/* * Copyright (C) 2015-2016, Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ SECTIONS { .bss.dma (NOLOAD) : AT(_ebss_pre_dma_addr) ALIGN (32) { /* IMRs are used to restrict DMA, and they require 1K physical address alignment. */ . += ALIGN(_ebss_pre_dma_addr, 1K) - ALIGN(_ebss_pre_dma_addr, 32); *(.dma_bss) } _sbss_dma_addr = LOADADDR(.bss.dma) + ALIGN(_ebss_pre_dma_addr, 1K) - ALIGN(_ebss_pre_dma_addr, 32); /* Effectively pointing beyond the end of .bss.dma is acceptable, since .bss.dma is the last section in memory. */ _ebss_dma_addr = ALIGN(LOADADDR(.bss.dma) + SIZEOF(.bss.dma), 1K); }