2016-02-19 22:50:50 +01:00
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/*
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* This file is part of the coreboot project.
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*
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* This program 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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2019-06-30 22:12:15 +02:00
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* the Free Software Foundation; version 2 of the License.
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2016-02-19 22:50:50 +01:00
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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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2019-08-07 06:40:53 +02:00
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/*
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* Used in probe_ramsize(). This is a weak function and it's overridden for
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* ARMv8. Return 1 when DRAM exists at the address, otherwise return 0.
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*/
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int probe_mb(const uintptr_t dram_start, const uintptr_t size);
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2019-06-30 22:12:15 +02:00
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/*
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* Probe an area if it's read/writable.
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* Primary use case is the detection of DRAM amount on emulators.
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*
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* @param dram_start Physical address of DRAM start
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* @param probe_size Maximum size in MiB to probe for
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* @return The detected DRAM size in MiB
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*/
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size_t probe_ramsize(const uintptr_t dram_start, const size_t probe_size);
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