mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
05b79bdcb4
Provide the architecture specific implementation for SPARSEMEM for i386 SMP and NUMA systems. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Martin Bligh <mbligh@aracnet.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
32 lines
786 B
C
32 lines
786 B
C
#ifndef _I386_SPARSEMEM_H
|
|
#define _I386_SPARSEMEM_H
|
|
#ifdef CONFIG_SPARSEMEM
|
|
|
|
/*
|
|
* generic non-linear memory support:
|
|
*
|
|
* 1) we will not split memory into more chunks than will fit into the
|
|
* flags field of the struct page
|
|
*/
|
|
|
|
/*
|
|
* SECTION_SIZE_BITS 2^N: how big each section will be
|
|
* MAX_PHYSADDR_BITS 2^N: how much physical address space we have
|
|
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
|
|
*/
|
|
#ifdef CONFIG_X86_PAE
|
|
#define SECTION_SIZE_BITS 30
|
|
#define MAX_PHYSADDR_BITS 36
|
|
#define MAX_PHYSMEM_BITS 36
|
|
#else
|
|
#define SECTION_SIZE_BITS 26
|
|
#define MAX_PHYSADDR_BITS 32
|
|
#define MAX_PHYSMEM_BITS 32
|
|
#endif
|
|
|
|
/* XXX: FIXME -- wli */
|
|
#define kern_addr_valid(kaddr) (0)
|
|
|
|
#endif /* CONFIG_SPARSEMEM */
|
|
#endif /* _I386_SPARSEMEM_H */
|