cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

malta-memory.c (1186B)

      1/*
      2 * This file is subject to the terms and conditions of the GNU General Public
      3 * License.  See the file "COPYING" in the main directory of this archive
      4 * for more details.
      5 *
      6 * PROM library functions for acquiring/using memory descriptors given to
      7 * us from the YAMON.
      8 *
      9 * Copyright (C) 1999,2000,2012  MIPS Technologies, Inc.
     10 * All rights reserved.
     11 * Authors: Carsten Langgaard <carstenl@mips.com>
     12 *          Steven J. Hill <sjhill@mips.com>
     13 */
     14#include <linux/init.h>
     15#include <linux/memblock.h>
     16#include <linux/string.h>
     17
     18#include <asm/bootinfo.h>
     19#include <asm/cdmm.h>
     20#include <asm/maar.h>
     21#include <asm/sections.h>
     22#include <asm/fw/fw.h>
     23
     24/* determined physical memory size, not overridden by command line args	 */
     25unsigned long physical_memsize = 0L;
     26
     27static void free_init_pages_eva_malta(void *begin, void *end)
     28{
     29	free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
     30			__pa_symbol((unsigned long *)end));
     31}
     32
     33void __init fw_meminit(void)
     34{
     35	bool eva = IS_ENABLED(CONFIG_EVA);
     36
     37	free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
     38}
     39
     40phys_addr_t mips_cdmm_phys_base(void)
     41{
     42	/* This address is "typically unused" */
     43	return 0x1fc10000;
     44}