WIP FPC-III support
[linux/fpc-iii.git] / arch / arm / include / asm / sparsemem.h
blobd362233856a5baaa4a3f2b063bd529141917802b
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef ASMARM_SPARSEMEM_H
3 #define ASMARM_SPARSEMEM_H
5 #include <asm/memory.h>
7 /*
8 * Two definitions are required for sparsemem:
10 * MAX_PHYSMEM_BITS: The number of physical address bits required
11 * to address the last byte of memory.
13 * SECTION_SIZE_BITS: The number of physical address bits to cover
14 * the maximum amount of memory in a section.
16 * Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
17 * then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
19 * These can be overridden in your mach/memory.h.
21 #if !defined(MAX_PHYSMEM_BITS) || !defined(SECTION_SIZE_BITS)
22 #define MAX_PHYSMEM_BITS 36
23 #define SECTION_SIZE_BITS 28
24 #endif
26 #endif