cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rtd1195.c (912B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Realtek RTD1195
      4 *
      5 * Copyright (c) 2017-2019 Andreas Färber
      6 */
      7
      8#include <linux/memblock.h>
      9#include <asm/mach/arch.h>
     10
     11static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
     12{
     13	int ret;
     14
     15	ret = memblock_remove(base, size);
     16	if (ret)
     17		pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
     18}
     19
     20static void __init rtd1195_reserve(void)
     21{
     22	/* Exclude boot ROM from RAM */
     23	rtd1195_memblock_remove(0x00000000, 0x0000a800);
     24
     25	/* Exclude peripheral register spaces from RAM */
     26	rtd1195_memblock_remove(0x18000000, 0x00070000);
     27	rtd1195_memblock_remove(0x18100000, 0x01000000);
     28}
     29
     30static const char *const rtd1195_dt_compat[] __initconst = {
     31	"realtek,rtd1195",
     32	NULL
     33};
     34
     35DT_MACHINE_START(rtd1195, "Realtek RTD1195")
     36	.dt_compat = rtd1195_dt_compat,
     37	.reserve = rtd1195_reserve,
     38	.l2c_aux_val = 0x0,
     39	.l2c_aux_mask = ~0x0,
     40MACHINE_END