error. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Link: https://lore.kernel.org/r/20251014234119.628453-1-lizhi.hou@amd.com