mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 19:25:05 +07:00
048ee0993e
Increase max addressable range to 64TB. This is not tested on real hardware yet. Reviewed-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
33 lines
905 B
C
33 lines
905 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
|
|
|
|
#define MAX_PHYSADDR_BITS 46
|
|
#define MAX_PHYSMEM_BITS 46
|
|
|
|
#endif /* CONFIG_SPARSEMEM */
|
|
|
|
#ifdef CONFIG_MEMORY_HOTPLUG
|
|
extern int create_section_mapping(unsigned long start, unsigned long end);
|
|
extern int remove_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 /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_SPARSEMEM_H */
|