linux-stable/arch/mips/include/asm/sparsemem.h
David Daney 85f993b807 MIPS: Handle huge pages with 64KB base page size.
When using sparsemem, we need to adjust some constants as the resulting
huge pages are 512MB in size.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3745/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:47:02 +02:00

17 lines
445 B
C

#ifndef _MIPS_SPARSEMEM_H
#define _MIPS_SPARSEMEM_H
#ifdef CONFIG_SPARSEMEM
/*
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#if defined(CONFIG_HUGETLB_PAGE) && defined(CONFIG_PAGE_SIZE_64KB)
# define SECTION_SIZE_BITS 29
#else
# define SECTION_SIZE_BITS 28
#endif
#define MAX_PHYSMEM_BITS 35
#endif /* CONFIG_SPARSEMEM */
#endif /* _MIPS_SPARSEMEM_H */