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ARMv8.2 introduces support for 52-bit physical addresses. To prepare for supporting this, add a new kconfig symbol to configure the physical address space size. The symbols will be used in subsequent patches. Currently the only choice is 48, a later patch will add the option of 52 once the required code is in place. Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Tested-by: Bob Picco <bob.picco@oracle.com> Reviewed-by: Bob Picco <bob.picco@oracle.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> [catalin.marinas@arm.com: folded minor patches into this one] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
25 lines
789 B
C
25 lines
789 B
C
/*
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* Copyright (C) 2012 ARM Ltd.
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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 version 2 as
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* published by the Free Software Foundation.
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_SPARSEMEM_H
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#define __ASM_SPARSEMEM_H
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#ifdef CONFIG_SPARSEMEM
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#define MAX_PHYSMEM_BITS CONFIG_ARM64_PA_BITS
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#define SECTION_SIZE_BITS 30
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#endif
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#endif
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