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https://github.com/edk2-porting/linux-next.git
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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
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#define _ASM_POWERPC_SPARSEMEM_H 1
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#ifdef __KERNEL__
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#ifdef CONFIG_SPARSEMEM
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/*
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* SECTION_SIZE_BITS 2^N: how big each section will be
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* MAX_PHYSADDR_BITS 2^N: how much physical address space we have
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* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
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*/
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#define SECTION_SIZE_BITS 24
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#if defined(CONFIG_PS3_USE_LPAR_ADDR)
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#define MAX_PHYSADDR_BITS 47
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#define MAX_PHYSMEM_BITS 47
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#else
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#define MAX_PHYSADDR_BITS 44
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#define MAX_PHYSMEM_BITS 44
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#endif
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#ifdef CONFIG_MEMORY_HOTPLUG
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extern void create_section_mapping(unsigned long start, unsigned long end);
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#ifdef CONFIG_NUMA
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extern int hot_add_scn_to_nid(unsigned long scn_addr);
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#else
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static inline int hot_add_scn_to_nid(unsigned long scn_addr)
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{
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return 0;
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}
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#endif /* CONFIG_NUMA */
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#endif /* CONFIG_MEMORY_HOTPLUG */
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#endif /* CONFIG_SPARSEMEM */
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_SPARSEMEM_H */
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