mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
261efc3f17
Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables the PS3 lpar address translation mechanism. This is a currently needed workaround for limitations in the design of the generic cell spu support. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
37 lines
952 B
C
37 lines
952 B
C
#ifndef _ASM_POWERPC_SPARSEMEM_H
|
|
#define _ASM_POWERPC_SPARSEMEM_H 1
|
|
#ifdef __KERNEL__
|
|
|
|
#ifdef CONFIG_SPARSEMEM
|
|
/*
|
|
* 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
|
|
*/
|
|
#define SECTION_SIZE_BITS 24
|
|
|
|
#if defined(CONFIG_PS3_USE_LPAR_ADDR)
|
|
#define MAX_PHYSADDR_BITS 47
|
|
#define MAX_PHYSMEM_BITS 47
|
|
#else
|
|
#define MAX_PHYSADDR_BITS 44
|
|
#define MAX_PHYSMEM_BITS 44
|
|
#endif
|
|
|
|
#ifdef CONFIG_MEMORY_HOTPLUG
|
|
extern void create_section_mapping(unsigned long start, unsigned long end);
|
|
#ifdef CONFIG_NUMA
|
|
extern int hot_add_scn_to_nid(unsigned long scn_addr);
|
|
#else
|
|
static inline int hot_add_scn_to_nid(unsigned long scn_addr)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_NUMA */
|
|
#endif /* CONFIG_MEMORY_HOTPLUG */
|
|
|
|
#endif /* CONFIG_SPARSEMEM */
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_SPARSEMEM_H */
|