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58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2017 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_MEMORY_CPU_HEADER
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#define GRUB_MEMORY_CPU_HEADER 1
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#ifndef ASM_FILE
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#include <grub/symbol.h>
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#include <grub/err.h>
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#include <grub/types.h>
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#endif
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#ifndef ASM_FILE
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typedef grub_addr_t grub_phys_addr_t;
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static inline grub_phys_addr_t
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grub_vtop (void *a)
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{
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if (-1 == ((grub_int64_t) a >> 32))
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return ((grub_phys_addr_t) a) & 0x1fffffffUL;
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return ((grub_phys_addr_t) a) & 0xffffffffffffUL;
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}
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static inline void *
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grub_map_memory (grub_phys_addr_t a, grub_size_t size)
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{
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if ((a + size) < 0x20000000UL)
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return (void *) (a | 0xffffffff80000000UL);
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// return (void *) (a | 0x9800000000000000UL);
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return (void *) ((a&0x8fffffff) | 0xffffffff00000000UL);
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}
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static inline void
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grub_unmap_memory (void *a __attribute__ ((unused)),
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grub_size_t size __attribute__ ((unused)))
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{
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}
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#endif
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#endif
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