31 lines
895 B
C
31 lines
895 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _PPC_BOOT_PAGE_H
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#define _PPC_BOOT_PAGE_H
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/*
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* Copyright (C) 2001 PPC64 Team, IBM Corp
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*/
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#ifdef __ASSEMBLY__
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#define ASM_CONST(x) x
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#else
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#define __ASM_CONST(x) x##UL
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#define ASM_CONST(x) __ASM_CONST(x)
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#endif
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/* PAGE_SHIFT determines the page size */
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE-1))
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/* align addr on a size boundary - adjust address up/down if needed */
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#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((typeof(addr))(size)-1)))
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#define _ALIGN_DOWN(addr, size) ((addr)&(~((typeof(addr))(size)-1)))
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/* align addr on a size boundary - adjust address up if needed */
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#define _ALIGN(addr,size) _ALIGN_UP(addr,size)
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/* to align the pointer to the (next) page boundary */
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#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
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#endif /* _PPC_BOOT_PAGE_H */
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