1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _MIPS_SPARSEMEM_H 3*4882a593Smuzhiyun #define _MIPS_SPARSEMEM_H 4*4882a593Smuzhiyun #ifdef CONFIG_SPARSEMEM 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun /* 7*4882a593Smuzhiyun * SECTION_SIZE_BITS 2^N: how big each section will be 8*4882a593Smuzhiyun * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) && defined(CONFIG_PAGE_SIZE_64KB) 11*4882a593Smuzhiyun # define SECTION_SIZE_BITS 29 12*4882a593Smuzhiyun #else 13*4882a593Smuzhiyun # define SECTION_SIZE_BITS 28 14*4882a593Smuzhiyun #endif 15*4882a593Smuzhiyun #define MAX_PHYSMEM_BITS 48 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #endif /* CONFIG_SPARSEMEM */ 18*4882a593Smuzhiyun #endif /* _MIPS_SPARSEMEM_H */ 19