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| author | Andy Whitcroft | 2005-06-23 09:08:03 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2005-06-23 18:45:06 +0200 |
| commit | 145e664231648121026d470094c200851a446a73 (patch) | |
| tree | c9362f4ec3e3114afb9b7134ae89152cbbc73cd4 /include/asm-ppc64/sparsemem.h | |
| parent | [PATCH] ppc64: add memory present (diff) | |
| download | kernel-qcow2-linux-145e664231648121026d470094c200851a446a73.tar.gz kernel-qcow2-linux-145e664231648121026d470094c200851a446a73.tar.xz kernel-qcow2-linux-145e664231648121026d470094c200851a446a73.zip | |
[PATCH] ppc64: sparsemem memory model
Provide the architecture specific implementation for SPARSEMEM for PPC64
systems.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> (in part)
Signed-off-by: Martin Bligh <mbligh@aracnet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-ppc64/sparsemem.h')
| -rw-r--r-- | include/asm-ppc64/sparsemem.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-ppc64/sparsemem.h b/include/asm-ppc64/sparsemem.h new file mode 100644 index 000000000000..c5bd47e57f17 --- /dev/null +++ b/include/asm-ppc64/sparsemem.h @@ -0,0 +1,16 @@ +#ifndef _ASM_PPC64_SPARSEMEM_H +#define _ASM_PPC64_SPARSEMEM_H 1 + +#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 38 +#define MAX_PHYSMEM_BITS 36 + +#endif /* CONFIG_SPARSEMEM */ + +#endif /* _ASM_PPC64_SPARSEMEM_H */ |