55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* Copyright 2014 GE Intelligent Platforms, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <common.h>
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#include <asm/cache.h>
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#include <mach/mmu.h>
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void remap_range(void *_start, size_t size, uint32_t flags)
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{
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uint32_t ptr, start, tsize, valid, wimge;
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unsigned long epn;
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phys_addr_t rpn = 0;
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int esel = 0;
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ptr = start = (uint32_t)_start;
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wimge = flags | MAS2_M;
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while (ptr < (start + size)) {
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esel = e500_find_tlb_idx((void *)ptr, 1);
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if (esel != -1)
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break;
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e500_read_tlbcam_entry(esel, &valid, &tsize, &epn,
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&rpn);
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if (flags & MAS2_I) {
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flush_dcache();
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invalidate_icache();
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}
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e500_set_tlb(1, epn, rpn, MAS3_SX|MAS3_SW|MAS3_SR,
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(u8)wimge, 0, esel, tsize, 1);
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/* convert tsize to bytes to increment address. */
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ptr += (1ULL << ((tsize) + 10));
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}
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}
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uint32_t mmu_get_pte_cached_flags(void)
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{
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return 0;
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}
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uint32_t mmu_get_pte_uncached_flags(void)
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{
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return MAS2_I;
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}
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