OpenCloudOS-Kernel/arch/alpha/include/asm/sparsemem.h

19 lines
410 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ALPHA_SPARSEMEM_H
#define _ASM_ALPHA_SPARSEMEM_H
#ifdef CONFIG_SPARSEMEM
#define SECTION_SIZE_BITS 27
/*
* According to "Alpha Architecture Reference Manual" physical
* addresses are at most 48 bits.
* https://download.majix.org/dec/alpha_arch_ref.pdf
*/
#define MAX_PHYSMEM_BITS 48
#endif /* CONFIG_SPARSEMEM */
#endif /* _ASM_ALPHA_SPARSEMEM_H */